* src/pic16/device.c (Pics16[]): moved device descriptions to devices.inc

[fw/sdcc] / src / pic16 / gen.c

 /*-------------------------------------------------------------------------
 gen.c - source file for code generation for pic16

  Written By -  Sandeep Dutta . sandeep.dutta@usa.net (1998)
         and -  Jean-Louis VERN.jlvern@writeme.com (1999)
  Bug Fixes  -  Wojciech Stryjewski  wstryj1@tiger.lsu.edu (1999 v2.1.9a)
  PIC port   -  Scott Dattalo scott@dattalo.com (2000)
  PIC16 port -  Martin Dubuc m.dubuc@rogers.com (2002)
             -  Vangelis Rokas vrokas@otenet.gr (2003,2004,2005)
  Bug Fixes  -  Raphael Neider rneider@web.de (2004,2005)
  
  This program is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published by the
  Free Software Foundation; either version 2, or (at your option) any
  later version.
  
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  
  In other words, you are welcome to use, share and improve this program.
  You are forbidden to forbid anyone else to use, share and improve
  what you give them.   Help stamp out software-hoarding!
  
  Notes:
  000123 mlh    Moved aopLiteral to SDCCglue.c to help the split
                Made everything static
-------------------------------------------------------------------------*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "SDCCglobl.h"
#include "newalloc.h"

#include "common.h"
#include "SDCCpeeph.h"
#include "ralloc.h"
#include "pcode.h"
#include "gen.h"
#include "genutils.h"
#include "device.h"
#include "main.h"

/* Set the following to 1 to enable the slower/bigger
 * but more robust generic shifting routine (which also
 * operates correctly with negative shift values). */
#define USE_GENERIC_SIGNED_SHIFT 1

/* Set the following to 1 to enable the new
 * stripped down genCmp version.
 * This version should be easier to understand,
 * more reliable and (sigh) slighly slower. */
#define USE_SIMPLE_GENCMP 1

extern void pic16_genUMult8X8_16 (operand *, operand *,operand *,pCodeOpReg *);
extern void pic16_genSMult8X8_16 (operand *, operand *,operand *,pCodeOpReg *);
void pic16_genMult8X8_8 (operand *, operand *,operand *);
void pic16_genMult16X16_16(operand *, operand *, operand *);
void pic16_genMult32X32_32(operand *, operand *, operand *);
pCode *pic16_AssembleLine(char *line, int peeps);
extern void pic16_printpBlock(FILE *of, pBlock *pb);
static asmop *newAsmop (short type);
static pCodeOp *pic16_popRegFromString(char *str, int size, int offset, operand *op);
extern pCode *pic16_newpCodeAsmDir(char *asdir, char *argfmt, ...);
static void mov2fp(pCodeOp *dst, asmop *src, int offset);
static pCodeOp *pic16_popRegFromIdx(int rIdx);

//static int aopIdx (asmop *aop, int offset);

int pic16_labelOffset=0;
extern int pic16_debug_verbose;
#if !(USE_GENERIC_SIGNED_SHIFT)
static int optimized_for_speed = 0;
#endif
/*
  hack hack

*/

extern set *externs;

/* max_key keeps track of the largest label number used in 
   a function. This is then used to adjust the label offset
   for the next function.
*/
static int max_key=0;
static int GpsuedoStkPtr=0;

pCodeOp *pic16_popGetImmd(char *name, unsigned int offset, int index);

unsigned int pic16aopLiteral (value *val, int offset);
const char *pic16_AopType(short type);
static iCode *ifxForOp ( operand *op, iCode *ic );

void pic16_pushpCodeOp(pCodeOp *pcop);
void pic16_poppCodeOp(pCodeOp *pcop);

static bool is_LitOp(operand *op);
static bool is_LitAOp(asmop *aop);


#define BYTEofLONG(l,b) ( (l>> (b<<3)) & 0xff)

/* set the following macro to 1 to enable passing the
 * first byte of functions parameters via WREG */
#define USE_WREG_IN_FUNC_PARAMS 0


/* this is the down and dirty file with all kinds of 
   kludgy & hacky stuff. This is what it is all about
   CODE GENERATION for a specific MCU . some of the
   routines may be reusable, will have to see */

static char *zero = "#0x00";
static char *one  = "#0x01";
//static char *spname = "sp";


/*
 * Function return value policy (MSB-->LSB):
 *  8 bits      -> WREG
 * 16 bits      -> PRODL:WREG
 * 24 bits      -> PRODH:PRODL:WREG
 * 32 bits      -> FSR0L:PRODH:PRODL:WREG
 * >32 bits     -> on stack, and FSR0 points to the beginning
 *
 */
 

char *fReturnpic16[] = {"WREG", "PRODL", "PRODH", "FSR0L" };
int fReturnIdx[] = {IDX_WREG, IDX_PRODL, IDX_PRODH, IDX_FSR0L };
unsigned pic16_fReturnSizePic = 4; /* shared with ralloc.c */
static char **fReturn = fReturnpic16;

static char *accUse[] = {"WREG"};

//static short rbank = -1;

static struct {
    short r0Pushed;
    short r1Pushed;
    short fsr0Pushed;
    short accInUse;
    short inLine;
    short debugLine;
    short nRegsSaved;
    short ipushRegs;
    set *sendSet;
    set *stackRegSet;
    int usefastretfie;
    bitVect *fregsUsed;                 /* registers used in function */
    bitVect *sregsAlloc;
    set *sregsAllocSet;                 /* registers used to store stack variables */
    int stack_lat;                      /* stack offset latency */
    int resDirect;
    int useWreg;                        /* flag when WREG is used to pass function parameter */
} _G;

extern int pic16_ptrRegReq ;
extern int pic16_nRegs;
extern FILE *codeOutFile;
//static void saverbank (int, iCode *,bool);

static lineNode *lineHead = NULL;
static lineNode *lineCurr = NULL;

static unsigned char   SLMask[] = {0xFF ,0xFE, 0xFC, 0xF8, 0xF0,
0xE0, 0xC0, 0x80, 0x00};
static unsigned char   SRMask[] = {0xFF, 0x7F, 0x3F, 0x1F, 0x0F,
0x07, 0x03, 0x01, 0x00};

static  pBlock *pb;

/*-----------------------------------------------------------------*/
/*  my_powof2(n) - If `n' is an integaer power of 2, then the      */
/*                 exponent of 2 is returned, otherwise -1 is      */
/*                 returned.                                       */
/* note that this is similar to the function `powof2' in SDCCsymt  */
/* if(n == 2^y)                                                    */
/*   return y;                                                     */
/* return -1;                                                      */
/*-----------------------------------------------------------------*/
int pic16_my_powof2 (unsigned long num)
{
  if(num) {
    if( (num & (num-1)) == 0) {
      int nshifts = -1;
      while(num) {
        num>>=1;
        nshifts++;
      }
      return nshifts;
    }
  }

  return -1;
}

void DEBUGpic16_pic16_AopType(int line_no, operand *left, operand *right, operand *result)
{
  DEBUGpic16_emitcode ("; ","line = %d result %s=%s, left %s=%s, right %s=%s, size = %d",
                       line_no,
                       ((result) ? pic16_AopType(AOP_TYPE(result)) : "-"),
                       ((result) ? pic16_aopGet(AOP(result),0,TRUE,FALSE) : "-"),
                       ((left)   ? pic16_AopType(AOP_TYPE(left)) : "-"),
                       ((left)   ? pic16_aopGet(AOP(left),0,TRUE,FALSE) : "-"),
                       ((right)  ? pic16_AopType(AOP_TYPE(right)) : "-"),
                       ((right)  ? pic16_aopGet(AOP(right),0,FALSE,FALSE) : "-"),
                       ((result) ? AOP_SIZE(result) : 0));
}

void DEBUGpic16_pic16_AopTypeSign(int line_no, operand *left, operand *right, operand *result)
{

  DEBUGpic16_emitcode ("; ","line = %d, signs: result %s=%c, left %s=%c, right %s=%c",
                       line_no,
                       ((result) ? pic16_AopType(AOP_TYPE(result)) : "-"),
                       ((result) ? (SPEC_USIGN(operandType(result)) ? 'u' : 's') : '-'),
                       ((left)   ? pic16_AopType(AOP_TYPE(left)) : "-"),
                       ((left)   ? (SPEC_USIGN(operandType(left))   ? 'u' : 's') : '-'),
                       ((right)  ? pic16_AopType(AOP_TYPE(right)) : "-"),
                       ((right)  ? (SPEC_USIGN(operandType(right))  ? 'u' : 's') : '-'));

}

void pic16_emitpcomment (char *fmt, ...)
{
    va_list ap;
    char lb[INITIAL_INLINEASM];  
    unsigned char *lbp = lb;

    va_start(ap,fmt);   

    lb[0] = ';';
    vsprintf(lb+1,fmt,ap);

    while (isspace(*lbp)) lbp++;

    if (lbp && *lbp) 
        lineCurr = (lineCurr ?
                    connectLine(lineCurr,newLineNode(lb)) :
                    (lineHead = newLineNode(lb)));
    lineCurr->isInline = _G.inLine;
    lineCurr->isDebug  = _G.debugLine;

    pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(lb));
    va_end(ap);

//      fprintf(stderr, "%s\n", lb);
}

void DEBUGpic16_emitcode (char *inst,char *fmt, ...)
{
    va_list ap;
    char lb[INITIAL_INLINEASM];  
    unsigned char *lbp = lb;

    if(!pic16_debug_verbose)
      return;

    va_start(ap,fmt);   

    if (inst && *inst) {
        if (fmt && *fmt)
            sprintf(lb,"%s\t",inst);
        else
            sprintf(lb,"%s",inst);
        vsprintf(lb+(strlen(lb)),fmt,ap);
    }  else
        vsprintf(lb,fmt,ap);

    while (isspace(*lbp)) lbp++;

    if (lbp && *lbp) 
        lineCurr = (lineCurr ?
                    connectLine(lineCurr,newLineNode(lb)) :
                    (lineHead = newLineNode(lb)));
    lineCurr->isInline = _G.inLine;
    lineCurr->isDebug  = _G.debugLine;

    pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(lb));
    va_end(ap);

//      fprintf(stderr, "%s\n", lb);
}



void pic16_emitpLabel(int key)
{
  pic16_addpCode2pBlock(pb,pic16_newpCodeLabel(NULL,key+100+pic16_labelOffset));
}

void pic16_emitpLabelFORCE(int key)
{
  pic16_addpCode2pBlock(pb,pic16_newpCodeLabelFORCE(NULL,key+100+pic16_labelOffset));
}

/* gen.h defines a macro pic16_emitpcode that allows for debug information to be inserted on demand
 * NEVER call pic16_emitpcode_real directly, please... */
void pic16_emitpcode_real(PIC_OPCODE poc, pCodeOp *pcop)
{

  if(pcop)
    pic16_addpCode2pBlock(pb,pic16_newpCode(poc,pcop));
  else
    DEBUGpic16_emitcode(";","%s  ignoring NULL pcop",__FUNCTION__);
}

void pic16_emitpinfo(INFO_TYPE itype, pCodeOp *pcop)
{
  if(pcop)
    pic16_addpCode2pBlock(pb, pic16_newpCodeInfo(itype, pcop));
  else
    DEBUGpic16_emitcode(";","%s  ignoring NULL pcop",__FUNCTION__);
}
  
void pic16_emitpcodeNULLop(PIC_OPCODE poc)
{

  pic16_addpCode2pBlock(pb,pic16_newpCode(poc,NULL));

}


#if 1
#define pic16_emitcode  DEBUGpic16_emitcode
#else
/*-----------------------------------------------------------------*/
/* pic16_emitcode - writes the code into a file : for now it is simple    */
/*-----------------------------------------------------------------*/
void pic16_emitcode (char *inst,char *fmt, ...)
{
    va_list ap;
    char lb[INITIAL_INLINEASM];  
    unsigned char *lbp = lb;

    va_start(ap,fmt);   

    if (inst && *inst) {
        if (fmt && *fmt)
            sprintf(lb,"%s\t",inst);
        else
            sprintf(lb,"%s",inst);
        vsprintf(lb+(strlen(lb)),fmt,ap);
    }  else
        vsprintf(lb,fmt,ap);

    while (isspace(*lbp)) lbp++;

    if (lbp && *lbp) 
        lineCurr = (lineCurr ?
                    connectLine(lineCurr,newLineNode(lb)) :
                    (lineHead = newLineNode(lb)));
    lineCurr->isInline = _G.inLine;
    lineCurr->isDebug  = _G.debugLine;

// VR    fprintf(stderr, "lb = <%s>\n", lbp);

//    if(pic16_debug_verbose)
//      pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(lb));

    va_end(ap);
}
#endif


/*-----------------------------------------------------------------*/
/* pic16_emitDebuggerSymbol - associate the current code location  */
/*   with a debugger symbol                                        */
/*-----------------------------------------------------------------*/
void
pic16_emitDebuggerSymbol (char * debugSym)
{
  _G.debugLine = 1;
  pic16_emitcode (";", "%s ==.", debugSym);
  _G.debugLine = 0;
}


/*-----------------------------------------------------------------*/
/* getFreePtr - returns r0 or r1 whichever is free or can be pushed*/
/*-----------------------------------------------------------------*/
static regs *getFreePtr (iCode *ic, asmop **aopp, bool result)
{
//    bool r0iu = FALSE , r1iu = FALSE;
//    bool r0ou = FALSE , r1ou = FALSE;
    bool fsr0iu = FALSE, fsr0ou;
    bool fsr2iu = FALSE, fsr2ou;
    
    fprintf(stderr, "%s:%d: getting free ptr from ic = %c result: %d\n", __FUNCTION__, __LINE__, ic->op, result);

    
    fsr2iu = bitVectBitValue(ic->rUsed, IDX_FSR2);
    fsr0iu = bitVectBitValue(ic->rUsed, IDX_FSR0);
    
    fsr2ou = bitVectBitValue(ic->rMask, IDX_FSR2);
    fsr0ou = bitVectBitValue(ic->rMask, IDX_FSR0);

    if(bitVectBitValue(ic->rUsed, IDX_WREG)) {
        fprintf(stderr, "%s:%d WREG is used by this ic\n", __FILE__, __LINE__);
        DEBUGpic16_emitcode("%s:%d WREG is used by this ic", __FILE__, __LINE__);
    }

    if(!fsr0iu && !fsr0ou) {
        ic->rUsed = bitVectSetBit(ic->rUsed, IDX_FSR0);
        (*aopp)->type = AOP_FSR0;

        fprintf(stderr, "%s:%d returning plain FSR0\n", __FILE__, __LINE__);
        
      return ((*aopp)->aopu.aop_ptr = pic16_regWithIdx(IDX_FSR0));
    }

#if 0
    /* no usage of FSR2 */
    if(!fsr2iu && !fsr2ou) {
        ic->rUsed = bitVectSetBit(ic->rUsed, IDX_FSR2);
        (*aopp)->type = AOP_FSR2;

      return (*aopp)->aopu.aop_ptr = pic16_regWithIdx(IDX_FSR2);
    }
#endif
        
    /* now we know they both have usage */
    /* if fsr0 not used in this instruction */
    if (!fsr0iu) {
        if (!_G.fsr0Pushed) {
                pic16_pushpCodeOp( pic16_popCopyReg(&pic16_pc_fsr0l) );
                pic16_pushpCodeOp( pic16_popCopyReg(&pic16_pc_fsr0h) );
                _G.fsr0Pushed++;
        }

        ic->rUsed = bitVectSetBit (ic->rUsed, IDX_FSR0);
        (*aopp)->type = AOP_FSR0;

//      fprintf(stderr, "%s:%d returning FSR0 after pushing value to stack\n", __FILE__, __LINE__);

      return (*aopp)->aopu.aop_ptr = pic16_regWithIdx (IDX_FSR0);
    }
        

    fprintf(stderr, "%s:%d could not allocate a free pointer\n", __FILE__, __LINE__);
    assert( 0 );

    return NULL;
#if 0
    /* the logic: if r0 & r1 used in the instruction
    then we are in trouble otherwise */

    /* first check if r0 & r1 are used by this
    instruction, in which case we are in trouble */
    if ((r0iu = bitVectBitValue(ic->rUsed,R0_IDX)) &&
        (r1iu = bitVectBitValue(ic->rUsed,R1_IDX))) 
    {
        goto endOfWorld;      
    }

    r0ou = bitVectBitValue(ic->rMask,R0_IDX);
    r1ou = bitVectBitValue(ic->rMask,R1_IDX);

    /* if no usage of r0 then return it */
    if (!r0iu && !r0ou) {
        ic->rUsed = bitVectSetBit(ic->rUsed,R0_IDX);
        (*aopp)->type = AOP_R0; 
        
        return (*aopp)->aopu.aop_ptr = pic16_regWithIdx(R0_IDX);
    }

    /* if no usage of r1 then return it */
    if (!r1iu && !r1ou) {
        ic->rUsed = bitVectSetBit(ic->rUsed,R1_IDX);
        (*aopp)->type = AOP_R1;

        return (*aopp)->aopu.aop_ptr = pic16_regWithIdx(R1_IDX);
    }    

    /* now we know they both have usage */
    /* if r0 not used in this instruction */
    if (!r0iu) {
        /* push it if not already pushed */
        if (!_G.r0Pushed) {
          //pic16_emitcode ("push","%s",
          //          pic16_regWithIdx(R0_IDX)->dname);
            _G.r0Pushed++ ;
        }
        
        ic->rUsed = bitVectSetBit(ic->rUsed,R0_IDX);
        (*aopp)->type = AOP_R0;

        return (*aopp)->aopu.aop_ptr = pic16_regWithIdx(R0_IDX);
    }

    /* if r1 not used then */

    if (!r1iu) {
        /* push it if not already pushed */
        if (!_G.r1Pushed) {
          //pic16_emitcode ("push","%s",
          //          pic16_regWithIdx(R1_IDX)->dname);
            _G.r1Pushed++ ;
        }
        
        ic->rUsed = bitVectSetBit(ic->rUsed,R1_IDX);
        (*aopp)->type = AOP_R1;
        return pic16_regWithIdx(R1_IDX);
    }

endOfWorld :
    /* I said end of world but not quite end of world yet */
    /* if this is a result then we can push it on the stack*/
    if (result) {
        (*aopp)->type = AOP_STK;    
        return NULL;
    }

    /* other wise this is true end of the world */
    werror(E_INTERNAL_ERROR,__FILE__,__LINE__,
           "getFreePtr should never reach here");
    exit(0);
#endif
}

/*-----------------------------------------------------------------*/
/* newAsmop - creates a new asmOp                                  */
/*-----------------------------------------------------------------*/
static asmop *newAsmop (short type)
{
    asmop *aop;

    aop = Safe_calloc(1,sizeof(asmop));
    aop->type = type;
    return aop;
}

static void genSetDPTR(int n)
{
    if (!n)
    {
        pic16_emitcode(";", "Select standard DPTR");
        pic16_emitcode("mov", "dps, #0x00");
    }
    else
    {
        pic16_emitcode(";", "Select alternate DPTR");
        pic16_emitcode("mov", "dps, #0x01");
    }
}

/*-----------------------------------------------------------------*/
/* resolveIfx - converts an iCode ifx into a form more useful for  */
/*              generating code                                    */
/*-----------------------------------------------------------------*/
static void resolveIfx(resolvedIfx *resIfx, iCode *ifx)
{
  FENTRY2;
  
//  DEBUGpic16_emitcode("; ***","%s %d",__FUNCTION__,__LINE__);

  if(!resIfx) 
    return;


  resIfx->condition = 1;    /* assume that the ifx is true */
  resIfx->generated = 0;    /* indicate that the ifx has not been used */

  if(!ifx) {
    resIfx->lbl = newiTempLabel(NULL);  /* oops, there is no ifx. so create a label */

#if 1
    DEBUGpic16_emitcode("; ***","%s %d null ifx creating new label key =%d",
                        __FUNCTION__,__LINE__,resIfx->lbl->key);
#endif

  } else {
    if(IC_TRUE(ifx)) {
      resIfx->lbl = IC_TRUE(ifx);
    } else {
      resIfx->lbl = IC_FALSE(ifx);
      resIfx->condition = 0;
    }

#if 1
    if(IC_TRUE(ifx)) 
      DEBUGpic16_emitcode("; +++","ifx true is non-null");
    else
      DEBUGpic16_emitcode("; +++","ifx true is null");
    if(IC_FALSE(ifx)) 
      DEBUGpic16_emitcode("; +++","ifx false is non-null");
    else
      DEBUGpic16_emitcode("; +++","ifx false is null");
#endif
  }

  DEBUGpic16_emitcode("; ***","%s lbl->key=%d, (lab offset=%d)",__FUNCTION__,resIfx->lbl->key,pic16_labelOffset);

}
#if 0
/*-----------------------------------------------------------------*/
/* pointerCode - returns the code for a pointer type               */
/*-----------------------------------------------------------------*/
static int pointerCode (sym_link *etype)
{

    return PTR_TYPE(SPEC_OCLS(etype));

}
#endif

/*-----------------------------------------------------------------*/
/* aopForSym - for a true symbol                                   */
/*-----------------------------------------------------------------*/
static asmop *aopForSym (iCode *ic, operand *op, bool result)
{
    symbol *sym=OP_SYMBOL(op);
    asmop *aop;
    memmap *space= SPEC_OCLS(sym->etype);

    FENTRY2;
    
    _G.resDirect = 0;   /* clear flag that instructs the result is loaded directly from aopForSym */
    
//    sym = OP_SYMBOL(op);

    /* if already has one */
    if (sym->aop) {
            DEBUGpic16_emitcode("; ***", "already has sym %s %d", __FUNCTION__, __LINE__);
        return sym->aop;
    }

#if 0
    /* if symbol was initially placed onStack then we must re-place it
     * to direct memory, since pic16 does not have a specific stack */
    if(sym->onStack) {
        fprintf(stderr, "%s:%d symbol %s on stack\n", __FILE__, __LINE__, OP_SYMBOL(op)->name);
    }
#endif


#if 0
    if(sym->iaccess) {
      if(space->paged) {
        fprintf(stderr, "%s:%d symbol %s points to paged data\n", __FILE__, __LINE__, sym->name);

        sym->aop = aop = newAsmop (AOP_PAGED);
        aop->aopu.aop_dir = sym->rname ;
        aop->size = getSize(sym->type);
        DEBUGpic16_emitcode(";","%d sym->rname = %s, size = %d",__LINE__,sym->rname,aop->size);
        pic16_allocDirReg( IC_LEFT(ic) );
        return aop;
      }
      assert( 0 );
    }
#endif
    
#if 1
    /* assign depending on the storage class */
    /* if it is on the stack or indirectly addressable */
    /* space we need to assign either r0 or r1 to it   */    
    if (sym->onStack)   // || sym->iaccess)
    {
      pCodeOp *pcop[4];
      int i;
      
        DEBUGpic16_emitcode("; ***", "%s:%d sym->onStack:%d || sym->iaccess:%d",
                __FUNCTION__, __LINE__, sym->onStack, sym->iaccess);
        
        /* acquire a temporary register -- it is saved in function */

        sym->aop = aop = newAsmop(AOP_STA);
        aop->aopu.stk.stk = sym->stack;
        aop->size = getSize(sym->type);


        DEBUGpic16_emitcode("; +++ ", "%s:%d\top = %s", __FILE__, __LINE__, pic16_decodeOp(ic->op));
        if((ic->op == '=' /*|| ic->op == CAST*/) && IC_RESULT(ic) && AOP( IC_RESULT(ic) )
          && (AOP_TYPE(IC_RESULT(ic)) == AOP_REG)) {
//          pic16_DumpAop("aopForSym", AOP( IC_RESULT(ic) ));
          
          for(i=0;i<aop->size;i++)
            aop->aopu.stk.pop[i] = pcop[i] = pic16_popRegFromIdx( AOP(IC_RESULT(ic))->aopu.aop_reg[i]->rIdx);
            _G.resDirect = 1;   /* notify that result will be loaded directly from aopForSym */
        } else
        if(1 && ic->op == SEND) {

          /* if SEND do the send here */
          _G.resDirect = 1;
        } else {
          for(i=0;i<aop->size;i++) {
            aop->aopu.stk.pop[i] = pcop[i] = pic16_popGetTempRegCond(_G.fregsUsed, _G.sregsAlloc, 0 );
            _G.sregsAlloc = bitVectSetBit(_G.sregsAlloc, PCOR(pcop[i])->r->rIdx);
          }
        }


//        fprintf(stderr, "%s:%d\t%s\tsym size %d\n", __FILE__, __LINE__, __FUNCTION__, aop->size);

#if 1
        DEBUGpic16_emitcode(";","%d sym->rname = %s, size = %d stack = %d",__LINE__,sym->rname,aop->size, sym->stack);

        // we do not need to load the value if it is to be defined...
        if (result) return aop;

        if(_G.accInUse) {
                pic16_pushpCodeOp( pic16_popCopyReg(&pic16_pc_wreg) );
        }
        
        for(i=0;i<aop->size;i++) {

          /* initialise for stack access via frame pointer */
          // operands on stack are accessible via "FSR2 + index" with index
          // starting at 2 for arguments and growing from 0 downwards for
          // local variables (index == 0 is not assigned so we add one here)
          {
            int soffs = sym->stack;
            if (soffs <= 0) {
              assert (soffs < 0);
              soffs++;
            } // if

            if(1 && ic->op == SEND) {
              pic16_emitpcode(POC_MOVLW, pic16_popGetLit(soffs + aop->size - i - 1 /*+ _G.stack_lat*/));
              pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
                    pic16_popCopyReg( pic16_frame_plusw ),
                    pic16_popCopyReg(pic16_stack_postdec )));
            } else {
              pic16_emitpcode(POC_MOVLW, pic16_popGetLit(soffs + i /*+ _G.stack_lat*/));
              pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
                  pic16_popCopyReg( pic16_frame_plusw ), pcop[i]));
            }
          }
        }
        
        if(_G.accInUse) {
                pic16_poppCodeOp( pic16_popCopyReg(&pic16_pc_wreg) );
        }
        
        return (aop);
#endif

#if 0
        /* now assign the address of the variable to 
        the pointer register */
        if (aop->type != AOP_STK) {

            if (sym->onStack) {
                    if ( _G.accInUse )
                        pic16_emitcode("push","acc");

                    pic16_emitcode("mov","a,_bp");
                    pic16_emitcode("add","a,#0x%02x",
                             ((sym->stack < 0) ?
                              ((char)(sym->stack - _G.nRegsSaved )) :
                              ((char)sym->stack)) & 0xff);
                    pic16_emitcode("mov","%s,a",
                             aop->aopu.aop_ptr->name);

                    if ( _G.accInUse )
                        pic16_emitcode("pop","acc");
            } else
                pic16_emitcode("mov","%s,#%s",
                         aop->aopu.aop_ptr->name,
                         sym->rname);
            aop->paged = space->paged;
        } else
            aop->aopu.aop_stk = sym->stack;
        return aop;
#endif

    }
#endif

#if 0
    if (sym->onStack && options.stack10bit)
    {
        /* It's on the 10 bit stack, which is located in
         * far data space.
         */
         
      //DEBUGpic16_emitcode(";","%d",__LINE__);

        if ( _G.accInUse )
                pic16_emitcode("push","acc");

        pic16_emitcode("mov","a,_bp");
        pic16_emitcode("add","a,#0x%02x",
                 ((sym->stack < 0) ?
                   ((char)(sym->stack - _G.nRegsSaved )) :
                   ((char)sym->stack)) & 0xff);
        
        genSetDPTR(1);
        pic16_emitcode ("mov","dpx1,#0x40");
        pic16_emitcode ("mov","dph1,#0x00");
        pic16_emitcode ("mov","dpl1, a");
        genSetDPTR(0);
        
        if ( _G.accInUse )
            pic16_emitcode("pop","acc");
            
        sym->aop = aop = newAsmop(AOP_DPTR2);
        aop->size = getSize(sym->type); 
        return aop;
    }
#endif

#if 1
    /* special case for a function */
    if (IS_FUNC(sym->type)) {   
        sym->aop = aop = newAsmop(AOP_PCODE);
        //_ALLOC_ATOMIC(aop->aopu.aop_immd,strlen(sym->rname)+1);
        aop->aopu.pcop = pic16_popGetImmd(sym->rname, 0, 0);
        PCOI(aop->aopu.pcop)->_const = IN_CODESPACE(space);
        PCOI(aop->aopu.pcop)->index = 0;
        aop->size = FPTRSIZE; 
        DEBUGpic16_emitcode(";","%d size = %d, name =%s",__LINE__,aop->size,sym->rname);
        return aop;
    }
#endif



    //DEBUGpic16_emitcode(";","%d",__LINE__);
    /* if in bit space */
    if (IN_BITSPACE(space)) {
        sym->aop = aop = newAsmop (AOP_CRY);
        aop->aopu.aop_dir = sym->rname ;
        aop->size = getSize(sym->type);
        DEBUGpic16_emitcode(";","%d sym->rname = %s, size = %d",__LINE__,sym->rname,aop->size);
        return aop;
    }
    /* if it is in direct space */
    if (IN_DIRSPACE(space)) {
        sym->aop = aop = newAsmop (AOP_DIR);
        aop->aopu.aop_dir = sym->rname ;
        aop->size = getSize(sym->type);
        DEBUGpic16_emitcode(";","%d sym->rname = %s, size = %d",__LINE__,sym->rname,aop->size);
        pic16_allocDirReg( IC_LEFT(ic) );
        return aop;
    }


    if (IN_FARSPACE(space) && !IN_CODESPACE(space)) {
        sym->aop = aop = newAsmop (AOP_DIR);
        aop->aopu.aop_dir = sym->rname ;
        aop->size = getSize(sym->type);
        DEBUGpic16_emitcode(";","%d sym->rname = %s, size = %d",__LINE__,sym->rname,aop->size);
        pic16_allocDirReg( IC_LEFT(ic) );
        return aop;
    }


    /* only remaining is far space */
    sym->aop = aop = newAsmop(AOP_PCODE);

/* change the next if to 1 to revert to good old immediate code */
        if(IN_CODESPACE(space)) {
                aop->aopu.pcop = pic16_popGetImmd(sym->rname, 0, 0);
                PCOI(aop->aopu.pcop)->_const = IN_CODESPACE(space);
                PCOI(aop->aopu.pcop)->index = 0;
        } else {
                /* try to allocate via direct register */
                aop->aopu.pcop = pic16_popRegFromString(sym->rname, getSize(sym->type), sym->offset, op); // Patch 8
//              aop->size = getSize( sym->type );
        }

        DEBUGpic16_emitcode(";","%d: rname %s, val %d, const = %d",
                __LINE__,sym->rname, 0, PCOI(aop->aopu.pcop)->_const);

#if 0
        if(!pic16_allocDirReg (IC_LEFT(ic)))
                return NULL;
#endif

        if(IN_DIRSPACE( space ))
                aop->size = PTRSIZE;
        else if(IN_CODESPACE( space ) || IN_FARSPACE( space ))
                aop->size = FPTRSIZE;
        else if(IC_LEFT(ic) && AOP(IC_LEFT(ic))) aop->size = AOP_SIZE( IC_LEFT(ic) );
        else if(IC_RIGHT(ic) && AOP(IC_RIGHT(ic))) aop->size = AOP_SIZE( IC_RIGHT(ic) );
        else if(sym->onStack) {
                aop->size = PTRSIZE;
        } else {
          if(SPEC_SCLS(sym->etype) == S_PDATA) {
            fprintf(stderr, "%s: %d symbol in PDATA space\n", __FILE__, __LINE__);
            aop->size = FPTRSIZE;
          } else
                assert( 0 );
        }

    DEBUGpic16_emitcode(";","%d size = %d",__LINE__,aop->size);

    /* if it is in code space */
    if (IN_CODESPACE(space))
        aop->code = 1;

    return aop;     
}

/*-----------------------------------------------------------------*/
/* aopForRemat - rematerialzes an object                           */
/*-----------------------------------------------------------------*/
static asmop *aopForRemat (operand *op) // x symbol *sym)
{
  symbol *sym = OP_SYMBOL(op);
  operand *refop;
  iCode *ic = NULL, *oldic;
  asmop *aop = newAsmop(AOP_PCODE);
  int val = 0;
  int offset = 0;
  int viaimmd=0;

    FENTRY2;
    
        ic = sym->rematiCode;

        if(IS_OP_POINTER(op)) {
                DEBUGpic16_emitcode(";","%s %d IS_OP_POINTER",__FUNCTION__,__LINE__);
        }

        for (;;) {
                oldic = ic;

//              pic16_emitpcomment("ic: %s\n", printILine(ic));
        
                if (ic->op == '+') {
                        val += (int) operandLitValue(IC_RIGHT(ic));
                } else if (ic->op == '-') {
                        val -= (int) operandLitValue(IC_RIGHT(ic));
                } else
                        break;
                
                ic = OP_SYMBOL(IC_LEFT(ic))->rematiCode;
        }

        offset = OP_SYMBOL(IC_LEFT(ic))->offset;
        refop = IC_LEFT(ic);

        if(!op->isaddr)viaimmd++; else viaimmd=0;
                
/* set the following if to 1 to revert to good old immediate code */
        if(IN_CODESPACE( SPEC_OCLS( OP_SYM_ETYPE(refop)))
                || viaimmd) {

                DEBUGpic16_emitcode(";", "%s:%d immediate, size: %d", __FILE__, __LINE__, getSize( sym->type ));

                aop->aopu.pcop = pic16_popGetImmd(OP_SYMBOL(IC_LEFT(ic))->rname, 0, val);

#if 0
                PCOI(aop->aopu.pcop)->_const = IS_PTR_CONST(operandType(op));
#else
                PCOI(aop->aopu.pcop)->_const = IS_CODEPTR(operandType(op));
#endif

                PCOI(aop->aopu.pcop)->index = val;
                
                aop->size = getSize( sym->type );
        } else {
                DEBUGpic16_emitcode(";", "%s:%d dir size: %d", __FILE__, __LINE__,  getSize( OP_SYMBOL( IC_LEFT(ic))->type));

                aop->aopu.pcop = pic16_popRegFromString(OP_SYMBOL(IC_LEFT(ic))->rname,
                                getSize( OP_SYMBOL( IC_LEFT(ic))->type), val, op);

                aop->size = getSize( OP_SYMBOL( IC_LEFT(ic))->type );
        }


        DEBUGpic16_emitcode(";","%d: rname %s, val %d, const = %d",
                __LINE__,OP_SYMBOL(IC_LEFT(ic))->rname,
#if 0
                val, IS_PTR_CONST(operandType(op)));
#else
                val, IS_CODEPTR(operandType(op)));
#endif

//      DEBUGpic16_emitcode(";","aop type  %s",pic16_AopType(AOP_TYPE(IC_LEFT(ic))));

        pic16_allocDirReg (IC_LEFT(ic));

        if(IN_CODESPACE( SPEC_OCLS( OP_SYM_ETYPE(op)) ))
                aop->code = 1;

  return aop;        
}

#if 0
static int aopIdx (asmop *aop, int offset)
{
  if(!aop)
    return -1;

  if(aop->type !=  AOP_REG)
    return -2;
        
  return aop->aopu.aop_reg[offset]->rIdx;

}
#endif

/*-----------------------------------------------------------------*/
/* regsInCommon - two operands have some registers in common       */
/*-----------------------------------------------------------------*/
static bool regsInCommon (operand *op1, operand *op2)
{
    symbol *sym1, *sym2;
    int i;

    /* if they have registers in common */
    if (!IS_SYMOP(op1) || !IS_SYMOP(op2))
        return FALSE ;

    sym1 = OP_SYMBOL(op1);
    sym2 = OP_SYMBOL(op2);

    if (sym1->nRegs == 0 || sym2->nRegs == 0)
        return FALSE ;

    for (i = 0 ; i < sym1->nRegs ; i++) {
        int j;
        if (!sym1->regs[i])
            continue ;

        for (j = 0 ; j < sym2->nRegs ;j++ ) {
            if (!sym2->regs[j])
                continue ;

            if (sym2->regs[j] == sym1->regs[i])
                return TRUE ;
        }
    }

    return FALSE ;
}

/*-----------------------------------------------------------------*/
/* operandsEqu - equivalent                                        */
/*-----------------------------------------------------------------*/
static bool operandsEqu ( operand *op1, operand *op2)
{
    symbol *sym1, *sym2;

    /* if they not symbols */
    if (!IS_SYMOP(op1) || !IS_SYMOP(op2))
        return FALSE;

    sym1 = OP_SYMBOL(op1);
    sym2 = OP_SYMBOL(op2);

    /* if both are itemps & one is spilt
       and the other is not then false */
    if (IS_ITEMP(op1) && IS_ITEMP(op2) &&
        sym1->isspilt != sym2->isspilt )
        return FALSE ;

    /* if they are the same */
    if (sym1 == sym2)
        return TRUE ;

    if (sym1->rname[0] && sym2->rname[0]
        && strcmp (sym1->rname, sym2->rname) == 0)
        return TRUE;


    /* if left is a tmp & right is not */
    if (IS_ITEMP(op1)  && 
        !IS_ITEMP(op2) &&
        sym1->isspilt  &&
        (sym1->usl.spillLoc == sym2))
        return TRUE;

    if (IS_ITEMP(op2)  && 
        !IS_ITEMP(op1) &&
        sym2->isspilt  &&
        sym1->level > 0 &&
        (sym2->usl.spillLoc == sym1))
        return TRUE ;

    return FALSE ;
}

/*-----------------------------------------------------------------*/
/* pic16_sameRegs - two asmops have the same registers                   */
/*-----------------------------------------------------------------*/
bool pic16_sameRegs (asmop *aop1, asmop *aop2 )
{
    int i;

    if (aop1 == aop2)
        return TRUE ;

    DEBUGpic16_emitcode(";***", "%s aop1->type = %s\taop2->type = %s\n", __FUNCTION__,
                pic16_AopType(aop1->type), pic16_AopType(aop2->type));

    if(aop1->type == AOP_ACC && aop2->type == AOP_ACC)return TRUE;

    if (aop1->type != AOP_REG ||
        aop2->type != AOP_REG )
        return FALSE ;

    /* This is a bit too restrictive if one is a subset of the other...
    if (aop1->size != aop2->size )
        return FALSE ;
    */

    for (i = 0 ; i < min(aop1->size, aop2->size) ; i++ ) {
//        if(aop1->aopu.aop_reg[i]->type != aop2->aopu.aop_reg[i]->type)return FALSE;

//        if(aop1->aopu.aop_reg[i]->type == AOP_REG)
        if (strcmp(aop1->aopu.aop_reg[i]->name, aop2->aopu.aop_reg[i]->name ))
            return FALSE ;
    }

    return TRUE ;
}

bool pic16_sameRegsOfs(asmop *aop1, asmop *aop2, int offset)
{
    DEBUGpic16_emitcode(";***", "%s aop1->type = %s\taop2->type = %s (offset = %d)\n", __FUNCTION__,
                pic16_AopType(aop1->type), pic16_AopType(aop2->type), offset);

    if(aop1 == aop2)return TRUE;
    if(aop1->type != AOP_REG || aop2->type != AOP_REG)return FALSE;
      
      if(strcmp(aop1->aopu.aop_reg[offset]->name, aop2->aopu.aop_reg[offset]->name))return FALSE;
    
  return TRUE;
}


/*-----------------------------------------------------------------*/
/* pic16_aopOp - allocates an asmop for an operand  :                    */
/*-----------------------------------------------------------------*/
void pic16_aopOp (operand *op, iCode *ic, bool result)
{
    asmop *aop;
    symbol *sym;
    int i;

    if (!op)
        return ;

    DEBUGpic16_emitcode(";","%s %d",__FUNCTION__, __LINE__);

    /* if this a literal */
    if (IS_OP_LITERAL(op)) {
        op->aop = aop = newAsmop(AOP_LIT);
        aop->aopu.aop_lit = op->operand.valOperand;
        aop->size = getSize(operandType(op));
        return;
    }

    {
      sym_link *type = operandType(op);
#if 0
      if(IS_PTR_CONST(type))
#else
      if(IS_CODEPTR(type))
#endif
        DEBUGpic16_emitcode(";","%d aop type is const pointer",__LINE__);
    }

    /* if already has a asmop then continue */
    if (op->aop)
        return ;

    /* if the underlying symbol has a aop */
    if (IS_SYMOP(op) && OP_SYMBOL(op)->aop) {
      DEBUGpic16_emitcode(";","%d has symbol",__LINE__);
        op->aop = OP_SYMBOL(op)->aop;
        return;
    }

    /* if this is a true symbol */
    if (IS_TRUE_SYMOP(op)) {    
        DEBUGpic16_emitcode(";","%d - true symop",__LINE__);
      op->aop = aopForSym(ic, op, result);
      return ;
    }

    /* this is a temporary : this has
    only four choices :
    a) register
    b) spillocation
    c) rematerialize 
    d) conditional   
    e) can be a return use only */

    sym = OP_SYMBOL(op);

    DEBUGpic16_emitcode("; ***", "%d: symbol name = %s, regType = %d", __LINE__, sym->name, sym->regType);
    /* if the type is a conditional */
    if (sym->regType == REG_CND) {
        aop = op->aop = sym->aop = newAsmop(AOP_CRY);
        aop->size = 0;
        return;
    }

    /* if it is spilt then two situations
    a) is rematerialize 
    b) has a spill location */
    if (sym->isspilt || sym->nRegs == 0) {

//      debugf3("symbol %s\tisspilt: %d\tnRegs: %d\n", sym->rname, sym->isspilt, sym->nRegs);
      DEBUGpic16_emitcode(";","%d",__LINE__);
        /* rematerialize it NOW */
        if (sym->remat) {

            sym->aop = op->aop = aop = aopForRemat (op);
//            aop->size = getSize(sym->type);
//          DEBUGpic16_emitcode(";"," %d: size %d, %s\n",__LINE__,aop->size,aop->aopu.aop_immd);
            return;
        }

#if 1
        if (sym->accuse) {
            int i;
            aop = op->aop = sym->aop = newAsmop(AOP_ACC);
            aop->size = getSize(sym->type);
            for ( i = 0 ; i < 1 ; i++ ) {
                aop->aopu.aop_str[i] = accUse[i];
//                aop->aopu.pcop = pic16_popRegFromString("WREG", aop->size, sym->usl.spillLoc->offset);
            }
            fprintf(stderr, "%s:%d allocating AOP_ACC for sym= %s\n", __FILE__, __LINE__, sym->name);
            DEBUGpic16_emitcode(";","%d size=%d",__LINE__,aop->size);
            return;  
        }
#endif

#if 1
        if (sym->ruonly) {
          /*
          sym->aop = op->aop = aop = newAsmop(AOP_PCODE);
          aop->aopu.pcop = pic16_popGetImmd(sym->usl.spillLoc->rname,0,sym->usl.spillLoc->offset);
          //pic16_allocDirReg (IC_LEFT(ic));
          aop->size = getSize(sym->type);
          */

          unsigned i;

          aop = op->aop = sym->aop = newAsmop(AOP_REG);
          aop->size = getSize(sym->type);
          for ( i = 0 ; i < pic16_fReturnSizePic ; i++ )
            aop->aopu.aop_reg[i] = PCOR(pic16_popRegFromIdx( fReturnIdx[i] ))->r;

          DEBUGpic16_emitcode(";","%d",__LINE__);
          return;
        }
#endif
        /* else spill location  */
        if (sym->usl.spillLoc && getSize(sym->type) != getSize(sym->usl.spillLoc->type)) {
            /* force a new aop if sizes differ */
            sym->usl.spillLoc->aop = NULL;
        }

#if 0
        DEBUGpic16_emitcode(";","%s %d %s sym->rname = %s, offset %d",
                            __FUNCTION__,__LINE__,
                            sym->usl.spillLoc->rname,
                            sym->rname, sym->usl.spillLoc->offset);
#endif

        sym->aop = op->aop = aop = newAsmop(AOP_PCODE);
        //aop->aopu.pcop = pic16_popGetImmd(sym->usl.spillLoc->rname,0,sym->usl.spillLoc->offset);
        if (sym->usl.spillLoc && sym->usl.spillLoc->rname) {
          aop->aopu.pcop = pic16_popRegFromString(sym->usl.spillLoc->rname, 
                                                  getSize(sym->type), 
                                                  sym->usl.spillLoc->offset, op);
        } else {
          fprintf (stderr, "%s:%d called for a spillLocation -- assigning WREG instead --- CHECK!\n", __FUNCTION__, __LINE__);
          pic16_emitpcomment (";!!! %s:%d called for a spillLocation -- assigning WREG instead --- CHECK", __FUNCTION__, __LINE__);
          assert (getSize(sym->type) <= 1);
          aop->aopu.pcop = pic16_popCopyReg (&pic16_pc_wreg);
        }
        aop->size = getSize(sym->type);

        return;
    }

    {
      sym_link *type = operandType(op);
#if 0
      if(IS_PTR_CONST(type)) 
#else
      if(IS_CODEPTR(type)) 
#endif
        DEBUGpic16_emitcode(";","%d aop type is const pointer",__LINE__);
    }

    /* must be in a register */
    DEBUGpic16_emitcode(";","%d register type nRegs=%d",__LINE__,sym->nRegs);
    sym->aop = op->aop = aop = newAsmop(AOP_REG);
    aop->size = sym->nRegs;
    for ( i = 0 ; i < sym->nRegs ;i++)
        aop->aopu.aop_reg[i] = sym->regs[i];
}

/*-----------------------------------------------------------------*/
/* pic16_freeAsmop - free up the asmop given to an operand               */
/*----------------------------------------------------------------*/
void pic16_freeAsmop (operand *op, asmop *aaop, iCode *ic, bool pop)
{   
    asmop *aop ;

    if (!op)
        aop = aaop;
    else 
        aop = op->aop;

    if (!aop)
        return ;

    if (aop->freed)
        goto dealloc; 

    aop->freed = 1;

    /* depending on the asmop type only three cases need work AOP_RO
       , AOP_R1 && AOP_STK */
#if 1
    switch (aop->type) {
        case AOP_FSR0 :
            if (_G.fsr0Pushed ) {
                if (pop) {
                    pic16_poppCodeOp( pic16_popCopyReg(&pic16_pc_fsr0h) );
                    pic16_poppCodeOp( pic16_popCopyReg(&pic16_pc_fsr0l) );
//                    pic16_emitcode ("pop","ar0");
                    _G.fsr0Pushed--;
                }
            }
            bitVectUnSetBit(ic->rUsed,IDX_FSR0);
            break;

        case AOP_FSR2 :
            bitVectUnSetBit(ic->rUsed,IDX_FSR2);
            break;

        case AOP_R0 :
            if (_G.r0Pushed ) {
                if (pop) {
                    pic16_emitcode ("pop","ar0");     
                    _G.r0Pushed--;
                }
            }
            bitVectUnSetBit(ic->rUsed,R0_IDX);
            break;

        case AOP_R1 :
            if (_G.r1Pushed ) {
                if (pop) {
                    pic16_emitcode ("pop","ar1");
                    _G.r1Pushed--;
                }
            }
            bitVectUnSetBit(ic->rUsed,R1_IDX);          
            break;

        case AOP_STA:
          {
            int i;

              /* we must store the result on stack */
              if((op == IC_RESULT(ic)) && RESULTONSTA(ic)) {
                // operands on stack are accessible via "FSR2 + index" with index
                // starting at 2 for arguments and growing from 0 downwards for
                // local variables (index == 0 is not assigned so we add one here)
                int soffs = OP_SYMBOL(IC_RESULT(ic))->stack;
                if (soffs <= 0) {
                  assert (soffs < 0);
                  soffs++;
                } // if
                if(_G.accInUse)pic16_pushpCodeOp( pic16_popCopyReg(&pic16_pc_wreg) );
                for(i=0;i<aop->size;i++) {
                  /* initialise for stack access via frame pointer */
                  pic16_emitpcode(POC_MOVLW, pic16_popGetLit(soffs + i /*+ _G.stack_lat*/));
                  pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
                        aop->aopu.stk.pop[i], pic16_popCopyReg(pic16_frame_plusw)));
                }
        
                if(_G.accInUse)pic16_poppCodeOp( pic16_popCopyReg(&pic16_pc_wreg) );
              }

              if(!_G.resDirect) {
                for(i=0;i<aop->size;i++) {
                  PCOR(aop->aopu.stk.pop[i] )->r->isFree = 1;

                  if(bitVectBitValue(_G.sregsAlloc, PCOR(aop->aopu.stk.pop[i])->r->rIdx))
                      bitVectUnSetBit(_G.sregsAlloc, PCOR(aop->aopu.stk.pop[i])->r->rIdx);
                }
                  
              }
              _G.resDirect = 0;
          }
          break;
#if 0
        case AOP_STK :
        {
            int sz = aop->size;    
            int stk = aop->aopu.aop_stk + aop->size;
            bitVectUnSetBit(ic->rUsed,R0_IDX);
            bitVectUnSetBit(ic->rUsed,R1_IDX);          

            getFreePtr(ic,&aop,FALSE);
            
            if (options.stack10bit)
            {
                /* I'm not sure what to do here yet... */
                /* #STUB */
                fprintf(stderr, 
                        "*** Warning: probably generating bad code for "
                        "10 bit stack mode.\n");
            }
            
            if (stk) {
                pic16_emitcode ("mov","a,_bp");
                pic16_emitcode ("add","a,#0x%02x",((char)stk) & 0xff);
                pic16_emitcode ("mov","%s,a",aop->aopu.aop_ptr->name);
            } else {
                pic16_emitcode ("mov","%s,_bp",aop->aopu.aop_ptr->name);
            }

            while (sz--) {
                pic16_emitcode("pop","acc");
                pic16_emitcode("mov","@%s,a",aop->aopu.aop_ptr->name);
                if (!sz) break;
                pic16_emitcode("dec","%s",aop->aopu.aop_ptr->name);
            }
            op->aop = aop;
            pic16_freeAsmop(op,NULL,ic,TRUE);
            if (_G.r0Pushed) {
                pic16_emitcode("pop","ar0");
                _G.r0Pushed--;
            }

            if (_G.r1Pushed) {
                pic16_emitcode("pop","ar1");
                _G.r1Pushed--;
            }       
        }
#endif

    }
#endif

dealloc:
    /* all other cases just dealloc */
    if (op ) {
        op->aop = NULL;
        if (IS_SYMOP(op)) {
            OP_SYMBOL(op)->aop = NULL;    
            /* if the symbol has a spill */
            if (SPIL_LOC(op))
                SPIL_LOC(op)->aop = NULL;
        }
    }
}

/*-----------------------------------------------------------------*/
/* pic16_aopGet - for fetching value of the aop                          */
/*-----------------------------------------------------------------*/
char *pic16_aopGet (asmop *aop, int offset, bool bit16, bool dname)
{
    char *s = buffer ;
    char *rs;

    //DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    /* offset is greater than size then zero */
    if (offset > (aop->size - 1) &&
        aop->type != AOP_LIT)
        return zero;

    /* depending on type */
    switch (aop->type) {

    case AOP_FSR0:
    case AOP_FSR2:
      sprintf(s, "%s", aop->aopu.aop_ptr->name);
      rs = Safe_calloc(1, strlen(s)+1);
      strcpy(rs, s);
      return (rs);
      
#if 0
      /* if we need to increment it */
      while (offset > aop->coff)
        {
          emitcode ("inc", "%s", aop->aopu.aop_ptr->name);
          aop->coff++;
        }

      while (offset < aop->coff)
        {
          emitcode ("dec", "%s", aop->aopu.aop_ptr->name);
          aop->coff--;
        }
      aop->coff = offset;
      if (aop->paged)
        {
          emitcode ("movx", "a,@%s", aop->aopu.aop_ptr->name);
          return (dname ? "acc" : "a");
        }
      sprintf (s, "@%s", aop->aopu.aop_ptr->name);
      rs = Safe_calloc (1, strlen (s) + 1);
      strcpy (rs, s);
      return rs;
#endif

        
    case AOP_IMMD:
        if (bit16) 
            sprintf (s,"%s",aop->aopu.aop_immd);
        else
            if (offset) 
                sprintf(s,"(%s >> %d)",
                        aop->aopu.aop_immd,
                        offset*8);
            else
                sprintf(s,"%s",
                        aop->aopu.aop_immd);
        DEBUGpic16_emitcode(";","%d immd %s",__LINE__,s);
        rs = Safe_calloc(1,strlen(s)+1);
        strcpy(rs,s);   
        return rs;
        
    case AOP_DIR:
      if (offset) {
        sprintf(s,"(%s + %d)",
                aop->aopu.aop_dir,
                offset);
        DEBUGpic16_emitcode(";","oops AOP_DIR did this %s\n",s);
      } else
            sprintf(s,"%s",aop->aopu.aop_dir);
        rs = Safe_calloc(1,strlen(s)+1);
        strcpy(rs,s);   
        return rs;
        
    case AOP_REG:
      //if (dname) 
      //    return aop->aopu.aop_reg[offset]->dname;
      //else
            return aop->aopu.aop_reg[offset]->name;
        
    case AOP_CRY:
      //pic16_emitcode(";","%d",__LINE__);
      return aop->aopu.aop_dir;
        
    case AOP_ACC:
        DEBUGpic16_emitcode(";Warning -pic port ignoring get(AOP_ACC)","%d\toffset: %d",__LINE__, offset);
//        fprintf(stderr, "%s:%d Warning -pic port ignoring get(AOP_ACC)\n",__FILE__, __LINE__);
//        assert( 0 );
//      return aop->aopu.aop_str[offset];       //->"AOP_accumulator_bug";
        rs = Safe_strdup("WREG");
        return (rs);

    case AOP_LIT:
        sprintf(s,"0X%02x", pic16aopLiteral (aop->aopu.aop_lit,offset));
        rs = Safe_calloc(1,strlen(s)+1);
        strcpy(rs,s);   
        return rs;
        
    case AOP_STR:
        aop->coff = offset ;

//      if (strcmp(aop->aopu.aop_str[offset],"a") == 0 &&
//          dname)
//          return "acc";
        if(!strcmp(aop->aopu.aop_str[offset], "WREG")) {
          aop->type = AOP_ACC;
          return Safe_strdup("WREG");
        }
        DEBUGpic16_emitcode(";","%d - %s",__LINE__, aop->aopu.aop_str[offset]);
        
        return aop->aopu.aop_str[offset];
        
    case AOP_PCODE:
      {
        pCodeOp *pcop = aop->aopu.pcop;
        DEBUGpic16_emitcode(";","%d: pic16_aopGet AOP_PCODE type %s",__LINE__,pic16_pCodeOpType(pcop));
        if(pcop->name) {
          DEBUGpic16_emitcode(";","%s offset %d",pcop->name,PCOI(pcop)->offset);
          //sprintf(s,"(%s+0x%02x)", pcop->name,PCOI(aop->aopu.pcop)->offset);
          if (offset) {
            sprintf(s,"(%s + %d)", pic16_get_op (pcop, NULL, 0), offset);
          } else {
            sprintf(s,"%s", pic16_get_op (pcop, NULL, 0));
          }
        } else
          sprintf(s,"0x%02x", PCOI(aop->aopu.pcop)->offset);

      }
      rs = Safe_calloc(1,strlen(s)+1);
      strcpy(rs,s);   
      return rs;

#if 0
    case AOP_PAGED:
      DEBUGpic16_emitcode(";","oops AOP_PAGED did this %s\n",s);
      if (offset) {
        sprintf(s,"(%s + %d)",
                aop->aopu.aop_dir,
                offset);
      } else
            sprintf(s,"%s",aop->aopu.aop_dir);
      DEBUGpic16_emitcode(";","oops AOP_PAGED did this %s\n",s);
      rs = Safe_calloc(1,strlen(s)+1);
      strcpy(rs,s);   
      return rs;
#endif

    case AOP_STA:
        rs = Safe_strdup(PCOR(aop->aopu.stk.pop[offset])->r->name);
        return (rs);
        
    case AOP_STK:
//        pCodeOp *pcop = aop->aop
        break;

    }

    fprintf(stderr, "%s:%d unsupported aop->type: %s\n", __FILE__, __LINE__, pic16_AopType(aop->type));
    werror(E_INTERNAL_ERROR,__FILE__,__LINE__,
           "aopget got unsupported aop->type");
    exit(0);
}



/* lock has the following meaning: When allocating temporary registers
 * for stack variables storage, the value of the temporary register is
 * saved on stack. Its value is restored at the end. This procedure is
 * done via calls to pic16_aopOp and pic16_freeAsmop functions. There is
 * a possibility that before a call to pic16_aopOp, a temporary register
 * is allocated for a while and it is freed after some time, this will
 * mess the stack and values will not be restored properly. So use lock=1
 * to allocate temporary registers used internally by the programmer, and
 * lock=0 to allocate registers for stack use. lock=1 will emit a warning
 * to inform the compiler developer about a possible bug. This is an internal
 * feature for developing the compiler -- VR */
 
int _TempReg_lock = 0;
/*-----------------------------------------------------------------*/
/* pic16_popGetTempReg - create a new temporary pCodeOp                  */
/*-----------------------------------------------------------------*/
pCodeOp *pic16_popGetTempReg(int lock)
{
  pCodeOp *pcop;
  symbol *cfunc;

//    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    if(_TempReg_lock) {
//      werror(W_POSSBUG2, __FILE__, __LINE__);
    }
    
    _TempReg_lock += lock;
    
    cfunc = currFunc;
    currFunc = NULL;

    pcop = pic16_newpCodeOp(NULL, PO_GPR_TEMP);
    if(pcop && pcop->type == PO_GPR_TEMP && PCOR(pcop)->r) {
      PCOR(pcop)->r->wasUsed=1;
      PCOR(pcop)->r->isFree=0;

      /* push value on stack */
      pic16_pushpCodeOp( pic16_pCodeOpCopy(pcop) );
    }

    currFunc = cfunc;

  return pcop;
}

/*-----------------------------------------------------------------*/
/* pic16_popGetTempRegCond - create a new temporary pCodeOp which  */
/*                           is not part of f, but don't save if   */
/*                           inside v                              */
/*-----------------------------------------------------------------*/
pCodeOp *pic16_popGetTempRegCond(bitVect *f, bitVect *v, int lock)
{
  pCodeOp *pcop=NULL;
  symbol *cfunc;
  int i;

//    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    if(_TempReg_lock) {
//      werror(W_POSSBUG2, __FILE__, __LINE__);
    }

    _TempReg_lock += lock;

    cfunc = currFunc;
    currFunc = NULL;

    i = bitVectFirstBit(f);
    while(i < 128) {

      /* bypass registers that are used by function */
      if(!bitVectBitValue(f, i)) {
      
        /* bypass registers that are already allocated for stack access */
        if(!bitVectBitValue(v, i))  {
        
//          debugf("getting register rIdx = %d\n", i);
          /* ok, get the operand */
          pcop = pic16_newpCodeOpReg( i );
    
          /* should never by NULL */
          assert( pcop != NULL );

          
          /* sanity check */
          if(pcop && pcop->type == PO_GPR_TEMP && PCOR(pcop)->r) {
            int found=0;
            
              PCOR(pcop)->r->wasUsed=1;
              PCOR(pcop)->r->isFree=0;


              {
                regs *sr;
              
                  for(sr=setFirstItem(_G.sregsAllocSet);sr;sr=setNextItem(_G.sregsAllocSet)) {

                    if(sr->rIdx == PCOR(pcop)->r->rIdx) {
                      /* already used in previous steps, break */
                      found=1;          
                      break;
                    }
                  }
              }

              /* caller takes care of the following */
//              bitVectSetBit(v, i);

              if(!found) {
                /* push value on stack */
                pic16_pushpCodeOp( pic16_pCodeOpCopy(pcop) );
                addSet(&_G.sregsAllocSet, PCOR(pcop)->r);
              }
          
            break;
          }
        }
      }
      i++;
    }

    currFunc = cfunc;

  return pcop;
}


/*-----------------------------------------------------------------*/
/* pic16_popReleaseTempReg - create a new temporary pCodeOp                  */
/*-----------------------------------------------------------------*/
void pic16_popReleaseTempReg(pCodeOp *pcop, int lock)
{
  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

  _TempReg_lock -= lock;

  if(pcop && pcop->type == PO_GPR_TEMP && PCOR(pcop)->r) {
    PCOR(pcop)->r->isFree = 1;

    pic16_poppCodeOp( pic16_pCodeOpCopy(pcop) );
  }
}
/*-----------------------------------------------------------------*/
/* pic16_popGetLabel - create a new pCodeOp of type PO_LABEL             */
/*-----------------------------------------------------------------*/
pCodeOp *pic16_popGetLabel(unsigned int key)
{

  DEBUGpic16_emitcode ("; ***","%s  key=%d, label offset %d",__FUNCTION__,key, pic16_labelOffset);

  if(key>max_key)
    max_key = key;

  return pic16_newpCodeOpLabel(NULL,key+100+pic16_labelOffset);
}

/*-----------------------------------------------------------------*/
/* pic16_popCopyReg - copy a pcode operator                              */
/*-----------------------------------------------------------------*/
pCodeOp *pic16_popCopyReg(pCodeOpReg *pc)
{
  pCodeOpReg *pcor;

  pcor = Safe_calloc(1,sizeof(pCodeOpReg) );
  memcpy (pcor, pc, sizeof (pCodeOpReg));
  pcor->r->wasUsed = 1;
  
  //pcor->pcop.type = pc->pcop.type;
  if(pc->pcop.name) {
    if(!(pcor->pcop.name = Safe_strdup(pc->pcop.name)))
      fprintf(stderr,"oops %s %d",__FILE__,__LINE__);
  } else
    pcor->pcop.name = NULL;

  //pcor->r = pc->r;
  //pcor->rIdx = pc->rIdx;
  //pcor->r->wasUsed=1;
  //pcor->instance = pc->instance;

//  DEBUGpic16_emitcode ("; ***","%s  , copying %s, rIdx=%d",__FUNCTION__,pc->pcop.name,pc->rIdx);

  return PCOP(pcor);
}

/*-----------------------------------------------------------------*/
/* pic16_popGetLit - asm operator to pcode operator conversion     */
/*-----------------------------------------------------------------*/
pCodeOp *pic16_popGetLit(int lit)
{
  return pic16_newpCodeOpLit(lit);
}

/*-----------------------------------------------------------------*/
/* pic16_popGetLit2 - asm operator to pcode operator conversion    */
/*-----------------------------------------------------------------*/
pCodeOp *pic16_popGetLit2(int lit, pCodeOp *arg2)
{
  return pic16_newpCodeOpLit2(lit, arg2);
}


/*-----------------------------------------------------------------*/
/* pic16_popGetImmd - asm operator to pcode immediate conversion   */
/*-----------------------------------------------------------------*/
pCodeOp *pic16_popGetImmd(char *name, unsigned int offset, int index)
{
  return pic16_newpCodeOpImmd(name, offset,index, 0);
}


/*-----------------------------------------------------------------*/
/* pic16_popGet - asm operator to pcode operator conversion              */
/*-----------------------------------------------------------------*/
pCodeOp *pic16_popGetWithString(char *str)
{
  pCodeOp *pcop;


  if(!str) {
    fprintf(stderr,"NULL string %s %d\n",__FILE__,__LINE__);
    exit (1);
  }

  pcop = pic16_newpCodeOp(str,PO_STR);

  return pcop;
}

/*-----------------------------------------------------------------*/
/* pic16_popRegFromString -                                        */
/*-----------------------------------------------------------------*/
static pCodeOp *pic16_popRegFromString(char *str, int size, int offset, operand *op)
{

  pCodeOp *pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
  pcop->type = PO_DIR;

  DEBUGpic16_emitcode(";","%d %s %s %d/%d",__LINE__, __FUNCTION__, str, size, offset); // patch 14
  // fprintf(stderr, "%s:%d: register name = %s pos = %d/%d\n", __FUNCTION__, __LINE__, str, offset, size);

  if(!str)
    str = "BAD_STRING";

  pcop->name = Safe_calloc(1,strlen(str)+1);
  strcpy(pcop->name,str);

  //pcop->name = Safe_strdup( ( (str) ? str : "BAD STRING"));

  PCOR(pcop)->r = pic16_dirregWithName(pcop->name);

  /* make sure that register doesn't exist,
   * and operand isn't NULL
   * and symbol isn't in codespace (codespace symbols are handled elsewhere) */
  if((PCOR(pcop)->r == NULL) 
    && (op)
    && !IN_CODESPACE(SPEC_OCLS(OP_SYM_ETYPE(op)))) {
//      fprintf(stderr, "%s:%d - couldn't find %s in allocated regsters, size= %d ofs= %d\n",
//              __FUNCTION__, __LINE__, str, size, offset);

    PCOR(pcop)->r = pic16_allocRegByName (pcop->name,size, op);
    fprintf(stderr, "%s:%d: WARNING: need to allocate new register by name -> %s\n", __FILE__, __LINE__, str);

  }
  PCOR(pcop)->instance = offset;

  return pcop;
}

static pCodeOp *pic16_popRegFromIdx(int rIdx)
{
  pCodeOp *pcop;

//      DEBUGpic16_emitcode ("; ***","%s,%d\trIdx=0x%x", __FUNCTION__,__LINE__,rIdx);

        pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
        PCOR(pcop)->rIdx = rIdx;
        PCOR(pcop)->r = pic16_regWithIdx(rIdx);

        PCOR(pcop)->r->isFree = 0;
        PCOR(pcop)->r->wasUsed = 1;

        pcop->type = PCOR(pcop)->r->pc_type;

  return pcop;
}

/*---------------------------------------------------------------------------------*/
/* pic16_popGet2 - a variant of pic16_popGet to handle two memory operand commands */
/*                 VR 030601                                                       */
/*---------------------------------------------------------------------------------*/
pCodeOp *pic16_popGet2(asmop *aop_src, asmop *aop_dst, int offset)
{
  pCodeOpReg2 *pcop2;
  pCodeOp *temp;
  
        pcop2 = (pCodeOpReg2 *)pic16_popGet(aop_src, offset);

        /* comment the following check, so errors to throw up */
//      if(!pcop2)return NULL;

        temp = pic16_popGet(aop_dst, offset);
        pcop2->pcop2 = temp;
        
  return PCOP(pcop2);
}



/*--------------------------------------------------------------------------------.-*/
/* pic16_popGet2p - a variant of pic16_popGet to handle two memory operand commands */
/*                  VR 030601 , adapted by Hans Dorn                                */
/*--------------------------------------------------------------------------------.-*/
pCodeOp *pic16_popGet2p(pCodeOp *src, pCodeOp *dst)
{
  pCodeOpReg2 *pcop2;
 
        pcop2 = (pCodeOpReg2 *)src;
        pcop2->pcop2 = dst;
        
        return PCOP(pcop2);
}



/*---------------------------------------------------------------------------------*/
/* pic16_popCombine2 - combine two pCodeOpReg variables into one for use with      */
/*                     movff instruction                                           */
/*---------------------------------------------------------------------------------*/
pCodeOp *pic16_popCombine2(pCodeOpReg *src, pCodeOpReg *dst, int noalloc)
{
  pCodeOpReg2 *pcop2;

        if(!noalloc) {
                pcop2 = (pCodeOpReg2 *)pic16_popCopyReg(src);
                pcop2->pcop2 = pic16_popCopyReg(dst);
        } else {
                /* the pCodeOp may be already allocated */
                pcop2 = (pCodeOpReg2 *)(src);
                pcop2->pcop2 = (pCodeOp *)(dst);
        }

  return PCOP(pcop2);
}


/*-----------------------------------------------------------------*/
/* pic16_popGet - asm operator to pcode operator conversion              */
/*-----------------------------------------------------------------*/
pCodeOp *pic16_popGet (asmop *aop, int offset) //, bool bit16, bool dname)
{
  //char *s = buffer ;
  char *rs;
  pCodeOp *pcop;

    FENTRY2;
    /* offset is greater than
    size then zero */

//    if (offset > (aop->size - 1) &&
//        aop->type != AOP_LIT)
//      return NULL;  //zero;

    /* depending on type */
    switch (aop->type) {
        
    case AOP_R0:
    case AOP_R1:
    case AOP_DPTR:
    case AOP_DPTR2:
        DEBUGpic16_emitcode(";8051 legacy","%d type = %s",__LINE__,pic16_AopType(aop->type));
        fprintf(stderr, ";8051 legacy %d type = %s\n",__LINE__,pic16_AopType(aop->type));
        assert( 0 );
        return NULL;


    case AOP_FSR0:
    case AOP_FSR2:
      pcop = Safe_calloc(1, sizeof(pCodeOpReg));
      PCOR(pcop)->rIdx = aop->aopu.aop_ptr->rIdx+2;     /* access PLUSW register */
      PCOR(pcop)->r = pic16_regWithIdx( PCOR(pcop)->rIdx );
      PCOR(pcop)->r->wasUsed = 1;
      PCOR(pcop)->r->isFree = 0;
      
      PCOR(pcop)->instance = offset;
      pcop->type = PCOR(pcop)->r->pc_type;
      return (pcop);

    case AOP_IMMD:
      DEBUGpic16_emitcode(";","%d\tAOP_IMMD",__LINE__);
      return pic16_popGetImmd(aop->aopu.aop_immd,offset,0);

    case AOP_STA:
      /* pCodeOp is already allocated from aopForSym */
        DEBUGpic16_emitcode(";---", "%d getting stack + offset %d\n", __LINE__, offset);
        pcop = pic16_pCodeOpCopy(aop->aopu.stk.pop[offset]);
          
      return (pcop);
      
    case AOP_ACC:
      {
        int rIdx = IDX_WREG;            //aop->aopu.aop_reg[offset]->rIdx;

        fprintf(stderr, "%s:%d returning register AOP_ACC %s\n", __FILE__, __LINE__, aop->aopu.aop_str[offset]);

        DEBUGpic16_emitcode(";","%d\tAOP_ACC", __LINE__);
        
        pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
        PCOR(pcop)->rIdx = rIdx;
        PCOR(pcop)->r = pic16_typeRegWithIdx(rIdx, REG_SFR, 1); // pic16_regWithIdx(rIdx);
        PCOR(pcop)->r->wasUsed=1;
        PCOR(pcop)->r->isFree=0;

        PCOR(pcop)->instance = offset;
        pcop->type = PCOR(pcop)->r->pc_type;
//      rs = aop->aopu.aop_reg[offset]->name;
//      DEBUGpic16_emitcode(";","%d register idx = %d name =%s",__LINE__,rIdx,rs);
        return pcop;


//      return pic16_popRegFromString(aop->aopu.aop_str[offset], aop->size, offset);
//      return pic16_newpCodeOpRegFromStr(aop->aopu.aop_str[offset]);

//      assert( 0 );
      }
        
    case AOP_DIR:
      DEBUGpic16_emitcode(";","%d\tAOP_DIR", __LINE__);
      return pic16_popRegFromString(aop->aopu.aop_dir, aop->size, offset, NULL);
        
#if 0
    case AOP_PAGED:
      DEBUGpic16_emitcode(";","%d\tAOP_DIR", __LINE__);
      return pic16_popRegFromString(aop->aopu.aop_dir, aop->size, offset, NULL);
#endif

    case AOP_REG:
      {
        int rIdx;
        assert (aop && aop->aopu.aop_reg[offset] != NULL);
        rIdx = aop->aopu.aop_reg[offset]->rIdx;

        DEBUGpic16_emitcode(";","%d\tAOP_REG", __LINE__);
        
        pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
//      pcop->type = PO_GPR_REGISTER;
        PCOR(pcop)->rIdx = rIdx;
        PCOR(pcop)->r = pic16_allocWithIdx( rIdx );     //pic16_regWithIdx(rIdx);
        PCOR(pcop)->r->wasUsed=1;
        PCOR(pcop)->r->isFree=0;

        PCOR(pcop)->instance = offset;
        pcop->type = PCOR(pcop)->r->pc_type;
        
        DEBUGpic16_emitcode(";*+*", "%d\tAOP_REG type = %s", __LINE__, dumpPicOptype(pcop->type));
        rs = aop->aopu.aop_reg[offset]->name;
        DEBUGpic16_emitcode(";","%d register idx = %d name = %s",__LINE__,rIdx,rs);
        return pcop;
      }

    case AOP_CRY:
        DEBUGpic16_emitcode(";","%d\tAOP_CRY", __LINE__);

      pcop = pic16_newpCodeOpBit(aop->aopu.aop_dir,-1,1, PO_GPR_REGISTER);
      PCOR(pcop)->instance = offset;
      PCOR(pcop)->r = pic16_dirregWithName(aop->aopu.aop_dir);
      //if(PCOR(pcop)->r == NULL)
      //fprintf(stderr,"%d - couldn't find %s in allocated registers\n",__LINE__,aop->aopu.aop_dir);
      return pcop;
        
    case AOP_LIT:
        DEBUGpic16_emitcode(";","%d\tAOP_LIT", __LINE__);
      return pic16_newpCodeOpLit(pic16aopLiteral (aop->aopu.aop_lit,offset));

    case AOP_STR:
      DEBUGpic16_emitcode(";","%d AOP_STR %s",__LINE__,aop->aopu.aop_str[offset]);
      return pic16_newpCodeOpRegFromStr(aop->aopu.aop_str[offset]);

      /*
      pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
      PCOR(pcop)->r = pic16_allocRegByName(aop->aopu.aop_str[offset]);
      PCOR(pcop)->rIdx = PCOR(pcop)->r->rIdx;
      pcop->type = PCOR(pcop)->r->pc_type;
      pcop->name = PCOR(pcop)->r->name;

      return pcop;
      */

    case AOP_PCODE:
      DEBUGpic16_emitcode(";","pic16_popGet AOP_PCODE (%s) %d %s offset %d",pic16_pCodeOpType(aop->aopu.pcop),
                          __LINE__, 
                          ((aop->aopu.pcop->name)? (aop->aopu.pcop->name) : "no name"), offset);
      pcop = pic16_pCodeOpCopy(aop->aopu.pcop);
      switch( aop->aopu.pcop->type ) {
        case PO_DIR: PCOR(pcop)->instance += offset; break;
        case PO_IMMEDIATE: PCOI(pcop)->offset = offset; break;
        case PO_WREG:
            assert (offset==0);
            break;
        default:
          fprintf (stderr, "%s: unhandled aop->aopu.pcop->type %d\n", __FUNCTION__, aop->aopu.pcop->type);
          assert( 0 );  /* should never reach here */;
      }
      return pcop;
    }

    werror(E_INTERNAL_ERROR,__FILE__,__LINE__,
           "pic16_popGet got unsupported aop->type");
    exit(0);
}
/*-----------------------------------------------------------------*/
/* pic16_aopPut - puts a string for a aop                                */
/*-----------------------------------------------------------------*/
void pic16_aopPut (asmop *aop, char *s, int offset)
{
    char *d = buffer ;
    symbol *lbl ;

    return;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    if (aop->size && offset > ( aop->size - 1)) {
        werror(E_INTERNAL_ERROR,__FILE__,__LINE__,
               "pic16_aopPut got offset > aop->size");
        exit(0);
    }

    /* will assign value to value */
    /* depending on where it is ofcourse */
    switch (aop->type) {
    case AOP_DIR:
      if (offset) {
        sprintf(d,"(%s + %d)",
                aop->aopu.aop_dir,offset);
        fprintf(stderr,"oops pic16_aopPut:AOP_DIR did this %s\n",s);

      } else
            sprintf(d,"%s",aop->aopu.aop_dir);
        
        if (strcmp(d,s)) {
          DEBUGpic16_emitcode(";","%d",__LINE__);
          if(strcmp(s,"W"))
            pic16_emitcode("movf","%s,w",s);
          pic16_emitcode("movwf","%s",d);

          if(strcmp(s,"W")) {
            pic16_emitcode(";BUG!? should have this:movf","%s,w   %d",s,__LINE__);
            if(offset >= aop->size) {
              pic16_emitpcode(POC_CLRF,pic16_popGet(aop,offset));
              break;
            } else
              pic16_emitpcode(POC_MOVLW,pic16_popGetImmd(s,offset,0));
          }

          pic16_emitpcode(POC_MOVWF,pic16_popGet(aop,offset));


        }
        break;
        
    case AOP_REG:
      if (strcmp(aop->aopu.aop_reg[offset]->name,s) != 0) { // &&
        //strcmp(aop->aopu.aop_reg[offset]->dname,s)!= 0){
          /*
            if (*s == '@'           ||
                strcmp(s,"r0") == 0 ||
                strcmp(s,"r1") == 0 ||
                strcmp(s,"r2") == 0 ||
                strcmp(s,"r3") == 0 ||
                strcmp(s,"r4") == 0 ||
                strcmp(s,"r5") == 0 ||
                strcmp(s,"r6") == 0 || 
                strcmp(s,"r7") == 0 )
                pic16_emitcode("mov","%s,%s  ; %d",
                         aop->aopu.aop_reg[offset]->dname,s,__LINE__);
            else
          */

          if(strcmp(s,"W")==0 )
            pic16_emitcode("movf","%s,w  ; %d",s,__LINE__);

          pic16_emitcode("movwf","%s",
                   aop->aopu.aop_reg[offset]->name);

          if(strcmp(s,zero)==0) {
            pic16_emitpcode(POC_CLRF,pic16_popGet(aop,offset));

          } else if(strcmp(s,"W")==0) {
            pCodeOp *pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
            pcop->type = PO_GPR_REGISTER;

            PCOR(pcop)->rIdx = -1;
            PCOR(pcop)->r = NULL;

            DEBUGpic16_emitcode(";","%d",__LINE__);
            pcop->name = Safe_strdup(s);
            pic16_emitpcode(POC_MOVFW,pcop);
            pic16_emitpcode(POC_MOVWF,pic16_popGet(aop,offset));
          } else if(strcmp(s,one)==0) {
            pic16_emitpcode(POC_CLRF,pic16_popGet(aop,offset));
            pic16_emitpcode(POC_INCF,pic16_popGet(aop,offset));
          } else {
            pic16_emitpcode(POC_MOVWF,pic16_popGet(aop,offset));
          }
        }
        break;
        
    case AOP_DPTR:
    case AOP_DPTR2:
    
    if (aop->type == AOP_DPTR2)
    {
        genSetDPTR(1);
    }
    
        if (aop->code) {
            werror(E_INTERNAL_ERROR,__FILE__,__LINE__,
                   "pic16_aopPut writting to code space");
            exit(0);
        }
        
        while (offset > aop->coff) {
            aop->coff++;
            pic16_emitcode ("inc","dptr");
        }
        
        while (offset < aop->coff) {
            aop->coff-- ;
            pic16_emitcode("lcall","__decdptr");
        }
        
        aop->coff = offset;
        
        /* if not in accumulater */
        MOVA(s);        
        
        pic16_emitcode ("movx","@dptr,a");
        
    if (aop->type == AOP_DPTR2)
    {
        genSetDPTR(0);
    }
        break;
        
    case AOP_R0:
    case AOP_R1:
        while (offset > aop->coff) {
            aop->coff++;
            pic16_emitcode("inc","%s",aop->aopu.aop_ptr->name);
        }
        while (offset < aop->coff) {
            aop->coff-- ;
            pic16_emitcode ("dec","%s",aop->aopu.aop_ptr->name);
        }
        aop->coff = offset;
        
        if (aop->paged) {
            MOVA(s);           
            pic16_emitcode("movx","@%s,a",aop->aopu.aop_ptr->name);
            
        } else
            if (*s == '@') {
                MOVA(s);
                pic16_emitcode("mov","@%s,a ; %d",aop->aopu.aop_ptr->name,__LINE__);
            } else
                if (strcmp(s,"r0") == 0 ||
                    strcmp(s,"r1") == 0 ||
                    strcmp(s,"r2") == 0 ||
                    strcmp(s,"r3") == 0 ||
                    strcmp(s,"r4") == 0 ||
                    strcmp(s,"r5") == 0 ||
                    strcmp(s,"r6") == 0 || 
                    strcmp(s,"r7") == 0 ) {
                    char buffer[10];
                    sprintf(buffer,"a%s",s);
                    pic16_emitcode("mov","@%s,%s",
                             aop->aopu.aop_ptr->name,buffer);
                } else
                    pic16_emitcode("mov","@%s,%s",aop->aopu.aop_ptr->name,s);
        
        break;
        
    case AOP_STK:
        if (strcmp(s,"a") == 0)
            pic16_emitcode("push","acc");
        else
            pic16_emitcode("push","%s",s);
        
        break;
        
    case AOP_CRY:
        /* if bit variable */
        if (!aop->aopu.aop_dir) {
            pic16_emitcode("clr","a");
            pic16_emitcode("rlc","a");
        } else {
            if (s == zero) 
                pic16_emitcode("clr","%s",aop->aopu.aop_dir);
            else
                if (s == one)
                    pic16_emitcode("setb","%s",aop->aopu.aop_dir);
                else
                    if (!strcmp(s,"c"))
                        pic16_emitcode("mov","%s,c",aop->aopu.aop_dir);
                    else {
                        lbl = newiTempLabel(NULL);
                        
                        if (strcmp(s,"a")) {
                            MOVA(s);
                        }
                        pic16_emitcode("clr","c");
                        pic16_emitcode("jz","%05d_DS_",lbl->key+100);
                        pic16_emitcode("cpl","c");
                        pic16_emitcode("","%05d_DS_:",lbl->key+100);
                        pic16_emitcode("mov","%s,c",aop->aopu.aop_dir);
                    }
        }
        break;
        
    case AOP_STR:
        aop->coff = offset;
        if (strcmp(aop->aopu.aop_str[offset],s))
            pic16_emitcode ("mov","%s,%s ; %d",aop->aopu.aop_str[offset],s,__LINE__);
        break;
        
    case AOP_ACC:
        aop->coff = offset;
        if (!offset && (strcmp(s,"acc") == 0))
            break;
        
        if (strcmp(aop->aopu.aop_str[offset],s))
            pic16_emitcode ("mov","%s,%s ; %d",aop->aopu.aop_str[offset],s, __LINE__);
        break;

    default :
        fprintf(stderr, "%s:%d: unknown aop->type = 0x%x\n", __FILE__, __LINE__, aop->type);
//      werror(E_INTERNAL_ERROR,__FILE__,__LINE__,
//             "pic16_aopPut got unsupported aop->type");
//      exit(0);    
    }    

}

/*-----------------------------------------------------------------*/
/* pic16_mov2w - generate either a MOVLW or MOVFW based operand type     */
/*-----------------------------------------------------------------*/
void pic16_mov2w (asmop *aop, int offset)
{
  DEBUGpic16_emitcode ("; ***","%s  %d  offset=%d",__FUNCTION__,__LINE__,offset);

  if(is_LitAOp(aop))
    pic16_emitpcode(POC_MOVLW,pic16_popGet(aop,offset));
  else
    pic16_emitpcode(POC_MOVFW,pic16_popGet(aop,offset));
}

void pic16_mov2f(asmop *dst, asmop *src, int offset)
{
  if(is_LitAOp(src)) {
    pic16_emitpcode(POC_MOVLW, pic16_popGet(src, offset));
    pic16_emitpcode(POC_MOVWF, pic16_popGet(dst, offset));
  } else {
    if(pic16_sameRegsOfs(src, dst, offset))return;
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p( pic16_popGet(src, offset),
                      pic16_popGet(dst, offset)));
  }
}

static void mov2fp(pCodeOp *dst, asmop *src, int offset)
{
  if(is_LitAOp(src)) {
    pic16_emitpcode(POC_MOVLW, pic16_popGet(src, offset));
    pic16_emitpcode(POC_MOVWF, dst);
  } else {
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(src, offset), dst));
  }
}

void pic16_testStackOverflow(void)
{
#define GSTACK_TEST_NAME        "_gstack_test"

  pic16_emitpcode(POC_CALL, pic16_popGetWithString( GSTACK_TEST_NAME ));
  
  {
    symbol *sym;

      sym = newSymbol( GSTACK_TEST_NAME , 0 );
      sprintf(sym->rname, "%s%s", port->fun_prefix, GSTACK_TEST_NAME);
//      strcpy(sym->rname, GSTACK_TEST_NAME);
      checkAddSym(&externs, sym);
  }

}

/* push pcop into stack */
void pic16_pushpCodeOp(pCodeOp *pcop)
{
//      DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
  pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pcop, pic16_popCopyReg( pic16_stack_postdec )));    //&pic16_pc_postdec1)));
  if(pic16_options.gstack)
    pic16_testStackOverflow();
    
}

/* pop pcop from stack */
void pic16_poppCodeOp(pCodeOp *pcop)
{
  pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg( pic16_stack_preinc ), pcop));
  if(pic16_options.gstack)
    pic16_testStackOverflow();
}


/*-----------------------------------------------------------------*/
/* pushw - pushes wreg to stack                                    */
/*-----------------------------------------------------------------*/
void pushw(void)
{
  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
  pic16_emitpcode(POC_MOVWF, pic16_popCopyReg( pic16_stack_postdec ));
  if(pic16_options.gstack)
    pic16_testStackOverflow();
}

                
/*-----------------------------------------------------------------*/
/* pushaop - pushes aop to stack                                   */
/*-----------------------------------------------------------------*/
void pushaop(asmop *aop, int offset)
{
  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

  if(is_LitAOp(aop)) {
    pic16_emitpcode(POC_MOVLW, pic16_popGet(aop, offset));
    pic16_emitpcode(POC_MOVWF, pic16_popCopyReg( pic16_stack_postdec ));
  } else {
    pic16_emitpcode(POC_MOVFF,
      pic16_popGet2p(pic16_popGet(aop, offset), pic16_popCopyReg( pic16_stack_postdec )));
  }

  if(pic16_options.gstack)
    pic16_testStackOverflow();
}

/*-----------------------------------------------------------------*/
/* popaop - pops aop from stack                                    */
/*-----------------------------------------------------------------*/
void popaop(asmop *aop, int offset)
{
  DEBUGpic16_emitcode("; ***", "%s  %d", __FUNCTION__, __LINE__);
  pic16_emitpcode(POC_MOVFF, pic16_popCombine2(pic16_stack_preinc, PCOR(pic16_popGet(aop, offset)), 0));
  if(pic16_options.gstack)
    pic16_testStackOverflow();
}

void popaopidx(asmop *aop, int offset, int index)
{
  int ofs=1;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    if(STACK_MODEL_LARGE)ofs++;

    pic16_emitpcode(POC_MOVLW, pic16_popGetLit(index + ofs));
    pic16_emitpcode(POC_MOVFF, pic16_popCombine2(pic16_frame_plusw, PCOR(pic16_popGet(aop, offset)), 0));
    if(pic16_options.gstack)
      pic16_testStackOverflow();
}

#if !(USE_GENERIC_SIGNED_SHIFT)
/*-----------------------------------------------------------------*/
/* reAdjustPreg - points a register back to where it should        */
/*-----------------------------------------------------------------*/
static void reAdjustPreg (asmop *aop)
{
    int size ;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    aop->coff = 0;
    if ((size = aop->size) <= 1)
        return ;
    size-- ;
    switch (aop->type) {
        case AOP_R0 :
        case AOP_R1 :
            while (size--)
                pic16_emitcode("dec","%s",aop->aopu.aop_ptr->name);
            break;          
        case AOP_DPTR :
        case AOP_DPTR2:
            if (aop->type == AOP_DPTR2)
            {
                genSetDPTR(1);
            } 
            while (size--)
            {
                pic16_emitcode("lcall","__decdptr");
            }
                
            if (aop->type == AOP_DPTR2)
            {
                genSetDPTR(0);
            }                
            break;  

    }   

}
#endif

#if 0
/*-----------------------------------------------------------------*/
/* opIsGptr: returns non-zero if the passed operand is             */   
/* a generic pointer type.                                         */
/*-----------------------------------------------------------------*/ 
static int opIsGptr(operand *op)
{
    sym_link *type = operandType(op);
    
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    if ((AOP_SIZE(op) == GPTRSIZE) && IS_GENPTR(type))
    {
        return 1;
    }
    return 0;        
}
#endif

/*-----------------------------------------------------------------*/
/* pic16_getDataSize - get the operand data size                         */
/*-----------------------------------------------------------------*/
int pic16_getDataSize(operand *op)
{
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);


    return AOP_SIZE(op);

    // tsd- in the pic port, the genptr size is 1, so this code here
    // fails. ( in the 8051 port, the size was 4).
#if 0
    int size;
    size = AOP_SIZE(op);
    if (size == GPTRSIZE)
    {
        sym_link *type = operandType(op);
        if (IS_GENPTR(type))
        {
            /* generic pointer; arithmetic operations
             * should ignore the high byte (pointer type).
             */
            size--;
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
        }
    }
    return size;
#endif
}

/*-----------------------------------------------------------------*/
/* pic16_outAcc - output Acc                                             */
/*-----------------------------------------------------------------*/
void pic16_outAcc(operand *result)
{
  int size,offset;
  DEBUGpic16_emitcode ("; ***","%s  %d - ",__FUNCTION__,__LINE__);
  DEBUGpic16_pic16_AopType(__LINE__,NULL,NULL,result);


  size = pic16_getDataSize(result);
  if(size){
    pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),0));
    size--;
    offset = 1;
    /* unsigned or positive */
    while(size--)
      pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),offset++));
  }

}

/*-----------------------------------------------------------------*/
/* pic16_outBitC - output a bit C                                  */
/*                 Move to result the value of Carry flag -- VR    */
/*-----------------------------------------------------------------*/
void pic16_outBitC(operand *result)
{
  int i;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    /* if the result is bit */
    if (AOP_TYPE(result) == AOP_CRY) {
        fprintf(stderr, "%s:%d: pic16 port warning: unsupported case\n", __FILE__, __LINE__);
        pic16_aopPut(AOP(result),"c",0);
    } else {

        i = AOP_SIZE(result);
        while(i--) {
                pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result), i));
        }
        pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result), 0));
    }
}

/*-----------------------------------------------------------------*/
/* pic16_outBitOp - output a bit from Op                           */
/*                 Move to result the value of set/clr op -- VR    */
/*-----------------------------------------------------------------*/
void pic16_outBitOp(operand *result, pCodeOp *pcop)
{
  int i;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    /* if the result is bit */
    if (AOP_TYPE(result) == AOP_CRY) {
        fprintf(stderr, "%s:%d: pic16 port warning: unsupported case\n", __FILE__, __LINE__);
        pic16_aopPut(AOP(result),"c",0);
    } else {

        i = AOP_SIZE(result);
        while(i--) {
                pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result), i));
        }
        pic16_emitpcode(POC_RRCF, pcop);          
        pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result), 0));
    }
}

/*-----------------------------------------------------------------*/
/* pic16_toBoolean - emit code for orl a,operator(sizeop)                */
/*-----------------------------------------------------------------*/
void pic16_toBoolean(operand *oper)
{
    int size = AOP_SIZE(oper) - 1;
    int offset = 1;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    if ( AOP_TYPE(oper) != AOP_ACC) {
      pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(oper),0));
    }
    while (size--) {
      pic16_emitpcode(POC_IORFW, pic16_popGet(AOP(oper),offset++));
    }
}

/*-----------------------------------------------------------------*/
/* genUminusFloat - unary minus for floating points                */
/*-----------------------------------------------------------------*/
static void genUminusFloat(operand *op,operand *result)
{
  int size ,offset =0 ;
  
    FENTRY;
    /* for this we just need to flip the 
    first it then copy the rest in place */
    size = AOP_SIZE(op);
    assert( size == AOP_SIZE(result) );

    while(size--) {
      pic16_mov2f(AOP(result), AOP(op), offset);
      offset++;
    }
    
    /* toggle the MSB's highest bit */
    pic16_emitpcode(POC_BTG, pic16_popCopyGPR2Bit(pic16_popGet(AOP(result), offset-1), 7));
}

/*-----------------------------------------------------------------*/
/* genUminus - unary minus code generation                         */
/*-----------------------------------------------------------------*/
static void genUminus (iCode *ic)
{
  int size, i;
  sym_link *optype, *rtype;
  symbol *label;
  int needLabel=0;

    FENTRY;     
    
    /* assign asmops */
    pic16_aopOp(IC_LEFT(ic),ic,FALSE);
    pic16_aopOp(IC_RESULT(ic),ic,TRUE);

    /* if both in bit space then special case */
    if (AOP_TYPE(IC_RESULT(ic)) == AOP_CRY
      && AOP_TYPE(IC_LEFT(ic)) == AOP_CRY ) { 
        
        pic16_emitpcode(POC_BCF,   pic16_popGet(AOP(IC_RESULT(ic)),0));
        pic16_emitpcode(POC_BTFSS, pic16_popGet(AOP(IC_LEFT(ic)),0));
        pic16_emitpcode(POC_BSF,   pic16_popGet(AOP(IC_RESULT(ic)),0));
        goto release; 
    } 

    optype = operandType(IC_LEFT(ic));
    rtype = operandType(IC_RESULT(ic));


    /* if float then do float stuff */
    if (IS_FLOAT(optype) || IS_FIXED(optype)) {
      if(IS_FIXED(optype))
        debugf("implement fixed16x16 type\n", 0);
        
        genUminusFloat(IC_LEFT(ic),IC_RESULT(ic));
        goto release;
    }

    /* otherwise subtract from zero by taking the 2's complement */
    size = AOP_SIZE(IC_LEFT(ic));
    assert( size == AOP_SIZE(IC_RESULT(ic)) );
    label = newiTempLabel ( NULL );
    
    if (pic16_sameRegs (AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic)))) {
      for (i=size-1; i > 0; i--) {
        pic16_emitpcode (POC_COMF, pic16_popGet (AOP(IC_LEFT(ic)), i));
      } // for
      pic16_emitpcode (POC_NEGF, pic16_popGet (AOP(IC_LEFT(ic)), 0));
      for (i=1; i < size; i++) {
        if (i == size - 1) { emitSKPNZ; } else { pic16_emitpcode (POC_BNZ, pic16_popGetLabel (label->key)); needLabel++; }
        pic16_emitpcode (POC_INCF, pic16_popGet (AOP(IC_LEFT(ic)), i));
      } // for
    } else {
      for (i=size-1; i >= 0; i--) {
        pic16_emitpcode (POC_COMFW, pic16_popGet (AOP(IC_LEFT(ic)), i));
        pic16_emitpcode (POC_MOVWF, pic16_popGet (AOP(IC_RESULT(ic)), i));
      } // for
      if (size > 1) {
        for (i=0; i < size-2; i++) {
          pic16_emitpcode (POC_INCF, pic16_popGet (AOP(IC_RESULT(ic)),i));
          pic16_emitpcode (POC_BNZ, pic16_popGetLabel (label->key)); needLabel++;
        } // for
        pic16_emitpcode (POC_INFSNZ, pic16_popGet (AOP(IC_RESULT(ic)), size-2));
      } // if
      pic16_emitpcode (POC_INCF, pic16_popGet(AOP(IC_RESULT(ic)), size-1));
    }
    if (needLabel)
      pic16_emitpLabel (label->key);

release:
    /* release the aops */
    pic16_freeAsmop(IC_LEFT(ic),NULL,ic,(RESULTONSTACK(ic) ? 0 : 1));
    pic16_freeAsmop(IC_RESULT(ic),NULL,ic,TRUE);    
}

#if 0
/*-----------------------------------------------------------------*/
/* saveRegisters - will look for a call and save the registers     */
/*-----------------------------------------------------------------*/
static void saveRegisters(iCode *lic) 
{
    int i;
    iCode *ic;
    bitVect *rsave;
    sym_link *dtype;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    /* look for call */
    for (ic = lic ; ic ; ic = ic->next) 
        if (ic->op == CALL || ic->op == PCALL)
            break;

    if (!ic) {
        fprintf(stderr,"found parameter push with no function call\n");
        return ;
    }

    /* if the registers have been saved already then
    do nothing */
    if (ic->regsSaved || IFFUNC_CALLEESAVES(OP_SYMBOL(IC_LEFT(ic))->type))
        return ;

    /* find the registers in use at this time 
    and push them away to safety */
    rsave = bitVectCplAnd(bitVectCopy(ic->rMask),
                          ic->rUsed);

    ic->regsSaved = 1;
    if (options.useXstack) {
        if (bitVectBitValue(rsave,R0_IDX))
            pic16_emitcode("mov","b,r0");
        pic16_emitcode("mov","r0,%s",spname);
        for (i = 0 ; i < pic16_nRegs ; i++) {
            if (bitVectBitValue(rsave,i)) {
                if (i == R0_IDX)
                    pic16_emitcode("mov","a,b");
                else
                    pic16_emitcode("mov","a,%s",pic16_regWithIdx(i)->name);
                pic16_emitcode("movx","@r0,a");
                pic16_emitcode("inc","r0");
            }
        }
        pic16_emitcode("mov","%s,r0",spname);
        if (bitVectBitValue(rsave,R0_IDX))
            pic16_emitcode("mov","r0,b");           
    }// else
    //for (i = 0 ; i < pic16_nRegs ; i++) {
    //    if (bitVectBitValue(rsave,i))
    //  pic16_emitcode("push","%s",pic16_regWithIdx(i)->dname);
    //}

    dtype = operandType(IC_LEFT(ic));
    if (currFunc && dtype && 
        (FUNC_REGBANK(currFunc->type) != FUNC_REGBANK(dtype)) &&
        IFFUNC_ISISR(currFunc->type) &&
        !ic->bankSaved) 

        saverbank(FUNC_REGBANK(dtype),ic,TRUE);

}
/*-----------------------------------------------------------------*/
/* unsaveRegisters - pop the pushed registers                      */
/*-----------------------------------------------------------------*/
static void unsaveRegisters (iCode *ic)
{
    int i;
    bitVect *rsave;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    /* find the registers in use at this time 
    and push them away to safety */
    rsave = bitVectCplAnd(bitVectCopy(ic->rMask),
                          ic->rUsed);
    
    if (options.useXstack) {
        pic16_emitcode("mov","r0,%s",spname);   
        for (i =  pic16_nRegs ; i >= 0 ; i--) {
            if (bitVectBitValue(rsave,i)) {
                pic16_emitcode("dec","r0");
                pic16_emitcode("movx","a,@r0");
                if (i == R0_IDX)
                    pic16_emitcode("mov","b,a");
                else
                    pic16_emitcode("mov","%s,a",pic16_regWithIdx(i)->name);
            }       

        }
        pic16_emitcode("mov","%s,r0",spname);
        if (bitVectBitValue(rsave,R0_IDX))
            pic16_emitcode("mov","r0,b");
    } //else
    //for (i =  pic16_nRegs ; i >= 0 ; i--) {
    //    if (bitVectBitValue(rsave,i))
    //  pic16_emitcode("pop","%s",pic16_regWithIdx(i)->dname);
    //}

}  
#endif

#if 0  // patch 14
/*-----------------------------------------------------------------*/
/* pushSide -                                                      */
/*-----------------------------------------------------------------*/
static void pushSide(operand * oper, int size)
{
        int offset = 0;
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
        while (size--) {
                char *l = pic16_aopGet(AOP(oper),offset++,FALSE,TRUE);
                if (AOP_TYPE(oper) != AOP_REG &&
                    AOP_TYPE(oper) != AOP_DIR &&
                    strcmp(l,"a") ) {
                        pic16_emitcode("mov","a,%s",l);
                        pic16_emitcode("push","acc");
                } else
                        pic16_emitcode("push","%s",l);
        }
}
#endif // patch 14

void pic16_loadFromReturn(operand *op, int offset, pCodeOp *src)
{
  if((AOP(op)->type == AOP_PCODE) && (AOP(op)->aopu.pcop->type == PO_IMMEDIATE)) {
    pic16_emitpcode(POC_MOVFW, src);
    pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(op), offset));
  } else {
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
        src, pic16_popGet(AOP(op), offset)));
  }
}


/*-----------------------------------------------------------------*/
/* assignResultValue - assign results to oper, rescall==1 is       */
/*                     called from genCall() or genPcall()         */
/*-----------------------------------------------------------------*/
static void assignResultValue(operand * oper, int rescall)
{
  int size = AOP_SIZE(oper);
  int offset=0;
  
    FENTRY2;
//    DEBUGpic16_emitcode ("; ***","%s  %d rescall:%d size:%d",__FUNCTION__,__LINE__,rescall,size); // patch 14
    DEBUGpic16_pic16_AopType(__LINE__,oper,NULL,NULL);

    if(rescall) {
      /* assign result from a call/pcall function() */
                
      /* function results are stored in a special order,
       * see top of file with Function return policy, or manual */

      if(size <= 4) {
        /* 8-bits, result in WREG */
        pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(oper), 0));
                        
        if(size>1) {
          /* 16-bits, result in PRODL:WREG */
          pic16_loadFromReturn(oper, 1, pic16_popCopyReg(&pic16_pc_prodl));
        }
                        
        if(size>2) {
          /* 24-bits, result in PRODH:PRODL:WREG */
          pic16_loadFromReturn(oper, 2, pic16_popCopyReg(&pic16_pc_prodh)); // patch 14
        }
                        
        if(size>3) {
          /* 32-bits, result in FSR0L:PRODH:PRODL:WREG */
          pic16_loadFromReturn(oper, 3, pic16_popCopyReg(&pic16_pc_fsr0l)); // patch14
        }
      
      } else {
        /* >32-bits, result on stack, and FSR0 points to beginning.
         * Fix stack when done */
        /* FIXME FIXME */
//      debugf("WARNING: Possible bug when returning more than 4-bytes\n");
        while (size--) {
//          DEBUGpic16_emitcode("; ", "POC_MOVLW %d", GpsuedoStkPtr);
//          DEBUGpic16_emitcode("; ", "POC_MOVFW PLUSW2");
                
          popaopidx(AOP(oper), size, GpsuedoStkPtr);
          GpsuedoStkPtr++;
        }
                        
        /* fix stack */
        pic16_emitpcode(POC_MOVLW, pic16_popGetLit( AOP_SIZE(oper) ));
        pic16_emitpcode(POC_ADDWF, pic16_popCopyReg( pic16_stackpnt_lo ));      //&pic16_pc_fsr1l ));
        if(STACK_MODEL_LARGE) {
          emitSKPNC;
          pic16_emitpcode(POC_INCF, pic16_popCopyReg( pic16_stackpnt_hi ));     //&pic16_pc_fsr1h ));
        }
      }                 
    } else {
      int areg = 0;             /* matching argument register */
      
//      debugf("_G.useWreg = %d\tGpsuedoStkPtr = %d\n", _G.useWreg, GpsuedoStkPtr);
      areg = SPEC_ARGREG( OP_SYM_ETYPE( oper ) ) - 1;


      /* its called from genReceive (probably) -- VR */
      /* I hope this code will not be called from somewhere else in the future! 
       * We manually set the pseudo stack pointer in genReceive. - dw
       */
      if(!GpsuedoStkPtr && _G.useWreg) {
//        DEBUGpic16_emitcode("; ", "pop %d", GpsuedoStkPtr);

        /* The last byte in the assignment is in W */
        if(areg <= GpsuedoStkPtr) {
          size--;
          pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(oper), offset /*size*/));
          offset++;
//          debugf("receive from WREG\n", 0);
        }
        GpsuedoStkPtr++; /* otherwise the calculation below fails (-_G.useWreg) */
      }
//      GpsuedoStkPtr++;
      _G.stack_lat = AOP_SIZE(oper)-1;

      while (size) {
        size--;
        GpsuedoStkPtr++;
        popaopidx(AOP(oper), offset, GpsuedoStkPtr - _G.useWreg);
//        debugf("receive from STACK\n", 0);
        offset++;
      }
    }
}


/*-----------------------------------------------------------------*/
/* genIpush - generate code for pushing this gets a little complex */
/*-----------------------------------------------------------------*/
static void genIpush (iCode *ic)
{
//  int size, offset=0;

  FENTRY;
  DEBUGpic16_emitcode ("; ***","%s  %d - WARNING no code generated",__FUNCTION__,__LINE__);

  if(ic->parmPush) {
    pic16_aopOp(IC_LEFT(ic), ic, FALSE );

    /* send to stack as normal */
    addSet(&_G.sendSet,ic);
//    addSetHead(&_G.sendSet,ic);
    pic16_freeAsmop(IC_LEFT(ic),NULL,ic,TRUE);
  }

        
#if 0
    int size, offset = 0 ;
    char *l;


    /* if this is not a parm push : ie. it is spill push 
    and spill push is always done on the local stack */
    if (!ic->parmPush) {

        /* and the item is spilt then do nothing */
        if (OP_SYMBOL(IC_LEFT(ic))->isspilt)
            return ;

        pic16_aopOp(IC_LEFT(ic),ic,FALSE);
        size = AOP_SIZE(IC_LEFT(ic));
        /* push it on the stack */
        while(size--) {
            l = pic16_aopGet(AOP(IC_LEFT(ic)),offset++,FALSE,TRUE);
            if (*l == '#') {
                MOVA(l);
                l = "acc";
            }
            pic16_emitcode("push","%s",l);
        }
        return ;        
    }

    pic16_freeAsmop(IC_LEFT(ic),NULL,ic,TRUE);
#endif
}

/*-----------------------------------------------------------------*/
/* genIpop - recover the registers: can happen only for spilling   */
/*-----------------------------------------------------------------*/
static void genIpop (iCode *ic)
{
  FENTRY;
  DEBUGpic16_emitcode ("; ***","%s  %d - WARNING no code generated",__FUNCTION__,__LINE__);
#if 0
    int size,offset ;


    /* if the temp was not pushed then */
    if (OP_SYMBOL(IC_LEFT(ic))->isspilt)
        return ;

    pic16_aopOp(IC_LEFT(ic),ic,FALSE);
    size = AOP_SIZE(IC_LEFT(ic));
    offset = (size-1);
    while (size--) 
        pic16_emitcode("pop","%s",pic16_aopGet(AOP(IC_LEFT(ic)),offset--,
                                   FALSE,TRUE));

    pic16_freeAsmop(IC_LEFT(ic),NULL,ic,TRUE);
#endif
}

#if 0
/*-----------------------------------------------------------------*/
/* unsaverbank - restores the resgister bank from stack            */
/*-----------------------------------------------------------------*/
static void unsaverbank (int bank,iCode *ic,bool popPsw)
{
  DEBUGpic16_emitcode ("; ***","%s  %d - WARNING no code generated",__FUNCTION__,__LINE__);
#if 0
    int i;
    asmop *aop ;
    regs *r = NULL;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    if (popPsw) {
        if (options.useXstack) {
            aop = newAsmop(0);
            r = getFreePtr(ic,&aop,FALSE);
            
            
            pic16_emitcode("mov","%s,_spx",r->name);
            pic16_emitcode("movx","a,@%s",r->name);
            pic16_emitcode("mov","psw,a");
            pic16_emitcode("dec","%s",r->name);
            
        }else
            pic16_emitcode ("pop","psw");
    }

    for (i = (pic16_nRegs - 1) ; i >= 0 ;i--) {
        if (options.useXstack) {       
            pic16_emitcode("movx","a,@%s",r->name);
            //pic16_emitcode("mov","(%s+%d),a",
            //       regspic16[i].base,8*bank+regspic16[i].offset);
            pic16_emitcode("dec","%s",r->name);

        } else 
          pic16_emitcode("pop",""); //"(%s+%d)",
        //regspic16[i].base,8*bank); //+regspic16[i].offset);
    }

    if (options.useXstack) {

        pic16_emitcode("mov","_spx,%s",r->name);
        pic16_freeAsmop(NULL,aop,ic,TRUE);

    }
#endif 
}

/*-----------------------------------------------------------------*/
/* saverbank - saves an entire register bank on the stack          */
/*-----------------------------------------------------------------*/
static void saverbank (int bank, iCode *ic, bool pushPsw)
{
  DEBUGpic16_emitcode ("; ***","%s  %d - WARNING no code generated",__FUNCTION__,__LINE__);
#if 0
    int i;
    asmop *aop ;
    regs *r = NULL;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    if (options.useXstack) {

        aop = newAsmop(0);
        r = getFreePtr(ic,&aop,FALSE);  
        pic16_emitcode("mov","%s,_spx",r->name);

    }

    for (i = 0 ; i < pic16_nRegs ;i++) {
        if (options.useXstack) {
            pic16_emitcode("inc","%s",r->name);
            //pic16_emitcode("mov","a,(%s+%d)",
            //         regspic16[i].base,8*bank+regspic16[i].offset);
            pic16_emitcode("movx","@%s,a",r->name);           
        } else 
          pic16_emitcode("push","");// "(%s+%d)",
                     //regspic16[i].base,8*bank+regspic16[i].offset);
    }
    
    if (pushPsw) {
        if (options.useXstack) {
            pic16_emitcode("mov","a,psw");
            pic16_emitcode("movx","@%s,a",r->name);     
            pic16_emitcode("inc","%s",r->name);
            pic16_emitcode("mov","_spx,%s",r->name);       
            pic16_freeAsmop (NULL,aop,ic,TRUE);
            
        } else
            pic16_emitcode("push","psw");
        
        pic16_emitcode("mov","psw,#0x%02x",(bank << 3)&0x00ff);
    }
    ic->bankSaved = 1;
#endif
}
#endif  /* 0 */


static int wparamCmp(void *p1, void *p2)
{
  return (!strcmp((char *)p1, (char *)p2));
}

int inWparamList(char *s)
{
  return isinSetWith(wparamList, s, wparamCmp);
} 


/*-----------------------------------------------------------------*/
/* genCall - generates a call statement                            */
/*-----------------------------------------------------------------*/
static void genCall (iCode *ic)
{
  sym_link *ftype;   
  int stackParms=0;
  int use_wreg=0;
  int inwparam=0;
  char *fname;
  
    FENTRY;

    ftype = OP_SYM_TYPE(IC_LEFT(ic));
    /* if caller saves & we have not saved then */
//    if (!ic->regsSaved)
//      saveRegisters(ic);

        /* initialise stackParms for IPUSH pushes */
//      stackParms = psuedoStkPtr;
//      fprintf(stderr, "%s:%d ic parmBytes = %d\n", __FILE__, __LINE__, ic->parmBytes);
    fname = OP_SYMBOL(IC_LEFT(ic))->rname[0]?OP_SYMBOL(IC_LEFT(ic))->rname:OP_SYMBOL(IC_LEFT(ic))->name;
    inwparam = (inWparamList(OP_SYMBOL(IC_LEFT(ic))->name)) || (FUNC_ISWPARAM(OP_SYM_TYPE(IC_LEFT(ic))));

#if 0
    gpsimDebug_StackDump(__FILE__, __LINE__, fname );
#endif

    /* if send set is not empty the assign */
    if (_G.sendSet) {
      iCode *sic;
      int psuedoStkPtr=-1; 
      int firstTimeThruLoop = 1;


        /* reverse sendSet if function is not reentrant */
        if(!IFFUNC_ISREENT(ftype))
          _G.sendSet = reverseSet(_G.sendSet);

        /* First figure how many parameters are getting passed */
        stackParms = 0;
        use_wreg = 0;
        
        for (sic = setFirstItem(_G.sendSet) ; sic ; sic = setNextItem(_G.sendSet)) {
          int size;
//          int offset = 0;

            pic16_aopOp(IC_LEFT(sic),sic,FALSE);
            size = AOP_SIZE(IC_LEFT(sic));

            stackParms += size;

            /* pass the last byte through WREG */
            if(inwparam) {

              while (size--) {
                DEBUGpic16_emitcode ("; ","%d left %s",__LINE__,
                      pic16_AopType(AOP_TYPE(IC_LEFT(sic))));
                DEBUGpic16_emitcode("; ", "push %d", psuedoStkPtr-1);

                if(!firstTimeThruLoop) {
                  /* If this is not the first time we've been through the loop
                   * then we need to save the parameter in a temporary
                   * register. The last byte of the last parameter is
                   * passed in W. */

                  pushw();
//                  --psuedoStkPtr;             // sanity check
                  use_wreg = 1;
                }
                
                firstTimeThruLoop=0;

                pic16_mov2w (AOP(IC_LEFT(sic)), size);

//                offset++;
              }
            } else {
              /* all arguments are passed via stack */
              use_wreg = 0;

              while (size--) {
                DEBUGpic16_emitcode ("; ","%d left %s",__LINE__,
                      pic16_AopType(AOP_TYPE(IC_LEFT(sic))));
                DEBUGpic16_emitcode("; ", "push %d", psuedoStkPtr-1);

//                pushaop(AOP(IC_LEFT(sic)), size);
                pic16_mov2w (AOP(IC_LEFT(sic)), size);

                if(!_G.resDirect)
                  pushw();
              }
            }

            pic16_freeAsmop (IC_LEFT(sic),NULL,sic,TRUE);
          }

          if(inwparam) {
            if(IFFUNC_HASVARARGS(ftype) || IFFUNC_ISREENT(ftype)) {
              pushw();  /* save last parameter to stack if functions has varargs */
              use_wreg = 0;
            } else
              use_wreg = 1;
          } else use_wreg = 0;

          _G.stackRegSet = _G.sendSet;
          _G.sendSet = NULL;
    }

    /* make the call */
    pic16_emitpcode(POC_CALL,pic16_popGetWithString(fname));

    GpsuedoStkPtr=0;
    
    /* if we need to assign a result value */
    if ((IS_ITEMP(IC_RESULT(ic))
          && (OP_SYMBOL(IC_RESULT(ic))->nRegs
              || OP_SYMBOL(IC_RESULT(ic))->spildir ))
        || IS_TRUE_SYMOP(IC_RESULT(ic)) ) {

      _G.accInUse++;
      pic16_aopOp(IC_RESULT(ic),ic,FALSE);
      _G.accInUse--;

      assignResultValue(IC_RESULT(ic), 1);

      DEBUGpic16_emitcode ("; ","%d left %s",__LINE__,
                pic16_AopType(AOP_TYPE(IC_RESULT(ic))));
                
      pic16_freeAsmop(IC_RESULT(ic),NULL, ic,TRUE);
    }

    if(!stackParms && ic->parmBytes) {
      stackParms = ic->parmBytes;
    }
      
    stackParms -= use_wreg;
    
    if(stackParms>0) {
      if(stackParms == 1) {
        pic16_emitpcode(POC_INCF, pic16_popCopyReg(pic16_stackpnt_lo ));        //&pic16_pc_fsr1l));
      } else {
        pic16_emitpcode(POC_MOVLW, pic16_popGetLit(stackParms));
        pic16_emitpcode(POC_ADDWF, pic16_popCopyReg( pic16_stackpnt_lo ));      //&pic16_pc_fsr1l ));
      }
      if(STACK_MODEL_LARGE) {
        emitSKPNC;
        pic16_emitpcode(POC_INCF, pic16_popCopyReg( pic16_stackpnt_hi ));       //&pic16_pc_fsr1h ));
      }
    }

#if 0
    gpsimDebug_StackDump(__FILE__, __LINE__, fname);
#endif

    /* adjust the stack for parameters if required */
//    fprintf(stderr, "%s:%d: %s ic->parmBytes= %d\n", __FILE__, __LINE__, OP_SYMBOL(IC_LEFT(ic))->name, ic->parmBytes);

#if 0
      /* if register bank was saved then pop them */
      if (ic->bankSaved)
        unsaverbank(FUNC_REGBANK(dtype),ic,TRUE);

      /* if we hade saved some registers then unsave them */
      if (ic->regsSaved && !IFFUNC_CALLEESAVES(dtype))
        unsaveRegisters (ic);
#endif
}



/*-----------------------------------------------------------------*/
/* genPcall - generates a call by pointer statement                */
/*            new version, created from genCall - HJD              */
/*-----------------------------------------------------------------*/
static void genPcall (iCode *ic)
{
  sym_link *ftype, *fntype;
  int stackParms=0;
  symbol *retlbl = newiTempLabel(NULL);
  pCodeOp *pcop_lbl = pic16_popGetLabel(retlbl->key);
  
    FENTRY;

    ftype = OP_SYM_TYPE(IC_LEFT(ic));
    fntype = operandType( IC_LEFT(ic) )->next;

    /* if send set is not empty the assign */
    if (_G.sendSet) {
      iCode *sic;
      int psuedoStkPtr=-1; 

      /* reverse sendSet if function is not reentrant */
      if(!IFFUNC_ISREENT(fntype))
        _G.sendSet = reverseSet(_G.sendSet);

      stackParms = 0;
      
      for (sic = setFirstItem(_G.sendSet) ; sic ; sic = setNextItem(_G.sendSet)) {
        int size;

          pic16_aopOp(IC_LEFT(sic),sic,FALSE);
          size = AOP_SIZE(IC_LEFT(sic));
          stackParms += size;

          /* all parameters are passed via stack, since WREG is clobbered
           * by the calling sequence */
          while (size--) {
            DEBUGpic16_emitcode ("; ","%d left %s",__LINE__,
            pic16_AopType(AOP_TYPE(IC_LEFT(sic))));
            DEBUGpic16_emitcode("; ", "push %d", psuedoStkPtr-1);

            pic16_mov2w (AOP(IC_LEFT(sic)), size);
            pushw();
          }

          pic16_freeAsmop (IC_LEFT(sic),NULL,sic,TRUE);
      }

      _G.stackRegSet = _G.sendSet;
      _G.sendSet = NULL;
    }

    pic16_aopOp(IC_LEFT(ic),ic,FALSE);

    // push return address
    // push $ on return stack, then replace with retlbl

    /* Thanks to Thorsten Klose for pointing out that the following
     * snippet should be interrupt safe */
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_intcon), pic16_popCopyReg(&pic16_pc_postdec1)));
    pic16_emitpcode(POC_BCF, pic16_popCopyGPR2Bit(pic16_popCopyReg(&pic16_pc_intcon), 7));

    pic16_emitpcodeNULLop(POC_PUSH);

    pic16_emitpcode(POC_MOVLW, pic16_popGetImmd(pcop_lbl->name, 0, 0));
    pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_tosl));
    pic16_emitpcode(POC_MOVLW, pic16_popGetImmd(pcop_lbl->name, 1, 0));
    pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_tosh));
    pic16_emitpcode(POC_MOVLW, pic16_popGetImmd(pcop_lbl->name, 2, 0));
    pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_tosu));


    /* restore interrupt control register */
    pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_preinc1));
    pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_intcon));

    /* make the call by writing the pointer into pc */
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(IC_LEFT(ic)),2), pic16_popCopyReg(&pic16_pc_pclatu)));
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(IC_LEFT(ic)),1), pic16_popCopyReg(&pic16_pc_pclath)));

    // note: MOVFF to PCL not allowed
    pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_LEFT(ic)),0));
    pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_pcl));


    /* return address is here: (X) */
    pic16_emitpLabelFORCE(retlbl->key);

    pic16_freeAsmop (IC_LEFT(ic),NULL,ic,TRUE);

    GpsuedoStkPtr=0;
    /* if we need assign a result value */
    if ((IS_ITEMP(IC_RESULT(ic))
          && (OP_SYMBOL(IC_RESULT(ic))->nRegs
              || OP_SYMBOL(IC_RESULT(ic))->spildir ))
        || IS_TRUE_SYMOP(IC_RESULT(ic)) ) {

      _G.accInUse++;
      pic16_aopOp(IC_RESULT(ic),ic,FALSE);
      _G.accInUse--;

      assignResultValue(IC_RESULT(ic), 1);

      DEBUGpic16_emitcode ("; ","%d left %s",__LINE__,
              pic16_AopType(AOP_TYPE(IC_RESULT(ic))));
                
      pic16_freeAsmop(IC_RESULT(ic),NULL, ic,TRUE);
    }

//    stackParms -= use_wreg;
    
    if(stackParms>0) {
      pic16_emitpcode(POC_MOVLW, pic16_popGetLit(stackParms));
      pic16_emitpcode(POC_ADDWF, pic16_popCopyReg( pic16_stackpnt_lo ));
      if(STACK_MODEL_LARGE) {
        emitSKPNC;
        pic16_emitpcode(POC_INCF, pic16_popCopyReg( pic16_stackpnt_hi ));
      }
    }
}

/*-----------------------------------------------------------------*/
/* resultRemat - result  is rematerializable                       */
/*-----------------------------------------------------------------*/
static int resultRemat (iCode *ic)
{
  //    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
  if (SKIP_IC(ic) || ic->op == IFX)
    return 0;

  if (IC_RESULT(ic) && IS_ITEMP(IC_RESULT(ic))) {
    symbol *sym = OP_SYMBOL(IC_RESULT(ic));
    if (sym->remat && !POINTER_SET(ic)) 
      return 1;
  }

  return 0;
}

#if defined(__BORLANDC__) || defined(_MSC_VER)
#define STRCASECMP stricmp
#else
#define STRCASECMP strcasecmp
#endif

#if 0
/*-----------------------------------------------------------------*/
/* inExcludeList - return 1 if the string is in exclude Reg list   */
/*-----------------------------------------------------------------*/
static bool inExcludeList(char *s)
{
  DEBUGpic16_emitcode ("; ***","%s  %d - WARNING no code generated",__FUNCTION__,__LINE__);
    int i =0;
    
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    if (options.excludeRegs[i] &&
    STRCASECMP(options.excludeRegs[i],"none") == 0)
        return FALSE ;

    for ( i = 0 ; options.excludeRegs[i]; i++) {
        if (options.excludeRegs[i] &&
        STRCASECMP(s,options.excludeRegs[i]) == 0)
            return TRUE;
    }
    return FALSE ;
}
#endif

/*-----------------------------------------------------------------*/
/* genFunction - generated code for function entry                 */
/*-----------------------------------------------------------------*/
static void genFunction (iCode *ic)
{
  symbol *sym;
  sym_link *ftype;
  
    FENTRY;
    DEBUGpic16_emitcode ("; ***","%s  %d curr label offset=%dprevious max_key=%d ",__FUNCTION__,__LINE__,pic16_labelOffset,max_key);

    pic16_labelOffset += (max_key+4);
    max_key=0;
    GpsuedoStkPtr=0;
    _G.nRegsSaved = 0;
        
    ftype = operandType(IC_LEFT(ic));
    sym = OP_SYMBOL(IC_LEFT(ic));

    if(IFFUNC_ISISR(sym->type /*ftype*/)) {
      /* create an absolute section at the interrupt vector:
       * that is 0x0008 for interrupt 1 (high), 0x0018 interrupt 2 (low) */
      symbol *asym;
      char asymname[128];
      pBlock *apb;

//        debugf("interrupt number: %hhi\n", FUNC_INTNO(sym->type));

        if(FUNC_INTNO(sym->type) == INTNO_UNSPEC)
          sprintf(asymname, "ivec_%s", sym->name);
        else
          sprintf(asymname, "ivec_0x%x_%s", FUNC_INTNO(sym->type), sym->name);
  
        /* when an interrupt is declared as naked, do not emit the special
         * wrapper segment at vector address. The user should take care for
         * this instead. -- VR */

        if(!IFFUNC_ISNAKED(ftype) && (FUNC_INTNO(sym->type) != INTNO_UNSPEC)) {
          asym = newSymbol(asymname, 0);
          apb = pic16_newpCodeChain(NULL, 'A', pic16_newpCodeCharP("; Starting pCode block for absolute section"));
          pic16_addpBlock( apb );

          pic16_addpCode2pBlock(apb, pic16_newpCodeCharP(";-----------------------------------------"));
          pic16_addpCode2pBlock(apb, pic16_newpCodeFunction(moduleName, asym->name));
          //pic16_addpCode2pBlock(apb, pic16_newpCode(POC_GOTO, pic16_popGetWithString( sym->rname )));
          //pic16_addpCode2pBlock(apb, pic16_newpCode(POC_GOTO, pic16_newpCodeOpLabel (sym->rname, 0)));
          pic16_addpCode2pBlock(apb, pic16_newpCodeAsmDir ("GOTO", "%s", sym->rname)); /* this suppresses a warning in LinkFlow */
                
          /* mark the end of this tiny function */
          pic16_addpCode2pBlock(apb,pic16_newpCodeFunction(NULL,NULL));
        } else {
          sprintf(asymname, "%s", sym->rname);
        }

        {
          absSym *abSym;

            abSym = Safe_calloc(1, sizeof(absSym));
            strcpy(abSym->name, asymname);

            switch( FUNC_INTNO(sym->type) ) {
              case 0: abSym->address = 0x000000; break;
              case 1: abSym->address = 0x000008; break;
              case 2: abSym->address = 0x000018; break;
              
              default:
//                fprintf(stderr, "no interrupt number is given\n");
                abSym->address = -1; break;
            }

            /* relocate interrupt vectors if needed */
            if(abSym->address != -1)
              abSym->address += pic16_options.ivt_loc;

            addSet(&absSymSet, abSym);
        }
    }

    /* create the function header */
    pic16_emitcode(";","-----------------------------------------");
    pic16_emitcode(";"," function %s",sym->name);
    pic16_emitcode(";","-----------------------------------------");

    pic16_emitcode("","%s:",sym->rname);
    pic16_addpCode2pBlock(pb,pic16_newpCodeFunction(moduleName,sym->rname));

    {
      absSym *ab;

        for(ab = setFirstItem(absSymSet); ab; ab = setNextItem(absSymSet)) {
          if(!strcmp(ab->name, sym->rname)) {
            pic16_pBlockConvert2Absolute(pb);
            break;
          }
        }
    }

    if(IFFUNC_ISNAKED(ftype)) {
      DEBUGpic16_emitcode("; ***", "_naked function, no prologue");
      return;
    }
        
    /* if critical function then turn interrupts off */
    if (IFFUNC_ISCRITICAL(ftype)) {
      //pic16_emitcode("clr","ea");
    }

    currFunc = sym;             /* update the currFunc symbol */
    _G.fregsUsed = sym->regsUsed;
    _G.sregsAlloc = newBitVect(128);
    

    /* if this is an interrupt service routine then
     * save wreg, status, bsr, prodl, prodh, fsr0l, fsr0h */
    if (IFFUNC_ISISR(sym->type)) {
        _G.usefastretfie = 1;   /* use shadow registers by default */
        
        /* an ISR should save: WREG, STATUS, BSR, PRODL, PRODH, FSR0L, FSR0H */
        if(!FUNC_ISSHADOWREGS(sym->type)) {
          /* do not save WREG,STATUS,BSR for high priority interrupts
           * because they are stored in the hardware shadow registers already */
          _G.usefastretfie = 0;
          pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_wreg ));
          pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_status ));
          pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_bsr ));
        }

        /* these should really be optimized somehow, because not all
         * interrupt handlers modify them */
        pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_prodl ));
        pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_prodh ));
        pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_fsr0l ));
        pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_fsr0h ));
        
//        pic16_pBlockConvert2ISR(pb);
    }

    /* emit code to setup stack frame if user enabled,
     * and function is not main() */
    
//    debugf(stderr, "function name: %s ARGS=%p\n", sym->name, FUNC_ARGS(sym->type));
    if(strcmp(sym->name, "main")) {
      if(0 
        || !options.ommitFramePtr 
//        || sym->regsUsed
        || IFFUNC_ARGS(sym->type)
        || FUNC_HASSTACKPARM(sym->etype)
        ) {
        /* setup the stack frame */
        if(STACK_MODEL_LARGE)
          pic16_pushpCodeOp(pic16_popCopyReg(pic16_framepnt_hi));
        pic16_pushpCodeOp(pic16_popCopyReg(pic16_framepnt_lo));

        pic16_emitpcode(POC_MOVFF, pic16_popCombine2( pic16_stackpnt_lo, pic16_framepnt_lo, 0));
        if(STACK_MODEL_LARGE)
          pic16_emitpcode(POC_MOVFF, pic16_popCombine2( pic16_stackpnt_hi, pic16_framepnt_hi, 0));
      }
    }

    if ((IFFUNC_ISREENT(sym->type) || options.stackAuto)
          && sym->stack) {

      if (sym->stack > 127)werror(W_STACK_OVERFLOW, sym->name);

      pic16_emitpcode(POC_MOVLW, pic16_popGetLit(sym->stack));
      pic16_emitpcode(POC_SUBWF, pic16_popCopyReg( pic16_stackpnt_lo ));        //&pic16_pc_fsr1l));
      emitSKPC;
      pic16_emitpcode(POC_DECF, pic16_popCopyReg( pic16_stackpnt_hi ));         //&pic16_pc_fsr1h));
    }
          
    if(inWparamList(sym->name) || FUNC_ISWPARAM(sym->type)) {
      if(IFFUNC_HASVARARGS(sym->type) || IFFUNC_ISREENT(sym->type))
        _G.useWreg = 0;
      else
        _G.useWreg = 1;
    } else
      _G.useWreg = 0;

    /* if callee-save to be used for this function
     * then save the registers being used in this function */
//    if (IFFUNC_CALLEESAVES(sym->type))
    {
      int i;

        /* if any registers used */
        if (sym->regsUsed) {
          /* save the registers used */
          DEBUGpic16_emitcode("; **", "Saving used registers in stack");
          pic16_emitpinfo(INF_LOCALREGS, pic16_newpCodeOpLocalRegs(LR_ENTRY_BEGIN));
          for ( i = 0 ; i < sym->regsUsed->size ; i++) {
            if (bitVectBitValue(sym->regsUsed,i)) {
              pic16_pushpCodeOp( pic16_popRegFromIdx(i) );
              _G.nRegsSaved++;

              if(!pic16_regWithIdx(i)->wasUsed) {
                fprintf(stderr, "%s:%d register %s is used in function but was wasUsed = 0d\n",
                              __FILE__, __LINE__, pic16_regWithIdx(i)->name);
                pic16_regWithIdx(i)->wasUsed = 1;
              }
            }
          }
          pic16_emitpinfo(INF_LOCALREGS, pic16_newpCodeOpLocalRegs(LR_ENTRY_END));
        }
    }
        
    DEBUGpic16_emitcode("; ", "need to adjust stack = %d", sym->stack);
//    fprintf(stderr, "Function '%s' uses %d bytes of stack\n", sym->name, sym->stack);
}

/*-----------------------------------------------------------------*/
/* genEndFunction - generates epilogue for functions               */
/*-----------------------------------------------------------------*/
static void genEndFunction (iCode *ic)
{
  symbol *sym = OP_SYMBOL(IC_LEFT(ic));

    FENTRY;

    if(IFFUNC_ISNAKED(sym->type)) {
      DEBUGpic16_emitcode("; ***", "_naked function, no epilogue");
      return;
    }

    _G.stack_lat = 0;

    /* add code for ISCRITICAL */
    if(IFFUNC_ISCRITICAL(sym->type)) {
      /* if critical function, turn on interrupts */
      
      /* TODO: add code here -- VR */
    }
    
//    sym->regsUsed = _G.fregsUsed;
    
    /* now we need to restore the registers */
    /* if any registers used */

    /* first restore registers that might be used for stack access */
    if(_G.sregsAllocSet) {
    regs *sr;
    
      _G.sregsAllocSet = reverseSet( _G.sregsAllocSet );
      for(sr=setFirstItem(_G.sregsAllocSet) ; sr; sr=setNextItem(_G.sregsAllocSet)) {
        pic16_poppCodeOp( pic16_popRegFromIdx( sr->rIdx ) );
      }
    }

    if (sym->regsUsed) {
      int i;

        pic16_emitpinfo(INF_LOCALREGS, pic16_newpCodeOpLocalRegs(LR_EXIT_BEGIN));
        /* restore registers used */
        DEBUGpic16_emitcode("; **", "Restoring used registers from stack");
        for ( i = sym->regsUsed->size; i >= 0; i--) {
          if (bitVectBitValue(sym->regsUsed,i)) {
            pic16_poppCodeOp( pic16_popRegFromIdx(i) );
            _G.nRegsSaved--;
          }
        }
        pic16_emitpinfo(INF_LOCALREGS, pic16_newpCodeOpLocalRegs(LR_EXIT_END));
    }

      

    if ((IFFUNC_ISREENT(sym->type) || options.stackAuto)
          && sym->stack) {
      if (sym->stack == 1) {
        pic16_emitpcode(POC_INFSNZ, pic16_popCopyReg( pic16_stackpnt_lo ));
        pic16_emitpcode(POC_INCF, pic16_popCopyReg( pic16_stackpnt_hi ));
      } else {
        // we have to add more than one...
        pic16_emitpcode(POC_MOVWF, pic16_popCopyReg( pic16_stack_postinc ));    // this holds a return value!
        pic16_emitpcode(POC_MOVLW, pic16_popGetLit(sym->stack-1));
        pic16_emitpcode(POC_ADDWF, pic16_popCopyReg( pic16_stackpnt_lo ));
        emitSKPNC;
        pic16_emitpcode(POC_INCF, pic16_popCopyReg( pic16_stackpnt_hi ));
        pic16_emitpcode(POC_COMF,  pic16_popCopyReg(&pic16_pc_wreg)); // WREG = -(WREG+1)!
        pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(pic16_stack_plusw)); // this holds a retrun value!
      }
    }

    if(strcmp(sym->name, "main")) {
      if(0
        || !options.ommitFramePtr
//        || sym->regsUsed
        || IFFUNC_ARGS(sym->type)
        || FUNC_HASSTACKPARM(sym->etype)
        ) {
        /* restore stack frame */
        if(STACK_MODEL_LARGE)
          pic16_poppCodeOp( pic16_popCopyReg( pic16_framepnt_hi ));
        pic16_poppCodeOp( pic16_popCopyReg( pic16_framepnt_lo ));
      }
    }

    _G.useWreg = 0;

    if (IFFUNC_ISISR(sym->type)) {
      pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_fsr0h ));
      pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_fsr0l));
      pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_prodh ));
      pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_prodl ));

      if(!FUNC_ISSHADOWREGS(sym->type)) {
        /* do not restore interrupt vector for WREG,STATUS,BSR
         * for high priority interrupt, see genFunction */
        pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_bsr ));
        pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_status ));
        pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_wreg ));
      }
//      _G.interruptvector = 0;         /* sanity check */


      /* if debug then send end of function */
/*      if (options.debug && currFunc)  */
      if (currFunc) {
        debugFile->writeEndFunction (currFunc, ic, 1);
      }
        
      if(_G.usefastretfie)
        pic16_emitpcode(POC_RETFIE, pic16_newpCodeOpLit(1));
      else
        pic16_emitpcodeNULLop(POC_RETFIE);

      pic16_addpCode2pBlock(pb,pic16_newpCodeFunction(NULL,NULL));
      
      _G.usefastretfie = 0;
      return;
    }

    if (IFFUNC_ISCRITICAL(sym->type)) {
      pic16_emitcode("setb","ea");
    }

    /* if debug then send end of function */
    if (currFunc) {
      debugFile->writeEndFunction (currFunc, ic, 1);
    }

    /* insert code to restore stack frame, if user enabled it
     * and function is not main() */
         

    pic16_emitpcodeNULLop(POC_RETURN);

    /* Mark the end of a function */
    pic16_addpCode2pBlock(pb,pic16_newpCodeFunction(NULL,NULL));
}


void pic16_storeForReturn(iCode *ic, /*operand *op,*/ int offset, pCodeOp *dest)
{
  unsigned long lit=1;
  operand *op;

    op = IC_LEFT(ic);
  
    // this fails for is_LitOp(op) (if op is an AOP_PCODE)
    if(AOP_TYPE(op) == AOP_LIT) {
      if(!IS_FLOAT(operandType( op ))) {
        lit = (unsigned long)floatFromVal(AOP(op)->aopu.aop_lit);
      } else {
        union {
          unsigned long lit_int;
          float lit_float;
        } info;
        
        /* take care if literal is a float */
        info.lit_float = floatFromVal(AOP(op)->aopu.aop_lit);
        lit = info.lit_int;
      }
    }

    if(is_LitOp(op)) {
      if(/*(OP_LIVETO(op) <= ic->seq) &&*/ (lit == 0)) {
        pic16_emitpcode(POC_CLRF, dest);
      } else {
        pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(op), offset));
        if(dest->type != PO_WREG)pic16_emitpcode(POC_MOVWF, dest);
      }
    } else {
      if(dest->type == PO_WREG && (offset == 0)) {
        pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(op), offset));
      return;
    }
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(op), offset), dest));
  }
}

/*-----------------------------------------------------------------*/
/* genRet - generate code for return statement                     */
/*-----------------------------------------------------------------*/
static void genRet (iCode *ic)
{
  int size;
  operand *left;

    FENTRY;
        /* if we have no return value then
         * just generate the "ret" */
        
        if (!IC_LEFT(ic)) 
                goto jumpret;       
    
        /* we have something to return then
         * move the return value into place */
        pic16_aopOp((left=IC_LEFT(ic)),ic,FALSE);
        size = AOP_SIZE(IC_LEFT(ic));

        if(size <= 4) {
          if(size>3)
            pic16_storeForReturn(ic, /*IC_LEFT(ic),*/ 3, pic16_popCopyReg(&pic16_pc_fsr0l));
          
          if(size>2)
            pic16_storeForReturn(ic, /*IC_LEFT(ic),*/ 2, pic16_popCopyReg(&pic16_pc_prodh));

          if(size>1)
            pic16_storeForReturn(ic, /*IC_LEFT(ic),*/ 1, pic16_popCopyReg(&pic16_pc_prodl));
          
          pic16_storeForReturn(ic, /*IC_LEFT(ic),*/ 0, pic16_popCopyReg(&pic16_pc_wreg));

        } else {
                /* >32-bits, setup stack and FSR0 */
                while (size--) {
//                      DEBUGpic16_emitcode("; ", "POC_MOVLW %d", GpsuedoStkPtr);
//                      DEBUGpic16_emitcode("; ", "POC_MOVFW PLUSW2");

                        pic16_pushpCodeOp( pic16_popGet( AOP( IC_LEFT(ic) ), size) );

//                      popaopidx(AOP(oper), size, GpseudoStkPtr);
                        GpsuedoStkPtr++;
                }
                        
                /* setup FSR0 */
                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
                        pic16_popCopyReg( pic16_stackpnt_lo ), pic16_popCopyReg(&pic16_pc_fsr0l)));

                if(STACK_MODEL_LARGE) {
                        pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
                                pic16_popCopyReg( pic16_stackpnt_hi ), pic16_popCopyReg(&pic16_pc_fsr0h)));
                } else {
                        pic16_emitpcode(POC_CLRF, pic16_popCopyReg( pic16_stackpnt_hi ));
                }
        }
                                
#if 0
        /* old code, left here for reference -- VR */    
        while (size--) {
          char *l ;

                if (AOP_TYPE(IC_LEFT(ic)) == AOP_DPTR) {
                        /* #NOCHANGE */
                        l = pic16_aopGet(AOP(IC_LEFT(ic)),offset++, FALSE,TRUE);
                        pic16_emitpcomment("push %s",l);
                        pushed++;
                } else {
                        DEBUGpic16_emitcode(";", "%d", __LINE__);
                        l = pic16_aopGet(AOP(IC_LEFT(ic)),offset, FALSE,FALSE);
                        DEBUGpic16_emitcode(";", "%d l= %s", __LINE__, l);       
                        
                        if (strcmp(fReturn[offset],l)) {
                                if( ( (AOP(IC_LEFT(ic))->type) == AOP_IMMD)
                                        || ((AOP(IC_LEFT(ic))->type) == AOP_LIT) ) {
                                        pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(IC_LEFT(ic)),offset));
                                } else {
                                        pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_LEFT(ic)),offset));
                                }
                                
                                if(size) {
                                        pic16_emitpcode(POC_MOVWF, pic16_popRegFromIdx(offset + pic16_Gstack_base_addr));
                                }
                                offset++;
                        }
                }
        }    

        if (pushed) {
                while(pushed) {
                        pushed--;
                        if (strcmp(fReturn[pushed],"a"))
                                pic16_emitcode("pop",fReturn[pushed]);
                        else
                                pic16_emitcode("pop","acc");
                }
        }
#endif


        pic16_freeAsmop (IC_LEFT(ic),NULL,ic,TRUE);
    
jumpret:
        /* generate a jump to the return label
         * if the next is not the return statement */
        if (!(ic->next && ic->next->op == LABEL
                && IC_LABEL(ic->next) == returnLabel)) {
        
                pic16_emitpcode(POC_GOTO,pic16_popGetLabel(returnLabel->key));
                pic16_emitcode("goto","_%05d_DS_",returnLabel->key+100 + pic16_labelOffset);
        }
}

/*-----------------------------------------------------------------*/
/* genLabel - generates a label                                    */
/*-----------------------------------------------------------------*/
static void genLabel (iCode *ic)
{
  FENTRY;

  /* special case never generate */
  if (IC_LABEL(ic) == entryLabel)
    return ;

  pic16_emitpLabel(IC_LABEL(ic)->key);
//  pic16_emitcode("","_%05d_DS_:",(IC_LABEL(ic)->key+100 + pic16_labelOffset));
}

/*-----------------------------------------------------------------*/
/* genGoto - generates a goto                                      */
/*-----------------------------------------------------------------*/
//tsd
static void genGoto (iCode *ic)
{
  FENTRY;
  pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_LABEL(ic)->key));
//  pic16_emitcode ("goto","_%05d_DS_",(IC_LABEL(ic)->key+100)+pic16_labelOffset);
}


/*-----------------------------------------------------------------*/
/* genMultbits :- multiplication of bits                           */
/*-----------------------------------------------------------------*/
static void genMultbits (operand *left, 
                         operand *right, 
                         operand *result)
{
  FENTRY;

  if(!pic16_sameRegs(AOP(result),AOP(right)))
    pic16_emitpcode(POC_BSF,  pic16_popGet(AOP(result),0));

  pic16_emitpcode(POC_BTFSC,pic16_popGet(AOP(right),0));
  pic16_emitpcode(POC_BTFSS,pic16_popGet(AOP(left),0));
  pic16_emitpcode(POC_BCF,  pic16_popGet(AOP(result),0));

}


/*-----------------------------------------------------------------*/
/* genMultOneByte : 8 bit multiplication & division                */
/*-----------------------------------------------------------------*/
static void genMultOneByte (operand *left,
                            operand *right,
                            operand *result)
{

  FENTRY;
  DEBUGpic16_pic16_AopType(__LINE__,left,right,result);
  DEBUGpic16_pic16_AopTypeSign(__LINE__,left,right,result);

  /* (if two literals, the value is computed before) */
  /* if one literal, literal on the right */
  if (AOP_TYPE(left) == AOP_LIT){
    operand *t = right;
    right = left;
    left = t;
  }

        /* size is already checked in genMult == 1 */
//      size = AOP_SIZE(result);

        if (AOP_TYPE(right) == AOP_LIT){
                pic16_emitpcomment("multiply lit val:%s by variable %s and store in %s", 
                                        pic16_aopGet(AOP(right),0,FALSE,FALSE), 
                                        pic16_aopGet(AOP(left),0,FALSE,FALSE), 
                                        pic16_aopGet(AOP(result),0,FALSE,FALSE));
        } else {
                pic16_emitpcomment("multiply variable :%s by variable %s and store in %s", 
                                        pic16_aopGet(AOP(right),0,FALSE,FALSE), 
                                        pic16_aopGet(AOP(left),0,FALSE,FALSE), 
                                        pic16_aopGet(AOP(result),0,FALSE,FALSE));
        }
        
        pic16_genMult8X8_8 (left, right,result);
}

/*-----------------------------------------------------------------*/
/* genMultOneWord : 16 bit multiplication                          */
/*-----------------------------------------------------------------*/
static void genMultOneWord (operand *left,
                            operand *right,
                            operand *result)
{
  FENTRY;
  DEBUGpic16_pic16_AopType(__LINE__,left,right,result);
  DEBUGpic16_pic16_AopTypeSign(__LINE__,left,right,result);

  /* (if two literals, the value is computed before)
   * if one literal, literal on the right */
  if (AOP_TYPE(left) == AOP_LIT){
    operand *t = right;
    right = left;
    left = t;
  }

  /* size is checked already == 2 */
//  size = AOP_SIZE(result);

  if (AOP_TYPE(right) == AOP_LIT) {
    pic16_emitpcomment("multiply lit val:%s by variable %s and store in %s", 
      pic16_aopGet(AOP(right),0,FALSE,FALSE), 
      pic16_aopGet(AOP(left),0,FALSE,FALSE), 
      pic16_aopGet(AOP(result),0,FALSE,FALSE));
  } else {
    pic16_emitpcomment("multiply variable :%s by variable %s and store in %s", 
      pic16_aopGet(AOP(right),0,FALSE,FALSE), 
      pic16_aopGet(AOP(left),0,FALSE,FALSE), 
      pic16_aopGet(AOP(result),0,FALSE,FALSE));
  }
        
  pic16_genMult16X16_16(left, right,result);
}

/*-----------------------------------------------------------------*/
/* genMultOneLong : 32 bit multiplication                          */
/*-----------------------------------------------------------------*/
static void genMultOneLong (operand *left,
                            operand *right,
                            operand *result)
{
  FENTRY;
  DEBUGpic16_pic16_AopType(__LINE__,left,right,result);
  DEBUGpic16_pic16_AopTypeSign(__LINE__,left,right,result);

  /* (if two literals, the value is computed before)
   * if one literal, literal on the right */
  if (AOP_TYPE(left) == AOP_LIT){
    operand *t = right;
    right = left;
    left = t;
  }

  /* size is checked already == 4 */
//  size = AOP_SIZE(result);

  if (AOP_TYPE(right) == AOP_LIT) {
    pic16_emitpcomment("multiply lit val:%s by variable %s and store in %s", 
        pic16_aopGet(AOP(right),0,FALSE,FALSE), 
        pic16_aopGet(AOP(left),0,FALSE,FALSE), 
        pic16_aopGet(AOP(result),0,FALSE,FALSE));
  } else {
    pic16_emitpcomment("multiply variable :%s by variable %s and store in %s", 
        pic16_aopGet(AOP(right),0,FALSE,FALSE), 
        pic16_aopGet(AOP(left),0,FALSE,FALSE), 
        pic16_aopGet(AOP(result),0,FALSE,FALSE));
  }
        
  pic16_genMult32X32_32(left, right,result);
}



/*-----------------------------------------------------------------*/
/* genMult - generates code for multiplication                     */
/*-----------------------------------------------------------------*/
static void genMult (iCode *ic)
{
  operand *left = IC_LEFT(ic);
  operand *right = IC_RIGHT(ic);
  operand *result= IC_RESULT(ic);   

    FENTRY;
        /* assign the amsops */
        pic16_aopOp (left,ic,FALSE);
        pic16_aopOp (right,ic,FALSE);
        pic16_aopOp (result,ic,TRUE);

        DEBUGpic16_pic16_AopType(__LINE__,left,right,result);

        /* special cases first *
        * both are bits */
        if (AOP_TYPE(left) == AOP_CRY
                && AOP_TYPE(right)== AOP_CRY) {
                genMultbits(left,right,result);
          goto release ;
        }

        /* if both are of size == 1 */
        if(AOP_SIZE(left) == 1
                && AOP_SIZE(right) == 1) {
                genMultOneByte(left,right,result);
          goto release ;
        }

        /* if both are of size == 2 */
        if(AOP_SIZE(left) == 2
                && AOP_SIZE(right) == 2) {
                genMultOneWord(left, right, result);
          goto release;
        }
        
        /* if both are of size == 4 */
        if(AOP_SIZE(left) == 4
                && AOP_SIZE(right) == 4) {
                genMultOneLong(left, right, result);
          goto release;
        }
        
        pic16_emitcode("multiply ","sizes are greater than 4 ... need to insert proper algor.");


        fprintf(stderr, "operand sizes result: %d left: %d right: %d\n", AOP_SIZE(result), AOP_SIZE(left), AOP_SIZE(right));
        /* should have been converted to function call */
        assert(0) ;

release :
        pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
        pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
        pic16_freeAsmop(result,NULL,ic,TRUE); 
}

/*-----------------------------------------------------------------*/
/* genDivbits :- division of bits                                  */
/*-----------------------------------------------------------------*/
static void genDivbits (operand *left, 
                        operand *right, 
                        operand *result)
{
  char *l;

    FENTRY;
    /* the result must be bit */    
    pic16_emitcode("mov","b,%s",pic16_aopGet(AOP(right),0,FALSE,FALSE));
    l = pic16_aopGet(AOP(left),0,FALSE,FALSE);

    MOVA(l);    

    pic16_emitcode("div","ab");
    pic16_emitcode("rrc","a");
    pic16_aopPut(AOP(result),"c",0);
}

/*-----------------------------------------------------------------*/
/* genDivOneByte : 8 bit division                                  */
/*-----------------------------------------------------------------*/
static void genDivOneByte (operand *left,
                           operand *right,
                           operand *result)
{
  sym_link *opetype = operandType(result);
  char *l ;
  symbol *lbl ;
  int size,offset;

        /* result = divident / divisor
         * - divident may be a register or a literal,
         * - divisor may be a register or a literal,
         * so there are 3 cases (literal / literal is optimized
         * by the front-end) to handle.
         * In addition we must handle signed and unsigned, which
         * result in 6 final different cases -- VR */

    FENTRY;
    
    size = AOP_SIZE(result) - 1;
    offset = 1;
    /* signed or unsigned */
    if (SPEC_USIGN(opetype)) {
      pCodeOp *pct1,    /* count */
                *pct2,  /* reste */
                *pct3;  /* temp */
      symbol *label1, *label2, *label3;;


        /* unsigned is easy */

        pct1 = pic16_popGetTempReg(1);
        pct2 = pic16_popGetTempReg(1);
        pct3 = pic16_popGetTempReg(1);
        
        label1 = newiTempLabel(NULL);
        label2 = newiTempLabel(NULL);
        label3 = newiTempLabel(NULL);

        /* the following algorithm is extracted from divuint.c */

        pic16_emitpcode(POC_MOVLW, pic16_popGetLit( 8 ));
        pic16_emitpcode(POC_MOVWF, pic16_pCodeOpCopy( pct1 ));
        
        pic16_emitpcode(POC_CLRF, pic16_pCodeOpCopy( pct2 ));

        pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 0));
        
        pic16_emitpLabel(label1->key);
        
        emitCLRC;
        pic16_emitpcode(POC_RLCF, pic16_pCodeOpCopy( pct2 ));


        emitCLRC;
        pic16_emitpcode(POC_RLCF, pic16_popCopyReg( &pic16_pc_wreg ));
        

        emitSKPNC;
        pic16_emitpcode(POC_INCF, pic16_pCodeOpCopy( pct2 ));
        
        pic16_emitpcode(POC_MOVWF, pic16_pCodeOpCopy( pct3 ));
        pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right), 0));
        
        pic16_emitpcode(POC_CPFSLT, pic16_pCodeOpCopy(pct2));
        pic16_emitpcode(POC_BRA, pic16_popGetLabel(label3->key));
        pic16_emitpcode(POC_BRA, pic16_popGetLabel(label2->key));
        
        pic16_emitpLabel( label3->key );
        pic16_emitpcode(POC_SUBWF, pic16_pCodeOpCopy(pct2));
        pic16_emitpcode(POC_INCF, pic16_pCodeOpCopy(pct3));
        
        

        pic16_emitpLabel(label2->key);
        pic16_emitpcode(POC_MOVFW, pic16_pCodeOpCopy(pct3));
        pic16_emitpcode(POC_DECFSZ, pic16_pCodeOpCopy(pct1));
        pic16_emitpcode(POC_BRA, pic16_popGetLabel( label1->key ));
        
        /* result is in wreg */
        if(AOP_TYPE(result) != AOP_ACC)
                pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 0));

        pic16_popReleaseTempReg( pct3, 1);
        pic16_popReleaseTempReg( pct2, 1);
        pic16_popReleaseTempReg( pct1, 1);

        return ;
    }

    /* signed is a little bit more difficult */

    /* save the signs of the operands */
    l = pic16_aopGet(AOP(left),0,FALSE,FALSE);    
    MOVA(l);    
    pic16_emitcode("xrl","a,%s",pic16_aopGet(AOP(right),0,FALSE,TRUE));
    pic16_emitcode("push","acc"); /* save it on the stack */

    /* now sign adjust for both left & right */
    l =  pic16_aopGet(AOP(right),0,FALSE,FALSE);    
    MOVA(l);       
    lbl = newiTempLabel(NULL);
    pic16_emitcode("jnb","acc.7,%05d_DS_",(lbl->key+100));   
    pic16_emitcode("cpl","a");   
    pic16_emitcode("inc","a");
    pic16_emitcode("","%05d_DS_:",(lbl->key+100));
    pic16_emitcode("mov","b,a");

    /* sign adjust left side */
    l =  pic16_aopGet(AOP(left),0,FALSE,FALSE);    
    MOVA(l);

    lbl = newiTempLabel(NULL);
    pic16_emitcode("jnb","acc.7,%05d_DS_",(lbl->key+100));
    pic16_emitcode("cpl","a");
    pic16_emitcode("inc","a");
    pic16_emitcode("","%05d_DS_:",(lbl->key+100));

    /* now the division */
    pic16_emitcode("div","ab");
    /* we are interested in the lower order
    only */
    pic16_emitcode("mov","b,a");
    lbl = newiTempLabel(NULL);
    pic16_emitcode("pop","acc");   
    /* if there was an over flow we don't 
    adjust the sign of the result */
    pic16_emitcode("jb","ov,%05d_DS_",(lbl->key+100));
    pic16_emitcode("jnb","acc.7,%05d_DS_",(lbl->key+100));
    CLRC;
    pic16_emitcode("clr","a");
    pic16_emitcode("subb","a,b");
    pic16_emitcode("mov","b,a");
    pic16_emitcode("","%05d_DS_:",(lbl->key+100));

    /* now we are done */
    pic16_aopPut(AOP(result),"b",0);
    if(size > 0){
        pic16_emitcode("mov","c,b.7");
        pic16_emitcode("subb","a,acc");   
    }
    while (size--)
        pic16_aopPut(AOP(result),"a",offset++);

}

/*-----------------------------------------------------------------*/
/* genDiv - generates code for division                            */
/*-----------------------------------------------------------------*/
static void genDiv (iCode *ic)
{
    operand *left = IC_LEFT(ic);
    operand *right = IC_RIGHT(ic);
    operand *result= IC_RESULT(ic);   


        /* Division is a very lengthy algorithm, so it is better
         * to call support routines than inlining algorithm.
         * Division functions written here just in case someone
         * wants to inline and not use the support libraries -- VR */

    FENTRY;
    
    /* assign the amsops */
    pic16_aopOp (left,ic,FALSE);
    pic16_aopOp (right,ic,FALSE);
    pic16_aopOp (result,ic,TRUE);

    /* special cases first */
    /* both are bits */
    if (AOP_TYPE(left) == AOP_CRY &&
        AOP_TYPE(right)== AOP_CRY) {
        genDivbits(left,right,result);
        goto release ;
    }

    /* if both are of size == 1 */
    if (AOP_SIZE(left) == 1 &&
        AOP_SIZE(right) == 1 ) {
        genDivOneByte(left,right,result);
        goto release ;
    }

    /* should have been converted to function call */
    assert(0);
release :
    pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(result,NULL,ic,TRUE); 
}

/*-----------------------------------------------------------------*/
/* genModbits :- modulus of bits                                   */
/*-----------------------------------------------------------------*/
static void genModbits (operand *left, 
                        operand *right, 
                        operand *result)
{
  char *l;

    FENTRY;  
    
    werror(W_POSSBUG2, __FILE__, __LINE__);
    /* the result must be bit */    
    pic16_emitcode("mov","b,%s",pic16_aopGet(AOP(right),0,FALSE,FALSE));
    l = pic16_aopGet(AOP(left),0,FALSE,FALSE);

    MOVA(l);       

    pic16_emitcode("div","ab");
    pic16_emitcode("mov","a,b");
    pic16_emitcode("rrc","a");
    pic16_aopPut(AOP(result),"c",0);
}

/*-----------------------------------------------------------------*/
/* genModOneByte : 8 bit modulus                                   */
/*-----------------------------------------------------------------*/
static void genModOneByte (operand *left,
                           operand *right,
                           operand *result)
{
  sym_link *opetype = operandType(result);
  char *l ;
  symbol *lbl ;

    FENTRY;
    werror(W_POSSBUG2, __FILE__, __LINE__);

    /* signed or unsigned */
    if (SPEC_USIGN(opetype)) {
        /* unsigned is easy */
        pic16_emitcode("mov","b,%s", pic16_aopGet(AOP(right),0,FALSE,FALSE));
        l = pic16_aopGet(AOP(left),0,FALSE,FALSE);
        MOVA(l);    
        pic16_emitcode("div","ab");
        pic16_aopPut(AOP(result),"b",0);
        return ;
    }

    /* signed is a little bit more difficult */

    /* save the signs of the operands */
    l = pic16_aopGet(AOP(left),0,FALSE,FALSE);    
    MOVA(l);

    pic16_emitcode("xrl","a,%s",pic16_aopGet(AOP(right),0,FALSE,FALSE));
    pic16_emitcode("push","acc"); /* save it on the stack */

    /* now sign adjust for both left & right */
    l =  pic16_aopGet(AOP(right),0,FALSE,FALSE);    
    MOVA(l);

    lbl = newiTempLabel(NULL);
    pic16_emitcode("jnb","acc.7,%05d_DS_",(lbl->key+100));  
    pic16_emitcode("cpl","a");   
    pic16_emitcode("inc","a");
    pic16_emitcode("","%05d_DS_:",(lbl->key+100));
    pic16_emitcode("mov","b,a"); 

    /* sign adjust left side */
    l =  pic16_aopGet(AOP(left),0,FALSE,FALSE);    
    MOVA(l);

    lbl = newiTempLabel(NULL);
    pic16_emitcode("jnb","acc.7,%05d_DS_",(lbl->key+100));
    pic16_emitcode("cpl","a");   
    pic16_emitcode("inc","a");
    pic16_emitcode("","%05d_DS_:",(lbl->key+100));

    /* now the multiplication */
    pic16_emitcode("div","ab");
    /* we are interested in the lower order
    only */
    lbl = newiTempLabel(NULL);
    pic16_emitcode("pop","acc");   
    /* if there was an over flow we don't 
    adjust the sign of the result */
    pic16_emitcode("jb","ov,%05d_DS_",(lbl->key+100));
    pic16_emitcode("jnb","acc.7,%05d_DS_",(lbl->key+100));
    CLRC ;
    pic16_emitcode("clr","a");
    pic16_emitcode("subb","a,b");
    pic16_emitcode("mov","b,a");
    pic16_emitcode("","%05d_DS_:",(lbl->key+100));

    /* now we are done */
    pic16_aopPut(AOP(result),"b",0);

}

/*-----------------------------------------------------------------*/
/* genMod - generates code for division                            */
/*-----------------------------------------------------------------*/
static void genMod (iCode *ic)
{
  operand *left = IC_LEFT(ic);
  operand *right = IC_RIGHT(ic);
  operand *result= IC_RESULT(ic);  

    FENTRY;
    
    /* assign the amsops */
    pic16_aopOp (left,ic,FALSE);
    pic16_aopOp (right,ic,FALSE);
    pic16_aopOp (result,ic,TRUE);

    /* special cases first */
    /* both are bits */
    if (AOP_TYPE(left) == AOP_CRY &&
        AOP_TYPE(right)== AOP_CRY) {
        genModbits(left,right,result);
        goto release ;
    }

    /* if both are of size == 1 */
    if (AOP_SIZE(left) == 1 &&
        AOP_SIZE(right) == 1 ) {
        genModOneByte(left,right,result);
        goto release ;
    }

    /* should have been converted to function call */
    assert(0);

release :
    pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(result,NULL,ic,TRUE); 
}

/*-----------------------------------------------------------------*/
/* genIfxJump :- will create a jump depending on the ifx           */
/*-----------------------------------------------------------------*/
/*
  note: May need to add parameter to indicate when a variable is in bit space.
*/
static void genIfxJump (iCode *ic, char *jval)
{
  FENTRY;
  
    /* if true label then we jump if condition
    supplied is true */
    if ( IC_TRUE(ic) ) {

        if(strcmp(jval,"a") == 0)
          emitSKPZ;
        else if (strcmp(jval,"c") == 0)
          emitSKPNC;
        else {
          DEBUGpic16_emitcode ("; ***","%d - assuming %s is in bit space",__LINE__,jval);         
          pic16_emitpcode(POC_BTFSC,  pic16_newpCodeOpBit(jval,-1,1, PO_GPR_REGISTER));
        }

        pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_TRUE(ic)->key));
        pic16_emitcode(" goto","_%05d_DS_",IC_TRUE(ic)->key+100 + pic16_labelOffset);

    }
    else {
        /* false label is present */
        if(strcmp(jval,"a") == 0)
          emitSKPNZ;
        else if (strcmp(jval,"c") == 0)
          emitSKPC;
        else {
          DEBUGpic16_emitcode ("; ***","%d - assuming %s is in bit space",__LINE__,jval);         
          pic16_emitpcode(POC_BTFSS,  pic16_newpCodeOpBit(jval,-1,1, PO_GPR_REGISTER));
        }

        pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_FALSE(ic)->key));
        pic16_emitcode(" goto","_%05d_DS_",IC_FALSE(ic)->key+100 + pic16_labelOffset);

    }


    /* mark the icode as generated */
    ic->generated = 1;
}

static void genIfxpCOpJump (iCode *ic, pCodeOp *jop)
{
  FENTRY;
  
    /* if true label then we jump if condition
    supplied is true */
    if ( IC_TRUE(ic) ) {
      DEBUGpic16_emitcode ("; ***","%d - assuming is in bit space",__LINE__);     
      pic16_emitpcode(POC_BTFSC, jop);

      pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_TRUE(ic)->key));
      pic16_emitcode(" goto","_%05d_DS_",IC_TRUE(ic)->key+100 + pic16_labelOffset);

    } else {
      /* false label is present */
      DEBUGpic16_emitcode ("; ***","%d - assuming is in bit space",__LINE__);
      pic16_emitpcode(POC_BTFSS, jop);
          
      pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_FALSE(ic)->key));
      pic16_emitcode(" goto","_%05d_DS_",IC_FALSE(ic)->key+100 + pic16_labelOffset);
    }


    /* mark the icode as generated */
    ic->generated = 1;
}

#if 0
// not needed ATM

/*-----------------------------------------------------------------*/
/* genSkip                                                         */
/*-----------------------------------------------------------------*/
static void genSkip(iCode *ifx,int status_bit)
{
  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
  if(!ifx)
    return;

  if ( IC_TRUE(ifx) ) {
    switch(status_bit) {
    case 'z':
      emitSKPNZ;
      break;

    case 'c':
      emitSKPNC;
      break;

    case 'd':
      emitSKPDC;
      break;

    }

    pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_TRUE(ifx)->key));
    // pic16_emitcode("goto","_%05d_DS_",IC_TRUE(ifx)->key+100+pic16_labelOffset);

  } else {

    switch(status_bit) {

    case 'z':
      emitSKPZ;
      break;

    case 'c':
      emitSKPC;
      break;

    case 'd':
      emitSKPDC;
      break;
    }
    pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_FALSE(ifx)->key));
    // pic16_emitcode("goto","_%05d_DS_",IC_FALSE(ifx)->key+100+pic16_labelOffset);

  }

}
#endif

/*-----------------------------------------------------------------*/
/* genSkipc                                                        */
/*-----------------------------------------------------------------*/
static void genSkipc(resolvedIfx *rifx)
{
  DEBUGpic16_emitcode ("; ***","%s  %d rifx= %p",__FUNCTION__,__LINE__, rifx);
  
  if(!rifx)
    return;

  if(rifx->condition)
    emitSKPNC;
  else
    emitSKPC;

  pic16_emitpcode(POC_GOTO, pic16_popGetLabel(rifx->lbl->key));
  rifx->generated = 1;
}

#if !(USE_SIMPLE_GENCMP)
/*-----------------------------------------------------------------*/
/* genSkipz2                                                       */
/*-----------------------------------------------------------------*/
static void genSkipz2(resolvedIfx *rifx, int invert_condition)
{
  DEBUGpic16_emitcode ("; ***","%s  %d rifx= %p",__FUNCTION__,__LINE__, rifx);
  
  if(!rifx)
    return;

  if( (rifx->condition ^ invert_condition) & 1)
    emitSKPZ;
  else
    emitSKPNZ;

  pic16_emitpcode(POC_GOTO,pic16_popGetLabel(rifx->lbl->key));
  rifx->generated = 1;
}
#endif

#if 0
/*-----------------------------------------------------------------*/
/* genSkipz                                                        */
/*-----------------------------------------------------------------*/
static void genSkipz(iCode *ifx, int condition)
{
  if(!ifx)
    return;

  if(condition)
    emitSKPNZ;
  else
    emitSKPZ;

  if ( IC_TRUE(ifx) )
    pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_TRUE(ifx)->key));
  else
    pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_FALSE(ifx)->key));

  if ( IC_TRUE(ifx) )
    pic16_emitcode("goto","_%05d_DS_",IC_TRUE(ifx)->key+100+pic16_labelOffset);
  else
    pic16_emitcode("goto","_%05d_DS_",IC_FALSE(ifx)->key+100+pic16_labelOffset);

}
#endif

#if !(USE_SIMPLE_GENCMP)
/*-----------------------------------------------------------------*/
/* genSkipCond                                                     */
/*-----------------------------------------------------------------*/
static void genSkipCond(resolvedIfx *rifx,operand *op, int offset, int bit)
{
  if(!rifx)
    return;

  if(rifx->condition)
    pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(op),offset,FALSE,FALSE),bit,0, PO_GPR_REGISTER));
  else
    pic16_emitpcode(POC_BTFSS, pic16_newpCodeOpBit(pic16_aopGet(AOP(op),offset,FALSE,FALSE),bit,0, PO_GPR_REGISTER));


  pic16_emitpcode(POC_GOTO,pic16_popGetLabel(rifx->lbl->key));
  rifx->generated = 1;
}
#endif

#if 0
/*-----------------------------------------------------------------*/
/* genChkZeroes :- greater or less than comparison                 */
/*     For each byte in a literal that is zero, inclusive or the   */
/*     the corresponding byte in the operand with W                */
/*     returns true if any of the bytes are zero                   */
/*-----------------------------------------------------------------*/
static int genChkZeroes(operand *op, int lit,  int size)
{

  int i;
  int flag =1;

  while(size--) {
    i = (lit >> (size*8)) & 0xff;

    if(i==0) {
      if(flag) 
        pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(op),size));
      else
        pic16_emitpcode(POC_IORFW, pic16_popGet(AOP(op),size));
      flag = 0;
    }
  }

  return (flag==0);
}
#endif


/*-----------------------------------------------------------------*/
/* mov2w_regOrLit :- move to WREG either the offset's byte from    */
/*                  aop (if it's NOT a literal) or from lit (if    */
/*                  aop is a literal)                              */
/*-----------------------------------------------------------------*/
void mov2w_regOrLit (asmop *aop, unsigned long lit, int offset) {
  if (aop->type == AOP_LIT) {
    pic16_emitpcode (POC_MOVLW, pic16_popGetLit(lit >> (offset*8)));
  } else {
    pic16_emitpcode (POC_MOVFW, pic16_popGet (aop, offset));
  }
}

/*-----------------------------------------------------------------*/
/* genCmp :- greater or less than comparison                       */
/*-----------------------------------------------------------------*/

#if USE_SIMPLE_GENCMP           /* { */

/* genCmp performs a left < right comparison, stores
 * the outcome in result (if != NULL) and generates
 * control flow code for the ifx (if != NULL).
 *
 * This version leaves in sequences like
 * "B[CS]F STATUS,0; BTFS[CS] STATUS,0"
 * which should be optmized by the peephole
 * optimizer - RN 2005-01-01 */
static void genCmp (operand *left,operand *right,
                    operand *result, iCode *ifx, int sign)
{
  resolvedIfx rIfx;
  int size;
  int offs;
  symbol *templbl;
  operand *dummy;
  unsigned long lit;
  unsigned long mask;
  int performedLt;

  FENTRY;
  
  assert (left && right);
  assert (AOP_SIZE(left) == AOP_SIZE(right));

  size = AOP_SIZE(right) - 1;
  mask = (0x100UL << (size*8)) - 1;
  // in the end CARRY holds "left < right" (performedLt == 1) or "left >= right" (performedLt == 0)
  performedLt = 1;
  templbl = NULL;
  lit = 0;
  
  resolveIfx (&rIfx, ifx);

  /* handle for special cases */
  if(pic16_genCmp_special(left, right, result, ifx, &rIfx, sign))
      return;

  /**********************************************************************
   * handle bits - bit compares are promoted to int compares seemingly! *
   **********************************************************************/
#if 0
  // THIS IS COMPLETELY UNTESTED!
  if (AOP_TYPE(left) == AOP_CRY && AOP_TYPE(right) == AOP_CRY) {
    pCodeOp *pcleft = pic16_popGet(AOP(left), 0);
    pCodeOp *pcright = pic16_popGet(AOP(right), 0);
    assert (pcleft->type == PO_GPR_BIT && pcright->type == PO_GPR_BIT);

    emitSETC;
    // 1 < {0,1} is false --> clear C by skipping the next instruction
    //pic16_emitpcode (POC_BTFSS, pic16_popCopyGPR2Bit (AOP(left),0), PCORB(pcleft)->bit);
    pic16_emitpcode (POC_BTFSS, pic16_popGet (AOP(left), 0));
    // {0,1} < 0 is false --> clear C by NOT skipping the next instruction
    pic16_emitpcode (POC_BTFSS, pic16_popCopyGPR2Bit (pic16_popGet(AOP(right),0), PCORB(pcright)->bit));
    emitCLRC; // only skipped for left=0 && right=1

    goto correct_result_in_carry;
  } // if
#endif

  /*************************************************
   * make sure that left is register (or the like) *
   *************************************************/
  if (!isAOP_REGlike(left)) {
    DEBUGpc ("swapping arguments (AOP_TYPEs %d/%d)", AOP_TYPE(left), AOP_TYPE(right));
    assert (isAOP_LIT(left));
    assert (isAOP_REGlike(right));
    // swap left and right
    // left < right <==> right > left <==> (right >= left + 1)
    lit = (unsigned long)floatFromVal(AOP(left)->aopu.aop_lit);

    if ( (!sign && (lit & mask) == mask) || (sign && (lit & mask) == (mask >> 1)) ) {
      // MAXVALUE < right? always false
      if (performedLt) emitCLRC; else emitSETC;
      goto correct_result_in_carry;
    } // if

    // This fails for lit = 0xFF (unsigned) AND lit = 0x7F (signed),
    // that's why we handled it above.
    lit++;

    dummy = left;
    left = right;
    right = dummy;

    performedLt ^= 1; // instead of "left < right" we check for "right >= left+1, i.e. "right < left+1"
  } else if (isAOP_LIT(right)) {
    lit = (unsigned long)floatFromVal(AOP(right)->aopu.aop_lit);
  } // if

  assert (isAOP_REGlike(left)); // left must be register or the like
  assert (isAOP_REGlike(right) || isAOP_LIT(right)); // right may be register-like or a literal

  /*************************************************
   * special cases go here                         *
   *************************************************/

  if (isAOP_LIT(right)) {
    if (!sign) {
      // unsigned comparison to a literal
      DEBUGpc ("unsigned compare: left %s lit(0x%X=%lu), size=%d", performedLt ? "<" : ">=", lit, lit, size+1);
      if (lit == 0) {
        // unsigned left < 0? always false
        if (performedLt) emitCLRC; else emitSETC;
        goto correct_result_in_carry;
      }
    } else {
      // signed comparison to a literal
      DEBUGpc ("signed compare: left %s lit(0x%X=%ld), size=%d, mask=%x", performedLt ? "<" : ">=", lit, lit, size+1, mask);
      if ((lit & mask) == ((0x80 << (size*8)) & mask)) {
        // signed left < 0x80000000? always false
        if (performedLt) emitCLRC; else emitSETC;
        goto correct_result_in_carry;
      } else if (lit == 0) {
        // compare left < 0; set CARRY if SIGNBIT(left) is set
        if (performedLt) emitSETC; else emitCLRC;
        pic16_emitpcode (POC_BTFSS, pic16_popCopyGPR2Bit(pic16_popGet (AOP(left), size), 7));
        if (performedLt) emitCLRC; else emitSETC;
        goto correct_result_in_carry;
      }
    } // if (!sign)
  } // right is literal

  /*************************************************
   * perform a general case comparison             *
   * make sure we get CARRY==1 <==> left >= right  *
   *************************************************/
  // compare most significant bytes
  //DEBUGpc ("comparing bytes at offset %d", size);
  if (!sign) {
    // unsigned comparison
    mov2w_regOrLit (AOP(right), lit, size);
    pic16_emitpcode (POC_SUBFW, pic16_popGet (AOP(left), size));
  } else {
    // signed comparison
    // (add 2^n to both operands then perform an unsigned comparison)
    if (isAOP_LIT(right)) {
      // left >= LIT <-> LIT-left <= 0 <-> LIT-left == 0 OR !(LIT-left >= 0)
      unsigned char litbyte = (lit >> (8*size)) & 0xFF;

      if (litbyte == 0x80) {
        // left >= 0x80 -- always true, but more bytes to come
        pic16_mov2w (AOP(left), size);
        pic16_emitpcode (POC_XORLW, pic16_popGetLit (0x80)); // set ZERO flag
        emitSETC;
      } else {
        // left >= LIT <-> left + (-LIT) >= 0 <-> left + (0x100-LIT) >= 0x100
        pic16_mov2w (AOP(left), size);
        pic16_emitpcode (POC_ADDLW, pic16_popGetLit (0x80));
        pic16_emitpcode (POC_ADDLW, pic16_popGetLit ((0x100 - (litbyte + 0x80)) & 0x00FF));
      } // if
    } else {
      pCodeOp *pctemp = pic16_popCopyReg(&pic16_pc_prodl);
      //pCodeOp *pctemp = pic16_popGetTempReg(1);
      pic16_mov2w (AOP(left), size);
      pic16_emitpcode (POC_ADDLW, pic16_popGetLit (0x80));
      pic16_emitpcode (POC_MOVWF, pctemp);
      pic16_mov2w (AOP(right), size);
      pic16_emitpcode (POC_ADDLW, pic16_popGetLit (0x80));
      pic16_emitpcode (POC_SUBFW, pctemp);
      //pic16_popReleaseTempReg(pctemp, 1);
    }
  } // if (!sign)

  // compare remaining bytes (treat as unsigned case from above)
  templbl = newiTempLabel ( NULL );
  offs = size;
  while (offs--) {
    //DEBUGpc ("comparing bytes at offset %d", offs);
    pic16_emitpcode (POC_BNZ, pic16_popGetLabel (templbl->key));
    mov2w_regOrLit (AOP(right), lit, offs);
    pic16_emitpcode (POC_SUBFW, pic16_popGet (AOP(left), offs));
  } // while (offs)
  pic16_emitpLabel (templbl->key);
  goto result_in_carry;

result_in_carry:
  
  /****************************************************
   * now CARRY contains the result of the comparison: *
   * SUBWF sets CARRY iff                             *
   * F-W >= 0 <==> F >= W <==> !(F < W)               *
   * (F=left, W=right)                                *
   ****************************************************/

  if (performedLt) {
    if (result && AOP_TYPE(result) != AOP_CRY) {
      // value will be stored
      emitTOGC;
    } else {
      // value wil only be used in the following genSkipc()
      rIfx.condition ^= 1;
    }
  } // if

correct_result_in_carry:

  // assign result to variable (if neccessary)
  if (result && AOP_TYPE(result) != AOP_CRY) {
    //DEBUGpc ("assign result");
    size = AOP_SIZE(result);
    while (size--) {
      pic16_emitpcode (POC_CLRF, pic16_popGet (AOP(result), size));
    } // while
    pic16_emitpcode (POC_RLCF, pic16_popGet (AOP(result), 0));
  } // if (result)

  // perform conditional jump
  if (ifx) {
    //DEBUGpc ("generate control flow");
    genSkipc (&rIfx);
    ifx->generated = 1;
  } // if
}

#elif 1         /* } */
                /* { */
      /* original code */
static void genCmp (operand *left,operand *right,
                    operand *result, iCode *ifx, int sign)
{
  int size; //, offset = 0 ;
  unsigned long lit = 0L,i = 0;
  resolvedIfx rFalseIfx;
  //  resolvedIfx rTrueIfx;
  symbol *truelbl;
  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
/*
  if(ifx) {
    DEBUGpic16_emitcode ("; ***","true ifx is %s",((IC_TRUE(ifx) == NULL) ? "false" : "true"));
    DEBUGpic16_emitcode ("; ***","false ifx is %s",((IC_FALSE(ifx) == NULL) ? "false" : "true"));
  }
*/

  FENTRY;
  
  resolveIfx(&rFalseIfx,ifx);
  truelbl  = newiTempLabel(NULL);
  size = max(AOP_SIZE(left),AOP_SIZE(right));

  DEBUGpic16_pic16_AopType(__LINE__,left,right,result);

#define _swapp

  /* if literal is on the right then swap with left */
  if ((AOP_TYPE(right) == AOP_LIT)) {
    operand *tmp = right ;
    unsigned long mask = (0x100 << (8*(size-1))) - 1;
    lit = (unsigned long)floatFromVal(AOP(right)->aopu.aop_lit);
#ifdef _swapp

    lit = (lit - 1) & mask;
    right = left;
    left = tmp;
    rFalseIfx.condition ^= 1;
#endif

  } else if ((AOP_TYPE(left) == AOP_LIT)) {
    lit = (unsigned long)floatFromVal(AOP(left)->aopu.aop_lit);
  }


  //if(IC_TRUE(ifx) == NULL)
  /* if left & right are bit variables */
  if (AOP_TYPE(left) == AOP_CRY &&
      AOP_TYPE(right) == AOP_CRY ) {
    assert (0 && "bit variables used in genCmp");
    pic16_emitcode("mov","c,%s",AOP(right)->aopu.aop_dir);
    pic16_emitcode("anl","c,/%s",AOP(left)->aopu.aop_dir);
  } else {
    /* subtract right from left if at the
       end the carry flag is set then we know that
       left is greater than right */

    symbol *lbl  = newiTempLabel(NULL);

#if 0
        fprintf(stderr, "%s:%s:%d truelbl: %d\tlbl: %d\n",
                __FILE__, __FUNCTION__, __LINE__, truelbl->key+100+pic16_labelOffset, lbl->key+100+pic16_labelOffset);
#endif

#ifndef _swapp
    if(AOP_TYPE(right) == AOP_LIT) {

      //lit = (unsigned long)floatFromVal(AOP(right)->aopu.aop_lit);

      DEBUGpic16_emitcode(";right lit","%d lit = 0x%x,sign=%d",__LINE__, lit,sign);

      /* special cases */

      if(lit == 0) {

        if(sign != 0) 
          genSkipCond(&rFalseIfx,left,size-1,7);
        else 
          /* no need to compare to 0...*/
          /* NOTE: this is a de-generate compare that most certainly 
           *       creates some dead code. */
          pic16_emitpcode(POC_GOTO,pic16_popGetLabel(rFalseIfx.lbl->key));

        if(ifx) ifx->generated = 1;
        return;

      }
      size--;

      if(size == 0) {
        //i = (lit >> (size*8)) & 0xff;
        DEBUGpic16_emitcode(";right lit","line = %d",__LINE__);
        
        pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),size));

        i = ((0-lit) & 0xff);
        if(sign) {
          if( i == 0x81) { 
            /* lit is 0x7f, all signed chars are less than
             * this except for 0x7f itself */
            pic16_emitpcode(POC_XORLW, pic16_popGetLit(0x7f));
            genSkipz2(&rFalseIfx,0);
          } else {
            pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x80));
            pic16_emitpcode(POC_ADDLW, pic16_popGetLit(i^0x80));
            genSkipc(&rFalseIfx);
          }

        } else {
          if(lit == 1) {
            genSkipz2(&rFalseIfx,1);
          } else {
            pic16_emitpcode(POC_ADDLW, pic16_popGetLit(i));
            genSkipc(&rFalseIfx);
          }
        }

        if(ifx) ifx->generated = 1;
        return;
      }

      /* chars are out of the way. now do ints and longs */


      DEBUGpic16_emitcode(";right lit","line = %d",__LINE__);
        
      /* special cases */

      if(sign) {

        if(lit == 0) {
          genSkipCond(&rFalseIfx,left,size,7);
          if(ifx) ifx->generated = 1;
          return;
        }

        if(lit <0x100) {
          DEBUGpic16_emitcode(";right lit","line = %d signed compare to 0x%x",__LINE__,lit);

          //rFalseIfx.condition ^= 1;
          //genSkipCond(&rFalseIfx,left,size,7);
          //rFalseIfx.condition ^= 1;

          pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(left),size,FALSE,FALSE),7,0, PO_GPR_REGISTER));
          if(rFalseIfx.condition)
            pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(rFalseIfx.lbl->key));
          else
            pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(truelbl->key));

          pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0x100-lit));
          pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(left),0));
          pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),1));

          while(size > 1)
            pic16_emitpcode(POC_IORFW, pic16_popGet(AOP(left),size--));

          if(rFalseIfx.condition) {
            emitSKPZ;
            pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(truelbl->key));

          } else {
            emitSKPNZ;
          }

          genSkipc(&rFalseIfx);
          pic16_emitpLabel(truelbl->key);
          if(ifx) ifx->generated = 1;
          return;

        }

        if(size == 1) {

          if( (lit & 0xff) == 0) {
            /* lower byte is zero */
            DEBUGpic16_emitcode(";right lit","line = %d signed compare to 0x%x",__LINE__,lit);
            i = ((lit >> 8) & 0xff) ^0x80;
            pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),size));
            pic16_emitpcode(POC_ADDLW, pic16_popGetLit( 0x80));
            pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x100-i));
            genSkipc(&rFalseIfx);


            if(ifx) ifx->generated = 1;
            return;

          }
        } else {
          /* Special cases for signed longs */
          if( (lit & 0xffffff) == 0) {
            /* lower byte is zero */
            DEBUGpic16_emitcode(";right lit","line = %d signed compare to 0x%x",__LINE__,lit);
            i = ((lit >> 8*3) & 0xff) ^0x80;
            pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),size));
            pic16_emitpcode(POC_ADDLW, pic16_popGetLit( 0x80));
            pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x100-i));
            genSkipc(&rFalseIfx);


            if(ifx) ifx->generated = 1;
            return;

          }

        }


        if(lit & (0x80 << (size*8))) {
          /* lit is negative */
          DEBUGpic16_emitcode(";right lit","line = %d signed compare to 0x%x",__LINE__,lit);

          //genSkipCond(&rFalseIfx,left,size,7);

          pic16_emitpcode(POC_BTFSS, pic16_newpCodeOpBit(pic16_aopGet(AOP(left),size,FALSE,FALSE),7,0, PO_GPR_REGISTER));

          if(rFalseIfx.condition)
            pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(truelbl->key));
          else
            pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(rFalseIfx.lbl->key));


        } else {
          /* lit is positive */
          DEBUGpic16_emitcode(";right lit","line = %d signed compare to 0x%x",__LINE__,lit);
          pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(left),size,FALSE,FALSE),7,0, PO_GPR_REGISTER));
          if(rFalseIfx.condition)
            pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(rFalseIfx.lbl->key));
          else
            pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(truelbl->key));

        }

        /*
          This works, but is only good for ints.
          It also requires a "known zero" register.
          pic16_emitpcode(POC_MOVLW, pic16_popGetLit(mlit & 0xff));
          pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(left),0));
          pic16_emitpcode(POC_RLCFW,  pic16_popCopyReg(&pic16_pc_kzero));
          pic16_emitpcode(POC_ADDLW, pic16_popGetLit( ((mlit>>8) & 0xff)));
          pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(left),1));
          genSkipc(&rFalseIfx);

          pic16_emitpLabel(truelbl->key);
          if(ifx) ifx->generated = 1;
          return;
        **/
          
        /* There are no more special cases, so perform a general compare */
  
        pic16_emitpcode(POC_MOVLW, pic16_popGetLit((lit >> (size*8)) & 0xff));
        pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(left),size));

        while(size--) {

          pic16_emitpcode(POC_MOVLW, pic16_popGetLit((lit >> (size*8)) & 0xff));
          emitSKPNZ;
          pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(left),size));
        }
        //rFalseIfx.condition ^= 1;
        genSkipc(&rFalseIfx);

        pic16_emitpLabel(truelbl->key);

        if(ifx) ifx->generated = 1;
        return;


      }


      /* sign is out of the way. So now do an unsigned compare */
      DEBUGpic16_emitcode(";right lit","line = %d unsigned compare to 0x%x",__LINE__,lit);


      /* General case - compare to an unsigned literal on the right.*/

      i = (lit >> (size*8)) & 0xff;
      pic16_emitpcode(POC_MOVLW, pic16_popGetLit(i));
      pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(left),size));
      while(size--) {
        i = (lit >> (size*8)) & 0xff;

        if(i) {
          pic16_emitpcode(POC_MOVLW, pic16_popGetLit(i));
          emitSKPNZ;
          pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(left),size));
        } else {
          /* this byte of the lit is zero, 
           *if it's not the last then OR in the variable */
          if(size)
            pic16_emitpcode(POC_IORFW, pic16_popGet(AOP(left),size));
        }
      }


      pic16_emitpLabel(lbl->key);
//      pic16_emitpLabel(truelbl->key);
      //if(emitFinalCheck)
      genSkipc(&rFalseIfx);
      if(sign)
        pic16_emitpLabel(truelbl->key);

      if(ifx) ifx->generated = 1;
      return;


    }
#endif  // _swapp

    if(AOP_TYPE(left) == AOP_LIT) {
      //symbol *lbl = newiTempLabel(NULL);

      //EXPERIMENTAL lit = (unsigned long)(floatFromVal(AOP(left)->aopu.aop_lit));


      DEBUGpic16_emitcode(";left lit","lit = 0x%x,sign=%d",lit,sign);

      /* Special cases */
      if((lit == 0) && (sign == 0)){

        size--;
        pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),size));
        while(size) 
          pic16_emitpcode(POC_IORFW, pic16_popGet(AOP(right),--size));

        genSkipz2(&rFalseIfx,0);
        if(ifx) ifx->generated = 1;
        return;
      }

      if(size==1) {
        /* Special cases */
        lit &= 0xff;
        if(((lit == 0xff) && !sign) || ((lit==0x7f) && sign)) {
          /* degenerate compare can never be true */
          if(rFalseIfx.condition == 0)
            pic16_emitpcode(POC_GOTO,pic16_popGetLabel(rFalseIfx.lbl->key));

          if(ifx) ifx->generated = 1;
          return;
        }

        if(sign) {
          /* signed comparisons to a literal byte */

          int lp1 = (lit+1) & 0xff;

          DEBUGpic16_emitcode(";left lit","line = %d lit = 0x%x",__LINE__,lit);
          switch (lp1) {
          case 0:
            rFalseIfx.condition ^= 1;
            genSkipCond(&rFalseIfx,right,0,7);
            break;
          case 0x7f:
            pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),0));
            pic16_emitpcode(POC_XORLW, pic16_popGetLit(0x7f));
            genSkipz2(&rFalseIfx,1);
            break;
          default:
            pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),0));
            pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x80));
            pic16_emitpcode(POC_ADDLW, pic16_popGetLit(((-(lit+1)) & 0xff) ^ 0x80));
            rFalseIfx.condition ^= 1;
            genSkipc(&rFalseIfx);
            break;
          }
        } else {
          /* unsigned comparisons to a literal byte */

          switch(lit & 0xff ) {
          case 0:
            pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),0));
            genSkipz2(&rFalseIfx,0);
            break;
          case 0x7f:
            rFalseIfx.condition ^= 1;
            genSkipCond(&rFalseIfx,right,0,7);
            break;

          default:
            pic16_emitpcode(POC_MOVLW, pic16_popGetLit((lit+1) & 0xff));
            pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(right),0));
            DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
            rFalseIfx.condition ^= 1;
            if (AOP_TYPE(result) == AOP_CRY)
              genSkipc(&rFalseIfx);
            else {
              pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),0));
              pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result),0));
            }         
            break;
          }
        }

        if(ifx) ifx->generated = 1;
        if ((AOP_TYPE(result) != AOP_CRY) && (AOP_SIZE(result)))
                goto check_carry;
        return;

      } else {

        /* Size is greater than 1 */

        if(sign) {
          int lp1 = lit+1;

          size--;

          if(lp1 == 0) {
            /* this means lit = 0xffffffff, or -1 */


            DEBUGpic16_emitcode(";left lit = -1","line = %d ",__LINE__);
            rFalseIfx.condition ^= 1;
            genSkipCond(&rFalseIfx,right,size,7);
            if(ifx) ifx->generated = 1;

            if ((AOP_TYPE(result) != AOP_CRY) && (AOP_SIZE(result)))
              goto check_carry;

            return;
          }

          if(lit == 0) {
            int s = size;

            if(rFalseIfx.condition) {
              pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(right),size,FALSE,FALSE),7,0, PO_GPR_REGISTER));
              pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(truelbl->key));
            }

            pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),size));
            while(size--)
              pic16_emitpcode(POC_IORFW, pic16_popGet(AOP(right),size));


            emitSKPZ;
            if(rFalseIfx.condition) {
              pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(rFalseIfx.lbl->key));
              pic16_emitpLabel(truelbl->key);
            }else {
              rFalseIfx.condition ^= 1;
              genSkipCond(&rFalseIfx,right,s,7);
            }

            if(ifx) ifx->generated = 1;

            if ((AOP_TYPE(result) != AOP_CRY) && (AOP_SIZE(result)))
              goto check_carry;

            return;
          }

          if((size == 1) &&  (0 == (lp1&0xff))) {
            /* lower byte of signed word is zero */
            DEBUGpic16_emitcode(";left lit","line = %d  0x%x+1 low byte is zero",__LINE__,lit);
            i = ((lp1 >> 8) & 0xff) ^0x80;
            pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),size));
            pic16_emitpcode(POC_ADDLW, pic16_popGetLit( 0x80));
            pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x100-i));

            if ((AOP_TYPE(result) != AOP_CRY) && (AOP_SIZE(result))) {
              emitTOGC;
              if(ifx) ifx->generated = 1;
              goto check_carry;
            } else {
              rFalseIfx.condition ^= 1;
              genSkipc(&rFalseIfx);
              if(ifx) ifx->generated = 1;
            }

            return;
          }

          if(lit & (0x80 << (size*8))) {
            /* Lit is less than zero */
            DEBUGpic16_emitcode(";left lit","line = %d  0x%x is less than 0",__LINE__,lit);
            //rFalseIfx.condition ^= 1;
            //genSkipCond(&rFalseIfx,left,size,7);
            //rFalseIfx.condition ^= 1;
            pic16_emitpcode(POC_BTFSS, pic16_newpCodeOpBit(pic16_aopGet(AOP(right),size,FALSE,FALSE),7,0, PO_GPR_REGISTER));
            //pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(truelbl->key));

            if(rFalseIfx.condition)
              pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(rFalseIfx.lbl->key));
            else
              pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(truelbl->key));


          } else {
            /* Lit is greater than or equal to zero */
            DEBUGpic16_emitcode(";left lit","line = %d  0x%x is greater than 0",__LINE__,lit);
            //rFalseIfx.condition ^= 1;
            //genSkipCond(&rFalseIfx,right,size,7);
            //rFalseIfx.condition ^= 1;

            //pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(right),size,FALSE,FALSE),7,0));
            //pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(rFalseIfx.lbl->key));

            pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(right),size,FALSE,FALSE),7,0, PO_GPR_REGISTER));
            if(rFalseIfx.condition)
              pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(truelbl->key));
            else
              pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(rFalseIfx.lbl->key));

          }

          pic16_emitpcode(POC_MOVLW, pic16_popGetLit((lp1 >> (size*8)) & 0xff));
          pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(right),size));

          while(size--) {

            pic16_emitpcode(POC_MOVLW, pic16_popGetLit((lp1 >> (size*8)) & 0xff));
            emitSKPNZ;
            pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(right),size));
          }
          rFalseIfx.condition ^= 1;
          //rFalseIfx.condition = 1;
          genSkipc(&rFalseIfx);

          pic16_emitpLabel(truelbl->key);

          if(ifx) ifx->generated = 1;


          if ((AOP_TYPE(result) != AOP_CRY) && (AOP_SIZE(result)))
            goto check_carry;

          return;
          // end of if (sign)
        } else {

          /* compare word or long to an unsigned literal on the right.*/


          size--;
          if(lit < 0xff) {
            DEBUGpic16_emitcode ("; ***","%s  %d lit =0x%x < 0xff",__FUNCTION__,__LINE__,lit);
            switch (lit) {
            case 0:
              break; /* handled above */
/*
            case 0xff:
              pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),size));
              while(size--)
                pic16_emitpcode(POC_IORFW, pic16_popGet(AOP(right),size));
              genSkipz2(&rFalseIfx,0);
              break;
*/
            default:
              pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),size));
              while(--size)
                pic16_emitpcode(POC_IORFW, pic16_popGet(AOP(right),size));

              emitSKPZ;
              if(rFalseIfx.condition)
                pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(rFalseIfx.lbl->key));
              else
                pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(truelbl->key));


              pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit+1));
              pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(right),0));

              rFalseIfx.condition ^= 1;
              genSkipc(&rFalseIfx);
            }

            pic16_emitpLabel(truelbl->key);

            if(ifx) ifx->generated = 1;

            if ((AOP_TYPE(result) != AOP_CRY) && (AOP_SIZE(result)))
              goto check_carry;

            return;
          }


          lit++;
          DEBUGpic16_emitcode ("; ***","%s  %d lit =0x%x",__FUNCTION__,__LINE__,lit);
          i = (lit >> (size*8)) & 0xff;

          pic16_emitpcode(POC_MOVLW, pic16_popGetLit(i));
          pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(right),size));

          while(size--) {
            i = (lit >> (size*8)) & 0xff;

            if(i) {
              pic16_emitpcode(POC_MOVLW, pic16_popGetLit(i));
              emitSKPNZ;
              pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(right),size));
            } else {
              /* this byte of the lit is zero, 
               * if it's not the last then OR in the variable */
              if(size)
                pic16_emitpcode(POC_IORFW, pic16_popGet(AOP(right),size));
            }
          }


          pic16_emitpLabel(lbl->key);

          rFalseIfx.condition ^= 1;

          genSkipc(&rFalseIfx);
        }

        if(sign)
          pic16_emitpLabel(truelbl->key);
        if(ifx) ifx->generated = 1;

            if ((AOP_TYPE(result) != AOP_CRY) && (AOP_SIZE(result)))
              goto check_carry;

        return;
      }
    }
    /* Compare two variables */

    DEBUGpic16_emitcode(";sign","%d",sign);

    size--;
    if(sign) {
      /* Sigh. thus sucks... */
      if(size) {
        pCodeOp *pctemp;
        
        pctemp = pic16_popGetTempReg(1);
        pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),size));
        pic16_emitpcode(POC_MOVWF, pctemp);             //pic16_popRegFromIdx(pic16_Gstack_base_addr));
        pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0x80));
        pic16_emitpcode(POC_XORWF, pctemp);             //pic16_popRegFromIdx(pic16_Gstack_base_addr));
        pic16_emitpcode(POC_XORFW, pic16_popGet(AOP(right),size));
        pic16_emitpcode(POC_SUBFW, pctemp);             //pic16_popRegFromIdx(pic16_Gstack_base_addr));
        pic16_popReleaseTempReg(pctemp, 1);
      } else {
        /* Signed char comparison */
        /* Special thanks to Nikolai Golovchenko for this snippet */
        pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),0));
        pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(left),0));
        pic16_emitpcode(POC_RRCFW,  pic16_popGet(AOP(left),0)); /* could be any register */
        pic16_emitpcode(POC_XORFW, pic16_popGet(AOP(left),0));
        pic16_emitpcode(POC_XORFW, pic16_popGet(AOP(right),0));
        pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x80));

        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
        genSkipc(&rFalseIfx);
          
        if(ifx) ifx->generated = 1;

            if ((AOP_TYPE(result) != AOP_CRY) && (AOP_SIZE(result)))
              goto check_carry;

        return;
      }

    } else {

      pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),size));
      pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(left),size));
    }


    /* The rest of the bytes of a multi-byte compare */
    while (size) {

      emitSKPZ;
      pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(lbl->key));
      size--;

      pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),size));
      pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(left),size));


    }

    pic16_emitpLabel(lbl->key);

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    if ((AOP_TYPE(result) == AOP_CRY && AOP_SIZE(result)) || 
        (AOP_TYPE(result) == AOP_REG)) {
      pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result),0));
    } else {
      genSkipc(&rFalseIfx);
    }         
    //genSkipc(&rFalseIfx);
    if(ifx) ifx->generated = 1;


            if ((AOP_TYPE(result) != AOP_CRY) && (AOP_SIZE(result)))
              goto check_carry;

    return;

  }

check_carry:
  if ((AOP_TYPE(result) != AOP_CRY) 
        && AOP_SIZE(result)) {
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    if(!ifx)pic16_emitpLabel( rFalseIfx.lbl->key );

    pic16_outBitC(result);
  } else {
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    /* if the result is used in the next
       ifx conditional branch then generate
       code a little differently */
    if (ifx )
      genIfxJump (ifx,"c");
    else
      pic16_outBitC(result);
    /* leave the result in acc */
  }

}

#elif 0 /* VR version of genCmp() */    /* } else { */

/* check all condition and return appropriate instruction, POC_CPFSGT or POC_CPFFSLT */
static int selectCompareOp(resolvedIfx *rIfx, iCode *ifx,
        operand *result, int offset, int invert_op)
{
  /* add code here */
  
  /* check condition, > or < ?? */
  if(rIfx->condition != 0)invert_op ^= 1;
  
  if(ifx && IC_FALSE(ifx))invert_op ^= 1;

  if(!ifx)invert_op ^= 1;

  DEBUGpic16_emitcode("; +++", "%s:%d %s] rIfx->condition= %d, ifx&&IC_FALSE(ifx)= %d, invert_op = %d",
      __FILE__, __LINE__, __FUNCTION__, rIfx->condition, (ifx && IC_FALSE(ifx)), invert_op);
  
  /* do selection */
  if(!invert_op)return POC_CPFSGT;
  else return POC_CPFSLT;
}

static int compareAopfirstpass=1;

static void compareAop(resolvedIfx *resIfx, iCode *ifx, symbol *falselbl,
            operand *oper, int offset, operand *result,
            int sign, int invert_op, pCodeOp *pcop, pCodeOp *pcop2,
            symbol *tlbl)
{
  int op;
  symbol *truelbl;

  /* invert if there is a result to be loaded, in order to fit,
   * SETC/CLRC sequence */
  if(AOP_SIZE(result))invert_op ^= 1;

//  if(sign && !offset)invert_op ^= 1;
  
//  if(sign)invert_op ^= 1;
  
  op = selectCompareOp(resIfx, ifx, result, offset, invert_op);

  if(AOP_SIZE(result) && compareAopfirstpass) {
    if(!ifx) {
      if(pcop2)
        pic16_emitpcode(POC_SETF, pcop2);
      else
        emitSETC;
    } else {
      if(pcop2)
        pic16_emitpcode(POC_CLRF, pcop2);
      else
        emitCLRC;
    }
  }

  compareAopfirstpass = 0;

      /* there is a bug when comparing operands with size > 1,
       * because higher bytes can be equal and test should be performed
       * to the next lower byte, current algorithm, considers operands
       * inequal in these cases! -- VR 20041107 */

    
  if(pcop)
    pic16_emitpcode(op, pcop);
  else
    pic16_emitpcode(op, pic16_popGet(AOP(oper), offset));


  if((!sign || !offset) && AOP_SIZE(result)) {
    if(!ifx) {
      if(pcop2)
        pic16_emitpcode(POC_CLRF, pcop2);
        else
        emitCLRC;
    } else {
      if(pcop2)
        pic16_emitpcode(POC_SETF, pcop2);
      else
        emitSETC;
    }
    
    /* don't emit final branch (offset == 0) */
    if(offset) {

      if(pcop2)
        pic16_emitpcode(POC_RRCF, pcop2);

      pic16_emitpcode(POC_BNC, pic16_popGetLabel(falselbl->key));
    }
  } else {
    if((ifx && (IC_TRUE(ifx)!=NULL)) || (sign && !offset)) {
      DEBUGpic16_emitcode ("; +++","%s: %d: ifx = %p, IC_TRUE(ifx) = %d, sign = %d, offset = %d",
            __FUNCTION__, __LINE__, ifx, (ifx&&IC_TRUE(ifx)), sign, offset);

      truelbl = newiTempLabel( NULL );
      pic16_emitpcode(POC_BRA, pic16_popGetLabel(truelbl->key));
      if((!ifx || !IC_TRUE(ifx)) && (sign && !offset))
        pic16_emitpcode(POC_GOTO, pic16_popGetLabel(tlbl->key));
      else
        pic16_emitpcode(POC_GOTO, pic16_popGetLabel(resIfx->lbl->key));
      pic16_emitpLabel(truelbl->key);
    } else {
      pic16_emitpcode(POC_GOTO, pic16_popGetLabel(resIfx->lbl->key));
    }
  }
}

static void genCmp (operand *left, operand *right,
                    operand *result, iCode *ifx, int sign)
{
  int size, cmpop=1;
  long lit = 0L;
  resolvedIfx rFalseIfx;
  symbol *falselbl, *tlbl;

    FENTRY;
    
    DEBUGpic16_pic16_AopType(__LINE__,left,right,result);

    resolveIfx(&rFalseIfx, ifx);
    size = max(AOP_SIZE(left), AOP_SIZE(right));
    
    /* if left & right are bit variables */
    if(AOP_TYPE(left) == AOP_CRY
      && AOP_TYPE(right) == AOP_CRY ) {

        pic16_emitcode("mov","c,%s",AOP(right)->aopu.aop_dir);
        pic16_emitcode("anl","c,/%s",AOP(left)->aopu.aop_dir);
        
        werror(W_POSSBUG2, __FILE__, __LINE__);
        exit(-1);
    }
    
    /* if literal is on the right then swap with left */
    if((AOP_TYPE(right) == AOP_LIT)) {
      operand *tmp = right ;
//      unsigned long mask = (0x100 << (8*(size-1))) - 1;

        lit = /*(unsigned long)*/floatFromVal(AOP(right)->aopu.aop_lit);

//      lit = (lit - 1) & mask;
        right = left;
        left = tmp;
        rFalseIfx.condition ^= 1;               /* reverse compare */
    } else
    if ((AOP_TYPE(left) == AOP_LIT)) {
      /* float compares are handled by support functions */
      lit = /*(unsigned long)*/floatFromVal(AOP(left)->aopu.aop_lit);
    }

    /* actual comparing algorithm */
//    size = AOP_SIZE( right );

    falselbl = newiTempLabel( NULL );
    if(AOP_TYPE(left) == AOP_LIT) {
      /* compare to literal */
      DEBUGpic16_emitcode ("; ***","%s: %d: compare to literal", __FUNCTION__, __LINE__);
      
      if(sign) {
        pCodeOp *pct, *pct2;
        symbol *tlbl1;

        /* signed compare */
        DEBUGpic16_emitcode ("; ***","%s: %d: signed compare", __FUNCTION__, __LINE__);

        pct = pic16_popCopyReg(&pic16_pc_prodl);
        pct2 = pic16_popCopyReg(&pic16_pc_prodh);
        tlbl = newiTempLabel( NULL );
        
        /* first compare signs:
         *  a. if both are positive, compare just like unsigned
         *  b. if both are negative, invert cmpop, compare just like unsigned
         *  c. if different signs, determine the result directly */

        size--;

#if 1
        /* { */
        tlbl1 = newiTempLabel( NULL );
//        pic16_emitpcode(POC_RLCFW, pic16_popGet( AOP(right), size));  /* move sign to carry */

        if(lit > 0) {

          /* literal is zero or positive:
           *  a. if carry is zero, too, continue compare,
           *  b. if carry is set, then continue depending on cmpop ^ condition:
           *    1. '<' return false (literal < variable),
           *    2. '>' return true (literal > variable) */
//          pic16_emitpcode(POC_BNC, pic16_popGetLabel( tlbl1->key ));
          pic16_emitpcode(POC_BTFSC, pic16_popCopyGPR2Bit(pic16_popGet(AOP(right), size), 7));
          
          
          if(cmpop ^ rFalseIfx.condition)pic16_emitpcode(POC_GOTO, pic16_popGetLabel( tlbl->key ));
          else pic16_emitpcode(POC_GOTO, pic16_popGetLabel( rFalseIfx.lbl->key ));
        } else 
        if(lit < 0) {
          
          /* literal is negative:
           *  a. if carry is set, too, continue compare,
           *  b. if carry is zero, then continue depending on cmpop ^ condition:
           *    1. '<' return true (literal < variable),
           *    2. '>' return false (literal > variable) */
//          pic16_emitpcode(POC_BC, pic16_popGetLabel( tlbl1->key ));
          pic16_emitpcode(POC_BTFSS, pic16_popCopyGPR2Bit(pic16_popGet(AOP(right), size), 7));
          
          if(!(cmpop ^ rFalseIfx.condition))pic16_emitpcode(POC_GOTO, pic16_popGetLabel( tlbl->key ));
          else pic16_emitpcode(POC_GOTO, pic16_popGetLabel( rFalseIfx.lbl->key));
        }
#if 1
        else {
          /* lit == 0 */
          pic16_emitpcode(POC_BTFSC, pic16_popCopyGPR2Bit(pic16_popGet(AOP(right), size), 7));
          
          if(!(cmpop ^ rFalseIfx.condition))pic16_emitpcode(POC_GOTO, pic16_popGetLabel( tlbl->key ));
          else pic16_emitpcode(POC_GOTO, pic16_popGetLabel( rFalseIfx.lbl->key));
        }
#endif
        
        
        pic16_emitpLabel( tlbl1->key );
#endif  /* } */

        compareAopfirstpass=1;
//        pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0x80));
//        pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(right), size));
//        pic16_emitpcode(POC_MOVWF, pct);

//        pic16_emitpcode(POC_MOVLW, pic16_popGetLit(BYTEofLONG(lit, size) + 0x80));
        pic16_emitpcode(POC_MOVLW, pic16_popGetLit(BYTEofLONG(lit, size)));
//        compareAop(&rFalseIfx, ifx, falselbl, right, size, result, sign, 1, pct, pct2, tlbl);
        compareAop(&rFalseIfx, ifx, falselbl, right, size, result, sign, 1, NULL, pct2, tlbl);

        /* generic case */        
          while( size-- ) {
//            pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0x80));
//            pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0x0));
//            pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(right), size));
//            pic16_emitpcode(POC_MOVWF, pct);

//            pic16_emitpcode(POC_MOVLW, pic16_popGetLit(BYTEofLONG(lit, size) + 0x80));
            pic16_emitpcode(POC_MOVLW, pic16_popGetLit(BYTEofLONG(lit, size) + 0x0));
            compareAop(&rFalseIfx, ifx, falselbl, right, size, result, sign, 1, NULL, pct2, tlbl);
//            compareAop(&rFalseIfx, ifx, falselbl, right, size, result, sign, 1, pct, pct2, tlbl);
//            compareAop(&rFalseIfx, ifx, falselbl, right, size, result, sign, 0, pct, pct2, tlbl);
          }
        
        if(ifx)ifx->generated = 1;

        if(AOP_SIZE(result)) {
          pic16_emitpLabel(tlbl->key);
          pic16_emitpLabel(falselbl->key);
          pic16_outBitOp( result, pct2 );
        } else {
          pic16_emitpLabel(tlbl->key);
        }
      } else {

        /* unsigned compare */      
        DEBUGpic16_emitcode ("; ***","%s: %d: unsigned compare", __FUNCTION__, __LINE__);
    
        compareAopfirstpass=1;
        while(size--) {
          
          pic16_emitpcode(POC_MOVLW, pic16_popGetLit(BYTEofLONG(lit, size)));
          compareAop(&rFalseIfx, ifx, falselbl, right, size, result, sign, 1, NULL, NULL, NULL);

        }
        if(ifx)ifx->generated = 1;

        if(AOP_SIZE(result)) {
          pic16_emitpLabel(falselbl->key);
          pic16_outBitC( result );
        }

      }
    } else {
      /* compare registers */
      DEBUGpic16_emitcode ("; ***","%s: %d: compare registers", __FUNCTION__, __LINE__);


      if(sign) {
        pCodeOp *pct, *pct2;
        
        /* signed compare */
        DEBUGpic16_emitcode ("; ***","%s: %d: signed compare", __FUNCTION__, __LINE__);

        pct = pic16_popCopyReg(&pic16_pc_prodl);        /* first temporary register */
        pct2 = pic16_popCopyReg(&pic16_pc_prodh);       /* second temporary register */
        tlbl = newiTempLabel( NULL );
        
        compareAopfirstpass=1;

        size--;
        pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right), size));
//        pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x80));
        pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x0));
        pic16_emitpcode(POC_MOVWF, pct);

        pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), size));
//        pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x80));
        pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x0));

        /* WREG already holds left + 0x80 */
        compareAop(&rFalseIfx, ifx, falselbl, right, size, result, sign, 1, pct, pct2, tlbl);
        
        while( size-- ) {
          pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right), size));
//          pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x80));
          pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x0));
          pic16_emitpcode(POC_MOVWF, pct);
                
          pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), size));
//          pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x80));
          pic16_emitpcode(POC_ADDLW, pic16_popGetLit(0x0));

          /* WREG already holds left + 0x80 */
          compareAop(&rFalseIfx, ifx, falselbl, right, size, result, sign, 1, pct, pct2, tlbl);
//          compareAop(&rFalseIfx, ifx, falselbl, right, size, result, sign, 0, pct, pct2, tlbl);
        }
        
        if(ifx)ifx->generated = 1;

        if(AOP_SIZE(result)) {
          pic16_emitpLabel(tlbl->key);
          pic16_emitpLabel(falselbl->key);
          pic16_outBitOp( result, pct2 );
        } else {
          pic16_emitpLabel(tlbl->key);
        }

      } else {
        /* unsigned compare */      
        DEBUGpic16_emitcode ("; ***","%s: %d: unsigned compare", __FUNCTION__, __LINE__);

        compareAopfirstpass=1;
        while(size--) {
          
          pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), size));
          compareAop(&rFalseIfx, ifx, falselbl, right, size, result, sign, 1, NULL, NULL, NULL);

        }

        if(ifx)ifx->generated = 1;
        if(AOP_SIZE(result)) {

          pic16_emitpLabel(falselbl->key);
          pic16_outBitC( result );
        }

      }
    }
}

#endif  /* } */



/*-----------------------------------------------------------------*/
/* genCmpGt :- greater than comparison                             */
/*-----------------------------------------------------------------*/
static void genCmpGt (iCode *ic, iCode *ifx)
{
  operand *left, *right, *result;
  sym_link *letype , *retype;
  int sign ;

    FENTRY;
    
    left = IC_LEFT(ic);
    right= IC_RIGHT(ic);
    result = IC_RESULT(ic);

    letype = getSpec(operandType(left));
    retype =getSpec(operandType(right));
    sign =  !(SPEC_USIGN(letype) | SPEC_USIGN(retype));
    /* assign the amsops */
    pic16_aopOp (left,ic,FALSE);
    pic16_aopOp (right,ic,FALSE);
    pic16_aopOp (result,ic,TRUE);

    genCmp(right, left, result, ifx, sign);

    pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(result,NULL,ic,TRUE); 
}

/*-----------------------------------------------------------------*/
/* genCmpLt - less than comparisons                                */
/*-----------------------------------------------------------------*/
static void genCmpLt (iCode *ic, iCode *ifx)
{
  operand *left, *right, *result;
  sym_link *letype , *retype;
  int sign ;

    FENTRY;

    left = IC_LEFT(ic);
    right= IC_RIGHT(ic);
    result = IC_RESULT(ic);

    letype = getSpec(operandType(left));
    retype =getSpec(operandType(right));
    sign =  !(SPEC_USIGN(letype) | SPEC_USIGN(retype));

    /* assign the amsops */
    pic16_aopOp (left,ic,FALSE);
    pic16_aopOp (right,ic,FALSE);
    pic16_aopOp (result,ic,TRUE);

    genCmp(left, right, result, ifx, sign);

    pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(result,NULL,ic,TRUE); 
}

#if 0
// not needed ATM
// FIXME reenable literal optimisation when the pic16 port is stable

/*-----------------------------------------------------------------*/
/* genc16bit2lit - compare a 16 bit value to a literal             */
/*-----------------------------------------------------------------*/
static void genc16bit2lit(operand *op, int lit, int offset)
{
  int i;

  DEBUGpic16_emitcode ("; ***","%s  %d, lit = %d",__FUNCTION__,__LINE__,lit);
  if( (lit&0xff) == 0) 
    i=1;
  else
    i=0;

  switch( BYTEofLONG(lit,i)) { 
  case 0:
    pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(op),offset+i));
    break;
  case 1:
    pic16_emitpcode(POC_DECFW,pic16_popGet(AOP(op),offset+i));
    break;
  case 0xff:
    pic16_emitpcode(POC_INCFW,pic16_popGet(AOP(op),offset+i));
    break;
  default:
    pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(op),offset+i));
    pic16_emitpcode(POC_XORLW,pic16_popGetLit(BYTEofLONG(lit,i)));
  }

  i ^= 1;

  switch( BYTEofLONG(lit,i)) { 
  case 0:
    pic16_emitpcode(POC_IORFW,pic16_popGet(AOP(op),offset+i));
    break;
  case 1:
    emitSKPNZ;
    pic16_emitpcode(POC_DECFW,pic16_popGet(AOP(op),offset+i));
    break;
  case 0xff:
    emitSKPNZ;
    pic16_emitpcode(POC_INCFW,pic16_popGet(AOP(op),offset+i));
    break;
  default:
    pic16_emitpcode(POC_MOVLW,pic16_popGetLit(BYTEofLONG(lit,i)));
    emitSKPNZ;
    pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(op),offset+i));

  }

}
#endif

#if 0
// not needed ATM
/*-----------------------------------------------------------------*/
/* gencjneshort - compare and jump if not equal                    */
/*-----------------------------------------------------------------*/
static void gencjne(operand *left, operand *right, operand *result, iCode *ifx)
{
  int size = max(AOP_SIZE(left),AOP_SIZE(right));
  int offset = 0;
  int res_offset = 0;  /* the result may be a different size then left or right */
  int res_size = AOP_SIZE(result);
  resolvedIfx rIfx;
  symbol *lbl, *lbl_done;

  unsigned long lit = 0L;
  int preserve_result = 0; /* don't touch result before we are done, if left/right == result */

  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
  DEBUGpic16_pic16_AopType(__LINE__,left,right,result);
  if(result)
    DEBUGpic16_emitcode ("; ***","%s  %d result is not null",__FUNCTION__,__LINE__);
  resolveIfx(&rIfx,ifx);
  lbl =  newiTempLabel(NULL);
  lbl_done =  newiTempLabel(NULL);


  /* if the left side is a literal or 
     if the right is in a pointer register and left 
     is not */
  if ((AOP_TYPE(left) == AOP_LIT) || 
      (IS_AOP_PREG(right) && !IS_AOP_PREG(left))) {
    operand *t = right;
    right = left;
    left = t;
  }
  if(AOP_TYPE(right) == AOP_LIT)
    lit = (unsigned long)floatFromVal(AOP(right)->aopu.aop_lit);

  if ( regsInCommon(left, result) || regsInCommon(right, result) )
    preserve_result = 1;

  if(result && !preserve_result)
    {
      int i;
      for(i = 0; i < AOP_SIZE(result); i++)
        pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),i));
    }


  /* if the right side is a literal then anything goes */
  if (AOP_TYPE(right) == AOP_LIT &&
      AOP_TYPE(left) != AOP_DIR ) {
    switch(size) {
    case 2:
      genc16bit2lit(left, lit, 0);
      emitSKPZ;
      pic16_emitpcode(POC_GOTO,pic16_popGetLabel(lbl->key));
      break;
    default:
      DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
      while (size--) {
        if(lit & 0xff) {
          pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offset));
          pic16_emitpcode(POC_XORLW,pic16_popGetLit(lit & 0xff));
        } else {
          pic16_emitpcode(POC_MOVF,pic16_popGet(AOP(left),offset));
        }

        emitSKPZ;
        pic16_emitpcode(POC_GOTO,pic16_popGetLabel(lbl->key));
        offset++;
        if(res_offset < res_size-1)
          res_offset++;
        lit >>= 8;
      }
      break;
    }
  }

  /* if the right side is in a register or in direct space or
     if the left is a pointer register & right is not */    
  else if (AOP_TYPE(right) == AOP_REG ||
           AOP_TYPE(right) == AOP_DIR || 
           (AOP_TYPE(left) == AOP_DIR && AOP_TYPE(right) == AOP_LIT) ||
           (IS_AOP_PREG(left) && !IS_AOP_PREG(right))) {
    //int lbl_key = (rIfx.condition) ? rIfx.lbl->key : lbl->key;
    int lbl_key = lbl->key;

    if(result) {
      // pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),res_offset));
      //pic16_emitpcode(POC_INCF,pic16_popGet(AOP(result),res_offset));
    }else {
      DEBUGpic16_emitcode ("; ***","%s  %d -- ERROR",__FUNCTION__,__LINE__);
      fprintf(stderr, "%s  %d error - expecting result to be non_null\n",
              __FUNCTION__,__LINE__);
      return;
    }
   
/*     switch(size) { */
/*     case 2: */
/*       genc16bit2lit(left, lit, 0); */
/*       emitSKPNZ; */
/*       pic16_emitpcode(POC_GOTO,pic16_popGetLabel(lbl->key)); */
/*       break; */
/*     default: */
    while (size--) {
      int emit_skip=1;
      if((AOP_TYPE(left) == AOP_DIR) && 
         ((AOP_TYPE(right) == AOP_REG) || (AOP_TYPE(right) == AOP_DIR))) {

        pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offset));
        pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(right),offset));

      } else if((AOP_TYPE(left) == AOP_DIR) && (AOP_TYPE(right) == AOP_LIT)){
            
        switch (lit & 0xff) {
        case 0:
          pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offset));
          break;
        case 1:
          pic16_emitpcode(POC_DECFSZW,pic16_popGet(AOP(left),offset));
          //pic16_emitpcode(POC_INCF,pic16_popGet(AOP(result),res_offset));
          pic16_emitpcode(POC_GOTO,pic16_popGetLabel(lbl->key));
          emit_skip=0;
          break;
        case 0xff:
          pic16_emitpcode(POC_INCFSZW,pic16_popGet(AOP(left),offset));
          //pic16_emitpcode(POC_INCF,pic16_popGet(AOP(result),res_offset));
          //pic16_emitpcode(POC_INCFSZW,pic16_popGet(AOP(left),offset));
          pic16_emitpcode(POC_GOTO,pic16_popGetLabel(lbl_key));
          emit_skip=0;
          break;
        default:
          pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offset));
          pic16_emitpcode(POC_XORLW,pic16_popGetLit(lit & 0xff));
        }
        lit >>= 8;

      } else {
        pic16_emitpcode(POC_MOVF,pic16_popGet(AOP(left),offset));
      }
      if(emit_skip) {
        if(AOP_TYPE(result) == AOP_CRY) {
          pic16_emitcode(";***","%s  %d",__FUNCTION__,__LINE__);
          if(rIfx.condition)
            emitSKPNZ;
          else
            emitSKPZ;
          pic16_emitpcode(POC_GOTO,pic16_popGetLabel(rIfx.lbl->key));
        } else {
          /* fix me. probably need to check result size too */
          //pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),0));
          if(rIfx.condition)
            emitSKPZ;
          else
            emitSKPNZ;
          pic16_emitpcode(POC_GOTO,pic16_popGetLabel(lbl_key));
          //pic16_emitpcode(POC_INCF,pic16_popGet(AOP(result),res_offset));
        }
        if(ifx)
          ifx->generated=1;
      }
      emit_skip++;
      offset++;
      if(res_offset < res_size-1)
        res_offset++;
    }
/*       break; */
/*     } */
  } else if(AOP_TYPE(right) == AOP_REG &&
            AOP_TYPE(left) != AOP_DIR){

    while(size--) {
      pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offset));
      pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(right),offset));
      pic16_emitcode(";***","%s  %d",__FUNCTION__,__LINE__);
      if(rIfx.condition)
        emitSKPNZ;
      else
        emitSKPZ;
      pic16_emitpcode(POC_GOTO,pic16_popGetLabel(rIfx.lbl->key));
      offset++;
      if(res_offset < res_size-1)
        res_offset++;
    }
      
  }else{
    /* right is a pointer reg need both a & b */
    while(size--) {
      char *l = pic16_aopGet(AOP(left),offset,FALSE,FALSE);
      if(strcmp(l,"b"))
        pic16_emitcode("mov","b,%s",l);
      MOVA(pic16_aopGet(AOP(right),offset,FALSE,FALSE));
      pic16_emitcode("cjne","a,b,%05d_DS_",lbl->key+100);    
      offset++;
    }
  }

  if(result && preserve_result)
    {
      int i;
      for(i = 0; i < AOP_SIZE(result); i++)
        pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),i));
    }

  pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result), 0));

  if(result && preserve_result)
    pic16_emitpcode(POC_GOTO,pic16_popGetLabel(lbl_done->key));

  if(!rIfx.condition)
    pic16_emitpcode(POC_GOTO,pic16_popGetLabel(rIfx.lbl->key));

  pic16_emitpLabel(lbl->key);

  if(result && preserve_result)
    {
      int i;
      for(i = 0; i < AOP_SIZE(result); i++)
        pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),i));

      pic16_emitpLabel(lbl_done->key);
   }

  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

  if(ifx)
    ifx->generated = 1;
}
#endif

#if 0
/*-----------------------------------------------------------------*/
/* gencjne - compare and jump if not equal                         */
/*-----------------------------------------------------------------*/
static void gencjne(operand *left, operand *right, iCode *ifx)
{
    symbol *tlbl  = newiTempLabel(NULL);

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    gencjneshort(left, right, lbl);

    pic16_emitcode("mov","a,%s",one);
    pic16_emitcode("sjmp","%05d_DS_",tlbl->key+100);
    pic16_emitcode("","%05d_DS_:",lbl->key+100);
    pic16_emitcode("clr","a");
    pic16_emitcode("","%05d_DS_:",tlbl->key+100);

    pic16_emitpLabel(lbl->key);
    pic16_emitpLabel(tlbl->key);

}
#endif


/*-----------------------------------------------------------------*/
/* is_LitOp - check if operand has to be treated as literal        */
/*-----------------------------------------------------------------*/
static bool is_LitOp(operand *op)
{
  return ((AOP_TYPE(op) == AOP_LIT)
      || ( (AOP_TYPE(op) == AOP_PCODE)
          && ( (AOP(op)->aopu.pcop->type == PO_LITERAL)
              || (AOP(op)->aopu.pcop->type == PO_IMMEDIATE) )));
}

/*-----------------------------------------------------------------*/
/* is_LitAOp - check if operand has to be treated as literal        */
/*-----------------------------------------------------------------*/
static bool is_LitAOp(asmop *aop)
{
  return ((aop->type == AOP_LIT)
      || ( (aop->type == AOP_PCODE)
          && ( (aop->aopu.pcop->type == PO_LITERAL)
              || (aop->aopu.pcop->type == PO_IMMEDIATE) )));
}



/*-----------------------------------------------------------------*/
/* genCmpEq - generates code for equal to                          */
/*-----------------------------------------------------------------*/
static void genCmpEq (iCode *ic, iCode *ifx)
{
  operand *left, *right, *result;
  symbol *falselbl = newiTempLabel(NULL);
  symbol *donelbl = newiTempLabel(NULL);

  int preserve_result = 0;
  int generate_result = 0;
  int i=0;
  unsigned long lit = -1;

  FENTRY;
  
  pic16_aopOp((left=IC_LEFT(ic)),ic,FALSE);
  pic16_aopOp((right=IC_RIGHT(ic)),ic,FALSE);
  pic16_aopOp((result=IC_RESULT(ic)),ic,TRUE);
 
  DEBUGpic16_pic16_AopType(__LINE__,left,right,result);

  if( (AOP_TYPE(right) == AOP_CRY) || (AOP_TYPE(left) == AOP_CRY) )
    {
      werror(W_POSSBUG2, __FILE__, __LINE__);
      DEBUGpic16_emitcode ("; ***","%s  %d -- ERROR",__FUNCTION__,__LINE__);
      fprintf(stderr, "%s  %d error - left/right CRY operands not supported\n",__FUNCTION__,__LINE__);
      goto release;
    }

  if (is_LitOp(left) || (AOP_TYPE(right) == AOP_ACC))
    {
      operand *tmp = right ;
      right = left;
      left = tmp;
    }

  if (AOP_TYPE(right) == AOP_LIT) {
    lit = (unsigned long) floatFromVal (AOP(right)->aopu.aop_lit);
  }

  if ( regsInCommon(left, result) || regsInCommon(right, result) )
    preserve_result = 1;

  if(result && AOP_SIZE(result))
    generate_result = 1;

  if(generate_result && !preserve_result)
    {
      for(i = 0; i < AOP_SIZE(result); i++)
        pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),i));
    }

  assert( AOP_SIZE(left) == AOP_SIZE(right) );
  for(i=0; i < AOP_SIZE(left); i++)
    {
      if(AOP_TYPE(left) != AOP_ACC)
        {
          if(is_LitOp(left))
            pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(left), i));
          else
            pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), i));
        }
      if(is_LitOp(right)) {
        if (is_LitOp(left) || (0 != ((lit >> (8*i))&0x00FF))) {
          pic16_emitpcode(POC_XORLW, pic16_popGet(AOP(right), i)); 
        }
      } else
        pic16_emitpcode(POC_XORFW, pic16_popGet(AOP(right), i)); 

      pic16_emitpcode(POC_BNZ,pic16_popGetLabel(falselbl->key));
    }

  // result == true

  if(generate_result && preserve_result)
    {
      for(i = 0; i < AOP_SIZE(result); i++)
        pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),i));
    }

  if(generate_result)
    pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result), 0)); // result = true

  if(generate_result && preserve_result)
    pic16_emitpcode(POC_GOTO,pic16_popGetLabel(donelbl->key));

  if(ifx && IC_TRUE(ifx))
    pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_TRUE(ifx)->key));

  if(ifx && IC_FALSE(ifx))
    pic16_emitpcode(POC_GOTO,pic16_popGetLabel(donelbl->key));

  pic16_emitpLabel(falselbl->key);

  // result == false

  if(ifx && IC_FALSE(ifx))
    pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_FALSE(ifx)->key));

  if(generate_result && preserve_result)
    {
      for(i = 0; i < AOP_SIZE(result); i++)
        pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),i));
    }

  pic16_emitpLabel(donelbl->key);

  if(ifx)
    ifx->generated = 1;

release:
  pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
  pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
  pic16_freeAsmop(result,NULL,ic,TRUE);

}


#if 0
// old version kept for reference

/*-----------------------------------------------------------------*/
/* genCmpEq - generates code for equal to                          */
/*-----------------------------------------------------------------*/
static void genCmpEq (iCode *ic, iCode *ifx)
{
    operand *left, *right, *result;
    unsigned long lit = 0L;
    int size,offset=0;
    symbol *falselbl  = newiTempLabel(NULL);


    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    if(ifx)
      DEBUGpic16_emitcode ("; ifx is non-null","");
    else
      DEBUGpic16_emitcode ("; ifx is null","");

    pic16_aopOp((left=IC_LEFT(ic)),ic,FALSE);
    pic16_aopOp((right=IC_RIGHT(ic)),ic,FALSE);
    pic16_aopOp((result=IC_RESULT(ic)),ic,TRUE);

    size = max(AOP_SIZE(left),AOP_SIZE(right));

    DEBUGpic16_pic16_AopType(__LINE__,left,right,result);

    /* if literal, literal on the right or 
    if the right is in a pointer register and left 
    is not */
    if ((AOP_TYPE(IC_LEFT(ic)) == AOP_LIT) || 
        (IS_AOP_PREG(right) && !IS_AOP_PREG(left))) {
      operand *tmp = right ;
      right = left;
      left = tmp;
    }


    if(ifx && !AOP_SIZE(result)){
        symbol *tlbl;
        DEBUGpic16_emitcode ("; ***","%s  %d CASE 1",__FUNCTION__,__LINE__);
        /* if they are both bit variables */
        if (AOP_TYPE(left) == AOP_CRY &&
            ((AOP_TYPE(right) == AOP_CRY) || (AOP_TYPE(right) == AOP_LIT))) {
                DEBUGpic16_emitcode ("; ***","%s  %d CASE 11",__FUNCTION__,__LINE__);
            if(AOP_TYPE(right) == AOP_LIT){
                unsigned long lit = (unsigned long)floatFromVal(AOP(right)->aopu.aop_lit);
                if(lit == 0L){
                    pic16_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
                    pic16_emitcode("cpl","c");
                } else if(lit == 1L) {
                    pic16_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
                } else {
                    pic16_emitcode("clr","c");
                }
                /* AOP_TYPE(right) == AOP_CRY */
            } else {
                symbol *lbl = newiTempLabel(NULL);
                pic16_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
                pic16_emitcode("jb","%s,%05d_DS_",AOP(right)->aopu.aop_dir,(lbl->key+100));
                pic16_emitcode("cpl","c");
                pic16_emitcode("","%05d_DS_:",(lbl->key+100));
            }
            /* if true label then we jump if condition
            supplied is true */
            tlbl = newiTempLabel(NULL);
            if ( IC_TRUE(ifx) ) {
                pic16_emitcode("jnc","%05d_DS_",tlbl->key+100);
                pic16_emitcode("ljmp","%05d_DS_",IC_TRUE(ifx)->key+100);
            } else {
                pic16_emitcode("jc","%05d_DS_",tlbl->key+100);
                pic16_emitcode("ljmp","%05d_DS_",IC_FALSE(ifx)->key+100);
            }
            pic16_emitcode("","%05d_DS_:",tlbl->key+100+pic16_labelOffset);

                {
                /* left and right are both bit variables, result is carry */
                        resolvedIfx rIfx;
              
                        resolveIfx(&rIfx,ifx);

                        pic16_emitpcode(POC_MOVLW,pic16_popGet(AOP(left),0));
                        pic16_emitpcode(POC_ANDFW,pic16_popGet(AOP(left),0));
                        pic16_emitpcode(POC_BTFSC,pic16_popGet(AOP(right),0));
                        pic16_emitpcode(POC_ANDLW,pic16_popGet(AOP(left),0));
                        genSkipz2(&rIfx,0);
                }
        } else {

                        DEBUGpic16_emitcode ("; ***","%s  %d CASE 12",__FUNCTION__,__LINE__);

                        /* They're not both bit variables. Is the right a literal? */
                        if(AOP_TYPE(right) == AOP_LIT) {
                        lit = (unsigned long)floatFromVal(AOP(right)->aopu.aop_lit);
            
                        switch(size) {

                                case 1:
                                        switch(lit & 0xff) {
                                                case 1:
                                                                if ( IC_TRUE(ifx) ) {
                                                                        pic16_emitpcode(POC_DECFW,pic16_popGet(AOP(left),offset));
                                                                        emitSKPNZ;
                                                                        pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_TRUE(ifx)->key));
                                                                } else {
                                                                        pic16_emitpcode(POC_DECFSZW,pic16_popGet(AOP(left),offset));
                                                                        pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_FALSE(ifx)->key));
                                                                }
                                                                break;
                                                case 0xff:
                                                                if ( IC_TRUE(ifx) ) {
                                                                        pic16_emitpcode(POC_INCFW,pic16_popGet(AOP(left),offset));
                                                                        emitSKPNZ;
                                                                        pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_TRUE(ifx)->key));
                                                                } else {
                                                                        pic16_emitpcode(POC_INCFSZW,pic16_popGet(AOP(left),offset));
                                                                        pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_FALSE(ifx)->key));
                                                                }
                                                                break;
                                                default:
                                                                pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offset));
                                                                if(lit)
                                                                        pic16_emitpcode(POC_XORLW,pic16_popGetLit(lit & 0xff));
                                                                genSkip(ifx,'z');
                                        } // switch lit


                                        /* end of size == 1 */
                                        break;
              
                                case 2:
                                        genc16bit2lit(left,lit,offset);
                                        genSkip(ifx,'z');
                                        break;
                                        /* end of size == 2 */

                                default:
                                        /* size is 4 */
                                        if(lit==0) {
                                                pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),0));
                                                pic16_emitpcode(POC_IORFW,pic16_popGet(AOP(left),1));
                                                pic16_emitpcode(POC_IORFW,pic16_popGet(AOP(left),2));
                                                pic16_emitpcode(POC_IORFW,pic16_popGet(AOP(left),3));
                                                genSkip(ifx,'z');
                                        } else {
                                                /* search for patterns that can be optimized */

                                                genc16bit2lit(left,lit,0);
                                                lit >>= 16;
                                                if(lit) {
                                                                if(IC_TRUE(ifx))
                                                                emitSKPZ; // if hi word unequal
                                                                else
                                                                emitSKPNZ; // if hi word equal
                                                                // fail early
                                                        pic16_emitpcode(POC_GOTO,pic16_popGetLabel(falselbl->key));
                                                        genc16bit2lit(left,lit,2);
                                                        genSkip(ifx,'z');
                                                } else {
                                                        pic16_emitpcode(POC_IORFW,pic16_popGet(AOP(left),2));
                                                        pic16_emitpcode(POC_IORFW,pic16_popGet(AOP(left),3));
                                                        genSkip(ifx,'z');
                                                }
                                        }
                                                pic16_emitpLabel(falselbl->key);
                                                break;

                        } // switch size
          
                        ifx->generated = 1;
                        goto release ;
            

          } else if(AOP_TYPE(right) == AOP_CRY ) {
            /* we know the left is not a bit, but that the right is */
            pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offset));
            pic16_emitpcode( ( (IC_TRUE(ifx)) ? POC_BTFSC : POC_BTFSS),
                      pic16_popGet(AOP(right),offset));
            pic16_emitpcode(POC_XORLW,pic16_popGetLit(1));

            /* if the two are equal, then W will be 0 and the Z bit is set
             * we could test Z now, or go ahead and check the high order bytes if
             * the variable we're comparing is larger than a byte. */

            while(--size)
              pic16_emitpcode(POC_IORFW,pic16_popGet(AOP(left),offset));

            if ( IC_TRUE(ifx) ) {
              emitSKPNZ;
              pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_TRUE(ifx)->key));
              // pic16_emitcode(" goto","_%05d_DS_",IC_TRUE(ifx)->key+100+pic16_labelOffset);
            } else {
              emitSKPZ;
              pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_FALSE(ifx)->key));
              // pic16_emitcode(" goto","_%05d_DS_",IC_FALSE(ifx)->key+100+pic16_labelOffset);
            }

          } else {
            /* They're both variables that are larger than bits */
            int s = size;

            tlbl = newiTempLabel(NULL);

            while(size--) {
              pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offset));
              pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(right),offset));

              if ( IC_TRUE(ifx) ) {
                if(size) {
                  emitSKPZ;
                
                        DEBUGpic16_emitcode (";","\tIC_TRUE emitSKPZ");

                  pic16_emitpcode(POC_GOTO,pic16_popGetLabel(tlbl->key));
                  pic16_emitcode(" goto","_%05d_DS_",tlbl->key+100+pic16_labelOffset);
                } else {
                  emitSKPNZ;

                        DEBUGpic16_emitcode (";","\tIC_TRUE emitSKPNZ");


                  pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_TRUE(ifx)->key));
                  pic16_emitcode(" goto","_%05d_DS_",IC_TRUE(ifx)->key+100+pic16_labelOffset);
                }
              } else {
                emitSKPZ;

                        DEBUGpic16_emitcode (";","\tnot IC_TRUE emitSKPZ");

                pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_FALSE(ifx)->key));
                pic16_emitcode(" goto","_%05d_DS_",IC_FALSE(ifx)->key+100+pic16_labelOffset);
              }
              offset++;
            }
            if(s>1 && IC_TRUE(ifx)) {
              pic16_emitpLabel(tlbl->key);
              pic16_emitcode("","_%05d_DS_:",tlbl->key+100+pic16_labelOffset);                
            }
          }
        }
        /* mark the icode as generated */
        ifx->generated = 1;
        goto release ;
    }

    /* if they are both bit variables */
    if (AOP_TYPE(left) == AOP_CRY &&
        ((AOP_TYPE(right) == AOP_CRY) || (AOP_TYPE(right) == AOP_LIT))) {
        DEBUGpic16_emitcode ("; ***","%s  %d CASE 2",__FUNCTION__,__LINE__);
        if(AOP_TYPE(right) == AOP_LIT){
            unsigned long lit = (unsigned long)floatFromVal(AOP(right)->aopu.aop_lit);
            if(lit == 0L){
                pic16_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
                pic16_emitcode("cpl","c");
            } else if(lit == 1L) {
                pic16_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
            } else {
                pic16_emitcode("clr","c");
            }
            /* AOP_TYPE(right) == AOP_CRY */
        } else {
            symbol *lbl = newiTempLabel(NULL);
            pic16_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
            pic16_emitcode("jb","%s,%05d_DS_",AOP(right)->aopu.aop_dir,(lbl->key+100));
            pic16_emitcode("cpl","c");
            pic16_emitcode("","%05d_DS_:",(lbl->key+100));
        }
        /* c = 1 if egal */
        if (AOP_TYPE(result) == AOP_CRY && AOP_SIZE(result)){
            pic16_outBitC(result);
            goto release ;
        }
        if (ifx) {
            genIfxJump (ifx,"c");
            goto release ;
        }
        /* if the result is used in an arithmetic operation
        then put the result in place */
        pic16_outBitC(result);
    } else {
      
      DEBUGpic16_emitcode ("; ***","%s  %d CASE 3",__FUNCTION__,__LINE__);
      gencjne(left,right,result,ifx);
/*
      if(ifx) 
        gencjne(left,right,newiTempLabel(NULL));
      else {
        if(IC_TRUE(ifx)->key)
          gencjne(left,right,IC_TRUE(ifx)->key);
        else
          gencjne(left,right,IC_FALSE(ifx)->key);
        ifx->generated = 1;
        goto release ;
      }
      if (AOP_TYPE(result) == AOP_CRY && AOP_SIZE(result)) {
        pic16_aopPut(AOP(result),"a",0);
        goto release ;
      }

      if (ifx) {
        genIfxJump (ifx,"a");
        goto release ;
      }
*/
      /* if the result is used in an arithmetic operation
         then put the result in place */
/*
      if (AOP_TYPE(result) != AOP_CRY) 
        pic16_outAcc(result);
*/
      /* leave the result in acc */
    }

release:
    pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(result,NULL,ic,TRUE);
}
#endif

/*-----------------------------------------------------------------*/
/* ifxForOp - returns the icode containing the ifx for operand     */
/*-----------------------------------------------------------------*/
static iCode *ifxForOp ( operand *op, iCode *ic )
{
  FENTRY2;

    /* if true symbol then needs to be assigned */
    if (IS_TRUE_SYMOP(op))
        return NULL ;

    /* if this has register type condition and
    the next instruction is ifx with the same operand
    and live to of the operand is upto the ifx only then */
    if (ic->next
        && ic->next->op == IFX
        && IC_COND(ic->next)->key == op->key
        && OP_SYMBOL(op)->liveTo <= ic->next->seq
        ) {
                DEBUGpic16_emitcode(";", "%d %s", __LINE__, __FUNCTION__);
          return ic->next;
    }

    /*
    if (ic->next &&
        ic->next->op == IFX &&
        IC_COND(ic->next)->key == op->key) {
      DEBUGpic16_emitcode ("; WARNING ","%d IGNORING liveTo range in %s",__LINE__,__FUNCTION__);
      return ic->next;
    }
    */

    DEBUGpic16_emitcode ("; NULL :(","%d",__LINE__);
    if (ic->next &&
        ic->next->op == IFX)
      DEBUGpic16_emitcode ("; ic-next"," is an IFX");

    if (ic->next &&
        ic->next->op == IFX &&
        IC_COND(ic->next)->key == op->key) {
      DEBUGpic16_emitcode ("; "," key is okay");
      DEBUGpic16_emitcode ("; "," key liveTo %d, next->seq = %d",
                           OP_SYMBOL(op)->liveTo,
                           ic->next->seq);
    }

#if 0
    /* the code below is completely untested
     * it just allows ulong2fs.c compile -- VR */
         
    ic = ic->next;
    fprintf(stderr, "WARNING (%s:%s:%d) untested hack might produce wrong code\n",
                                        __FILE__, __FUNCTION__, __LINE__);
        
    /* if this has register type condition and
    the next instruction is ifx with the same operand
    and live to of the operand is upto the ifx only then */
    if (ic->next &&
        ic->next->op == IFX &&
        IC_COND(ic->next)->key == op->key &&
        OP_SYMBOL(op)->liveTo <= ic->next->seq )
        return ic->next;

    if (ic->next &&
        ic->next->op == IFX &&
        IC_COND(ic->next)->key == op->key) {
      DEBUGpic16_emitcode ("; WARNING ","%d IGNORING liveTo range in %s",__LINE__,__FUNCTION__);
      return ic->next;
    }

    fprintf(stderr, "WARNING (%s:%s:%d) untested hack might produce wrong code (returning NULL)\n",
                                        __FILE__, __FUNCTION__, __LINE__);

//  return ic->next->next;              /* this just might work */ /* FIXME FIXME */
#endif

    return NULL;
}
/*-----------------------------------------------------------------*/
/* genAndOp - for && operation                                     */
/*-----------------------------------------------------------------*/
static void genAndOp (iCode *ic)
{
  operand *left,*right, *result;
/*     symbol *tlbl; */

    FENTRY;

    /* note here that && operations that are in an
    if statement are taken away by backPatchLabels
    only those used in arthmetic operations remain */
    pic16_aopOp((left=IC_LEFT(ic)),ic,FALSE);
    pic16_aopOp((right=IC_RIGHT(ic)),ic,FALSE);
    pic16_aopOp((result=IC_RESULT(ic)),ic,TRUE);

    DEBUGpic16_pic16_AopType(__LINE__,left,right,result);

    pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),0));
    pic16_emitpcode(POC_ANDFW,pic16_popGet(AOP(right),0));
    pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),0));

    /* if both are bit variables */
/*     if (AOP_TYPE(left) == AOP_CRY && */
/*         AOP_TYPE(right) == AOP_CRY ) { */
/*         pic16_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir); */
/*         pic16_emitcode("anl","c,%s",AOP(right)->aopu.aop_dir); */
/*         pic16_outBitC(result); */
/*     } else { */
/*         tlbl = newiTempLabel(NULL); */
/*         pic16_toBoolean(left);     */
/*         pic16_emitcode("jz","%05d_DS_",tlbl->key+100); */
/*         pic16_toBoolean(right); */
/*         pic16_emitcode("","%05d_DS_:",tlbl->key+100); */
/*         pic16_outBitAcc(result); */
/*     } */

    pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(result,NULL,ic,TRUE);
}


/*-----------------------------------------------------------------*/
/* genOrOp - for || operation                                      */
/*-----------------------------------------------------------------*/
/*
  tsd pic port -
  modified this code, but it doesn't appear to ever get called
*/

static void genOrOp (iCode *ic)
{
  operand *left,*right, *result;
  symbol *tlbl;

    FENTRY;  

  /* note here that || operations that are in an
    if statement are taken away by backPatchLabels
    only those used in arthmetic operations remain */
    pic16_aopOp((left=IC_LEFT(ic)),ic,FALSE);
    pic16_aopOp((right=IC_RIGHT(ic)),ic,FALSE);
    pic16_aopOp((result=IC_RESULT(ic)),ic,TRUE);

    DEBUGpic16_pic16_AopType(__LINE__,left,right,result);

    /* if both are bit variables */
    if (AOP_TYPE(left) == AOP_CRY &&
        AOP_TYPE(right) == AOP_CRY ) {
      pic16_emitcode("clrc","");
      pic16_emitcode("btfss","(%s >> 3), (%s & 7)",
               AOP(left)->aopu.aop_dir,
               AOP(left)->aopu.aop_dir);
      pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
               AOP(right)->aopu.aop_dir,
               AOP(right)->aopu.aop_dir);
      pic16_emitcode("setc","");

    } else {
        tlbl = newiTempLabel(NULL);
        pic16_toBoolean(left);
        emitSKPZ;
        pic16_emitcode("goto","%05d_DS_",tlbl->key+100+pic16_labelOffset);
        pic16_toBoolean(right);
        pic16_emitcode("","%05d_DS_:",tlbl->key+100+pic16_labelOffset);

        pic16_outBitAcc(result);
    }

    pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(result,NULL,ic,TRUE);            
}

/*-----------------------------------------------------------------*/
/* isLiteralBit - test if lit == 2^n                               */
/*-----------------------------------------------------------------*/
static int isLiteralBit(unsigned long lit)
{
    unsigned long pw[32] = {1L,2L,4L,8L,16L,32L,64L,128L,
    0x100L,0x200L,0x400L,0x800L,
    0x1000L,0x2000L,0x4000L,0x8000L,
    0x10000L,0x20000L,0x40000L,0x80000L,
    0x100000L,0x200000L,0x400000L,0x800000L,
    0x1000000L,0x2000000L,0x4000000L,0x8000000L,
    0x10000000L,0x20000000L,0x40000000L,0x80000000L};
    int idx;
    
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    for(idx = 0; idx < 32; idx++)
        if(lit == pw[idx])
            return idx+1;
    return 0;
}

/*-----------------------------------------------------------------*/
/* continueIfTrue -                                                */
/*-----------------------------------------------------------------*/
static void continueIfTrue (iCode *ic)
{
  FENTRY;
  if(IC_TRUE(ic))
    pic16_emitcode("ljmp","%05d_DS_",IC_TRUE(ic)->key+100);
  ic->generated = 1;
}

/*-----------------------------------------------------------------*/
/* jmpIfTrue -                                                     */
/*-----------------------------------------------------------------*/
static void jumpIfTrue (iCode *ic)
{
  FENTRY;
  if(!IC_TRUE(ic))
    pic16_emitcode("ljmp","%05d_DS_",IC_FALSE(ic)->key+100);
  ic->generated = 1;
}

/*-----------------------------------------------------------------*/
/* jmpTrueOrFalse -                                                */
/*-----------------------------------------------------------------*/
static void jmpTrueOrFalse (iCode *ic, symbol *tlbl)
{
  // ugly but optimized by peephole
  FENTRY;
  if(IC_TRUE(ic)){
    symbol *nlbl = newiTempLabel(NULL);
      pic16_emitcode("sjmp","%05d_DS_",nlbl->key+100);                 
      pic16_emitcode("","%05d_DS_:",tlbl->key+100);
      pic16_emitcode("ljmp","%05d_DS_",IC_TRUE(ic)->key+100);
      pic16_emitcode("","%05d_DS_:",nlbl->key+100);
  } else {
    pic16_emitcode("ljmp","%05d_DS_",IC_FALSE(ic)->key+100);
    pic16_emitcode("","%05d_DS_:",tlbl->key+100);
  }
  ic->generated = 1;
}

/*-----------------------------------------------------------------*/
/* genAnd  - code for and                                          */
/*-----------------------------------------------------------------*/
static void genAnd (iCode *ic, iCode *ifx)
{
  operand *left, *right, *result;
  int size, offset=0;  
  unsigned long lit = 0L;
  int bytelit = 0;
  resolvedIfx rIfx;

    FENTRY;
    
  pic16_aopOp((left = IC_LEFT(ic)),ic,FALSE);
  pic16_aopOp((right= IC_RIGHT(ic)),ic,FALSE);
  pic16_aopOp((result=IC_RESULT(ic)),ic,TRUE);

  resolveIfx(&rIfx,ifx);

  /* if left is a literal & right is not then exchange them */
  if ((AOP_TYPE(left) == AOP_LIT && AOP_TYPE(right) != AOP_LIT) ||
      AOP_NEEDSACC(left)) {
    operand *tmp = right ;
    right = left;
    left = tmp;
  }

  /* if result = right then exchange them */
  if(pic16_sameRegs(AOP(result),AOP(right))){
    operand *tmp = right ;
    right = left;
    left = tmp;
  }

  /* if right is bit then exchange them */
  if (AOP_TYPE(right) == AOP_CRY &&
      AOP_TYPE(left) != AOP_CRY){
    operand *tmp = right ;
    right = left;
    left = tmp;
  }
  if(AOP_TYPE(right) == AOP_LIT)
    lit = (unsigned long)floatFromVal (AOP(right)->aopu.aop_lit);

  size = AOP_SIZE(result);

  DEBUGpic16_pic16_AopType(__LINE__,left,right,result);

  // if(bit & yy)
  // result = bit & yy;
  if (AOP_TYPE(left) == AOP_CRY){
    // c = bit & literal;
    if(AOP_TYPE(right) == AOP_LIT){
      if(lit & 1) {
        if(size && pic16_sameRegs(AOP(result),AOP(left)))
          // no change
          goto release;
        pic16_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
      } else {
        // bit(result) = 0;
        if(size && (AOP_TYPE(result) == AOP_CRY)){
          pic16_emitcode("clr","%s",AOP(result)->aopu.aop_dir);
          goto release;
        }
        if((AOP_TYPE(result) == AOP_CRY) && ifx){
          jumpIfTrue(ifx);
          goto release;
        }
        pic16_emitcode("clr","c");
      }
    } else {
      if (AOP_TYPE(right) == AOP_CRY){
        // c = bit & bit;
        pic16_emitcode("mov","c,%s",AOP(right)->aopu.aop_dir);
        pic16_emitcode("anl","c,%s",AOP(left)->aopu.aop_dir);
      } else {
        // c = bit & val;
        MOVA(pic16_aopGet(AOP(right),0,FALSE,FALSE));
        // c = lsb
        pic16_emitcode("rrc","a");
        pic16_emitcode("anl","c,%s",AOP(left)->aopu.aop_dir);
      }
    }
    // bit = c
    // val = c
    if(size)
      pic16_outBitC(result);
    // if(bit & ...)
    else if((AOP_TYPE(result) == AOP_CRY) && ifx)
      genIfxJump(ifx, "c");           
    goto release ;
  }

  // if(val & 0xZZ)       - size = 0, ifx != FALSE  -
  // bit = val & 0xZZ     - size = 1, ifx = FALSE -
  if((AOP_TYPE(right) == AOP_LIT) &&
     (AOP_TYPE(result) == AOP_CRY) &&
     (AOP_TYPE(left) != AOP_CRY)){
    int posbit = isLiteralBit(lit);
    /* left &  2^n */
    if(posbit){
      posbit--;
      //MOVA(pic16_aopGet(AOP(left),posbit>>3,FALSE,FALSE));
      // bit = left & 2^n
      if(size)
        pic16_emitcode("mov","c,acc.%d",posbit&0x07);
      // if(left &  2^n)
      else{
        if(ifx){
/*
          if(IC_TRUE(ifx)) {
            pic16_emitpcode(POC_BTFSC,pic16_newpCodeOpBit(pic16_aopGet(AOP(left),0,FALSE,FALSE),posbit,0));
            pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_TRUE(ic)->key));
          } else {
            pic16_emitpcode(POC_BTFSS,pic16_newpCodeOpBit(pic16_aopGet(AOP(left),0,FALSE,FALSE),posbit,0));
            pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_FALSE(ic)->key));
          }
*/
        DEBUGpic16_emitcode("***", "%d %s", __LINE__, __FUNCTION__);
        size = AOP_SIZE(left);

        {
          int bp = posbit, ofs=0;
          
            while(bp > 7) {
              bp -= 8;
              ofs++;
            }

          pic16_emitpcode(((rIfx.condition) ? POC_BTFSC : POC_BTFSS),
                    pic16_newpCodeOpBit(pic16_aopGet(AOP(left),ofs,FALSE,FALSE),bp,0, PO_GPR_REGISTER));

        }
/*
          pic16_emitpcode(((rIfx.condition) ? POC_BTFSC : POC_BTFSS),
                    pic16_newpCodeOpBit(pic16_aopGet(AOP(left),0,FALSE,FALSE),posbit,0));
*/
          pic16_emitpcode(POC_GOTO,pic16_popGetLabel(rIfx.lbl->key));
          
          ifx->generated = 1;
        }
        goto release;
      }
    } else {
      symbol *tlbl = newiTempLabel(NULL);
      int sizel = AOP_SIZE(left);

      if(size)
        emitSETC;

      while(sizel--) {
        if((bytelit = ((lit >> (offset*8)) & 0x0FFL)) != 0x0L) {

          /* patch provided by Aaron Colwell */
          if((posbit = isLiteralBit(bytelit)) != 0) {
              pic16_emitpcode(((rIfx.condition) ? POC_BTFSS : POC_BTFSC ),
                              pic16_newpCodeOpBit(pic16_aopGet(AOP(left), offset,FALSE,FALSE),
                                                (posbit-1),0, PO_GPR_REGISTER));

              pic16_emitpcode(POC_BRA, pic16_popGetLabel(tlbl->key));
//              pic16_emitpcode(POC_BRA, pic16_popGetLabel(rIfx.lbl->key));
          } else {
              if (bytelit == 0xff) {
                  /* Aaron had a MOVF instruction here, changed to MOVFW cause
                   * a peephole could optimize it out -- VR */
                  pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), offset));
              } else {
                  pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), offset));
                  pic16_emitpcode(POC_ANDLW, pic16_popGetLit(bytelit));
              }

              pic16_emitpcode(((rIfx.condition) ? POC_BZ : POC_BNZ),
                            pic16_popGetLabel(tlbl->key));
          }
        
#if 0
          /* old code, left here for reference -- VR 09/2004 */
          MOVA( pic16_aopGet(AOP(left),offset,FALSE,FALSE));
          // byte ==  2^n ?
          if((posbit = isLiteralBit(bytelit)) != 0)
            pic16_emitcode("jb","acc.%d,%05d_DS_",(posbit-1)&0x07,tlbl->key+100);
          else{
            if(bytelit != 0x0FFL)
              pic16_emitcode("anl","a,%s",
                             pic16_aopGet(AOP(right),offset,FALSE,TRUE));
            pic16_emitcode("jnz","%05d_DS_",tlbl->key+100);
          }
#endif
        }
        offset++;
      }
      // bit = left & literal
      if(size) {
        emitCLRC;
        pic16_emitpLabel(tlbl->key);
      }
      // if(left & literal)
      else {
        if(ifx) {
          pic16_emitpcode(POC_BRA, pic16_popGetLabel(rIfx.lbl->key));
          ifx->generated = 1;
        }
        pic16_emitpLabel(tlbl->key);
        goto release;
      }
    }

    pic16_outBitC(result);
    goto release ;
  }

  /* if left is same as result */
  if(pic16_sameRegs(AOP(result),AOP(left))){
    int know_W = -1;
    for(;size--; offset++,lit>>=8) {
      if(AOP_TYPE(right) == AOP_LIT){
        switch(lit & 0xff) {
        case 0x00:
          /*  and'ing with 0 has clears the result */
//        pic16_emitcode("clrf","%s",pic16_aopGet(AOP(result),offset,FALSE,FALSE));
          pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),offset));
          break;
        case 0xff:
          /* and'ing with 0xff is a nop when the result and left are the same */
          break;

        default:
          {
            int p = pic16_my_powof2( (~lit) & 0xff );
            if(p>=0) {
              /* only one bit is set in the literal, so use a bcf instruction */
//            pic16_emitcode("bcf","%s,%d",pic16_aopGet(AOP(left),offset,FALSE,TRUE),p);
              pic16_emitpcode(POC_BCF,pic16_newpCodeOpBit(pic16_aopGet(AOP(left),offset,FALSE,FALSE),p,0, PO_GPR_REGISTER));

            } else {
              pic16_emitcode("movlw","0x%x", (lit & 0xff));
              pic16_emitcode("andwf","%s,f",pic16_aopGet(AOP(left),offset,FALSE,TRUE));
              if(know_W != (lit&0xff))
                pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit & 0xff));
              know_W = lit &0xff;
              pic16_emitpcode(POC_ANDWF,pic16_popGet(AOP(left),offset));
            }
          }    
        }
      } else {
        if (AOP_TYPE(left) == AOP_ACC) {
          pic16_emitpcode(POC_ANDFW,pic16_popGet(AOP(right),offset));
        } else {                    
          pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(right),offset));
          pic16_emitpcode(POC_ANDWF,pic16_popGet(AOP(left),offset));

        }
      }
    }

  } else {
    // left & result in different registers
    if(AOP_TYPE(result) == AOP_CRY){
      // result = bit
      // if(size), result in bit
      // if(!size && ifx), conditional oper: if(left & right)
      symbol *tlbl = newiTempLabel(NULL);
      int sizer = min(AOP_SIZE(left),AOP_SIZE(right));
      if(size)
        pic16_emitcode("setb","c");
      while(sizer--){
        MOVA(pic16_aopGet(AOP(right),offset,FALSE,FALSE));
        pic16_emitcode("anl","a,%s",
                       pic16_aopGet(AOP(left),offset,FALSE,FALSE));
        pic16_emitcode("jnz","%05d_DS_",tlbl->key+100);
        offset++;
      }
      if(size){
        CLRC;
        pic16_emitcode("","%05d_DS_:",tlbl->key+100);
        pic16_outBitC(result);
      } else if(ifx)
        jmpTrueOrFalse(ifx, tlbl);
    } else {
      for(;(size--);offset++) {
        // normal case
        // result = left & right
        if(AOP_TYPE(right) == AOP_LIT){
          int t = (lit >> (offset*8)) & 0x0FFL;
          switch(t) { 
          case 0x00:
            pic16_emitcode("clrf","%s",
                           pic16_aopGet(AOP(result),offset,FALSE,FALSE));
            pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),offset));
            break;
          case 0xff:
            pic16_emitcode("movf","%s,w",
                           pic16_aopGet(AOP(left),offset,FALSE,FALSE));
            pic16_emitcode("movwf","%s",
                           pic16_aopGet(AOP(result),offset,FALSE,FALSE));
            pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offset));
            pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offset));
            break;
          default:
            pic16_emitcode("movlw","0x%x",t);
            pic16_emitcode("andwf","%s,w",
                           pic16_aopGet(AOP(left),offset,FALSE,FALSE));
            pic16_emitcode("movwf","%s",
                           pic16_aopGet(AOP(result),offset,FALSE,FALSE));
              
            pic16_emitpcode(POC_MOVLW, pic16_popGetLit(t));
            pic16_emitpcode(POC_ANDFW,pic16_popGet(AOP(left),offset));
            pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offset));
          }
          continue;
        }

        if (AOP_TYPE(left) == AOP_ACC) {
          pic16_emitcode("andwf","%s,w",pic16_aopGet(AOP(right),offset,FALSE,FALSE));
          pic16_emitpcode(POC_ANDFW,pic16_popGet(AOP(right),offset));
        } else {
          pic16_emitcode("movf","%s,w",pic16_aopGet(AOP(right),offset,FALSE,FALSE));
          pic16_emitcode("andwf","%s,w",
                         pic16_aopGet(AOP(left),offset,FALSE,FALSE));
          pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(right),offset));
          pic16_emitpcode(POC_ANDFW,pic16_popGet(AOP(left),offset));
        }
        pic16_emitcode("movwf","%s",pic16_aopGet(AOP(result),offset,FALSE,FALSE));
        pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offset));
      }
    }
  }

  release :
    pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
  pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
  pic16_freeAsmop(result,NULL,ic,TRUE);     
}

/*-----------------------------------------------------------------*/
/* genOr  - code for or                                            */
/*-----------------------------------------------------------------*/
static void genOr (iCode *ic, iCode *ifx)
{
    operand *left, *right, *result;
    int size, offset=0;
    unsigned long lit = 0L;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    pic16_aopOp((left = IC_LEFT(ic)),ic,FALSE);
    pic16_aopOp((right= IC_RIGHT(ic)),ic,FALSE);
    pic16_aopOp((result=IC_RESULT(ic)),ic,TRUE);

    DEBUGpic16_pic16_AopType(__LINE__,left,right,result);

    /* if left is a literal & right is not then exchange them */
    if ((AOP_TYPE(left) == AOP_LIT && AOP_TYPE(right) != AOP_LIT) ||
        AOP_NEEDSACC(left)) {
        operand *tmp = right ;
        right = left;
        left = tmp;
    }

    /* if result = right then exchange them */
    if(pic16_sameRegs(AOP(result),AOP(right))){
        operand *tmp = right ;
        right = left;
        left = tmp;
    }

    /* if right is bit then exchange them */
    if (AOP_TYPE(right) == AOP_CRY &&
        AOP_TYPE(left) != AOP_CRY){
        operand *tmp = right ;
        right = left;
        left = tmp;
    }

    DEBUGpic16_pic16_AopType(__LINE__,left,right,result);

    if(AOP_TYPE(right) == AOP_LIT)
        lit = (unsigned long)floatFromVal (AOP(right)->aopu.aop_lit);

    size = AOP_SIZE(result);

    // if(bit | yy)
    // xx = bit | yy;
    if (AOP_TYPE(left) == AOP_CRY){
        if(AOP_TYPE(right) == AOP_LIT){
            // c = bit & literal;
            if(lit){
                // lit != 0 => result = 1
                if(AOP_TYPE(result) == AOP_CRY){
                  if(size)
                    pic16_emitpcode(POC_BSF, pic16_popGet(AOP(result),0));
                  //pic16_emitcode("bsf","(%s >> 3), (%s & 7)",
                  //     AOP(result)->aopu.aop_dir,
                  //     AOP(result)->aopu.aop_dir);
                    else if(ifx)
                        continueIfTrue(ifx);
                    goto release;
                }
            } else {
                // lit == 0 => result = left
                if(size && pic16_sameRegs(AOP(result),AOP(left)))
                    goto release;
                pic16_emitcode(";XXX mov","c,%s  %s,%d",AOP(left)->aopu.aop_dir,__FILE__,__LINE__);
            }
        } else {
            if (AOP_TYPE(right) == AOP_CRY){
              if(pic16_sameRegs(AOP(result),AOP(left))){
                // c = bit | bit;
                pic16_emitpcode(POC_BCF,   pic16_popGet(AOP(result),0));
                pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(right),0));
                pic16_emitpcode(POC_BSF,   pic16_popGet(AOP(result),0));

                pic16_emitcode("bcf","(%s >> 3), (%s & 7)",
                         AOP(result)->aopu.aop_dir,
                         AOP(result)->aopu.aop_dir);
                pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
                         AOP(right)->aopu.aop_dir,
                         AOP(right)->aopu.aop_dir);
                pic16_emitcode("bsf","(%s >> 3), (%s & 7)",
                         AOP(result)->aopu.aop_dir,
                         AOP(result)->aopu.aop_dir);
              } else {
                if( AOP_TYPE(result) == AOP_ACC) {
                  pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0));
                  pic16_emitpcode(POC_BTFSS, pic16_popGet(AOP(right),0));
                  pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(left),0));
                  pic16_emitpcode(POC_MOVLW, pic16_popGetLit(1));

                } else {

                  pic16_emitpcode(POC_BCF,   pic16_popGet(AOP(result),0));
                  pic16_emitpcode(POC_BTFSS, pic16_popGet(AOP(right),0));
                  pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(left),0));
                  pic16_emitpcode(POC_BSF,   pic16_popGet(AOP(result),0));

                  pic16_emitcode("bcf","(%s >> 3), (%s & 7)",
                                 AOP(result)->aopu.aop_dir,
                                 AOP(result)->aopu.aop_dir);
                  pic16_emitcode("btfss","(%s >> 3), (%s & 7)",
                                 AOP(right)->aopu.aop_dir,
                                 AOP(right)->aopu.aop_dir);
                  pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
                                 AOP(left)->aopu.aop_dir,
                                 AOP(left)->aopu.aop_dir);
                  pic16_emitcode("bsf","(%s >> 3), (%s & 7)",
                                 AOP(result)->aopu.aop_dir,
                                 AOP(result)->aopu.aop_dir);
                }
              }
            } else {
                // c = bit | val;
                symbol *tlbl = newiTempLabel(NULL);
                pic16_emitcode(";XXX "," %s,%d",__FILE__,__LINE__);


                pic16_emitpcode(POC_BCF,   pic16_popGet(AOP(result),0));
                if( AOP_TYPE(right) == AOP_ACC) {
                  pic16_emitpcode(POC_IORLW, pic16_popGetLit(0));
                  emitSKPNZ;
                  pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(left),0));
                  pic16_emitpcode(POC_BSF,   pic16_popGet(AOP(result),0));
                }



                if(!((AOP_TYPE(result) == AOP_CRY) && ifx))
                    pic16_emitcode(";XXX setb","c");
                pic16_emitcode(";XXX jb","%s,%05d_DS_",
                         AOP(left)->aopu.aop_dir,tlbl->key+100);
                pic16_toBoolean(right);
                pic16_emitcode(";XXX jnz","%05d_DS_",tlbl->key+100);
                if((AOP_TYPE(result) == AOP_CRY) && ifx){
                    jmpTrueOrFalse(ifx, tlbl);
                    goto release;
                } else {
                    CLRC;
                    pic16_emitcode("","%05d_DS_:",tlbl->key+100);
                }
            }
        }
        // bit = c
        // val = c
        if(size)
            pic16_outBitC(result);
        // if(bit | ...)
        else if((AOP_TYPE(result) == AOP_CRY) && ifx)
            genIfxJump(ifx, "c");           
        goto release ;
    }

    // if(val | 0xZZ)       - size = 0, ifx != FALSE  -
    // bit = val | 0xZZ     - size = 1, ifx = FALSE -
    if((AOP_TYPE(right) == AOP_LIT) &&
       (AOP_TYPE(result) == AOP_CRY) &&
       (AOP_TYPE(left) != AOP_CRY)){
        if(lit){
          pic16_emitcode(";XXX "," %s,%d",__FILE__,__LINE__);
            // result = 1
            if(size)
                pic16_emitcode(";XXX setb","%s",AOP(result)->aopu.aop_dir);
            else 
                continueIfTrue(ifx);
            goto release;
        } else {
          pic16_emitcode(";XXX "," %s,%d",__FILE__,__LINE__);
            // lit = 0, result = boolean(left)
            if(size)
                pic16_emitcode(";XXX setb","c");
            pic16_toBoolean(right);
            if(size){
                symbol *tlbl = newiTempLabel(NULL);
                pic16_emitcode(";XXX jnz","%05d_DS_",tlbl->key+100);
                CLRC;
                pic16_emitcode("","%05d_DS_:",tlbl->key+100);
            } else {
                genIfxJump (ifx,"a");
                goto release;
            }
        }
        pic16_outBitC(result);
        goto release ;
    }

    /* if left is same as result */
    if(pic16_sameRegs(AOP(result),AOP(left))){
      int know_W = -1;
      for(;size--; offset++,lit>>=8) {
        if(AOP_TYPE(right) == AOP_LIT){
          if((lit & 0xff) == 0)
            /*  or'ing with 0 has no effect */
            continue;
          else {
            int p = pic16_my_powof2(lit & 0xff);
            if(p>=0) {
              /* only one bit is set in the literal, so use a bsf instruction */
              pic16_emitpcode(POC_BSF,
                        pic16_newpCodeOpBit(pic16_aopGet(AOP(left),offset,FALSE,FALSE),p,0, PO_GPR_REGISTER));
            } else {
              if(know_W != (lit & 0xff))
                pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit & 0xff));
              know_W = lit & 0xff;
              pic16_emitpcode(POC_IORWF, pic16_popGet(AOP(left),offset));
            }
                    
          }
        } else {
          if (AOP_TYPE(left) == AOP_ACC) {
            pic16_emitpcode(POC_IORFW,  pic16_popGet(AOP(right),offset));
            pic16_emitcode("iorwf","%s,w",pic16_aopGet(AOP(right),offset,FALSE,FALSE));
          } else {                  
            pic16_emitpcode(POC_MOVFW,  pic16_popGet(AOP(right),offset));
            pic16_emitpcode(POC_IORWF,  pic16_popGet(AOP(left),offset));

            pic16_emitcode("movf","%s,w",pic16_aopGet(AOP(right),offset,FALSE,FALSE));
            pic16_emitcode("iorwf","%s,f",pic16_aopGet(AOP(left),offset,FALSE,FALSE));

          }
        }
      }
    } else {
        // left & result in different registers
        if(AOP_TYPE(result) == AOP_CRY){
            // result = bit
            // if(size), result in bit
            // if(!size && ifx), conditional oper: if(left | right)
            symbol *tlbl = newiTempLabel(NULL);
            int sizer = max(AOP_SIZE(left),AOP_SIZE(right));
            pic16_emitcode(";XXX "," %s,%d",__FILE__,__LINE__);


            if(size)
                pic16_emitcode(";XXX setb","c");
            while(sizer--){
                MOVA(pic16_aopGet(AOP(right),offset,FALSE,FALSE));
                pic16_emitcode(";XXX orl","a,%s",
                         pic16_aopGet(AOP(left),offset,FALSE,FALSE));
                pic16_emitcode(";XXX jnz","%05d_DS_",tlbl->key+100);
                offset++;
            }
            if(size){
                CLRC;
                pic16_emitcode("","%05d_DS_:",tlbl->key+100);
                pic16_outBitC(result);
            } else if(ifx)
                jmpTrueOrFalse(ifx, tlbl);
        } else for(;(size--);offset++){
          // normal case
          // result = left & right
          if(AOP_TYPE(right) == AOP_LIT){
            int t = (lit >> (offset*8)) & 0x0FFL;
            switch(t) { 
            case 0x00:
              pic16_emitpcode(POC_MOVFW,  pic16_popGet(AOP(left),offset));
              pic16_emitpcode(POC_MOVWF,  pic16_popGet(AOP(result),offset));

              pic16_emitcode("movf","%s,w",
                       pic16_aopGet(AOP(left),offset,FALSE,FALSE));
              pic16_emitcode("movwf","%s",
                       pic16_aopGet(AOP(result),offset,FALSE,FALSE));
              break;
            default:
              pic16_emitpcode(POC_MOVLW,  pic16_popGetLit(t));
              pic16_emitpcode(POC_IORFW,  pic16_popGet(AOP(left),offset));
              pic16_emitpcode(POC_MOVWF,  pic16_popGet(AOP(result),offset));

              pic16_emitcode("movlw","0x%x",t);
              pic16_emitcode("iorwf","%s,w",
                       pic16_aopGet(AOP(left),offset,FALSE,FALSE));
              pic16_emitcode("movwf","%s",
                       pic16_aopGet(AOP(result),offset,FALSE,FALSE));
              
            }
            continue;
          }

          // faster than result <- left, anl result,right
          // and better if result is SFR
          if (AOP_TYPE(left) == AOP_ACC) {
            pic16_emitpcode(POC_IORWF,  pic16_popGet(AOP(right),offset));
            pic16_emitcode("iorwf","%s,w",pic16_aopGet(AOP(right),offset,FALSE,FALSE));
          } else {
            pic16_emitpcode(POC_MOVFW,  pic16_popGet(AOP(right),offset));
            pic16_emitpcode(POC_IORFW,  pic16_popGet(AOP(left),offset));

            pic16_emitcode("movf","%s,w",pic16_aopGet(AOP(right),offset,FALSE,FALSE));
            pic16_emitcode("iorwf","%s,w",
                     pic16_aopGet(AOP(left),offset,FALSE,FALSE));
          }
          pic16_emitpcode(POC_MOVWF,  pic16_popGet(AOP(result),offset));
          pic16_emitcode("movwf","%s",pic16_aopGet(AOP(result),offset,FALSE,FALSE));
        }
    }

release :
    pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
    pic16_freeAsmop(result,NULL,ic,TRUE);     
}

/*-----------------------------------------------------------------*/
/* genXor - code for xclusive or                                   */
/*-----------------------------------------------------------------*/
static void genXor (iCode *ic, iCode *ifx)
{
  operand *left, *right, *result;
  int size, offset=0;
  unsigned long lit = 0L;

  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

  pic16_aopOp((left = IC_LEFT(ic)),ic,FALSE);
  pic16_aopOp((right= IC_RIGHT(ic)),ic,FALSE);
  pic16_aopOp((result=IC_RESULT(ic)),ic,TRUE);

  /* if left is a literal & right is not ||
     if left needs acc & right does not */
  if ((AOP_TYPE(left) == AOP_LIT && AOP_TYPE(right) != AOP_LIT) ||
      (AOP_NEEDSACC(left) && !AOP_NEEDSACC(right))) {
    operand *tmp = right ;
    right = left;
    left = tmp;
  }

  /* if result = right then exchange them */
  if(pic16_sameRegs(AOP(result),AOP(right))){
    operand *tmp = right ;
    right = left;
    left = tmp;
  }

  /* if right is bit then exchange them */
  if (AOP_TYPE(right) == AOP_CRY &&
      AOP_TYPE(left) != AOP_CRY){
    operand *tmp = right ;
    right = left;
    left = tmp;
  }
  if(AOP_TYPE(right) == AOP_LIT)
    lit = (unsigned long)floatFromVal (AOP(right)->aopu.aop_lit);

  size = AOP_SIZE(result);

  // if(bit ^ yy)
  // xx = bit ^ yy;
  if (AOP_TYPE(left) == AOP_CRY){
    if(AOP_TYPE(right) == AOP_LIT){
      // c = bit & literal;
      if(lit>>1){
        // lit>>1  != 0 => result = 1
        if(AOP_TYPE(result) == AOP_CRY){
          if(size)
            {pic16_emitpcode(POC_BSF,  pic16_popGet(AOP(result),offset));
            pic16_emitcode("setb","%s",AOP(result)->aopu.aop_dir);}
          else if(ifx)
            continueIfTrue(ifx);
          goto release;
        }
        pic16_emitcode("setb","c");
      } else{
        // lit == (0 or 1)
        if(lit == 0){
          // lit == 0, result = left
          if(size && pic16_sameRegs(AOP(result),AOP(left)))
            goto release;
          pic16_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
        } else{
          // lit == 1, result = not(left)
          if(size && pic16_sameRegs(AOP(result),AOP(left))){
            pic16_emitpcode(POC_MOVLW,  pic16_popGet(AOP(result),offset));
            pic16_emitpcode(POC_XORWF,  pic16_popGet(AOP(result),offset));
            pic16_emitcode("cpl","%s",AOP(result)->aopu.aop_dir);
            goto release;
          } else {
            pic16_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
            pic16_emitcode("cpl","c");
          }
        }
      }

    } else {
      // right != literal
      symbol *tlbl = newiTempLabel(NULL);
      if (AOP_TYPE(right) == AOP_CRY){
        // c = bit ^ bit;
        pic16_emitcode("mov","c,%s",AOP(right)->aopu.aop_dir);
      }
      else{
        int sizer = AOP_SIZE(right);
        // c = bit ^ val
        // if val>>1 != 0, result = 1
        pic16_emitcode("setb","c");
        while(sizer){
          MOVA(pic16_aopGet(AOP(right),sizer-1,FALSE,FALSE));
          if(sizer == 1)
            // test the msb of the lsb
            pic16_emitcode("anl","a,#0xfe");
          pic16_emitcode("jnz","%05d_DS_",tlbl->key+100);
          sizer--;
        }
        // val = (0,1)
        pic16_emitcode("rrc","a");
      }
      pic16_emitcode("jnb","%s,%05d_DS_",AOP(left)->aopu.aop_dir,(tlbl->key+100));
      pic16_emitcode("cpl","c");
      pic16_emitcode("","%05d_DS_:",(tlbl->key+100));
    }
    // bit = c
    // val = c
    if(size)
      pic16_outBitC(result);
    // if(bit | ...)
    else if((AOP_TYPE(result) == AOP_CRY) && ifx)
      genIfxJump(ifx, "c");           
    goto release ;
  }

  if(pic16_sameRegs(AOP(result),AOP(left))){
    /* if left is same as result */
    for(;size--; offset++) {
      if(AOP_TYPE(right) == AOP_LIT){
        int t  = (lit >> (offset*8)) & 0x0FFL;
        if(t == 0x00L)
          continue;
        else
          if (IS_AOP_PREG(left)) {
            MOVA(pic16_aopGet(AOP(right),offset,FALSE,FALSE));
            pic16_emitcode("xrl","a,%s",pic16_aopGet(AOP(left),offset,FALSE,TRUE));
            pic16_aopPut(AOP(result),"a",offset);
          } else {
            pic16_emitpcode(POC_MOVLW, pic16_popGetLit(t));
            pic16_emitpcode(POC_XORWF,pic16_popGet(AOP(left),offset));
            pic16_emitcode("xrl","%s,%s",
                           pic16_aopGet(AOP(left),offset,FALSE,TRUE),
                           pic16_aopGet(AOP(right),offset,FALSE,FALSE));
          }
      } else {
        if (AOP_TYPE(left) == AOP_ACC)
          pic16_emitcode("xrl","a,%s",pic16_aopGet(AOP(right),offset,FALSE,FALSE));
        else {
          pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(right),offset));
          pic16_emitpcode(POC_XORWF,pic16_popGet(AOP(left),offset));
/*
          if (IS_AOP_PREG(left)) {
            pic16_emitcode("xrl","a,%s",pic16_aopGet(AOP(left),offset,FALSE,TRUE));
            pic16_aopPut(AOP(result),"a",offset);
          } else
            pic16_emitcode("xrl","%s,a",
                           pic16_aopGet(AOP(left),offset,FALSE,TRUE));
*/
        }
      }
    }
  } else {
    // left & result in different registers
    if(AOP_TYPE(result) == AOP_CRY){
      // result = bit
      // if(size), result in bit
      // if(!size && ifx), conditional oper: if(left ^ right)
      symbol *tlbl = newiTempLabel(NULL);
      int sizer = max(AOP_SIZE(left),AOP_SIZE(right));
      if(size)
        pic16_emitcode("setb","c");
      while(sizer--){
        if((AOP_TYPE(right) == AOP_LIT) &&
           (((lit >> (offset*8)) & 0x0FFL) == 0x00L)){
          MOVA(pic16_aopGet(AOP(left),offset,FALSE,FALSE));
        } else {
          MOVA(pic16_aopGet(AOP(right),offset,FALSE,FALSE));
          pic16_emitcode("xrl","a,%s",
                         pic16_aopGet(AOP(left),offset,FALSE,FALSE));
        }
        pic16_emitcode("jnz","%05d_DS_",tlbl->key+100);
        offset++;
      }
      if(size){
        CLRC;
        pic16_emitcode("","%05d_DS_:",tlbl->key+100);
        pic16_outBitC(result);
      } else if(ifx)
        jmpTrueOrFalse(ifx, tlbl);
    } else for(;(size--);offset++){
      // normal case
      // result = left & right
      if(AOP_TYPE(right) == AOP_LIT){
        int t = (lit >> (offset*8)) & 0x0FFL;
        switch(t) { 
        case 0x00:
          pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offset));
          pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offset));
          pic16_emitcode("movf","%s,w",
                         pic16_aopGet(AOP(left),offset,FALSE,FALSE));
          pic16_emitcode("movwf","%s",
                         pic16_aopGet(AOP(result),offset,FALSE,FALSE));
          break;
        case 0xff:
          pic16_emitpcode(POC_COMFW,pic16_popGet(AOP(left),offset));
          pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offset));
          pic16_emitcode("comf","%s,w",
                         pic16_aopGet(AOP(left),offset,FALSE,FALSE));
          pic16_emitcode("movwf","%s",
                         pic16_aopGet(AOP(result),offset,FALSE,FALSE));
          break;
        default:
          pic16_emitpcode(POC_MOVLW, pic16_popGetLit(t));
          pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(left),offset));
          pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offset));
          pic16_emitcode("movlw","0x%x",t);
          pic16_emitcode("xorwf","%s,w",
                         pic16_aopGet(AOP(left),offset,FALSE,FALSE));
          pic16_emitcode("movwf","%s",
                         pic16_aopGet(AOP(result),offset,FALSE,FALSE));

        }
        continue;
      }

      // faster than result <- left, anl result,right
      // and better if result is SFR
      if (AOP_TYPE(left) == AOP_ACC) {
        pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(right),offset));
        pic16_emitcode("xorwf","%s,w",pic16_aopGet(AOP(right),offset,FALSE,FALSE));
      } else {
        pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(right),offset));
        pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(left),offset));
        pic16_emitcode("movf","%s,w",pic16_aopGet(AOP(right),offset,FALSE,FALSE));
        pic16_emitcode("xorwf","%s,w",pic16_aopGet(AOP(left),offset,FALSE,FALSE));
      }
      if ( AOP_TYPE(result) != AOP_ACC){
        pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offset));
        pic16_emitcode("movwf","%s",pic16_aopGet(AOP(result),offset,FALSE,FALSE));
      }
    }
  }

  release :
    pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
  pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
  pic16_freeAsmop(result,NULL,ic,TRUE);     
}

/*-----------------------------------------------------------------*/
/* genInline - write the inline code out                           */
/*-----------------------------------------------------------------*/
static void genInline (iCode *ic)
{
  char *buffer, *bp, *bp1;
    
        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

        _G.inLine += (!options.asmpeep);

        buffer = bp = bp1 = Safe_calloc(1, strlen(IC_INLINE(ic))+1);
        strcpy(buffer,IC_INLINE(ic));
        
        while((bp1=strstr(bp, "\\n"))) {
          *bp1++ = '\n';
          *bp1++ = ' ';
          bp = bp1;
        }
        bp = bp1 = buffer;

#if 0
  /* This is an experimental code for #pragma inline
     and is temporarily disabled for 2.5.0 release */
        if(asmInlineMap)
        {
          symbol *sym;
          char *s;
          char *cbuf;
          int cblen;

            cbuf = Safe_strdup(buffer);
            cblen = strlen(buffer)+1;
            memset(cbuf, 0, cblen);

            bp = buffer;
            bp1 = cbuf;
            while(*bp) {
              if(*bp != '%')*bp1++ = *bp++;
              else {
                int i;

                  bp++;
                  i = *bp - '0';
                  if(i>elementsInSet(asmInlineMap))break;
                  
                  bp++;
                  s = indexSet(asmInlineMap, i);
                  DEBUGpc("searching symbol s = `%s'", s);
                  sym = findSym(SymbolTab, NULL, s);

                  if(sym->reqv) {
                    strcat(bp1, sym->reqv->operand.symOperand->regs[0]->name);
                  } else {
                    strcat(bp1, sym->rname);
                  }
                  
                  while(*bp1)bp1++;
              }
              
              if(strlen(bp1) > cblen - 16) {
                int i = strlen(cbuf);
                cblen += 50;
                cbuf = realloc(cbuf, cblen);
                memset(cbuf+i, 0, 50);
                bp1 = cbuf + i;
              }
            }
            
            free(buffer);
            buffer = Safe_strdup( cbuf );
            free(cbuf);
            
            bp = bp1 = buffer;
        }
#endif  /* 0 */

        /* emit each line as a code */
        while (*bp) {
                if (*bp == '\n') {
                        *bp++ = '\0';

                        if(*bp1)
                                pic16_addpCode2pBlock(pb, pic16_newpCodeAsmDir(bp1, NULL)); // inline directly, no process
                        bp1 = bp;
                } else {
                        if (*bp == ':') {
                                bp++;
                                *bp = '\0';
                                bp++;

                                /* print label, use this special format with NULL directive
                                 * to denote that the argument should not be indented with tab */
                                pic16_addpCode2pBlock(pb, pic16_newpCodeAsmDir(NULL, bp1)); // inline directly, no process
                                bp1 = bp;
                        } if (*bp == ';') {
                                /* advance to end of line (prevent splitting of comments at ':' */
                                while (*bp && *bp != '\n') {
                                        bp++;
                                } // while
                        } else
                                bp++;
                }
        }

        if ((bp1 != bp) && *bp1)
                pic16_addpCode2pBlock(pb, pic16_newpCodeAsmDir(bp1, NULL)); // inline directly, no process


    Safe_free(buffer);

    _G.inLine -= (!options.asmpeep);
}

/*-----------------------------------------------------------------*/
/* genRRC - rotate right with carry                                */
/*-----------------------------------------------------------------*/
static void genRRC (iCode *ic)
{
  operand *left , *result ;
  int size, offset = 0, same;

  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

  /* rotate right with carry */
  left = IC_LEFT(ic);
  result=IC_RESULT(ic);
  pic16_aopOp (left,ic,FALSE);
  pic16_aopOp (result,ic,TRUE);

  DEBUGpic16_pic16_AopType(__LINE__,left,NULL,result);

  same = pic16_sameRegs(AOP(result),AOP(left));

  size = AOP_SIZE(result);    

  DEBUGpic16_emitcode ("; ***","%s  %d size:%d same:%d",__FUNCTION__,__LINE__,size,same);

  /* get the lsb and put it into the carry */
  pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),size-1));

  offset = 0 ;

  while(size--) {

    if(same) {
      pic16_emitpcode(POC_RRCF, pic16_popGet(AOP(left),offset));
    } else {
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),offset));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset));
    }

    offset++;
  }

  pic16_freeAsmop(left,NULL,ic,TRUE);
  pic16_freeAsmop(result,NULL,ic,TRUE);
}

/*-----------------------------------------------------------------*/
/* genRLC - generate code for rotate left with carry               */
/*-----------------------------------------------------------------*/
static void genRLC (iCode *ic)
{    
  operand *left , *result ;
  int size, offset = 0;
  int same;

  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
  /* rotate right with carry */
  left = IC_LEFT(ic);
  result=IC_RESULT(ic);
  pic16_aopOp (left,ic,FALSE);
  pic16_aopOp (result,ic,TRUE);

  DEBUGpic16_pic16_AopType(__LINE__,left,NULL,result);

  same = pic16_sameRegs(AOP(result),AOP(left));

  /* move it to the result */
  size = AOP_SIZE(result);    

  /* get the msb and put it into the carry */
  pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),size-1));

  offset = 0 ;

  while(size--) {

    if(same) {
      pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(left),offset));
    } else {
      pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),offset));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset));
    }

    offset++;
  }


  pic16_freeAsmop(left,NULL,ic,TRUE);
  pic16_freeAsmop(result,NULL,ic,TRUE);
}


/* gpasm can get the highest order bit with HIGH/UPPER
 * so the following probably is not needed -- VR */
 
/*-----------------------------------------------------------------*/
/* genGetHbit - generates code get highest order bit               */
/*-----------------------------------------------------------------*/
static void genGetHbit (iCode *ic)
{
    operand *left, *result;
    left = IC_LEFT(ic);
    result=IC_RESULT(ic);
    pic16_aopOp (left,ic,FALSE);
    pic16_aopOp (result,ic,FALSE);

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    /* get the highest order byte into a */
    MOVA(pic16_aopGet(AOP(left),AOP_SIZE(left) - 1,FALSE,FALSE));
    if(AOP_TYPE(result) == AOP_CRY){
        pic16_emitcode("rlc","a");
        pic16_outBitC(result);
    }
    else{
        pic16_emitcode("rl","a");
        pic16_emitcode("anl","a,#0x01");
        pic16_outAcc(result);
    }


    pic16_freeAsmop(left,NULL,ic,TRUE);
    pic16_freeAsmop(result,NULL,ic,TRUE);
}

#if 0
/*-----------------------------------------------------------------*/
/* AccRol - rotate left accumulator by known count                 */
/*-----------------------------------------------------------------*/
static void AccRol (int shCount)
{
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    shCount &= 0x0007;              // shCount : 0..7
    switch(shCount){
        case 0 :
            break;
        case 1 :
            pic16_emitcode("rl","a");
            break;
        case 2 :
            pic16_emitcode("rl","a");
            pic16_emitcode("rl","a");
            break;
        case 3 :
            pic16_emitcode("swap","a");
            pic16_emitcode("rr","a");
            break;
        case 4 :
            pic16_emitcode("swap","a");
            break;
        case 5 :
            pic16_emitcode("swap","a");
            pic16_emitcode("rl","a");
            break;
        case 6 :
            pic16_emitcode("rr","a");
            pic16_emitcode("rr","a");
            break;
        case 7 :
            pic16_emitcode("rr","a");
            break;
    }
}
#endif

/*-----------------------------------------------------------------*/
/* AccLsh - left shift accumulator by known count                  */
/*-----------------------------------------------------------------*/
static void AccLsh (int shCount)
{
        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
        switch(shCount){
                case 0 :
                        return;
                        break;
                case 1 :
                        pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
                case 2 :
                        pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
                case 3 :
                        pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
                        pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
                case 4 :
                        pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
                case 5 :
                        pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
                        pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
                case 6 :
                        pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
                case 7 :
                        pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
        }

        pic16_emitpcode(POC_ANDLW,pic16_popGetLit(SLMask[shCount]));
}

/*-----------------------------------------------------------------*/
/* AccRsh - right shift accumulator by known count                 */
/*-----------------------------------------------------------------*/
static void AccRsh (int shCount, int andmask)
{
        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
        switch(shCount){
                case 0 :
                        return; break;
                case 1 :
                        pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
                case 2 :
                        pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
                case 3 :
                        pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
                        pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
                case 4 :
                        pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
                case 5 :
                        pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
                        pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
                case 6 :
                        pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
                case 7 :
                        pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
                        break;
        }
        
        if(andmask)
                pic16_emitpcode(POC_ANDLW,pic16_popGetLit(SRMask[shCount]));
        else
                DEBUGpic16_emitcode("; ***", "%s omitting masking the result", __FUNCTION__);
}

#if 0
/*-----------------------------------------------------------------*/
/* AccSRsh - signed right shift accumulator by known count                 */
/*-----------------------------------------------------------------*/
static void AccSRsh (int shCount)
{
    symbol *tlbl ;
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    if(shCount != 0){
        if(shCount == 1){
            pic16_emitcode("mov","c,acc.7");
            pic16_emitcode("rrc","a");
        } else if(shCount == 2){
            pic16_emitcode("mov","c,acc.7");
            pic16_emitcode("rrc","a");
            pic16_emitcode("mov","c,acc.7");
            pic16_emitcode("rrc","a");
        } else {
            tlbl = newiTempLabel(NULL);
            /* rotate right accumulator */
            AccRol(8 - shCount);
            /* and kill the higher order bits */
            pic16_emitcode("anl","a,#0x%02x", SRMask[shCount]);
            pic16_emitcode("jnb","acc.%d,%05d_DS_",7-shCount,tlbl->key+100);
            pic16_emitcode("orl","a,#0x%02x",
                     (unsigned char)~SRMask[shCount]);
            pic16_emitcode("","%05d_DS_:",tlbl->key+100);
        }
    }
}
#endif

/*-----------------------------------------------------------------*/
/* shiftR1Left2Result - shift right one byte from left to result   */
/*-----------------------------------------------------------------*/
static void shiftR1Left2ResultSigned (operand *left, int offl,
                                operand *result, int offr,
                                int shCount)
{
  int same;

  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

  same = ((left == result) || (AOP(left) == AOP(result))) && (offl == offr);

  switch(shCount) {
  case 1:
    pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),offl));
    if(same) 
      pic16_emitpcode(POC_RRCF, pic16_popGet(AOP(result),offr));
    else {
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    }

    break;
  case 2:

    pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),offl));
    if(same) 
      pic16_emitpcode(POC_RRCF, pic16_popGet(AOP(result),offr));
    else {
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    }
    pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_RRCF,  pic16_popGet(AOP(result),offr));

    break;

  case 3:
    if(same)
      pic16_emitpcode(POC_SWAPF, pic16_popGet(AOP(result),offr));
    else {
      pic16_emitpcode(POC_SWAPFW, pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    }

    pic16_emitpcode(POC_RLNCFW,  pic16_popGet(AOP(result),offr));
    //pic16_emitpcode(POC_RLCFW,  pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0x1f));

    pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(result),offr,FALSE,FALSE),3,0, PO_GPR_REGISTER));
    pic16_emitpcode(POC_IORLW, pic16_popGetLit(0xe0));

    pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    break;

  case 4:
    pic16_emitpcode(POC_SWAPFW, pic16_popGet(AOP(left),offl));
    pic16_emitpcode(POC_ANDLW,  pic16_popGetLit(0x0f));
    pic16_emitpcode(POC_BTFSC,  pic16_newpCodeOpBit(pic16_aopGet(AOP(left),offl,FALSE,FALSE),7,0, PO_GPR_REGISTER));
    pic16_emitpcode(POC_IORLW,  pic16_popGetLit(0xf0));
    pic16_emitpcode(POC_MOVWF,  pic16_popGet(AOP(result),offr));
    break;
  case 5:
    if(same) {
      pic16_emitpcode(POC_SWAPF,  pic16_popGet(AOP(result),offr));
    } else {
      pic16_emitpcode(POC_SWAPFW,  pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF,  pic16_popGet(AOP(result),offr));
    }
    pic16_emitpcode(POC_RRCFW,   pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_ANDLW,  pic16_popGetLit(0x07));
    pic16_emitpcode(POC_BTFSC,  pic16_newpCodeOpBit(pic16_aopGet(AOP(result),offr,FALSE,FALSE),3,0, PO_GPR_REGISTER));
    pic16_emitpcode(POC_IORLW,  pic16_popGetLit(0xf8));
    pic16_emitpcode(POC_MOVWF,  pic16_popGet(AOP(result),offr));
    break;

  case 6:
    if(same) {
      pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0x00));
      pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(left),offl,FALSE,FALSE),7,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0xfe));
      pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(left),offl,FALSE,FALSE),6,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_IORLW, pic16_popGetLit(0x01));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    } else {
      pic16_emitpcode(POC_CLRF,  pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(left),offl,FALSE,FALSE),7,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_SETF,  pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_BTFSS, pic16_newpCodeOpBit(pic16_aopGet(AOP(left),offl,FALSE,FALSE),6,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_BCF,   pic16_newpCodeOpBit(pic16_aopGet(AOP(result),offr,FALSE,FALSE),0,0, PO_GPR_REGISTER));
    }
    break;

  case 7:
    if(same) {
      pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0x00));
      pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(left),LSB,FALSE,FALSE),7,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0xff));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    } else {
      pic16_emitpcode(POC_CLRF,  pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(left),offl,FALSE,FALSE),7,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_SETF,  pic16_popGet(AOP(result),offr));
    }

  default:
    break;
  }
}

/*-----------------------------------------------------------------*/
/* shiftR1Left2Result - shift right one byte from left to result   */
/*-----------------------------------------------------------------*/
static void shiftR1Left2Result (operand *left, int offl,
                                operand *result, int offr,
                                int shCount, int sign)
{
  int same;

  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

  same = ((left == result) || (AOP(left) == AOP(result))) && (offl == offr);

  /* Copy the msb into the carry if signed. */
  if(sign) {
    shiftR1Left2ResultSigned(left,offl,result,offr,shCount);
    return;
  }



  switch(shCount) {
  case 1:
    emitCLRC;
    if(same) 
      pic16_emitpcode(POC_RRCF, pic16_popGet(AOP(result),offr));
    else {
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    }
    break;
  case 2:
    emitCLRC;
    if(same) {
      pic16_emitpcode(POC_RRCF, pic16_popGet(AOP(result),offr));
    } else {
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    }
    emitCLRC;
    pic16_emitpcode(POC_RRCF, pic16_popGet(AOP(result),offr));

    break;
  case 3:
    if(same)
      pic16_emitpcode(POC_SWAPF, pic16_popGet(AOP(result),offr));
    else {
      pic16_emitpcode(POC_SWAPFW, pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    }

    pic16_emitpcode(POC_RLNCFW,  pic16_popGet(AOP(result),offr));
    //pic16_emitpcode(POC_RLCFW,  pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0x1f));
    pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    break;
      
  case 4:
    pic16_emitpcode(POC_SWAPFW, pic16_popGet(AOP(left),offl));
    pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0x0f));
    pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    break;

  case 5:
    pic16_emitpcode(POC_SWAPFW, pic16_popGet(AOP(left),offl));
    pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0x0e));
    pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    //emitCLRC;
    pic16_emitpcode(POC_RRNCF, pic16_popGet(AOP(result),offr));

    break;
  case 6:

    pic16_emitpcode(POC_RLNCFW,  pic16_popGet(AOP(left),offl));
    pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0x81));
    pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    //pic16_emitpcode(POC_RLCF,   pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_RLNCF,   pic16_popGet(AOP(result),offr));
    break;

  case 7:

    pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),offl));
    pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),offr));

    break;

  default:
    break;
  }
}

/*-----------------------------------------------------------------*/
/* shiftL1Left2Result - shift left one byte from left to result    */
/*-----------------------------------------------------------------*/
static void shiftL1Left2Result (operand *left, int offl,
                                operand *result, int offr, int shCount)
{
  int same;

  //    char *l;
  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

  same = ((left == result) || (AOP(left) == AOP(result))) && (offl==offr);
  DEBUGpic16_emitcode ("; ***","same =  %d",same);
    //    l = pic16_aopGet(AOP(left),offl,FALSE,FALSE);
    //    MOVA(l);
    /* shift left accumulator */
    //AccLsh(shCount); // don't comment out just yet...
  //    pic16_aopPut(AOP(result),"a",offr);

  switch(shCount) {
  case 1:
    /* Shift left 1 bit position */
    pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),offl));
    if(same) {
      pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(left),offl));
    } else {
      pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    }
    break;
  case 2:
    pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),offl));
    pic16_emitpcode(POC_ANDLW,pic16_popGetLit(0x7e));
    pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_ADDWF,pic16_popGet(AOP(result),offr));
    break;
  case 3:
    pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),offl));
    pic16_emitpcode(POC_ANDLW,pic16_popGetLit(0x3e));
    pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_ADDWF,pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),offr));
    break;
  case 4:
    pic16_emitpcode(POC_SWAPFW,pic16_popGet(AOP(left),offl));
    pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0xf0));
    pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr));
    break;
  case 5:
    pic16_emitpcode(POC_SWAPFW,pic16_popGet(AOP(left),offl));
    pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0xf0));
    pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_ADDWF,pic16_popGet(AOP(result),offr));
    break;
  case 6:
    pic16_emitpcode(POC_SWAPFW,pic16_popGet(AOP(left),offl));
    pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0x30));
    pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_ADDWF,pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),offr));
    break;
  case 7:
    pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),offl));
    pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_RRCF,  pic16_popGet(AOP(result),offr));
    break;

  default:
    DEBUGpic16_emitcode ("; ***","%s  %d, shift count is %d",__FUNCTION__,__LINE__,shCount);
  }

}

/*-----------------------------------------------------------------*/
/* movLeft2Result - move byte from left to result                  */
/*-----------------------------------------------------------------*/
static void movLeft2Result (operand *left, int offl,
                            operand *result, int offr)
{
  char *l;
  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
  if(!pic16_sameRegs(AOP(left),AOP(result)) || (offl != offr)){
    l = pic16_aopGet(AOP(left),offl,FALSE,FALSE);

    if (*l == '@' && (IS_AOP_PREG(result))) {
      pic16_emitcode("mov","a,%s",l);
      pic16_aopPut(AOP(result),"a",offr);
    } else {
      pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
    }
  }
}

/*-----------------------------------------------------------------*/
/* shiftL2Left2Result - shift left two bytes from left to result   */
/*-----------------------------------------------------------------*/
static void shiftL2Left2Result (operand *left, int offl,
                                operand *result, int offr, int shCount)
{
  int same = pic16_sameRegs(AOP(result), AOP(left));
  int i;

  DEBUGpic16_emitcode ("; ***","%s  %d shCount:%d same:%d offl:%d offr:%d",__FUNCTION__,__LINE__,shCount,same,offl,offr);

  if (same && (offl != offr)) { // shift bytes
    if (offr > offl) {
       for(i=1;i>-1;i--) {
         pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(result),offl+i));
         pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr+i));
       }
    } else { // just treat as different later on
                same = 0;
    }
  }

  if(same) {
    switch(shCount) {
    case 0:
      break;
    case 1:
    case 2:
    case 3:

      pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_ADDWF,pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),offr+MSB16));

      while(--shCount) {
                emitCLRC;
                pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result),offr));
                pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result),offr+MSB16));
      }

      break;
    case 4:
    case 5:
      pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0x0f));
      pic16_emitpcode(POC_ANDWF, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_SWAPF, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_SWAPF, pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_ANDFW, pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_XORWF, pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),offr+MSB16));
      if(shCount >=5) {
                pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result),offr));
                pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result),offr+MSB16));
      }
      break;
    case 6:
      pic16_emitpcode(POC_RRCF,  pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_RRCF,  pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_RRCF,  pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_RRCF,  pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_ANDLW,pic16_popGetLit(0xc0));
      pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_XORWF,pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr+MSB16));
      break;
    case 7:
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_RRCF,  pic16_popGet(AOP(result),offr));
    }

  } else {
    switch(shCount) {
    case 0:
      break;
    case 1:
    case 2:
    case 3:
      /* note, use a mov/add for the shift since the mov has a
         chance of getting optimized out */
      pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_RLCFW,  pic16_popGet(AOP(left),offl+MSB16));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr+MSB16));

      while(--shCount) {
                emitCLRC;
                pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result),offr));
                pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result),offr+MSB16));
      }
      break;

    case 4:
    case 5:
      pic16_emitpcode(POC_SWAPFW,pic16_popGet(AOP(left),offl+MSB16));
      pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0xF0));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_SWAPFW,pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0x0F));
      pic16_emitpcode(POC_XORWF, pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),offr+MSB16));


      if(shCount == 5) {
                pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result),offr));
                pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result),offr+MSB16));
      }
      break;
    case 6:
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),offl+MSB16));
      pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(result),offl));
      pic16_emitpcode(POC_MOVWF,  pic16_popGet(AOP(result),offr));

      pic16_emitpcode(POC_RRCF,  pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_RRCF,  pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_ANDLW,pic16_popGetLit(0xc0));
      pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_XORWF,pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr+MSB16));
      break;
    case 7:
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),offl+MSB16));
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_RRCF,  pic16_popGet(AOP(result),offr));
    }
  }

}
/*-----------------------------------------------------------------*/
/* shiftR2Left2Result - shift right two bytes from left to result  */
/*-----------------------------------------------------------------*/
static void shiftR2Left2Result (operand *left, int offl,
                                operand *result, int offr,
                                int shCount, int sign)
{
  int same = pic16_sameRegs(AOP(result), AOP(left));
  int i;
  DEBUGpic16_emitcode ("; ***","%s  %d shCount:%d same:%d sign:%d",__FUNCTION__,__LINE__,shCount,same,sign);

  if (same && (offl != offr)) { // shift right bytes
    if (offr < offl) {
       for(i=0;i<2;i++) {
         pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(result),offl+i));
         pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr+i));
       }
    } else { // just treat as different later on
                same = 0;
    }
  }

  switch(shCount) {
  case 0:
    break;
  case 1:
  case 2:
  case 3:
    if(sign)
      pic16_emitpcode(POC_RLCFW,pic16_popGet(AOP(result),offr+MSB16));
    else
      emitCLRC;

    if(same) {
      pic16_emitpcode(POC_RRCF,pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_RRCF,pic16_popGet(AOP(result),offr));
    } else {
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),offl+MSB16));
      pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr));
    }

    while(--shCount) {
      if(sign)
                pic16_emitpcode(POC_RLCFW,pic16_popGet(AOP(result),offr+MSB16));
      else
                emitCLRC;
      pic16_emitpcode(POC_RRCF,pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_RRCF,pic16_popGet(AOP(result),offr));
    }
    break;
  case 4:
  case 5:
    if(same) {

      pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0xf0));
      pic16_emitpcode(POC_ANDWF, pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_SWAPF, pic16_popGet(AOP(result),offr));

      pic16_emitpcode(POC_SWAPF, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_ANDFW, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_XORWF, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),offr));
    } else {
      pic16_emitpcode(POC_SWAPFW,pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0x0f));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr));

      pic16_emitpcode(POC_SWAPFW,pic16_popGet(AOP(left),offl+MSB16));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0xf0));
      pic16_emitpcode(POC_XORWF, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),offr));
    }

    if(shCount >=5) {
      pic16_emitpcode(POC_RRCF, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_RRCF, pic16_popGet(AOP(result),offr));
    }

    if(sign) {
      pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0xf0 + (shCount-4)*8 ));
      pic16_emitpcode(POC_BTFSC, 
                pic16_newpCodeOpBit(pic16_aopGet(AOP(result),offr+MSB16,FALSE,FALSE),7-shCount,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),offr+MSB16));
    }

    break;

  case 6:
    if(same) {

      pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),offr+MSB16));

      pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_ANDLW,pic16_popGetLit(0x03));
      if(sign) {
        pic16_emitpcode(POC_BTFSC, 
                  pic16_newpCodeOpBit(pic16_aopGet(AOP(result),offr,FALSE,FALSE),0,0, PO_GPR_REGISTER));
        pic16_emitpcode(POC_IORLW,pic16_popGetLit(0xfc));
      }
      pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_XORWF,pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_XORFW,pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr));
    } else {
      pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),offl));
      pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),offl+MSB16));
      pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),offr));
      pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(result),offr+MSB16));
      pic16_emitpcode(POC_ANDLW,pic16_popGetLit(0x03));
      if(sign) {
        pic16_emitpcode(POC_BTFSC, 
                  pic16_newpCodeOpBit(pic16_aopGet(AOP(result),offr+MSB16,FALSE,FALSE),0,0, PO_GPR_REGISTER));
        pic16_emitpcode(POC_IORLW,pic16_popGetLit(0xfc));
      }
      pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr+MSB16));
      //pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),offr));

        
    }

    break;
  case 7:
    pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),offl));
    pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),offl+MSB16));
    pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offr));
    pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offr+MSB16));
    if(sign) {
      emitSKPNC;
      pic16_emitpcode(POC_DECF, pic16_popGet(AOP(result),offr+MSB16));
    } else 
      pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),offr+MSB16));
  }
}


/*-----------------------------------------------------------------*/
/* shiftLLeftOrResult - shift left one byte from left, or to result*/
/*-----------------------------------------------------------------*/
static void shiftLLeftOrResult (operand *left, int offl,
                                operand *result, int offr, int shCount)
{
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offl));
    /* shift left accumulator */
    AccLsh(shCount);
    /* or with result */
    /* back to result */
    pic16_emitpcode(POC_IORWF,pic16_popGet(AOP(result),offr));
}

/*-----------------------------------------------------------------*/
/* shiftRLeftOrResult - shift right one byte from left,or to result*/
/*-----------------------------------------------------------------*/
static void shiftRLeftOrResult (operand *left, int offl,
                                operand *result, int offr, int shCount)
{
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    
    pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offl));
    /* shift right accumulator */
    AccRsh(shCount, 1);
    /* or with result */
    /* back to result */
    pic16_emitpcode(POC_IORWF,pic16_popGet(AOP(result),offr));
}

/*-----------------------------------------------------------------*/
/* genlshOne - left shift a one byte quantity by known count       */
/*-----------------------------------------------------------------*/
static void genlshOne (operand *result, operand *left, int shCount)
{       
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    shiftL1Left2Result(left, LSB, result, LSB, shCount);
}

/*-----------------------------------------------------------------*/
/* genlshTwo - left shift two bytes by known amount != 0           */
/*-----------------------------------------------------------------*/
static void genlshTwo (operand *result,operand *left, int shCount)
{
    int size;
    
    DEBUGpic16_emitcode ("; ***","%s  %d shCount:%d",__FUNCTION__,__LINE__,shCount);
    size = pic16_getDataSize(result);

    /* if shCount >= 8 */
    if (shCount >= 8) {
        shCount -= 8 ;

        if (size > 1){
            if (shCount)
                shiftL1Left2Result(left, LSB, result, MSB16, shCount);
            else 
                movLeft2Result(left, LSB, result, MSB16);
        }
        pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),LSB));
    }

    /*  1 <= shCount <= 7 */
    else {  
        if(size == 1)
            shiftL1Left2Result(left, LSB, result, LSB, shCount); 
        else 
            shiftL2Left2Result(left, LSB, result, LSB, shCount);
    }
}

/*-----------------------------------------------------------------*/
/* shiftLLong - shift left one long from left to result            */
/* offr = LSB or MSB16                                             */
/*-----------------------------------------------------------------*/
static void shiftLLong (operand *left, operand *result, int offr )
{
    int size = AOP_SIZE(result);
    int same = pic16_sameRegs(AOP(left),AOP(result));
        int i;

    DEBUGpic16_emitcode ("; ***","%s  %d  offr:%d size:%d",__FUNCTION__,__LINE__,offr,size);

        if (same && (offr == MSB16)) { //shift one byte
                for(i=size-1;i>=MSB16;i--) {
                        pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),i-1));
                        pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(left),i));
                }
        } else {
                pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),LSB+offr));
        }
        
    if (size > LSB+offr ){
                if (same) {
                        pic16_emitpcode(POC_ADDWF,pic16_popGet(AOP(left),LSB+offr));
                } else {
                        pic16_emitpcode(POC_ADDFW,pic16_popGet(AOP(left),LSB));
                        pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),LSB+offr));
                }
         }

    if(size > MSB16+offr){
                if (same) {
                        pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(left),MSB16+offr));
                } else {
                        pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),MSB16));
                        pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),MSB16+offr));
                }
    }

    if(size > MSB24+offr){
                if (same) {
                        pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(left),MSB24+offr));
                } else {
                        pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),MSB24));
                        pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),MSB24+offr));
                }
    }

    if(size > MSB32+offr){
                if (same) {
                        pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(left),MSB32+offr));
                } else {
                        pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left),MSB32));
                        pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),MSB32+offr));
                }
    }
    if(offr != LSB)
                pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),LSB));

}

/*-----------------------------------------------------------------*/
/* genlshFour - shift four byte by a known amount != 0             */
/*-----------------------------------------------------------------*/
static void genlshFour (operand *result, operand *left, int shCount)
{
    int size;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    size = AOP_SIZE(result);

    /* if shifting more that 3 bytes */
    if (shCount >= 24 ) {
        shCount -= 24;
        if (shCount)
            /* lowest order of left goes to the highest
            order of the destination */
            shiftL1Left2Result(left, LSB, result, MSB32, shCount);
        else
            movLeft2Result(left, LSB, result, MSB32);

                pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),LSB));
                pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),MSB16));
                pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),MSB24));

        return;
    }

    /* more than two bytes */
    else if ( shCount >= 16 ) {
        /* lower order two bytes goes to higher order two bytes */
        shCount -= 16;
        /* if some more remaining */
        if (shCount)
            shiftL2Left2Result(left, LSB, result, MSB24, shCount);
        else {
            movLeft2Result(left, MSB16, result, MSB32);
            movLeft2Result(left, LSB, result, MSB24);
        }
                pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),LSB));
                pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),MSB16));
        return;
    }    

    /* if more than 1 byte */
    else if ( shCount >= 8 ) {
        /* lower order three bytes goes to higher order  three bytes */
        shCount -= 8;
        if(size == 2){
            if(shCount)
                shiftL1Left2Result(left, LSB, result, MSB16, shCount);
            else
                movLeft2Result(left, LSB, result, MSB16);
        }
        else{   /* size = 4 */
            if(shCount == 0){
                movLeft2Result(left, MSB24, result, MSB32);
                movLeft2Result(left, MSB16, result, MSB24);
                movLeft2Result(left, LSB, result, MSB16);
                                pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),LSB));
            }
            else if(shCount == 1)
                shiftLLong(left, result, MSB16);
            else{
                shiftL2Left2Result(left, MSB16, result, MSB24, shCount);
                shiftL1Left2Result(left, LSB, result, MSB16, shCount);
                shiftRLeftOrResult(left, LSB, result, MSB24, 8 - shCount);
                                pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),LSB));
            }
        }
    }

    /* 1 <= shCount <= 7 */
    else if(shCount <= 3)
    { 
        shiftLLong(left, result, LSB);
        while(--shCount >= 1)
            shiftLLong(result, result, LSB);
    }
    /* 3 <= shCount <= 7, optimize */
    else{
        shiftL2Left2Result(left, MSB24, result, MSB24, shCount);
        shiftRLeftOrResult(left, MSB16, result, MSB24, 8 - shCount);
        shiftL2Left2Result(left, LSB, result, LSB, shCount);
    }
}

/*-----------------------------------------------------------------*/
/* genLeftShiftLiteral - left shifting by known count              */
/*-----------------------------------------------------------------*/
void pic16_genLeftShiftLiteral (operand *left,
                                 operand *right,
                                 operand *result,
                                 iCode *ic)
{    
    int shCount = (int) abs(floatFromVal (AOP(right)->aopu.aop_lit));
    int size;

    FENTRY;
    DEBUGpic16_emitcode ("; ***","shCount:%d", shCount);
    pic16_freeAsmop(right,NULL,ic,TRUE);

    pic16_aopOp(left,ic,FALSE);
    pic16_aopOp(result,ic,TRUE);

    size = getSize(operandType(result));

#if VIEW_SIZE
    pic16_emitcode("; shift left ","result %d, left %d",size,
             AOP_SIZE(left));
#endif

    /* I suppose that the left size >= result size */
    if(shCount == 0){
        while(size--){
            movLeft2Result(left, size, result, size);
        }
    }

    else if(shCount >= (size * 8))
        while(size--)
            pic16_aopPut(AOP(result),zero,size);
    else{
        switch (size) {
            case 1:
                genlshOne (result,left,shCount);
                break;

            case 2:
            case 3:
                genlshTwo (result,left,shCount);
                break;

            case 4:
                genlshFour (result,left,shCount);
                break;
        }
    }
    pic16_freeAsmop(left,NULL,ic,TRUE);
    pic16_freeAsmop(result,NULL,ic,TRUE);
}

/*-----------------------------------------------------------------*
 * genMultiAsm - repeat assembly instruction for size of register.
 * if endian == 1, then the high byte (i.e base address + size of 
 * register) is used first else the low byte is used first;
 *-----------------------------------------------------------------*/
static void genMultiAsm( PIC_OPCODE poc, operand *reg, int size, int endian)
{

  int offset = 0;

  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

  if(!reg)
    return;

  if(!endian) {
    endian = 1;
  } else {
    endian = -1;
    offset = size-1;
  }

  while(size--) {
    pic16_emitpcode(poc,    pic16_popGet(AOP(reg),offset));
    offset += endian;
  }

}

#if !(USE_GENERIC_SIGNED_SHIFT)
/*-----------------------------------------------------------------*/
/* genLeftShift - generates code for left shifting                 */
/*-----------------------------------------------------------------*/
static void genLeftShift (iCode *ic)
{
  operand *left,*right, *result;
  int size, offset;
//  char *l;
  symbol *tlbl , *tlbl1;
  pCodeOp *pctemp;

  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

  right = IC_RIGHT(ic);
  left  = IC_LEFT(ic);
  result = IC_RESULT(ic);

  pic16_aopOp(right,ic,FALSE);

  /* if the shift count is known then do it 
     as efficiently as possible */
  if (AOP_TYPE(right) == AOP_LIT) {
    pic16_genLeftShiftLiteral (left,right,result,ic);
    return ;
  }

  /* shift count is unknown then we have to form
   * a loop. Get the loop count in WREG : Note: we take
   * only the lower order byte since shifting
   * more than 32 bits make no sense anyway, ( the
   * largest size of an object can be only 32 bits ) */
  
  pic16_aopOp(left,ic,FALSE);
  pic16_aopOp(result,ic,FALSE);

  /* now move the left to the result if they are not the
   * same, and if size > 1,
   * and if right is not same to result (!!!) -- VR */
  if (!pic16_sameRegs(AOP(left),AOP(result))
      && (AOP_SIZE(result) > 1)) {

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    size = AOP_SIZE(result);
    offset=0;
    while (size--) {

#if 0
      l = pic16_aopGet(AOP(left),offset,FALSE,TRUE);
      if (*l == '@' && (IS_AOP_PREG(result))) {

          pic16_emitcode("mov","a,%s",l);
          pic16_aopPut(AOP(result),"a",offset);
      } else
#endif
      {
        /* we don't know if left is a literal or a register, take care -- VR */
        pic16_mov2f(AOP(result), AOP(left), offset);
      }
      offset++;
    }
  }

  size = AOP_SIZE(result);

  /* if it is only one byte then */
  if (size == 1) {
    if(optimized_for_speed) {
      pic16_emitpcode(POC_SWAPFW, pic16_popGet(AOP(left),0));
      pic16_emitpcode(POC_ANDLW,  pic16_popGetLit(0xf0));
      pic16_emitpcode(POC_BTFSS,  pic16_newpCodeOpBit(pic16_aopGet(AOP(right),0,FALSE,FALSE),2,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_MOVFW,  pic16_popGet(AOP(left),0));
      pic16_emitpcode(POC_MOVWF,  pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_BTFSS,  pic16_newpCodeOpBit(pic16_aopGet(AOP(right),0,FALSE,FALSE),0,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_ADDWF,  pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_RLCFW,   pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_ANDLW,  pic16_popGetLit(0xfe));
      pic16_emitpcode(POC_ADDFW,  pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_BTFSC,  pic16_newpCodeOpBit(pic16_aopGet(AOP(right),0,FALSE,FALSE),1,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_ADDWF,  pic16_popGet(AOP(result),0));
    } else {

      DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

      tlbl = newiTempLabel(NULL);

#if 1
      /* this is already done, why change it? */
      if (!pic16_sameRegs(AOP(left),AOP(result))) {
                pic16_mov2f(AOP(result), AOP(left), 0);
      }
#endif

      pic16_emitpcode(POC_COMFW,  pic16_popGet(AOP(right),0));
      pic16_emitpcode(POC_RRCF,    pic16_popGet(AOP(result),0));
      pic16_emitpLabel(tlbl->key);
      pic16_emitpcode(POC_RLCF,    pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_ADDLW,  pic16_popGetLit(1));
      emitSKPC;
      pic16_emitpcode(POC_GOTO,pic16_popGetLabel(tlbl->key));
    }
    goto release ;
  }
    
  if (pic16_sameRegs(AOP(left),AOP(result))) {

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    
    tlbl = newiTempLabel(NULL);
    pic16_emitpcode(POC_COMFW,  pic16_popGet(AOP(right),0));
    genMultiAsm(POC_RRCF, result, size,1);
    pic16_emitpLabel(tlbl->key);
    genMultiAsm(POC_RLCF, result, size,0);
    pic16_emitpcode(POC_ADDLW,  pic16_popGetLit(1));
    emitSKPC;
    pic16_emitpcode(POC_GOTO,pic16_popGetLabel(tlbl->key));
    goto release;
  }

  //tlbl = newiTempLabel(NULL);
  //offset = 0 ;   
  //tlbl1 = newiTempLabel(NULL);

  //reAdjustPreg(AOP(result));    
    
  //pic16_emitcode("sjmp","%05d_DS_",tlbl1->key+100); 
  //pic16_emitcode("","%05d_DS_:",tlbl->key+100);    
  //l = pic16_aopGet(AOP(result),offset,FALSE,FALSE);
  //MOVA(l);
  //pic16_emitcode("add","a,acc");         
  //pic16_aopPut(AOP(result),"a",offset++);
  //while (--size) {
  //  l = pic16_aopGet(AOP(result),offset,FALSE,FALSE);
  //  MOVA(l);
  //  pic16_emitcode("rlc","a");         
  //  pic16_aopPut(AOP(result),"a",offset++);
  //}
  //reAdjustPreg(AOP(result));

  //pic16_emitcode("","%05d_DS_:",tlbl1->key+100);
  //pic16_emitcode("djnz","b,%05d_DS_",tlbl->key+100);


  tlbl = newiTempLabel(NULL);
  tlbl1= newiTempLabel(NULL);

  size = AOP_SIZE(result);
  offset = 1;

  pctemp = pic16_popGetTempReg(1);  /* grab a temporary working register. */

  pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),0));

  /* offset should be 0, 1 or 3 */
  
  pic16_emitpcode(POC_ANDLW, pic16_popGetLit((size<<3)-1));
  emitSKPNZ;
  pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(tlbl1->key));

  pic16_emitpcode(POC_MOVWF, pctemp);


  pic16_emitpLabel(tlbl->key);

  emitCLRC;
  pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),0));
  while(--size)
    pic16_emitpcode(POC_RLCF,   pic16_popGet(AOP(result),offset++));

  pic16_emitpcode(POC_DECFSZ,  pctemp);
  pic16_emitpcode(POC_GOTO,pic16_popGetLabel(tlbl->key));
  pic16_emitpLabel(tlbl1->key);

  pic16_popReleaseTempReg(pctemp,1);


 release:
  pic16_freeAsmop (right,NULL,ic,TRUE);
  pic16_freeAsmop(left,NULL,ic,TRUE);
  pic16_freeAsmop(result,NULL,ic,TRUE);
}
#endif


#if 0
#error old code (left here for reference)
/*-----------------------------------------------------------------*/
/* genLeftShift - generates code for left shifting                 */
/*-----------------------------------------------------------------*/
static void genLeftShift (iCode *ic)
{
  operand *left,*right, *result;
  int size, offset;
  char *l;
  symbol *tlbl , *tlbl1;
  pCodeOp *pctemp;

  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

  right = IC_RIGHT(ic);
  left  = IC_LEFT(ic);
  result = IC_RESULT(ic);

  pic16_aopOp(right,ic,FALSE);

  /* if the shift count is known then do it 
     as efficiently as possible */
  if (AOP_TYPE(right) == AOP_LIT) {
    pic16_genLeftShiftLiteral (left,right,result,ic);
    return ;
  }

  /* shift count is unknown then we have to form 
     a loop get the loop count in B : Note: we take
     only the lower order byte since shifting
     more that 32 bits make no sense anyway, ( the
     largest size of an object can be only 32 bits ) */  

    
  pic16_aopOp(left,ic,FALSE);
  pic16_aopOp(result,ic,FALSE);

  /* now move the left to the result if they are not the
     same */
  if (!pic16_sameRegs(AOP(left),AOP(result)) && 
      AOP_SIZE(result) > 1) {

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    size = AOP_SIZE(result);
    offset=0;
    while (size--) {
      l = pic16_aopGet(AOP(left),offset,FALSE,TRUE);
      if (*l == '@' && (IS_AOP_PREG(result))) {

        pic16_emitcode("mov","a,%s",l);
        pic16_aopPut(AOP(result),"a",offset);
      } else {

        /* we don't know if left is a literal or a register, take care -- VR */
        pic16_mov2f(AOP(result), AOP(left), offset);
      }
      offset++;
    }
  }

  size = AOP_SIZE(result);

  /* if it is only one byte then */
  if (size == 1) {
    if(optimized_for_speed) {
      pic16_emitpcode(POC_SWAPFW, pic16_popGet(AOP(left),0));
      pic16_emitpcode(POC_ANDLW,  pic16_popGetLit(0xf0));
      pic16_emitpcode(POC_BTFSS,  pic16_newpCodeOpBit(pic16_aopGet(AOP(right),0,FALSE,FALSE),2,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_MOVFW,  pic16_popGet(AOP(left),0));
      pic16_emitpcode(POC_MOVWF,  pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_BTFSS,  pic16_newpCodeOpBit(pic16_aopGet(AOP(right),0,FALSE,FALSE),0,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_ADDWF,  pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_RLCFW,   pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_ANDLW,  pic16_popGetLit(0xfe));
      pic16_emitpcode(POC_ADDFW,  pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_BTFSC,  pic16_newpCodeOpBit(pic16_aopGet(AOP(right),0,FALSE,FALSE),1,0, PO_GPR_REGISTER));
      pic16_emitpcode(POC_ADDWF,  pic16_popGet(AOP(result),0));
    } else {

      DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

      tlbl = newiTempLabel(NULL);
      if (!pic16_sameRegs(AOP(left),AOP(result))) {
                pic16_mov2f(AOP(result), AOP(left), 0);
                
//              pic16_emitpcode(POC_MOVFW,  pic16_popGet(AOP(left),0));
//              pic16_emitpcode(POC_MOVWF,  pic16_popGet(AOP(result),0));
      }

      pic16_emitpcode(POC_COMFW,  pic16_popGet(AOP(right),0));
      pic16_emitpcode(POC_RRCF,    pic16_popGet(AOP(result),0));
      pic16_emitpLabel(tlbl->key);
      pic16_emitpcode(POC_RLCF,    pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_ADDLW,  pic16_popGetLit(1));
      emitSKPC;
      pic16_emitpcode(POC_GOTO,pic16_popGetLabel(tlbl->key));
    }
    goto release ;
  }
    
  if (pic16_sameRegs(AOP(left),AOP(result))) {

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    
    tlbl = newiTempLabel(NULL);
    pic16_emitpcode(POC_COMFW,  pic16_popGet(AOP(right),0));
    genMultiAsm(POC_RRCF, result, size,1);
    pic16_emitpLabel(tlbl->key);
    genMultiAsm(POC_RLCF, result, size,0);
    pic16_emitpcode(POC_ADDLW,  pic16_popGetLit(1));
    emitSKPC;
    pic16_emitpcode(POC_GOTO,pic16_popGetLabel(tlbl->key));
    goto release;
  }

  //tlbl = newiTempLabel(NULL);
  //offset = 0 ;   
  //tlbl1 = newiTempLabel(NULL);

  //reAdjustPreg(AOP(result));    
    
  //pic16_emitcode("sjmp","%05d_DS_",tlbl1->key+100); 
  //pic16_emitcode("","%05d_DS_:",tlbl->key+100);    
  //l = pic16_aopGet(AOP(result),offset,FALSE,FALSE);
  //MOVA(l);
  //pic16_emitcode("add","a,acc");         
  //pic16_aopPut(AOP(result),"a",offset++);
  //while (--size) {
  //  l = pic16_aopGet(AOP(result),offset,FALSE,FALSE);
  //  MOVA(l);
  //  pic16_emitcode("rlc","a");         
  //  pic16_aopPut(AOP(result),"a",offset++);
  //}
  //reAdjustPreg(AOP(result));

  //pic16_emitcode("","%05d_DS_:",tlbl1->key+100);
  //pic16_emitcode("djnz","b,%05d_DS_",tlbl->key+100);


  tlbl = newiTempLabel(NULL);
  tlbl1= newiTempLabel(NULL);

  size = AOP_SIZE(result);
  offset = 1;

  pctemp = pic16_popGetTempReg(1);  /* grab a temporary working register. */

  pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),0));

  /* offset should be 0, 1 or 3 */
  
  pic16_emitpcode(POC_ANDLW, pic16_popGetLit((size<<3)-1));
  emitSKPNZ;
  pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(tlbl1->key));

  pic16_emitpcode(POC_MOVWF, pctemp);


  pic16_emitpLabel(tlbl->key);

  emitCLRC;
  pic16_emitpcode(POC_RLCF,  pic16_popGet(AOP(result),0));
  while(--size)
    pic16_emitpcode(POC_RLCF,   pic16_popGet(AOP(result),offset++));

  pic16_emitpcode(POC_DECFSZ,  pctemp);
  pic16_emitpcode(POC_GOTO,pic16_popGetLabel(tlbl->key));
  pic16_emitpLabel(tlbl1->key);

  pic16_popReleaseTempReg(pctemp,1);


 release:
  pic16_freeAsmop (right,NULL,ic,TRUE);
  pic16_freeAsmop(left,NULL,ic,TRUE);
  pic16_freeAsmop(result,NULL,ic,TRUE);
}
#endif

/*-----------------------------------------------------------------*/
/* genrshOne - right shift a one byte quantity by known count      */
/*-----------------------------------------------------------------*/
static void genrshOne (operand *result, operand *left,
                       int shCount, int sign)
{
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    shiftR1Left2Result(left, LSB, result, LSB, shCount, sign);
}

/*-----------------------------------------------------------------*/
/* genrshTwo - right shift two bytes by known amount != 0          */
/*-----------------------------------------------------------------*/
static void genrshTwo (operand *result,operand *left,
                       int shCount, int sign)
{
  DEBUGpic16_emitcode ("; ***","%s  %d shCount:%d",__FUNCTION__,__LINE__,shCount);
  /* if shCount >= 8 */
  if (shCount >= 8) {
    shCount -= 8 ;
    if (shCount)
      shiftR1Left2Result(left, MSB16, result, LSB,
                         shCount, sign);
    else
      movLeft2Result(left, MSB16, result, LSB);

    pic16_addSign (result, 1, sign);
  }

  /*  1 <= shCount <= 7 */
  else
    shiftR2Left2Result(left, LSB, result, LSB, shCount, sign); 
}

/*-----------------------------------------------------------------*/
/* shiftRLong - shift right one long from left to result           */
/* offl = LSB or MSB16                                             */
/*-----------------------------------------------------------------*/
static void shiftRLong (operand *left, int offl,
                        operand *result, int sign)
{
    int size = AOP_SIZE(result);
    int same = pic16_sameRegs(AOP(left),AOP(result));
    int i;
    DEBUGpic16_emitcode ("; ***","%s  %d  offl:%d size:%d",__FUNCTION__,__LINE__,offl,size);

        if (same && (offl == MSB16)) { //shift one byte right
                for(i=MSB16;i<size;i++) {
                        pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),i));
                        pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(left),i-1));
                }
        }

    if(sign)
                pic16_emitpcode(POC_RLCFW,pic16_popGet(AOP(left),MSB32));
        else
                emitCLRC;

        if (same) {
                if (offl == LSB)
                pic16_emitpcode(POC_RRCF, pic16_popGet(AOP(left),MSB32));
        } else {
        pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),MSB32));
        pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),MSB32-offl));
        }

    if(offl == MSB16) {
        /* add sign of "a" */
        pic16_addSign(result, MSB32, sign);
        }

        if (same) {
        pic16_emitpcode(POC_RRCF, pic16_popGet(AOP(left),MSB24));
        } else {
        pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),MSB24));
        pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),MSB24-offl));
        }
        
        if (same) {
        pic16_emitpcode(POC_RRCF, pic16_popGet(AOP(left),MSB16));
        } else {
        pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),MSB16));
        pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),MSB16-offl));
        }

        if (same) {
        pic16_emitpcode(POC_RRCF, pic16_popGet(AOP(left),LSB));
        } else {
        if(offl == LSB){
                pic16_emitpcode(POC_RRCFW, pic16_popGet(AOP(left),LSB));
                pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),LSB));
        }
        }
}

/*-----------------------------------------------------------------*/
/* genrshFour - shift four byte by a known amount != 0             */
/*-----------------------------------------------------------------*/
static void genrshFour (operand *result, operand *left,
                        int shCount, int sign)
{
  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
  /* if shifting more that 3 bytes */
  if(shCount >= 24 ) {
    shCount -= 24;
    if(shCount)
      shiftR1Left2Result(left, MSB32, result, LSB, shCount, sign);
    else
      movLeft2Result(left, MSB32, result, LSB);

    pic16_addSign(result, MSB16, sign);
  }
  else if(shCount >= 16){
    shCount -= 16;
    if(shCount)
      shiftR2Left2Result(left, MSB24, result, LSB, shCount, sign);
    else{
      movLeft2Result(left, MSB24, result, LSB);
      movLeft2Result(left, MSB32, result, MSB16);
    }
    pic16_addSign(result, MSB24, sign);
  }
  else if(shCount >= 8){
    shCount -= 8;
    if(shCount == 1)
      shiftRLong(left, MSB16, result, sign);
    else if(shCount == 0){
      movLeft2Result(left, MSB16, result, LSB);
      movLeft2Result(left, MSB24, result, MSB16);
      movLeft2Result(left, MSB32, result, MSB24);
      pic16_addSign(result, MSB32, sign);
    }
    else{ //shcount >= 2
      shiftR2Left2Result(left, MSB16, result, LSB, shCount, 0);
      shiftLLeftOrResult(left, MSB32, result, MSB16, 8 - shCount);
      /* the last shift is signed */
      shiftR1Left2Result(left, MSB32, result, MSB24, shCount, sign);
      pic16_addSign(result, MSB32, sign);
    }
  }
  else{   /* 1 <= shCount <= 7 */
    if(shCount <= 2){
      shiftRLong(left, LSB, result, sign);
      if(shCount == 2)
        shiftRLong(result, LSB, result, sign);
    }
    else{
      shiftR2Left2Result(left, LSB, result, LSB, shCount, 0);
      shiftLLeftOrResult(left, MSB24, result, MSB16, 8 - shCount);
      shiftR2Left2Result(left, MSB24, result, MSB24, shCount, sign);
    }
  }
}

/*-----------------------------------------------------------------*/
/* genRightShiftLiteral - right shifting by known count            */
/*-----------------------------------------------------------------*/
static void genRightShiftLiteral (operand *left,
                                  operand *right,
                                  operand *result,
                                  iCode *ic,
                                  int sign)
{    
  int shCount = (int) abs(floatFromVal (AOP(right)->aopu.aop_lit));
  int lsize,res_size;

  pic16_freeAsmop(right,NULL,ic,TRUE);

  pic16_aopOp(left,ic,FALSE);
  pic16_aopOp(result,ic,TRUE);

  DEBUGpic16_emitcode ("; ***","%s  %d shCount:%d result:%d left:%d",__FUNCTION__,__LINE__,shCount,AOP_SIZE(result),AOP_SIZE(left));

#if VIEW_SIZE
  pic16_emitcode("; shift right ","result %d, left %d",AOP_SIZE(result),
                 AOP_SIZE(left));
#endif

  lsize = pic16_getDataSize(left);
  res_size = pic16_getDataSize(result);
  /* test the LEFT size !!! */

  /* I suppose that the left size >= result size */
  if(shCount == 0){
    assert (res_size <= lsize);
    while (res_size--) {
      pic16_mov2f (AOP(result), AOP(left), res_size);
    } // for
  }

  else if(shCount >= (lsize * 8)){

    if(res_size == 1) {
      pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),LSB));
      if(sign) {
        pic16_emitpcode(POC_BTFSC,pic16_newpCodeOpBit(pic16_aopGet(AOP(left),lsize-1,FALSE,FALSE),7,0, PO_GPR_REGISTER));
        pic16_emitpcode(POC_SETF, pic16_popGet(AOP(result),LSB));
      }
    } else {

      if(sign) {
        pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0));
        pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(left),lsize-1,FALSE,FALSE),7,0, PO_GPR_REGISTER));
        pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0xff));
        while(res_size--)
          pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),res_size));

      } else {

        while(res_size--)
          pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),res_size));
      }
    }
  } else {

    switch (res_size) {
    case 1:
      genrshOne (result,left,shCount,sign);
      break;

    case 2:
      genrshTwo (result,left,shCount,sign);
      break;

    case 4:
      genrshFour (result,left,shCount,sign);
      break;
    default :
      break;
    }

  }

  pic16_freeAsmop(left,NULL,ic,TRUE);
  pic16_freeAsmop(result,NULL,ic,TRUE);
}

#if !(USE_GENERIC_SIGNED_SHIFT)
/*-----------------------------------------------------------------*/
/* genSignedRightShift - right shift of signed number              */
/*-----------------------------------------------------------------*/
static void genSignedRightShift (iCode *ic)
{
  operand *right, *left, *result;
  int size, offset;
  //  char *l;
  symbol *tlbl, *tlbl1 ;
  pCodeOp *pctemp;

  //same = ((left == result) || (AOP(left) == AOP(result))) && (offl == offr);

  /* we do it the hard way put the shift count in b
     and loop thru preserving the sign */
  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

  right = IC_RIGHT(ic);
  left  = IC_LEFT(ic);
  result = IC_RESULT(ic);

  pic16_aopOp(right,ic,FALSE);  
  pic16_aopOp(left,ic,FALSE);
  pic16_aopOp(result,ic,FALSE);


  if ( AOP_TYPE(right) == AOP_LIT) {
    genRightShiftLiteral (left,right,result,ic,1);
    return ;
  }
  /* shift count is unknown then we have to form 
     a loop get the loop count in B : Note: we take
     only the lower order byte since shifting
     more that 32 bits make no sense anyway, ( the
     largest size of an object can be only 32 bits ) */  

  //pic16_emitcode("mov","b,%s",pic16_aopGet(AOP(right),0,FALSE,FALSE));
  //pic16_emitcode("inc","b");
  //pic16_freeAsmop (right,NULL,ic,TRUE);
  //pic16_aopOp(left,ic,FALSE);
  //pic16_aopOp(result,ic,FALSE);

  /* now move the left to the result if they are not the
     same */
  if (!pic16_sameRegs(AOP(left),AOP(result)) && 
      AOP_SIZE(result) > 1) {

    size = AOP_SIZE(result);
    offset=0;
    while (size--) { 
      /*
        l = pic16_aopGet(AOP(left),offset,FALSE,TRUE);
        if (*l == '@' && IS_AOP_PREG(result)) {

        pic16_emitcode("mov","a,%s",l);
        pic16_aopPut(AOP(result),"a",offset);
        } else
        pic16_aopPut(AOP(result),l,offset);
      */
      pic16_emitpcode(POC_MOVFW,  pic16_popGet(AOP(left),offset));
      pic16_emitpcode(POC_MOVWF,  pic16_popGet(AOP(result),offset));

      offset++;
    }
  }

  /* mov the highest order bit to OVR */    
  tlbl = newiTempLabel(NULL);
  tlbl1= newiTempLabel(NULL);

  size = AOP_SIZE(result);
  offset = size - 1;

  pctemp = pic16_popGetTempReg(1);  /* grab a temporary working register. */

  pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),0));

  /* offset should be 0, 1 or 3 */
  pic16_emitpcode(POC_ANDLW, pic16_popGetLit(0x07 + ((offset&3) << 3)));
  emitSKPNZ;
  pic16_emitpcode(POC_GOTO,  pic16_popGetLabel(tlbl1->key));

  pic16_emitpcode(POC_MOVWF, pctemp);


  pic16_emitpLabel(tlbl->key);

  pic16_emitpcode(POC_RLCFW,  pic16_popGet(AOP(result),offset));
  pic16_emitpcode(POC_RRCF,   pic16_popGet(AOP(result),offset));

  while(--size) {
    pic16_emitpcode(POC_RRCF,   pic16_popGet(AOP(result),--offset));
  }

  pic16_emitpcode(POC_DECFSZ,  pctemp);
  pic16_emitpcode(POC_GOTO,pic16_popGetLabel(tlbl->key));
  pic16_emitpLabel(tlbl1->key);

  pic16_popReleaseTempReg(pctemp,1);
#if 0
  size = AOP_SIZE(result);
  offset = size - 1;
  pic16_emitcode("mov","a,%s",pic16_aopGet(AOP(left),offset,FALSE,FALSE));
  pic16_emitcode("rlc","a");
  pic16_emitcode("mov","ov,c");
  /* if it is only one byte then */
  if (size == 1) {
    l = pic16_aopGet(AOP(left),0,FALSE,FALSE);
    MOVA(l);
    pic16_emitcode("sjmp","%05d_DS_",tlbl1->key+100);
    pic16_emitcode("","%05d_DS_:",tlbl->key+100);
    pic16_emitcode("mov","c,ov");
    pic16_emitcode("rrc","a");
    pic16_emitcode("","%05d_DS_:",tlbl1->key+100);
    pic16_emitcode("djnz","b,%05d_DS_",tlbl->key+100);
    pic16_aopPut(AOP(result),"a",0);
    goto release ;
  }

  reAdjustPreg(AOP(result));
  pic16_emitcode("sjmp","%05d_DS_",tlbl1->key+100);
  pic16_emitcode("","%05d_DS_:",tlbl->key+100);    
  pic16_emitcode("mov","c,ov");
  while (size--) {
    l = pic16_aopGet(AOP(result),offset,FALSE,FALSE);
    MOVA(l);
    pic16_emitcode("rrc","a");         
    pic16_aopPut(AOP(result),"a",offset--);
  }
  reAdjustPreg(AOP(result));
  pic16_emitcode("","%05d_DS_:",tlbl1->key+100);
  pic16_emitcode("djnz","b,%05d_DS_",tlbl->key+100);

 release:
#endif

  pic16_freeAsmop(left,NULL,ic,TRUE);
  pic16_freeAsmop(result,NULL,ic,TRUE);
  pic16_freeAsmop(right,NULL,ic,TRUE);
}
#endif

#if !(USE_GENERIC_SIGNED_SHIFT)
#warning This implementation of genRightShift() is incomplete!
/*-----------------------------------------------------------------*/
/* genRightShift - generate code for right shifting                */
/*-----------------------------------------------------------------*/
static void genRightShift (iCode *ic)
{
    operand *right, *left, *result;
    sym_link *letype ;
    int size, offset;
    char *l;
    symbol *tlbl, *tlbl1 ;

    /* if signed then we do it the hard way preserve the
    sign bit moving it inwards */
    letype = getSpec(operandType(IC_LEFT(ic)));
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    if (!SPEC_USIGN(letype)) {
        genSignedRightShift (ic);
        return ;
    }

    /* signed & unsigned types are treated the same : i.e. the
    signed is NOT propagated inwards : quoting from the
    ANSI - standard : "for E1 >> E2, is equivalent to division
    by 2**E2 if unsigned or if it has a non-negative value,
    otherwise the result is implementation defined ", MY definition
    is that the sign does not get propagated */

    right = IC_RIGHT(ic);
    left  = IC_LEFT(ic);
    result = IC_RESULT(ic);

    pic16_aopOp(right,ic,FALSE);

    /* if the shift count is known then do it 
    as efficiently as possible */
    if (AOP_TYPE(right) == AOP_LIT) {
        genRightShiftLiteral (left,right,result,ic, 0);
        return ;
    }

    /* shift count is unknown then we have to form 
    a loop get the loop count in B : Note: we take
    only the lower order byte since shifting
    more that 32 bits make no sense anyway, ( the
    largest size of an object can be only 32 bits ) */  

    pic16_emitcode("mov","b,%s",pic16_aopGet(AOP(right),0,FALSE,FALSE));
    pic16_emitcode("inc","b");
    pic16_aopOp(left,ic,FALSE);
    pic16_aopOp(result,ic,FALSE);

    /* now move the left to the result if they are not the
    same */
    if (!pic16_sameRegs(AOP(left),AOP(result)) && 
        AOP_SIZE(result) > 1) {

        size = AOP_SIZE(result);
        offset=0;
        while (size--) {
            l = pic16_aopGet(AOP(left),offset,FALSE,TRUE);
            if (*l == '@' && IS_AOP_PREG(result)) {

                pic16_emitcode("mov","a,%s",l);
                pic16_aopPut(AOP(result),"a",offset);
            } else
                pic16_aopPut(AOP(result),l,offset);
            offset++;
        }
    }

    tlbl = newiTempLabel(NULL);
    tlbl1= newiTempLabel(NULL);
    size = AOP_SIZE(result);
    offset = size - 1;

    /* if it is only one byte then */
    if (size == 1) {

      tlbl = newiTempLabel(NULL);
      if (!pic16_sameRegs(AOP(left),AOP(result))) {
        pic16_emitpcode(POC_MOVFW,  pic16_popGet(AOP(left),0));
        pic16_emitpcode(POC_MOVWF,  pic16_popGet(AOP(result),0));
      }

      pic16_emitpcode(POC_COMFW,  pic16_popGet(AOP(right),0));
      pic16_emitpcode(POC_RLCF,    pic16_popGet(AOP(result),0));
      pic16_emitpLabel(tlbl->key);
      pic16_emitpcode(POC_RRCF,    pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_ADDLW,  pic16_popGetLit(1));
      emitSKPC;
      pic16_emitpcode(POC_GOTO,pic16_popGetLabel(tlbl->key));

      goto release ;
    }

    reAdjustPreg(AOP(result));
    pic16_emitcode("sjmp","%05d_DS_",tlbl1->key+100);
    pic16_emitcode("","%05d_DS_:",tlbl->key+100);    
    CLRC;
    while (size--) {
        l = pic16_aopGet(AOP(result),offset,FALSE,FALSE);
        MOVA(l);
        pic16_emitcode("rrc","a");         
        pic16_aopPut(AOP(result),"a",offset--);
    }
    reAdjustPreg(AOP(result));

    pic16_emitcode("","%05d_DS_:",tlbl1->key+100);
    pic16_emitcode("djnz","b,%05d_DS_",tlbl->key+100);

release:
    pic16_freeAsmop(left,NULL,ic,TRUE);
    pic16_freeAsmop (right,NULL,ic,TRUE);
    pic16_freeAsmop(result,NULL,ic,TRUE);
}
#endif

#if (USE_GENERIC_SIGNED_SHIFT)
/*-----------------------------------------------------------------*/
/* genGenericShift - generates code for left or right shifting     */
/*-----------------------------------------------------------------*/
static void genGenericShift (iCode *ic, int isShiftLeft) {
  operand *left,*right, *result;
  int offset;
  int sign, signedCount;
  symbol *label_complete, *label_loop_pos, *label_loop_neg, *label_negative;
  PIC_OPCODE pos_shift, neg_shift;

  FENTRY;

  right = IC_RIGHT(ic);
  left  = IC_LEFT(ic);
  result = IC_RESULT(ic);

  pic16_aopOp(right,ic,FALSE);
  pic16_aopOp(left,ic,FALSE);
  pic16_aopOp(result,ic,TRUE);

  sign = !SPEC_USIGN(operandType (left));
  signedCount = !SPEC_USIGN(operandType (right));

  /* if the shift count is known then do it 
     as efficiently as possible */
  if (AOP_TYPE(right) == AOP_LIT) {
    long lit = (long)floatFromVal(AOP(right)->aopu.aop_lit);
    if (signedCount && lit < 0) { lit = -lit; isShiftLeft = !isShiftLeft; }
    // we should modify right->aopu.aop_lit here!
    // Instead we use abs(shCount) in genXXXShiftLiteral()...
    // lit > 8*size is handled in pic16_genXXXShiftLiteral()
    if (isShiftLeft)
      pic16_genLeftShiftLiteral (left,right,result,ic);
    else
      genRightShiftLiteral (left,right,result,ic, sign);

    goto release;
  } // if (right is literal)

  /* shift count is unknown then we have to form a loop.
   * Note: we take only the lower order byte since shifting
   * more than 32 bits make no sense anyway, ( the
   * largest size of an object can be only 32 bits )
   * Note: we perform arithmetic shifts if the left operand is
   * signed and we do an (effective) right shift, i. e. we
   * shift in the sign bit from the left. */
   
  label_complete = newiTempLabel ( NULL );
  label_loop_pos = newiTempLabel ( NULL );
  label_loop_neg = NULL;
  label_negative = NULL;
  pos_shift = isShiftLeft ? POC_RLCF : POC_RRCF;
  neg_shift = isShiftLeft ? POC_RRCF : POC_RLCF;

  if (signedCount) {
    // additional labels needed
    label_loop_neg = newiTempLabel ( NULL );
    label_negative = newiTempLabel ( NULL );
  } // if

  // copy source to result -- this will effectively truncate the left operand to the size of result!
  // (e.g. char c = 0x100 << -3 will become c = 0x00 >> 3 == 0x00 instad of 0x20)
  // This is fine, as it only occurs for left shifting with negative count which is not standardized!
  for (offset=0; offset < min(AOP_SIZE(left), AOP_SIZE(result)); offset++) {
    pic16_mov2f (AOP(result),AOP(left), offset);
  } // for

  // if result is longer than left, fill with zeros (or sign)
  if (AOP_SIZE(left) < AOP_SIZE(result)) {
    if (sign && AOP_SIZE(left) > 0) {
      // shift signed operand -- fill with sign
      pic16_emitpcode (POC_CLRF, pic16_popCopyReg (&pic16_pc_wreg));
      pic16_emitpcode (POC_BTFSC, pic16_popCopyGPR2Bit(pic16_popGet(AOP(result), AOP_SIZE(left)-1), 7));
      pic16_emitpcode (POC_MOVLW, pic16_popGetLit (0xFF));
      for (offset=AOP_SIZE(left); offset < AOP_SIZE(result); offset++) {
        pic16_emitpcode (POC_MOVWF, pic16_popGet (AOP(result), offset));
      } // for
    } else {
      // shift unsigned operand -- fill result with zeros
      for (offset=AOP_SIZE(left); offset < AOP_SIZE(result); offset++) {
        pic16_emitpcode (POC_CLRF, pic16_popGet (AOP(result), offset));
      } // for
    }
  } // if (size mismatch)

  pic16_mov2w (AOP(right), 0);
  pic16_emitpcode (POC_BZ, pic16_popGetLabel (label_complete->key));
  if (signedCount) pic16_emitpcode (POC_BN, pic16_popGetLabel (label_negative->key));
  
#if 0
  // perform a shift by one (shift count is positive)
  // cycles used for shifting {unsigned,signed} values on n bytes by [unsigned,signed] shift count c>0:
  // 2n+[2,3]+({1,3}+n+3)c-2+[0,2]=({4,6}+n)c+2n+[0,3]          ({5,7}c+[2,5] / {6,8}c+[4, 7] / {8,10}c+[ 8,11])
  pic16_emitpLabel (label_loop_pos->key);
  emitCLRC;
  if (sign && (pos_shift == POC_RRCF)) {
    pic16_emitpcode (POC_BTFSC, pic16_popCopyGPR2Bit(pic16_popGet(AOP(result), AOP_SIZE(result)-1), 7));
    emitSETC;
  } // if
  genMultiAsm (pos_shift, result, AOP_SIZE(result), pos_shift == POC_RRCF);
  pic16_emitpcode (POC_DECFSZ, pic16_popCopyReg (&pic16_pc_wreg));
  pic16_emitpcode (POC_BRA, pic16_popGetLabel (label_loop_pos->key));
#else
  // perform a shift by one (shift count is positive)
  // cycles used for shifting {unsigned,signed} values on n bytes by [unsigned,signed] shift count c>0:
  // 2n+[2,3]+2+({0,2}+n+3)c-1+[0,2]=({3,5}+n)c+2n+[3,6]        ({4,6}c+[5,8] / {5,7}c+[7,10] / {7, 9}c+[11,14])
  // This variant is slower for 0<c<3, equally fast for c==3, and faster for 3<c.
  pic16_emitpcode (POC_NEGF, pic16_popCopyReg (&pic16_pc_wreg));
  emitCLRC;
  pic16_emitpLabel (label_loop_pos->key);
  if (sign && (pos_shift == POC_RRCF)) {
    pic16_emitpcode (POC_BTFSC, pic16_popCopyGPR2Bit(pic16_popGet(AOP(result), AOP_SIZE(result)-1), 7));
    emitSETC;
  } // if
  genMultiAsm (pos_shift, result, AOP_SIZE(result), pos_shift == POC_RRCF);
  //pic16_emitpcode (POC_INCF, pic16_popCopyReg (&pic16_pc_wreg)); // gpsim does not like this...
  pic16_emitpcode (POC_ADDLW, pic16_popGetLit (0x01));
  pic16_emitpcode (POC_BNC, pic16_popGetLabel (label_loop_pos->key));
#endif

  if (signedCount) {
    pic16_emitpcode (POC_BRA, pic16_popGetLabel (label_complete->key));

    pic16_emitpLabel (label_negative->key);
    // perform a shift by -1 (shift count is negative)
    // 2n+4+1+({0,2}+n+3)*c-1=({3,5}+n)c+2n+4                   ({4,6}c+6 / {5,7}c+8 / {7,9}c+12)
    emitCLRC;
    pic16_emitpLabel (label_loop_neg->key);
    if (sign && (neg_shift == POC_RRCF)) {
      pic16_emitpcode (POC_BTFSC, pic16_popCopyGPR2Bit(pic16_popGet(AOP(result), AOP_SIZE(result)-1), 7));
      emitSETC;
    } // if
    genMultiAsm (neg_shift, result, AOP_SIZE(result), neg_shift == POC_RRCF);
    //pic16_emitpcode (POC_INCF, pic16_popCopyReg (&pic16_pc_wreg)); // gpsim does not like this...
    pic16_emitpcode (POC_ADDLW, pic16_popGetLit (0x01));
    pic16_emitpcode (POC_BNC, pic16_popGetLabel (label_loop_neg->key));
  } // if (signedCount)

  pic16_emitpLabel (label_complete->key);

release:
  pic16_freeAsmop (right,NULL,ic,TRUE);
  pic16_freeAsmop(left,NULL,ic,TRUE);
  pic16_freeAsmop(result,NULL,ic,TRUE);
}

static void genLeftShift (iCode *ic) {
  genGenericShift (ic, 1);
}

static void genRightShift (iCode *ic) {
  genGenericShift (ic, 0);
}
#endif


/* load FSR0 with address of/from op according to is_LitOp() or if lit is 1 */
void pic16_loadFSR0(operand *op, int lit)
{
  if(OP_SYMBOL(op)->remat || is_LitOp( op )) {
    pic16_emitpcode(POC_LFSR, pic16_popGetLit2(0, pic16_popGet(AOP(op), 0)));
  } else {
    assert (!OP_SYMBOL(op)->remat);
    // set up FSR0 with address of result
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(op),0), pic16_popCopyReg(&pic16_pc_fsr0l)));
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(op),1), pic16_popCopyReg(&pic16_pc_fsr0h)));
  }
}

/*----------------------------------------------------------------*/
/* pic16_derefPtr - move one byte from the location ptr points to */
/*                  to WREG (doWrite == 0) or one byte from WREG   */
/*                  to the location ptr points to (doWrite != 0)   */
/*----------------------------------------------------------------*/
static void pic16_derefPtr (operand *ptr, int p_type, int doWrite, int *fsr0_setup)
{
  switch (p_type) {
    case FPOINTER:
    case POINTER:
      if (!fsr0_setup || !*fsr0_setup)
      {
        pic16_loadFSR0( ptr, 0 );
        if (fsr0_setup) *fsr0_setup = 1;
      }
      if (doWrite)
        pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_indf0));
      else
        pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_indf0));
      break;

    case GPOINTER:
      if (AOP(ptr)->aopu.aop_reg[2]) {
        if (doWrite) pic16_emitpcode (POC_MOVWF, pic16_popCopyReg(pic16_stack_postdec));
        // prepare call to __gptrget1, this is actually genGenPointerGet(result, WREG, ?ic?)
        pic16_emitpcode (POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(ptr),0), pic16_popCopyReg(&pic16_pc_fsr0l)));
        pic16_emitpcode (POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(ptr),1), pic16_popCopyReg(&pic16_pc_prodl)));
        pic16_emitpcode (POC_MOVFW, pic16_popGet(AOP(ptr),2));
        pic16_callGenericPointerRW(doWrite, 1);
      } else {
        // data pointer (just 2 byte given)
        if (!fsr0_setup || !*fsr0_setup)
        {
          pic16_loadFSR0( ptr, 0 );
          if (fsr0_setup) *fsr0_setup = 1;
        }
        if (doWrite)
          pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_indf0));
        else
          pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_indf0));
      }
      break;

    default:
      assert (0 && "invalid pointer type specified");
      break;
  }
}

/*-----------------------------------------------------------------*/
/* genUnpackBits - generates code for unpacking bits               */
/*-----------------------------------------------------------------*/
static void genUnpackBits (operand *result, operand *left, char *rname, int ptype)
{    
  int shCnt ;
  sym_link *etype, *letype;
  int blen=0, bstr=0;
  int lbstr;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    etype = getSpec(operandType(result));
    letype = getSpec(operandType(left));
    
//    if(IS_BITFIELD(etype)) {
      blen = SPEC_BLEN(etype);
      bstr = SPEC_BSTR(etype);
//    }

    lbstr = SPEC_BSTR( letype );

#if 1
    if((blen == 1) && (bstr < 8)) {
      /* it is a single bit, so use the appropriate bit instructions */
      DEBUGpic16_emitcode (";","%s %d optimize bit read",__FUNCTION__,__LINE__);

      pic16_emitpcode(POC_CLRF, pic16_popCopyReg(&pic16_pc_wreg));
      
      // distinguish (p->bitfield) and p.bitfield, remat seems to work...
      if(!IS_PTR(operandType(left))/* && OP_SYMBOL(left)->remat && (ptype == POINTER)*/) {
        /* workaround to reduce the extra lfsr instruction */
        pic16_emitpcode(POC_BTFSC,
              pic16_popCopyGPR2Bit(pic16_popGet(AOP(left), 0), bstr));
      } else {
        pic16_loadFSR0 (left, 0);
        pic16_emitpcode(POC_BTFSC,
              pic16_popCopyGPR2Bit(pic16_popCopyReg(&pic16_pc_indf0), bstr));
      }
        
      pic16_emitpcode(POC_INCF, pic16_popCopyReg(&pic16_pc_wreg));

      pic16_emitpcode(POC_MOVWF, pic16_popGet( AOP(result), 0 ));      
      return;
    }

#endif

        /* the following call to pic16_loadFSR0 is temporary until
         * optimization to handle single bit assignments is added
         * to the function. Until then use the old safe way! -- VR */

    if (!IS_PTR(operandType(left)) /*OP_SYMBOL(left)->remat*/) {
        // access symbol directly
        pic16_mov2w (AOP(left), 0);
    } else {
      pic16_derefPtr (left, ptype, 0, NULL);
    }

        /* if we have bitdisplacement then it fits   */
        /* into this byte completely or if length is */
        /* less than a byte                          */
        if ((shCnt = SPEC_BSTR(etype)) || 
                (SPEC_BLEN(etype) <= 8))  {

                /* shift right acc */
                AccRsh(shCnt, 0);

                pic16_emitpcode(POC_ANDLW, pic16_popGetLit(
                        (((unsigned char) -1)>>(8 - SPEC_BLEN(etype))) & SRMask[ shCnt ]));

/* VR -- normally I would use the following, but since we use the hack,
 * to avoid the masking from AccRsh, why not mask it right now? */

/*
                pic16_emitpcode(POC_ANDLW, pic16_popGetLit(((unsigned char) -1)>>(8 - SPEC_BLEN(etype))));
*/

                pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 0));
          return ;
        }



        fprintf(stderr, "SDCC pic16 port error: the port currently does not support\n");
        fprintf(stderr, "bitfields of size >=8. Instead of generating wrong code, bailling out...\n");
        exit(-1);

    return ;
}


static void genDataPointerGet(operand *left,
                              operand *result,
                              iCode *ic)
{
  int size, offset = 0, leoffset=0 ;

        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
        pic16_aopOp(result, ic, TRUE);

        FENTRY;

        size = AOP_SIZE(result);
//      fprintf(stderr, "%s:%d size= %d\n", __FILE__, __LINE__, size);


#if 0
        /* The following tests may save a redudant movff instruction when
         * accessing unions */
         
        /* if they are the same */
        if (operandsEqu (left, result)) {
                DEBUGpic16_emitcode("; ***", "left and result operands are equ/same");
                goto release;
        }
#endif

#if 0
        /* if they are the same registers */
        if (pic16_sameRegs(AOP(left),AOP(result))) {
                DEBUGpic16_emitcode("; ***", "left and result registers are same");
                goto release;
        }
#endif

#if 1
        if(!strcmp(pic16_aopGet(AOP(result), 0, TRUE, FALSE),
                pic16_aopGet(AOP(left), 0, TRUE, FALSE))) {
                DEBUGpic16_emitcode("; ***", "left and result names are same, skipping moving");
                goto release;
        }
#endif


#if 0
        if ( AOP_TYPE(left) == AOP_PCODE) {
                fprintf(stderr,"genDataPointerGet   %s, %d\n",
                                AOP(left)->aopu.pcop->name,
                                (AOP(left)->aopu.pcop->type == PO_DIR)?
                                PCOR(AOP(left)->aopu.pcop)->instance:
                                PCOI(AOP(left)->aopu.pcop)->offset);
        }
#endif

        if(AOP(left)->aopu.pcop->type == PO_DIR)
                leoffset=PCOR(AOP(left)->aopu.pcop)->instance;

        DEBUGpic16_pic16_AopType(__LINE__,left,NULL,result);

        while (size--) {
                DEBUGpic16_emitcode("; ***", "%s loop offset=%d leoffset=%d", __FUNCTION__, offset, leoffset);
                
//              pic16_DumpOp("(result)",result);
                if(is_LitAOp(AOP(result))) {
                        pic16_mov2w(AOP(left), offset); // patch 8
                        pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), offset));
                } else {
                        pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
                                pic16_popGet(AOP(left), offset), //patch 8
                                pic16_popGet(AOP(result), offset)));
                }

                offset++;
                leoffset++;
        }

release:
    pic16_freeAsmop(result,NULL,ic,TRUE);
}



/*-----------------------------------------------------------------*/
/* genNearPointerGet - pic16_emitcode for near pointer fetch             */
/*-----------------------------------------------------------------*/
static void genNearPointerGet (operand *left, 
                               operand *result, 
                               iCode *ic)
{
//  asmop *aop = NULL;
  //regs *preg = NULL ;
  sym_link *rtype, *retype;
  sym_link *ltype, *letype;

    FENTRY;
    
    rtype = operandType(result);
    retype= getSpec(rtype);
    ltype = operandType(left);
    letype= getSpec(ltype);
    
    pic16_aopOp(left,ic,FALSE);

//    pic16_DumpOp("(left)",left);
//    pic16_DumpOp("(result)",result);

    /* if left is rematerialisable and
     * result is not bit variable type and
     * the left is pointer to data space i.e
     * lower 128 bytes of space */
    
    if (AOP_TYPE(left) == AOP_PCODE
      && !IS_BITFIELD(retype)
      && DCL_TYPE(ltype) == POINTER) {

        genDataPointerGet (left,result,ic);
        pic16_freeAsmop(left, NULL, ic, TRUE);
        return ;
    }
    
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    pic16_aopOp (result,ic,TRUE);
    
    DEBUGpic16_pic16_AopType(__LINE__, left, NULL, result);

#if 1
    if(IS_BITFIELD( retype )
      && (SPEC_BLEN(operandType(result))==1)
    ) {
      iCode *nextic;
      pCodeOp *jop;
      int bitstrt, bytestrt;

        /* if this is bitfield of size 1, see if we are checking the value
         * of a single bit in an if-statement,
         * if yes, then don't generate usual code, but execute the
         * genIfx directly -- VR */

        nextic = ic->next;

        /* CHECK: if next iCode is IFX
         * and current result operand is nextic's conditional operand
         * and current result operand live ranges ends at nextic's key number
         */
        if((nextic->op == IFX)
          && (result == IC_COND(nextic))
          && (OP_LIVETO(result) == nextic->seq)
          && (OP_SYMBOL(left)->remat)   // below fails for "if (p->bitfield)"
          ) {
            /* everything is ok then */
            /* find a way to optimize the genIfx iCode */

            bytestrt = SPEC_BSTR(operandType(result))/8;
            bitstrt = SPEC_BSTR(operandType(result))%8;
            
            jop = pic16_popCopyGPR2Bit(pic16_popGet(AOP(left), 0), bitstrt);

            genIfxpCOpJump(nextic, jop);
            
            pic16_freeAsmop(left, NULL, ic, TRUE);
            pic16_freeAsmop(result, NULL, ic, TRUE);
            return;
        }
    }
#endif

    /* if bitfield then unpack the bits */
    if (IS_BITFIELD(letype)) 
      genUnpackBits (result, left, NULL, POINTER);
    else {
      /* we have can just get the values */
      int size = AOP_SIZE(result);
      int offset = 0;   
        
      DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

      pic16_loadFSR0( left, 0 );

      while(size--) {
        if(size) {
          pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_postinc0),
                pic16_popGet(AOP(result), offset++)));
        } else {
          pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_indf0),
                pic16_popGet(AOP(result), offset++)));
        }
      }
    }

#if 0
    /* now some housekeeping stuff */
    if (aop) {
      /* we had to allocate for this iCode */
      DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
      pic16_freeAsmop(NULL,aop,ic,TRUE);
    } else { 
      /* we did not allocate which means left
       * already in a pointer register, then
       * if size > 0 && this could be used again
       * we have to point it back to where it 
       * belongs */
      DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
      if (AOP_SIZE(result) > 1
        && !OP_SYMBOL(left)->remat
        && ( OP_SYMBOL(left)->liveTo > ic->seq
            || ic->depth )) {
//        int size = AOP_SIZE(result) - 1;
//        while (size--)
//          pic16_emitcode("dec","%s",rname);
        }
    }
#endif

    /* done */
    pic16_freeAsmop(left,NULL,ic,TRUE);
    pic16_freeAsmop(result,NULL,ic,TRUE);
}

/*-----------------------------------------------------------------*/
/* genPagedPointerGet - pic16_emitcode for paged pointer fetch           */
/*-----------------------------------------------------------------*/
static void genPagedPointerGet (operand *left, 
                               operand *result, 
                               iCode *ic)
{
    asmop *aop = NULL;
    regs *preg = NULL ;
    char *rname ;
    sym_link *rtype, *retype;    

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    rtype = operandType(result);
    retype= getSpec(rtype);
    
    pic16_aopOp(left,ic,FALSE);

  /* if the value is already in a pointer register
       then don't need anything more */
    if (!AOP_INPREG(AOP(left))) {
        /* otherwise get a free pointer register */
        aop = newAsmop(0);
        preg = getFreePtr(ic,&aop,FALSE);
        pic16_emitcode("mov","%s,%s",
                preg->name,
                pic16_aopGet(AOP(left),0,FALSE,TRUE));
        rname = preg->name ;
    } else
        rname = pic16_aopGet(AOP(left),0,FALSE,FALSE);
    
    pic16_freeAsmop(left,NULL,ic,TRUE);
    pic16_aopOp (result,ic,TRUE);

    /* if bitfield then unpack the bits */
    if (IS_BITFIELD(retype)) 
        genUnpackBits (result,left,rname,PPOINTER);
    else {
        /* we have can just get the values */
        int size = AOP_SIZE(result);
        int offset = 0 ;        
        
        while (size--) {
            
            pic16_emitcode("movx","a,@%s",rname);
            pic16_aopPut(AOP(result),"a",offset);
            
            offset++ ;
            
            if (size)
                pic16_emitcode("inc","%s",rname);
        }
    }

    /* now some housekeeping stuff */
    if (aop) {
        /* we had to allocate for this iCode */
        pic16_freeAsmop(NULL,aop,ic,TRUE);
    } else { 
        /* we did not allocate which means left
           already in a pointer register, then
           if size > 0 && this could be used again
           we have to point it back to where it 
           belongs */
        if (AOP_SIZE(result) > 1 &&
            !OP_SYMBOL(left)->remat &&
            ( OP_SYMBOL(left)->liveTo > ic->seq ||
              ic->depth )) {
            int size = AOP_SIZE(result) - 1;
            while (size--)
                pic16_emitcode("dec","%s",rname);
        }
    }

    /* done */
    pic16_freeAsmop(result,NULL,ic,TRUE);
    
        
}

#if 0
/* This code is not adjusted to PIC16 and fails utterly.
 * On the other hand: PIC16 does not support xdata (the only mem FPOINTERs are used for) anyway... */

/*-----------------------------------------------------------------*/
/* genFarPointerGet - gget value from far space                    */
/*-----------------------------------------------------------------*/
static void genFarPointerGet (operand *left,
                              operand *result, iCode *ic)
{
    int size, offset ;
    sym_link *retype = getSpec(operandType(result));

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    pic16_aopOp(left,ic,FALSE);

    /* if the operand is already in dptr 
    then we do nothing else we move the value to dptr */
    if (AOP_TYPE(left) != AOP_STR) {
        /* if this is remateriazable */
        if (AOP_TYPE(left) == AOP_IMMD)
            pic16_emitcode("mov","dptr,%s",pic16_aopGet(AOP(left),0,TRUE,FALSE));
        else { /* we need to get it byte by byte */
            pic16_emitcode("mov","dpl,%s",pic16_aopGet(AOP(left),0,FALSE,FALSE));
            pic16_emitcode("mov","dph,%s",pic16_aopGet(AOP(left),1,FALSE,FALSE));
            if (options.model == MODEL_FLAT24)
            {
               pic16_emitcode("mov", "dpx,%s",pic16_aopGet(AOP(left),2,FALSE,FALSE));
            }
        }
    }
    /* so dptr know contains the address */
    pic16_freeAsmop(left,NULL,ic,TRUE);
    pic16_aopOp(result,ic,TRUE);

    /* if bit then unpack */
    if (IS_BITFIELD(retype)) 
        genUnpackBits(result,left,"dptr",FPOINTER);
    else {
        size = AOP_SIZE(result);
        offset = 0 ;

        while (size--) {
            pic16_emitcode("movx","a,@dptr");
            pic16_aopPut(AOP(result),"a",offset++);
            if (size)
                pic16_emitcode("inc","dptr");
        }
    }

    pic16_freeAsmop(result,NULL,ic,TRUE);
}
#endif

#if 0
/*-----------------------------------------------------------------*/
/* genCodePointerGet - get value from code space                  */
/*-----------------------------------------------------------------*/
static void genCodePointerGet (operand *left,
                                operand *result, iCode *ic)
{
    int size, offset ;
    sym_link *retype = getSpec(operandType(result));

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    pic16_aopOp(left,ic,FALSE);

    /* if the operand is already in dptr 
    then we do nothing else we move the value to dptr */
    if (AOP_TYPE(left) != AOP_STR) {
        /* if this is remateriazable */
        if (AOP_TYPE(left) == AOP_IMMD)
            pic16_emitcode("mov","dptr,%s",pic16_aopGet(AOP(left),0,TRUE,FALSE));
        else { /* we need to get it byte by byte */
            pic16_emitcode("mov","dpl,%s",pic16_aopGet(AOP(left),0,FALSE,FALSE));
            pic16_emitcode("mov","dph,%s",pic16_aopGet(AOP(left),1,FALSE,FALSE));
            if (options.model == MODEL_FLAT24)
            {
               pic16_emitcode("mov", "dpx,%s",pic16_aopGet(AOP(left),2,FALSE,FALSE));
            }
        }
    }
    /* so dptr know contains the address */
    pic16_freeAsmop(left,NULL,ic,TRUE);
    pic16_aopOp(result,ic,FALSE);

    /* if bit then unpack */
    if (IS_BITFIELD(retype)) 
        genUnpackBits(result,left,"dptr",CPOINTER);
    else {
        size = AOP_SIZE(result);
        offset = 0 ;

        while (size--) {
            pic16_emitcode("clr","a");
            pic16_emitcode("movc","a,@a+dptr");
            pic16_aopPut(AOP(result),"a",offset++);
            if (size)
                pic16_emitcode("inc","dptr");
        }
    }

    pic16_freeAsmop(result,NULL,ic,TRUE);
}
#endif

#if 0
/*-----------------------------------------------------------------*/
/* genGenPointerGet - gget value from generic pointer space        */
/*-----------------------------------------------------------------*/
static void genGenPointerGet (operand *left,
                              operand *result, iCode *ic)
{
  int size, offset, lit;
  sym_link *retype = getSpec(operandType(result));

        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
        pic16_aopOp(left,ic,FALSE);
        pic16_aopOp(result,ic,FALSE);
        size = AOP_SIZE(result);

        DEBUGpic16_pic16_AopType(__LINE__,left,NULL,result);

        if (AOP_TYPE(left) == AOP_IMMD) { // do we ever get here? (untested!)

                lit = (unsigned)floatFromVal(AOP(left)->aopu.aop_lit);
                // load FSR0 from immediate
                pic16_emitpcode(POC_LFSR,pic16_popGetLit2(0,pic16_popGetLit(lit)));

//              pic16_loadFSR0( left );

                offset = 0;
                while(size--) {
                        if(size) {
                                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_postinc0), pic16_popGet(AOP(result),offset)));
                        } else {
                                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_indf0), pic16_popGet(AOP(result),offset)));
                        }
                        offset++;
                }
                goto release;

        }
        else { /* we need to get it byte by byte */
                // set up FSR0 with address from left
                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(left),0), pic16_popCopyReg(&pic16_pc_fsr0l)));
                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(left),1), pic16_popCopyReg(&pic16_pc_fsr0h)));
                
                offset = 0 ;

                while(size--) {
                        if(size) {
                                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_postinc0), pic16_popGet(AOP(result),offset)));
                        } else {
                                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_indf0), pic16_popGet(AOP(result),offset)));
                        }
                        offset++;
                }
                goto release;
        }

  /* if bit then unpack */
        if (IS_BITFIELD(retype)) 
                genUnpackBits(result,left,"BAD",GPOINTER);

        release:
        pic16_freeAsmop(left,NULL,ic,TRUE);
        pic16_freeAsmop(result,NULL,ic,TRUE);

}
#endif


/*-----------------------------------------------------------------*/
/* genGenPointerGet - gget value from generic pointer space        */
/*-----------------------------------------------------------------*/
static void genGenPointerGet (operand *left,
                              operand *result, iCode *ic)
{
  int size, offset, lit;
  sym_link *letype = getSpec(operandType(left));

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    pic16_aopOp(left,ic,FALSE);
    pic16_aopOp(result,ic,TRUE);
    size = AOP_SIZE(result);

    DEBUGpic16_pic16_AopType(__LINE__,left,NULL,result);
  
    /* if bit then unpack */
    if (IS_BITFIELD(letype)) {
      genUnpackBits(result,left,"BAD",GPOINTER);
      goto release;
    }

    if (AOP_TYPE(left) == AOP_IMMD) { // do we ever get here? (untested!)

      lit = (unsigned)floatFromVal(AOP(left)->aopu.aop_lit);
      // load FSR0 from immediate
      pic16_emitpcode(POC_LFSR,pic16_popGetLit2(0,pic16_popGetLit(lit)));

      werror(W_POSSBUG2, __FILE__, __LINE__);

      offset = 0;
      while(size--) {
        if(size) {
          pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_postinc0), pic16_popGet(AOP(result),offset)));
        } else {
          pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_indf0), pic16_popGet(AOP(result),offset)));
        }
        offset++;
      }

      goto release;

    } else { /* we need to get it byte by byte */

      /* set up WREG:PRODL:FSR0L with address from left */
      pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(left),0), pic16_popCopyReg(&pic16_pc_fsr0l)));
      pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(left),1), pic16_popCopyReg(&pic16_pc_prodl)));
      pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 2));
      
      pic16_callGenericPointerRW(0, size);
      
      assignResultValue(result, 1);
      
      goto release;
    }

release:
  pic16_freeAsmop(left,NULL,ic,TRUE);
  pic16_freeAsmop(result,NULL,ic,TRUE);
}

/*-----------------------------------------------------------------*/
/* genConstPointerGet - get value from const generic pointer space */
/*-----------------------------------------------------------------*/
static void genConstPointerGet (operand *left,
                                operand *result, iCode *ic)
{
  //sym_link *retype = getSpec(operandType(result));
  // symbol *albl = newiTempLabel(NULL);        // patch 15
  // symbol *blbl = newiTempLabel(NULL);        //
  // PIC_OPCODE poc;                            // patch 15
  int size;
  int offset = 0;

  DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
  pic16_aopOp(left,ic,FALSE);
  pic16_aopOp(result,ic,TRUE);
  size = AOP_SIZE(result);

  DEBUGpic16_pic16_AopType(__LINE__,left,NULL,result);

  DEBUGpic16_emitcode ("; "," %d getting const pointer",__LINE__);

  // set up table pointer
  if( (AOP_TYPE(left) == AOP_PCODE) 
      && ((AOP(left)->aopu.pcop->type == PO_IMMEDIATE)
          || (AOP(left)->aopu.pcop->type == PO_DIR)))
    {
      pic16_emitpcode(POC_MOVLW,pic16_popGet(AOP(left),0));
      pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_tblptrl));
      pic16_emitpcode(POC_MOVLW,pic16_popGet(AOP(left),1));
      pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_tblptrh));
      pic16_emitpcode(POC_MOVLW,pic16_popGet(AOP(left),2));
      pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_tblptru));
  } else {
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(left),0), pic16_popCopyReg(&pic16_pc_tblptrl)));
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(left),1), pic16_popCopyReg(&pic16_pc_tblptrh)));
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(left),2), pic16_popCopyReg(&pic16_pc_tblptru)));
  }

  while(size--) {
    pic16_emitpcodeNULLop(POC_TBLRD_POSTINC);
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_tablat), pic16_popGet(AOP(result),offset)));
    offset++;
  }
    
  pic16_freeAsmop(left,NULL,ic,TRUE);
  pic16_freeAsmop(result,NULL,ic,TRUE);
}


/*-----------------------------------------------------------------*/
/* genPointerGet - generate code for pointer get                   */
/*-----------------------------------------------------------------*/
static void genPointerGet (iCode *ic)
{
  operand *left, *result ;
  sym_link *type, *etype;
  int p_type;

    FENTRY;
    
    left = IC_LEFT(ic);
    result = IC_RESULT(ic) ;

    /* depending on the type of pointer we need to
    move it to the correct pointer register */
    type = operandType(left);
    etype = getSpec(type);

#if 0
    if (IS_PTR_CONST(type))
#else
    if (IS_CODEPTR(type))
#endif
      DEBUGpic16_emitcode ("; ***","%d - const pointer",__LINE__);

    /* if left is of type of pointer then it is simple */
    if (IS_PTR(type) && !IS_FUNC(type->next)) 
      p_type = DCL_TYPE(type);
    else {
      /* we have to go by the storage class */
      p_type = PTR_TYPE(SPEC_OCLS(etype));

      DEBUGpic16_emitcode ("; ***","%d - resolve pointer by storage class",__LINE__);

      if (SPEC_OCLS(etype)->codesp ) {
        DEBUGpic16_emitcode ("; ***","%d - cpointer",__LINE__);
        //p_type = CPOINTER ;   
      } else
      if (SPEC_OCLS(etype)->fmap && !SPEC_OCLS(etype)->paged) {
        DEBUGpic16_emitcode ("; ***","%d - fpointer",__LINE__);
        /*p_type = FPOINTER ;*/ 
      } else
      if (SPEC_OCLS(etype)->fmap && SPEC_OCLS(etype)->paged) {
        DEBUGpic16_emitcode ("; ***","%d - ppointer",__LINE__);
        /* p_type = PPOINTER; */
      } else
      if (SPEC_OCLS(etype) == idata ) {
        DEBUGpic16_emitcode ("; ***","%d - ipointer",__LINE__);
        /* p_type = IPOINTER; */
      } else {
        DEBUGpic16_emitcode ("; ***","%d - pointer",__LINE__);
        /* p_type = POINTER ; */
      }
    }

    /* now that we have the pointer type we assign
    the pointer values */
    switch (p_type) {
      case POINTER:     
      case FPOINTER:
      case IPOINTER:
        genNearPointerGet (left,result,ic);
        break;

      case PPOINTER:
        genPagedPointerGet(left,result,ic);
        break;

#if 0
      /* PICs do not support FAR pointers... */
      /* MUST move them somewhere; handle FPOINTERs like POINTERS or like GPOINTERs?!? */
      case FPOINTER:
        genFarPointerGet (left,result,ic);
        break;
#endif

      case CPOINTER:
        genConstPointerGet (left,result,ic);
        //pic16_emitcodePointerGet (left,result,ic);
        break;

      case GPOINTER:
#if 0
      if (IS_PTR_CONST(type))
        genConstPointerGet (left,result,ic);
      else
#endif
        genGenPointerGet (left,result,ic);
      break;

    default:
      werror (E_INTERNAL_ERROR, __FILE__, __LINE__, 
              "genPointerGet: illegal pointer type");
    
    }
}

/*-----------------------------------------------------------------*/
/* genPackBits - generates code for packed bit storage             */
/*-----------------------------------------------------------------*/
static void genPackBits (sym_link    *etype , operand *result,
                         operand *right ,
                         char *rname, int p_type)
{
  int shCnt = 0 ;
  int offset = 0  ;
  int rLen = 0 ;
  int blen, bstr ;   
  sym_link *retype;

        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
        blen = SPEC_BLEN(etype);
        bstr = SPEC_BSTR(etype);

        retype = getSpec(operandType(right));

        if(AOP_TYPE(right) == AOP_LIT) {
                if((blen == 1) && (bstr < 8)) {
                  unsigned long lit;
                        /* it is a single bit, so use the appropriate bit instructions */

                        DEBUGpic16_emitcode (";","%s %d optimize bit assignment",__FUNCTION__,__LINE__);

                        lit = (unsigned long)floatFromVal(AOP(right)->aopu.aop_lit);
//                      pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_indf0));
                        if(OP_SYMBOL(result)->remat && (p_type == POINTER) && (result)) {
                                /* workaround to reduce the extra lfsr instruction */
                                if(lit) {
                                        pic16_emitpcode(POC_BSF,
                                                pic16_popCopyGPR2Bit(pic16_popGet(AOP(result), 0), bstr));
                                } else {
                                        pic16_emitpcode(POC_BCF,
                                                pic16_popCopyGPR2Bit(pic16_popGet(AOP(result), 0), bstr));
                                }
                        } else {
                                pic16_loadFSR0(result, 0);
                                if(lit) {
                                        pic16_emitpcode(POC_BSF,
                                                pic16_popCopyGPR2Bit(pic16_popCopyReg(&pic16_pc_indf0), bstr));
                                } else {
                                        pic16_emitpcode(POC_BCF,
                                                pic16_popCopyGPR2Bit(pic16_popCopyReg(&pic16_pc_indf0), bstr));
                                }
                        }
        
                  return;
                }
                /* move literal to W */
                pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right), 0));
                offset++;
        } else
        if(IS_BITFIELD(retype) 
          && (AOP_TYPE(right) == AOP_REG || AOP_TYPE(right) == AOP_DIR)
          && (blen == 1)) {
          int rblen, rbstr;

            rblen = SPEC_BLEN( retype );
            rbstr = SPEC_BSTR( retype );
            

            if(IS_BITFIELD(etype)) {
              pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(result), 0));
              pic16_emitpcode(POC_BCF, pic16_popCopyGPR2Bit(pic16_popCopyReg(&pic16_pc_wreg), bstr));
            } else {
              pic16_emitpcode(POC_CLRF, pic16_popCopyReg(&pic16_pc_wreg));
            }
            
            pic16_emitpcode(POC_BTFSC, pic16_popCopyGPR2Bit(pic16_popGet(AOP(right), 0), rbstr));
            
            if(IS_BITFIELD(etype)) {
              pic16_emitpcode(POC_BSF, pic16_popCopyGPR2Bit(pic16_popCopyReg(&pic16_pc_wreg), bstr));
            } else {
              pic16_emitpcode(POC_INCF, pic16_popCopyReg(&pic16_pc_wreg));
            }

            pic16_emitpcode(POC_MOVWF, pic16_popGet( AOP(result), 0));
            
            return;
        } else {
          /* move right to W */
          pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right), offset++));
        }

        /* if the bit length is less than or   */
        /* it exactly fits a byte then         */
        if((shCnt=SPEC_BSTR(etype))
                || SPEC_BLEN(etype) <= 8 )  {
                int fsr0_setup = 0;

                if (blen != 8 || bstr != 0) {
                  // we need to combine the value with the old value
                  pic16_emitpcode(POC_ANDLW, pic16_popGetLit((1U << blen)-1));

          DEBUGpic16_emitcode(";", "shCnt = %d SPEC_BSTR(etype) = %d:%d", shCnt,
                SPEC_BSTR(etype), SPEC_BLEN(etype));
                
                  /* shift left acc */
                  AccLsh(shCnt);

                  /* using PRODH as a temporary register here */
                  pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_prodh));

                  if (IS_SYMOP(result) && !IS_PTR(operandType (result))/*OP_SYMBOL(result)->remat*/) {
                    /* access symbol directly */
                    pic16_mov2w (AOP(result), 0);
                  } else {
                    /* get old value */
                    pic16_derefPtr (result, p_type, 0, &fsr0_setup);
                  }
#if 1
                  pic16_emitpcode(POC_ANDLW, pic16_popGetLit(
                        (unsigned char)((unsigned char)(0xff << (blen+bstr)) |
                                        (unsigned char)(0xff >> (8-bstr))) ));
                  pic16_emitpcode(POC_IORFW, pic16_popCopyReg(&pic16_pc_prodh));
                } // if (blen != 8 || bstr != 0)

                /* write new value back */
                if (IS_SYMOP(result) & !IS_PTR(operandType(result))) {
                  pic16_emitpcode (POC_MOVWF, pic16_popGet(AOP(result),0));
                } else {
                  pic16_derefPtr (result, p_type, 1, &fsr0_setup);
               }
#endif

          return;
        }


#if 0
        fprintf(stderr, "SDCC pic16 port error: the port currently does not support\n");
        fprintf(stderr, "bitfields of size >=8. Instead of generating wrong code, bailling out...\n");
        exit(-1);
#endif


    pic16_loadFSR0(result, 0);                  // load FSR0 with address of result
    rLen = SPEC_BLEN(etype)-8;
    
    /* now generate for lengths greater than one byte */
    while (1) {
        rLen -= 8 ;
        if (rLen <= 0 ) {
          mov2fp(pic16_popCopyReg(&pic16_pc_prodh), AOP(right), offset);
          break ;
        }

        switch (p_type) {
            case POINTER:
                  pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_postinc0));
                break;

/*
            case FPOINTER:
                MOVA(l);
                pic16_emitcode("movx","@dptr,a");
                break;

            case GPOINTER:
                MOVA(l);
                DEBUGpic16_emitcode(";lcall","__gptrput");
                break;  
*/
          default:
            assert(0);
        }   


        pic16_mov2w(AOP(right), offset++);
    }

    /* last last was not complete */
    if (rLen)   {
        /* save the byte & read byte */
        switch (p_type) {
            case POINTER:
//                pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_prodl));
                pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_indf0));
                break;

/*
            case FPOINTER:
                pic16_emitcode ("mov","b,a");
                pic16_emitcode("movx","a,@dptr");
                break;

            case GPOINTER:
                pic16_emitcode ("push","b");
                pic16_emitcode ("push","acc");
                pic16_emitcode ("lcall","__gptrget");
                pic16_emitcode ("pop","b");
                break;
*/
            default:
              assert(0);
        }
        DEBUGpic16_emitcode(";", "rLen = %i", rLen);
        pic16_emitpcode(POC_ANDLW, pic16_popGetLit((unsigned char)-1 << -rLen));
        pic16_emitpcode(POC_IORFW, pic16_popCopyReg(&pic16_pc_prodh));
//        pic16_emitcode ("anl","a,#0x%02x",((unsigned char)-1 << -rLen) );
//        pic16_emitcode ("orl","a,b");
    }

//    if (p_type == GPOINTER)
//        pic16_emitcode("pop","b");

    switch (p_type) {

      case POINTER:
        pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_indf0));
//      pic16_emitcode("mov","@%s,a",rname);
        break;
/*
      case FPOINTER:
        pic16_emitcode("movx","@dptr,a");
        break;
        
      case GPOINTER:
        DEBUGpic16_emitcode(";lcall","__gptrput");
        break;                  
*/
      default:
        assert(0);
    }
    
//    pic16_freeAsmop(right, NULL, ic, TRUE);
}
/*-----------------------------------------------------------------*/
/* genDataPointerSet - remat pointer to data space                 */
/*-----------------------------------------------------------------*/
static void genDataPointerSet(operand *right,
                              operand *result,
                              iCode *ic)
{
    int size, offset = 0, resoffset=0 ;

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    pic16_aopOp(right,ic,FALSE);

    size = AOP_SIZE(right);

//      fprintf(stderr, "%s:%d size= %d\n", __FILE__, __LINE__, size);

#if 0
    if ( AOP_TYPE(result) == AOP_PCODE) {
      fprintf(stderr,"genDataPointerSet   %s, %d\n",
              AOP(result)->aopu.pcop->name,
                (AOP(result)->aopu.pcop->type == PO_DIR)?
              PCOR(AOP(result)->aopu.pcop)->instance:
              PCOI(AOP(result)->aopu.pcop)->offset);
    }
#endif

        if(AOP(result)->aopu.pcop->type == PO_DIR)
                resoffset=PCOR(AOP(result)->aopu.pcop)->instance;

        while (size--) {
                if (AOP_TYPE(right) == AOP_LIT) {
                  unsigned int lit;

                    if(!IS_FLOAT(operandType( right )))
                      lit = (unsigned long)floatFromVal(AOP(IC_RIGHT(ic))->aopu.aop_lit);
                    else {
                      union {
                        unsigned long lit_int;
                        float lit_float;
                      } info;
        
                        /* take care if literal is a float */
                        info.lit_float = floatFromVal(AOP(IC_RIGHT(ic))->aopu.aop_lit);
                        lit = info.lit_int;
                    }

                    lit = lit >> (8*offset);
                    if(lit&0xff) {
                      pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit&0xff));
                      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset)); // pstch 8
                    } else {
                      pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offset)); // patch 8
                    }
                } else {
                  pic16_mov2w(AOP(right), offset);
                  pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset)); // patch 8
                }
                offset++;
                resoffset++;
        }

    pic16_freeAsmop(right,NULL,ic,TRUE);
}



/*-----------------------------------------------------------------*/
/* genNearPointerSet - pic16_emitcode for near pointer put         */
/*-----------------------------------------------------------------*/
static void genNearPointerSet (operand *right,
                               operand *result, 
                               iCode *ic)
{
  asmop *aop = NULL;
  sym_link *retype;
  sym_link *ptype = operandType(result);
  sym_link *resetype;
    
        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
        retype= getSpec(operandType(right));
        resetype = getSpec(operandType(result));
  
        pic16_aopOp(result,ic,FALSE);
    
        /* if the result is rematerializable &
         * in data space & not a bit variable */
        
        /* and result is not a bit variable */
        if (AOP_TYPE(result) == AOP_PCODE
//              && AOP_TYPE(result) == AOP_IMMD
                && DCL_TYPE(ptype) == POINTER
                && !IS_BITFIELD(retype)
                && !IS_BITFIELD(resetype)) {

                genDataPointerSet (right,result,ic);
                pic16_freeAsmop(result,NULL,ic,TRUE);
          return;
        }

        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
        pic16_aopOp(right,ic,FALSE);
        DEBUGpic16_pic16_AopType(__LINE__,NULL,right,result);

        /* if bitfield then unpack the bits */
        if (IS_BITFIELD(resetype)) {
                genPackBits (resetype, result, right, NULL, POINTER);
        } else {
                /* we have can just get the values */
          int size = AOP_SIZE(right);
          int offset = 0 ;    

            pic16_loadFSR0(result, 0);
            
                DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
                while (size--) {
                                if (AOP_TYPE(right) == AOP_LIT) {
                                        pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),offset));
                                        if (size) {
                                                pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_postinc0));
                                        } else {
                                                pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_indf0));
                                        }
                                } else { // no literal
                                        if(size) {
                                                pic16_emitpcode(POC_MOVFF,
                                                                pic16_popGet2p(pic16_popGet(AOP(right),offset),
                                                                        pic16_popCopyReg(&pic16_pc_postinc0)));
                                        } else {
                                                pic16_emitpcode(POC_MOVFF,
                                                                pic16_popGet2p(pic16_popGet(AOP(right),offset),
                                                                        pic16_popCopyReg(&pic16_pc_indf0)));
                                        }
                                }
                        offset++;
                }
        }

        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
        /* now some housekeeping stuff */
        if (aop) {
          /* we had to allocate for this iCode */
          pic16_freeAsmop(NULL,aop,ic,TRUE);
        } else { 
          /* we did not allocate which means left
           * already in a pointer register, then
           * if size > 0 && this could be used again
           * we have to point it back to where it 
           * belongs */
          DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
          if (AOP_SIZE(right) > 1
            && !OP_SYMBOL(result)->remat
            && ( OP_SYMBOL(result)->liveTo > ic->seq
            || ic->depth )) {

              int size = AOP_SIZE(right) - 1;

                while (size--)
                  pic16_emitcode("decf","fsr0,f");
                  //pic16_emitcode("dec","%s",rname);
            }
        }

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    /* done */
//release:
    pic16_freeAsmop(right,NULL,ic,TRUE);
    pic16_freeAsmop(result,NULL,ic,TRUE);
}

/*-----------------------------------------------------------------*/
/* genPagedPointerSet - pic16_emitcode for Paged pointer put             */
/*-----------------------------------------------------------------*/
static void genPagedPointerSet (operand *right,
                               operand *result, 
                               iCode *ic)
{
    asmop *aop = NULL;
    regs *preg = NULL ;
    char *rname , *l;
    sym_link *retype;
       
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    retype= getSpec(operandType(right));
    
    pic16_aopOp(result,ic,FALSE);
    
    /* if the value is already in a pointer register
       then don't need anything more */
    if (!AOP_INPREG(AOP(result))) {
        /* otherwise get a free pointer register */
        aop = newAsmop(0);
        preg = getFreePtr(ic,&aop,FALSE);
        pic16_emitcode("mov","%s,%s",
                preg->name,
                pic16_aopGet(AOP(result),0,FALSE,TRUE));
        rname = preg->name ;
    } else
        rname = pic16_aopGet(AOP(result),0,FALSE,FALSE);
    
    pic16_freeAsmop(result,NULL,ic,TRUE);
    pic16_aopOp (right,ic,FALSE);

    /* if bitfield then unpack the bits */
    if (IS_BITFIELD(retype)) 
        genPackBits (retype,result,right,rname,PPOINTER);
    else {
        /* we have can just get the values */
        int size = AOP_SIZE(right);
        int offset = 0 ;        
        
        while (size--) {
            l = pic16_aopGet(AOP(right),offset,FALSE,TRUE);
            
            MOVA(l);
            pic16_emitcode("movx","@%s,a",rname);

            if (size)
                pic16_emitcode("inc","%s",rname);

            offset++;
        }
    }
    
    /* now some housekeeping stuff */
    if (aop) {
        /* we had to allocate for this iCode */
        pic16_freeAsmop(NULL,aop,ic,TRUE);
    } else { 
        /* we did not allocate which means left
           already in a pointer register, then
           if size > 0 && this could be used again
           we have to point it back to where it 
           belongs */
        if (AOP_SIZE(right) > 1 &&
            !OP_SYMBOL(result)->remat &&
            ( OP_SYMBOL(result)->liveTo > ic->seq ||
              ic->depth )) {
            int size = AOP_SIZE(right) - 1;
            while (size--)
                pic16_emitcode("dec","%s",rname);
        }
    }

    /* done */
    pic16_freeAsmop(right,NULL,ic,TRUE);
    
        
}

#if 0
/* This code is not adjusted to PIC16 and fails utterly...
 * On the other hand: PIC16 has no xdata anyway (the only memory FPOINTERs are use for) */

/*-----------------------------------------------------------------*/
/* genFarPointerSet - set value from far space                     */
/*-----------------------------------------------------------------*/
static void genFarPointerSet (operand *right,
                              operand *result, iCode *ic)
{
    int size, offset ;
    sym_link *retype = getSpec(operandType(right));

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    pic16_aopOp(result,ic,FALSE);

    /* if the operand is already in dptr 
    then we do nothing else we move the value to dptr */
    if (AOP_TYPE(result) != AOP_STR) {
        /* if this is remateriazable */
        if (AOP_TYPE(result) == AOP_IMMD)
            pic16_emitcode("mov","dptr,%s",pic16_aopGet(AOP(result),0,TRUE,FALSE));
        else { /* we need to get it byte by byte */
            pic16_emitcode("mov","dpl,%s",pic16_aopGet(AOP(result),0,FALSE,FALSE));
            pic16_emitcode("mov","dph,%s",pic16_aopGet(AOP(result),1,FALSE,FALSE));
            if (options.model == MODEL_FLAT24)
            {
               pic16_emitcode("mov", "dpx,%s",pic16_aopGet(AOP(result),2,FALSE,FALSE));
            }
        }
    }
    /* so dptr know contains the address */
    pic16_freeAsmop(result,NULL,ic,TRUE);
    pic16_aopOp(right,ic,FALSE);

    /* if bit then unpack */
    if (IS_BITFIELD(retype)) 
        genPackBits(retype,result,right,"dptr",FPOINTER);
    else {
        size = AOP_SIZE(right);
        offset = 0 ;

        while (size--) {
            char *l = pic16_aopGet(AOP(right),offset++,FALSE,FALSE);
            MOVA(l);
            pic16_emitcode("movx","@dptr,a");
            if (size)
                pic16_emitcode("inc","dptr");
        }
    }

    pic16_freeAsmop(right,NULL,ic,TRUE);
}
#endif

/*-----------------------------------------------------------------*/
/* genGenPointerSet - set value from generic pointer space         */
/*-----------------------------------------------------------------*/
#if 0
static void genGenPointerSet (operand *right,
                              operand *result, iCode *ic)
{
        int i, size, offset, lit;
        sym_link *retype = getSpec(operandType(right));

        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

        pic16_aopOp(result,ic,FALSE);
        pic16_aopOp(right,ic,FALSE);
        size = AOP_SIZE(right);
        offset = 0;

        DEBUGpic16_pic16_AopType(__LINE__,NULL,right,result);

        /* if the operand is already in dptr 
                then we do nothing else we move the value to dptr */
        if (AOP_TYPE(result) != AOP_STR) {
                /* if this is remateriazable */
                DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
                // WARNING: anythig until "else" is untested!
                if (AOP_TYPE(result) == AOP_IMMD) {
                        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
                        lit = (unsigned)floatFromVal(AOP(result)->aopu.aop_lit);
                        // load FSR0 from immediate
                        pic16_emitpcode(POC_LFSR,pic16_popGetLit2(0,pic16_popGetLit(lit)));
                        offset = 0;
                        while(size--) {
                                if(size) {
                                        pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),offset), pic16_popCopyReg(&pic16_pc_postinc0)));
                                } else {
                                        pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),offset), pic16_popCopyReg(&pic16_pc_indf0)));
                                }
                                offset++;
                        }
                        goto release;
                }
                else { /* we need to get it byte by byte */
                        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
                        //char *l = pic16_aopGet(AOP(result),0,FALSE,FALSE);

                        // set up FSR0 with address of result
                        pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(result),0), pic16_popCopyReg(&pic16_pc_fsr0l)));
                        pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(result),1), pic16_popCopyReg(&pic16_pc_fsr0h)));

                        /* hack hack! see if this the FSR. If so don't load W */
                        if(AOP_TYPE(right) != AOP_ACC) {

                                DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

                                if(AOP_TYPE(right) == AOP_LIT)
                                {
                                        // copy literal
                                        // note: pic16_popGet handles sign extension
                                        for(i=0;i<size;i++) {
                                                pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),i));
                                                if(i < size-1)
                                                        pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_postinc0));
                                                else
                                                        pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_indf0));
                                        }
                                } else {
                                        // copy regs

                                        for(i=0;i<size;i++) {
                                                if(i < size-1)
                                                        pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),i),
                                                                        pic16_popCopyReg(&pic16_pc_postinc0)));
                                                else
                                                        pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),i),
                                                                        pic16_popCopyReg(&pic16_pc_indf0)));
                                        }
                                }
                                goto release;
                        } 
                        // right = ACC
                        DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
                        pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_indf0));
                        goto release;
        } // if (AOP_TYPE(result) != AOP_IMMD)

        } // if (AOP_TYPE(result) != AOP_STR)
        /* so dptr know contains the address */


        /* if bit then unpack */
        if (IS_BITFIELD(retype)) 
                genPackBits(retype,result,right,"dptr",GPOINTER);
        else {
                size = AOP_SIZE(right);
                offset = 0 ;

                DEBUGpic16_emitcode ("; ***","%s  %d size=%d",__FUNCTION__,__LINE__,size);

                // set up FSR0 with address of result
                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(result),0), pic16_popCopyReg(&pic16_pc_fsr0l)));
                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(result),1), pic16_popCopyReg(&pic16_pc_fsr0h)));
        
                while (size--) {
                        if (AOP_TYPE(right) == AOP_LIT) {
                                pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),offset));
                                if (size) {
                                        pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_postinc0));
                                } else {
                                        pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_indf0));
                                }
                        } else { // no literal
                                if(size) {
                                        pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),offset), pic16_popCopyReg(&pic16_pc_postinc0)));
                                } else {
                                        pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),offset), pic16_popCopyReg(&pic16_pc_indf0)));
                                }
                        }
                        offset++;
                }
        }

        release:
        pic16_freeAsmop(right,NULL,ic,TRUE);
        pic16_freeAsmop(result,NULL,ic,TRUE);
}
#endif

static void genGenPointerSet (operand *right,
                              operand *result, iCode *ic)
{
  int size;
  sym_link *retype = getSpec(operandType(result));

    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    pic16_aopOp(result,ic,FALSE);
    pic16_aopOp(right,ic,FALSE);
    size = AOP_SIZE(right);

    DEBUGpic16_pic16_AopType(__LINE__,NULL,right,result);


    /* if bit then unpack */
    if (IS_BITFIELD(retype)) {
//      pic16_emitpcode(POC_LFSR,pic16_popGetLit2(0,pic16_popGetLit(lit)));
      genPackBits(retype,result,right,"dptr",GPOINTER);
      goto release;
    }

    size = AOP_SIZE(right);

    DEBUGpic16_emitcode ("; ***","%s  %d size=%d",__FUNCTION__,__LINE__,size);


    /* load value to write in TBLPTRH:TBLPTRL:PRODH:[stack] */

    /* value of right+0 is placed on stack, which will be retrieved
     * by the support function this restoring the stack. The important
     * thing is that there is no need to manually restore stack pointer
     * here */
    pushaop(AOP(right), 0);
//    mov2fp(pic16_popCopyReg(&pic16_pc_postdec1), AOP(right), 0);
    if(size>1)mov2fp(pic16_popCopyReg(&pic16_pc_prodh), AOP(right), 1);
    if(size>2)mov2fp(pic16_popCopyReg(&pic16_pc_tblptrl), AOP(right), 2);
    if(size>3)mov2fp(pic16_popCopyReg(&pic16_pc_tblptrh), AOP(right), 3);
    
    /* load address to write to in WREG:FSR0H:FSR0L */
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(result), 0),
                                pic16_popCopyReg(&pic16_pc_fsr0l)));
    pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(result), 1),
                                pic16_popCopyReg(&pic16_pc_prodl)));
    pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(result), 2));
    
    pic16_callGenericPointerRW(1, size);

release:
    pic16_freeAsmop(right,NULL,ic,TRUE);
    pic16_freeAsmop(result,NULL,ic,TRUE);
}

/*-----------------------------------------------------------------*/
/* genPointerSet - stores the value into a pointer location        */
/*-----------------------------------------------------------------*/
static void genPointerSet (iCode *ic)
{    
  operand *right, *result ;
  sym_link *type, *etype;
  int p_type;

    FENTRY;

    right = IC_RIGHT(ic);
    result = IC_RESULT(ic) ;

    /* depending on the type of pointer we need to
    move it to the correct pointer register */
    type = operandType(result);
    etype = getSpec(type);
    
    /* if left is of type of pointer then it is simple */
    if (IS_PTR(type) && !IS_FUNC(type->next)) {
        p_type = DCL_TYPE(type);
    }
    else {
        /* we have to go by the storage class */
        p_type = PTR_TYPE(SPEC_OCLS(etype));

/*      if (SPEC_OCLS(etype)->codesp ) { */
/*          p_type = CPOINTER ;  */
/*      } */
/*      else */
/*          if (SPEC_OCLS(etype)->fmap && !SPEC_OCLS(etype)->paged) */
/*              p_type = FPOINTER ; */
/*          else */
/*              if (SPEC_OCLS(etype)->fmap && SPEC_OCLS(etype)->paged) */
/*                  p_type = PPOINTER ; */
/*              else */
/*                  if (SPEC_OCLS(etype) == idata ) */
/*                      p_type = IPOINTER ; */
/*                  else */
/*                      p_type = POINTER ; */
    }

    /* now that we have the pointer type we assign
    the pointer values */
    switch (p_type) {
      case POINTER:
      case FPOINTER:
      case IPOINTER:
        genNearPointerSet (right,result,ic);
        break;

      case PPOINTER:
        genPagedPointerSet (right,result,ic);
        break;

#if 0
      /* MUST move them somewhere; handle FPOINTERs like POINTERS or like GPOINTERs?!? */
      case FPOINTER:
        genFarPointerSet (right,result,ic);
        break;
#endif
        
      case GPOINTER:
        genGenPointerSet (right,result,ic);
        break;

      default:
        werror (E_INTERNAL_ERROR, __FILE__, __LINE__, 
          "genPointerSet: illegal pointer type");
    }
}

/*-----------------------------------------------------------------*/
/* genIfx - generate code for Ifx statement                        */
/*-----------------------------------------------------------------*/
static void genIfx (iCode *ic, iCode *popIc)
{
  operand *cond = IC_COND(ic);
  int isbit =0;

    FENTRY;

    pic16_aopOp(cond,ic,FALSE);

    /* get the value into acc */
    if (AOP_TYPE(cond) != AOP_CRY)
      pic16_toBoolean(cond);
    else
      isbit = 1;
    /* the result is now in the accumulator */
    pic16_freeAsmop(cond,NULL,ic,TRUE);

    /* if there was something to be popped then do it */
    if (popIc)
      genIpop(popIc);

    /* if the condition is  a bit variable */
    if (isbit && IS_ITEMP(cond) && 
        SPIL_LOC(cond)) {
      genIfxJump(ic,"c");
      DEBUGpic16_emitcode ("; isbit  SPIL_LOC","%s",SPIL_LOC(cond)->rname);
    } else {
      if (isbit && !IS_ITEMP(cond))
        genIfxJump(ic,OP_SYMBOL(cond)->rname);
        else
        genIfxJump(ic,"a");
    }
    ic->generated = 1;
}

/*-----------------------------------------------------------------*/
/* genAddrOf - generates code for address of                       */
/*-----------------------------------------------------------------*/
static void genAddrOf (iCode *ic)
{
  operand *result, *left;
  int size;
  symbol *sym;  // = OP_SYMBOL(IC_LEFT(ic));
  pCodeOp *pcop0, *pcop1, *pcop2;

    FENTRY;

    pic16_aopOp((result=IC_RESULT(ic)),ic,TRUE);

    sym = OP_SYMBOL( IC_LEFT(ic) );
    
    if(sym->onStack) {
      /* get address of symbol on stack */
      DEBUGpic16_emitcode(";    ", "%s symbol %s on stack", __FUNCTION__, sym->name);
#if 0
      fprintf(stderr, "%s:%d symbol %s on stack offset %i\n", __FILE__, __LINE__,
                  OP_SYMBOL(IC_LEFT(ic))->name, OP_SYMBOL(IC_LEFT(ic))->stack);
#endif

      // operands on stack are accessible via "FSR2 + index" with index
      // starting at 2 for arguments and growing from 0 downwards for
      // local variables (index == 0 is not assigned so we add one here)
      {
        int soffs = OP_SYMBOL( IC_LEFT(ic))->stack;
        if (soffs <= 0) {
          assert (soffs < 0);
          soffs++;
        } // if
        DEBUGpic16_emitcode("*!*", "accessing stack symbol at offset=%d", soffs);
        pic16_emitpcode(POC_MOVLW , pic16_popGetLit( soffs & 0x00FF ));
        pic16_emitpcode(POC_ADDFW , pic16_popCopyReg(pic16_framepnt_lo));
        pic16_emitpcode(POC_MOVWF , pic16_popGet(AOP(result), 0));
        pic16_emitpcode(POC_MOVLW , pic16_popGetLit( (soffs >> 8) & 0x00FF ));
        pic16_emitpcode(POC_ADDFWC, pic16_popCopyReg(pic16_framepnt_hi));
        pic16_emitpcode(POC_MOVWF , pic16_popGet(AOP(result), 1));
      }

      goto release;
    }
        
//      if(pic16_debug_verbose) {
//              fprintf(stderr, "%s:%d %s symbol %s , codespace=%d\n",
//                      __FILE__, __LINE__, __FUNCTION__, sym->name, IN_CODESPACE( SPEC_OCLS(sym->etype)));
//      }
        
    pic16_aopOp((left=IC_LEFT(ic)), ic, FALSE);
    size = AOP_SIZE(IC_RESULT(ic));

    pcop0 = PCOP(pic16_newpCodeOpImmd(sym->rname, 0, 0, IN_CODESPACE( SPEC_OCLS(sym->etype))));
    pcop1 = PCOP(pic16_newpCodeOpImmd(sym->rname, 1, 0, IN_CODESPACE( SPEC_OCLS(sym->etype))));
    pcop2 = PCOP(pic16_newpCodeOpImmd(sym->rname, 2, 0, IN_CODESPACE( SPEC_OCLS(sym->etype))));
        
    if (size == 3) {
      pic16_emitpcode(POC_MOVLW, pcop0);
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 0));
      pic16_emitpcode(POC_MOVLW, pcop1);
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 1));
      pic16_emitpcode(POC_MOVLW, pcop2);
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 2));
    } else
    if (size == 2) {
      pic16_emitpcode(POC_MOVLW, pcop0);
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_MOVLW, pcop1);
    pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),1));
    } else {
      pic16_emitpcode(POC_MOVLW, pcop0);
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0));
    }

    pic16_freeAsmop(left, NULL, ic, FALSE);
release:
    pic16_freeAsmop(result,NULL,ic,TRUE);
}


#if 0
/*-----------------------------------------------------------------*/
/* genFarFarAssign - assignment when both are in far space         */
/*-----------------------------------------------------------------*/
static void genFarFarAssign (operand *result, operand *right, iCode *ic)
{
    int size = AOP_SIZE(right);
    int offset = 0;
    char *l ;
    /* first push the right side on to the stack */
    while (size--) {
        l = pic16_aopGet(AOP(right),offset++,FALSE,FALSE);
        MOVA(l);
        pic16_emitcode ("push","acc");
    }
    
    pic16_freeAsmop(right,NULL,ic,FALSE);
    /* now assign DPTR to result */
    pic16_aopOp(result,ic,FALSE);
    size = AOP_SIZE(result);
    while (size--) {
        pic16_emitcode ("pop","acc");
        pic16_aopPut(AOP(result),"a",--offset);
    }
    pic16_freeAsmop(result,NULL,ic,FALSE);
        
}
#endif

/*-----------------------------------------------------------------*/
/* genAssign - generate code for assignment                        */
/*-----------------------------------------------------------------*/
static void genAssign (iCode *ic)
{
  operand *result, *right;
  int size, offset,know_W;
  unsigned long lit = 0L;

  result = IC_RESULT(ic);
  right  = IC_RIGHT(ic) ;

  FENTRY;
  
  /* if they are the same */
  if (operandsEqu (IC_RESULT(ic),IC_RIGHT(ic)))
    return ;

  /* reversed order operands are aopOp'ed so that result operand
   * is effective in case right is a stack symbol. This maneauver
   * allows to use the _G.resDirect flag later */
  pic16_aopOp(result,ic,TRUE);
  pic16_aopOp(right,ic,FALSE);

  DEBUGpic16_pic16_AopType(__LINE__,NULL,right,result);

  /* if they are the same registers */
  if (pic16_sameRegs(AOP(right),AOP(result)))
    goto release;

  /* if the result is a bit */
  if (AOP_TYPE(result) == AOP_CRY) {
    /* if the right size is a literal then
       we know what the value is */
    if (AOP_TYPE(right) == AOP_LIT) {
          
      pic16_emitpcode(  ( ((int) operandLitValue(right)) ? POC_BSF : POC_BCF),
                  pic16_popGet(AOP(result),0));

      if (((int) operandLitValue(right))) 
        pic16_emitcode("bsf","(%s >> 3),(%s & 7)",
                       AOP(result)->aopu.aop_dir,
                       AOP(result)->aopu.aop_dir);
      else
        pic16_emitcode("bcf","(%s >> 3),(%s & 7)",
                       AOP(result)->aopu.aop_dir,
                       AOP(result)->aopu.aop_dir);
      goto release;
    }

    /* the right is also a bit variable */
    if (AOP_TYPE(right) == AOP_CRY) {
      pic16_emitpcode(POC_BCF,    pic16_popGet(AOP(result),0));
      pic16_emitpcode(POC_BTFSC,  pic16_popGet(AOP(right),0));
      pic16_emitpcode(POC_BSF,    pic16_popGet(AOP(result),0));

      pic16_emitcode("bcf","(%s >> 3),(%s & 7)",
                     AOP(result)->aopu.aop_dir,
                     AOP(result)->aopu.aop_dir);
      pic16_emitcode("btfsc","(%s >> 3),(%s & 7)",
                     AOP(right)->aopu.aop_dir,
                     AOP(right)->aopu.aop_dir);
      pic16_emitcode("bsf","(%s >> 3),(%s & 7)",
                     AOP(result)->aopu.aop_dir,
                     AOP(result)->aopu.aop_dir);
      goto release ;
    }

    /* we need to or */
    pic16_emitpcode(POC_BCF,    pic16_popGet(AOP(result),0));
    pic16_toBoolean(right);
    emitSKPZ;
    pic16_emitpcode(POC_BSF,    pic16_popGet(AOP(result),0));
    //pic16_aopPut(AOP(result),"a",0);
    goto release ;
  }

  /* bit variables done */
  /* general case */
  size = AOP_SIZE(result);
  offset = 0 ;

  if(AOP_TYPE(right) == AOP_LIT) {
        if(!(IS_FLOAT(operandType( right )) || IS_FIXED(operandType(right))))
                lit = (unsigned long)floatFromVal(AOP(right)->aopu.aop_lit);
        else{
           union {
              unsigned long lit_int;
              float lit_float;
            } info;
        

              if(IS_FIXED16X16(operandType(right))) {
                lit = (unsigned long)fixed16x16FromDouble( floatFromVal( AOP(right)->aopu.aop_lit));
              } else {
                /* take care if literal is a float */
                info.lit_float = floatFromVal(AOP(right)->aopu.aop_lit);
                lit = info.lit_int;
              }
        }
  }

//  fprintf(stderr, "%s:%d: assigning value 0x%04lx (%d:%d)\n", __FUNCTION__, __LINE__, lit,
//                      sizeof(unsigned long int), sizeof(float));


  if (AOP_TYPE(right) == AOP_REG) {
    DEBUGpic16_emitcode(";   ", "%s:%d assign from register\n", __FUNCTION__, __LINE__);
    while (size--) {
      pic16_emitpcode (POC_MOVFF, pic16_popGet2(AOP(right), AOP(result), offset++));
    } // while
    goto release;
  }

  /* when do we have to read the program memory?
   * - if right itself is a symbol in code space
   *   (we don't care what it points to if it's a pointer)
   * - AND right is not a function (we would want its address)
   */
  if(AOP_TYPE(right) != AOP_LIT
        && IN_CODESPACE(SPEC_OCLS(OP_SYM_ETYPE(right)))
        && !IS_FUNC(OP_SYM_TYPE(right))
        && !IS_ITEMP(right))
  {
        DEBUGpic16_emitcode(";   ", "%s:%d symbol in code space, take special care\n", __FUNCTION__, __LINE__);
        fprintf(stderr, "%s:%d symbol %s = [ %s ] is in code space\n", __FILE__, __LINE__, OP_SYMBOL(result)->name, OP_SYMBOL(right)->name);

        // set up table pointer
        if(is_LitOp(right)) {
//              fprintf(stderr, "%s:%d inside block 1\n", __FILE__, __LINE__);
                pic16_emitpcode(POC_MOVLW,pic16_popGet(AOP(right),0));
                pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_tblptrl));
                pic16_emitpcode(POC_MOVLW,pic16_popGet(AOP(right),1));
                pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_tblptrh));
                pic16_emitpcode(POC_MOVLW,pic16_popGet(AOP(right),2));
                pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_tblptru));
        } else {
//              fprintf(stderr, "%s:%d inside block 2\n", __FILE__, __LINE__);
                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),0),
                                pic16_popCopyReg(&pic16_pc_tblptrl)));
                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),1),
                                pic16_popCopyReg(&pic16_pc_tblptrh)));
                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),2),
                                pic16_popCopyReg(&pic16_pc_tblptru)));
        }

        /* must fetch 3 bytes for pointers (was OP_SYM_ETYPE before) */
        size = min(getSize(OP_SYM_TYPE(right)), AOP_SIZE(result));
        while(size--) {
                pic16_emitpcodeNULLop(POC_TBLRD_POSTINC);
                pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_tablat),
                        pic16_popGet(AOP(result),offset)));
                offset++;
        }

        /* FIXME: for pointers we need to extend differently (according
         * to pointer type DATA/CODE/EEPROM/... :*/
        size = getSize(OP_SYM_TYPE(right));
        if(AOP_SIZE(result) > size) {
                size = AOP_SIZE(result) - size;
                while(size--) {
                        pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result), offset));
                        offset++;
                }
        }
        goto release;
  }



#if 0
/* VR - What is this?! */
  if( AOP_TYPE(right) == AOP_DIR  && (AOP_TYPE(result) == AOP_REG) && size==1)  {
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
    if(aopIdx(AOP(result),0) == 4) {

      /* this is a workaround to save value of right into wreg too,
       * value of wreg is going to be used later */
      DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);
      pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),offset));
      pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset));
      goto release;
    } else
//      assert(0);
      DEBUGpic16_emitcode ("; WARNING","%s  %d ignoring register storage",__FUNCTION__,__LINE__);
  }
#endif

  know_W=-1;
  while (size--) {
  DEBUGpic16_emitcode ("; ***","%s  %d size %d",__FUNCTION__,__LINE__, size);
    if(AOP_TYPE(right) == AOP_LIT) {
      if(lit&0xff) {
        if(know_W != (lit&0xff))
          pic16_emitpcode(POC_MOVLW,pic16_popGetLit(lit&0xff));
        know_W = lit&0xff;
        pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset));
      } else
        pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offset));

      lit >>= 8;

    } else if (AOP_TYPE(right) == AOP_CRY) {
      pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offset));
      if(offset == 0) {
        //debugf("%s: BTFSS offset == 0\n", __FUNCTION__);
        pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(right),0));
        pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),0));
      }
    } else if ( (AOP_TYPE(right) == AOP_PCODE) && (AOP(right)->aopu.pcop->type == PO_IMMEDIATE) ) {
        pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),offset));
        pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset));
    } else {
      DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

      if(!_G.resDirect)         /* use this aopForSym feature */
        pic16_emitpcode(POC_MOVFF, pic16_popGet2(AOP(right), AOP(result), offset));
    }
            
    offset++;
  }
  
 release:
  pic16_freeAsmop (right,NULL,ic,FALSE);
  pic16_freeAsmop (result,NULL,ic,TRUE);
}   

/*-----------------------------------------------------------------*/
/* genJumpTab - generates code for jump table                       */
/*-----------------------------------------------------------------*/
static void genJumpTab (iCode *ic)
{
  symbol *jtab;
  char *l;
  pCodeOp *jt_offs;
  pCodeOp *jt_offs_hi;
  pCodeOp *jt_label;

    FENTRY;

    pic16_aopOp(IC_JTCOND(ic),ic,FALSE);
    /* get the condition into accumulator */
    l = pic16_aopGet(AOP(IC_JTCOND(ic)),0,FALSE,FALSE);
    MOVA(l);
    /* multiply by three */
    pic16_emitcode("add","a,acc");
    pic16_emitcode("add","a,%s",pic16_aopGet(AOP(IC_JTCOND(ic)),0,FALSE,FALSE));

    jtab = newiTempLabel(NULL);
    pic16_emitcode("mov","dptr,#%05d_DS_",jtab->key+100);
    pic16_emitcode("jmp","@a+dptr");
    pic16_emitcode("","%05d_DS_:",jtab->key+100);

#if 0
    pic16_emitpcode(POC_MOVLW, pic16_popGetLabel(jtab->key));
    pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(IC_JTCOND(ic)),0));
    emitSKPNC;
    pic16_emitpcode(POC_INCF, pic16_popCopyReg(&pic16_pc_pclath));
    pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_pcl));
    pic16_emitpLabel(jtab->key);

#else

    jt_offs = pic16_popGetTempReg(0);
    jt_offs_hi = pic16_popGetTempReg(1);
    jt_label = pic16_popGetLabel (jtab->key);
    //fprintf (stderr, "Creating jump table...\n");

    // calculate offset into jump table (idx * sizeof (GOTO))
    pic16_emitpcode(POC_CLRF  , jt_offs_hi);
    pic16_emitpcode(POC_RLCFW , pic16_popGet(AOP(IC_JTCOND(ic)),0));
    pic16_emitpcode(POC_RLCF  , jt_offs_hi);
    pic16_emitpcode(POC_RLCFW , pic16_popCopyReg(&pic16_pc_wreg));
    pic16_emitpcode(POC_RLCF  , jt_offs_hi);
    pic16_emitpcode(POC_ANDLW , pic16_popGetLit (0xFC));
    pic16_emitpcode(POC_MOVWF , jt_offs);

    // prepare PCLATx (set to first entry in jump table)
    pic16_emitpcode(POC_MOVLW , pic16_popGetImmd(jt_label->name, 2, 0));
    pic16_emitpcode(POC_MOVWF , pic16_popCopyReg(&pic16_pc_pclatu));
    pic16_emitpcode(POC_MOVLW , pic16_popGetImmd(jt_label->name, 1, 0));
    pic16_emitpcode(POC_MOVWF , pic16_popCopyReg(&pic16_pc_pclath));
    pic16_emitpcode(POC_MOVLW , pic16_popGetImmd(jt_label->name, 0, 0));

    // set PCLATx to selected entry (new PCL is stored in jt_offs)
    pic16_emitpcode(POC_ADDWF , jt_offs);
    pic16_emitpcode(POC_MOVFW , jt_offs_hi);
    pic16_emitpcode(POC_ADDWFC, pic16_popCopyReg(&pic16_pc_pclath));
    emitSKPNC;
    pic16_emitpcode(POC_INCF  , pic16_popCopyReg(&pic16_pc_pclatu));

    // release temporaries and prepare jump into table (new PCL --> WREG)
    pic16_emitpcode(POC_MOVFW , jt_offs);
    pic16_popReleaseTempReg (jt_offs_hi, 1);
    pic16_popReleaseTempReg (jt_offs, 0);

    // jump into the table
    pic16_emitpcode(POC_MOVWF , pic16_popCopyReg(&pic16_pc_pcl));

    pic16_emitpLabelFORCE(jtab->key);
#endif

    pic16_freeAsmop(IC_JTCOND(ic),NULL,ic,TRUE);
//          pic16_emitpinfo(INF_LOCALREGS, pic16_newpCodeOpLocalRegs(LR_ENTRY_BEGIN));

    pic16_emitpinfo (INF_OPTIMIZATION, pic16_newpCodeOpOpt (OPT_JUMPTABLE_BEGIN, ""));
    /* now generate the jump labels */
    for (jtab = setFirstItem(IC_JTLABELS(ic)) ; jtab;
         jtab = setNextItem(IC_JTLABELS(ic))) {
//        pic16_emitcode("ljmp","%05d_DS_",jtab->key+100);
        pic16_emitpcode(POC_GOTO,pic16_popGetLabel(jtab->key));
        
    }
    pic16_emitpinfo (INF_OPTIMIZATION, pic16_newpCodeOpOpt (OPT_JUMPTABLE_END, ""));

}

/*-----------------------------------------------------------------*/
/* genMixedOperation - gen code for operators between mixed types  */
/*-----------------------------------------------------------------*/
/*
  TSD - Written for the PIC port - but this unfortunately is buggy.
  This routine is good in that it is able to efficiently promote 
  types to different (larger) sizes. Unfortunately, the temporary
  variables that are optimized out by this routine are sometimes
  used in other places. So until I know how to really parse the 
  iCode tree, I'm going to not be using this routine :(.
*/
static int genMixedOperation (iCode *ic)
{
#if 0
  operand *result = IC_RESULT(ic);
  sym_link *ctype = operandType(IC_LEFT(ic));
  operand *right = IC_RIGHT(ic);
  int ret = 0;
  int big,small;
  int offset;

  iCode *nextic;
  operand *nextright=NULL,*nextleft=NULL,*nextresult=NULL;

  pic16_emitcode("; ***","%s  %d",__FUNCTION__,__LINE__);

  nextic = ic->next;
  if(!nextic)
    return 0;

  nextright = IC_RIGHT(nextic);
  nextleft  = IC_LEFT(nextic);
  nextresult = IC_RESULT(nextic);

  pic16_aopOp(right,ic,FALSE);
  pic16_aopOp(result,ic,FALSE);
  pic16_aopOp(nextright,  nextic, FALSE);
  pic16_aopOp(nextleft,   nextic, FALSE);
  pic16_aopOp(nextresult, nextic, FALSE);

  if (pic16_sameRegs(AOP(IC_RESULT(ic)), AOP(IC_RIGHT(nextic)))) {

    operand *t = right;
    right = nextright;
    nextright = t; 

    pic16_emitcode(";remove right +","");

  } else   if (pic16_sameRegs(AOP(IC_RESULT(ic)), AOP(IC_LEFT(nextic)))) {
/*
    operand *t = right;
    right = nextleft;
    nextleft = t; 
*/
    pic16_emitcode(";remove left +","");
  } else
    return 0;

  big = AOP_SIZE(nextleft);
  small = AOP_SIZE(nextright);

  switch(nextic->op) {

  case '+':
    pic16_emitcode(";optimize a +","");
    /* if unsigned or not an integral type */
    if (AOP_TYPE(IC_LEFT(nextic)) == AOP_CRY) {
      pic16_emitcode(";add a bit to something","");
    } else {

      pic16_emitcode("movf","%s,w",AOP(nextright)->aopu.aop_dir);

      if (!pic16_sameRegs(AOP(IC_LEFT(nextic)), AOP(IC_RESULT(nextic))) ) {
        pic16_emitcode("addwf","%s,w",AOP(nextleft)->aopu.aop_dir);
        pic16_emitcode("movwf","%s",pic16_aopGet(AOP(IC_RESULT(nextic)),0,FALSE,FALSE));
      } else
        pic16_emitcode("addwf","%s,f",AOP(nextleft)->aopu.aop_dir);

      offset = 0;
      while(--big) {

        offset++;

        if(--small) {
          if (!pic16_sameRegs(AOP(IC_LEFT(nextic)), AOP(IC_RESULT(nextic))) ){
            pic16_emitcode("movf","%s,w",pic16_aopGet(AOP(IC_LEFT(nextic)),offset,FALSE,FALSE));
            pic16_emitcode("movwf","%s,f",pic16_aopGet(AOP(IC_RESULT(nextic)),offset,FALSE,FALSE) );
          }

          pic16_emitcode("movf","%s,w", pic16_aopGet(AOP(IC_LEFT(nextic)),offset,FALSE,FALSE));
          emitSKPNC;
          pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
                   AOP(IC_RIGHT(nextic))->aopu.aop_dir,
                   AOP(IC_RIGHT(nextic))->aopu.aop_dir);
          pic16_emitcode(" incf","%s,w", pic16_aopGet(AOP(IC_LEFT(nextic)),offset,FALSE,FALSE));
          pic16_emitcode("movwf","%s", pic16_aopGet(AOP(IC_RESULT(nextic)),offset,FALSE,FALSE));

        } else {
          pic16_emitcode("rlf","known_zero,w");

          /*
            if right is signed
              btfsc  right,7
               addlw ff
          */
          if (!pic16_sameRegs(AOP(IC_LEFT(nextic)), AOP(IC_RESULT(nextic))) ){
            pic16_emitcode("addwf","%s,w",pic16_aopGet(AOP(IC_LEFT(nextic)),offset,FALSE,FALSE));
            pic16_emitcode("movwf","%s,f",pic16_aopGet(AOP(IC_RESULT(nextic)),offset,FALSE,FALSE) );
          } else {
            pic16_emitcode("addwf","%s,f",pic16_aopGet(AOP(IC_RESULT(nextic)),offset,FALSE,FALSE) );
          }
        }
      }
      ret = 1;
    }
  }
  ret = 1;

release:
  pic16_freeAsmop(right,NULL,ic,TRUE);
  pic16_freeAsmop(result,NULL,ic,TRUE);
  pic16_freeAsmop(nextright,NULL,ic,TRUE);
  pic16_freeAsmop(nextleft,NULL,ic,TRUE);
  if(ret)
    nextic->generated = 1;

  return ret;
#else
  return 0;
#endif
}
/*-----------------------------------------------------------------*/
/* genCast - gen code for casting                                  */
/*-----------------------------------------------------------------*/
static void genCast (iCode *ic)
{
  operand *result = IC_RESULT(ic);
  sym_link *ctype = operandType(IC_LEFT(ic));
  sym_link *rtype = operandType(IC_RIGHT(ic));
  sym_link *restype = operandType(IC_RESULT(ic));
  operand *right = IC_RIGHT(ic);
  int size, offset ;


    FENTRY;

        /* if they are equivalent then do nothing */
//      if (operandsEqu(IC_RESULT(ic),IC_RIGHT(ic)))
//              return ;

        pic16_aopOp(result,ic,FALSE);
        pic16_aopOp(right,ic,FALSE) ;

        DEBUGpic16_pic16_AopType(__LINE__,NULL,right,result);


        /* if the result is a bit */
        if (AOP_TYPE(result) == AOP_CRY) {
        
                /* if the right size is a literal then
                 * we know what the value is */
                DEBUGpic16_emitcode("; ***","%s  %d",__FUNCTION__,__LINE__);

                if (AOP_TYPE(right) == AOP_LIT) {
                        pic16_emitpcode(  ( ((int) operandLitValue(right)) ? POC_BSF : POC_BCF),
                                pic16_popGet(AOP(result),0));

                        if (((int) operandLitValue(right))) 
                                pic16_emitcode("bsf","(%s >> 3), (%s & 7)",
                                        AOP(result)->aopu.aop_dir,
                                        AOP(result)->aopu.aop_dir);
                        else
                                pic16_emitcode("bcf","(%s >> 3), (%s & 7)",
                                        AOP(result)->aopu.aop_dir,
                                        AOP(result)->aopu.aop_dir);
                        goto release;
                }

                /* the right is also a bit variable */
                if (AOP_TYPE(right) == AOP_CRY) {
                        emitCLRC;
                        pic16_emitpcode(POC_BTFSC,  pic16_popGet(AOP(right),0));

                        pic16_emitcode("clrc","");
                        pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
                                AOP(right)->aopu.aop_dir,
                                AOP(right)->aopu.aop_dir);
                        pic16_aopPut(AOP(result),"c",0);
                        goto release ;
                }

                /* we need to or */
                if (AOP_TYPE(right) == AOP_REG) {
                        pic16_emitpcode(POC_BCF,    pic16_popGet(AOP(result),0));
                        pic16_emitpcode(POC_BTFSC,  pic16_newpCodeOpBit(pic16_aopGet(AOP(right),0,FALSE,FALSE),0,0, PO_GPR_REGISTER));
                        pic16_emitpcode(POC_BSF,    pic16_popGet(AOP(result),0));
                }
                pic16_toBoolean(right);
                pic16_aopPut(AOP(result),"a",0);
                goto release ;
        }

        if ((AOP_TYPE(right) == AOP_CRY) && (AOP_TYPE(result) == AOP_REG)) {
          int offset = 1;

                size = AOP_SIZE(result);

                DEBUGpic16_emitcode("; ***","%s  %d",__FUNCTION__,__LINE__);

                pic16_emitpcode(POC_CLRF,   pic16_popGet(AOP(result),0));
                pic16_emitpcode(POC_BTFSC,  pic16_popGet(AOP(right),0));
                pic16_emitpcode(POC_INCF,   pic16_popGet(AOP(result),0));

                while (size--)
                        pic16_emitpcode(POC_CLRF,   pic16_popGet(AOP(result),offset++));

                goto release;
        }

        if(IS_BITFIELD(getSpec(restype))
          && IS_BITFIELD(getSpec(rtype))) {
          DEBUGpic16_emitcode("***", "%d casting a bit to another bit", __LINE__);
        }

        /* if they are the same size : or less */
        if (AOP_SIZE(result) <= AOP_SIZE(right)) {

                /* if they are in the same place */
                if (pic16_sameRegs(AOP(right),AOP(result)))
                        goto release;

                DEBUGpic16_emitcode("; ***","%s  %d",__FUNCTION__,__LINE__);
#if 0
                if (IS_PTR_CONST(rtype))
#else
                if (IS_CODEPTR(rtype))
#endif
                        DEBUGpic16_emitcode ("; ***","%d - right is const pointer",__LINE__);

#if 0
                if (IS_PTR_CONST(operandType(IC_RESULT(ic))))
#else
                if (IS_CODEPTR(operandType(IC_RESULT(ic))))
#endif
                        DEBUGpic16_emitcode ("; ***","%d - result is const pointer",__LINE__);

#if 0
                if(AOP_TYPE(right) == AOP_IMMD) {
                  pCodeOp *pcop0, *pcop1, *pcop2;
                  symbol *sym = OP_SYMBOL( right );

                        size = AOP_SIZE(result);
                        /* low */
                        pcop0 = PCOP(pic16_newpCodeOpImmd(sym->rname, 0, 0, IN_CODESPACE( SPEC_OCLS(sym->etype))));
                        /* high */
                        pcop1 = PCOP(pic16_newpCodeOpImmd(sym->rname, 1, 0, IN_CODESPACE( SPEC_OCLS(sym->etype))));
                        /* upper */
                        pcop2 = PCOP(pic16_newpCodeOpImmd(sym->rname, 2, 0, IN_CODESPACE( SPEC_OCLS(sym->etype))));
        
                        if (size == 3) {
                                pic16_emitpcode(POC_MOVLW, pcop0);
                                pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 0));
                                pic16_emitpcode(POC_MOVLW, pcop1);
                                pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 1));
                                pic16_emitpcode(POC_MOVLW, pcop2);
                                pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 2));
                        } else
                        if (size == 2) {
                                pic16_emitpcode(POC_MOVLW, pcop0);
                                pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0));
                                pic16_emitpcode(POC_MOVLW, pcop1);
                                pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),1));
                        } else {
                                pic16_emitpcode(POC_MOVLW, pcop0);
                                pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0));
                        }
                } else
#endif
                if ((AOP_TYPE(right) == AOP_PCODE) && AOP(right)->aopu.pcop->type == PO_IMMEDIATE) {
                        pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),0));
                        pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0));
                        pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),1));
                        pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),1));
                        if(AOP_SIZE(result) <2)
                                fprintf(stderr,"%d -- result is not big enough to hold a ptr\n",__LINE__);
                } else {
                        /* if they in different places then copy */
                        size = AOP_SIZE(result);
                        offset = 0 ;
                        while (size--) {
                                pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),offset));
                                pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset));
                                offset++;
                        }
                }
                goto release;
        }

        /* if the result is of type pointer */
        if (IS_PTR(ctype)) {
          int p_type;
          sym_link *type = operandType(right);
          sym_link *etype = getSpec(type);

                DEBUGpic16_emitcode("; ***","%s  %d - pointer cast",__FUNCTION__,__LINE__);

                /* pointer to generic pointer */
                if (IS_GENPTR(ctype)) {
                  char *l = zero;
            
                        if (IS_PTR(type)) 
                                p_type = DCL_TYPE(type);
                        else {
                /* we have to go by the storage class */
                p_type = PTR_TYPE(SPEC_OCLS(etype));

/*              if (SPEC_OCLS(etype)->codesp )  */
/*                  p_type = CPOINTER ;  */
/*              else */
/*                  if (SPEC_OCLS(etype)->fmap && !SPEC_OCLS(etype)->paged) */
/*                      p_type = FPOINTER ; */
/*                  else */
/*                      if (SPEC_OCLS(etype)->fmap && SPEC_OCLS(etype)->paged) */
/*                          p_type = PPOINTER; */
/*                      else */
/*                          if (SPEC_OCLS(etype) == idata ) */
/*                              p_type = IPOINTER ; */
/*                          else */
/*                              p_type = POINTER ; */
            }
                
            /* the first two bytes are known */
      DEBUGpic16_emitcode("; ***","%s  %d - pointer cast2",__FUNCTION__,__LINE__);
            size = GPTRSIZE - 1; 
            offset = 0 ;
            while (size--) {
              if(offset < AOP_SIZE(right)) {
                DEBUGpic16_emitcode("; ***","%s  %d - pointer cast3 ptype = 0x%x",__FUNCTION__,__LINE__, p_type);
                pic16_mov2f(AOP(result), AOP(right), offset);
/*
                if ((AOP_TYPE(right) == AOP_PCODE) && 
                    AOP(right)->aopu.pcop->type == PO_IMMEDIATE) {
                  pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),offset));
                  pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset));
                } else { 
                  
                  pic16_aopPut(AOP(result),
                         pic16_aopGet(AOP(right),offset,FALSE,FALSE),
                         offset);
                }
*/
              } else 
                pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),offset));
              offset++;
            }
            /* the last byte depending on type */
            switch (p_type) {
            case IPOINTER:
            case POINTER:
                pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0x80));
                pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), GPTRSIZE - 1));
//              pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),GPTRSIZE - 1));
                break;

            case CPOINTER:
                pic16_emitpcode(POC_MOVFF, pic16_popGet2(AOP(right), AOP(result), GPTRSIZE-1));
                break;

            case FPOINTER:
              pic16_emitcode(";BUG!? ","%d",__LINE__);
                l = one;
                break;
            case PPOINTER:
              pic16_emitcode(";BUG!? ","%d",__LINE__);
                l = "#0x03";
                break;

            case GPOINTER:
                if (GPTRSIZE > AOP_SIZE(right)) {
                  // assume data pointer... THIS MIGHT BE WRONG!
                  pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0x80));
                  pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), GPTRSIZE - 1));
                } else {
                  pic16_emitpcode(POC_MOVFF, pic16_popGet2(AOP(right), AOP(result), GPTRSIZE-1));
                }
              break;
              
            default:
                /* this should never happen */
                werror(E_INTERNAL_ERROR,__FILE__,__LINE__,
                       "got unknown pointer type");
                exit(1);
            }
            //pic16_aopPut(AOP(result),l, GPTRSIZE - 1);            
            goto release ;
        }
        
        
        assert( 0 );
        /* just copy the pointers */
        size = AOP_SIZE(result);
        offset = 0 ;
        while (size--) {
            pic16_aopPut(AOP(result),
                   pic16_aopGet(AOP(right),offset,FALSE,FALSE),
                   offset);
            offset++;
        }
        goto release ;
    }
    


    /* so we now know that the size of destination is greater
    than the size of the source.
    Now, if the next iCode is an operator then we might be
    able to optimize the operation without performing a cast.
    */
    if(genMixedOperation(ic))
      goto release;

    DEBUGpic16_emitcode("; ***","%s  %d",__FUNCTION__,__LINE__);
    
    /* we move to result for the size of source */
    size = AOP_SIZE(right);
    offset = 0 ;

    while (size--) {
      if(!_G.resDirect)
        pic16_mov2f(AOP(result), AOP(right), offset);
      offset++;
    }

    /* now depending on the sign of the destination */
    size = AOP_SIZE(result) - AOP_SIZE(right);
    /* if unsigned or not an integral type */
    if (SPEC_USIGN( getSpec(rtype) ) || !IS_SPEC(rtype)) {
      while (size--)
        pic16_emitpcode(POC_CLRF,   pic16_popGet(AOP(result),offset++));
    } else {
      /* we need to extend the sign :( */

      if(size == 1) {
        /* Save one instruction of casting char to int */
        pic16_emitpcode(POC_CLRF,   pic16_popGet(AOP(result),offset));
        pic16_emitpcode(POC_BTFSC,  pic16_newpCodeOpBit(pic16_aopGet(AOP(right),offset-1,FALSE,FALSE),7,0, PO_GPR_REGISTER));
        pic16_emitpcode(POC_SETF,   pic16_popGet(AOP(result),offset));
      } else {
        pic16_emitpcode(POC_CLRF,pic16_popCopyReg(&pic16_pc_wreg));

        if(offset)
          pic16_emitpcode(POC_BTFSC,   pic16_newpCodeOpBit(pic16_aopGet(AOP(right),offset-1,FALSE,FALSE),7,0, PO_GPR_REGISTER));
        else
          pic16_emitpcode(POC_BTFSC,   pic16_newpCodeOpBit(pic16_aopGet(AOP(right),offset,FALSE,FALSE),7,0, PO_GPR_REGISTER));
        
        pic16_emitpcode(POC_MOVLW,   pic16_popGetLit(0xff));

        while (size--)
          pic16_emitpcode(POC_MOVWF,   pic16_popGet(AOP(result),offset++));
      }
    }

release:
    pic16_freeAsmop(right,NULL,ic,TRUE);
    pic16_freeAsmop(result,NULL,ic,TRUE);

}

/*-----------------------------------------------------------------*/
/* genDjnz - generate decrement & jump if not zero instrucion      */
/*-----------------------------------------------------------------*/
static int genDjnz (iCode *ic, iCode *ifx)
{
    symbol *lbl, *lbl1;
    DEBUGpic16_emitcode ("; ***","%s  %d",__FUNCTION__,__LINE__);

    if (!ifx)
        return 0;
    
    /* if the if condition has a false label
       then we cannot save */
    if (IC_FALSE(ifx))
        return 0;

    /* if the minus is not of the form 
       a = a - 1 */
    if (!isOperandEqual(IC_RESULT(ic),IC_LEFT(ic)) ||
        !IS_OP_LITERAL(IC_RIGHT(ic)))
        return 0;

    if (operandLitValue(IC_RIGHT(ic)) != 1)
        return 0;

    /* if the size of this greater than one then no
       saving */
    if (getSize(operandType(IC_RESULT(ic))) > 1)
        return 0;

    /* otherwise we can save BIG */
    lbl = newiTempLabel(NULL);
    lbl1= newiTempLabel(NULL);

    pic16_aopOp(IC_RESULT(ic),ic,FALSE);
    
    if (IS_AOP_PREG(IC_RESULT(ic))) {
        pic16_emitcode("dec","%s",
                 pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
        pic16_emitcode("mov","a,%s",pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
        pic16_emitcode("jnz","%05d_DS_",lbl->key+100);
    } else {    


      pic16_emitpcode(POC_DECFSZ,pic16_popGet(AOP(IC_RESULT(ic)),0));
      pic16_emitpcode(POC_GOTO,pic16_popGetLabel(IC_TRUE(ifx)->key));

      pic16_emitcode("decfsz","%s,f",pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
      pic16_emitcode ("goto","_%05d_DS_",IC_TRUE(ifx)->key+100 + pic16_labelOffset);

    }
    
    pic16_freeAsmop(IC_RESULT(ic),NULL,ic,TRUE);
    ifx->generated = 1;
    return 1;
}

/*-----------------------------------------------------------------*/
/* genReceive - generate code for a receive iCode                  */
/*-----------------------------------------------------------------*/
static void genReceive (iCode *ic)
{    

  FENTRY;

#if 0
  fprintf(stderr, "%s:%d %s for symbol %s\tonStack: %d\n", __FILE__, __LINE__, __FUNCTION__,
        OP_SYMBOL( IC_RESULT(ic) )->rname, OP_SYMBOL( IC_RESULT(ic) )->onStack);
#endif
//  pic16_DumpOp(__FUNCTION__, IC_RESULT(ic));

  if (isOperandInFarSpace(IC_RESULT(ic))
      && ( OP_SYMBOL(IC_RESULT(ic))->isspilt
          || IS_TRUE_SYMOP(IC_RESULT(ic))) ) {

    int size = getSize(operandType(IC_RESULT(ic)));
    int offset =  pic16_fReturnSizePic - size;

      assert( 0 );
      while (size--) {
        pic16_emitcode ("push","%s", (strcmp(fReturn[pic16_fReturnSizePic - offset - 1],"a") ?
                      fReturn[pic16_fReturnSizePic - offset - 1] : "acc"));
                      offset++;
        }

      DEBUGpic16_emitcode ("; ***","1 %s  %d",__FUNCTION__,__LINE__);

      pic16_aopOp(IC_RESULT(ic),ic,FALSE);  
      size = AOP_SIZE(IC_RESULT(ic));
      offset = 0;
      while (size--) {
        pic16_emitcode ("pop","acc");
        pic16_aopPut (AOP(IC_RESULT(ic)),"a",offset++);
      }
  } else {
    DEBUGpic16_emitcode ("; ***","2 %s  %d argreg = %d",__FUNCTION__,__LINE__, SPEC_ARGREG(OP_SYM_ETYPE(IC_RESULT(ic)) ));
    _G.accInUse++;
    pic16_aopOp(IC_RESULT(ic),ic,FALSE);  
    _G.accInUse--;

    /* set pseudo stack pointer to where it should be - dw*/
    GpsuedoStkPtr = ic->parmBytes;

    /* setting GpsuedoStkPtr has side effects here: */
    assignResultValue(IC_RESULT(ic), 0);
  }

  pic16_freeAsmop(IC_RESULT(ic),NULL,ic,TRUE);
}

/*-----------------------------------------------------------------*/
/* genDummyRead - generate code for dummy read of volatiles        */
/*-----------------------------------------------------------------*/
static void
genDummyRead (iCode * ic)
{
  operand *op;
  int i;

  op = IC_RIGHT(ic);
  if (op && IS_SYMOP(op)) {
    if (IN_CODESPACE(SPEC_OCLS(OP_SYM_ETYPE(op)))) {
      fprintf (stderr, "%s: volatile symbols in codespace?!? -- might go wrong...\n", __FUNCTION__);
      return;
    }
    pic16_aopOp (op, ic, FALSE);
    for (i=0; i < AOP_SIZE(op); i++) {
      // may need to protect this from the peepholer -- this is not nice but works...
      pic16_addpCode2pBlock(pb,pic16_newpCodeAsmDir(";", "VOLATILE READ - BEGIN"));
      pic16_mov2w (AOP(op),i);
      pic16_addpCode2pBlock(pb,pic16_newpCodeAsmDir(";", "VOLATILE READ - END"));
    } // for i
    pic16_freeAsmop (op, NULL, ic, TRUE);
  } else if (op) {
    fprintf (stderr, "%s: not implemented for non-symbols (volatile operand might not be read)\n", __FUNCTION__);
  } // if
}

/*-----------------------------------------------------------------*/
/* genpic16Code - generate code for pic16 based controllers        */
/*-----------------------------------------------------------------*/
/*
 * At this point, ralloc.c has gone through the iCode and attempted
 * to optimize in a way suitable for a PIC. Now we've got to generate
 * PIC instructions that correspond to the iCode.
 *
 * Once the instructions are generated, we'll pass through both the
 * peep hole optimizer and the pCode optimizer.
 *-----------------------------------------------------------------*/

void genpic16Code (iCode *lic)
{
  iCode *ic;
  int cln = 0;

    lineHead = lineCurr = NULL;

    pb = pic16_newpCodeChain(GcurMemmap,0,pic16_newpCodeCharP("; Starting pCode block"));
    pic16_addpBlock(pb);

#if 0
    /* if debug information required */
    if (options.debug && currFunc) {
      if (currFunc) {
        cdbSymbol(currFunc,cdbFile,FALSE,TRUE);
      }
    }
#endif

    for (ic = lic ; ic ; ic = ic->next ) {

      DEBUGpic16_emitcode(";ic ", "\t%c 0x%x\t(%s)",ic->op, ic->op, pic16_decodeOp(ic->op));
      if ( cln != ic->lineno ) {
        if ( options.debug ) {
          debugFile->writeCLine (ic);
        }
        
        if(!options.noCcodeInAsm) {
          pic16_addpCode2pBlock(pb, pic16_newpCodeCSource(ic->lineno, ic->filename, 
              printCLine(ic->filename, ic->lineno)));
        }

        cln = ic->lineno ;
      }
        
      if(options.iCodeInAsm) {
        char *l;

          /* insert here code to print iCode as comment */
          l = Safe_strdup(printILine(ic));
          pic16_emitpcomment("ic:%d: %s", ic->seq, l);
      }
        
      /* if the result is marked as
       * spilt and rematerializable or code for
       * this has already been generated then
       * do nothing */
      if (resultRemat(ic) || ic->generated ) 
        continue ;
        
      /* depending on the operation */
      switch (ic->op) {
        case '!' :
          pic16_genNot(ic);
          break;
            
        case '~' :
          pic16_genCpl(ic);
          break;
            
        case UNARYMINUS:
          genUminus (ic);
          break;
            
        case IPUSH:
          genIpush (ic);
          break;
            
        case IPOP:
          /* IPOP happens only when trying to restore a 
           * spilt live range, if there is an ifx statement
           * following this pop then the if statement might
           * be using some of the registers being popped which
           * would destroy the contents of the register so
           * we need to check for this condition and handle it */
           if (ic->next
             && ic->next->op == IFX
             && regsInCommon(IC_LEFT(ic),IC_COND(ic->next))) 
               genIfx (ic->next,ic);
          else
            genIpop (ic);
          break; 
            
        case CALL:
          genCall (ic);
          break;
            
        case PCALL:
          genPcall (ic);
          break;
            
        case FUNCTION:
          genFunction (ic);
          break;
            
        case ENDFUNCTION:
          genEndFunction (ic);
          break;
            
        case RETURN:
          genRet (ic);
          break;
            
        case LABEL:
          genLabel (ic);
          break;
            
        case GOTO:
          genGoto (ic);
          break;
            
        case '+' :
          pic16_genPlus (ic) ;
          break;
            
        case '-' :
          if ( ! genDjnz (ic,ifxForOp(IC_RESULT(ic),ic)))
            pic16_genMinus (ic);
          break;

        case '*' :
          genMult (ic);
          break;
            
        case '/' :
          genDiv (ic) ;
          break;
            
        case '%' :
          genMod (ic);
          break;
            
        case '>' :
          genCmpGt (ic,ifxForOp(IC_RESULT(ic),ic));                   
          break;
            
        case '<' :
          genCmpLt (ic,ifxForOp(IC_RESULT(ic),ic));
          break;
            
        case LE_OP:
        case GE_OP:
        case NE_OP:
          /* note these two are xlated by algebraic equivalence
           * during parsing SDCC.y */
          werror(E_INTERNAL_ERROR,__FILE__,__LINE__,
            "got '>=' or '<=' shouldn't have come here");
          break;

        case EQ_OP:
          genCmpEq (ic,ifxForOp(IC_RESULT(ic),ic));
          break;            
            
        case AND_OP:
          genAndOp (ic);
          break;
            
        case OR_OP:
          genOrOp (ic);
          break;
            
        case '^' :
          genXor (ic,ifxForOp(IC_RESULT(ic),ic));
          break;
            
        case '|' :
          genOr (ic,ifxForOp(IC_RESULT(ic),ic));
          break;
            
        case BITWISEAND:
          genAnd (ic,ifxForOp(IC_RESULT(ic),ic));
          break;
            
        case INLINEASM:
          genInline (ic);
          break;
            
        case RRC:
          genRRC (ic);
          break;
            
        case RLC:
          genRLC (ic);
          break;
            
        case GETHBIT:
          genGetHbit (ic);
          break;
            
        case LEFT_OP:
          genLeftShift (ic);
          break;
            
        case RIGHT_OP:
          genRightShift (ic);
          break;
            
        case GET_VALUE_AT_ADDRESS:
          genPointerGet(ic);
          break;
            
        case '=' :
          if (POINTER_SET(ic))
            genPointerSet(ic);
          else
            genAssign(ic);
          break;
            
        case IFX:
          genIfx (ic,NULL);
          break;
            
        case ADDRESS_OF:
          genAddrOf (ic);
          break;
            
        case JUMPTABLE:
          genJumpTab (ic);
          break;
            
        case CAST:
          genCast (ic);
          break;
            
        case RECEIVE:
          genReceive(ic);
          break;
            
        case SEND:
          addSet(&_G.sendSet,ic);
          break;

        case DUMMY_READ_VOLATILE:
          genDummyRead (ic);
          break;

        default :
          ic = ic;
      }
    }


    /* now we are ready to call the
       peep hole optimizer */
    if (!options.nopeep)
      peepHole (&lineHead);

    /* now do the actual printing */
    printLine (lineHead, codeOutFile);

#ifdef PCODE_DEBUG
    DFPRINTF((stderr,"printing pBlock\n\n"));
    pic16_printpBlock(stdout,pb);
#endif

    return;
}