/*-------------------------------------------------------------------------
- gen.c - source file for code generation for 8051
+ gen.c - source file for code generation for DS80C390
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)
+ DS390 adaptation by Kevin Vigor <kevin@vigor.nu>
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
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 <string.h>
#include <ctype.h>
-#include <common.h>
+#include "common.h"
+#include "main.h"
#include "ralloc.h"
#include "gen.h"
#include "SDCCglobl.h"
#include "newalloc.h"
-#ifdef HAVE_SYS_ISA_DEFS_H
-#include <sys/isa_defs.h>
-#else
-#ifdef HAVE_ENDIAN_H
-#include <endian.h>
-#else
-#if !defined(__BORLANDC__) && !defined(_MSC_VER)
-#warning "Cannot determine ENDIANESS of this machine assuming LITTLE_ENDIAN"
-#warning "If you running sdcc on an INTEL 80x86 Platform you are okay"
-#endif
-#endif
-#endif
+#define BETTER_LITERAL_SHIFT
char *aopLiteral (value * val, int offset);
-#if 0
-//REMOVE ME!!!
extern int allocInfo;
-#endif
/* 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 *zero = "#0";
+static char *one = "#1";
static char *spname;
#define D(x) x
-unsigned fReturnSize_390 = 5; /* shared with ralloc.c */
-static char *fReturn[] =
+#define TR_DPTR(s) if (options.model != MODEL_FLAT24) { emitcode(";", " Use_DPTR1 %s ", s); }
+#define TR_AP(s) if (options.model != MODEL_FLAT24) { emitcode(";", " Use_AP %s ", s); }
+
+unsigned fReturnSizeDS390 = 5; /* shared with ralloc.c */
+static char *fReturn24[] =
{"dpl", "dph", "dpx", "b", "a"};
+static char *fReturn16[] =
+{"dpl", "dph", "b", "a"};
+static char **fReturn = fReturn24;
static char *accUse[] =
{"a", "b"};
-
+static char *dptrn[2][3];
+static char *javaRet[] = { "r0","r1","r2","r3"};
static short rbank = -1;
static struct
short r0Pushed;
short r1Pushed;
short accInUse;
+ short bInUse;
short inLine;
short debugLine;
short nRegsSaved;
+ short dptrInUse;
+ short dptr1InUse;
set *sendSet;
+ iCode *current_iCode;
}
_G;
-static void saverbank (int, iCode *, bool);
+static char *rb1regs[] = {
+ "b1_0","b1_1","b1_2","b1_3","b1_4","b1_5","b1_6","b1_7"
+};
+
+static void saveRBank (int, iCode *, bool);
#define RESULTONSTACK(x) \
(IC_RESULT(x) && IC_RESULT(x)->aop && \
IC_RESULT(x)->aop->type == AOP_STK )
-/* #define MOVA(x) if (strcmp(x,"a") && strcmp(x,"acc")) emitcode("mov","a,%s",x); */
-#define MOVA(x) { char *_mova_tmp = strdup(x); \
- if (strcmp(_mova_tmp,"a") && strcmp(_mova_tmp,"acc")) \
- { \
- emitcode("mov","a,%s",_mova_tmp); \
- } \
- free(_mova_tmp); \
- }
+#define MOVA(x) _movA(x)
+#define MOVB(x) _movB(x)
+
#define CLRC emitcode("clr","c")
#define SETC emitcode("setb","c")
+// A scratch register which will be used to hold
+// result bytes from operands in far space via DPTR2.
+#define DP2_RESULT_REG "_ap"
+
static lineNode *lineHead = NULL;
static lineNode *lineCurr = NULL;
#define MSB16 1
#define MSB24 2
#define MSB32 3
+#define PROTECT_SP {if (options.protect_sp_update) { \
+ symbol *lbl = newiTempLabel(NULL); \
+ emitcode ("setb","F1"); \
+ emitcode ("jbc","EA,!tlabel",lbl->key+100); \
+ emitcode ("clr","F1"); \
+ emitcode ("","!tlabeldef",lbl->key+100); \
+ }}
+#define UNPROTECT_SP { if (options.protect_sp_update) { \
+ symbol *lbl = newiTempLabel(NULL); \
+ emitcode ("jnb","F1,!tlabel",lbl->key+100); \
+ emitcode ("setb","EA"); \
+ emitcode ("","!tlabeldef",lbl->key+100); \
+ }}
+
+static int _currentDPS; /* Current processor DPS. */
+static int _desiredDPS; /* DPS value compiler thinks we should be using. */
+static int _lazyDPS = 0; /* if non-zero, we are doing lazy evaluation of DPS changes. */
/*-----------------------------------------------------------------*/
/* emitcode - writes the code into a file : for now it is simple */
static void
emitcode (char *inst, char *fmt,...)
{
- va_list ap;
- char lb[MAX_INLINEASM];
- char *lbp = lb;
+ va_list ap;
+ char lb[INITIAL_INLINEASM];
+ char *lbp = lb;
+
+ va_start (ap, fmt);
+
+ if (inst && *inst)
+ {
+ if (fmt && *fmt)
+ {
+ SNPRINTF (lb, sizeof(lb), "%s\t", inst);
+ }
+ else
+ {
+ SNPRINTF (lb, sizeof(lb), "%s", inst);
+ }
+
+ tvsprintf (lb + strlen(lb), sizeof(lb) - strlen(lb),
+ fmt, ap);
+ }
+ else
+ {
+ tvsprintf (lb, sizeof(lb), fmt, ap);
+ }
+
- va_start (ap, fmt);
+ while (isspace (*lbp))
+ {
+ lbp++;
+ }
- if (inst && *inst)
+ if (lbp && *lbp)
{
- if (fmt && *fmt)
- sprintf (lb, "%s\t", inst);
- else
- sprintf (lb, "%s", inst);
- vsprintf (lb + (strlen (lb)), fmt, ap);
+ lineCurr = (lineCurr ?
+ connectLine (lineCurr, newLineNode (lb)) :
+ (lineHead = newLineNode (lb)));
}
- else
- vsprintf (lb, fmt, ap);
+
+ lineCurr->isInline = _G.inLine;
+ lineCurr->isDebug = _G.debugLine;
+ lineCurr->ic = _G.current_iCode;
+ lineCurr->aln = ds390newAsmLineNode(_currentDPS);
+ va_end (ap);
+}
+
+/*-----------------------------------------------------------------*/
+/* ds390_emitDebuggerSymbol - associate the current code location */
+/* with a debugger symbol */
+/*-----------------------------------------------------------------*/
+void
+ds390_emitDebuggerSymbol (char * debugSym)
+{
+ _G.debugLine = 1;
+ emitcode ("", "%s ==.", debugSym);
+ _G.debugLine = 0;
+}
- while (isspace (*lbp))
- lbp++;
+//
+// Move the passed value into A unless it is already there.
+//
+static void
+_movA(const char *s)
+{
+ if (strcmp(s,"a") && strcmp(s,"acc"))
+ {
+ emitcode("mov","a,%s",s);
+ }
+}
- if (lbp && *lbp)
- lineCurr = (lineCurr ?
- connectLine (lineCurr, newLineNode (lb)) :
- (lineHead = newLineNode (lb)));
- lineCurr->isInline = _G.inLine;
- lineCurr->isDebug = _G.debugLine;
- va_end (ap);
+//
+// Move the passed value into B unless it is already there.
+//
+static void
+_movB(const char *s)
+{
+ if (strcmp(s,"b"))
+ {
+ emitcode("mov","b,%s",s);
+ }
}
/*-----------------------------------------------------------------*/
static regs *
getFreePtr (iCode * ic, asmop ** aopp, bool result)
{
- bool r0iu = FALSE, r1iu = FALSE;
- bool r0ou = FALSE, r1ou = FALSE;
+ bool r0iu, r1iu;
+ bool r0ou, r1ou;
/* 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)))
- {
+ r0iu = bitVectBitValue (ic->rUsed, R0_IDX);
+ r1iu = bitVectBitValue (ic->rUsed, R1_IDX);
+ if (r0iu && r1iu) {
goto endOfWorld;
}
return NULL;
}
- piCode (ic, stdout);
/* other wise this is true end of the world */
werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
"getFreePtr should never reach here");
exit (1);
+
+ return NULL; // notreached, but makes compiler happy.
}
/*-----------------------------------------------------------------*/
return aop;
}
-static int _currentDPS; /* Current processor DPS. */
-static int _desiredDPS; /* DPS value compiler thinks we should be using. */
-static int _lazyDPS = 0; /* if non-zero, we are doing lazy evaluation of DPS changes. */
/*-----------------------------------------------------------------*/
/* genSetDPTR: generate code to select which DPTR is in use (zero */
if (!n)
{
- emitcode ("mov", "dps, #0x00");
+ emitcode ("mov", "dps,#0");
}
else
{
- emitcode ("mov", "dps, #0x01");
+ TR_DPTR("#1");
+ emitcode ("mov", "dps,#1");
}
}
{
_currentDPS = 0;
_desiredDPS = 0;
+#ifdef BETTER_LITERAL_SHIFT
+ _lazyDPS++;
+#else
_lazyDPS = 1;
+#endif
}
/*-----------------------------------------------------------------*/
static void
_endLazyDPSEvaluation (void)
{
- if (_currentDPS)
+#ifdef BETTER_LITERAL_SHIFT
+ _lazyDPS--;
+#else
+ _lazyDPS = 0;
+#endif
+ if (!_lazyDPS)
+ {
+ if (_currentDPS)
{
genSetDPTR (0);
_flushLazyDPS ();
}
- _lazyDPS = 0;
- _currentDPS = 0;
- _desiredDPS = 0;
+ _currentDPS = 0;
+ _desiredDPS = 0;
+ }
}
}
+/*-----------------------------------------------------------------*/
+/* leftRightUseAcc - returns size of accumulator use by operands */
+/*-----------------------------------------------------------------*/
+static int
+leftRightUseAcc(iCode *ic)
+{
+ operand *op;
+ int size;
+ int accuseSize = 0;
+ int accuse = 0;
+
+ if (!ic)
+ {
+ werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
+ "null iCode pointer");
+ return 0;
+ }
+
+ if (ic->op == IFX)
+ {
+ op = IC_COND (ic);
+ if (IS_SYMOP (op) && OP_SYMBOL (op) && OP_SYMBOL (op)->accuse)
+ {
+ accuse = 1;
+ size = getSize (OP_SYMBOL (op)->type);
+ if (size>accuseSize)
+ accuseSize = size;
+ }
+ }
+ else if (ic->op == JUMPTABLE)
+ {
+ op = IC_JTCOND (ic);
+ if (IS_SYMOP (op) && OP_SYMBOL (op) && OP_SYMBOL (op)->accuse)
+ {
+ accuse = 1;
+ size = getSize (OP_SYMBOL (op)->type);
+ if (size>accuseSize)
+ accuseSize = size;
+ }
+ }
+ else
+ {
+ op = IC_LEFT (ic);
+ if (IS_SYMOP (op) && OP_SYMBOL (op) && OP_SYMBOL (op)->accuse)
+ {
+ accuse = 1;
+ size = getSize (OP_SYMBOL (op)->type);
+ if (size>accuseSize)
+ accuseSize = size;
+ }
+ op = IC_RIGHT (ic);
+ if (IS_SYMOP (op) && OP_SYMBOL (op) && OP_SYMBOL (op)->accuse)
+ {
+ accuse = 1;
+ size = getSize (OP_SYMBOL (op)->type);
+ if (size>accuseSize)
+ accuseSize = size;
+ }
+ }
+
+ if (accuseSize)
+ return accuseSize;
+ else
+ return accuse;
+}
+
/*-----------------------------------------------------------------*/
/* aopForSym - for a true symbol */
/*-----------------------------------------------------------------*/
{
asmop *aop;
memmap *space = SPEC_OCLS (sym->etype);
+ int accuse = leftRightUseAcc (ic);
/* if already has one */
if (sym->aop)
- return sym->aop;
+ {
+ if ((sym->aop->type == AOP_DPTR && useDP2)
+ || (sym->aop->type == AOP_DPTR2 && !useDP2))
+ sym->aop = NULL;
+ else
+ return sym->aop;
+ }
/* assign depending on the storage class */
/* if it is on the stack or indirectly addressable */
if (sym->onStack)
{
- if (_G.accInUse)
+ if (_G.accInUse || accuse)
emitcode ("push", "acc");
+ if (_G.bInUse || (accuse>1))
+ emitcode ("push", "b");
+
emitcode ("mov", "a,_bp");
- emitcode ("add", "a,#0x%02x",
+ emitcode ("add", "a,#!constbyte",
((sym->stack < 0) ?
((char) (sym->stack - _G.nRegsSaved)) :
((char) sym->stack)) & 0xff);
emitcode ("mov", "%s,a",
aop->aopu.aop_ptr->name);
- if (_G.accInUse)
+ if (_G.bInUse || (accuse>1))
+ emitcode ("pop", "b");
+
+ if (_G.accInUse || accuse)
emitcode ("pop", "acc");
}
else
if (sym->onStack && options.stack10bit)
{
+ short stack_val = -((sym->stack < 0) ?
+ ((short) (sym->stack - _G.nRegsSaved)) :
+ ((short) sym->stack)) ;
+ if (useDP2 && _G.dptr1InUse) {
+ emitcode ("push","dpl1");
+ emitcode ("push","dph1");
+ emitcode ("push","dpx1");
+ } else if (_G.dptrInUse ) {
+ emitcode ("push","dpl");
+ emitcode ("push","dph");
+ emitcode ("push","dpx");
+ }
/* It's on the 10 bit stack, which is located in
* far data space.
- */
-
- if (_G.accInUse)
- emitcode ("push", "acc");
-
- emitcode ("mov", "a,_bp");
- emitcode ("add", "a,#0x%02x",
- ((sym->stack < 0) ?
- ((char) (sym->stack - _G.nRegsSaved)) :
- ((char) sym->stack)) & 0xff);
-
- if (useDP2)
- {
- /* genSetDPTR(1); */
- emitcode ("mov", "dpx1,#0x40");
- emitcode ("mov", "dph1,#0x00");
- emitcode ("mov", "dpl1, a");
- /* genSetDPTR(0); */
- }
- else
- {
- emitcode ("mov", "dpx,#0x40");
- emitcode ("mov", "dph,#0x00");
- emitcode ("mov", "dpl, a");
+ */
+ if (stack_val < 0 && stack_val > -5) { /* between -5 & -1 */
+ if (useDP2) {
+ if (options.model == MODEL_FLAT24)
+ {
+ emitcode ("mov", "dpx1,#!constbyte",
+ (options.stack_loc >> 16) & 0xff);
+ }
+ emitcode ("mov", "dph1,_bpx+1");
+
+ emitcode ("mov", "dpl1,_bpx");
+ emitcode ("mov","dps,#1");
+ } else {
+ if (options.model == MODEL_FLAT24)
+ {
+ emitcode ("mov", "dpx,#!constbyte",
+ (options.stack_loc >> 16) & 0xff);
+ }
+ emitcode ("mov", "dph,_bpx+1");
+ emitcode ("mov", "dpl,_bpx");
+ }
+ stack_val = -stack_val;
+ while (stack_val--) {
+ emitcode ("inc","dptr");
+ }
+ if (useDP2) {
+ emitcode("mov","dps,#0");
+ }
+ } else {
+ if (_G.accInUse || accuse)
+ emitcode ("push", "acc");
+
+ if (_G.bInUse || (accuse>1))
+ emitcode ("push", "b");
+
+ emitcode ("mov", "a,_bpx");
+ emitcode ("clr","c");
+ emitcode ("subb", "a,#!constbyte", stack_val & 0xff);
+ emitcode ("mov","b,a");
+ emitcode ("mov","a,_bpx+1");
+ emitcode ("subb","a,#!constbyte",(stack_val >> 8) & 0xff);
+ if (useDP2) {
+ if (options.model == MODEL_FLAT24)
+ {
+ emitcode ("mov", "dpx1,#!constbyte",
+ (options.stack_loc >> 16) & 0xff);
+ }
+ emitcode ("mov", "dph1,a");
+ emitcode ("mov", "dpl1,b");
+ } else {
+ if (options.model == MODEL_FLAT24)
+ {
+ emitcode ("mov", "dpx,#!constbyte",
+ (options.stack_loc >> 16) & 0xff);
+ }
+ emitcode ("mov", "dph,a");
+ emitcode ("mov", "dpl,b");
+ }
+
+ if (_G.bInUse || (accuse>1))
+ emitcode ("pop", "b");
+
+ if (_G.accInUse || accuse)
+ emitcode ("pop", "acc");
}
-
- if (_G.accInUse)
- emitcode ("pop", "acc");
-
- sym->aop = aop = newAsmop ((short) (useDP2 ? AOP_DPTR2 : AOP_DPTR));
- aop->size = getSize (sym->type);
- return aop;
+ sym->aop = aop = newAsmop ((short) (useDP2 ? AOP_DPTR2 : AOP_DPTR));
+ aop->size = getSize (sym->type);
+ return aop;
}
/* if in bit space */
}
/* special case for a function */
- if (IS_FUNC (sym->type))
+ if (IS_FUNC (sym->type) && !(sym->isitmp))
{
sym->aop = aop = newAsmop (AOP_IMMD);
- aop->aopu.aop_immd = Safe_calloc (1, strlen (sym->rname) + 1);
- strcpy (aop->aopu.aop_immd, sym->rname);
+ aop->aopu.aop_immd.aop_immd1 = Safe_strdup(sym->rname);
aop->size = FPTRSIZE;
return aop;
}
{
iCode *ic = sym->rematiCode;
asmop *aop = newAsmop (AOP_IMMD);
-
+ int ptr_type =0;
int val = 0;
for (;;)
val += (int) operandLitValue (IC_RIGHT (ic));
else if (ic->op == '-')
val -= (int) operandLitValue (IC_RIGHT (ic));
- else
- break;
-
+ else if (IS_CAST_ICODE(ic)) {
+ sym_link *from_type = operandType(IC_RIGHT(ic));
+ aop->aopu.aop_immd.from_cast_remat = 1;
+ ic = OP_SYMBOL (IC_RIGHT (ic))->rematiCode;
+ ptr_type = DCL_TYPE(from_type);
+ if (ptr_type == IPOINTER) {
+ // bug #481053
+ ptr_type = POINTER;
+ }
+ continue ;
+ } else break;
+
ic = OP_SYMBOL (IC_LEFT (ic))->rematiCode;
}
if (val)
- sprintf (buffer, "(%s %c 0x%04x)",
- OP_SYMBOL (IC_LEFT (ic))->rname,
- val >= 0 ? '+' : '-',
- abs (val) & 0xffff);
- else
- strcpy (buffer, OP_SYMBOL (IC_LEFT (ic))->rname);
+ {
+ SNPRINTF (buffer, sizeof(buffer),
+ "(%s %c 0x%04x)",
+ OP_SYMBOL (IC_LEFT (ic))->rname,
+ val >= 0 ? '+' : '-',
+ abs (val) & 0xffffff);
+ }
+ else
+ {
+ if (IS_ASSIGN_ICODE(ic) && isOperandLiteral(IC_RIGHT(ic)))
+ {
+ SNPRINTF(buffer, sizeof(buffer),
+ "0x%x",(int) operandLitValue (IC_RIGHT (ic)));
+ }
+ else
+ {
+ strncpyz (buffer, OP_SYMBOL (IC_LEFT (ic))->rname, sizeof(buffer));
+ }
+ }
+
+ aop->aopu.aop_immd.aop_immd1 = Safe_strdup(buffer);
+ /* set immd2 field if required */
+ if (aop->aopu.aop_immd.from_cast_remat)
+ {
+ tsprintf(buffer, sizeof(buffer), "#!constbyte",ptr_type);
+ aop->aopu.aop_immd.aop_immd2 = Safe_strdup(buffer);
+ }
- aop->aopu.aop_immd = Safe_calloc (1, strlen (buffer) + 1);
- strcpy (aop->aopu.aop_immd, buffer);
return aop;
}
+/*-----------------------------------------------------------------*/
+/* aopHasRegs - returns true if aop has regs between from-to */
+/*-----------------------------------------------------------------*/
+static int aopHasRegs(asmop *aop, int from, int to)
+{
+ int size =0;
+
+ if (aop->type != AOP_REG) return 0; /* if not assigned to regs */
+
+ for (; size < aop->size ; size++) {
+ int reg;
+ for (reg = from ; reg <= to ; reg++)
+ if (aop->aopu.aop_reg[size] == ds390_regWithIdx(reg)) return 1;
+ }
+ return 0;
+}
+
/*-----------------------------------------------------------------*/
/* regsInCommon - two operands have some registers in common */
/*-----------------------------------------------------------------*/
(sym2->usl.spillLoc == sym1))
return TRUE;
+ /* are they spilt to the same location */
+ if (IS_ITEMP (op2) &&
+ IS_ITEMP (op1) &&
+ sym2->isspilt &&
+ sym1->isspilt &&
+ (sym1->usl.spillLoc == sym2->usl.spillLoc))
+ return TRUE;
+
return FALSE;
}
/* if already has a asmop then continue */
if (op->aop)
- return;
+ {
+ if ((op->aop->type == AOP_DPTR && useDP2)
+ || (op->aop->type == AOP_DPTR2 && !useDP2))
+ op->aop = NULL;
+ else
+ return;
+ }
/* if the underlying symbol has a aop */
if (IS_SYMOP (op) && OP_SYMBOL (op)->aop)
{
op->aop = OP_SYMBOL (op)->aop;
- return;
+ if ((op->aop->type == AOP_DPTR && useDP2)
+ || (op->aop->type == AOP_DPTR2 && !useDP2))
+ op->aop = NULL;
+ else
+ return;
}
/* if this is a true symbol */
/* a AOP_STR uses DPTR, but DPTR is already in use;
* we're just hosed.
*/
- fprintf (stderr, "*** Internal error: AOP_STR with DPTR in use!\n");
+ werror(E_INTERNAL_ERROR,__FILE__,__LINE__,"AOP_STR with DPTR in use!");
}
aop = op->aop = sym->aop = newAsmop (AOP_STR);
aop->size = getSize (sym->type);
- for (i = 0; i < (int) fReturnSize_390; i++)
+ for (i = 0; i < (int) fReturnSizeDS390; i++)
aop->aopu.aop_str[i] = fReturn[i];
return;
}
-
- /* else spill location */
- sym->aop = op->aop = aop =
- aopForSym (ic, sym->usl.spillLoc, result, useDP2);
+
+ if (sym->dptr) { /* has been allocated to a DPTRn */
+ aop = op->aop = sym->aop = newAsmop (AOP_DPTRn);
+ aop->size = getSize (sym->type);
+ aop->aopu.dptr = sym->dptr;
+ return ;
+ }
+
+ if (sym->usl.spillLoc)
+ {
+ if (getSize(sym->type) != getSize(sym->usl.spillLoc->type))
+ {
+ /* force a new aop if sizes differ */
+ sym->usl.spillLoc->aop = NULL;
+ }
+ sym->aop = op->aop = aop =
+ aopForSym (ic, sym->usl.spillLoc, result, useDP2);
+ aop->size = getSize (sym->type);
+ return;
+ }
+
+ /* else must be a dummy iTemp */
+ sym->aop = op->aop = aop = newAsmop (AOP_DUMMY);
aop->size = getSize (sym->type);
return;
}
if (stk)
{
emitcode ("mov", "a,_bp");
- emitcode ("add", "a,#0x%02x", ((char) stk) & 0xff);
+ emitcode ("add", "a,#!constbyte", ((char) stk) & 0xff);
emitcode ("mov", "%s,a", aop->aopu.aop_ptr->name);
}
else
_G.r1Pushed--;
}
}
+ case AOP_DPTR2:
+ if (_G.dptr1InUse) {
+ emitcode ("pop","dpx1");
+ emitcode ("pop","dph1");
+ emitcode ("pop","dpl1");
+ }
+ break;
+ case AOP_DPTR:
+ if (_G.dptrInUse) {
+ emitcode ("pop","dpx");
+ emitcode ("pop","dph");
+ emitcode ("pop","dpl");
+ }
+ break;
}
-
dealloc:
/* all other cases just dealloc */
if (op)
}
}
-/*------------------------------------------------------------------*/
-/* aopGet - for fetching value of the aop */
-/* */
-/* Set canClobberACC if you are aure it is OK to clobber the value */
-/* in the accumulator. Set it FALSE otherwise; FALSE is always safe, */
-/* just less efficient. */
-/*------------------------------------------------------------------*/
+#define DEFAULT_ACC_WARNING 0
+static int saveAccWarn = DEFAULT_ACC_WARNING;
+
+/*-------------------------------------------------------------------*/
+/* aopGet - for fetching value of the aop */
+/* */
+/* Set saveAcc to NULL if you are sure it is OK to clobber the value */
+/* in the accumulator. Set it to the name of a free register */
+/* if acc must be preserved; the register will be used to preserve */
+/* acc temporarily and to return the result byte. */
+/*-------------------------------------------------------------------*/
static char *
-aopGet (asmop * aop,
- int offset,
- bool bit16,
- bool dname,
- bool canClobberACC)
+aopGet (asmop *aop,
+ int offset,
+ bool bit16,
+ bool dname,
+ char *saveAcc)
{
- char *s = buffer;
- char *rs;
-
/* offset is greater than
size then zero */
if (offset > (aop->size - 1) &&
/* depending on type */
switch (aop->type)
{
+ case AOP_DUMMY:
+ return zero;
case AOP_R0:
case AOP_R1:
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;
+ SNPRINTF (buffer, sizeof(buffer), "@%s", aop->aopu.aop_ptr->name);
+ return Safe_strdup(buffer);
+
+ case AOP_DPTRn:
+ assert(offset <= 3);
+ return dptrn[aop->aopu.dptr][offset];
case AOP_DPTR:
case AOP_DPTR2:
if (aop->type == AOP_DPTR2)
{
genSetDPTR (1);
- if (!canClobberACC)
- {
- emitcode ("xch", "a, ap");
- }
+ }
+
+ if (saveAcc)
+ {
+ TR_AP("#1");
+// if (aop->type != AOP_DPTR2)
+// {
+// if (saveAccWarn) { fprintf(stderr, "saveAcc for DPTR...\n"); }
+// emitcode(";", "spanky: saveAcc for DPTR");
+// }
+
+ emitcode ("xch", "a, %s", saveAcc);
}
_flushLazyDPS ();
if (aop->type == AOP_DPTR2)
{
genSetDPTR (0);
- if (!canClobberACC)
- {
- emitcode ("xch", "a, ap");
- return "ap";
- }
+ }
+
+ if (saveAcc)
+ {
+ TR_AP("#2");
+ emitcode ("xch", "a, %s", saveAcc);
+// if (strcmp(saveAcc, "_ap"))
+// {
+// emitcode(";", "spiffy: non _ap return from aopGet.");
+// }
+
+ return saveAcc;
}
return (dname ? "acc" : "a");
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);
+ if (aop->aopu.aop_immd.from_cast_remat && (offset == (aop->size-1)))
+ {
+ SNPRINTF(buffer, sizeof(buffer),
+ "%s",aop->aopu.aop_immd.aop_immd2);
+ }
+ else if (bit16)
+ {
+ SNPRINTF(buffer, sizeof(buffer),
+ "#%s", aop->aopu.aop_immd.aop_immd1);
+ }
+ else if (offset)
+ {
+ switch (offset) {
+ case 1:
+ tsprintf(buffer, sizeof(buffer),
+ "#!his",aop->aopu.aop_immd.aop_immd1);
+ break;
+ case 2:
+ tsprintf(buffer, sizeof(buffer),
+ "#!hihis",aop->aopu.aop_immd.aop_immd1);
+ break;
+ case 3:
+ tsprintf(buffer, sizeof(buffer),
+ "#!hihihis",aop->aopu.aop_immd.aop_immd1);
+ break;
+ default: /* should not need this (just in case) */
+ SNPRINTF (buffer, sizeof(buffer),
+ "#(%s >> %d)",
+ aop->aopu.aop_immd.aop_immd1,
+ offset * 8);
+ }
+ }
else
- sprintf (s, "#%s",
- aop->aopu.aop_immd);
- rs = Safe_calloc (1, strlen (s) + 1);
- strcpy (rs, s);
- return rs;
+ {
+ SNPRINTF (buffer, sizeof(buffer),
+ "#%s", aop->aopu.aop_immd.aop_immd1);
+ }
+ return Safe_strdup(buffer);
case AOP_DIR:
if (offset)
- sprintf (s, "(%s + %d)",
+ {
+ SNPRINTF (buffer, sizeof(buffer),
+ "(%s + %d)",
aop->aopu.aop_dir,
offset);
+ }
else
- sprintf (s, "%s", aop->aopu.aop_dir);
- rs = Safe_calloc (1, strlen (s) + 1);
- strcpy (rs, s);
- return rs;
+ {
+ SNPRINTF(buffer, sizeof(buffer),
+ "%s", aop->aopu.aop_dir);
+ }
+
+ return Safe_strdup(buffer);
case AOP_REG:
if (dname)
werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
"aopget got unsupported aop->type");
exit (1);
+
+ return NULL; // not reached, but makes compiler happy.
}
/*-----------------------------------------------------------------*/
/* aopPut - puts a string for a aop */
static void
aopPut (asmop * aop, char *s, int offset)
{
- char *d = buffer;
- symbol *lbl;
-
if (aop->size && offset > (aop->size - 1))
{
werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
/* depending on where it is ofcourse */
switch (aop->type)
{
+ case AOP_DUMMY:
+ MOVA (s); /* read s in case it was volatile */
+ break;
+
case AOP_DIR:
- if (offset)
- sprintf (d, "(%s + %d)",
- aop->aopu.aop_dir, offset);
- else
- sprintf (d, "%s", aop->aopu.aop_dir);
-
- if (strcmp (d, s))
- emitcode ("mov", "%s,%s", d, s);
+ if (offset)
+ {
+ SNPRINTF (buffer, sizeof(buffer),
+ "(%s + %d)",
+ aop->aopu.aop_dir, offset);
+ }
+ else
+ {
+ SNPRINTF (buffer, sizeof(buffer),
+ "%s", aop->aopu.aop_dir);
+ }
+
+ if (strcmp (buffer, s))
+ {
+ emitcode ("mov", "%s,%s", buffer, s);
+ }
break;
case AOP_REG:
strcmp (s, "r5") == 0 ||
strcmp (s, "r6") == 0 ||
strcmp (s, "r7") == 0)
- emitcode ("mov", "%s,%s",
- aop->aopu.aop_reg[offset]->dname, s);
- else
- emitcode ("mov", "%s,%s",
- aop->aopu.aop_reg[offset]->name, s);
+ {
+ emitcode ("mov", "%s,%s",
+ aop->aopu.aop_reg[offset]->dname, s);
+ }
+ else
+ {
+ emitcode ("mov", "%s,%s",
+ aop->aopu.aop_reg[offset]->name, s);
+ }
}
break;
+ case AOP_DPTRn:
+ emitcode ("mov","%s,%s",dptrn[aop->aopu.dptr][offset],s);
+ break;
+
case AOP_DPTR:
case AOP_DPTR2:
strcmp (s, "r6") == 0 ||
strcmp (s, "r7") == 0)
{
- char buffer[10];
- sprintf (buffer, "a%s", s);
+ char buff[10];
+ SNPRINTF(buff, sizeof(buff),
+ "a%s", s);
emitcode ("mov", "@%s,%s",
- aop->aopu.aop_ptr->name, buffer);
+ aop->aopu.aop_ptr->name, buff);
+ }
+ else
+ {
+ emitcode ("mov", "@%s,%s", aop->aopu.aop_ptr->name, s);
}
- else
- emitcode ("mov", "@%s,%s", aop->aopu.aop_ptr->name, s);
-
break;
case AOP_STK:
if (strcmp (s, "a") == 0)
emitcode ("push", "acc");
else
- emitcode ("push", "%s", s);
+ if (*s=='@') {
+ MOVA(s);
+ emitcode ("push", "acc");
+ } else {
+ emitcode ("push", s);
+ }
break;
emitcode ("mov", "%s,c", aop->aopu.aop_dir);
else
{
- lbl = newiTempLabel (NULL);
-
if (strcmp (s, "a"))
{
MOVA (s);
}
- emitcode ("clr", "c");
- emitcode ("jz", "%05d$", lbl->key + 100);
- emitcode ("cpl", "c");
- emitcode ("", "%05d$:", lbl->key + 100);
- emitcode ("mov", "%s,c", aop->aopu.aop_dir);
+ {
+ /* set C, if a >= 1 */
+ emitcode ("add", "a,#!constbyte",0xff);
+ emitcode ("mov", "%s,c", aop->aopu.aop_dir);
+ }
}
}
break;
}
-/*-----------------------------------------------------------------*/
-/* reAdjustPreg - points a register back to where it should */
-/*-----------------------------------------------------------------*/
+/*--------------------------------------------------------------------*/
+/* reAdjustPreg - points a register back to where it should (coff==0) */
+/*--------------------------------------------------------------------*/
static void
reAdjustPreg (asmop * aop)
{
- int size;
-
- aop->coff = 0;
- if ((size = aop->size) <= 1)
+ if ((aop->coff==0) || (aop->size <= 1)) {
return;
- size--;
+ }
+
switch (aop->type)
{
case AOP_R0:
case AOP_R1:
- while (size--)
+ while (aop->coff--)
emitcode ("dec", "%s", aop->aopu.aop_ptr->name);
break;
case AOP_DPTR:
genSetDPTR (1);
_flushLazyDPS ();
}
- while (size--)
+ while (aop->coff--)
{
emitcode ("lcall", "__decdptr");
}
break;
}
-
+ aop->coff=0;
}
#define AOP(op) op->aop
#define AOP_INPREG(x) (x && (x->type == AOP_REG && \
(x->aopu.aop_reg[0] == ds390_regWithIdx(R0_IDX) || \
x->aopu.aop_reg[0] == ds390_regWithIdx(R1_IDX) )))
+#define AOP_INDPTRn(x) (AOP_TYPE(x) == AOP_DPTRn)
+#define AOP_USESDPTR(x) ((AOP_TYPE(x) == AOP_DPTR) || (AOP_TYPE(x) == AOP_STR))
+#define AOP_USESDPTR2(x) ((AOP_TYPE(x) == AOP_DPTR2) || (AOP_TYPE(x) == AOP_DPTRn))
+
+// The following two macros can be used even if the aop has not yet been aopOp'd.
+#define AOP_IS_STR(x) (IS_SYMOP(x) && OP_SYMBOL(x)->ruonly)
+#define AOP_IS_DPTRn(x) (IS_SYMOP(x) && OP_SYMBOL(x)->dptr)
/* Workaround for DS80C390 bug: div ab may return bogus results
* if A is accessed in instruction immediately before the div.
* thus avoiding touching A right before the div. \
*/ \
D(emitcode(";", "DS80C390 div bug: rearranged ops.");); \
- L = aopGet(AOP(LEFT),0,FALSE,FALSE,TRUE); \
+ L = aopGet(AOP(LEFT),0,FALSE,FALSE,NULL); \
MOVA(L); \
- emitcode("mov","b,%s",aopGet(AOP(RIGHT),0,FALSE,FALSE,FALSE));\
+ L = aopGet(AOP(RIGHT),0,FALSE,FALSE,"b"); \
+ MOVB(L); \
} \
else \
{ \
/* Just stuff in a nop after loading A. */ \
- emitcode("mov","b,%s",aopGet(AOP(RIGHT),0,FALSE,FALSE,FALSE));\
- L = aopGet(AOP(LEFT),0,FALSE,FALSE,TRUE); \
+ emitcode("mov","b,%s",aopGet(AOP(RIGHT),0,FALSE,FALSE,NULL));\
+ L = aopGet(AOP(LEFT),0,FALSE,FALSE,NULL); \
MOVA(L); \
emitcode("nop", "; workaround for DS80C390 div bug."); \
}
+
/*-----------------------------------------------------------------*/
-/* genNotFloat - generates not for float operations */
+/* opIsGptr: returns non-zero if the passed operand is */
+/* a generic pointer type. */
/*-----------------------------------------------------------------*/
-static void
-genNotFloat (operand * op, operand * res)
+static int
+opIsGptr (operand * op)
{
- int size, offset;
- char *l;
- symbol *tlbl;
+ sym_link *type = operandType (op);
- D (emitcode (";", "genNotFloat ");
- );
-
- /* we will put 127 in the first byte of
- the result */
- aopPut (AOP (res), "#127", 0);
- size = AOP_SIZE (op) - 1;
- offset = 1;
-
- _startLazyDPSEvaluation ();
- l = aopGet (op->aop, offset++, FALSE, FALSE, TRUE);
- MOVA (l);
-
- while (size--)
- {
- emitcode ("orl", "a,%s",
- aopGet (op->aop,
- offset++, FALSE, FALSE, FALSE));
- }
- _endLazyDPSEvaluation ();
- tlbl = newiTempLabel (NULL);
-
- tlbl = newiTempLabel (NULL);
- aopPut (res->aop, one, 1);
- emitcode ("jz", "%05d$", (tlbl->key + 100));
- aopPut (res->aop, zero, 1);
- emitcode ("", "%05d$:", (tlbl->key + 100));
-
- size = res->aop->size - 2;
- offset = 2;
- /* put zeros in the rest */
- while (size--)
- aopPut (res->aop, zero, offset++);
-}
-
-/*-----------------------------------------------------------------*/
-/* opIsGptr: returns non-zero if the passed operand is */
-/* a generic pointer type. */
-/*-----------------------------------------------------------------*/
-static int
-opIsGptr (operand * op)
-{
- sym_link *type = operandType (op);
-
- if ((AOP_SIZE (op) == GPTRSIZE) && IS_GENPTR (type))
- {
- return 1;
- }
- return 0;
-}
+ if ((AOP_SIZE (op) == GPTRSIZE) && IS_GENPTR (type))
+ {
+ return 1;
+ }
+ return 0;
+}
/*-----------------------------------------------------------------*/
/* getDataSize - get the operand data size */
static void
toBoolean (operand * oper)
{
- int size = AOP_SIZE (oper) - 1;
- int offset = 1;
+ int size = AOP_SIZE (oper) - 1;
+ int offset = 1;
+ bool usedB = FALSE;
/* The generic part of a generic pointer should
* not participate in it's truth value.
*/
if (opIsGptr (oper))
{
- D (emitcode (";", "toBoolean: generic ptr special case.");
- );
+ D (emitcode (";", "toBoolean: generic ptr special case."););
size--;
}
_startLazyDPSEvaluation ();
- if (AOP_NEEDSACC (oper))
+ if (AOP_NEEDSACC (oper) && size)
{
- emitcode ("push", "b");
- emitcode ("mov", "b, %s", aopGet (AOP (oper), 0, FALSE, FALSE, FALSE));
+ usedB = TRUE;
+ if (_G.bInUse)
+ {
+ emitcode ("push", "b");
+ }
+ MOVB (aopGet (AOP (oper), 0, FALSE, FALSE, NULL));
}
else
{
- MOVA (aopGet (AOP (oper), 0, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (oper), 0, FALSE, FALSE, NULL));
}
+
while (size--)
{
- if (AOP_NEEDSACC (oper))
+ if (usedB)
{
- emitcode ("orl", "b,%s", aopGet (AOP (oper), offset++, FALSE, FALSE, FALSE));
+ emitcode ("orl", "b,%s",
+ aopGet (AOP (oper), offset++, FALSE, FALSE, NULL));
}
else
{
- emitcode ("orl", "a,%s", aopGet (AOP (oper), offset++, FALSE, FALSE, FALSE));
+ emitcode ("orl", "a,%s",
+ aopGet (AOP (oper), offset++, FALSE, FALSE, NULL));
}
}
_endLazyDPSEvaluation ();
- if (AOP_NEEDSACC (oper))
+ if (usedB)
{
emitcode ("mov", "a,b");
- emitcode ("pop", "b");
+ if (_G.bInUse)
+ {
+ emitcode ("pop", "b");
+ }
+
}
}
genNot (iCode * ic)
{
symbol *tlbl;
- sym_link *optype = operandType (IC_LEFT (ic));
- D (emitcode (";", "genNot ");
- );
+ D (emitcode (";", "genNot "););
/* assign asmOps to operand & result */
aopOp (IC_LEFT (ic), ic, FALSE, FALSE);
- aopOp (IC_RESULT (ic), ic, TRUE, AOP_TYPE (IC_LEFT (ic)) == AOP_DPTR);
+ aopOp (IC_RESULT (ic), ic, TRUE, AOP_USESDPTR(IC_LEFT (ic)));
/* if in bit space then a special case */
if (AOP_TYPE (IC_LEFT (ic)) == AOP_CRY)
goto release;
}
- /* if type float then do float */
- if (IS_FLOAT (optype))
- {
- genNotFloat (IC_LEFT (ic), IC_RESULT (ic));
- goto release;
- }
-
toBoolean (IC_LEFT (ic));
tlbl = newiTempLabel (NULL);
- emitcode ("cjne", "a,#0x01,%05d$", tlbl->key + 100);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("cjne", "a,#1,!tlabel", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
outBitC (IC_RESULT (ic));
release:
{
int offset = 0;
int size;
+ symbol *tlbl;
- D (emitcode (";", "genCpl ");
- );
+ D (emitcode (";", "genCpl "););
/* assign asmOps to operand & result */
aopOp (IC_LEFT (ic), ic, FALSE, FALSE);
- aopOp (IC_RESULT (ic), ic, TRUE, AOP_TYPE (IC_LEFT (ic)) == AOP_DPTR);
-
- /* if both are in bit space then
- a special case */
- if (AOP_TYPE (IC_RESULT (ic)) == AOP_CRY &&
- AOP_TYPE (IC_LEFT (ic)) == AOP_CRY)
- {
+ aopOp (IC_RESULT (ic), ic, TRUE, AOP_USESDPTR(IC_LEFT (ic)));
+ /* special case if in bit space */
+ if (AOP_TYPE (IC_RESULT (ic)) == AOP_CRY) {
+ if (AOP_TYPE (IC_LEFT (ic)) == AOP_CRY) {
emitcode ("mov", "c,%s", IC_LEFT (ic)->aop->aopu.aop_dir);
emitcode ("cpl", "c");
emitcode ("mov", "%s,c", IC_RESULT (ic)->aop->aopu.aop_dir);
goto release;
}
+ tlbl=newiTempLabel(NULL);
+ emitcode ("cjne", "%s,#0x01,%05d$",
+ aopGet(AOP(IC_LEFT(ic)), 0, FALSE,FALSE,NULL), tlbl->key+100);
+ emitcode ("", "%05d$:", tlbl->key+100);
+ outBitC (IC_RESULT(ic));
+ goto release;
+ }
size = AOP_SIZE (IC_RESULT (ic));
_startLazyDPSEvaluation ();
while (size--)
{
- char *l = aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE, TRUE);
- MOVA (l);
+ MOVA (aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE, NULL));
emitcode ("cpl", "a");
aopPut (AOP (IC_RESULT (ic)), "a", offset++);
}
genUminusFloat (operand * op, operand * result)
{
int size, offset = 0;
- char *l;
- /* for this we just need to flip the
- first it then copy the rest in place */
- D (emitcode (";", "genUminusFloat");
- );
-
+
+ D(emitcode (";", "genUminusFloat"););
+
+ /* for this we just copy and then flip the bit */
+
_startLazyDPSEvaluation ();
size = AOP_SIZE (op) - 1;
- l = aopGet (AOP (op), 3, FALSE, FALSE, TRUE);
- MOVA (l);
-
- emitcode ("cpl", "acc.7");
- aopPut (AOP (result), "a", 3);
while (size--)
- {
+ {
aopPut (AOP (result),
- aopGet (AOP (op), offset, FALSE, FALSE, FALSE),
+ aopGet (AOP (op), offset, FALSE, FALSE, NULL),
offset);
offset++;
}
+
+ MOVA(aopGet (AOP (op), offset, FALSE, FALSE, NULL));
+
+ emitcode ("cpl", "acc.7");
+ aopPut (AOP (result), "a", offset);
_endLazyDPSEvaluation ();
}
genUminus (iCode * ic)
{
int offset, size;
- sym_link *optype, *rtype;
-
- D (emitcode (";", "genUminus ");
- );
+ sym_link *optype;
+ D (emitcode (";", "genUminus "););
/* assign asmops */
aopOp (IC_LEFT (ic), ic, FALSE, FALSE);
- aopOp (IC_RESULT (ic), ic, TRUE, AOP_TYPE (IC_LEFT (ic)) == AOP_DPTR);
+ aopOp (IC_RESULT (ic), ic, TRUE, (AOP_TYPE(IC_LEFT (ic)) == AOP_DPTR));
/* if both in bit space then special
case */
}
optype = operandType (IC_LEFT (ic));
- rtype = operandType (IC_RESULT (ic));
/* if float then do float stuff */
if (IS_FLOAT (optype))
_startLazyDPSEvaluation ();
while (size--)
{
- char *l = aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE, TRUE);
+ char *l = aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE, NULL);
if (!strcmp (l, "a"))
{
if (offset == 0)
/* if any remaining bytes in the result */
/* we just need to propagate the sign */
- if ((size = (AOP_SIZE (IC_RESULT (ic)) - AOP_SIZE (IC_LEFT (ic)))))
+ if ((size = (AOP_SIZE(IC_RESULT(ic)) - AOP_SIZE(IC_LEFT(ic)))) != 0)
{
emitcode ("rlc", "a");
emitcode ("subb", "a,acc");
freeAsmop (IC_RESULT (ic), NULL, ic, TRUE);
}
+/*-----------------------------------------------------------------*/
+/* savermask - saves registers in the mask */
+/*-----------------------------------------------------------------*/
+static void savermask(bitVect *rs_mask)
+{
+ int i;
+ if (options.useXstack) {
+ if (bitVectBitValue (rs_mask, R0_IDX))
+ emitcode ("mov", "b,r0");
+ emitcode ("mov", "r0,%s", spname);
+ for (i = 0; i < ds390_nRegs; i++) {
+ if (bitVectBitValue (rs_mask, i)) {
+ if (i == R0_IDX)
+ emitcode ("mov", "a,b");
+ else
+ emitcode ("mov", "a,%s", ds390_regWithIdx (i)->name);
+ emitcode ("movx", "@r0,a");
+ emitcode ("inc", "r0");
+ }
+ }
+ emitcode ("mov", "%s,r0", spname);
+ if (bitVectBitValue (rs_mask, R0_IDX))
+ emitcode ("mov", "r0,b");
+ } else {
+ for (i = 0; i < ds390_nRegs; i++) {
+ if (bitVectBitValue (rs_mask, i))
+ emitcode ("push", "%s", ds390_regWithIdx (i)->dname);
+ }
+ }
+}
+
/*-----------------------------------------------------------------*/
/* saveRegisters - will look for a call and save the registers */
/*-----------------------------------------------------------------*/
static void
saveRegisters (iCode * lic)
{
- int i;
iCode *ic;
bitVect *rsave;
- sym_link *detype;
/* look for call */
for (ic = lic; ic; ic = ic->next)
/* if the registers have been saved already then
do nothing */
- if (ic->regsSaved || (OP_SYMBOL (IC_LEFT (ic))->calleeSave))
- return;
-
- /* find the registers in use at this time
- and push them away to safety */
- rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
- ic->rUsed);
-
+ if (ic->regsSaved
+ || (IS_SYMOP(IC_LEFT(ic)) && IFFUNC_ISNAKED(OP_SYM_TYPE(IC_LEFT(ic))) && !TARGET_IS_DS400) )
+ return ;
+
+ /* special case if DPTR alive across a function call then must save it
+ even though callee saves */
+ if (IS_SYMOP(IC_LEFT(ic)) &&
+ IFFUNC_CALLEESAVES(OP_SYMBOL (IC_LEFT (ic))->type)) {
+ int i;
+ rsave = newBitVect(ic->rMask->size);
+ for (i = DPL_IDX ; i <= B_IDX ; i++ ) {
+ if (bitVectBitValue(ic->rMask,i))
+ rsave = bitVectSetBit(rsave,i);
+ }
+ rsave = bitVectCplAnd(rsave,ds390_rUmaskForOp (IC_RESULT(ic)));
+ } else {
+ /* safe the registers in use at this time but skip the
+ ones for the result */
+ rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic)));
+ }
ic->regsSaved = 1;
- if (options.useXstack)
- {
- if (bitVectBitValue (rsave, R0_IDX))
- emitcode ("mov", "b,r0");
- emitcode ("mov", "r0,%s", spname);
- for (i = 0; i < ds390_nRegs; i++)
- {
- if (bitVectBitValue (rsave, i))
- {
- if (i == R0_IDX)
- emitcode ("mov", "a,b");
- else
- emitcode ("mov", "a,%s", ds390_regWithIdx (i)->name);
- emitcode ("movx", "@r0,a");
- emitcode ("inc", "r0");
- }
+ savermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* usavermask - restore registers with mask */
+/*-----------------------------------------------------------------*/
+static void unsavermask(bitVect *rs_mask)
+{
+ int i;
+ if (options.useXstack) {
+ emitcode ("mov", "r0,%s", spname);
+ for (i = ds390_nRegs; i >= 0; i--) {
+ if (bitVectBitValue (rs_mask, i)) {
+ emitcode ("dec", "r0");
+ emitcode ("movx", "a,@r0");
+ if (i == R0_IDX)
+ emitcode ("mov", "b,a");
+ else
+ emitcode ("mov", "%s,a", ds390_regWithIdx (i)->name);
+ }
+ }
+ emitcode ("mov", "%s,r0", spname);
+ if (bitVectBitValue (rs_mask, R0_IDX))
+ emitcode ("mov", "r0,b");
+ } else {
+ for (i = ds390_nRegs; i >= 0; i--) {
+ if (bitVectBitValue (rs_mask, i))
+ emitcode ("pop", "%s", ds390_regWithIdx (i)->dname);
}
- emitcode ("mov", "%s,r0", spname);
- if (bitVectBitValue (rsave, R0_IDX))
- emitcode ("mov", "r0,b");
}
- else
- for (i = 0; i < ds390_nRegs; i++)
- {
- if (bitVectBitValue (rsave, i))
- emitcode ("push", "%s ;jwk saveRegisters", ds390_regWithIdx (i)->dname);
- }
-
- detype = getSpec (operandType (IC_LEFT (ic)));
- if (detype &&
- (SPEC_BANK (currFunc->etype) != SPEC_BANK (detype)) &&
- IS_ISR (currFunc->etype) &&
- !ic->bankSaved)
-
- saverbank (SPEC_BANK (detype), ic, TRUE);
-
}
+
/*-----------------------------------------------------------------*/
/* unsaveRegisters - pop the pushed registers */
/*-----------------------------------------------------------------*/
static void
unsaveRegisters (iCode * ic)
{
- int i;
bitVect *rsave;
- /* find the registers in use at this time
- and push them away to safety */
- rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
- ic->rUsed);
-
- if (options.useXstack)
- {
- emitcode ("mov", "r0,%s", spname);
- for (i = ds390_nRegs; i >= 0; i--)
- {
- if (bitVectBitValue (rsave, i))
- {
- emitcode ("dec", "r0");
- emitcode ("movx", "a,@r0");
- if (i == R0_IDX)
- emitcode ("mov", "b,a");
- else
- emitcode ("mov", "%s,a", ds390_regWithIdx (i)->name);
- }
- }
- emitcode ("mov", "%s,r0", spname);
- if (bitVectBitValue (rsave, R0_IDX))
- emitcode ("mov", "r0,b");
- }
- else
- for (i = ds390_nRegs; i >= 0; i--)
- {
- if (bitVectBitValue (rsave, i))
- emitcode ("pop", "%s ;jwk unsaveRegisters", ds390_regWithIdx (i)->dname);
+ if (IFFUNC_CALLEESAVES(OP_SYMBOL (IC_LEFT (ic))->type)) {
+ int i;
+ rsave = newBitVect(ic->rMask->size);
+ for (i = DPL_IDX ; i <= B_IDX ; i++ ) {
+ if (bitVectBitValue(ic->rMask,i))
+ rsave = bitVectSetBit(rsave,i);
}
-
+ rsave = bitVectCplAnd(rsave,ds390_rUmaskForOp (IC_RESULT(ic)));
+ } else {
+ /* restore the registers in use at this time but skip the
+ ones for the result */
+ rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic)));
+ }
+ unsavermask(rsave);
}
_startLazyDPSEvaluation ();
while (size--)
{
- char *l = aopGet (AOP (oper), offset++, FALSE, TRUE, FALSE);
+ char *l = aopGet (AOP (oper), offset++, FALSE, TRUE, NULL);
if (AOP_TYPE (oper) != AOP_REG &&
AOP_TYPE (oper) != AOP_DIR &&
strcmp (l, "a"))
{
int offset = 0;
int size = AOP_SIZE (oper);
+ bool pushedAcc = FALSE;
+ if (size == fReturnSizeDS390)
+ {
+ /* I don't think this case can ever happen... */
+ /* ACC is the last part of this. If writing the result
+ * uses AC, we must preserve it.
+ */
+ if (AOP_NEEDSACC(oper))
+ {
+ emitcode(";", "assignResultValue special case for ACC.");
+ emitcode("push", "acc");
+ pushedAcc = TRUE;
+ size--;
+ }
+ }
+
+
_startLazyDPSEvaluation ();
while (size--)
{
offset++;
}
_endLazyDPSEvaluation ();
+
+ if (pushedAcc)
+ {
+ emitcode("pop", "acc");
+ aopPut(AOP(oper), "a", offset);
+ }
}
while (size--)
{
- char *l = aopGet (AOP (IC_LEFT (ic)),
- offset++, FALSE, FALSE, TRUE);
- MOVA (l);
+ MOVA (aopGet (AOP (IC_LEFT (ic)),
+ offset++, FALSE, FALSE, NULL));
emitcode ("movx", "@%s,a", r->name);
emitcode ("inc", "%s", r->name);
}
/*-----------------------------------------------------------------*/
-/* genIpush - genrate code for pushing this gets a little complex */
+/* genIpush - generate code for pushing this gets a little complex */
/*-----------------------------------------------------------------*/
static void
genIpush (iCode * ic)
{
/* and the item is spilt then do nothing */
- if (OP_SYMBOL (IC_LEFT (ic))->isspilt)
+ if (OP_SYMBOL (IC_LEFT (ic))->isspilt || OP_SYMBOL(IC_LEFT(ic))->dptr)
return;
aopOp (IC_LEFT (ic), ic, FALSE, FALSE);
_startLazyDPSEvaluation ();
while (size--)
{
- l = aopGet (AOP (IC_LEFT (ic)), offset++, FALSE, TRUE, TRUE);
+ l = aopGet (AOP (IC_LEFT (ic)), offset++, FALSE, TRUE, NULL);
if (*l == '#')
{
MOVA (l);
l = "acc";
}
- emitcode ("push", "%s ;jwk genIpush: !parm", l);
+ emitcode ("push", "%s", l);
}
_endLazyDPSEvaluation ();
return;
_startLazyDPSEvaluation ();
while (size--)
{
- l = aopGet (AOP (IC_LEFT (ic)), offset++, FALSE, TRUE, FALSE);
+ l = aopGet (AOP (IC_LEFT (ic)), offset++, FALSE, TRUE, NULL);
if (AOP_TYPE (IC_LEFT (ic)) != AOP_REG &&
AOP_TYPE (IC_LEFT (ic)) != AOP_DIR &&
- strcmp (l, "a"))
+ strcmp (l, "acc"))
{
emitcode ("mov", "a,%s", l);
emitcode ("push", "acc");
}
else
- emitcode ("push", "%s ;jwk genIpush", l);
+ {
+ emitcode ("push", "%s", l);
+ }
}
_endLazyDPSEvaluation ();
/* if the temp was not pushed then */
- if (OP_SYMBOL (IC_LEFT (ic))->isspilt)
+ if (OP_SYMBOL (IC_LEFT (ic))->isspilt || OP_SYMBOL (IC_LEFT (ic))->dptr)
return;
aopOp (IC_LEFT (ic), ic, FALSE, FALSE);
_startLazyDPSEvaluation ();
while (size--)
{
- emitcode ("pop", "%s ;jwk genIpop", aopGet (AOP (IC_LEFT (ic)), offset--,
- FALSE, TRUE, TRUE));
+ emitcode ("pop", "%s", aopGet (AOP (IC_LEFT (ic)), offset--,
+ FALSE, TRUE, NULL));
}
_endLazyDPSEvaluation ();
}
/*-----------------------------------------------------------------*/
-/* unsaverbank - restores the resgister bank from stack */
+/* unsaveRBank - restores the resgister bank from stack */
/*-----------------------------------------------------------------*/
static void
-unsaverbank (int bank, iCode * ic, bool popPsw)
+unsaveRBank (int bank, iCode * ic, bool popPsw)
{
int i;
- asmop *aop;
+ asmop *aop = NULL;
regs *r = NULL;
+ if (options.useXstack)
+ {
+ if (!ic)
+ {
+ /* Assume r0 is available for use. */
+ r = ds390_regWithIdx (R0_IDX);;
+ }
+ else
+ {
+ aop = newAsmop (0);
+ r = getFreePtr (ic, &aop, FALSE);
+ }
+ emitcode ("mov", "%s,_spx", r->name);
+ }
+
if (popPsw)
{
if (options.useXstack)
- {
- aop = newAsmop (0);
- r = getFreePtr (ic, &aop, FALSE);
-
-
- emitcode ("mov", "%s,_spx", r->name);
+ {
emitcode ("movx", "a,@%s", r->name);
emitcode ("mov", "psw,a");
emitcode ("dec", "%s", r->name);
-
}
else
+ {
emitcode ("pop", "psw");
+ }
}
- for (i = (ds390_nRegs - 1); i >= 0; i--)
+ for (i = 7; i >= 0; i--) /* only R7-R0 needs to be popped */
{
if (options.useXstack)
{
if (options.useXstack)
{
-
emitcode ("mov", "_spx,%s", r->name);
- freeAsmop (NULL, aop, ic, TRUE);
-
}
+
+ if (aop)
+ {
+ freeAsmop (NULL, aop, ic, TRUE);
+ }
}
/*-----------------------------------------------------------------*/
-/* saverbank - saves an entire register bank on the stack */
+/* saveRBank - saves an entire register bank on the stack */
/*-----------------------------------------------------------------*/
static void
-saverbank (int bank, iCode * ic, bool pushPsw)
+saveRBank (int bank, iCode * ic, bool pushPsw)
{
int i;
- asmop *aop;
+ asmop *aop = NULL;
regs *r = NULL;
if (options.useXstack)
{
-
- aop = newAsmop (0);
- r = getFreePtr (ic, &aop, FALSE);
- emitcode ("mov", "%s,_spx", r->name);
-
+ if (!ic)
+ {
+ /* Assume r0 is available for use. */
+ r = ds390_regWithIdx (R0_IDX);;
+ }
+ else
+ {
+ aop = newAsmop (0);
+ r = getFreePtr (ic, &aop, FALSE);
+ }
+ emitcode ("mov", "%s,_spx", r->name);
}
- for (i = 0; i < ds390_nRegs; i++)
+ for (i = 0; i < 8 ; i++) /* only R0-R7 needs saving */
{
if (options.useXstack)
{
emitcode ("movx", "@%s,a", r->name);
emitcode ("inc", "%s", r->name);
emitcode ("mov", "_spx,%s", r->name);
- freeAsmop (NULL, aop, ic, TRUE);
-
}
else
+ {
emitcode ("push", "psw");
+ }
+
+ emitcode ("mov", "psw,#!constbyte", (bank << 3) & 0x00ff);
+ }
+
+ if (aop)
+ {
+ freeAsmop (NULL, aop, ic, TRUE);
+ }
+
+ if (ic)
+ {
+ ic->bankSaved = 1;
+ }
+}
+
+/*-----------------------------------------------------------------*/
+/* genSend - gen code for SEND */
+/*-----------------------------------------------------------------*/
+static void genSend(set *sendSet)
+{
+ iCode *sic;
+ int sendCount = 0 ;
+ static int rb1_count = 0;
- emitcode ("mov", "psw,#0x%02x", (bank << 3) & 0x00ff);
+ for (sic = setFirstItem (sendSet); sic;
+ sic = setNextItem (sendSet)) {
+ int size, offset = 0;
+
+ size=getSize(operandType(IC_LEFT(sic)));
+ D (emitcode (";", "genSend argreg = %d, size = %d ",sic->argreg,size));
+ if (sendCount == 0) { /* first parameter */
+ // we know that dpl(hxb) is the result, so
+ rb1_count = 0 ;
+ _startLazyDPSEvaluation ();
+ if (size>1) {
+ aopOp (IC_LEFT (sic), sic, FALSE,
+ (AOP_IS_STR(IC_LEFT(sic)) ? FALSE : TRUE));
+ } else {
+ aopOp (IC_LEFT (sic), sic, FALSE, FALSE);
+ }
+ while (size--) {
+ char *l = aopGet (AOP (IC_LEFT (sic)), offset,
+ FALSE, FALSE, NULL);
+ if (strcmp (l, fReturn[offset])) {
+ emitcode ("mov", "%s,%s",
+ fReturn[offset],
+ l);
+ }
+ offset++;
+ }
+ _endLazyDPSEvaluation ();
+ freeAsmop (IC_LEFT (sic), NULL, sic, TRUE);
+ rb1_count =0;
+ } else { /* if more parameter in registers */
+ aopOp (IC_LEFT (sic), sic, FALSE, TRUE);
+ while (size--) {
+ emitcode ("mov","b1_%d,%s",rb1_count++,aopGet (AOP (IC_LEFT (sic)), offset++,
+ FALSE, FALSE, NULL));
+ }
+ freeAsmop (IC_LEFT (sic), NULL, sic, TRUE);
+ }
+ sendCount++;
}
- ic->bankSaved = 1;
+}
+static void
+adjustEsp(const char *reg)
+{
+ emitcode ("anl","%s,#3", reg);
+ if (TARGET_IS_DS400)
+ {
+ emitcode ("orl","%s,#!constbyte",
+ reg,
+ (options.stack_loc >> 8) & 0xff);
+ }
}
/*-----------------------------------------------------------------*/
static void
genCall (iCode * ic)
{
- sym_link *detype;
-
- D (emitcode (";", "genCall ");
- );
+ sym_link *dtype;
+ bool restoreBank = FALSE;
+ bool swapBanks = FALSE;
- /* if caller saves & we have not saved then */
- if (!ic->regsSaved)
- saveRegisters (ic);
+ D (emitcode (";", "genCall "););
- /* if we are calling a function that is not using
+ /* if we are calling a not _naked function that is not using
the same register bank then we need to save the
destination registers on the stack */
- detype = getSpec (operandType (IC_LEFT (ic)));
- if (detype &&
- (SPEC_BANK (currFunc->etype) != SPEC_BANK (detype)) &&
- IS_ISR (currFunc->etype) &&
- !ic->bankSaved)
-
- saverbank (SPEC_BANK (detype), ic, TRUE);
-
+ dtype = operandType (IC_LEFT (ic));
+ if (currFunc && dtype && (!IFFUNC_ISNAKED(dtype) || TARGET_IS_DS400) &&
+ (FUNC_REGBANK (currFunc->type) != FUNC_REGBANK (dtype)) &&
+ IFFUNC_ISISR (currFunc->type))
+ {
+ if (!ic->bankSaved)
+ {
+ /* This is unexpected; the bank should have been saved in
+ * genFunction.
+ */
+ saveRBank (FUNC_REGBANK (dtype), ic, FALSE);
+ restoreBank = TRUE;
+ }
+ swapBanks = TRUE;
+ }
+
+ /* if caller saves & we have not saved then */
+ if (!ic->regsSaved)
+ saveRegisters (ic);
+
/* if send set is not empty the assign */
+ /* We've saved all the registers we care about;
+ * therefore, we may clobber any register not used
+ * in the calling convention (i.e. anything not in
+ * fReturn.
+ */
if (_G.sendSet)
{
- iCode *sic;
-
- for (sic = setFirstItem (_G.sendSet); sic;
- sic = setNextItem (_G.sendSet))
- {
- int size, offset = 0;
-
- aopOp (IC_LEFT (sic), sic, FALSE, TRUE);
- size = AOP_SIZE (IC_LEFT (sic));
-
- _startLazyDPSEvaluation ();
- while (size--)
- {
- char *l = aopGet (AOP (IC_LEFT (sic)), offset,
- FALSE, FALSE, TRUE);
- if (strcmp (l, fReturn[offset])) {
- genSetDPTR(0);
- _flushLazyDPS();
- emitcode ("mov", "%s,%s ;jwk lazy genCall",
- fReturn[offset],
- l);
- }
- offset++;
- }
- _endLazyDPSEvaluation ();
- freeAsmop (IC_LEFT (sic), NULL, sic, TRUE);
+ if (IFFUNC_ISREENT(dtype)) { /* need to reverse the send set */
+ genSend(reverseSet(_G.sendSet));
+ } else {
+ genSend(_G.sendSet);
}
_G.sendSet = NULL;
- }
+ }
+
+ if (swapBanks)
+ {
+ emitcode ("mov", "psw,#!constbyte",
+ ((FUNC_REGBANK(dtype)) << 3) & 0xff);
+ }
+
/* make the call */
emitcode ("lcall", "%s", (OP_SYMBOL (IC_LEFT (ic))->rname[0] ?
OP_SYMBOL (IC_LEFT (ic))->rname :
OP_SYMBOL (IC_LEFT (ic))->name));
+ if (swapBanks)
+ {
+ emitcode ("mov", "psw,#!constbyte",
+ ((FUNC_REGBANK(currFunc->type)) << 3) & 0xff);
+ }
+
/* if we need assign a result value */
if ((IS_ITEMP (IC_RESULT (ic)) &&
(OP_SYMBOL (IC_RESULT (ic))->nRegs ||
+ OP_SYMBOL (IC_RESULT (ic))->accuse ||
OP_SYMBOL (IC_RESULT (ic))->spildir)) ||
IS_TRUE_SYMOP (IC_RESULT (ic)))
{
int size = getSize (operandType (IC_RESULT (ic)));
/* Special case for 1 or 2 byte return in far space. */
- emitcode (";", "Kevin function call abuse #1");
-
MOVA (fReturn[0]);
if (size > 1)
{
emitcode ("mov", "b,%s", fReturn[1]);
+ _G.bInUse++;
}
+ _G.accInUse++;
aopOp (IC_RESULT (ic), ic, FALSE, FALSE);
+ _G.accInUse--;
+
+ if (size > 1)
+ _G.bInUse--;
+
aopPut (AOP (IC_RESULT (ic)), "a", 0);
if (size > 1)
}
else
{
- _G.accInUse++;
+ _G.bInUse++;
aopOp (IC_RESULT (ic), ic, FALSE, TRUE);
- _G.accInUse--;
+ _G.bInUse--;
assignResultValue (IC_RESULT (ic));
/* adjust the stack for parameters if
required */
- if (ic->parmBytes)
- {
+ if (ic->parmBytes) {
int i;
- if (ic->parmBytes > 3)
- {
- emitcode ("mov", "a,%s", spname);
- emitcode ("add", "a,#0x%02x", (-ic->parmBytes) & 0xff);
- emitcode ("mov", "%s,a", spname);
- }
- else
- for (i = 0; i < ic->parmBytes; i++)
- emitcode ("dec", "%s", spname);
-
- }
-
- /* if register bank was saved then pop them */
- if (ic->bankSaved)
- unsaverbank (SPEC_BANK (detype), ic, TRUE);
+ if (options.stack10bit) {
+ if (ic->parmBytes <= 10) {
+ emitcode(";","stack adjustment for parms");
+ for (i=0; i < ic->parmBytes ; i++) {
+ emitcode("pop","acc");
+ }
+ } else {
+ PROTECT_SP;
+ emitcode ("clr","c");
+ emitcode ("mov","a,sp");
+ emitcode ("subb","a,#!constbyte",ic->parmBytes & 0xff);
+ emitcode ("mov","sp,a");
+ emitcode ("mov","a,esp");
+ adjustEsp("a");
+ emitcode ("subb","a,#!constbyte",(ic->parmBytes >> 8) & 0xff);
+ emitcode ("mov","esp,a");
+ UNPROTECT_SP;
+ }
+ } else {
+ if (ic->parmBytes > 3) {
+ emitcode ("mov", "a,%s", spname);
+ emitcode ("add", "a,#!constbyte", (-ic->parmBytes) & 0xff);
+ emitcode ("mov", "%s,a", spname);
+ } else
+ for (i = 0; i < ic->parmBytes; i++)
+ emitcode ("dec", "%s", spname);
+ }
+ }
/* if we hade saved some registers then unsave them */
- if (ic->regsSaved && !(OP_SYMBOL (IC_LEFT (ic))->calleeSave))
+ if (ic->regsSaved)
unsaveRegisters (ic);
-
+ /* if register bank was saved then pop them */
+ if (restoreBank)
+ unsaveRBank (FUNC_REGBANK (dtype), ic, FALSE);
}
/*-----------------------------------------------------------------*/
static void
genPcall (iCode * ic)
{
- sym_link *detype;
+ sym_link *dtype;
symbol *rlbl = newiTempLabel (NULL);
+ bool restoreBank=FALSE;
D (emitcode (";", "genPcall ");
);
/* if we are calling a function that is not using
the same register bank then we need to save the
destination registers on the stack */
- detype = getSpec (operandType (IC_LEFT (ic)));
- if (detype &&
- IS_ISR (currFunc->etype) &&
- (SPEC_BANK (currFunc->etype) != SPEC_BANK (detype)))
- saverbank (SPEC_BANK (detype), ic, TRUE);
-
+ dtype = operandType (IC_LEFT (ic));
+ if (currFunc && dtype && (!IFFUNC_ISNAKED(dtype) || TARGET_IS_DS400) &&
+ IFFUNC_ISISR (currFunc->type) &&
+ (FUNC_REGBANK (currFunc->type) != FUNC_REGBANK (dtype))) {
+ saveRBank (FUNC_REGBANK (dtype), ic, TRUE);
+ restoreBank=TRUE;
+ }
/* push the return address on to the stack */
- emitcode ("mov", "a,#%05d$", (rlbl->key + 100));
+ emitcode ("mov", "a,#!tlabel", (rlbl->key + 100));
emitcode ("push", "acc");
- emitcode ("mov", "a,#(%05d$ >> 8)", (rlbl->key + 100));
+ emitcode ("mov", "a,#!hil", (rlbl->key + 100));
emitcode ("push", "acc");
if (options.model == MODEL_FLAT24)
{
- emitcode ("mov", "a,#(%05d$ >> 16)", (rlbl->key + 100));
+ emitcode ("mov", "a,#!hihil", (rlbl->key + 100));
emitcode ("push", "acc");
}
/* if send set is not empty the assign */
if (_G.sendSet)
{
- iCode *sic;
+ genSend(reverseSet(_G.sendSet));
+ _G.sendSet = NULL;
+ }
- for (sic = setFirstItem (_G.sendSet); sic;
- sic = setNextItem (_G.sendSet))
- {
- int size, offset = 0;
-
- aopOp (IC_LEFT (sic), sic, FALSE, FALSE);
- size = AOP_SIZE (IC_LEFT (sic));
- _startLazyDPSEvaluation ();
- while (size--)
- {
- char *l = aopGet (AOP (IC_LEFT (sic)), offset,
- FALSE, FALSE, TRUE);
- if (strcmp (l, fReturn[offset]))
- {
- emitcode ("mov", "%s,%s",
- fReturn[offset],
- l);
- }
- offset++;
- }
- _endLazyDPSEvaluation ();
- freeAsmop (IC_LEFT (sic), NULL, sic, TRUE);
- }
- _G.sendSet = NULL;
- }
-
- emitcode ("ret", "");
- emitcode ("", "%05d$:", (rlbl->key + 100));
+ emitcode ("ret", "");
+ emitcode ("", "!tlabeldef", (rlbl->key + 100));
/* if we need assign a result value */
if (ic->parmBytes)
{
int i;
- if (ic->parmBytes > 3)
- {
- emitcode ("mov", "a,%s", spname);
- emitcode ("add", "a,#0x%02x", (-ic->parmBytes) & 0xff);
- emitcode ("mov", "%s,a", spname);
- }
- else
- for (i = 0; i < ic->parmBytes; i++)
- emitcode ("dec", "%s", spname);
-
+ if (options.stack10bit) {
+ if (ic->parmBytes <= 10) {
+ emitcode(";","stack adjustment for parms");
+ for (i=0; i < ic->parmBytes ; i++) {
+ emitcode("pop","acc");
+ }
+ } else {
+ PROTECT_SP;
+ emitcode ("clr","c");
+ emitcode ("mov","a,sp");
+ emitcode ("subb","a,#!constbyte",ic->parmBytes & 0xff);
+ emitcode ("mov","sp,a");
+ emitcode ("mov","a,esp");
+ adjustEsp("a");
+ emitcode ("subb","a,#!constbyte",(ic->parmBytes >> 8) & 0xff);
+ emitcode ("mov","esp,a");
+ UNPROTECT_SP;
+ }
+ } else {
+ if (ic->parmBytes > 3) {
+ emitcode ("mov", "a,%s", spname);
+ emitcode ("add", "a,#!constbyte", (-ic->parmBytes) & 0xff);
+ emitcode ("mov", "%s,a", spname);
+ }
+ else
+ for (i = 0; i < ic->parmBytes; i++)
+ emitcode ("dec", "%s", spname);
+
+ }
}
-
/* if register bank was saved then unsave them */
- if (detype &&
- (SPEC_BANK (currFunc->etype) !=
- SPEC_BANK (detype)))
- unsaverbank (SPEC_BANK (detype), ic, TRUE);
-
+ if (restoreBank)
+ unsaveRBank (FUNC_REGBANK (dtype), ic, TRUE);
+
/* if we hade saved some registers then
unsave them */
if (ic->regsSaved)
/*-----------------------------------------------------------------*/
/* inExcludeList - return 1 if the string is in exclude Reg list */
/*-----------------------------------------------------------------*/
+static int
+regsCmp(void *p1, void *p2)
+{
+ return (STRCASECMP((char *)p1, (char *)(p2)) == 0);
+}
+
static bool
inExcludeList (char *s)
{
- int i = 0;
+ const char *p = setFirstItem(options.excludeRegsSet);
- if (options.excludeRegs[i] &&
- STRCASECMP (options.excludeRegs[i], "none") == 0)
+ if (p == NULL || STRCASECMP(p, "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;
+
+ return isinSetWith(options.excludeRegsSet, s, regsCmp);
}
/*-----------------------------------------------------------------*/
genFunction (iCode * ic)
{
symbol *sym;
- sym_link *fetype;
+ sym_link *ftype;
+ bool switchedPSW = FALSE;
- D (emitcode (";", "genFunction ");
- );
+ D (emitcode (";", "genFunction "););
_G.nRegsSaved = 0;
/* create the function header */
emitcode (";", "-----------------------------------------");
emitcode ("", "%s:", sym->rname);
- fetype = getSpec (operandType (IC_LEFT (ic)));
+ ftype = operandType (IC_LEFT (ic));
- /* if critical function then turn interrupts off */
- if (SPEC_CRTCL (fetype))
- emitcode ("clr", "ea");
+ if (IFFUNC_ISNAKED(ftype))
+ {
+ emitcode(";", "naked function: no prologue.");
+ return;
+ }
+
+ if (options.stack_probe)
+ emitcode ("lcall","__stack_probe");
/* here we need to generate the equates for the
register bank if required */
- if (SPEC_BANK (fetype) != rbank)
+ if (FUNC_REGBANK (ftype) != rbank)
{
int i;
- rbank = SPEC_BANK (fetype);
+ rbank = FUNC_REGBANK (ftype);
for (i = 0; i < ds390_nRegs; i++)
{
- if (strcmp (regs390[i].base, "0") == 0)
- emitcode ("", "%s = 0x%02x",
- regs390[i].dname,
- 8 * rbank + regs390[i].offset);
- else
- emitcode ("", "%s = %s + 0x%02x",
- regs390[i].dname,
- regs390[i].base,
- 8 * rbank + regs390[i].offset);
+ if (regs390[i].print) {
+ if (strcmp (regs390[i].base, "0") == 0)
+ emitcode ("", "%s !equ !constbyte",
+ regs390[i].dname,
+ 8 * rbank + regs390[i].offset);
+ else
+ emitcode ("", "%s !equ %s + !constbyte",
+ regs390[i].dname,
+ regs390[i].base,
+ 8 * rbank + regs390[i].offset);
+ }
}
}
/* if this is an interrupt service routine then
save acc, b, dpl, dph */
- if (IS_ISR (sym->etype))
- {
-
+ if (IFFUNC_ISISR (sym->type))
+ { /* is ISR */
if (!inExcludeList ("acc"))
emitcode ("push", "acc");
if (!inExcludeList ("b"))
emitcode ("push", "dpx");
/* Make sure we're using standard DPTR */
emitcode ("push", "dps");
- emitcode ("mov", "dps, #0x00");
+ emitcode ("mov", "dps,#0");
if (options.stack10bit)
{
/* This ISR could conceivably use DPTR2. Better save it. */
emitcode ("push", "dpl1");
emitcode ("push", "dph1");
emitcode ("push", "dpx1");
- emitcode ("push", "ap");
+ emitcode ("push", DP2_RESULT_REG);
}
}
/* if this isr has no bank i.e. is going to
run with bank 0 , then we need to save more
registers :-) */
- if (!SPEC_BANK (sym->etype))
+ if (!FUNC_REGBANK (sym->type))
{
+ int i;
/* if this function does not call any other
function then we can be economical and
save only those registers that are used */
- if (!sym->hasFcall)
+ if (!IFFUNC_HASFCALL(sym->type))
{
- int i;
/* if any registers used */
if (sym->regsUsed)
/* save the registers used */
for (i = 0; i < sym->regsUsed->size; i++)
{
- if (bitVectBitValue (sym->regsUsed, i) ||
- (ds390_ptrRegReq && (i == R0_IDX || i == R1_IDX)))
+ if (bitVectBitValue (sym->regsUsed, i))
emitcode ("push", "%s", ds390_regWithIdx (i)->dname);
}
}
-
}
else
{
/* this function has a function call cannot
- determines register usage so we will have the
+ determines register usage so we will have to push the
entire bank */
- saverbank (0, ic, FALSE);
+ saveRBank (0, ic, FALSE);
+ if (options.parms_in_bank1) {
+ for (i=0; i < 8 ; i++ ) {
+ emitcode ("push","%s",rb1regs[i]);
+ }
+ }
+ }
+ }
+ else
+ {
+ /* This ISR uses a non-zero bank.
+ *
+ * We assume that the bank is available for our
+ * exclusive use.
+ *
+ * However, if this ISR calls a function which uses some
+ * other bank, we must save that bank entirely.
+ */
+ unsigned long banksToSave = 0;
+
+ if (IFFUNC_HASFCALL(sym->type))
+ {
+
+#define MAX_REGISTER_BANKS 4
+
+ iCode *i;
+ int ix;
+
+ for (i = ic; i; i = i->next)
+ {
+ if (i->op == ENDFUNCTION)
+ {
+ /* we got to the end OK. */
+ break;
+ }
+
+ if (i->op == CALL)
+ {
+ sym_link *dtype;
+
+ dtype = operandType (IC_LEFT(i));
+ if (dtype
+ && FUNC_REGBANK(dtype) != FUNC_REGBANK(sym->type))
+ {
+ /* Mark this bank for saving. */
+ if (FUNC_REGBANK(dtype) >= MAX_REGISTER_BANKS)
+ {
+ werror(E_NO_SUCH_BANK, FUNC_REGBANK(dtype));
+ }
+ else
+ {
+ banksToSave |= (1 << FUNC_REGBANK(dtype));
+ }
+
+ /* And note that we don't need to do it in
+ * genCall.
+ */
+ i->bankSaved = 1;
+ }
+ }
+ if (i->op == PCALL)
+ {
+ /* This is a mess; we have no idea what
+ * register bank the called function might
+ * use.
+ *
+ * The only thing I can think of to do is
+ * throw a warning and hope.
+ */
+ werror(W_FUNCPTR_IN_USING_ISR);
+ }
+ }
+
+ if (banksToSave && options.useXstack)
+ {
+ /* Since we aren't passing it an ic,
+ * saveRBank will assume r0 is available to abuse.
+ *
+ * So switch to our (trashable) bank now, so
+ * the caller's R0 isn't trashed.
+ */
+ emitcode ("push", "psw");
+ emitcode ("mov", "psw,#!constbyte",
+ (FUNC_REGBANK (sym->type) << 3) & 0x00ff);
+ switchedPSW = TRUE;
+ }
+
+ for (ix = 0; ix < MAX_REGISTER_BANKS; ix++)
+ {
+ if (banksToSave & (1 << ix))
+ {
+ saveRBank(ix, NULL, FALSE);
+ }
+ }
}
+ // TODO: this needs a closer look
+ SPEC_ISR_SAVED_BANKS(currFunc->etype) = banksToSave;
}
}
else
{
/* if callee-save to be used for this function
then save the registers being used in this function */
- if (sym->calleeSave)
+ if (IFFUNC_CALLEESAVES(sym->type))
{
int i;
/* save the registers used */
for (i = 0; i < sym->regsUsed->size; i++)
{
- if (bitVectBitValue (sym->regsUsed, i) ||
- (ds390_ptrRegReq && (i == R0_IDX || i == R1_IDX)))
+ if (bitVectBitValue (sym->regsUsed, i))
{
emitcode ("push", "%s", ds390_regWithIdx (i)->dname);
_G.nRegsSaved++;
}
/* set the register bank to the desired value */
- if (SPEC_BANK (sym->etype) || IS_ISR (sym->etype))
+ if ((FUNC_REGBANK (sym->type) || FUNC_ISISR (sym->type))
+ && !switchedPSW)
{
emitcode ("push", "psw");
- emitcode ("mov", "psw,#0x%02x", (SPEC_BANK (sym->etype) << 3) & 0x00ff);
- }
-
- if (IS_RENT (sym->etype) || options.stackAuto)
- {
-
- if (options.useXstack)
- {
- emitcode ("mov", "r0,%s", spname);
- emitcode ("mov", "a,_bp");
- emitcode ("movx", "@r0,a");
- emitcode ("inc", "%s", spname);
- }
- else
- {
- /* set up the stack */
- emitcode ("push", "_bp"); /* save the callers stack */
- }
- emitcode ("mov", "_bp,%s", spname);
- }
+ emitcode ("mov", "psw,#!constbyte", (FUNC_REGBANK (sym->type) << 3) & 0x00ff);
+ }
+
+ if ( (IFFUNC_ISREENT (sym->type) || options.stackAuto) &&
+ (sym->stack || FUNC_HASSTACKPARM(sym->type))) {
+ if (options.stack10bit) {
+ emitcode ("push","_bpx");
+ emitcode ("push","_bpx+1");
+ emitcode ("mov","_bpx,%s",spname);
+ emitcode ("mov","_bpx+1,esp");
+ adjustEsp("_bpx+1");
+ } else {
+ if (options.useXstack) {
+ emitcode ("mov", "r0,%s", spname);
+ emitcode ("mov", "a,_bp");
+ emitcode ("movx", "@r0,a");
+ emitcode ("inc", "%s", spname);
+ } else {
+ /* set up the stack */
+ emitcode ("push", "_bp"); /* save the callers stack */
+ }
+ emitcode ("mov", "_bp,%s", spname);
+ }
+ }
/* adjust the stack for the function */
- if (sym->stack)
- {
-
+ if (sym->stack) {
int i = sym->stack;
- if (i > 256)
- werror (W_STACK_OVERFLOW, sym->name);
-
- if (i > 3 && sym->recvSize < 4)
- {
-
- emitcode ("mov", "a,sp");
- emitcode ("add", "a,#0x%02x", ((char) sym->stack & 0xff));
- emitcode ("mov", "sp,a");
-
- }
- else
- while (i--)
- emitcode ("inc", "sp");
- }
+ if (options.stack10bit) {
+ if ( i > 1024) werror (W_STACK_OVERFLOW, sym->name);
+ assert (sym->recvSize <= 4);
+ if (sym->stack <= 8) {
+ while (i--) emitcode ("push","acc");
+ } else {
+ PROTECT_SP;
+ emitcode ("mov","a,sp");
+ emitcode ("add","a,#!constbyte", ((short) sym->stack & 0xff));
+ emitcode ("mov","sp,a");
+ emitcode ("mov","a,esp");
+ adjustEsp("a");
+ emitcode ("addc","a,#!constbyte", (((short) sym->stack) >> 8) & 0xff);
+ emitcode ("mov","esp,a");
+ UNPROTECT_SP;
+ }
+ } else {
+ if (i > 256)
+ werror (W_STACK_OVERFLOW, sym->name);
+
+ if (i > 3 && sym->recvSize < 4) {
+
+ emitcode ("mov", "a,sp");
+ emitcode ("add", "a,#!constbyte", ((char) sym->stack & 0xff));
+ emitcode ("mov", "sp,a");
+
+ } else
+ while (i--)
+ emitcode ("inc", "sp");
+ }
+ }
if (sym->xstack)
{
emitcode ("mov", "a,_spx");
- emitcode ("add", "a,#0x%02x", ((char) sym->xstack & 0xff));
+ emitcode ("add", "a,#!constbyte", ((char) sym->xstack & 0xff));
emitcode ("mov", "_spx,a");
}
+
+ /* if critical function then turn interrupts off */
+ if (IFFUNC_ISCRITICAL (ftype))
+ {
+ symbol *tlbl = newiTempLabel (NULL);
+ emitcode ("setb", "c");
+ emitcode ("jbc", "ea,%05d$", (tlbl->key + 100)); /* atomic test & clear */
+ emitcode ("clr", "c");
+ emitcode ("", "%05d$:", (tlbl->key + 100));
+ emitcode ("push", "psw"); /* save old ea via c in psw */
+ }
}
genEndFunction (iCode * ic)
{
symbol *sym = OP_SYMBOL (IC_LEFT (ic));
+ lineNode *lnp = lineCurr;
+ bitVect *regsUsed;
+ bitVect *regsUsedPrologue;
+ bitVect *regsUnneeded;
+ int idx;
- D (emitcode (";", "genEndFunction ");
- );
+ D (emitcode (";", "genEndFunction "););
+
+ if (IFFUNC_ISNAKED(sym->type))
+ {
+ emitcode(";", "naked function: no epilogue.");
+ if (options.debug && currFunc)
+ debugFile->writeEndFunction (currFunc, ic, 0);
+ return;
+ }
- if (IS_RENT (sym->etype) || options.stackAuto)
+ if (IFFUNC_ISCRITICAL (sym->type))
{
- emitcode ("mov", "%s,_bp", spname);
+ emitcode ("pop", "psw"); /* restore ea via c in psw */
+ emitcode ("mov", "ea,c");
}
+
+ if ((IFFUNC_ISREENT (sym->type) || options.stackAuto) &&
+ (sym->stack || FUNC_HASSTACKPARM(sym->type))) {
+
+ if (options.stack10bit) {
+ PROTECT_SP;
+ emitcode ("mov", "sp,_bpx", spname);
+ emitcode ("mov", "esp,_bpx+1", spname);
+ UNPROTECT_SP;
+ } else {
+ emitcode ("mov", "%s,_bp", spname);
+ }
+ }
/* if use external stack but some variables were
added to the local stack then decrement the
local stack */
- if (options.useXstack && sym->stack)
- {
+ if (options.useXstack && sym->stack) {
emitcode ("mov", "a,sp");
- emitcode ("add", "a,#0x%02x", ((char) -sym->stack) & 0xff);
+ emitcode ("add", "a,#!constbyte", ((char) -sym->stack) & 0xff);
emitcode ("mov", "sp,a");
- }
+ }
- if ((IS_RENT (sym->etype) || options.stackAuto))
- {
- if (options.useXstack)
- {
+ if ((IFFUNC_ISREENT (sym->type) || options.stackAuto) &&
+ (sym->stack || FUNC_HASSTACKPARM(sym->type))) {
+
+ if (options.useXstack) {
emitcode ("mov", "r0,%s", spname);
emitcode ("movx", "a,@r0");
emitcode ("mov", "_bp,a");
emitcode ("dec", "%s", spname);
- }
- else
- {
- emitcode ("pop", "_bp");
- }
- }
+ } else {
+ if (options.stack10bit) {
+ emitcode ("pop", "_bpx+1");
+ emitcode ("pop", "_bpx");
+ } else {
+ emitcode ("pop", "_bp");
+ }
+ }
+ }
/* restore the register bank */
- if (SPEC_BANK (sym->etype) || IS_ISR (sym->etype))
- emitcode ("pop", "psw");
-
- if (IS_ISR (sym->etype))
+ if (FUNC_REGBANK (sym->type) || IFFUNC_ISISR (sym->type))
+ {
+ if (!FUNC_REGBANK (sym->type) || !IFFUNC_ISISR (sym->type)
+ || !options.useXstack)
{
+ /* Special case of ISR using non-zero bank with useXstack
+ * is handled below.
+ */
+ emitcode ("pop", "psw");
+ }
+ }
+
+ if (IFFUNC_ISISR (sym->type))
+ { /* is ISR */
/* now we need to restore the registers */
/* if this isr has no bank i.e. is going to
run with bank 0 , then we need to save more
registers :-) */
- if (!SPEC_BANK (sym->etype))
+ if (!FUNC_REGBANK (sym->type))
{
-
+ int i;
/* if this function does not call any other
function then we can be economical and
save only those registers that are used */
- if (!sym->hasFcall)
+ if (!IFFUNC_HASFCALL(sym->type))
{
- int i;
/* if any registers used */
if (sym->regsUsed)
/* save the registers used */
for (i = sym->regsUsed->size; i >= 0; i--)
{
- if (bitVectBitValue (sym->regsUsed, i) ||
- (ds390_ptrRegReq && (i == R0_IDX || i == R1_IDX)))
+ if (bitVectBitValue (sym->regsUsed, i))
emitcode ("pop", "%s", ds390_regWithIdx (i)->dname);
}
}
-
}
else
{
/* this function has a function call cannot
- determines register usage so we will have the
+ determines register usage so we will have to pop the
entire bank */
- unsaverbank (0, ic, FALSE);
+ if (options.parms_in_bank1) {
+ for (i = 7 ; i >= 0 ; i-- ) {
+ emitcode ("pop","%s",rb1regs[i]);
+ }
+ }
+ unsaveRBank (0, ic, FALSE);
+ }
+ }
+ else
+ {
+ /* This ISR uses a non-zero bank.
+ *
+ * Restore any register banks saved by genFunction
+ * in reverse order.
+ */
+ unsigned savedBanks = SPEC_ISR_SAVED_BANKS(currFunc->etype);
+ int ix;
+
+ for (ix = MAX_REGISTER_BANKS - 1; ix >= 0; ix--)
+ {
+ if (savedBanks & (1 << ix))
+ {
+ unsaveRBank(ix, NULL, FALSE);
+ }
+ }
+
+ if (options.useXstack)
+ {
+ /* Restore bank AFTER calling unsaveRBank,
+ * since it can trash r0.
+ */
+ emitcode ("pop", "psw");
}
}
{
if (options.stack10bit)
{
- emitcode ("pop", "ap");
+ emitcode ("pop", DP2_RESULT_REG);
emitcode ("pop", "dpx1");
emitcode ("pop", "dph1");
emitcode ("pop", "dpl1");
if (!inExcludeList ("acc"))
emitcode ("pop", "acc");
- if (SPEC_CRTCL (sym->etype))
- emitcode ("setb", "ea");
-
/* if debug then send end of function */
-/* if (options.debug && currFunc) { */
- if (currFunc)
- {
- _G.debugLine = 1;
- emitcode ("", "C$%s$%d$%d$%d ==.",
- FileBaseName (ic->filename), currFunc->lastLine,
- ic->level, ic->block);
- if (IS_STATIC (currFunc->etype))
- emitcode ("", "XF%s$%s$0$0 ==.", moduleName, currFunc->name);
- else
- emitcode ("", "XG$%s$0$0 ==.", currFunc->name);
- _G.debugLine = 0;
+ if (options.debug && currFunc) {
+ debugFile->writeEndFunction (currFunc, ic, 1);
}
emitcode ("reti", "");
}
else
{
- if (SPEC_CRTCL (sym->etype))
- emitcode ("setb", "ea");
-
- if (sym->calleeSave)
+ if (IFFUNC_CALLEESAVES(sym->type))
{
int i;
/* save the registers used */
for (i = sym->regsUsed->size; i >= 0; i--)
{
- if (bitVectBitValue (sym->regsUsed, i) ||
- (ds390_ptrRegReq && (i == R0_IDX || i == R1_IDX)))
+ if (bitVectBitValue (sym->regsUsed, i))
emitcode ("pop", "%s", ds390_regWithIdx (i)->dname);
}
}
-
}
/* if debug then send end of function */
- if (currFunc)
- {
- _G.debugLine = 1;
- emitcode ("", "C$%s$%d$%d$%d ==.",
- FileBaseName (ic->filename), currFunc->lastLine,
- ic->level, ic->block);
- if (IS_STATIC (currFunc->etype))
- emitcode ("", "XF%s$%s$0$0 ==.", moduleName, currFunc->name);
- else
- emitcode ("", "XG$%s$0$0 ==.", currFunc->name);
- _G.debugLine = 0;
+ if (options.debug && currFunc)
+ {
+ debugFile->writeEndFunction (currFunc, ic, 1);
}
emitcode ("ret", "");
}
+ if (!port->peep.getRegsRead || !port->peep.getRegsWritten)
+ return;
+
+ /* If this was an interrupt handler using bank 0 that called another */
+ /* function, then all registers must be saved; nothing to optimized. */
+ if (IFFUNC_ISISR (sym->type) && IFFUNC_HASFCALL(sym->type)
+ && !FUNC_REGBANK(sym->type))
+ return;
+
+ /* There are no push/pops to optimize if not callee-saves or ISR */
+ if (!(FUNC_CALLEESAVES (sym->type) || FUNC_ISISR (sym->type)))
+ return;
+
+ /* If there were stack parameters, we cannot optimize without also */
+ /* fixing all of the stack offsets; this is too dificult to consider. */
+ if (FUNC_HASSTACKPARM(sym->type))
+ return;
+
+ /* Compute the registers actually used */
+ regsUsed = newBitVect (ds390_nRegs);
+ regsUsedPrologue = newBitVect (ds390_nRegs);
+ while (lnp)
+ {
+ if (lnp->ic && lnp->ic->op == FUNCTION)
+ regsUsedPrologue = bitVectUnion (regsUsedPrologue, port->peep.getRegsWritten(lnp));
+ else
+ regsUsed = bitVectUnion (regsUsed, port->peep.getRegsWritten(lnp));
+
+ if (lnp->ic && lnp->ic->op == FUNCTION && lnp->prev
+ && lnp->prev->ic && lnp->prev->ic->op == ENDFUNCTION)
+ break;
+ if (!lnp->prev)
+ break;
+ lnp = lnp->prev;
+ }
+
+ if (bitVectBitValue (regsUsedPrologue, DPS_IDX)
+ && !bitVectBitValue (regsUsed, DPS_IDX))
+ {
+ bitVectUnSetBit (regsUsedPrologue, DPS_IDX);
+ }
+
+ if (bitVectBitValue (regsUsedPrologue, CND_IDX)
+ && !bitVectBitValue (regsUsed, CND_IDX))
+ {
+ regsUsed = bitVectUnion (regsUsed, regsUsedPrologue);
+ if (IFFUNC_ISISR (sym->type) && !FUNC_REGBANK(sym->type)
+ && !sym->stack)
+ bitVectUnSetBit (regsUsed, CND_IDX);
+ }
+ else
+ regsUsed = bitVectUnion (regsUsed, regsUsedPrologue);
+
+ /* If this was an interrupt handler that called another function */
+ /* function, then assume working registers may be modified by it. */
+ if (IFFUNC_ISISR (sym->type) && IFFUNC_HASFCALL(sym->type))
+ {
+ regsUsed = bitVectSetBit (regsUsed, AP_IDX);
+ regsUsed = bitVectSetBit (regsUsed, DPX1_IDX);
+ regsUsed = bitVectSetBit (regsUsed, DPL1_IDX);
+ regsUsed = bitVectSetBit (regsUsed, DPH1_IDX);
+ regsUsed = bitVectSetBit (regsUsed, DPX_IDX);
+ regsUsed = bitVectSetBit (regsUsed, DPL_IDX);
+ regsUsed = bitVectSetBit (regsUsed, DPH_IDX);
+ regsUsed = bitVectSetBit (regsUsed, DPS_IDX);
+ regsUsed = bitVectSetBit (regsUsed, B_IDX);
+ regsUsed = bitVectSetBit (regsUsed, A_IDX);
+ regsUsed = bitVectSetBit (regsUsed, CND_IDX);
+ }
+
+ /* Remove the unneeded push/pops */
+ regsUnneeded = newBitVect (ds390_nRegs);
+ while (lnp)
+ {
+ if (lnp->ic && (lnp->ic->op == FUNCTION || lnp->ic->op == ENDFUNCTION))
+ {
+ if (!strncmp(lnp->line, "push", 4))
+ {
+ idx = bitVectFirstBit (port->peep.getRegsRead(lnp));
+ if (idx>=0 && !bitVectBitValue (regsUsed, idx))
+ {
+ connectLine (lnp->prev, lnp->next);
+ regsUnneeded = bitVectSetBit (regsUnneeded, idx);
+ }
+ }
+ if (!strncmp(lnp->line, "pop", 3) || !strncmp(lnp->line, "mov", 3))
+ {
+ idx = bitVectFirstBit (port->peep.getRegsWritten(lnp));
+ if (idx>=0 && !bitVectBitValue (regsUsed, idx))
+ {
+ connectLine (lnp->prev, lnp->next);
+ regsUnneeded = bitVectSetBit (regsUnneeded, idx);
+ }
+ }
+ }
+ lnp = lnp->next;
+ }
+
+ for (idx = 0; idx < regsUnneeded->size; idx++)
+ if (bitVectBitValue (regsUnneeded, idx))
+ emitcode ("", ";\teliminated unneeded push/pop %s", ds390_regWithIdx (idx)->dname);
+
+ freeBitVect (regsUnneeded);
+ freeBitVect (regsUsed);
+ freeBitVect (regsUsedPrologue);
+}
+
+/*-----------------------------------------------------------------*/
+/* genJavaNativeRet - generate code for return JavaNative */
+/*-----------------------------------------------------------------*/
+static void genJavaNativeRet(iCode *ic)
+{
+ int i, size;
+
+ aopOp (IC_LEFT (ic), ic, FALSE,
+ AOP_IS_STR(IC_LEFT(ic)) ? FALSE :TRUE);
+ size = AOP_SIZE (IC_LEFT (ic));
+
+ assert (size <= 4);
+
+ /* it is assigned to GPR0-R3 then push them */
+ if (aopHasRegs(AOP(IC_LEFT(ic)),R0_IDX,R1_IDX) ||
+ aopHasRegs(AOP(IC_LEFT(ic)),R2_IDX,R3_IDX)) {
+ for (i = 0 ; i < size ; i++ ) {
+ emitcode ("push","%s",
+ aopGet(AOP(IC_LEFT(ic)),i,FALSE,TRUE,DP2_RESULT_REG));
+ }
+ for (i = (size-1) ; i >= 0 ; i--) {
+ emitcode ("pop","a%s",javaRet[i]);
+ }
+ } else {
+ for (i = 0 ; i < size ; i++)
+ emitcode ("mov","%s,%s",javaRet[i],
+ aopGet(AOP(IC_LEFT(ic)),i,FALSE,TRUE,DP2_RESULT_REG));
+ }
+ for (i = size ; i < 4 ; i++ )
+ emitcode ("mov","%s,#0",javaRet[i]);
+ return;
}
/*-----------------------------------------------------------------*/
{
int size, offset = 0, pushed = 0;
- D (emitcode (";", "genRet ");
- );
+ D (emitcode (";", "genRet "););
/* if we have no return value then
just generate the "ret" */
if (!IC_LEFT (ic))
goto jumpret;
+ /* if this is a JavaNative function then return
+ value in different register */
+ if (IFFUNC_ISJAVANATIVE(currFunc->type)) {
+ genJavaNativeRet(ic);
+ goto jumpret;
+ }
/* we have something to return then
move the return value into place */
- aopOp (IC_LEFT (ic), ic, FALSE, TRUE);
+ aopOp (IC_LEFT (ic), ic, FALSE,
+ (AOP_IS_STR(IC_LEFT(ic)) ? FALSE :TRUE));
size = AOP_SIZE (IC_LEFT (ic));
_startLazyDPSEvaluation ();
if (AOP_TYPE (IC_LEFT (ic)) == AOP_DPTR)
{
l = aopGet (AOP (IC_LEFT (ic)), offset++,
- FALSE, TRUE, FALSE);
+ FALSE, TRUE, NULL);
emitcode ("push", "%s", l);
pushed++;
}
else
{
+ /* Since A is the last element of fReturn,
+ * is is OK to clobber it in the aopGet.
+ */
l = aopGet (AOP (IC_LEFT (ic)), offset,
- FALSE, FALSE, FALSE);
+ FALSE, FALSE, NULL);
if (strcmp (fReturn[offset], l))
emitcode ("mov", "%s,%s", fReturn[offset++], l);
}
if (!(ic->next && ic->next->op == LABEL &&
IC_LABEL (ic->next) == returnLabel))
- emitcode ("ljmp", "%05d$", (returnLabel->key + 100));
+ emitcode ("ljmp", "!tlabel", (returnLabel->key + 100));
}
D (emitcode (";", "genLabel ");
);
- emitcode ("", "%05d$:", (IC_LABEL (ic)->key + 100));
+ emitcode ("", "!tlabeldef", (IC_LABEL (ic)->key + 100));
}
/*-----------------------------------------------------------------*/
{
D (emitcode (";", "genGoto ");
);
- emitcode ("ljmp", "%05d$", (IC_LABEL (ic)->key + 100));
+ emitcode ("ljmp", "!tlabel", (IC_LABEL (ic)->key + 100));
}
/*-----------------------------------------------------------------*/
ic = ic->prev;
count++;
+ /* If we have any pushes or pops, we cannot predict the distance.
+ I don't like this at all, this should be dealt with in the
+ back-end */
+ if (ic->op == IPUSH || ic->op == IPOP) {
+ return 0;
+ }
+
if (ic->op == LABEL && IC_LABEL (ic)->key == key)
{
/* printf("findLabelBackwards = %d\n", count); */
if ((icount = (unsigned int) floatFromVal (AOP (IC_RIGHT (ic))->aopu.aop_lit)) > 4)
return FALSE;
+ if (size == 1 && AOP(IC_LEFT(ic)) == AOP(IC_RESULT(ic)) &&
+ AOP_TYPE(IC_LEFT(ic)) == AOP_DIR ) {
+ while (icount--) {
+ emitcode("inc","%s",aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE,NULL));
+ }
+ return TRUE;
+ }
/* if increment 16 bits in register */
if (
AOP_TYPE (IC_LEFT (ic)) == AOP_REG &&
(size > 1) &&
(icount == 1))
{
- symbol *tlbl;
- int emitTlbl;
- int labelRange;
+ symbol *tlbl;
+ int emitTlbl;
+ int labelRange;
+ char *l;
/* If the next instruction is a goto and the goto target
* is <= 5 instructions previous to this, we can generate
&& (labelRange = findLabelBackwards (ic, IC_LABEL (ic->next)->key)) != 0
&& labelRange <= 5)
{
- emitcode (";", "tail increment optimized (range %d)", labelRange);
+ D(emitcode (";", "tail increment optimized (range %d)", labelRange););
tlbl = IC_LABEL (ic->next);
emitTlbl = 0;
}
tlbl = newiTempLabel (NULL);
emitTlbl = 1;
}
- emitcode ("inc", "%s", aopGet (AOP (IC_RESULT (ic)), LSB, FALSE, FALSE, FALSE));
+
+ l = aopGet (AOP (IC_RESULT (ic)), LSB, FALSE, FALSE, NULL);
+ emitcode ("inc", "%s", l);
+
if (AOP_TYPE (IC_RESULT (ic)) == AOP_REG ||
IS_AOP_PREG (IC_RESULT (ic)))
- emitcode ("cjne", "%s,#0x00,%05d$"
- ,aopGet (AOP (IC_RESULT (ic)), LSB, FALSE, FALSE, FALSE)
- ,tlbl->key + 100);
+ {
+ emitcode ("cjne", "%s,#0,!tlabel", l, tlbl->key + 100);
+ }
else
- {
+ {
emitcode ("clr", "a");
- emitcode ("cjne", "a,%s,%05d$"
- ,aopGet (AOP (IC_RESULT (ic)), LSB, FALSE, FALSE, FALSE)
- ,tlbl->key + 100);
- }
+ emitcode ("cjne", "a,%s,!tlabel", l, tlbl->key + 100);
+ }
- emitcode ("inc", "%s", aopGet (AOP (IC_RESULT (ic)), MSB16, FALSE, FALSE, FALSE));
+ l = aopGet (AOP (IC_RESULT (ic)), MSB16, FALSE, FALSE, NULL);
+ emitcode ("inc", "%s", l);
if (size > 2)
{
- if (AOP_TYPE (IC_RESULT (ic)) == AOP_REG ||
- IS_AOP_PREG (IC_RESULT (ic)))
- emitcode ("cjne", "%s,#0x00,%05d$"
- ,aopGet (AOP (IC_RESULT (ic)), MSB16, FALSE, FALSE, FALSE)
- ,tlbl->key + 100);
- else
- emitcode ("cjne", "a,%s,%05d$"
- ,aopGet (AOP (IC_RESULT (ic)), MSB16, FALSE, FALSE, FALSE)
- ,tlbl->key + 100);
+ if (!strcmp(l, "acc"))
+ {
+ emitcode("jnz", "!tlabel", tlbl->key + 100);
+ }
+ else if (AOP_TYPE (IC_RESULT (ic)) == AOP_REG ||
+ IS_AOP_PREG (IC_RESULT (ic)))
+ {
+ emitcode ("cjne", "%s,#0,!tlabel", l, tlbl->key + 100);
+ }
+ else
+ {
+ emitcode ("cjne", "a,%s,!tlabel", l, tlbl->key + 100);
+ }
- emitcode ("inc", "%s", aopGet (AOP (IC_RESULT (ic)), MSB24, FALSE, FALSE, FALSE));
+ l = aopGet (AOP (IC_RESULT (ic)), MSB24, FALSE, FALSE, NULL);
+ emitcode ("inc", "%s", l);
}
if (size > 3)
{
- if (AOP_TYPE (IC_RESULT (ic)) == AOP_REG ||
- IS_AOP_PREG (IC_RESULT (ic)))
- emitcode ("cjne", "%s,#0x00,%05d$"
- ,aopGet (AOP (IC_RESULT (ic)), MSB24, FALSE, FALSE, FALSE)
- ,tlbl->key + 100);
- else
+ if (!strcmp(l, "acc"))
{
- emitcode ("cjne", "a,%s,%05d$"
- ,aopGet (AOP (IC_RESULT (ic)), MSB24, FALSE, FALSE, FALSE)
- ,tlbl->key + 100);
+ emitcode("jnz", "!tlabel", tlbl->key + 100);
}
- emitcode ("inc", "%s", aopGet (AOP (IC_RESULT (ic)), MSB32, FALSE, FALSE, FALSE));
- }
+ else if (AOP_TYPE (IC_RESULT (ic)) == AOP_REG ||
+ IS_AOP_PREG (IC_RESULT (ic)))
+ {
+ emitcode ("cjne", "%s,#0,!tlabel", l, tlbl->key + 100);
+ }
+ else
+ {
+ emitcode ("cjne", "a,%s,!tlabel", l, tlbl->key + 100);
+ }
+
+ l = aopGet (AOP (IC_RESULT (ic)), MSB32, FALSE, FALSE, NULL);
+ emitcode ("inc", "%s", l); }
if (emitTlbl)
{
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
}
return TRUE;
}
+ if (AOP_TYPE(IC_RESULT(ic))==AOP_STR && IS_ITEMP(IC_RESULT(ic)) &&
+ !AOP_USESDPTR(IC_LEFT(ic)) && icount <= 5 && size <= 3 &&
+ options.model == MODEL_FLAT24 ) {
+
+ switch (size) {
+ case 3:
+ emitcode ("mov","dpx,%s",aopGet(AOP (IC_LEFT (ic)), 2, FALSE, FALSE, NULL));
+ case 2:
+ emitcode ("mov","dph,%s",aopGet(AOP (IC_LEFT (ic)), 1, FALSE, FALSE, NULL));
+ case 1:
+ emitcode ("mov","dpl,%s",aopGet(AOP (IC_LEFT (ic)), 0, FALSE, FALSE, NULL));
+ break;
+ }
+ while (icount--) emitcode ("inc","dptr");
+ return TRUE;
+ }
+
+ if (AOP_INDPTRn(IC_LEFT(ic)) && AOP_INDPTRn(IC_RESULT(ic)) &&
+ AOP(IC_LEFT(ic))->aopu.dptr == AOP(IC_RESULT(ic))->aopu.dptr &&
+ icount <= 5 ) {
+ emitcode ("mov","dps,#!constbyte",AOP(IC_LEFT(ic))->aopu.dptr);
+ while (icount--) emitcode ("inc","dptr");
+ emitcode ("mov","dps,#0");
+ return TRUE;
+ }
+
/* if the sizes are greater than 1 then we cannot */
if (AOP_SIZE (IC_RESULT (ic)) > 1 ||
AOP_SIZE (IC_LEFT (ic)) > 1)
if (icount > 3)
{
- MOVA (aopGet (AOP (IC_LEFT (ic)), 0, FALSE, FALSE, TRUE));
- emitcode ("add", "a,#0x%02x", ((char) icount) & 0xff);
+ MOVA (aopGet (AOP (IC_LEFT (ic)), 0, FALSE, FALSE, NULL));
+ emitcode ("add", "a,#!constbyte", ((char) icount) & 0xff);
aopPut (AOP (IC_RESULT (ic)), "a", 0);
}
else
_startLazyDPSEvaluation ();
while (icount--)
{
- emitcode ("inc", "%s", aopGet (AOP (IC_LEFT (ic)), 0, FALSE, FALSE, FALSE));
+ emitcode ("inc", "%s", aopGet (AOP (IC_LEFT (ic)), 0, FALSE, FALSE, NULL));
}
_endLazyDPSEvaluation ();
}
}
else
{
- emitcode ("jz", "%05d$", tlbl->key + 100);
+ emitcode ("jz", "!tlabel", tlbl->key + 100);
emitcode ("mov", "a,%s", one);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
outAcc (result);
}
}
static void
genPlusBits (iCode * ic)
{
- D (emitcode (";", "genPlusBits ");
- );
+ D (emitcode (";", "genPlusBits "););
+
if (AOP_TYPE (IC_RESULT (ic)) == AOP_CRY)
{
symbol *lbl = newiTempLabel (NULL);
emitcode ("mov", "c,%s", AOP (IC_LEFT (ic))->aopu.aop_dir);
- emitcode ("jnb", "%s,%05d$", AOP (IC_RIGHT (ic))->aopu.aop_dir, (lbl->key + 100));
+ emitcode ("jnb", "%s,!tlabel", AOP (IC_RIGHT (ic))->aopu.aop_dir, (lbl->key + 100));
emitcode ("cpl", "c");
- emitcode ("", "%05d$:", (lbl->key + 100));
+ emitcode ("", "!tlabeldef", (lbl->key + 100));
outBitC (IC_RESULT (ic));
}
else
emitcode ("mov", "c,%s", AOP (IC_LEFT (ic))->aopu.aop_dir);
emitcode ("rlc", "a");
emitcode ("mov", "c,%s", AOP (IC_RIGHT (ic))->aopu.aop_dir);
- emitcode ("addc", "a,#0x00");
+ emitcode ("addc", "a,#0");
outAcc (IC_RESULT (ic));
}
}
!sameRegs (AOP (IC_RESULT (ic)), AOP (IC_LEFT (ic))))
{
aopPut (AOP (IC_RESULT (ic)),
- aopGet (AOP (IC_LEFT (ic)), GPTRSIZE - 1, FALSE, FALSE, FALSE),
+ aopGet (AOP (IC_LEFT (ic)), GPTRSIZE - 1, FALSE, FALSE, NULL),
GPTRSIZE - 1);
}
!sameRegs (AOP (IC_RESULT (ic)), AOP (IC_RIGHT (ic))))
{
aopPut (AOP (IC_RESULT (ic)),
- aopGet (AOP (IC_RIGHT (ic)), GPTRSIZE - 1, FALSE, FALSE, FALSE),
+ aopGet (AOP (IC_RIGHT (ic)), GPTRSIZE - 1, FALSE, FALSE, NULL),
GPTRSIZE - 1);
}
!sameRegs (AOP (IC_RESULT (ic)), AOP (IC_LEFT (ic))) &&
!sameRegs (AOP (IC_RESULT (ic)), AOP (IC_RIGHT (ic))))
{
- char buffer[5];
- sprintf (buffer, "#%d", pointerCode (getSpec (operandType (IC_LEFT (ic)))));
- aopPut (AOP (IC_RESULT (ic)), buffer, GPTRSIZE - 1);
+ char buff[5];
+ SNPRINTF (buff, sizeof(buff),
+ "#%d", pointerCode (getSpec (operandType (IC_LEFT (ic)))));
+ aopPut (AOP (IC_RESULT (ic)), buff, GPTRSIZE - 1);
}
}
-#define AOP_OP_3(ic) \
- aopOp (IC_RIGHT(ic),ic,FALSE, FALSE); \
- aopOp (IC_LEFT(ic),ic,FALSE, (AOP_TYPE(IC_RIGHT(ic)) == AOP_DPTR)); \
- aopOp (IC_RESULT(ic),ic,TRUE, (AOP_TYPE(IC_LEFT(ic)) == AOP_DPTR) || \
- (AOP_TYPE(IC_RIGHT(ic)) == AOP_DPTR)); \
- if (AOP_TYPE(IC_LEFT(ic)) == AOP_DPTR2 && \
- AOP_TYPE(IC_RESULT(ic)) == AOP_DPTR2) \
- { \
- /* werror(E_INTERNAL_ERROR,__FILE__,__LINE__, */ \
- fprintf(stderr, \
- "Ack: three operands in far space! (%s:%d %s:%d)\n", __FILE__, __LINE__, ic->filename, ic->lineno); \
- }
-
-#define AOP_OP_3_NOFATAL(ic, rc) \
- aopOp (IC_RIGHT(ic),ic,FALSE, FALSE); \
- aopOp (IC_LEFT(ic),ic,FALSE, (AOP_TYPE(IC_RIGHT(ic)) == AOP_DPTR)); \
- if (AOP_TYPE(IC_LEFT(ic)) == AOP_DPTR2 && \
- isOperandInFarSpace(IC_RESULT(ic))) \
- { \
- /* No can do; DPTR & DPTR2 in use, and we need another. */ \
- rc = TRUE; \
- } \
- else \
- { \
- aopOp (IC_RESULT(ic),ic,TRUE, (AOP_TYPE(IC_LEFT(ic)) == AOP_DPTR) || \
- (AOP_TYPE(IC_RIGHT(ic)) == AOP_DPTR)); \
- rc = FALSE; \
- if (AOP_TYPE(IC_LEFT(ic)) == AOP_DPTR2 && \
- AOP_TYPE(IC_RESULT(ic)) == AOP_DPTR2) \
- { \
- /* werror(E_INTERNAL_ERROR,__FILE__,__LINE__, */ \
- fprintf(stderr, \
- "Ack: got unexpected DP2! (%s:%d %s:%d)\n", __FILE__, __LINE__, ic->filename, ic->lineno); \
- } \
- }
-
-#define AOP_OP_2(ic) \
- aopOp (IC_RIGHT(ic),ic,FALSE, FALSE); \
- aopOp (IC_LEFT(ic),ic,FALSE, (AOP_TYPE(IC_RIGHT(ic)) == AOP_DPTR));
-
-#define AOP_SET_LOCALS(ic) \
- left = IC_LEFT(ic); \
- right = IC_RIGHT(ic); \
- result = IC_RESULT(ic);
-
-/*-----------------------------------------------------------------*/
-/* genPlus - generates code for addition */
-/*-----------------------------------------------------------------*/
-static void
-genPlus (iCode * ic)
+// The guts of AOP_OP_3_NOFATAL. Generates the left & right opcodes of an IC,
+// generates the result if possible. If result is generated, returns TRUE; otherwise
+// returns false and caller must deal with fact that result isn't aopOp'd.
+bool aopOp3(iCode * ic)
{
- int size, offset = 0;
- bool pushResult = FALSE;
- int rSize;
-
- D (emitcode (";", "genPlus ");
- );
-
- /* special cases :- */
+ bool dp1InUse, dp2InUse;
+ bool useDp2;
- AOP_OP_3_NOFATAL (ic, pushResult);
- if (pushResult)
+ // First, generate the right opcode. DPTR may be used if neither left nor result are
+ // of type AOP_STR.
+
+// D(emitcode(";", "aopOp3: AOP_IS_STR left: %s right: %s result: %s",
+// AOP_IS_STR(IC_LEFT(ic)) ? "true" : "false",
+// AOP_IS_STR(IC_RIGHT(ic)) ? "true" : "false",
+// AOP_IS_STR(IC_RESULT(ic)) ? "true" : "false");
+// );
+// D(emitcode(";", "aopOp3: AOP_IS_DPTRn left: %s right: %s result: %s",
+// AOP_IS_DPTRn(IC_LEFT(ic)) ? "true" : "false",
+// AOP_IS_DPTRn(IC_RIGHT(ic)) ? "true" : "false",
+// AOP_IS_DPTRn(IC_RESULT(ic)) ? "true" : "false");
+// );
+
+ // Right uses DPTR unless left or result is an AOP_STR; however,
+ // if right is an AOP_STR, it must use DPTR regardless.
+ if ((AOP_IS_STR(IC_LEFT(ic)) || AOP_IS_STR(IC_RESULT(ic)))
+ && !AOP_IS_STR(IC_RIGHT(ic)))
{
- D (emitcode (";", "genPlus: must push result: 3 ops in far space");
- );
+ useDp2 = TRUE;
}
-
- if (!pushResult)
+ else
{
- /* if literal, literal on the right or
- if left requires ACC or right is already
- in ACC */
- if ((AOP_TYPE (IC_LEFT (ic)) == AOP_LIT)
- || ((AOP_NEEDSACC (IC_LEFT (ic))) && !(AOP_NEEDSACC (IC_RIGHT (ic))))
- || AOP_TYPE (IC_RIGHT (ic)) == AOP_ACC)
+ useDp2 = FALSE;
+ }
+
+ aopOp (IC_RIGHT(ic),ic,FALSE, useDp2);
+
+ // if the right used DPTR, left MUST use DPTR2.
+ // if the right used DPTR2, left MUST use DPTR.
+ // if both are still available, we prefer to use DPTR. But if result is an AOP_STR
+ // and left is not an AOP_STR, then we will get better code if we use DP2 for left,
+ // enabling us to assign DPTR to result.
+
+ if (AOP_USESDPTR(IC_RIGHT(ic)))
+ {
+ useDp2 = TRUE;
+ }
+ else if (AOP_USESDPTR2(IC_RIGHT(ic)))
+ {
+ useDp2 = FALSE;
+ }
+ else
+ {
+ if (AOP_IS_STR(IC_RESULT(ic)) && !AOP_IS_STR(IC_LEFT(ic)))
{
- operand *t = IC_RIGHT (ic);
- IC_RIGHT (ic) = IC_LEFT (ic);
- IC_LEFT (ic) = t;
- emitcode (";", "Swapped plus args.");
+ useDp2 = TRUE;
}
-
+ else
+ {
+ useDp2 = FALSE;
+ }
+ }
+
+ aopOp(IC_LEFT(ic), ic, FALSE, useDp2);
+
+
+ // We've op'd the left & right. So, if left or right are the same operand as result,
+ // we know aopOp will succeed, and we can just do it & bail.
+ if (isOperandEqual(IC_LEFT(ic),IC_RESULT(ic)))
+ {
+ aopOp (IC_RESULT (ic), ic, TRUE, AOP_USESDPTR2 (IC_LEFT (ic)));
+ return TRUE;
+ }
+ if (isOperandEqual(IC_RIGHT(ic),IC_RESULT(ic)))
+ {
+// D(emitcode(";", "aopOp3: (left | right) & result equal"););
+ aopOp(IC_RESULT(ic),ic,TRUE, AOP_USESDPTR2 (IC_RIGHT (ic)));
+ return TRUE;
+ }
+
+ // Operands may be equivalent (but not equal) if they share a spill location. If
+ // so, use the same DPTR or DPTR2.
+ if (operandsEqu (IC_LEFT(ic), IC_RESULT(ic)))
+ {
+ aopOp (IC_RESULT (ic), ic, TRUE, AOP_USESDPTR2 (IC_LEFT (ic)));
+ return TRUE;
+ }
+ if (operandsEqu (IC_RIGHT(ic), IC_RESULT(ic)))
+ {
+ aopOp (IC_RESULT (ic), ic, TRUE, AOP_USESDPTR2 (IC_RIGHT (ic)));
+ return TRUE;
+ }
+
+ // Note which dptrs are currently in use.
+ dp1InUse = AOP_USESDPTR(IC_LEFT(ic)) || AOP_USESDPTR(IC_RIGHT(ic));
+ dp2InUse = AOP_USESDPTR2(IC_LEFT(ic)) || AOP_USESDPTR2(IC_RIGHT(ic));
+
+ // OK, now if either left or right uses DPTR and the result is an AOP_STR, we cannot
+ // generate it.
+ if (dp1InUse && AOP_IS_STR(IC_RESULT(ic)))
+ {
+ return FALSE;
+ }
+
+ // Likewise, if left or right uses DPTR2 and the result is a DPTRn, we cannot generate it.
+ if (dp2InUse && AOP_IS_DPTRn(IC_RESULT(ic)))
+ {
+ return FALSE;
+ }
+
+ // or, if both dp1 & dp2 are in use and the result needs a dptr, we're out of luck
+ if (dp1InUse && dp2InUse && isOperandInFarSpace(IC_RESULT(ic)))
+ {
+ return FALSE;
+ }
+
+ aopOp (IC_RESULT(ic),ic,TRUE, dp1InUse);
+
+ // Some sanity checking...
+ if (dp1InUse && AOP_USESDPTR(IC_RESULT(ic)))
+ {
+ fprintf(stderr,
+ "Internal error: got unexpected DPTR (%s:%d %s:%d)\n",
+ __FILE__, __LINE__, ic->filename, ic->lineno);
+ emitcode(";", ">>> unexpected DPTR here.");
+ }
+
+ if (dp2InUse && AOP_USESDPTR2(IC_RESULT(ic)))
+ {
+ fprintf(stderr,
+ "Internal error: got unexpected DPTR2 (%s:%d %s:%d)\n",
+ __FILE__, __LINE__, ic->filename, ic->lineno);
+ emitcode(";", ">>> unexpected DPTR2 here.");
+ }
+
+ return TRUE;
+}
+
+// Macro to aopOp all three operands of an ic. If this cannot be done,
+// the IC_LEFT and IC_RIGHT operands will be aopOp'd, and the rc parameter
+// will be set TRUE. The caller must then handle the case specially, noting
+// that the IC_RESULT operand is not aopOp'd.
+//
+#define AOP_OP_3_NOFATAL(ic, rc) \
+ do { rc = !aopOp3(ic); } while (0)
+
+// aopOp the left & right operands of an ic.
+#define AOP_OP_2(ic) \
+ aopOp (IC_RIGHT(ic),ic,FALSE, AOP_IS_STR(IC_LEFT(ic))); \
+ aopOp (IC_LEFT(ic),ic,FALSE, AOP_USESDPTR(IC_RIGHT(ic)));
+
+// convienience macro.
+#define AOP_SET_LOCALS(ic) \
+ left = IC_LEFT(ic); \
+ right = IC_RIGHT(ic); \
+ result = IC_RESULT(ic);
+
+
+// Given an integer value of pushedSize bytes on the stack,
+// adjust it to be resultSize bytes, either by discarding
+// the most significant bytes or by zero-padding.
+//
+// On exit from this macro, pushedSize will have been adjusted to
+// equal resultSize, and ACC may be trashed.
+#define ADJUST_PUSHED_RESULT(pushedSize, resultSize) \
+ /* If the pushed data is bigger than the result, \
+ * simply discard unused bytes. Icky, but works. \
+ */ \
+ while (pushedSize > resultSize) \
+ { \
+ D (emitcode (";", "discarding unused result byte."););\
+ emitcode ("pop", "acc"); \
+ pushedSize--; \
+ } \
+ if (pushedSize < resultSize) \
+ { \
+ emitcode ("clr", "a"); \
+ /* Conversly, we haven't pushed enough here. \
+ * just zero-pad, and all is well. \
+ */ \
+ while (pushedSize < resultSize) \
+ { \
+ emitcode("push", "acc"); \
+ pushedSize++; \
+ } \
+ } \
+ assert(pushedSize == resultSize);
+
+/*-----------------------------------------------------------------*/
+/* genPlus - generates code for addition */
+/*-----------------------------------------------------------------*/
+static void
+genPlus (iCode * ic)
+{
+ int size, offset = 0;
+ bool pushResult;
+ int rSize;
+
+ D (emitcode (";", "genPlus "););
+
+ /* special cases :- */
+ if ( AOP_IS_STR(IC_LEFT(ic)) &&
+ isOperandLiteral(IC_RIGHT(ic)) && OP_SYMBOL(IC_RESULT(ic))->ruonly) {
+ aopOp (IC_RIGHT (ic), ic, TRUE, FALSE);
+ size = (int)floatFromVal (AOP (IC_RIGHT(ic))->aopu.aop_lit);
+ if (size <= 9) {
+ while (size--) emitcode ("inc","dptr");
+ } else {
+ emitcode ("mov","a,dpl");
+ emitcode ("add","a,#!constbyte",size & 0xff);
+ emitcode ("mov","dpl,a");
+ emitcode ("mov","a,dph");
+ emitcode ("addc","a,#!constbyte",(size >> 8) & 0xff);
+ emitcode ("mov","dph,a");
+ emitcode ("mov","a,dpx");
+ emitcode ("addc","a,#!constbyte",(size >> 16) & 0xff);
+ emitcode ("mov","dpx,a");
+ }
+ freeAsmop (IC_RIGHT (ic), NULL, ic, FALSE);
+ return ;
+ }
+ if ( IS_SYMOP(IC_LEFT(ic)) &&
+ OP_SYMBOL(IC_LEFT(ic))->remat &&
+ isOperandInFarSpace(IC_RIGHT(ic))) {
+ operand *op = IC_RIGHT(ic);
+ IC_RIGHT(ic) = IC_LEFT(ic);
+ IC_LEFT(ic) = op;
+ }
+
+ AOP_OP_3_NOFATAL (ic, pushResult);
+
+ if (pushResult)
+ {
+ D (emitcode (";", "genPlus: must push result: 3 ops in far space"););
+ }
+
+ if (!pushResult)
+ {
+ /* if literal, literal on the right or
+ if left requires ACC or right is already
+ in ACC */
+ if ((AOP_TYPE (IC_LEFT (ic)) == AOP_LIT)
+ || ((AOP_NEEDSACC (IC_LEFT (ic))) && !(AOP_NEEDSACC (IC_RIGHT (ic))))
+ || AOP_TYPE (IC_RIGHT (ic)) == AOP_ACC)
+ {
+ operand *t = IC_RIGHT (ic);
+ IC_RIGHT (ic) = IC_LEFT (ic);
+ IC_LEFT (ic) = t;
+ emitcode (";", "Swapped plus args.");
+ }
+
/* if both left & right are in bit
space */
if (AOP_TYPE (IC_LEFT (ic)) == AOP_CRY &&
_startLazyDPSEvaluation ();
while (size--)
{
- MOVA (aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE, TRUE));
- emitcode ("addc", "a,#00");
+ MOVA (aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE, NULL));
+ emitcode ("addc", "a,#0");
aopPut (AOP (IC_RESULT (ic)), "a", offset++);
}
_endLazyDPSEvaluation ();
_startLazyDPSEvaluation ();
while (size--)
{
- if (AOP_TYPE (IC_LEFT (ic)) == AOP_ACC)
+ if (AOP_TYPE(IC_LEFT(ic)) == AOP_ACC && !AOP_NEEDSACC(IC_RIGHT(ic)))
{
- MOVA (aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE, NULL));
if (offset == 0)
emitcode ("add", "a,%s",
- aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE, FALSE));
+ aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE, NULL));
else
emitcode ("addc", "a,%s",
- aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE, FALSE));
+ aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE, NULL));
}
else
{
- MOVA (aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE, TRUE));
+ if (AOP_TYPE(IC_LEFT(ic)) == AOP_ACC && (offset == 0))
+ {
+ /* right is going to use ACC or we would have taken the
+ * above branch.
+ */
+ assert(AOP_NEEDSACC(IC_RIGHT(ic)));
+ TR_AP("#3");
+ D(emitcode(";", "+ AOP_ACC special case."););
+ emitcode("xch", "a, %s", DP2_RESULT_REG);
+ }
+ MOVA (aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE, NULL));
if (offset == 0)
- emitcode ("add", "a,%s",
- aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE, FALSE));
+ {
+ if (AOP_TYPE(IC_LEFT(ic)) == AOP_ACC)
+ {
+ TR_AP("#4");
+ emitcode("add", "a, %s", DP2_RESULT_REG);
+ }
+ else
+ {
+ emitcode ("add", "a,%s",
+ aopGet (AOP(IC_LEFT(ic)), offset, FALSE, FALSE,
+ DP2_RESULT_REG));
+ }
+ }
else
+ {
emitcode ("addc", "a,%s",
- aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE, FALSE));
+ aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE,
+ DP2_RESULT_REG));
+ }
}
if (!pushResult)
{
size = getDataSize (IC_LEFT (ic));
rSize = getDataSize (IC_RESULT (ic));
- /* If the pushed data is bigger than the result,
- * simply discard unused bytes. Icky, but works.
- *
- * Should we throw a warning here? We're losing data...
- */
- while (size > rSize)
- {
- D (emitcode (";", "discarding unused result byte.");
- );
- emitcode ("pop", "acc");
- size--;
- offset--;
- }
- if (size < rSize)
- {
- emitcode ("clr", "a");
- /* Conversly, we haven't pushed enough here.
- * just zero-pad, and all is well.
- */
- while (size < rSize)
- {
- emitcode ("push", "acc");
- size++;
- offset++;
- }
- }
+ ADJUST_PUSHED_RESULT(size, rSize);
_startLazyDPSEvaluation ();
while (size--)
{
emitcode ("pop", "acc");
- aopPut (AOP (IC_RESULT (ic)), "a", --offset);
+ aopPut (AOP (IC_RESULT (ic)), "a", size);
}
_endLazyDPSEvaluation ();
}
if ((icount = (unsigned int) floatFromVal (AOP (IC_RIGHT (ic))->aopu.aop_lit)) > 4)
return FALSE;
+ if (size == 1 && AOP(IC_LEFT(ic)) == AOP(IC_RESULT(ic)) &&
+ AOP_TYPE(IC_LEFT(ic)) == AOP_DIR ) {
+ while (icount--) {
+ emitcode("dec","%s",aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE,NULL));
+ }
+ return TRUE;
+ }
/* if decrement 16 bits in register */
if (AOP_TYPE (IC_LEFT (ic)) == AOP_REG &&
AOP_TYPE (IC_RESULT (ic)) == AOP_REG &&
(icount == 1))
{
symbol *tlbl;
- int emitTlbl;
- int labelRange;
+ int emitTlbl;
+ int labelRange;
+ char *l;
/* If the next instruction is a goto and the goto target
* is <= 5 instructions previous to this, we can generate
emitTlbl = 1;
}
- emitcode ("dec", "%s", aopGet (AOP (IC_RESULT (ic)), LSB, FALSE, FALSE, FALSE));
+ l = aopGet (AOP (IC_RESULT (ic)), LSB, FALSE, FALSE, NULL);
+ emitcode ("dec", "%s", l);
+
if (AOP_TYPE (IC_RESULT (ic)) == AOP_REG ||
AOP_TYPE (IC_RESULT (ic)) == AOP_DPTR ||
IS_AOP_PREG (IC_RESULT (ic)))
- emitcode ("cjne", "%s,#0xff,%05d$"
- ,aopGet (AOP (IC_RESULT (ic)), LSB, FALSE, FALSE, FALSE)
- ,tlbl->key + 100);
+ {
+ emitcode ("cjne", "%s,#!constbyte,!tlabel", l, 0xff, tlbl->key + 100);
+ }
else
- {
- emitcode ("mov", "a,#0xff");
- emitcode ("cjne", "a,%s,%05d$"
- ,aopGet (AOP (IC_RESULT (ic)), LSB, FALSE, FALSE, FALSE)
- ,tlbl->key + 100);
- }
- emitcode ("dec", "%s", aopGet (AOP (IC_RESULT (ic)), MSB16, FALSE, FALSE, FALSE));
+ {
+ emitcode ("mov", "a,#!constbyte",0xff);
+ emitcode ("cjne", "a,%s,!tlabel", l, tlbl->key + 100);
+ }
+ l = aopGet (AOP (IC_RESULT (ic)), MSB16, FALSE, FALSE, NULL);
+ emitcode ("dec", "%s", l);
if (size > 2)
{
- if (AOP_TYPE (IC_RESULT (ic)) == AOP_REG ||
- AOP_TYPE (IC_RESULT (ic)) == AOP_DPTR ||
- IS_AOP_PREG (IC_RESULT (ic)))
- emitcode ("cjne", "%s,#0xff,%05d$"
- ,aopGet (AOP (IC_RESULT (ic)), MSB16, FALSE, FALSE, FALSE)
- ,tlbl->key + 100);
- else
+ if (!strcmp(l, "acc"))
+ {
+ emitcode("jnz", "!tlabel", tlbl->key + 100);
+ }
+ else if (AOP_TYPE (IC_RESULT (ic)) == AOP_REG ||
+ AOP_TYPE (IC_RESULT (ic)) == AOP_DPTR ||
+ IS_AOP_PREG (IC_RESULT (ic)))
+ {
+ emitcode ("cjne", "%s,#!constbyte,!tlabel", l, 0xff, tlbl->key + 100);
+ }
+ else
{
- emitcode ("cjne", "a,%s,%05d$"
- ,aopGet (AOP (IC_RESULT (ic)), MSB16, FALSE, FALSE, FALSE)
- ,tlbl->key + 100);
+ emitcode ("mov", "a,#!constbyte",0xff);
+ emitcode ("cjne", "a,%s,!tlabel", l, tlbl->key + 100);
}
- emitcode ("dec", "%s", aopGet (AOP (IC_RESULT (ic)), MSB24, FALSE, FALSE, FALSE));
+ l = aopGet (AOP (IC_RESULT (ic)), MSB24, FALSE, FALSE, NULL);
+ emitcode ("dec", "%s", l);
}
if (size > 3)
{
- if (AOP_TYPE (IC_RESULT (ic)) == AOP_REG ||
- AOP_TYPE (IC_RESULT (ic)) == AOP_DPTR ||
- IS_AOP_PREG (IC_RESULT (ic)))
- emitcode ("cjne", "%s,#0xff,%05d$"
- ,aopGet (AOP (IC_RESULT (ic)), MSB24, FALSE, FALSE, FALSE)
- ,tlbl->key + 100);
- else
+ if (!strcmp(l, "acc"))
{
- emitcode ("cjne", "a,%s,%05d$"
- ,aopGet (AOP (IC_RESULT (ic)), MSB24, FALSE, FALSE, FALSE)
- ,tlbl->key + 100);
+ emitcode("jnz", "!tlabel", tlbl->key + 100);
+ }
+ else if (AOP_TYPE (IC_RESULT (ic)) == AOP_REG ||
+ AOP_TYPE (IC_RESULT (ic)) == AOP_DPTR ||
+ IS_AOP_PREG (IC_RESULT (ic)))
+ {
+ emitcode ("cjne", "%s,#!constbyte,!tlabel", l, 0xff, tlbl->key + 100);
}
- emitcode ("dec", "%s", aopGet (AOP (IC_RESULT (ic)), MSB32, FALSE, FALSE, FALSE));
+ else
+ {
+ emitcode ("mov", "a,#!constbyte",0xff);
+ emitcode ("cjne", "a,%s,!tlabel", l, tlbl->key + 100);
+ }
+ l = aopGet (AOP (IC_RESULT (ic)), MSB32, FALSE, FALSE, NULL);
+ emitcode ("dec", "%s", l);
}
if (emitTlbl)
{
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
}
return TRUE;
}
_startLazyDPSEvaluation ();
while (icount--)
{
- emitcode ("dec", "%s", aopGet (AOP (IC_RESULT (ic)), 0, FALSE, FALSE, FALSE));
+ emitcode ("dec", "%s",
+ aopGet (AOP (IC_RESULT (ic)), 0, FALSE, FALSE, NULL));
}
_endLazyDPSEvaluation ();
int size = (getDataSize (result) - offset);
if (size > 0)
{
+ _startLazyDPSEvaluation();
if (sign)
{
emitcode ("rlc", "a");
emitcode ("subb", "a,acc");
while (size--)
+ {
aopPut (AOP (result), "a", offset++);
+ }
}
else
+ {
while (size--)
+ {
aopPut (AOP (result), zero, offset++);
+ }
+ }
+ _endLazyDPSEvaluation();
}
}
{
symbol *lbl = newiTempLabel (NULL);
- D (emitcode (";", "genMinusBits ");
- );
+ D (emitcode (";", "genMinusBits "););
if (AOP_TYPE (IC_RESULT (ic)) == AOP_CRY)
{
emitcode ("mov", "c,%s", AOP (IC_LEFT (ic))->aopu.aop_dir);
- emitcode ("jnb", "%s,%05d$", AOP (IC_RIGHT (ic))->aopu.aop_dir, (lbl->key + 100));
+ emitcode ("jnb", "%s,!tlabel", AOP (IC_RIGHT (ic))->aopu.aop_dir, (lbl->key + 100));
emitcode ("cpl", "c");
- emitcode ("", "%05d$:", (lbl->key + 100));
+ emitcode ("", "!tlabeldef", (lbl->key + 100));
outBitC (IC_RESULT (ic));
}
else
{
emitcode ("mov", "c,%s", AOP (IC_RIGHT (ic))->aopu.aop_dir);
emitcode ("subb", "a,acc");
- emitcode ("jnb", "%s,%05d$", AOP (IC_LEFT (ic))->aopu.aop_dir, (lbl->key + 100));
+ emitcode ("jnb", "%s,!tlabel", AOP (IC_LEFT (ic))->aopu.aop_dir, (lbl->key + 100));
emitcode ("inc", "a");
- emitcode ("", "%05d$:", (lbl->key + 100));
+ emitcode ("", "!tlabeldef", (lbl->key + 100));
aopPut (AOP (IC_RESULT (ic)), "a", 0);
addSign (IC_RESULT (ic), MSB16, SPEC_USIGN (getSpec (operandType (IC_RESULT (ic)))));
}
static void
genMinus (iCode * ic)
{
- int size, offset = 0;
- int rSize;
- unsigned long lit = 0L;
- bool pushResult = FALSE;
+ int size, offset = 0;
+ int rSize;
+ long lit = 0L;
+ bool pushResult;
- D (emitcode (";", "genMinus ");
- );
+ D (emitcode (";", "genMinus "););
- aopOp (IC_LEFT (ic), ic, FALSE, FALSE);
- aopOp (IC_RIGHT (ic), ic, FALSE, TRUE);
- if ((AOP_TYPE (IC_LEFT (ic)) == AOP_DPTR) &&
- (AOP_TYPE (IC_RIGHT (ic)) == AOP_DPTR2))
- {
- pushResult = TRUE;
- }
- else
- {
- aopOp (IC_RESULT (ic), ic, TRUE, AOP_TYPE (IC_LEFT (ic)) == AOP_DPTR);
+ AOP_OP_3_NOFATAL(ic, pushResult);
+ if (!pushResult)
+ {
/* special cases :- */
/* if both left & right are in bit space */
if (AOP_TYPE (IC_LEFT (ic)) == AOP_CRY &&
}
else
{
- lit = (unsigned long) floatFromVal (AOP (IC_RIGHT (ic))->aopu.aop_lit);
- lit = -(long) lit;
+ lit = (long) floatFromVal (AOP (IC_RIGHT (ic))->aopu.aop_lit);
+ lit = -lit;
}
/* if literal, add a,#-lit, else normal subb */
_startLazyDPSEvaluation ();
- while (size--)
- {
- MOVA (aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE, TRUE));
- if (AOP_TYPE (IC_RIGHT (ic)) != AOP_LIT)
- emitcode ("subb", "a,%s",
- aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE, FALSE));
- else
- {
+ while (size--) {
+ if (AOP_TYPE (IC_RIGHT (ic)) != AOP_LIT) {
+ if (AOP_USESDPTR(IC_RIGHT(ic))) {
+ emitcode ("mov","b,%s",
+ aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE, NULL));
+ MOVA(aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE, NULL));
+ emitcode ("subb","a,b");
+ } else {
+ MOVA (aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE, NULL));
+ emitcode ("subb", "a,%s",
+ aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE,
+ DP2_RESULT_REG));
+ }
+ } else {
+ MOVA (aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE, NULL));
/* first add without previous c */
- if (!offset)
- emitcode ("add", "a,#0x%02x",
- (unsigned int) (lit & 0x0FFL));
- else
- emitcode ("addc", "a,#0x%02x",
- (unsigned int) ((lit >> (offset * 8)) & 0x0FFL));
- }
-
- if (pushResult)
- {
+ if (!offset) {
+ if (!size && lit==-1) {
+ emitcode ("dec", "a");
+ } else {
+ emitcode ("add", "a,#!constbyte",
+ (unsigned int) (lit & 0x0FFL));
+ }
+ } else {
+ emitcode ("addc", "a,#!constbyte",
+ (unsigned int) ((lit >> (offset * 8)) & 0x0FFL));
+ }
+ }
+
+ if (pushResult) {
emitcode ("push", "acc");
- }
- else
- {
+ } else {
aopPut (AOP (IC_RESULT (ic)), "a", offset);
- }
+ }
offset++;
- }
+ }
_endLazyDPSEvaluation ();
-
+
if (pushResult)
{
aopOp (IC_RESULT (ic), ic, TRUE, FALSE);
size = getDataSize (IC_LEFT (ic));
rSize = getDataSize (IC_RESULT (ic));
- /* If the pushed data is bigger than the result,
- * simply discard unused bytes. Icky, but works.
- *
- * Should we throw a warning here? We're losing data...
- */
- while (size > getDataSize (IC_RESULT (ic)))
- {
- emitcode (";", "discarding unused result byte.");
- emitcode ("pop", "acc");
- size--;
- offset--;
- }
- if (size < rSize)
- {
- emitcode ("clr", "a");
- /* Conversly, we haven't pushed enough here.
- * just zero-pad, and all is well.
- */
- while (size < rSize)
- {
- emitcode ("push", "acc");
- size++;
- offset++;
- }
- }
+ ADJUST_PUSHED_RESULT(size, rSize);
+ _startLazyDPSEvaluation ();
while (size--)
{
emitcode ("pop", "acc");
- aopPut (AOP (IC_RESULT (ic)), "a", --offset);
+ aopPut (AOP (IC_RESULT (ic)), "a", size);
}
+ _endLazyDPSEvaluation ();
}
adjustArithmeticResult (ic);
static void
genMultbits (operand * left,
operand * right,
- operand * result)
+ operand * result,
+ iCode * ic)
{
emitcode ("mov", "c,%s", AOP (left)->aopu.aop_dir);
emitcode ("anl", "c,%s", AOP (right)->aopu.aop_dir);
+ aopOp(result, ic, TRUE, FALSE);
outBitC (result);
}
/*-----------------------------------------------------------------*/
-/* genMultOneByte : 8*8=16 bit multiplication */
+/* genMultOneByte : 8*8=8/16 bit multiplication */
/*-----------------------------------------------------------------*/
-void catchMe() {
- emitcode(";catch","me");
-}
-
static void
genMultOneByte (operand * left,
operand * right,
- operand * result)
+ operand * result,
+ iCode * ic)
{
- sym_link *opetype = operandType (result);
+ int size;
symbol *lbl;
+ bool runtimeSign, compiletimeSign;
+ bool lUnsigned, rUnsigned;
+
- if (AOP_SIZE (result)!=2) {
- // this should never happen
- fprintf (stderr, "size!=2 in geniCodeMultOneByte\n");
- }
-
- if (SPEC_USIGN(opetype) ||
- // ignore the sign of left and right, what else can we do?
- (SPEC_USIGN(operandType(left)) &&
- SPEC_USIGN(operandType(right)))) {
- // just an unsigned 8*8=16 multiply
- emitcode ("mov", "b,%s", aopGet (AOP (right), 0, FALSE, FALSE, TRUE));
- MOVA (aopGet (AOP (left), 0, FALSE, FALSE, TRUE));
- emitcode ("mul", "ab");
- aopPut (AOP (result), "a", 0);
- aopPut (AOP (result), "b", 1);
- return;
- }
-
- // we have to do a signed multiply
-
-#if 0
- // literals ignored for now
+ /* (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;
+ emitcode (";", "swapped left and right");
+ }
/* (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;
+ /* emitcode (";", "swapped left and right"); */
+ }
+ /* if no literal, unsigned on the right: shorter code */
+ if ( AOP_TYPE (right) != AOP_LIT
+ && SPEC_USIGN (getSpec (operandType (left))))
{
operand *t = right;
right = left;
left = t;
}
-#endif
- emitcode ("mov", "ap,#0"); // can't we use some flag bit here?
- MOVA (aopGet (AOP (right), 0, FALSE, FALSE, TRUE));
- lbl=newiTempLabel(NULL);
- emitcode ("jnb", "acc.7,%05d$", lbl->key+100);
- // right side is negative, should test for litteral too
- emitcode ("inc", "ap"); // opRight is negative
- emitcode ("cpl", "a"); // 8-bit two's complement, this fails for -128
- emitcode ("inc", "a");
- emitcode ("", "%05d$:", lbl->key+100);
- emitcode ("mov", "b,a");
-
- MOVA (aopGet (AOP (left), 0, FALSE, FALSE, TRUE));
- lbl=newiTempLabel(NULL);
- emitcode ("jnb", "acc.7,%05d$", lbl->key+100);
- // left side is negative
- emitcode ("inc", "ap"); // opLeft is negative
- emitcode ("cpl", "a"); // 8-bit two's complement, this fails for -128
- emitcode ("inc", "a");
- emitcode ("", "%05d$:", lbl->key+100);
- emitcode ("mul", "ab");
+ lUnsigned = SPEC_USIGN (getSpec (operandType (left)));
+ rUnsigned = SPEC_USIGN (getSpec (operandType (right)));
+
+ if ((lUnsigned && rUnsigned)
+/* sorry, I don't know how to get size
+ without calling aopOp (result,...);
+ see Feature Request */
+ /* || size == 1 */ ) /* no, this is not a bug; with a 1 byte result there's
+ no need to take care about the signedness! */
+ {
+ /* just an unsigned 8 * 8 = 8 multiply
+ or 8u * 8u = 16u */
+ /* emitcode (";","unsigned"); */
+ emitcode ("mov", "b,%s", aopGet (AOP (right), 0, FALSE, FALSE, NULL));
+ MOVA (aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ emitcode ("mul", "ab");
- lbl=newiTempLabel(NULL);
- emitcode ("xch", "a,ap");
- emitcode ("rrc", "a");
- emitcode ("xch", "a,ap");
- emitcode ("jnc", "%05d$", lbl->key+100);
- // only ONE op was negative, we have to do a 16-bit two's complement
- emitcode ("setb", "c");
- emitcode ("cpl", "a");
- emitcode ("addc", "a,#0");
- emitcode ("push", "acc"); // lsb
- emitcode ("mov", "a,b");
- emitcode ("cpl", "a");
- emitcode ("addc", "a,#0");
- emitcode ("mov", "b,a"); // msb
- emitcode ("pop", "acc"); // lsb
+ _G.accInUse++; _G.bInUse++;
+ aopOp (result, ic, TRUE, FALSE);
+ size = AOP_SIZE (result);
+
+ if (size < 1 || size > 2)
+ {
+ /* this should never happen */
+ fprintf (stderr, "size!=1||2 (%d) in %s at line:%d \n",
+ size, __FILE__, lineno);
+ exit (1);
+ }
+
+ aopPut (AOP (result), "a", 0);
+ _G.accInUse--; _G.bInUse--;
+ if (size == 2)
+ aopPut (AOP (result), "b", 1);
+ return;
+ }
- emitcode ("", "%05d$:", lbl->key+100);
+ /* we have to do a signed multiply */
+ /* emitcode (";", "signed"); */
+
+ /* now sign adjust for both left & right */
+
+ /* let's see what's needed: */
+ /* apply negative sign during runtime */
+ runtimeSign = FALSE;
+ /* negative sign from literals */
+ compiletimeSign = FALSE;
+
+ if (!lUnsigned)
+ {
+ if (AOP_TYPE(left) == AOP_LIT)
+ {
+ /* signed literal */
+ signed char val = (char) floatFromVal (AOP (left)->aopu.aop_lit);
+ if (val < 0)
+ compiletimeSign = TRUE;
+ }
+ else
+ /* signed but not literal */
+ runtimeSign = TRUE;
+ }
+
+ if (!rUnsigned)
+ {
+ if (AOP_TYPE(right) == AOP_LIT)
+ {
+ /* signed literal */
+ signed char val = (char) floatFromVal (AOP (right)->aopu.aop_lit);
+ if (val < 0)
+ compiletimeSign ^= TRUE;
+ }
+ else
+ /* signed but not literal */
+ runtimeSign = TRUE;
+ }
+
+ /* initialize F0, which stores the runtime sign */
+ if (runtimeSign)
+ {
+ if (compiletimeSign)
+ emitcode ("setb", "F0"); /* set sign flag */
+ else
+ emitcode ("clr", "F0"); /* reset sign flag */
+ }
+
+ /* save the signs of the operands */
+ if (AOP_TYPE(right) == AOP_LIT)
+ {
+ signed char val = (char) floatFromVal (AOP (right)->aopu.aop_lit);
+
+ if (!rUnsigned && val < 0)
+ emitcode ("mov", "b,#!constbyte", -val);
+ else
+ emitcode ("mov", "b,#!constbyte", (unsigned char) val);
+ }
+ else /* ! literal */
+ {
+ if (rUnsigned) /* emitcode (";", "signed"); */
+ emitcode ("mov", "b,%s", aopGet (AOP (right), 0, FALSE, FALSE, NULL));
+ else
+ {
+ MOVA (aopGet (AOP (right), 0, FALSE, FALSE, NULL));
+ lbl = newiTempLabel (NULL);
+ emitcode ("jnb", "acc.7,!tlabel", lbl->key + 100);
+ emitcode ("cpl", "F0"); /* complement sign flag */
+ emitcode ("cpl", "a"); /* 2's complement */
+ emitcode ("inc", "a");
+ emitcode ("", "!tlabeldef", lbl->key + 100);
+ emitcode ("mov", "b,a");
+ }
+ }
+
+ if (AOP_TYPE(left) == AOP_LIT)
+ {
+ signed char val = (char) floatFromVal (AOP (left)->aopu.aop_lit);
+
+ if (!lUnsigned && val < 0)
+ emitcode ("mov", "a,#!constbyte", -val);
+ else
+ emitcode ("mov", "a,#!constbyte", (unsigned char) val);
+ }
+ else /* ! literal */
+ {
+ if (lUnsigned) /* emitcode (";", "signed"); */
+
+ emitcode ("mov", "a,%s", aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ else
+ {
+ MOVA (aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ lbl = newiTempLabel (NULL);
+ emitcode ("jnb", "acc.7,!tlabel", lbl->key + 100);
+ emitcode ("cpl", "F0"); /* complement sign flag */
+ emitcode ("cpl", "a"); /* 2's complement */
+ emitcode ("inc", "a");
+ emitcode ("", "!tlabeldef", lbl->key + 100);
+ }
+ }
+
+ /* now the multiplication */
+ emitcode ("mul", "ab");
+ _G.accInUse++;_G.bInUse++;
+ aopOp(result, ic, TRUE, FALSE);
+ size = AOP_SIZE (result);
+
+ if (size < 1 || size > 2)
+ {
+ /* this should never happen */
+ fprintf (stderr, "size!=1||2 (%d) in %s at line:%d \n",
+ size, __FILE__, lineno);
+ exit (1);
+ }
+
+ if (runtimeSign || compiletimeSign)
+ {
+ lbl = newiTempLabel (NULL);
+ if (runtimeSign)
+ emitcode ("jnb", "F0,!tlabel", lbl->key + 100);
+ emitcode ("cpl", "a"); /* lsb 2's complement */
+ if (size != 2)
+ emitcode ("inc", "a"); /* inc doesn't set carry flag */
+ else
+ {
+ emitcode ("add", "a,#1"); /* this sets carry flag */
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); /* msb 2's complement */
+ emitcode ("addc", "a,#0");
+ emitcode ("xch", "a,b");
+ }
+ emitcode ("", "!tlabeldef", lbl->key + 100);
+ }
aopPut (AOP (result), "a", 0);
- aopPut (AOP (result), "b", 1);
+ _G.accInUse--;_G.bInUse--;
+ if (size == 2)
+ aopPut (AOP (result), "b", 1);
+}
+
+/*-----------------------------------------------------------------*/
+/* genMultTwoByte - use the DS390 MAC unit to do 16*16 multiply */
+/*-----------------------------------------------------------------*/
+static void genMultTwoByte (operand *left, operand *right,
+ operand *result, iCode *ic)
+{
+ sym_link *retype = getSpec(operandType(right));
+ sym_link *letype = getSpec(operandType(left));
+ int umult = SPEC_USIGN(retype) | SPEC_USIGN(letype);
+ symbol *lbl;
+
+ if (AOP_TYPE (left) == AOP_LIT) {
+ operand *t = right;
+ right = left;
+ left = t;
+ }
+ /* save EA bit in F1 */
+ lbl = newiTempLabel(NULL);
+ emitcode ("setb","F1");
+ emitcode ("jbc","EA,!tlabel",lbl->key+100);
+ emitcode ("clr","F1");
+ emitcode("","!tlabeldef",lbl->key+100);
+
+ /* load up MB with right */
+ if (!umult) {
+ emitcode("clr","F0");
+ if (AOP_TYPE(right) == AOP_LIT) {
+ int val=(int)floatFromVal (AOP (right)->aopu.aop_lit);
+ if (val < 0) {
+ emitcode("setb","F0");
+ val = -val;
+ }
+ emitcode ("mov","mb,#!constbyte",val & 0xff);
+ emitcode ("mov","mb,#!constbyte",(val >> 8) & 0xff);
+ } else {
+ lbl = newiTempLabel(NULL);
+ emitcode ("mov","b,%s",aopGet(AOP(right),0,FALSE,FALSE,NULL));
+ emitcode ("mov","a,%s",aopGet(AOP(right),1,FALSE,FALSE,NULL));
+ emitcode ("jnb","acc.7,!tlabel",lbl->key+100);
+ emitcode ("xch", "a,b");
+ emitcode ("cpl","a");
+ emitcode ("add", "a,#1");
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); // msb
+ emitcode ("addc", "a,#0");
+ emitcode ("setb","F0");
+ emitcode ("","!tlabeldef",lbl->key+100);
+ emitcode ("mov","mb,b");
+ emitcode ("mov","mb,a");
+ }
+ } else {
+ emitcode ("mov","mb,%s",aopGet(AOP(right),0,FALSE,FALSE,NULL));
+ emitcode ("mov","mb,%s",aopGet(AOP(right),1,FALSE,FALSE,NULL));
+ }
+ /* load up MA with left */
+ if (!umult) {
+ lbl = newiTempLabel(NULL);
+ emitcode ("mov","b,%s",aopGet(AOP(left),0,FALSE,FALSE,NULL));
+ emitcode ("mov","a,%s",aopGet(AOP(left),1,FALSE,FALSE,NULL));
+ emitcode ("jnb","acc.7,!tlabel",lbl->key+100);
+ emitcode ("xch", "a,b");
+ emitcode ("cpl","a");
+ emitcode ("add", "a,#1");
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); // msb
+ emitcode ("addc","a,#0");
+ emitcode ("jbc","F0,!tlabel",lbl->key+100);
+ emitcode ("setb","F0");
+ emitcode ("","!tlabeldef",lbl->key+100);
+ emitcode ("mov","ma,b");
+ emitcode ("mov","ma,a");
+ } else {
+ emitcode ("mov","ma,%s",aopGet(AOP(left),0,FALSE,FALSE,NULL));
+ emitcode ("mov","ma,%s",aopGet(AOP(left),1,FALSE,FALSE,NULL));
+ }
+ /* wait for multiplication to finish */
+ lbl = newiTempLabel(NULL);
+ emitcode("","!tlabeldef", lbl->key+100);
+ emitcode("mov","a,mcnt1");
+ emitcode("anl","a,#!constbyte",0x80);
+ emitcode("jnz","!tlabel",lbl->key+100);
+
+ freeAsmop (left, NULL, ic, TRUE);
+ freeAsmop (right, NULL, ic,TRUE);
+ aopOp(result, ic, TRUE, FALSE);
+
+ /* if unsigned then simple */
+ if (umult) {
+ emitcode ("mov","a,ma");
+ if (AOP_SIZE(result) >= 4) aopPut(AOP(result),"a",3);
+ emitcode ("mov","a,ma");
+ if (AOP_SIZE(result) >= 3) aopPut(AOP(result),"a",2);
+ aopPut(AOP(result),"ma",1);
+ aopPut(AOP(result),"ma",0);
+ } else {
+ emitcode("push","ma");
+ emitcode("push","ma");
+ emitcode("push","ma");
+ MOVA("ma");
+ /* negate result if needed */
+ lbl = newiTempLabel(NULL);
+ emitcode("jnb","F0,!tlabel",lbl->key+100);
+ emitcode("cpl","a");
+ emitcode("add","a,#1");
+ emitcode("","!tlabeldef", lbl->key+100);
+ if (AOP_TYPE(result) == AOP_ACC)
+ {
+ D(emitcode(";", "ACC special case."););
+ /* We know result is the only live aop, and
+ * it's obviously not a DPTR2, so AP is available.
+ */
+ emitcode("mov", "%s,acc", DP2_RESULT_REG);
+ }
+ else
+ {
+ aopPut(AOP(result),"a",0);
+ }
+
+ emitcode("pop","acc");
+ lbl = newiTempLabel(NULL);
+ emitcode("jnb","F0,!tlabel",lbl->key+100);
+ emitcode("cpl","a");
+ emitcode("addc","a,#0");
+ emitcode("","!tlabeldef", lbl->key+100);
+ aopPut(AOP(result),"a",1);
+ emitcode("pop","acc");
+ if (AOP_SIZE(result) >= 3) {
+ lbl = newiTempLabel(NULL);
+ emitcode("jnb","F0,!tlabel",lbl->key+100);
+ emitcode("cpl","a");
+ emitcode("addc","a,#0");
+ emitcode("","!tlabeldef", lbl->key+100);
+ aopPut(AOP(result),"a",2);
+ }
+ emitcode("pop","acc");
+ if (AOP_SIZE(result) >= 4) {
+ lbl = newiTempLabel(NULL);
+ emitcode("jnb","F0,!tlabel",lbl->key+100);
+ emitcode("cpl","a");
+ emitcode("addc","a,#0");
+ emitcode("","!tlabeldef", lbl->key+100);
+ aopPut(AOP(result),"a",3);
+ }
+ if (AOP_TYPE(result) == AOP_ACC)
+ {
+ /* We stashed the result away above. */
+ emitcode("mov", "acc,%s", DP2_RESULT_REG);
+ }
+
+ }
+ freeAsmop (result, NULL, ic, TRUE);
+
+ /* restore EA bit in F1 */
+ lbl = newiTempLabel(NULL);
+ emitcode ("jnb","F1,!tlabel",lbl->key+100);
+ emitcode ("setb","EA");
+ emitcode("","!tlabeldef",lbl->key+100);
+ return ;
}
/*-----------------------------------------------------------------*/
operand *right = IC_RIGHT (ic);
operand *result = IC_RESULT (ic);
- D (emitcode (";", "genMult ");
- );
+ D (emitcode (";", "genMult "););
/* assign the amsops */
- AOP_OP_3 (ic);
+ AOP_OP_2 (ic);
/* special cases first */
/* both are bits */
if (AOP_TYPE (left) == AOP_CRY &&
AOP_TYPE (right) == AOP_CRY)
{
- genMultbits (left, right, result);
+ genMultbits (left, right, result, ic);
goto release;
}
if (AOP_SIZE (left) == 1 &&
AOP_SIZE (right) == 1)
{
- genMultOneByte (left, right, result);
+ genMultOneByte (left, right, result, ic);
goto release;
}
+ if (AOP_SIZE (left) == 2 && AOP_SIZE(right) == 2) {
+ /* use the ds390 ARITHMETIC accel UNIT */
+ genMultTwoByte (left, right, result, ic);
+ return ;
+ }
/* should have been converted to function call */
- assert (1);
+ assert (0);
release:
freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
static void
genDivbits (operand * left,
operand * right,
- operand * result)
+ operand * result,
+ iCode * ic)
{
char *l;
LOAD_AB_FOR_DIV (left, right, l);
emitcode ("div", "ab");
emitcode ("rrc", "a");
+ aopOp(result, ic, TRUE, FALSE);
+
aopPut (AOP (result), "c", 0);
}
static void
genDivOneByte (operand * left,
operand * right,
- operand * result)
+ operand * result,
+ iCode * ic)
{
- sym_link *opetype = operandType (result);
+ bool lUnsigned, rUnsigned;
+ bool runtimeSign, compiletimeSign;
char *l;
symbol *lbl;
int size, offset;
- size = AOP_SIZE (result) - 1;
offset = 1;
+ lUnsigned = SPEC_USIGN (getSpec (operandType (left)));
+ rUnsigned = SPEC_USIGN (getSpec (operandType (right)));
+
/* signed or unsigned */
- if (SPEC_USIGN (opetype))
+ if (lUnsigned && rUnsigned)
{
/* unsigned is easy */
LOAD_AB_FOR_DIV (left, right, l);
emitcode ("div", "ab");
+
+ _G.accInUse++;
+ aopOp (result, ic, TRUE, FALSE);
aopPut (AOP (result), "a", 0);
+ _G.accInUse--;
+
+ size = AOP_SIZE (result) - 1;
+
while (size--)
aopPut (AOP (result), zero, offset++);
return;
/* signed is a little bit more difficult */
- /* save the signs of the operands */
- l = aopGet (AOP (left), 0, FALSE, FALSE, TRUE);
- MOVA (l);
- emitcode ("xrl", "a,%s", aopGet (AOP (right), 0, FALSE, TRUE, FALSE));
- emitcode ("push", "acc"); /* save it on the stack */
-
/* now sign adjust for both left & right */
- l = aopGet (AOP (right), 0, FALSE, FALSE, TRUE);
- MOVA (l);
- lbl = newiTempLabel (NULL);
- emitcode ("jnb", "acc.7,%05d$", (lbl->key + 100));
- emitcode ("cpl", "a");
- emitcode ("inc", "a");
- emitcode ("", "%05d$:", (lbl->key + 100));
- emitcode ("mov", "b,a");
- /* sign adjust left side */
- l = aopGet (AOP (left), 0, FALSE, FALSE, TRUE);
- MOVA (l);
+ /* let's see what's needed: */
+ /* apply negative sign during runtime */
+ runtimeSign = FALSE;
+ /* negative sign from literals */
+ compiletimeSign = FALSE;
+
+ if (!lUnsigned)
+ {
+ if (AOP_TYPE(left) == AOP_LIT)
+ {
+ /* signed literal */
+ signed char val = (char) floatFromVal (AOP (left)->aopu.aop_lit);
+ if (val < 0)
+ compiletimeSign = TRUE;
+ }
+ else
+ /* signed but not literal */
+ runtimeSign = TRUE;
+ }
- lbl = newiTempLabel (NULL);
- emitcode ("jnb", "acc.7,%05d$", (lbl->key + 100));
- emitcode ("cpl", "a");
- emitcode ("inc", "a");
- emitcode ("", "%05d$:", (lbl->key + 100));
+ if (!rUnsigned)
+ {
+ if (AOP_TYPE(right) == AOP_LIT)
+ {
+ /* signed literal */
+ signed char val = (char) floatFromVal (AOP (right)->aopu.aop_lit);
+ if (val < 0)
+ compiletimeSign ^= TRUE;
+ }
+ else
+ /* signed but not literal */
+ runtimeSign = TRUE;
+ }
+
+ /* initialize F0, which stores the runtime sign */
+ if (runtimeSign)
+ {
+ if (compiletimeSign)
+ emitcode ("setb", "F0"); /* set sign flag */
+ else
+ emitcode ("clr", "F0"); /* reset sign flag */
+ }
+
+ /* save the signs of the operands */
+ if (AOP_TYPE(right) == AOP_LIT)
+ {
+ signed char val = (char) floatFromVal (AOP (right)->aopu.aop_lit);
+
+ if (!rUnsigned && val < 0)
+ emitcode ("mov", "b,#0x%02x", -val);
+ else
+ emitcode ("mov", "b,#0x%02x", (unsigned char) val);
+ }
+ else /* ! literal */
+ {
+ if (rUnsigned)
+ emitcode ("mov", "b,%s", aopGet (AOP (right), 0, FALSE, FALSE, NULL));
+ else
+ {
+ MOVA (aopGet (AOP (right), 0, FALSE, FALSE, NULL));
+ lbl = newiTempLabel (NULL);
+ emitcode ("jnb", "acc.7,!tlabel", lbl->key + 100);
+ emitcode ("cpl", "F0"); /* complement sign flag */
+ emitcode ("cpl", "a"); /* 2's complement */
+ emitcode ("inc", "a");
+ emitcode ("", "!tlabeldef", lbl->key + 100);
+ emitcode ("mov", "b,a");
+ }
+ }
+
+ if (AOP_TYPE(left) == AOP_LIT)
+ {
+ signed char val = (char) floatFromVal (AOP (left)->aopu.aop_lit);
+ if (!lUnsigned && val < 0)
+ emitcode ("mov", "a,#0x%02x", -val);
+ else
+ emitcode ("mov", "a,#0x%02x", (unsigned char) val);
+ }
+ else /* ! literal */
+ {
+ if (lUnsigned)
+ emitcode ("mov", "a,%s", aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ else
+ {
+ MOVA (aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ lbl = newiTempLabel (NULL);
+ emitcode ("jnb", "acc.7,!tlabel", lbl->key + 100);
+ emitcode ("cpl", "F0"); /* complement sign flag */
+ emitcode ("cpl", "a"); /* 2's complement */
+ emitcode ("inc", "a");
+ emitcode ("", "!tlabeldef", lbl->key + 100);
+ }
+ }
+
/* now the division */
emitcode ("nop", "; workaround for DS80C390 div bug.");
emitcode ("div", "ab");
- /* we are interested in the lower order
- only */
- emitcode ("mov", "b,a");
- lbl = newiTempLabel (NULL);
- emitcode ("pop", "acc");
- /* if there was an over flow we don't
- adjust the sign of the result */
- emitcode ("jb", "ov,%05d$", (lbl->key + 100));
- emitcode ("jnb", "acc.7,%05d$", (lbl->key + 100));
- CLRC;
- emitcode ("clr", "a");
- emitcode ("subb", "a,b");
- emitcode ("mov", "b,a");
- emitcode ("", "%05d$:", (lbl->key + 100));
+
+ if (runtimeSign || compiletimeSign)
+ {
+ lbl = newiTempLabel (NULL);
+ if (runtimeSign)
+ emitcode ("jnb", "F0,!tlabel", lbl->key + 100);
+ emitcode ("cpl", "a"); /* lsb 2's complement */
+ emitcode ("inc", "a");
+ emitcode ("", "!tlabeldef", lbl->key + 100);
- /* now we are done */
- aopPut (AOP (result), "b", 0);
- if (size > 0)
+ _G.accInUse++; _G.bInUse++;
+ aopOp (result, ic, TRUE, FALSE);
+ size = AOP_SIZE (result) - 1;
+
+ if (size > 0)
+ {
+ /* 123 look strange, but if (OP_SYMBOL (op)->accuse == 1)
+ then the result will be in b, a */
+ emitcode ("mov", "b,a"); /* 1 */
+ /* msb is 0x00 or 0xff depending on the sign */
+ if (runtimeSign)
+ {
+ emitcode ("mov", "c,F0");
+ emitcode ("subb", "a,acc");
+ emitcode ("xch", "a,b"); /* 2 */
+ while (size--)
+ aopPut (AOP (result), "b", offset++); /* write msb's */
+ }
+ else /* compiletimeSign */
+ while (size--)
+ aopPut (AOP (result), "#0xff", offset++); /* write msb's */
+ }
+ aopPut (AOP (result), "a", 0); /* 3: write lsb */
+ }
+ else
{
- emitcode ("mov", "c,b.7");
- emitcode ("subb", "a,acc");
+ _G.accInUse++; _G.bInUse++;
+ aopOp(result, ic, TRUE, FALSE);
+ size = AOP_SIZE (result) - 1;
+
+ aopPut (AOP (result), "a", 0);
+ while (size--)
+ aopPut (AOP (result), zero, offset++);
}
- while (size--)
- aopPut (AOP (result), "a", offset++);
-
+ _G.accInUse--; _G.bInUse--;
+
+}
+
+/*-----------------------------------------------------------------*/
+/* genDivTwoByte - use the DS390 MAC unit to do 16/16 divide */
+/*-----------------------------------------------------------------*/
+static void genDivTwoByte (operand *left, operand *right,
+ operand *result, iCode *ic)
+{
+ sym_link *retype = getSpec(operandType(right));
+ sym_link *letype = getSpec(operandType(left));
+ int umult = SPEC_USIGN(retype) | SPEC_USIGN(letype);
+ symbol *lbl;
+
+ /* save EA bit in F1 */
+ lbl = newiTempLabel(NULL);
+ emitcode ("setb","F1");
+ emitcode ("jbc","EA,!tlabel",lbl->key+100);
+ emitcode ("clr","F1");
+ emitcode("","!tlabeldef",lbl->key+100);
+
+ /* load up MA with left */
+ if (!umult) {
+ emitcode("clr","F0");
+ lbl = newiTempLabel(NULL);
+ emitcode ("mov","b,%s",aopGet(AOP(left),0,FALSE,FALSE,NULL));
+ emitcode ("mov","a,%s",aopGet(AOP(left),1,FALSE,FALSE,NULL));
+ emitcode ("jnb","acc.7,!tlabel",lbl->key+100);
+ emitcode ("xch", "a,b");
+ emitcode ("cpl","a");
+ emitcode ("add", "a,#1");
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); // msb
+ emitcode ("addc","a,#0");
+ emitcode ("setb","F0");
+ emitcode ("","!tlabeldef",lbl->key+100);
+ emitcode ("mov","ma,b");
+ emitcode ("mov","ma,a");
+ } else {
+ emitcode ("mov","ma,%s",aopGet(AOP(left),0,FALSE,FALSE,NULL));
+ emitcode ("mov","ma,%s",aopGet(AOP(left),1,FALSE,FALSE,NULL));
+ }
+
+ /* load up MB with right */
+ if (!umult) {
+ if (AOP_TYPE(right) == AOP_LIT) {
+ int val=(int)floatFromVal (AOP (right)->aopu.aop_lit);
+ if (val < 0) {
+ lbl = newiTempLabel(NULL);
+ emitcode ("jbc","F0,!tlabel",lbl->key+100);
+ emitcode("setb","F0");
+ emitcode ("","!tlabeldef",lbl->key+100);
+ val = -val;
+ }
+ emitcode ("mov","mb,#!constbyte",val & 0xff);
+ emitcode ("mov","mb,#!constbyte",(val >> 8) & 0xff);
+ } else {
+ lbl = newiTempLabel(NULL);
+ emitcode ("mov","b,%s",aopGet(AOP(right),0,FALSE,FALSE,NULL));
+ emitcode ("mov","a,%s",aopGet(AOP(right),1,FALSE,FALSE,NULL));
+ emitcode ("jnb","acc.7,!tlabel",lbl->key+100);
+ emitcode ("xch", "a,b");
+ emitcode ("cpl","a");
+ emitcode ("add", "a,#1");
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); // msb
+ emitcode ("addc", "a,#0");
+ emitcode ("jbc","F0,!tlabel",lbl->key+100);
+ emitcode ("setb","F0");
+ emitcode ("","!tlabeldef",lbl->key+100);
+ emitcode ("mov","mb,b");
+ emitcode ("mov","mb,a");
+ }
+ } else {
+ emitcode ("mov","mb,%s",aopGet(AOP(right),0,FALSE,FALSE,NULL));
+ emitcode ("mov","mb,%s",aopGet(AOP(right),1,FALSE,FALSE,NULL));
+ }
+
+ /* wait for multiplication to finish */
+ lbl = newiTempLabel(NULL);
+ emitcode("","!tlabeldef", lbl->key+100);
+ emitcode("mov","a,mcnt1");
+ emitcode("anl","a,#!constbyte",0x80);
+ emitcode("jnz","!tlabel",lbl->key+100);
+
+ freeAsmop (left, NULL, ic, TRUE);
+ freeAsmop (right, NULL, ic,TRUE);
+ aopOp(result, ic, TRUE, FALSE);
+
+ /* if unsigned then simple */
+ if (umult) {
+ aopPut(AOP(result),"ma",1);
+ aopPut(AOP(result),"ma",0);
+ } else {
+ emitcode("push","ma");
+ MOVA("ma");
+ /* negate result if needed */
+ lbl = newiTempLabel(NULL);
+ emitcode("jnb","F0,!tlabel",lbl->key+100);
+ emitcode("cpl","a");
+ emitcode("add","a,#1");
+ emitcode("","!tlabeldef", lbl->key+100);
+ aopPut(AOP(result),"a",0);
+ emitcode("pop","acc");
+ lbl = newiTempLabel(NULL);
+ emitcode("jnb","F0,!tlabel",lbl->key+100);
+ emitcode("cpl","a");
+ emitcode("addc","a,#0");
+ emitcode("","!tlabeldef", lbl->key+100);
+ aopPut(AOP(result),"a",1);
+ }
+ freeAsmop (result, NULL, ic, TRUE);
+ /* restore EA bit in F1 */
+ lbl = newiTempLabel(NULL);
+ emitcode ("jnb","F1,!tlabel",lbl->key+100);
+ emitcode ("setb","EA");
+ emitcode("","!tlabeldef",lbl->key+100);
+ return ;
}
/*-----------------------------------------------------------------*/
operand *right = IC_RIGHT (ic);
operand *result = IC_RESULT (ic);
- D (emitcode (";", "genDiv ");
- );
+ D (emitcode (";", "genDiv "););
/* assign the amsops */
- AOP_OP_3 (ic);
+ AOP_OP_2 (ic);
/* special cases first */
/* both are bits */
if (AOP_TYPE (left) == AOP_CRY &&
AOP_TYPE (right) == AOP_CRY)
{
- genDivbits (left, right, result);
+ genDivbits (left, right, result, ic);
goto release;
}
if (AOP_SIZE (left) == 1 &&
AOP_SIZE (right) == 1)
{
- genDivOneByte (left, right, result);
+ genDivOneByte (left, right, result, ic);
goto release;
}
+ if (AOP_SIZE (left) == 2 && AOP_SIZE(right) == 2) {
+ /* use the ds390 ARITHMETIC accel UNIT */
+ genDivTwoByte (left, right, result, ic);
+ return ;
+ }
/* should have been converted to function call */
- assert (1);
+ assert (0);
release:
freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
freeAsmop (right, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
static void
genModbits (operand * left,
operand * right,
- operand * result)
+ operand * result,
+ iCode * ic)
{
char *l;
emitcode ("div", "ab");
emitcode ("mov", "a,b");
emitcode ("rrc", "a");
+ aopOp(result, ic, TRUE, FALSE);
aopPut (AOP (result), "c", 0);
}
static void
genModOneByte (operand * left,
operand * right,
- operand * result)
+ operand * result,
+ iCode * ic)
{
- sym_link *opetype = operandType (result);
+ bool lUnsigned, rUnsigned;
+ bool runtimeSign, compiletimeSign;
char *l;
symbol *lbl;
+ int size, offset;
+ offset = 1;
+ lUnsigned = SPEC_USIGN (getSpec (operandType (left)));
+ rUnsigned = SPEC_USIGN (getSpec (operandType (right)));
+
/* signed or unsigned */
- if (SPEC_USIGN (opetype))
+ if (lUnsigned && rUnsigned)
{
/* unsigned is easy */
LOAD_AB_FOR_DIV (left, right, l);
emitcode ("div", "ab");
+ aopOp (result, ic, TRUE, FALSE);
aopPut (AOP (result), "b", 0);
+
+ for (size = AOP_SIZE (result) - 1; size--;)
+ aopPut (AOP (result), zero, offset++);
return;
}
/* signed is a little bit more difficult */
- /* save the signs of the operands */
- l = aopGet (AOP (left), 0, FALSE, FALSE, TRUE);
- MOVA (l);
-
- emitcode ("xrl", "a,%s", aopGet (AOP (right), 0, FALSE, FALSE, FALSE));
- emitcode ("push", "acc"); /* save it on the stack */
-
/* now sign adjust for both left & right */
- l = aopGet (AOP (right), 0, FALSE, FALSE, TRUE);
- MOVA (l);
- lbl = newiTempLabel (NULL);
- emitcode ("jnb", "acc.7,%05d$", (lbl->key + 100));
- emitcode ("cpl", "a");
- emitcode ("inc", "a");
- emitcode ("", "%05d$:", (lbl->key + 100));
- emitcode ("mov", "b,a");
+ /* modulus: sign of the right operand has no influence on the result! */
+ if (AOP_TYPE(right) == AOP_LIT)
+ {
+ signed char val = (char) floatFromVal (AOP (right)->aopu.aop_lit);
- /* sign adjust left side */
- l = aopGet (AOP (left), 0, FALSE, FALSE, TRUE);
- MOVA (l);
+ if (!rUnsigned && val < 0)
+ emitcode ("mov", "b,#0x%02x", -val);
+ else
+ emitcode ("mov", "b,#0x%02x", (unsigned char) val);
+ }
+ else /* ! literal */
+ {
+ if (rUnsigned)
+ emitcode ("mov", "b,%s", aopGet (AOP (right), 0, FALSE, FALSE, NULL));
+ else
+ {
+ MOVA (aopGet (AOP (right), 0, FALSE, FALSE, NULL));
+ lbl = newiTempLabel (NULL);
+ emitcode ("jnb", "acc.7,!tlabel", lbl->key + 100);
+ emitcode ("cpl", "a"); /* 2's complement */
+ emitcode ("inc", "a");
+ emitcode ("", "!tlabeldef", lbl->key + 100);
+ emitcode ("mov", "b,a");
+ }
+ }
+
+ /* let's see what's needed: */
+ /* apply negative sign during runtime */
+ runtimeSign = FALSE;
+ /* negative sign from literals */
+ compiletimeSign = FALSE;
- lbl = newiTempLabel (NULL);
- emitcode ("jnb", "acc.7,%05d$", (lbl->key + 100));
- emitcode ("cpl", "a");
- emitcode ("inc", "a");
- emitcode ("", "%05d$:", (lbl->key + 100));
+ /* sign adjust left side */
+ if (AOP_TYPE(left) == AOP_LIT)
+ {
+ signed char val = (char) floatFromVal (AOP (left)->aopu.aop_lit);
- /* now the multiplication */
+ if (!lUnsigned && val < 0)
+ {
+ compiletimeSign = TRUE; /* set sign flag */
+ emitcode ("mov", "a,#0x%02x", -val);
+ }
+ else
+ emitcode ("mov", "a,#0x%02x", (unsigned char) val);
+ }
+ else /* ! literal */
+ {
+ MOVA (aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+
+ if (!lUnsigned)
+ {
+ runtimeSign = TRUE;
+ emitcode ("clr", "F0"); /* clear sign flag */
+
+ lbl = newiTempLabel (NULL);
+ emitcode ("jnb", "acc.7,!tlabel", lbl->key + 100);
+ emitcode ("setb", "F0"); /* set sign flag */
+ emitcode ("cpl", "a"); /* 2's complement */
+ emitcode ("inc", "a");
+ emitcode ("", "!tlabeldef", lbl->key + 100);
+ }
+ }
+
+ /* now the modulus */
emitcode ("nop", "; workaround for DS80C390 div bug.");
emitcode ("div", "ab");
- /* we are interested in the lower order
- only */
- lbl = newiTempLabel (NULL);
- emitcode ("pop", "acc");
- /* if there was an over flow we don't
- adjust the sign of the result */
- emitcode ("jb", "ov,%05d$", (lbl->key + 100));
- emitcode ("jnb", "acc.7,%05d$", (lbl->key + 100));
- CLRC;
- emitcode ("clr", "a");
- emitcode ("subb", "a,b");
- emitcode ("mov", "b,a");
- emitcode ("", "%05d$:", (lbl->key + 100));
+
+ if (runtimeSign || compiletimeSign)
+ {
+ emitcode ("mov", "a,b");
+ lbl = newiTempLabel (NULL);
+ if (runtimeSign)
+ emitcode ("jnb", "F0,!tlabel", lbl->key + 100);
+ emitcode ("cpl", "a"); /* lsb 2's complement */
+ emitcode ("inc", "a");
+ emitcode ("", "!tlabeldef", lbl->key + 100);
+
+ _G.accInUse++; _G.bInUse++;
+ aopOp (result, ic, TRUE, FALSE);
+ size = AOP_SIZE (result) - 1;
+
+ if (size > 0)
+ {
+ /* 123 look strange, but if (OP_SYMBOL (op)->accuse == 1)
+ then the result will be in b, a */
+ emitcode ("mov", "b,a"); /* 1 */
+ /* msb is 0x00 or 0xff depending on the sign */
+ if (runtimeSign)
+ {
+ emitcode ("mov", "c,F0");
+ emitcode ("subb", "a,acc");
+ emitcode ("xch", "a,b"); /* 2 */
+ while (size--)
+ aopPut (AOP (result), "b", offset++); /* write msb's */
+ }
+ else /* compiletimeSign */
+ while (size--)
+ aopPut (AOP (result), "#0xff", offset++); /* write msb's */
+ }
+ aopPut (AOP (result), "a", 0); /* 3: write lsb */
+ }
+ else
+ {
+ _G.accInUse++; _G.bInUse++;
+ aopOp(result, ic, TRUE, FALSE);
+ size = AOP_SIZE (result) - 1;
+
+ aopPut (AOP (result), "b", 0);
+ while (size--)
+ aopPut (AOP (result), zero, offset++);
+ }
+ _G.accInUse--; _G.bInUse--;
+
+}
+
+/*-----------------------------------------------------------------*/
+/* genModTwoByte - use the DS390 MAC unit to do 16%16 modulus */
+/*-----------------------------------------------------------------*/
+static void genModTwoByte (operand *left, operand *right,
+ operand *result, iCode *ic)
+{
+ sym_link *retype = getSpec(operandType(right));
+ sym_link *letype = getSpec(operandType(left));
+ int umult = SPEC_USIGN(retype) | SPEC_USIGN(letype);
+ symbol *lbl;
+
+ /* load up MA with left */
+ /* save EA bit in F1 */
+ lbl = newiTempLabel(NULL);
+ emitcode ("setb","F1");
+ emitcode ("jbc","EA,!tlabel",lbl->key+100);
+ emitcode ("clr","F1");
+ emitcode("","!tlabeldef",lbl->key+100);
+
+ if (!umult) {
+ lbl = newiTempLabel(NULL);
+ emitcode ("mov","b,%s",aopGet(AOP(left),0,FALSE,FALSE,NULL));
+ emitcode ("mov","a,%s",aopGet(AOP(left),1,FALSE,FALSE,NULL));
+ emitcode ("jnb","acc.7,!tlabel",lbl->key+100);
+ emitcode ("xch", "a,b");
+ emitcode ("cpl","a");
+ emitcode ("add", "a,#1");
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); // msb
+ emitcode ("addc","a,#0");
+ emitcode ("","!tlabeldef",lbl->key+100);
+ emitcode ("mov","ma,b");
+ emitcode ("mov","ma,a");
+ } else {
+ emitcode ("mov","ma,%s",aopGet(AOP(left),0,FALSE,FALSE,NULL));
+ emitcode ("mov","ma,%s",aopGet(AOP(left),1,FALSE,FALSE,NULL));
+ }
+
+ /* load up MB with right */
+ if (!umult) {
+ if (AOP_TYPE(right) == AOP_LIT) {
+ int val=(int)floatFromVal (AOP (right)->aopu.aop_lit);
+ if (val < 0) {
+ val = -val;
+ }
+ emitcode ("mov","mb,#!constbyte",val & 0xff);
+ emitcode ("mov","mb,#!constbyte",(val >> 8) & 0xff);
+ } else {
+ lbl = newiTempLabel(NULL);
+ emitcode ("mov","b,%s",aopGet(AOP(right),0,FALSE,FALSE,NULL));
+ emitcode ("mov","a,%s",aopGet(AOP(right),1,FALSE,FALSE,NULL));
+ emitcode ("jnb","acc.7,!tlabel",lbl->key+100);
+ emitcode ("xch", "a,b");
+ emitcode ("cpl","a");
+ emitcode ("add", "a,#1");
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); // msb
+ emitcode ("addc", "a,#0");
+ emitcode ("","!tlabeldef",lbl->key+100);
+ emitcode ("mov","mb,b");
+ emitcode ("mov","mb,a");
+ }
+ } else {
+ emitcode ("mov","mb,%s",aopGet(AOP(right),0,FALSE,FALSE,NULL));
+ emitcode ("mov","mb,%s",aopGet(AOP(right),1,FALSE,FALSE,NULL));
+ }
- /* now we are done */
- aopPut (AOP (result), "b", 0);
+ /* wait for multiplication to finish */
+ lbl = newiTempLabel(NULL);
+ emitcode("","!tlabeldef", lbl->key+100);
+ emitcode("mov","a,mcnt1");
+ emitcode("anl","a,#!constbyte",0x80);
+ emitcode("jnz","!tlabel",lbl->key+100);
+
+ freeAsmop (left, NULL, ic, TRUE);
+ freeAsmop (right, NULL, ic,TRUE);
+ aopOp(result, ic, TRUE, FALSE);
+ aopPut(AOP(result),"mb",1);
+ aopPut(AOP(result),"mb",0);
+ freeAsmop (result, NULL, ic, TRUE);
+
+ /* restore EA bit in F1 */
+ lbl = newiTempLabel(NULL);
+ emitcode ("jnb","F1,!tlabel",lbl->key+100);
+ emitcode ("setb","EA");
+ emitcode("","!tlabeldef",lbl->key+100);
+ return ;
}
/*-----------------------------------------------------------------*/
operand *right = IC_RIGHT (ic);
operand *result = IC_RESULT (ic);
- D (emitcode (";", "genMod ");
- );
+ D (emitcode (";", "genMod "); );
/* assign the amsops */
- AOP_OP_3 (ic);
+ AOP_OP_2 (ic);
/* special cases first */
/* both are bits */
if (AOP_TYPE (left) == AOP_CRY &&
AOP_TYPE (right) == AOP_CRY)
{
- genModbits (left, right, result);
+ genModbits (left, right, result, ic);
goto release;
}
if (AOP_SIZE (left) == 1 &&
AOP_SIZE (right) == 1)
{
- genModOneByte (left, right, result);
+ genModOneByte (left, right, result, ic);
goto release;
}
+ if (AOP_SIZE (left) == 2 && AOP_SIZE(right) == 2) {
+ /* use the ds390 ARITHMETIC accel UNIT */
+ genModTwoByte (left, right, result, ic);
+ return ;
+ }
+
/* should have been converted to function call */
- assert (1);
+ assert (0);
release:
freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
symbol *tlbl = newiTempLabel (NULL);
char *inst;
- D (emitcode (";", "genIfxJump ");
- );
+ D (emitcode (";", "genIfxJump"););
/* if true label then we jump if condition
supplied is true */
(strcmp (jval, "c") == 0 ? "jc" : "jb")));
}
if (strcmp (inst, "jb") == 0 || strcmp (inst, "jnb") == 0)
- emitcode (inst, "%s,%05d$", jval, (tlbl->key + 100));
+ emitcode (inst, "%s,!tlabel", jval, (tlbl->key + 100));
else
- emitcode (inst, "%05d$", tlbl->key + 100);
- emitcode ("ljmp", "%05d$", jlbl->key + 100);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode (inst, "!tlabel", tlbl->key + 100);
+ emitcode ("ljmp", "!tlabel", jlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
/* mark the icode as generated */
ic->generated = 1;
unsigned long lit = 0L;
operand *result;
- D (emitcode (";", "genCmp");
- );
+ D (emitcode (";", "genCmp"););
result = IC_RESULT (ic);
AOP_TYPE (right) == AOP_CRY)
{
emitcode ("mov", "c,%s", AOP (right)->aopu.aop_dir);
- emitcode ("anl", "c,/%s", AOP (left)->aopu.aop_dir);
+ emitcode ("anl", "c,%s", AOP (left)->aopu.aop_dir);
}
else
{
size = max (AOP_SIZE (left), AOP_SIZE (right));
/* if unsigned char cmp with lit, do cjne left,#right,zz */
- if ((size == 1) && !sign &&
- (AOP_TYPE (right) == AOP_LIT && AOP_TYPE (left) != AOP_DIR))
+ if ((size == 1) && !sign
+ && (AOP_TYPE (right) == AOP_LIT && AOP_TYPE (left) != AOP_DIR && AOP_TYPE (left) != AOP_STR))
{
symbol *lbl = newiTempLabel (NULL);
- emitcode ("cjne", "%s,%s,%05d$",
- aopGet (AOP (left), offset, FALSE, FALSE, FALSE),
- aopGet (AOP (right), offset, FALSE, FALSE, FALSE),
+ emitcode ("cjne", "%s,%s,!tlabel",
+ aopGet (AOP (left), offset, FALSE, FALSE, NULL),
+ aopGet (AOP (right), offset, FALSE, FALSE, NULL),
lbl->key + 100);
- emitcode ("", "%05d$:", lbl->key + 100);
+ emitcode ("", "!tlabeldef", lbl->key + 100);
}
else
{
}
else
{
- MOVA (aopGet (AOP (left), AOP_SIZE (left) - 1, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (left), AOP_SIZE (left) - 1, FALSE, FALSE, NULL));
freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
freeAsmop (right, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
CLRC;
while (size--)
{
- emitcode (";", "genCmp #1: %d/%d/%d", size, sign, offset);
- MOVA (aopGet (AOP (left), offset, FALSE, FALSE, TRUE));
- emitcode (";", "genCmp #2");
+ // emitcode (";", "genCmp #1: %d/%d/%d", size, sign, offset);
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
+ // emitcode (";", "genCmp #2");
if (sign && (size == 0))
{
- emitcode (";", "genCmp #3");
- emitcode ("xrl", "a,#0x80");
+ // emitcode (";", "genCmp #3");
+ emitcode ("xrl", "a,#!constbyte",0x80);
if (AOP_TYPE (right) == AOP_LIT)
{
unsigned long lit = (unsigned long)
floatFromVal (AOP (right)->aopu.aop_lit);
- emitcode (";", "genCmp #3.1");
- emitcode ("subb", "a,#0x%02x",
+ // emitcode (";", "genCmp #3.1");
+ emitcode ("subb", "a,#!constbyte",
0x80 ^ (unsigned int) ((lit >> (offset * 8)) & 0x0FFL));
}
else
{
- emitcode (";", "genCmp #3.2");
- if (AOP_NEEDSACC (right))
- {
- emitcode ("push", "acc");
- }
- emitcode ("mov", "b,%s", aopGet (AOP (right), offset++,
- FALSE, FALSE, FALSE));
- emitcode ("xrl", "b,#0x80");
- if (AOP_NEEDSACC (right))
- {
- emitcode ("pop", "acc");
- }
+ // emitcode (";", "genCmp #3.2");
+ saveAccWarn = 0;
+ MOVB(aopGet (AOP (right), offset++, FALSE, FALSE, "b"));
+ saveAccWarn = DEFAULT_ACC_WARNING;
+ emitcode ("xrl", "b,#!constbyte",0x80);
emitcode ("subb", "a,b");
}
}
{
const char *s;
- emitcode (";", "genCmp #4");
- if (AOP_NEEDSACC (right))
- {
- /* Yuck!! */
- emitcode (";", "genCmp #4.1");
- emitcode ("xch", "a, b");
- MOVA (aopGet (AOP (right), offset++, FALSE, FALSE, TRUE));
- emitcode ("xch", "a, b");
- s = "b";
- }
- else
- {
- emitcode (";", "genCmp #4.2");
- s = aopGet (AOP (right), offset++, FALSE, FALSE, FALSE);
- }
+ // emitcode (";", "genCmp #4");
+ saveAccWarn = 0;
+ s = aopGet (AOP (right), offset++, FALSE, FALSE, "b");
+ saveAccWarn = DEFAULT_ACC_WARNING;
emitcode ("subb", "a,%s", s);
}
sym_link *letype, *retype;
int sign;
- D (emitcode (";", "genCmpLt ");
- );
+ D (emitcode (";", "genCmpLt "););
left = IC_LEFT (ic);
right = IC_RIGHT (ic);
if the right is in a pointer register and left
is not */
if ((AOP_TYPE (left) == AOP_LIT) ||
+ (AOP_TYPE (left) == AOP_IMMD) ||
(IS_AOP_PREG (right) && !IS_AOP_PREG (left)))
{
operand *t = right;
* Exclude the generic type byte from the comparison.
*/
size--;
- D (emitcode (";", "cjneshort: generic ptr special case.");
- )
+ D (emitcode (";", "cjneshort: generic ptr special case."););
}
{
while (size--)
{
- char *l = aopGet (AOP (left), offset, FALSE, FALSE, TRUE);
- MOVA (l);
- emitcode ("cjne", "a,%s,%05d$",
- aopGet (AOP (right), offset, FALSE, FALSE, FALSE),
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
+ emitcode ("cjne", "a,%s,!tlabel",
+ aopGet (AOP (right), offset, FALSE, FALSE, NULL),
lbl->key + 100);
offset++;
}
if the left is a pointer register & right is not */
else if (AOP_TYPE (right) == AOP_REG ||
AOP_TYPE (right) == AOP_DIR ||
+ AOP_TYPE (right) == AOP_LIT ||
+ AOP_TYPE (right) == AOP_IMMD ||
(AOP_TYPE (left) == AOP_DIR && AOP_TYPE (right) == AOP_LIT) ||
(IS_AOP_PREG (left) && !IS_AOP_PREG (right)))
{
while (size--)
{
- MOVA (aopGet (AOP (left), offset, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
if ((AOP_TYPE (left) == AOP_DIR && AOP_TYPE (right) == AOP_LIT) &&
((unsigned int) ((lit >> (offset * 8)) & 0x0FFL) == 0))
- emitcode ("jnz", "%05d$", lbl->key + 100);
+ emitcode ("jnz", "!tlabel", lbl->key + 100);
else
- emitcode ("cjne", "a,%s,%05d$",
- aopGet (AOP (right), offset, FALSE, TRUE, FALSE),
+ emitcode ("cjne", "a,%s,!tlabel",
+ aopGet (AOP (right), offset, FALSE, TRUE, DP2_RESULT_REG),
lbl->key + 100);
offset++;
}
/* right is a pointer reg need both a & b */
while (size--)
{
- char *l = aopGet (AOP (left), offset, FALSE, FALSE, TRUE);
- if (strcmp (l, "b"))
- emitcode ("mov", "b,%s", l);
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("cjne", "a,b,%05d$", lbl->key + 100);
+ MOVB (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
+ MOVA (aopGet (AOP (right), offset, FALSE, FALSE, NULL));
+ emitcode ("cjne", "a,b,!tlabel", lbl->key + 100);
offset++;
}
}
gencjneshort (left, right, lbl);
emitcode ("mov", "a,%s", one);
- emitcode ("sjmp", "%05d$", tlbl->key + 100);
- emitcode ("", "%05d$:", lbl->key + 100);
+ emitcode ("sjmp", "!tlabel", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", lbl->key + 100);
emitcode ("clr", "a");
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
}
/*-----------------------------------------------------------------*/
{
symbol *lbl = newiTempLabel (NULL);
emitcode ("mov", "c,%s", AOP (left)->aopu.aop_dir);
- emitcode ("jb", "%s,%05d$", AOP (right)->aopu.aop_dir, (lbl->key + 100));
+ emitcode ("jb", "%s,!tlabel", AOP (right)->aopu.aop_dir, (lbl->key + 100));
emitcode ("cpl", "c");
- emitcode ("", "%05d$:", (lbl->key + 100));
+ emitcode ("", "!tlabeldef", (lbl->key + 100));
}
/* if true label then we jump if condition
supplied is true */
tlbl = newiTempLabel (NULL);
if (IC_TRUE (ifx))
{
- emitcode ("jnc", "%05d$", tlbl->key + 100);
- emitcode ("ljmp", "%05d$", IC_TRUE (ifx)->key + 100);
+ emitcode ("jnc", "!tlabel", tlbl->key + 100);
+ emitcode ("ljmp", "!tlabel", IC_TRUE (ifx)->key + 100);
}
else
{
- emitcode ("jc", "%05d$", tlbl->key + 100);
- emitcode ("ljmp", "%05d$", IC_FALSE (ifx)->key + 100);
+ emitcode ("jc", "!tlabel", tlbl->key + 100);
+ emitcode ("ljmp", "!tlabel", IC_FALSE (ifx)->key + 100);
}
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
}
else
{
gencjneshort (left, right, tlbl);
if (IC_TRUE (ifx))
{
- emitcode ("ljmp", "%05d$", IC_TRUE (ifx)->key + 100);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("ljmp", "!tlabel", IC_TRUE (ifx)->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
}
else
{
symbol *lbl = newiTempLabel (NULL);
- emitcode ("sjmp", "%05d$", lbl->key + 100);
- emitcode ("", "%05d$:", tlbl->key + 100);
- emitcode ("ljmp", "%05d$", IC_FALSE (ifx)->key + 100);
- emitcode ("", "%05d$:", lbl->key + 100);
+ emitcode ("sjmp", "!tlabel", lbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
+ emitcode ("ljmp", "!tlabel", IC_FALSE (ifx)->key + 100);
+ emitcode ("", "!tlabeldef", lbl->key + 100);
}
}
/* mark the icode as generated */
{
symbol *lbl = newiTempLabel (NULL);
emitcode ("mov", "c,%s", AOP (left)->aopu.aop_dir);
- emitcode ("jb", "%s,%05d$", AOP (right)->aopu.aop_dir, (lbl->key + 100));
+ emitcode ("jb", "%s,!tlabel", AOP (right)->aopu.aop_dir, (lbl->key + 100));
emitcode ("cpl", "c");
- emitcode ("", "%05d$:", (lbl->key + 100));
+ emitcode ("", "!tlabeldef", (lbl->key + 100));
}
freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
return NULL;
}
+/*-----------------------------------------------------------------*/
+/* hasInc - operand is incremented before any other use */
+/*-----------------------------------------------------------------*/
+static iCode *
+hasInc (operand *op, iCode *ic, int osize)
+{
+ sym_link *type = operandType(op);
+ sym_link *retype = getSpec (type);
+ iCode *lic = ic->next;
+ int isize ;
+
+ /* this could from a cast, e.g.: "(char xdata *) 0x7654;" */
+ if (!IS_SYMOP(op)) return NULL;
+
+ if (IS_BITVAR(retype)||!IS_PTR(type)) return NULL;
+ if (IS_AGGREGATE(type->next)) return NULL;
+ if (osize != (isize = getSize(type->next))) return NULL;
+
+ while (lic) {
+ /* if operand of the form op = op + <sizeof *op> */
+ if (lic->op == '+' && isOperandEqual(IC_LEFT(lic),op) &&
+ isOperandEqual(IC_RESULT(lic),op) &&
+ isOperandLiteral(IC_RIGHT(lic)) &&
+ operandLitValue(IC_RIGHT(lic)) == isize) {
+ return lic;
+ }
+ /* if the operand used or deffed */
+ if (bitVectBitValue(OP_USES(op),lic->key) || (unsigned) lic->defKey == op->key) {
+ return NULL;
+ }
+ /* if GOTO or IFX */
+ if (lic->op == IFX || lic->op == GOTO || lic->op == LABEL) break;
+ lic = lic->next;
+ }
+ return NULL;
+}
+
/*-----------------------------------------------------------------*/
/* genAndOp - for && operation */
/*-----------------------------------------------------------------*/
operand *left, *right, *result;
symbol *tlbl;
- D (emitcode (";", "genAndOp ");
- );
+ D (emitcode (";", "genAndOp "););
/* note here that && operations that are in an
if statement are taken away by backPatchLabels
only those used in arthmetic operations remain */
- AOP_OP_3 (ic);
+ AOP_OP_2 (ic);
AOP_SET_LOCALS (ic);
/* if both are bit variables */
{
emitcode ("mov", "c,%s", AOP (left)->aopu.aop_dir);
emitcode ("anl", "c,%s", AOP (right)->aopu.aop_dir);
+ freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
+ freeAsmop (right, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
+
+ aopOp (result,ic,FALSE, FALSE);
outBitC (result);
}
else
{
tlbl = newiTempLabel (NULL);
toBoolean (left);
- emitcode ("jz", "%05d$", tlbl->key + 100);
+ emitcode ("jz", "!tlabel", tlbl->key + 100);
toBoolean (right);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
+ freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
+ freeAsmop (right, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
+
+ aopOp (result,ic,FALSE, FALSE);
outBitAcc (result);
}
-
- freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
- freeAsmop (right, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
- freeAsmop (result, NULL, ic, TRUE);
+ freeAsmop (result, NULL, ic, TRUE);
}
operand *left, *right, *result;
symbol *tlbl;
- D (emitcode (";", "genOrOp ");
- );
+ D (emitcode (";", "genOrOp "););
/* note here that || operations that are in an
if statement are taken away by backPatchLabels
only those used in arthmetic operations remain */
- AOP_OP_3 (ic);
+ AOP_OP_2 (ic);
AOP_SET_LOCALS (ic);
/* if both are bit variables */
{
emitcode ("mov", "c,%s", AOP (left)->aopu.aop_dir);
emitcode ("orl", "c,%s", AOP (right)->aopu.aop_dir);
+ freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
+ freeAsmop (right, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
+
+ aopOp (result,ic,FALSE, FALSE);
+
outBitC (result);
}
else
{
tlbl = newiTempLabel (NULL);
toBoolean (left);
- emitcode ("jnz", "%05d$", tlbl->key + 100);
+ emitcode ("jnz", "!tlabel", tlbl->key + 100);
toBoolean (right);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
+ freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
+ freeAsmop (right, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
+
+ aopOp (result,ic,FALSE, FALSE);
+
outBitAcc (result);
}
- freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
- freeAsmop (right, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
freeAsmop (result, NULL, ic, TRUE);
}
continueIfTrue (iCode * ic)
{
if (IC_TRUE (ic))
- emitcode ("ljmp", "%05d$", IC_TRUE (ic)->key + 100);
+ emitcode ("ljmp", "!tlabel", IC_TRUE (ic)->key + 100);
ic->generated = 1;
}
jumpIfTrue (iCode * ic)
{
if (!IC_TRUE (ic))
- emitcode ("ljmp", "%05d$", IC_FALSE (ic)->key + 100);
+ emitcode ("ljmp", "!tlabel", IC_FALSE (ic)->key + 100);
ic->generated = 1;
}
if (IC_TRUE (ic))
{
symbol *nlbl = newiTempLabel (NULL);
- emitcode ("sjmp", "%05d$", nlbl->key + 100);
- emitcode ("", "%05d$:", tlbl->key + 100);
- emitcode ("ljmp", "%05d$", IC_TRUE (ic)->key + 100);
- emitcode ("", "%05d$:", nlbl->key + 100);
+ emitcode ("sjmp", "!tlabel", nlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
+ emitcode ("ljmp", "!tlabel", IC_TRUE (ic)->key + 100);
+ emitcode ("", "!tlabeldef", nlbl->key + 100);
}
else
{
- emitcode ("ljmp", "%05d$", IC_FALSE (ic)->key + 100);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("ljmp", "!tlabel", IC_FALSE (ic)->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
}
ic->generated = 1;
}
+// Generate code to perform a bit-wise logic operation
+// on two operands in far space (assumed to already have been
+// aopOp'd by the AOP_OP_3_NOFATAL macro), storing the result
+// in far space. This requires pushing the result on the stack
+// then popping it into the result.
+static void
+genFarFarLogicOp(iCode *ic, char *logicOp)
+{
+ int size, resultSize, compSize;
+ int offset = 0;
+
+ TR_AP("#5");
+ D(emitcode(";", "%s special case for 3 far operands.", logicOp););
+ compSize = AOP_SIZE(IC_LEFT(ic)) < AOP_SIZE(IC_RIGHT(ic)) ?
+ AOP_SIZE(IC_LEFT(ic)) : AOP_SIZE(IC_RIGHT(ic));
+
+ _startLazyDPSEvaluation();
+ for (size = compSize; (size--); offset++)
+ {
+ MOVA (aopGet (AOP (IC_LEFT(ic)), offset, FALSE, FALSE, NULL));
+ emitcode ("mov", "%s, acc", DP2_RESULT_REG);
+ MOVA (aopGet (AOP (IC_RIGHT(ic)), offset, FALSE, FALSE, NULL));
+
+ emitcode (logicOp, "a,%s", DP2_RESULT_REG);
+ emitcode ("push", "acc");
+ }
+ _endLazyDPSEvaluation();
+
+ freeAsmop (IC_LEFT(ic), NULL, ic, RESULTONSTACK (ic) ? FALSE : TRUE);
+ freeAsmop (IC_RIGHT(ic), NULL, ic, RESULTONSTACK (ic) ? FALSE : TRUE);
+ aopOp (IC_RESULT(ic),ic,TRUE, FALSE);
+
+ resultSize = AOP_SIZE(IC_RESULT(ic));
+
+ ADJUST_PUSHED_RESULT(compSize, resultSize);
+
+ _startLazyDPSEvaluation();
+ while (compSize--)
+ {
+ emitcode ("pop", "acc");
+ aopPut (AOP (IC_RESULT (ic)), "a", compSize);
+ }
+ _endLazyDPSEvaluation();
+ freeAsmop(IC_RESULT (ic), NULL, ic, TRUE);
+}
+
+
/*-----------------------------------------------------------------*/
/* genAnd - code for and */
/*-----------------------------------------------------------------*/
operand *left, *right, *result;
int size, offset = 0;
unsigned long lit = 0L;
- int bytelit = 0;
- char buffer[10];
+ int bytelit;
+ char buff[10];
+ bool pushResult;
- D (emitcode (";", "genAnd ");
- );
+ D (emitcode (";", "genAnd "););
- AOP_OP_3 (ic);
+ AOP_OP_3_NOFATAL (ic, pushResult);
AOP_SET_LOCALS (ic);
+ if (pushResult)
+ {
+ genFarFarLogicOp(ic, "anl");
+ return;
+ }
+
#ifdef DEBUG_TYPE
emitcode ("", "; Type res[%d] = l[%d]&r[%d]",
AOP_TYPE (result),
#endif
/* 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))
+ if ((AOP_TYPE (left) == AOP_LIT && AOP_TYPE (right) != AOP_LIT)
+#ifdef LOGIC_OPS_BROKEN
+ || AOP_NEEDSACC (left)
+#endif
+ )
{
operand *tmp = right;
right = left;
else
{
// c = bit & val;
- MOVA (aopGet (AOP (right), 0, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (right), 0, FALSE, FALSE, NULL));
// c = lsb
emitcode ("rrc", "a");
emitcode ("anl", "c,%s", AOP (left)->aopu.aop_dir);
if (posbit)
{
posbit--;
- MOVA (aopGet (AOP (left), posbit >> 3, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (left), posbit >> 3, FALSE, FALSE, NULL));
// bit = left & 2^n
if (size)
emitcode ("mov", "c,acc.%d", posbit & 0x07);
{
if (ifx)
{
- sprintf (buffer, "acc.%d", posbit & 0x07);
- genIfxJump (ifx, buffer);
+ SNPRINTF (buff, sizeof(buff),
+ "acc.%d", posbit & 0x07);
+ genIfxJump (ifx, buff);
}
+ else
+ {
+ emitcode ("anl","a,#!constbyte",1 << (posbit & 0x07));
+ }
goto release;
}
}
{
if ((bytelit = ((lit >> (offset * 8)) & 0x0FFL)) != 0x0L)
{
- MOVA (aopGet (AOP (left), offset, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
// byte == 2^n ?
if ((posbit = isLiteralBit (bytelit)) != 0)
- emitcode ("jb", "acc.%d,%05d$", (posbit - 1) & 0x07, tlbl->key + 100);
+ emitcode ("jb", "acc.%d,!tlabel", (posbit - 1) & 0x07, tlbl->key + 100);
else
{
if (bytelit != 0x0FFL)
emitcode ("anl", "a,%s",
- aopGet (AOP (right), offset, FALSE, TRUE, FALSE));
- emitcode ("jnz", "%05d$", tlbl->key + 100);
+ aopGet (AOP (right), offset, FALSE, TRUE, DP2_RESULT_REG));
+ emitcode ("jnz", "!tlabel", tlbl->key + 100);
}
}
offset++;
if (size)
{
emitcode ("clr", "c");
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
}
// if(left & literal)
else
{
if (ifx)
jmpTrueOrFalse (ifx, tlbl);
+ else
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
goto release;
}
}
aopPut (AOP (result), zero, offset);
else if (IS_AOP_PREG (result))
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("anl", "a,%s", aopGet (AOP (left), offset, FALSE, TRUE, FALSE));
+ MOVA (aopGet (AOP (right), offset, FALSE, FALSE, NULL));
+ emitcode ("anl", "a,%s",
+ aopGet (AOP (left), offset, FALSE, TRUE, DP2_RESULT_REG));
aopPut (AOP (result), "a", offset);
}
else
emitcode ("anl", "%s,%s",
- aopGet (AOP (left), offset, FALSE, TRUE, FALSE),
- aopGet (AOP (right), offset, FALSE, FALSE, FALSE));
+ aopGet (AOP (left), offset, FALSE, TRUE, NULL),
+ aopGet (AOP (right), offset, FALSE, FALSE, NULL));
}
else
{
if (AOP_TYPE (left) == AOP_ACC)
- emitcode ("anl", "a,%s", aopGet (AOP (right), offset, FALSE, FALSE, FALSE));
+ emitcode ("anl", "a,%s",
+ aopGet (AOP (right), offset, FALSE, FALSE, DP2_RESULT_REG));
else
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (right), offset, FALSE, FALSE, NULL));
if (IS_AOP_PREG (result))
{
- emitcode ("anl", "a,%s", aopGet (AOP (left), offset, FALSE, TRUE, FALSE));
+ emitcode ("anl", "a,%s",
+ aopGet (AOP (left), offset, FALSE, TRUE, DP2_RESULT_REG));
aopPut (AOP (result), "a", offset);
-
}
else
emitcode ("anl", "%s,a",
- aopGet (AOP (left), offset, FALSE, TRUE, FALSE));
+ aopGet (AOP (left), offset, FALSE, TRUE, DP2_RESULT_REG));
}
}
}
emitcode ("setb", "c");
while (sizer--)
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("anl", "a,%s",
- aopGet (AOP (left), offset, FALSE, FALSE, FALSE));
- emitcode ("jnz", "%05d$", tlbl->key + 100);
+ if (AOP_TYPE(right)==AOP_REG && AOP_TYPE(left)==AOP_ACC) {
+ emitcode ("anl", "a,%s",
+ aopGet (AOP (right), offset, FALSE, FALSE, DP2_RESULT_REG));
+ } else {
+ if (AOP_TYPE(left)==AOP_ACC) {
+ emitcode("mov", "b,a");
+ MOVA (aopGet (AOP (right), offset, FALSE, FALSE, NULL));
+ emitcode("anl", "a,b");
+ }else {
+ MOVA (aopGet (AOP (right), offset, FALSE, FALSE, NULL));
+ emitcode ("anl", "a,%s",
+ aopGet (AOP (left), offset, FALSE, FALSE, DP2_RESULT_REG));
+ }
+ }
+ emitcode ("jnz", "!tlabel", tlbl->key + 100);
offset++;
}
if (size)
{
CLRC;
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
outBitC (result);
}
else if (ifx)
jmpTrueOrFalse (ifx, tlbl);
+ else
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
}
else
{
if ((bytelit = (int) ((lit >> (offset * 8)) & 0x0FFL)) == 0x0FF)
{
aopPut (AOP (result),
- aopGet (AOP (left), offset, FALSE, FALSE, FALSE),
+ aopGet (AOP (left), offset, FALSE, FALSE, NULL),
offset);
continue;
}
aopPut (AOP (result), zero, offset);
continue;
}
- D (emitcode (";", "better literal AND.");
- );
- MOVA (aopGet (AOP (left), offset, FALSE, FALSE, TRUE));
+ D (emitcode (";", "better literal AND."););
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
emitcode ("anl", "a, %s", aopGet (AOP (right), offset,
- FALSE, FALSE, FALSE));
+ FALSE, FALSE, DP2_RESULT_REG));
}
else
// and better if result is SFR
if (AOP_TYPE (left) == AOP_ACC)
{
- emitcode ("anl", "a,%s", aopGet (AOP (right), offset,
- FALSE, FALSE, FALSE));
+ emitcode ("anl", "a,%s",
+ aopGet (AOP (right), offset, FALSE, FALSE, DP2_RESULT_REG));
}
else
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("anl", "a,%s",
- aopGet (AOP (left), offset, FALSE, FALSE, FALSE));
- }
+ char *rOp = aopGet (AOP (right), offset, FALSE, FALSE, NULL);
+ if (!strcmp(rOp, "a") || !strcmp(rOp, "acc"))
+ {
+ emitcode("mov", "b,a");
+ rOp = "b";
+ }
+
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
+ emitcode ("anl", "a,%s", rOp);
+ }
}
aopPut (AOP (result), "a", offset);
}
freeAsmop (result, NULL, ic, TRUE);
}
+
/*-----------------------------------------------------------------*/
/* genOr - code for or */
/*-----------------------------------------------------------------*/
operand *left, *right, *result;
int size, offset = 0;
unsigned long lit = 0L;
+ bool pushResult;
- D (emitcode (";", "genOr ");
- );
+ D (emitcode (";", "genOr "););
- AOP_OP_3 (ic);
+ AOP_OP_3_NOFATAL (ic, pushResult);
AOP_SET_LOCALS (ic);
+ if (pushResult)
+ {
+ genFarFarLogicOp(ic, "orl");
+ return;
+ }
+
+
#ifdef DEBUG_TYPE
emitcode ("", "; Type res[%d] = l[%d]&r[%d]",
AOP_TYPE (result),
#endif
/* 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))
+ if ((AOP_TYPE (left) == AOP_LIT && AOP_TYPE (right) != AOP_LIT)
+#ifdef LOGIC_OPS_BROKEN
+ || AOP_NEEDSACC (left) // I think this is a net loss now.
+#endif
+ )
{
operand *tmp = right;
right = left;
symbol *tlbl = newiTempLabel (NULL);
if (!((AOP_TYPE (result) == AOP_CRY) && ifx))
emitcode ("setb", "c");
- emitcode ("jb", "%s,%05d$",
+ emitcode ("jb", "%s,!tlabel",
AOP (left)->aopu.aop_dir, tlbl->key + 100);
toBoolean (right);
- emitcode ("jnz", "%05d$", tlbl->key + 100);
+ emitcode ("jnz", "!tlabel", tlbl->key + 100);
if ((AOP_TYPE (result) == AOP_CRY) && ifx)
{
jmpTrueOrFalse (ifx, tlbl);
else
{
CLRC;
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
}
}
}
outBitC (result);
// if(bit | ...)
else if ((AOP_TYPE (result) == AOP_CRY) && ifx)
- genIfxJump (ifx, "c");
+ genIfxJump (ifx, "c");
goto release;
}
if (size)
{
symbol *tlbl = newiTempLabel (NULL);
- emitcode ("jnz", "%05d$", tlbl->key + 100);
+ emitcode ("jnz", "!tlabel", tlbl->key + 100);
CLRC;
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
}
else
{
{
if (IS_AOP_PREG (left))
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("orl", "a,%s", aopGet (AOP (left), offset, FALSE, TRUE, FALSE));
+ MOVA (aopGet (AOP (right), offset, FALSE, FALSE, NULL));
+ emitcode ("orl", "a,%s",
+ aopGet (AOP (left), offset, FALSE, TRUE, DP2_RESULT_REG));
aopPut (AOP (result), "a", offset);
}
else
{
emitcode ("orl", "%s,%s",
- aopGet (AOP (left), offset, FALSE, TRUE, FALSE),
- aopGet (AOP (right), offset, FALSE, FALSE, FALSE));
+ aopGet (AOP (left), offset, FALSE, TRUE, NULL),
+ aopGet (AOP (right), offset, FALSE, FALSE, DP2_RESULT_REG));
}
}
}
{
if (AOP_TYPE (left) == AOP_ACC)
{
- emitcode ("orl", "a,%s", aopGet (AOP (right), offset, FALSE, FALSE, FALSE));
+ emitcode ("orl", "a,%s",
+ aopGet (AOP (right), offset, FALSE, FALSE, DP2_RESULT_REG));
}
else
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (right), offset, FALSE, FALSE, NULL));
if (IS_AOP_PREG (left))
{
- emitcode ("orl", "a,%s", aopGet (AOP (left), offset, FALSE, TRUE, FALSE));
+ emitcode ("orl", "a,%s",
+ aopGet (AOP (left), offset, FALSE, TRUE, DP2_RESULT_REG));
aopPut (AOP (result), "a", offset);
}
else
{
emitcode ("orl", "%s,a",
- aopGet (AOP (left), offset, FALSE, TRUE, FALSE));
+ aopGet (AOP (left), offset, FALSE, TRUE, DP2_RESULT_REG));
}
}
}
emitcode ("setb", "c");
while (sizer--)
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("orl", "a,%s",
- aopGet (AOP (left), offset, FALSE, FALSE, FALSE));
- emitcode ("jnz", "%05d$", tlbl->key + 100);
+ if (AOP_TYPE(right)==AOP_REG && AOP_TYPE(left)==AOP_ACC) {
+ emitcode ("orl", "a,%s",
+ aopGet (AOP (right), offset, FALSE, FALSE, DP2_RESULT_REG));
+ } else {
+ MOVA (aopGet (AOP (right), offset, FALSE, FALSE, NULL));
+ emitcode ("orl", "a,%s",
+ aopGet (AOP (left), offset, FALSE, FALSE, DP2_RESULT_REG));
+ }
+ emitcode ("jnz", "!tlabel", tlbl->key + 100);
offset++;
}
if (size)
{
CLRC;
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
outBitC (result);
}
else if (ifx)
jmpTrueOrFalse (ifx, tlbl);
+ else
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
}
else
{
+ _startLazyDPSEvaluation();
for (; (size--); offset++)
{
// normal case
if (((lit >> (offset * 8)) & 0x0FFL) == 0x00L)
{
aopPut (AOP (result),
- aopGet (AOP (left), offset, FALSE, FALSE, FALSE),
+ aopGet (AOP (left), offset, FALSE, FALSE, NULL),
offset);
continue;
}
- D (emitcode (";", "better literal OR.");
- );
- MOVA (aopGet (AOP (left), offset, FALSE, FALSE, TRUE));
- emitcode ("orl", "a, %s", aopGet (AOP (right), offset,
- FALSE, FALSE, FALSE));
+ D (emitcode (";", "better literal OR."););
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
+ emitcode ("orl", "a, %s",
+ aopGet (AOP (right), offset,
+ FALSE, FALSE, DP2_RESULT_REG));
}
else
// and better if result is SFR
if (AOP_TYPE (left) == AOP_ACC)
{
- emitcode ("orl", "a,%s", aopGet (AOP (right), offset,
- FALSE, FALSE, FALSE));
+ emitcode ("orl", "a,%s",
+ aopGet (AOP (right), offset,
+ FALSE, FALSE, DP2_RESULT_REG));
}
else
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("orl", "a,%s",
- aopGet (AOP (left), offset, FALSE, FALSE, FALSE));
+ char *rOp = aopGet (AOP (right), offset, FALSE, FALSE, NULL);
+
+ if (!strcmp(rOp, "a") || !strcmp(rOp, "acc"))
+ {
+ emitcode("mov", "b,a");
+ rOp = "b";
+ }
+
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
+ emitcode ("orl", "a,%s", rOp);
}
}
aopPut (AOP (result), "a", offset);
}
+ _endLazyDPSEvaluation();
}
}
operand *left, *right, *result;
int size, offset = 0;
unsigned long lit = 0L;
+ bool pushResult;
- D (emitcode (";", "genXor ");
- );
+ D (emitcode (";", "genXor "););
- AOP_OP_3 (ic);
+ AOP_OP_3_NOFATAL (ic, pushResult);
AOP_SET_LOCALS (ic);
+ if (pushResult)
+ {
+ genFarFarLogicOp(ic, "xrl");
+ return;
+ }
+
#ifdef DEBUG_TYPE
emitcode ("", "; Type res[%d] = l[%d]&r[%d]",
AOP_TYPE (result),
/* 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)))
+ if ((AOP_TYPE (left) == AOP_LIT && AOP_TYPE (right) != AOP_LIT)
+#ifdef LOGIC_OPS_BROKEN
+ || (AOP_NEEDSACC (left) && !AOP_NEEDSACC (right))
+#endif
+ )
{
operand *tmp = right;
right = left;
emitcode ("setb", "c");
while (sizer)
{
- MOVA (aopGet (AOP (right), sizer - 1, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (right), sizer - 1, FALSE, FALSE, NULL));
if (sizer == 1)
// test the msb of the lsb
- emitcode ("anl", "a,#0xfe");
- emitcode ("jnz", "%05d$", tlbl->key + 100);
+ emitcode ("anl", "a,#!constbyte",0xfe);
+ emitcode ("jnz", "!tlabel", tlbl->key + 100);
sizer--;
}
// val = (0,1)
emitcode ("rrc", "a");
}
- emitcode ("jnb", "%s,%05d$", AOP (left)->aopu.aop_dir, (tlbl->key + 100));
+ emitcode ("jnb", "%s,!tlabel", AOP (left)->aopu.aop_dir, (tlbl->key + 100));
emitcode ("cpl", "c");
- emitcode ("", "%05d$:", (tlbl->key + 100));
+ emitcode ("", "!tlabeldef", (tlbl->key + 100));
}
// bit = c
// val = c
continue;
else if (IS_AOP_PREG (left))
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("xrl", "a,%s", aopGet (AOP (left), offset, FALSE, TRUE, FALSE));
+ MOVA (aopGet (AOP (right), offset, FALSE, FALSE, NULL));
+ emitcode ("xrl", "a,%s",
+ aopGet (AOP (left), offset, FALSE, TRUE, DP2_RESULT_REG));
aopPut (AOP (result), "a", offset);
}
else
emitcode ("xrl", "%s,%s",
- aopGet (AOP (left), offset, FALSE, TRUE, FALSE),
- aopGet (AOP (right), offset, FALSE, FALSE, FALSE));
+ aopGet (AOP (left), offset, FALSE, TRUE, NULL),
+ aopGet (AOP (right), offset, FALSE, FALSE, DP2_RESULT_REG));
}
else
{
if (AOP_TYPE (left) == AOP_ACC)
- emitcode ("xrl", "a,%s", aopGet (AOP (right), offset, FALSE, FALSE, FALSE));
+ emitcode ("xrl", "a,%s",
+ aopGet (AOP (right), offset, FALSE, FALSE, DP2_RESULT_REG));
else
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (right), offset, FALSE, FALSE, NULL));
if (IS_AOP_PREG (left))
{
- emitcode ("xrl", "a,%s", aopGet (AOP (left), offset, FALSE, TRUE, FALSE));
+ emitcode ("xrl", "a,%s",
+ aopGet (AOP (left), offset, FALSE, TRUE, DP2_RESULT_REG));
aopPut (AOP (result), "a", offset);
}
else
emitcode ("xrl", "%s,a",
- aopGet (AOP (left), offset, FALSE, TRUE, FALSE));
+ aopGet (AOP (left), offset, FALSE, TRUE, DP2_RESULT_REG));
}
}
}
// if(!size && ifx), conditional oper: if(left ^ right)
symbol *tlbl = newiTempLabel (NULL);
int sizer = max (AOP_SIZE (left), AOP_SIZE (right));
+
if (size)
emitcode ("setb", "c");
while (sizer--)
if ((AOP_TYPE (right) == AOP_LIT) &&
(((lit >> (offset * 8)) & 0x0FFL) == 0x00L))
{
- MOVA (aopGet (AOP (left), offset, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
}
else
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("xrl", "a,%s",
- aopGet (AOP (left), offset, FALSE, FALSE, FALSE));
+ if (AOP_TYPE(right)==AOP_REG && AOP_TYPE(left)==AOP_ACC) {
+ emitcode ("xrl", "a,%s",
+ aopGet (AOP (right), offset, FALSE, FALSE, DP2_RESULT_REG));
+ } else {
+ char *rOp = aopGet (AOP (right), offset, FALSE, FALSE, NULL);
+ if (!strcmp(rOp, "a") || !strcmp(rOp, "acc"))
+ {
+ emitcode("mov", "b,a");
+ rOp = "b";
+ }
+
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
+ emitcode ("xrl", "a,%s", rOp);
+ }
}
- emitcode ("jnz", "%05d$", tlbl->key + 100);
+ emitcode ("jnz", "!tlabel", tlbl->key + 100);
offset++;
}
if (size)
{
CLRC;
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
outBitC (result);
}
else if (ifx)
jmpTrueOrFalse (ifx, tlbl);
}
else
+ {
for (; (size--); offset++)
{
// normal case
if (((lit >> (offset * 8)) & 0x0FFL) == 0x00L)
{
aopPut (AOP (result),
- aopGet (AOP (left), offset, FALSE, FALSE, FALSE),
+ aopGet (AOP (left), offset, FALSE, FALSE, NULL),
offset);
continue;
}
- D (emitcode (";", "better literal XOR.");
- );
- MOVA (aopGet (AOP (left), offset, FALSE, FALSE, TRUE));
- emitcode ("xrl", "a, %s", aopGet (AOP (right), offset,
- FALSE, FALSE, FALSE));
+ D (emitcode (";", "better literal XOR."););
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
+ emitcode ("xrl", "a, %s",
+ aopGet (AOP (right), offset, FALSE, FALSE, DP2_RESULT_REG));
}
else
{
// and better if result is SFR
if (AOP_TYPE (left) == AOP_ACC)
{
- emitcode ("xrl", "a,%s", aopGet (AOP (right), offset,
- FALSE, FALSE, FALSE));
+ emitcode ("xrl", "a,%s",
+ aopGet (AOP (right), offset,
+ FALSE, FALSE, DP2_RESULT_REG));
}
else
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("xrl", "a,%s",
- aopGet (AOP (left), offset, FALSE, TRUE, FALSE));
+ char *rOp = aopGet (AOP (right), offset, FALSE, FALSE, NULL);
+ if (!strcmp(rOp, "a") || !strcmp(rOp, "acc"))
+ {
+ emitcode("mov", "b,a");
+ rOp = "b";
+ }
+
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
+ emitcode ("xrl", "a,%s", rOp);
}
}
aopPut (AOP (result), "a", offset);
}
+ }
+
}
release:
static void
genInline (iCode * ic)
{
- char buffer[MAX_INLINEASM];
- char *bp = buffer;
- char *bp1 = buffer;
+ char *buffer, *bp, *bp1;
- D (emitcode (";", "genInline ");
- );
+ D (emitcode (";", "genInline "); );
_G.inLine += (!options.asmpeep);
- strcpy (buffer, IC_INLINE (ic));
+
+ buffer = Safe_strdup(IC_INLINE(ic));
+ bp = buffer;
+ bp1 = buffer;
/* emit each line as a code */
while (*bp)
genRRC (iCode * ic)
{
operand *left, *result;
- int size, offset = 0;
- char *l;
+ int size, offset;
- D (emitcode (";", "genRRC ");
- );
+ D (emitcode (";", "genRRC "););
/* rotate right with carry */
left = IC_LEFT (ic);
result = IC_RESULT (ic);
aopOp (left, ic, FALSE, FALSE);
- aopOp (result, ic, FALSE, AOP_TYPE (left) == AOP_DPTR);
+ aopOp (result, ic, FALSE, AOP_USESDPTR(left));
/* move it to the result */
size = AOP_SIZE (result);
_startLazyDPSEvaluation ();
while (size--)
{
- l = aopGet (AOP (left), offset, FALSE, FALSE, TRUE);
- MOVA (l);
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
emitcode ("rrc", "a");
if (AOP_SIZE (result) > 1)
aopPut (AOP (result), "a", offset--);
highest order byte of the result */
if (AOP_SIZE (result) > 1)
{
- l = aopGet (AOP (result), AOP_SIZE (result) - 1, FALSE, FALSE, TRUE);
- MOVA (l);
+ MOVA (aopGet (AOP (result), AOP_SIZE (result) - 1, FALSE, FALSE, NULL));
}
emitcode ("mov", "acc.7,c");
aopPut (AOP (result), "a", AOP_SIZE (result) - 1);
genRLC (iCode * ic)
{
operand *left, *result;
- int size, offset = 0;
+ int size, offset;
char *l;
- D (emitcode (";", "genRLC ");
- );
+ D (emitcode (";", "genRLC "););
/* rotate right with carry */
left = IC_LEFT (ic);
result = IC_RESULT (ic);
aopOp (left, ic, FALSE, FALSE);
- aopOp (result, ic, FALSE, AOP_TYPE (left) == AOP_DPTR);
+ aopOp (result, ic, FALSE, AOP_USESDPTR(left));
/* move it to the result */
size = AOP_SIZE (result);
offset = 0;
if (size--)
{
- l = aopGet (AOP (left), offset, FALSE, FALSE, TRUE);
+ l = aopGet (AOP (left), offset, FALSE, FALSE, NULL);
MOVA (l);
emitcode ("add", "a,acc");
if (AOP_SIZE (result) > 1)
_startLazyDPSEvaluation ();
while (size--)
{
- l = aopGet (AOP (left), offset, FALSE, FALSE, TRUE);
+ l = aopGet (AOP (left), offset, FALSE, FALSE, NULL);
MOVA (l);
emitcode ("rlc", "a");
if (AOP_SIZE (result) > 1)
highest order byte of the result */
if (AOP_SIZE (result) > 1)
{
- l = aopGet (AOP (result), 0, FALSE, FALSE, TRUE);
+ l = aopGet (AOP (result), 0, FALSE, FALSE, NULL);
MOVA (l);
}
emitcode ("mov", "acc.0,c");
left = IC_LEFT (ic);
result = IC_RESULT (ic);
aopOp (left, ic, FALSE, FALSE);
- aopOp (result, ic, FALSE, AOP_TYPE (left) == AOP_DPTR);
+ aopOp (result, ic, FALSE, AOP_USESDPTR(left));
- D (emitcode (";", "genGetHbit ");
- );
+ D (emitcode (";", "genGetHbit "););
/* get the highest order byte into a */
- MOVA (aopGet (AOP (left), AOP_SIZE (left) - 1, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (left), AOP_SIZE (left) - 1, FALSE, FALSE, NULL));
if (AOP_TYPE (result) == AOP_CRY)
{
emitcode ("rlc", "a");
else
{
emitcode ("rl", "a");
- emitcode ("anl", "a,#0x01");
+ emitcode ("anl", "a,#1");
outAcc (result);
}
freeAsmop (result, NULL, ic, TRUE);
}
+/*-----------------------------------------------------------------*/
+/* genSwap - generates code to swap nibbles or bytes */
+/*-----------------------------------------------------------------*/
+static void
+genSwap (iCode * ic)
+{
+ operand *left, *result;
+
+ D(emitcode ("; genSwap",""));
+
+ left = IC_LEFT (ic);
+ result = IC_RESULT (ic);
+ aopOp (left, ic, FALSE, FALSE);
+ aopOp (result, ic, FALSE, AOP_USESDPTR(left));
+
+ _startLazyDPSEvaluation ();
+ switch (AOP_SIZE (left))
+ {
+ case 1: /* swap nibbles in byte */
+ MOVA (aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ emitcode ("swap", "a");
+ aopPut (AOP (result), "a", 0);
+ break;
+ case 2: /* swap bytes in word */
+ if (AOP_TYPE(left) == AOP_REG && sameRegs(AOP(left), AOP(result)))
+ {
+ MOVA (aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ aopPut (AOP (result), aopGet (AOP (left), 1, FALSE, FALSE, NULL), 0);
+ aopPut (AOP (result), "a", 1);
+ }
+ else if (operandsEqu (left, result))
+ {
+ char * reg = "a";
+ MOVA (aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ if (AOP_NEEDSACC (left) || AOP_NEEDSACC (result))
+ {
+ emitcode ("mov", "b,a");
+ reg = "b";
+ _G.bInUse=1;
+ }
+ aopPut (AOP (result), aopGet (AOP (left), 1, FALSE, FALSE, NULL), 0);
+ aopPut (AOP (result), reg, 1);
+ _G.bInUse=0;
+ }
+ else
+ {
+ aopPut (AOP (result), aopGet (AOP (left), 1, FALSE, FALSE, NULL), 0);
+ aopPut (AOP (result), aopGet (AOP (left), 0, FALSE, FALSE, NULL), 1);
+ }
+ break;
+ default:
+ wassertl(FALSE, "unsupported SWAP operand size");
+ }
+ _endLazyDPSEvaluation ();
+
+ freeAsmop (left, NULL, ic, TRUE);
+ freeAsmop (result, NULL, ic, TRUE);
+}
+
/*-----------------------------------------------------------------*/
/* AccRol - rotate left accumulator by known count */
/*-----------------------------------------------------------------*/
/* rotate left accumulator */
AccRol (shCount);
/* and kill the lower order bits */
- emitcode ("anl", "a,#0x%02x", SLMask[shCount]);
+ emitcode ("anl", "a,#!constbyte", SLMask[shCount]);
}
}
}
/* rotate right accumulator */
AccRol (8 - shCount);
/* and kill the higher order bits */
- emitcode ("anl", "a,#0x%02x", SRMask[shCount]);
+ emitcode ("anl", "a,#!constbyte", SRMask[shCount]);
}
}
}
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* AccSRsh - signed right shift accumulator by known count */
/*-----------------------------------------------------------------*/
/* rotate right accumulator */
AccRol (8 - shCount);
/* and kill the higher order bits */
- emitcode ("anl", "a,#0x%02x", SRMask[shCount]);
- emitcode ("jnb", "acc.%d,%05d$", 7 - shCount, tlbl->key + 100);
- emitcode ("orl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte", SRMask[shCount]);
+ emitcode ("jnb", "acc.%d,!tlabel", 7 - shCount, tlbl->key + 100);
+ emitcode ("orl", "a,#!constbyte",
(unsigned char) ~SRMask[shCount]);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
}
}
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* shiftR1Left2Result - shift right one byte from left to result */
/*-----------------------------------------------------------------*/
operand * result, int offr,
int shCount, int sign)
{
- MOVA (aopGet (AOP (left), offl, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (left), offl, FALSE, FALSE, NULL));
/* shift right accumulator */
if (sign)
AccSRsh (shCount);
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* shiftL1Left2Result - shift left one byte from left to result */
/*-----------------------------------------------------------------*/
shiftL1Left2Result (operand * left, int offl,
operand * result, int offr, int shCount)
{
- char *l;
- l = aopGet (AOP (left), offl, FALSE, FALSE, TRUE);
- MOVA (l);
+ MOVA(aopGet (AOP (left), offl, FALSE, FALSE, NULL));
/* shift left accumulator */
AccLsh (shCount);
aopPut (AOP (result), "a", offr);
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* movLeft2Result - move byte from left to result */
/*-----------------------------------------------------------------*/
{
char *l;
if (!sameRegs (AOP (left), AOP (result)) || (offl != offr))
- {
- l = aopGet (AOP (left), offl, FALSE, FALSE, FALSE);
+ {
+ l = aopGet (AOP (left), offl, FALSE, FALSE, NULL);
if (*l == '@' && (IS_AOP_PREG (result)))
- {
+ {
emitcode ("mov", "a,%s", l);
aopPut (AOP (result), "a", offr);
- }
+ }
else
- {
+ {
if (!sign)
+ {
aopPut (AOP (result), l, offr);
+ }
else
{
/* MSB sign in acc.7 ! */
aopPut (AOP (result), "a", offr);
}
}
- }
- }
+ }
+ }
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* AccAXRrl1 - right rotate c->a:x->c by 1 */
/*-----------------------------------------------------------------*/
}
#endif
-#if 0
+#ifdef BETTER_LITERAL_SHIFT
//REMOVE ME!!!
/*-----------------------------------------------------------------*/
/* AccAXLrl1 - left rotate c<-a:x<-c by 1 */
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* AccAXLsh1 - left shift a:x<-0 by 1 */
/*-----------------------------------------------------------------*/
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* AccAXLsh - left shift a:x by known count (0..7) */
/*-----------------------------------------------------------------*/
AccRol (shCount); // BBBAAAAA:CCCCCDDD
- emitcode ("anl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte",
SLMask[shCount]); // BBB00000:CCCCCDDD
emitcode ("xch", "a,%s", x); // CCCCCDDD:BBB00000
emitcode ("xch", "a,%s", x); // DDDCCCCC:(BBB^DDD)CCCCC
- emitcode ("anl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte",
SLMask[shCount]); // DDD00000:(BBB^DDD)CCCCC
emitcode ("xch", "a,%s", x); // (BBB^DDD)CCCCC:DDD00000
break;
case 6: // AAAAAABB:CCCCCCDD
-
- emitcode ("anl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte",
SRMask[shCount]); // 000000BB:CCCCCCDD
-
emitcode ("mov", "c,acc.0"); // c = B
-
emitcode ("xch", "a,%s", x); // CCCCCCDD:000000BB
-
+#if 0
AccAXRrl1 (x); // BCCCCCCD:D000000B
-
AccAXRrl1 (x); // BBCCCCCC:DD000000
-
+#else
+ emitcode("rrc","a");
+ emitcode("xch","a,%s", x);
+ emitcode("rrc","a");
+ emitcode("mov","c,acc.0"); //<< get correct bit
+ emitcode("xch","a,%s", x);
+
+ emitcode("rrc","a");
+ emitcode("xch","a,%s", x);
+ emitcode("rrc","a");
+ emitcode("xch","a,%s", x);
+#endif
break;
case 7: // a:x <<= 7
- emitcode ("anl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte",
SRMask[shCount]); // 0000000B:CCCCCCCD
emitcode ("mov", "c,acc.0"); // c = B
}
#endif
-#if 0
+#ifdef BETTER_LITERAL_SHIFT
//REMOVE ME!!!
/*-----------------------------------------------------------------*/
/* AccAXRsh - right shift a:x known count (0..7) */
AccRol (8 - shCount); // DDDCCCCC:BBBAAAAA
- emitcode ("anl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte",
SRMask[shCount]); // 000CCCCC:BBBAAAAA
emitcode ("xrl", "a,%s", x); // BBB(CCCCC^AAAAA):BBBAAAAA
emitcode ("xch", "a,%s", x); // BBBAAAAA:BBB(CCCCC^AAAAA)
- emitcode ("anl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte",
SRMask[shCount]); // 000AAAAA:BBB(CCCCC^AAAAA)
emitcode ("xch", "a,%s", x); // BBB(CCCCC^AAAAA):000AAAAA
emitcode ("xch", "a,%s", x); // DDDDDDAA:BBBBBBCC
- emitcode ("anl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte",
SRMask[shCount]); // 000000AA:BBBBBBCC
break;
emitcode ("xch", "a,%s", x); // DDDDDDDA:BBBBBBCC
- emitcode ("anl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte",
SRMask[shCount]); // 0000000A:BBBBBBBC
break;
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* AccAXRshS - right shift signed a:x known count (0..7) */
/*-----------------------------------------------------------------*/
AccRol (8 - shCount); // DDDCCCCC:BBBAAAAA
- emitcode ("anl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte",
SRMask[shCount]); // 000CCCCC:BBBAAAAA
emitcode ("xrl", "a,%s", x); // BBB(CCCCC^AAAAA):BBBAAAAA
emitcode ("xch", "a,%s", x); // BBBAAAAA:BBB(CCCCC^AAAAA)
- emitcode ("anl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte",
SRMask[shCount]); // 000AAAAA:BBB(CCCCC^AAAAA)
emitcode ("xch", "a,%s", x); // BBB(CCCCC^AAAAA):000AAAAA
emitcode ("xch", "a,%s", x); // 000SAAAA:BBBCCCCC
- emitcode ("jnb", "acc.%d,%05d$", 7 - shCount, tlbl->key + 100);
- emitcode ("orl", "a,#0x%02x",
+ emitcode ("jnb", "acc.%d,!tlabel", 7 - shCount, tlbl->key + 100);
+ emitcode ("orl", "a,#!constbyte",
(unsigned char) ~SRMask[shCount]); // 111AAAAA:BBBCCCCC
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
break; // SSSSAAAA:BBBCCCCC
case 6: // AABBBBBB:CCDDDDDD
emitcode ("xch", "a,%s", x); // DDDDDDAA:BBBBBBCC
- emitcode ("anl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte",
SRMask[shCount]); // 000000AA:BBBBBBCC
- emitcode ("jnb", "acc.%d,%05d$", 7 - shCount, tlbl->key + 100);
- emitcode ("orl", "a,#0x%02x",
+ emitcode ("jnb", "acc.%d,!tlabel", 7 - shCount, tlbl->key + 100);
+ emitcode ("orl", "a,#!constbyte",
(unsigned char) ~SRMask[shCount]); // 111111AA:BBBBBBCC
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
break;
case 7: // ABBBBBBB:CDDDDDDD
emitcode ("xch", "a,%s", x); // DDDDDDDA:BBBBBBCC
- emitcode ("anl", "a,#0x%02x",
+ emitcode ("anl", "a,#!constbyte",
SRMask[shCount]); // 0000000A:BBBBBBBC
- emitcode ("jnb", "acc.%d,%05d$", 7 - shCount, tlbl->key + 100);
- emitcode ("orl", "a,#0x%02x",
+ emitcode ("jnb", "acc.%d,!tlabel", 7 - shCount, tlbl->key + 100);
+ emitcode ("orl", "a,#!constbyte",
(unsigned char) ~SRMask[shCount]); // 1111111A:BBBBBBBC
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
break;
default:
break;
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
+static void
+_loadLeftIntoAx(char **lsb,
+ operand *left,
+ operand *result,
+ int offl,
+ int offr)
+{
+ // Get the initial value from left into a pair of registers.
+ // MSB must be in A, LSB can be any register.
+ //
+ // If the result is held in registers, it is an optimization
+ // if the LSB can be held in the register which will hold the,
+ // result LSB since this saves us from having to copy it into
+ // the result following AccAXLsh.
+ //
+ // If the result is addressed indirectly, this is not a gain.
+ if (AOP_NEEDSACC(result))
+ {
+ char *leftByte;
+
+ _startLazyDPSEvaluation();
+ if (AOP_TYPE(left) == AOP_DPTR2)
+ {
+ // Get MSB in A.
+ MOVA(aopGet(AOP(left), offl + MSB16, FALSE, FALSE, NULL));
+ // get LSB in DP2_RESULT_REG.
+ leftByte = aopGet(AOP(left), offl, FALSE, FALSE, DP2_RESULT_REG);
+ assert(!strcmp(leftByte, DP2_RESULT_REG));
+ }
+ else
+ {
+ // get LSB into DP2_RESULT_REG
+ leftByte = aopGet (AOP(left), offl, FALSE, FALSE, NULL);
+ if (strcmp(leftByte, DP2_RESULT_REG))
+ {
+ TR_AP("#7");
+ emitcode("mov","%s,%s", DP2_RESULT_REG, leftByte);
+ }
+ // And MSB in A.
+ leftByte = aopGet(AOP(left), offl + MSB16, FALSE, FALSE, NULL);
+ assert(strcmp(leftByte, DP2_RESULT_REG));
+ MOVA(leftByte);
+ }
+ _endLazyDPSEvaluation();
+ *lsb = DP2_RESULT_REG;
+ }
+ else
+ {
+ if (sameRegs (AOP (result), AOP (left)) &&
+ ((offl + MSB16) == offr))
+ {
+ /* don't crash result[offr] */
+ MOVA(aopGet(AOP(left), offl, FALSE, FALSE, NULL));
+ emitcode ("xch", "a,%s",
+ aopGet(AOP(left), offl + MSB16, FALSE, FALSE, DP2_RESULT_REG));
+ }
+ else
+ {
+ movLeft2Result (left, offl, result, offr, 0);
+ MOVA (aopGet (AOP (left), offl + MSB16, FALSE, FALSE, NULL));
+ }
+ *lsb = aopGet(AOP (result), offr, FALSE, FALSE, DP2_RESULT_REG);
+ assert(strcmp(*lsb,"a"));
+ }
+}
+
+static void
+_storeAxResults(char *lsb,
+ operand *result,
+ int offr)
+{
+ _startLazyDPSEvaluation();
+ if (AOP_NEEDSACC(result))
+ {
+ /* We have to explicitly update the result LSB.
+ */
+ emitcode("xch","a,%s", lsb);
+ aopPut(AOP(result), "a", offr);
+ emitcode("mov","a,%s", lsb);
+ }
+ if (getDataSize (result) > 1)
+ {
+ aopPut (AOP (result), "a", offr + MSB16);
+ }
+ _endLazyDPSEvaluation();
+}
+
/*-----------------------------------------------------------------*/
/* shiftL2Left2Result - shift left two bytes from left to result */
/*-----------------------------------------------------------------*/
shiftL2Left2Result (operand * left, int offl,
operand * result, int offr, int shCount)
{
- if (sameRegs (AOP (result), AOP (left)) &&
- ((offl + MSB16) == offr))
- {
- /* don't crash result[offr] */
- MOVA (aopGet (AOP (left), offl, FALSE, FALSE, TRUE));
- emitcode ("xch", "a,%s", aopGet (AOP (left), offl + MSB16, FALSE, FALSE, FALSE));
- }
- else
- {
- movLeft2Result (left, offl, result, offr, 0);
- MOVA (aopGet (AOP (left), offl + MSB16, FALSE, FALSE, TRUE));
- }
- /* ax << shCount (x = lsb(result)) */
- AccAXLsh (aopGet (AOP (result), offr, FALSE, FALSE, FALSE), shCount);
- aopPut (AOP (result), "a", offr + MSB16);
+ char *lsb;
+
+ _loadLeftIntoAx(&lsb, left, result, offl, offr);
+
+ AccAXLsh (lsb, shCount);
+
+ _storeAxResults(lsb, result, offr);
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* shiftR2Left2Result - shift right two bytes from left to result */
/*-----------------------------------------------------------------*/
operand * result, int offr,
int shCount, int sign)
{
- if (sameRegs (AOP (result), AOP (left)) &&
- ((offl + MSB16) == offr))
- {
- /* don't crash result[offr] */
- MOVA (aopGet (AOP (left), offl, FALSE, FALSE, TRUE));
- emitcode ("xch", "a,%s", aopGet (AOP (left), offl + MSB16, FALSE, FALSE, FALSE));
- }
- else
- {
- movLeft2Result (left, offl, result, offr, 0);
- MOVA (aopGet (AOP (left), offl + MSB16, FALSE, FALSE, TRUE));
- }
+ char *lsb;
+
+ _loadLeftIntoAx(&lsb, left, result, offl, offr);
+
/* a:x >> shCount (x = lsb(result)) */
if (sign)
- AccAXRshS (aopGet (AOP (result), offr, FALSE, FALSE, FALSE), shCount);
+ {
+ AccAXRshS(lsb, shCount);
+ }
else
- AccAXRsh (aopGet (AOP (result), offr, FALSE, FALSE, FALSE), shCount);
- if (getDataSize (result) > 1)
- aopPut (AOP (result), "a", offr + MSB16);
+ {
+ AccAXRsh(lsb, shCount);
+ }
+
+ _storeAxResults(lsb, result, offr);
}
#endif
-#if 0
-//REMOVE ME!!!
/*-----------------------------------------------------------------*/
/* shiftLLeftOrResult - shift left one byte from left, or to result */
/*-----------------------------------------------------------------*/
shiftLLeftOrResult (operand * left, int offl,
operand * result, int offr, int shCount)
{
- MOVA (aopGet (AOP (left), offl, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (left), offl, FALSE, FALSE, NULL));
/* shift left accumulator */
AccLsh (shCount);
/* or with result */
- emitcode ("orl", "a,%s", aopGet (AOP (result), offr, FALSE, FALSE, FALSE));
+ emitcode ("orl", "a,%s",
+ aopGet (AOP (result), offr, FALSE, FALSE, DP2_RESULT_REG));
/* back to result */
aopPut (AOP (result), "a", offr);
}
-#endif
#if 0
//REMOVE ME!!!
shiftRLeftOrResult (operand * left, int offl,
operand * result, int offr, int shCount)
{
- MOVA (aopGet (AOP (left), offl, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (left), offl, FALSE, FALSE, NULL));
/* shift right accumulator */
AccRsh (shCount);
/* or with result */
- emitcode ("orl", "a,%s", aopGet (AOP (result), offr, FALSE, FALSE, FALSE));
+ emitcode ("orl", "a,%s",
+ aopGet (AOP (result), offr, FALSE, FALSE, DP2_RESULT_REG));
/* back to result */
aopPut (AOP (result), "a", offr);
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* genlshOne - left shift a one byte quantity by known count */
/*-----------------------------------------------------------------*/
static void
genlshOne (operand * result, operand * left, int shCount)
{
- D (emitcode (";", "genlshOne ");
- );
+ D (emitcode (";", "genlshOne "););
shiftL1Left2Result (left, LSB, result, LSB, shCount);
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* genlshTwo - left shift two bytes by known amount != 0 */
/*-----------------------------------------------------------------*/
{
int size;
- D (emitcode (";", "genlshTwo ");
- );
+ D (emitcode (";", "genlshTwo "););
size = getDataSize (result);
/* if shCount >= 8 */
if (shCount >= 8)
- {
+ {
shCount -= 8;
+ _startLazyDPSEvaluation();
+
if (size > 1)
{
if (shCount)
+ {
+ _endLazyDPSEvaluation();
shiftL1Left2Result (left, LSB, result, MSB16, shCount);
+ aopPut (AOP (result), zero, LSB);
+ }
else
+ {
movLeft2Result (left, LSB, result, MSB16, 0);
+ aopPut (AOP (result), zero, LSB);
+ _endLazyDPSEvaluation();
+ }
}
- aopPut (AOP (result), zero, LSB);
- }
+ else
+ {
+ aopPut (AOP (result), zero, LSB);
+ _endLazyDPSEvaluation();
+ }
+ }
/* 1 <= shCount <= 7 */
else
{
if (size == 1)
+ {
shiftL1Left2Result (left, LSB, result, LSB, shCount);
+ }
else
+ {
shiftL2Left2Result (left, LSB, result, LSB, shCount);
+ }
}
}
#endif
if (size >= LSB + offr)
{
- l = aopGet (AOP (left), LSB, FALSE, FALSE, TRUE);
+ l = aopGet (AOP (left), LSB, FALSE, FALSE, NULL);
MOVA (l);
emitcode ("add", "a,acc");
if (sameRegs (AOP (left), AOP (result)) &&
size >= MSB16 + offr && offr != LSB)
emitcode ("xch", "a,%s",
- aopGet (AOP (left), LSB + offr, FALSE, FALSE, FALSE));
+ aopGet (AOP (left), LSB + offr, FALSE, FALSE, DP2_RESULT_REG));
else
aopPut (AOP (result), "a", LSB + offr);
}
{
if (!(sameRegs (AOP (result), AOP (left)) && size >= MSB16 + offr && offr != LSB))
{
- l = aopGet (AOP (left), MSB16, FALSE, FALSE, TRUE);
- MOVA (l);
+ MOVA (aopGet (AOP (left), MSB16, FALSE, FALSE, TRUE));
}
emitcode ("rlc", "a");
if (sameRegs (AOP (left), AOP (result)) &&
size >= MSB24 + offr && offr != LSB)
emitcode ("xch", "a,%s",
- aopGet (AOP (left), MSB16 + offr, FALSE, FALSE, FALSE));
+ aopGet (AOP (left), MSB16 + offr, FALSE, FALSE, DP2_RESULT_REG));
else
aopPut (AOP (result), "a", MSB16 + offr);
}
{
if (!(sameRegs (AOP (left), AOP (left)) && size >= MSB24 + offr && offr != LSB))
{
- l = aopGet (AOP (left), MSB24, FALSE, FALSE, TRUE);
- MOVA (l);
+ MOVA (aopGet (AOP (left), MSB24, FALSE, FALSE, NULL));
}
emitcode ("rlc", "a");
if (sameRegs (AOP (left), AOP (result)) &&
size >= MSB32 + offr && offr != LSB)
emitcode ("xch", "a,%s",
- aopGet (AOP (left), MSB24 + offr, FALSE, FALSE, FALSE));
+ aopGet (AOP (left), MSB24 + offr, FALSE, FALSE, DP2_RESULT_REG));
else
aopPut (AOP (result), "a", MSB24 + offr);
}
{
if (!(sameRegs (AOP (result), AOP (left)) && size >= MSB32 + offr && offr != LSB))
{
- l = aopGet (AOP (left), MSB32, FALSE, FALSE, TRUE);
- MOVA (l);
+ MOVA (aopGet (AOP (left), MSB32, FALSE, FALSE, NULL));
}
emitcode ("rlc", "a");
aopPut (AOP (result), "a", MSB32 + offr);
movLeft2Result (left, LSB, result, MSB32, 0);
aopPut (AOP (result), zero, LSB);
aopPut (AOP (result), zero, MSB16);
- aopPut (AOP (result), zero, MSB32);
+ aopPut (AOP (result), zero, MSB24);
return;
}
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* genLeftShiftLiteral - left shifting by known count */
/*-----------------------------------------------------------------*/
-static void
+static bool
genLeftShiftLiteral (operand * left,
operand * right,
operand * result,
int shCount = (int) floatFromVal (AOP (right)->aopu.aop_lit);
int size;
- D (emitcode (";", "genLeftShiftLiteral (%d)", shCount);
- );
+ size = getSize (operandType (result));
- freeAsmop (right, NULL, ic, TRUE);
+ D(emitcode (";", "genLeftShiftLiteral (%d), size %d", shCount, size););
- aopOp (left, ic, FALSE, FALSE);
- aopOp (result, ic, FALSE, TRUE);
+ /* We only handle certain easy cases so far. */
+ if ((shCount != 0)
+ && (shCount < (size * 8))
+ && (size != 1)
+ && (size != 2))
+ {
+ D(emitcode (";", "genLeftShiftLiteral wimping out"););
+ return FALSE;
+ }
- size = getSize (operandType (result));
+ freeAsmop (right, NULL, ic, TRUE);
+ aopOp(left, ic, FALSE, FALSE);
+ aopOp(result, ic, FALSE, AOP_USESDPTR(left));
+
+#if 0 // debug spew
+ if (IS_SYMOP(left) && OP_SYMBOL(left)->aop)
+ {
+ emitcode(";", "left (%s) is %d", OP_SYMBOL(left)->rname, AOP_TYPE(left));
+ if (!IS_TRUE_SYMOP(left) && OP_SYMBOL(left)->usl.spillLoc)
+ {
+ emitcode(";", "\taka %s", OP_SYMBOL(left)->usl.spillLoc->rname);
+ }
+ }
+ if (IS_SYMOP(result) && OP_SYMBOL(result)->aop)
+ {
+ emitcode(";", "result (%s) is %d", OP_SYMBOL(result)->rname, AOP_TYPE(result));
+ if (!IS_TRUE_SYMOP(result) && OP_SYMBOL(result)->usl.spillLoc)
+ {
+ emitcode(";", "\taka %s", OP_SYMBOL(result)->usl.spillLoc->rname);
+ }
+ }
+#endif
+
#if VIEW_SIZE
emitcode ("; shift left ", "result %d, left %d", size,
AOP_SIZE (left));
/* I suppose that the left size >= result size */
if (shCount == 0)
- {
- while (size--)
+ {
+ _startLazyDPSEvaluation();
+ while (size--)
{
movLeft2Result (left, size, result, size, 0);
}
- }
-
+ _endLazyDPSEvaluation();
+ }
else if (shCount >= (size * 8))
+ {
+ _startLazyDPSEvaluation();
while (size--)
+ {
aopPut (AOP (result), zero, size);
+ }
+ _endLazyDPSEvaluation();
+ }
else
- {
+ {
switch (size)
{
case 1:
break;
case 2:
- case 3: /* bug: this is for generic pointers, I bet. */
genlshTwo (result, left, shCount);
break;
-
+#if 0
case 4:
genlshFour (result, left, shCount);
break;
+#endif
+ default:
+ fprintf(stderr, "*** ack! mystery literal shift!\n");
+ break;
}
}
freeAsmop (left, NULL, ic, TRUE);
freeAsmop (result, NULL, ic, TRUE);
+ return TRUE;
}
#endif
char *l;
symbol *tlbl, *tlbl1;
- D (emitcode (";", "genLeftShift ");
- );
+ D (emitcode (";", "genLeftShift "););
right = IC_RIGHT (ic);
left = IC_LEFT (ic);
aopOp (right, ic, FALSE, FALSE);
-#if 0
+
+#ifdef BETTER_LITERAL_SHIFT
/* if the shift count is known then do it
as efficiently as possible */
if (AOP_TYPE (right) == AOP_LIT)
{
- genLeftShiftLiteral (left, right, result, ic);
- return;
+ if (genLeftShiftLiteral (left, right, result, ic))
+ {
+ return;
+ }
}
#endif
more that 32 bits make no sense anyway, ( the
largest size of an object can be only 32 bits ) */
- emitcode ("mov", "b,%s", aopGet (AOP (right), 0, FALSE, FALSE, FALSE));
- emitcode ("inc", "b");
+ if (AOP_TYPE (right) == AOP_LIT)
+ {
+ /* Really should be handled by genLeftShiftLiteral,
+ * but since I'm too lazy to fix that today, at least we can make
+ * some small improvement.
+ */
+ emitcode("mov", "b,#!constbyte",
+ ((int) floatFromVal (AOP (right)->aopu.aop_lit)) + 1);
+ }
+ else
+ {
+ MOVB(aopGet (AOP (right), 0, FALSE, FALSE, "b"));
+ emitcode ("inc", "b");
+ }
freeAsmop (right, NULL, ic, TRUE);
aopOp (left, ic, FALSE, FALSE);
- aopOp (result, ic, FALSE, AOP_TYPE (left) == AOP_DPTR);
+ aopOp (result, ic, FALSE, AOP_USESDPTR(left));
/* now move the left to the result if they are not the
same */
_startLazyDPSEvaluation ();
while (size--)
{
- l = aopGet (AOP (left), offset, FALSE, TRUE, FALSE);
+ l = aopGet (AOP (left), offset, FALSE, TRUE, NULL);
if (*l == '@' && (IS_AOP_PREG (result)))
{
{
symbol *tlbl1 = newiTempLabel (NULL);
- l = aopGet (AOP (left), 0, FALSE, FALSE, TRUE);
- MOVA (l);
- emitcode ("sjmp", "%05d$", tlbl1->key + 100);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ MOVA (aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ emitcode ("sjmp", "!tlabel", tlbl1->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
emitcode ("add", "a,acc");
- emitcode ("", "%05d$:", tlbl1->key + 100);
- emitcode ("djnz", "b,%05d$", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl1->key + 100);
+ emitcode ("djnz", "b,!tlabel", tlbl->key + 100);
aopPut (AOP (result), "a", 0);
goto release;
}
reAdjustPreg (AOP (result));
- emitcode ("sjmp", "%05d$", tlbl1->key + 100);
- emitcode ("", "%05d$:", tlbl->key + 100);
- l = aopGet (AOP (result), offset, FALSE, FALSE, TRUE);
- MOVA (l);
+ emitcode ("sjmp", "!tlabel", tlbl1->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
+ MOVA (aopGet (AOP (result), offset, FALSE, FALSE, NULL));
emitcode ("add", "a,acc");
aopPut (AOP (result), "a", offset++);
_startLazyDPSEvaluation ();
while (--size)
{
- l = aopGet (AOP (result), offset, FALSE, FALSE, TRUE);
- MOVA (l);
+ MOVA (aopGet (AOP (result), offset, FALSE, FALSE, NULL));
emitcode ("rlc", "a");
aopPut (AOP (result), "a", offset++);
}
_endLazyDPSEvaluation ();
reAdjustPreg (AOP (result));
- emitcode ("", "%05d$:", tlbl1->key + 100);
- emitcode ("djnz", "b,%05d$", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl1->key + 100);
+ emitcode ("djnz", "b,!tlabel", tlbl->key + 100);
release:
freeAsmop (left, NULL, ic, TRUE);
freeAsmop (result, NULL, ic, TRUE);
}
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* genrshOne - right shift a one byte quantity by known count */
/*-----------------------------------------------------------------*/
genrshOne (operand * result, operand * left,
int shCount, int sign)
{
- D (emitcode (";", "genrshOne");
- );
+ D (emitcode (";", "genrshOne"););
shiftR1Left2Result (left, LSB, result, LSB, shCount, sign);
}
#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* genrshTwo - right shift two bytes by known amount != 0 */
/*-----------------------------------------------------------------*/
genrshTwo (operand * result, operand * left,
int shCount, int sign)
{
- D (emitcode (";", "genrshTwo");
- );
+ D (emitcode (";", "genrshTwo"););
/* if shCount >= 8 */
if (shCount >= 8)
{
shCount -= 8;
+ _startLazyDPSEvaluation();
if (shCount)
+ {
shiftR1Left2Result (left, MSB16, result, LSB,
shCount, sign);
+ }
else
+ {
movLeft2Result (left, MSB16, result, LSB, sign);
+ }
addSign (result, MSB16, sign);
+ _endLazyDPSEvaluation();
}
/* 1 <= shCount <= 7 */
else
+ {
shiftR2Left2Result (left, LSB, result, LSB, shCount, sign);
+ }
}
#endif
-#if 0
-//REMOVE ME!!!
/*-----------------------------------------------------------------*/
/* shiftRLong - shift right one long from left to result */
/* offl = LSB or MSB16 */
shiftRLong (operand * left, int offl,
operand * result, int sign)
{
- if (!sign)
+ int isSameRegs=sameRegs(AOP(left),AOP(result));
+
+ if (isSameRegs && offl>1) {
+ // we are in big trouble, but this shouldn't happen
+ werror(E_INTERNAL_ERROR, __FILE__, __LINE__);
+ }
+
+ MOVA (aopGet (AOP (left), MSB32, FALSE, FALSE, NULL));
+
+ if (offl==MSB16) {
+ // shift is > 8
+ if (sign) {
+ emitcode ("rlc", "a");
+ emitcode ("subb", "a,acc");
+ emitcode ("xch", "a,%s",
+ aopGet(AOP(left), MSB32, FALSE, FALSE, DP2_RESULT_REG));
+ } else {
+ aopPut (AOP(result), zero, MSB32);
+ }
+ }
+
+ if (!sign) {
emitcode ("clr", "c");
- MOVA (aopGet (AOP (left), MSB32, FALSE, FALSE, TRUE));
- if (sign)
+ } else {
emitcode ("mov", "c,acc.7");
- emitcode ("rrc", "a");
- aopPut (AOP (result), "a", MSB32 - offl);
- if (offl == MSB16)
- /* add sign of "a" */
- addSign (result, MSB32, sign);
+ }
- MOVA (aopGet (AOP (left), MSB24, FALSE, FALSE, TRUE));
emitcode ("rrc", "a");
- aopPut (AOP (result), "a", MSB24 - offl);
- MOVA (aopGet (AOP (left), MSB16, FALSE, FALSE, TRUE));
+ if (isSameRegs && offl==MSB16) {
+ emitcode ("xch",
+ "a,%s",aopGet (AOP (left), MSB24, FALSE, FALSE, DP2_RESULT_REG));
+ } else {
+ aopPut (AOP (result), "a", MSB32);
+ MOVA (aopGet (AOP (left), MSB24, FALSE, FALSE, NULL));
+ }
+
+ emitcode ("rrc", "a");
+ if (isSameRegs && offl==1) {
+ emitcode ("xch", "a,%s",
+ aopGet (AOP (left), MSB16, FALSE, FALSE, DP2_RESULT_REG));
+ } else {
+ aopPut (AOP (result), "a", MSB24);
+ MOVA (aopGet (AOP (left), MSB16, FALSE, FALSE, NULL));
+ }
emitcode ("rrc", "a");
aopPut (AOP (result), "a", MSB16 - offl);
if (offl == LSB)
{
- MOVA (aopGet (AOP (left), LSB, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (left), LSB, FALSE, FALSE, NULL));
emitcode ("rrc", "a");
aopPut (AOP (result), "a", LSB);
}
}
-#endif
-#if 0
-//REMOVE ME!!!
/*-----------------------------------------------------------------*/
/* genrshFour - shift four byte by a known amount != 0 */
/*-----------------------------------------------------------------*/
genrshFour (operand * result, operand * left,
int shCount, int sign)
{
- D (emitcode (";", "genrshFour");
- );
+ D (emitcode (";", "genrshFour"););
/* if shifting more that 3 bytes */
if (shCount >= 24)
{
shCount -= 24;
+ _startLazyDPSEvaluation();
if (shCount)
shiftR1Left2Result (left, MSB32, result, LSB, shCount, sign);
else
movLeft2Result (left, MSB32, result, LSB, sign);
addSign (result, MSB16, sign);
+ _endLazyDPSEvaluation();
}
else if (shCount >= 16)
{
shCount -= 16;
+ _startLazyDPSEvaluation();
if (shCount)
shiftR2Left2Result (left, MSB24, result, LSB, shCount, sign);
else
movLeft2Result (left, MSB32, result, MSB16, sign);
}
addSign (result, MSB24, sign);
+ _endLazyDPSEvaluation();
}
else if (shCount >= 8)
{
shCount -= 8;
+ _startLazyDPSEvaluation();
if (shCount == 1)
- shiftRLong (left, MSB16, result, sign);
+ {
+ shiftRLong (left, MSB16, result, sign);
+ }
else if (shCount == 0)
{
movLeft2Result (left, MSB16, result, LSB, 0);
shiftR1Left2Result (left, MSB32, result, MSB24, shCount, sign);
addSign (result, MSB32, sign);
}
+ _endLazyDPSEvaluation();
}
else
- { /* 1 <= shCount <= 7 */
+ {
+ /* 1 <= shCount <= 7 */
if (shCount <= 2)
{
shiftRLong (left, LSB, result, sign);
}
}
}
-#endif
-#if 0
-//REMOVE ME!!!
+#ifdef BETTER_LITERAL_SHIFT
/*-----------------------------------------------------------------*/
/* genRightShiftLiteral - right shifting by known count */
/*-----------------------------------------------------------------*/
-static void
+static bool
genRightShiftLiteral (operand * left,
operand * right,
operand * result,
int shCount = (int) floatFromVal (AOP (right)->aopu.aop_lit);
int size;
- D (emitcode (";", "genRightShiftLiteral");
- );
+ size = getSize (operandType (result));
+
+ D(emitcode (";", "genRightShiftLiteral (%d), size %d", shCount, size););
+
+ /* We only handle certain easy cases so far. */
+ if ((shCount != 0)
+ && (shCount < (size * 8))
+ && (size != 1)
+ && (size != 2)
+ && (size != 4))
+ {
+ D(emitcode (";", "genRightShiftLiteral wimping out"););
+ return FALSE;
+ }
freeAsmop (right, NULL, ic, TRUE);
aopOp (left, ic, FALSE, FALSE);
- aopOp (result, ic, FALSE, AOP_TYPE (left) == AOP_DPTR);
+ aopOp (result, ic, FALSE, AOP_USESDPTR(left));
#if VIEW_SIZE
emitcode ("; shift right ", "result %d, left %d", AOP_SIZE (result),
AOP_SIZE (left));
#endif
- size = getDataSize (left);
/* test the LEFT size !!! */
/* I suppose that the left size >= result size */
if (shCount == 0)
- {
+ {
size = getDataSize (result);
+ _startLazyDPSEvaluation();
while (size--)
+ {
movLeft2Result (left, size, result, size, 0);
- }
-
+ }
+ _endLazyDPSEvaluation();
+ }
else if (shCount >= (size * 8))
{
if (sign)
+ {
/* get sign in acc.7 */
- MOVA (aopGet (AOP (left), size - 1, FALSE, FALSE, TRUE));
+ MOVA (aopGet (AOP (left), size - 1, FALSE, FALSE, NULL));
+ }
addSign (result, LSB, sign);
}
else
case 2:
genrshTwo (result, left, shCount, sign);
break;
-
+#if 1
case 4:
genrshFour (result, left, shCount, sign);
break;
+#endif
default:
break;
}
-
- freeAsmop (left, NULL, ic, TRUE);
- freeAsmop (result, NULL, ic, TRUE);
}
+ freeAsmop (left, NULL, ic, TRUE);
+ freeAsmop (result, NULL, ic, TRUE);
+
+ return TRUE;
}
#endif
char *l;
symbol *tlbl, *tlbl1;
- D (emitcode (";", "genSignedRightShift ");
- );
+ D (emitcode (";", "genSignedRightShift "););
/* we do it the hard way put the shift count in b
and loop thru preserving the sign */
aopOp (right, ic, FALSE, FALSE);
-#if 0
+#ifdef BETTER_LITERAL_SHIFT
if (AOP_TYPE (right) == AOP_LIT)
{
- genRightShiftLiteral (left, right, result, ic, 1);
- return;
+ if (genRightShiftLiteral (left, right, result, ic, 1))
+ {
+ return;
+ }
}
#endif
/* shift count is unknown then we have to form
more that 32 bits make no sense anyway, ( the
largest size of an object can be only 32 bits ) */
- emitcode ("mov", "b,%s", aopGet (AOP (right), 0, FALSE, FALSE, FALSE));
- emitcode ("inc", "b");
+ if (AOP_TYPE (right) == AOP_LIT)
+ {
+ /* Really should be handled by genRightShiftLiteral,
+ * but since I'm too lazy to fix that today, at least we can make
+ * some small improvement.
+ */
+ emitcode("mov", "b,#!constbyte",
+ ((int) floatFromVal (AOP (right)->aopu.aop_lit)) + 1);
+ }
+ else
+ {
+ MOVB(aopGet (AOP (right), 0, FALSE, FALSE, "b"));
+ emitcode ("inc", "b");
+ }
freeAsmop (right, NULL, ic, TRUE);
aopOp (left, ic, FALSE, FALSE);
- aopOp (result, ic, FALSE, AOP_TYPE (left) == AOP_DPTR);
+ aopOp (result, ic, FALSE, AOP_USESDPTR(left));
/* now move the left to the result if they are not the
same */
_startLazyDPSEvaluation ();
while (size--)
{
- l = aopGet (AOP (left), offset, FALSE, TRUE, FALSE);
+ l = aopGet (AOP (left), offset, FALSE, TRUE, NULL);
if (*l == '@' && IS_AOP_PREG (result))
{
size = AOP_SIZE (result);
offset = size - 1;
- emitcode ("mov", "a,%s", aopGet (AOP (left), offset, FALSE, FALSE, FALSE));
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, NULL));
emitcode ("rlc", "a");
emitcode ("mov", "ov,c");
/* if it is only one byte then */
if (size == 1)
{
- l = aopGet (AOP (left), 0, FALSE, FALSE, TRUE);
- MOVA (l);
- emitcode ("sjmp", "%05d$", tlbl1->key + 100);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ MOVA( aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ emitcode ("sjmp", "!tlabel", tlbl1->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
emitcode ("mov", "c,ov");
emitcode ("rrc", "a");
- emitcode ("", "%05d$:", tlbl1->key + 100);
- emitcode ("djnz", "b,%05d$", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl1->key + 100);
+ emitcode ("djnz", "b,!tlabel", tlbl->key + 100);
aopPut (AOP (result), "a", 0);
goto release;
}
reAdjustPreg (AOP (result));
- emitcode ("sjmp", "%05d$", tlbl1->key + 100);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("sjmp", "!tlabel", tlbl1->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
emitcode ("mov", "c,ov");
_startLazyDPSEvaluation ();
while (size--)
{
- l = aopGet (AOP (result), offset, FALSE, FALSE, TRUE);
- MOVA (l);
+ MOVA (aopGet (AOP (result), offset, FALSE, FALSE, NULL));
emitcode ("rrc", "a");
aopPut (AOP (result), "a", offset--);
}
_endLazyDPSEvaluation ();
reAdjustPreg (AOP (result));
- emitcode ("", "%05d$:", tlbl1->key + 100);
- emitcode ("djnz", "b,%05d$", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl1->key + 100);
+ emitcode ("djnz", "b,!tlabel", tlbl->key + 100);
release:
freeAsmop (left, NULL, ic, TRUE);
genRightShift (iCode * ic)
{
operand *right, *left, *result;
- sym_link *retype;
+ sym_link *letype;
int size, offset;
char *l;
symbol *tlbl, *tlbl1;
- D (emitcode (";", "genRightShift ");
- );
+ D (emitcode (";", "genRightShift "););
/* if signed then we do it the hard way preserve the
sign bit moving it inwards */
- retype = getSpec (operandType (IC_RESULT (ic)));
+ letype = getSpec (operandType (IC_LEFT (ic)));
- if (!SPEC_USIGN (retype))
+ if (!SPEC_USIGN (letype))
{
genSignedRightShift (ic);
return;
aopOp (right, ic, FALSE, FALSE);
-#if 0
+#ifdef BETTER_LITERAL_SHIFT
/* 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;
+ if (genRightShiftLiteral (left, right, result, ic, 0))
+ {
+ return;
+ }
}
#endif
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 ) */
-
- emitcode ("mov", "b,%s", aopGet (AOP (right), 0, FALSE, FALSE, FALSE));
- emitcode ("inc", "b");
+
+ if (AOP_TYPE (right) == AOP_LIT)
+ {
+ /* Really should be handled by genRightShiftLiteral,
+ * but since I'm too lazy to fix that today, at least we can make
+ * some small improvement.
+ */
+ emitcode("mov", "b,#!constbyte",
+ ((int) floatFromVal (AOP (right)->aopu.aop_lit)) + 1);
+ }
+ else
+ {
+ MOVB(aopGet (AOP (right), 0, FALSE, FALSE, "b"));
+ emitcode ("inc", "b");
+ }
freeAsmop (right, NULL, ic, TRUE);
aopOp (left, ic, FALSE, FALSE);
- aopOp (result, ic, FALSE, AOP_TYPE (left) == AOP_DPTR);
+ aopOp (result, ic, FALSE, AOP_USESDPTR(left));
/* now move the left to the result if they are not the
same */
_startLazyDPSEvaluation ();
while (size--)
{
- l = aopGet (AOP (left), offset, FALSE, TRUE, FALSE);
+ l = aopGet (AOP (left), offset, FALSE, TRUE, NULL);
if (*l == '@' && IS_AOP_PREG (result))
{
/* if it is only one byte then */
if (size == 1)
{
- l = aopGet (AOP (left), 0, FALSE, FALSE, TRUE);
- MOVA (l);
- emitcode ("sjmp", "%05d$", tlbl1->key + 100);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ MOVA (aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ emitcode ("sjmp", "!tlabel", tlbl1->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
CLRC;
emitcode ("rrc", "a");
- emitcode ("", "%05d$:", tlbl1->key + 100);
- emitcode ("djnz", "b,%05d$", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl1->key + 100);
+ emitcode ("djnz", "b,!tlabel", tlbl->key + 100);
aopPut (AOP (result), "a", 0);
goto release;
}
reAdjustPreg (AOP (result));
- emitcode ("sjmp", "%05d$", tlbl1->key + 100);
- emitcode ("", "%05d$:", tlbl->key + 100);
+ emitcode ("sjmp", "!tlabel", tlbl1->key + 100);
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
CLRC;
_startLazyDPSEvaluation ();
while (size--)
{
- l = aopGet (AOP (result), offset, FALSE, FALSE, TRUE);
- MOVA (l);
+ MOVA (aopGet (AOP (result), offset, FALSE, FALSE, NULL));
emitcode ("rrc", "a");
aopPut (AOP (result), "a", offset--);
}
_endLazyDPSEvaluation ();
reAdjustPreg (AOP (result));
- emitcode ("", "%05d$:", tlbl1->key + 100);
- emitcode ("djnz", "b,%05d$", tlbl->key + 100);
+ emitcode ("", "!tlabeldef", tlbl1->key + 100);
+ emitcode ("djnz", "b,!tlabel", tlbl->key + 100);
release:
freeAsmop (left, NULL, ic, TRUE);
freeAsmop (result, NULL, ic, TRUE);
}
+
/*-----------------------------------------------------------------*/
-/* genUnpackBits - generates code for unpacking bits */
+/* emitPtrByteGet - emits code to get a byte into A through a */
+/* pointer register (R0, R1, or DPTR). The */
+/* original value of A can be preserved in B. */
/*-----------------------------------------------------------------*/
static void
-genUnpackBits (operand * result, char *rname, int ptype)
+emitPtrByteGet (char *rname, int p_type, bool preserveAinB)
{
- int shCnt;
- int rlen = 0;
- sym_link *etype;
- int offset = 0;
+ switch (p_type)
+ {
+ case IPOINTER:
+ case POINTER:
+ if (preserveAinB)
+ emitcode ("mov", "b,a");
+ emitcode ("mov", "a,@%s", rname);
+ break;
- D (emitcode (";", "genUnpackBits ");
- );
+ case PPOINTER:
+ if (preserveAinB)
+ emitcode ("mov", "b,a");
+ emitcode ("movx", "a,@%s", rname);
+ break;
+
+ case FPOINTER:
+ if (preserveAinB)
+ emitcode ("mov", "b,a");
+ emitcode ("movx", "a,@dptr");
+ break;
- etype = getSpec (operandType (result));
+ case CPOINTER:
+ if (preserveAinB)
+ emitcode ("mov", "b,a");
+ emitcode ("clr", "a");
+ emitcode ("movc", "a,@a+dptr");
+ break;
- /* read the first byte */
- switch (ptype)
- {
+ case GPOINTER:
+ if (preserveAinB)
+ {
+ emitcode ("push", "b");
+ emitcode ("push", "acc");
+ }
+ emitcode ("lcall", "__gptrget");
+ if (preserveAinB)
+ emitcode ("pop", "b");
+ break;
+ }
+}
- case POINTER:
+/*-----------------------------------------------------------------*/
+/* emitPtrByteSet - emits code to set a byte from src through a */
+/* pointer register (R0, R1, or DPTR). */
+/*-----------------------------------------------------------------*/
+static void
+emitPtrByteSet (char *rname, int p_type, char *src)
+{
+ switch (p_type)
+ {
case IPOINTER:
- emitcode ("mov", "a,@%s", rname);
+ case POINTER:
+ if (*src=='@')
+ {
+ MOVA (src);
+ emitcode ("mov", "@%s,a", rname);
+ }
+ else
+ emitcode ("mov", "@%s,%s", rname, src);
break;
case PPOINTER:
- emitcode ("movx", "a,@%s", rname);
+ MOVA (src);
+ emitcode ("movx", "@%s,a", rname);
break;
-
+
case FPOINTER:
- emitcode ("movx", "a,@dptr");
- break;
-
- case CPOINTER:
- emitcode ("clr", "a");
- emitcode ("movc", "a", "@a+dptr");
+ MOVA (src);
+ emitcode ("movx", "@dptr,a");
break;
case GPOINTER:
- emitcode ("lcall", "__gptrget");
+ MOVA (src);
+ emitcode ("lcall", "__gptrput");
break;
}
+}
- /* 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);
+/*-----------------------------------------------------------------*/
+/* genUnpackBits - generates code for unpacking bits */
+/*-----------------------------------------------------------------*/
+static void
+genUnpackBits (operand * result, char *rname, int ptype)
+{
+ int offset = 0; /* result byte offset */
+ int rsize; /* result size */
+ int rlen = 0; /* remaining bitfield length */
+ sym_link *etype; /* bitfield type information */
+ int blen; /* bitfield length */
+ int bstr; /* bitfield starting bit within byte */
- emitcode ("anl", "a,#0x%02x",
- ((unsigned char) -1) >> (8 - SPEC_BLEN (etype)));
- aopPut (AOP (result), "a", offset);
- return;
- }
+ D(emitcode ("; genUnpackBits",""));
- /* bit field did not fit in a byte */
- rlen = SPEC_BLEN (etype) - 8;
- aopPut (AOP (result), "a", offset++);
+ etype = getSpec (operandType (result));
+ rsize = getSize (operandType (result));
+ blen = SPEC_BLEN (etype);
+ bstr = SPEC_BSTR (etype);
- while (1)
+ /* If the bitfield length is less than a byte */
+ if (blen < 8)
{
-
- switch (ptype)
- {
- case POINTER:
- case IPOINTER:
- emitcode ("inc", "%s", rname);
- emitcode ("mov", "a,@%s", rname);
- break;
-
- case PPOINTER:
- emitcode ("inc", "%s", rname);
- emitcode ("movx", "a,@%s", rname);
- break;
-
- case FPOINTER:
- emitcode ("inc", "dptr");
- emitcode ("movx", "a,@dptr");
- break;
-
- case CPOINTER:
- emitcode ("clr", "a");
- emitcode ("inc", "dptr");
- emitcode ("movc", "a", "@a+dptr");
- break;
-
- case GPOINTER:
- emitcode ("inc", "dptr");
- emitcode ("lcall", "__gptrget");
- break;
- }
-
- rlen -= 8;
- /* if we are done */
- if (rlen < 8)
- break;
-
+ emitPtrByteGet (rname, ptype, FALSE);
+ AccRsh (bstr);
+ emitcode ("anl", "a,#!constbyte", ((unsigned char) -1) >> (8 - blen));
aopPut (AOP (result), "a", offset++);
+ goto finish;
+ }
+ /* Bit field did not fit in a byte. Copy all
+ but the partial byte at the end. */
+ for (rlen=blen;rlen>=8;rlen-=8)
+ {
+ emitPtrByteGet (rname, ptype, FALSE);
+ aopPut (AOP (result), "a", offset++);
+ if (rlen>8)
+ emitcode ("inc", "%s", rname);
}
+ /* Handle the partial byte at the end */
if (rlen)
{
- emitcode ("anl", "a,#0x%02x", ((unsigned char) -1) >> (rlen));
- aopPut (AOP (result), "a", offset);
+ emitPtrByteGet (rname, ptype, FALSE);
+ emitcode ("anl", "a,#!constbyte", ((unsigned char) -1) >> (8-rlen));
+ aopPut (AOP (result), "a", offset++);
}
- return;
+finish:
+ if (offset < rsize)
+ {
+ rsize -= offset;
+ while (rsize--)
+ aopPut (AOP (result), zero, offset++);
+ }
}
iCode * ic)
{
char *l;
- char buffer[256];
+ char buff[256];
int size, offset = 0;
aopOp (result, ic, TRUE, FALSE);
/* get the string representation of the name */
- l = aopGet (AOP (left), 0, FALSE, TRUE, FALSE);
+ l = aopGet (AOP (left), 0, FALSE, TRUE, NULL);
size = AOP_SIZE (result);
_startLazyDPSEvaluation ();
while (size--)
{
- if (offset)
- sprintf (buffer, "(%s + %d)", l + 1, offset);
- else
- sprintf (buffer, "%s", l + 1);
- aopPut (AOP (result), buffer, offset++);
+ if (offset)
+ {
+ SNPRINTF (buff, sizeof(buff),
+ "(%s + %d)", l + 1, offset);
+ }
+ else
+ {
+ SNPRINTF (buff, sizeof(buff),
+ "%s", l + 1);
+ }
+ aopPut (AOP (result), buff, offset++);
}
_endLazyDPSEvaluation ();
static void
genNearPointerGet (operand * left,
operand * result,
- iCode * ic)
+ iCode * ic,
+ iCode *pi)
{
asmop *aop = NULL;
- regs *preg = NULL;
+ regs *preg;
char *rname;
sym_link *rtype, *retype, *letype;
sym_link *ltype = operandType (left);
- char buffer[80];
+ char buff[80];
rtype = operandType (result);
retype = getSpec (rtype);
aopOp (left, ic, FALSE, FALSE);
/* if left is rematerialisable and
- result is not bit variable type and
+ result is not bitfield variable type and
the left is pointer to data space i.e
lower 128 bytes of space */
if (AOP_TYPE (left) == AOP_IMMD &&
- !IS_BITVAR (retype) &&
- !IS_BITVAR (letype) &&
+ !IS_BITFIELD (retype) &&
+ !IS_BITFIELD (letype) &&
DCL_TYPE (ltype) == POINTER)
{
genDataPointerGet (left, result, ic);
preg = getFreePtr (ic, &aop, FALSE);
emitcode ("mov", "%s,%s",
preg->name,
- aopGet (AOP (left), 0, FALSE, TRUE, FALSE));
+ aopGet (AOP (left), 0, FALSE, TRUE, DP2_RESULT_REG));
rname = preg->name;
}
else
- rname = aopGet (AOP (left), 0, FALSE, FALSE, FALSE);
+ rname = aopGet (AOP (left), 0, FALSE, FALSE, DP2_RESULT_REG);
freeAsmop (left, NULL, ic, TRUE);
aopOp (result, ic, FALSE, FALSE);
/* if bitfield then unpack the bits */
- if (IS_BITVAR (retype) || IS_BITVAR (letype))
+ if (IS_BITFIELD (retype) || IS_BITFIELD (letype))
genUnpackBits (result, rname, POINTER);
else
{
}
else
{
- sprintf (buffer, "@%s", rname);
- aopPut (AOP (result), buffer, offset);
+ SNPRINTF (buff, sizeof(buff), "@%s", rname);
+ aopPut (AOP (result), buff, offset);
}
offset++;
- if (size)
- emitcode ("inc", "%s", rname);
+ if (size || pi)
+ {
+ emitcode ("inc", "%s", rname);
+ }
}
}
if (aop)
{
/* we had to allocate for this iCode */
+ if (pi) { /* post increment present */
+ aopPut(AOP ( left ),rname,0);
+ }
freeAsmop (NULL, aop, ic, TRUE);
}
else
if (AOP_SIZE (result) > 1 &&
!OP_SYMBOL (left)->remat &&
(OP_SYMBOL (left)->liveTo > ic->seq ||
- ic->depth))
+ ic->depth) &&
+ !pi)
{
int size = AOP_SIZE (result) - 1;
while (size--)
/* done */
freeAsmop (result, NULL, ic, TRUE);
-
+ if (pi) pi->generated = 1;
}
/*-----------------------------------------------------------------*/
static void
genPagedPointerGet (operand * left,
operand * result,
- iCode * ic)
+ iCode * ic,
+ iCode * pi)
{
asmop *aop = NULL;
- regs *preg = NULL;
+ regs *preg;
char *rname;
sym_link *rtype, *retype, *letype;
preg = getFreePtr (ic, &aop, FALSE);
emitcode ("mov", "%s,%s",
preg->name,
- aopGet (AOP (left), 0, FALSE, TRUE, FALSE));
+ aopGet (AOP (left), 0, FALSE, TRUE, NULL));
rname = preg->name;
}
else
- rname = aopGet (AOP (left), 0, FALSE, FALSE, FALSE);
+ rname = aopGet (AOP (left), 0, FALSE, FALSE, NULL);
freeAsmop (left, NULL, ic, TRUE);
aopOp (result, ic, FALSE, FALSE);
/* if bitfield then unpack the bits */
- if (IS_BITVAR (retype) || IS_BITVAR (letype))
+ if (IS_BITFIELD (retype) || IS_BITFIELD (letype))
genUnpackBits (result, rname, PPOINTER);
else
{
offset++;
- if (size)
+ if (size || pi)
emitcode ("inc", "%s", rname);
}
}
if (aop)
{
/* we had to allocate for this iCode */
+ if (pi) aopPut ( AOP (left), rname, 0);
freeAsmop (NULL, aop, ic, TRUE);
}
else
if (AOP_SIZE (result) > 1 &&
!OP_SYMBOL (left)->remat &&
(OP_SYMBOL (left)->liveTo > ic->seq ||
- ic->depth))
+ ic->depth) &&
+ !pi)
{
int size = AOP_SIZE (result) - 1;
while (size--)
/* done */
freeAsmop (result, NULL, ic, TRUE);
-
-
+ if (pi) pi->generated = 1;
}
/*-----------------------------------------------------------------*/
/*-----------------------------------------------------------------*/
static void
genFarPointerGet (operand * left,
- operand * result, iCode * ic)
+ operand * result, iCode * ic, iCode *pi)
{
- int size, offset;
+ int size, offset, dopi=1;
sym_link *retype = getSpec (operandType (result));
sym_link *letype = getSpec (operandType (left));
- D (emitcode (";", "genFarPointerGet");
- );
+ D (emitcode (";", "genFarPointerGet"););
aopOp (left, ic, FALSE, 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 (AOP_TYPE (left) != AOP_STR && !AOP_INDPTRn(left) )
{
/* if this is remateriazable */
if (AOP_TYPE (left) == AOP_IMMD)
{
- emitcode ("mov", "dptr,%s", aopGet (AOP (left), 0, TRUE, FALSE, FALSE));
+ emitcode ("mov", "dptr,%s", aopGet (AOP (left), 0, TRUE, FALSE, NULL));
}
else
{
_startLazyDPSEvaluation ();
if (AOP_TYPE (left) != AOP_DPTR)
{
- emitcode ("mov", "dpl,%s", aopGet (AOP (left), 0, FALSE, FALSE, TRUE));
- emitcode ("mov", "dph,%s", aopGet (AOP (left), 1, FALSE, FALSE, TRUE));
- emitcode ("mov", "dpx,%s", aopGet (AOP (left), 2, FALSE, FALSE, TRUE));
+ emitcode ("mov", "dpl,%s", aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph,%s", aopGet (AOP (left), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24)
+ emitcode ("mov", "dpx,%s", aopGet (AOP (left), 2, FALSE, FALSE, NULL));
}
else
{
/* We need to generate a load to DPTR indirect through DPTR. */
- D (emitcode (";", "genFarPointerGet -- indirection special case.");
- );
- emitcode ("push", "%s", aopGet (AOP (left), 0, FALSE, TRUE, TRUE));
- emitcode ("push", "%s", aopGet (AOP (left), 1, FALSE, TRUE, TRUE));
- emitcode ("mov", "dpx,%s", aopGet (AOP (left), 2, FALSE, FALSE, TRUE));
+ D (emitcode (";", "genFarPointerGet -- indirection special case."););
+ emitcode ("push", "%s", aopGet (AOP (left), 0, FALSE, TRUE, NULL));
+ emitcode ("push", "%s", aopGet (AOP (left), 1, FALSE, TRUE, NULL));
+ if (options.model == MODEL_FLAT24)
+ emitcode ("mov", "dpx,%s", aopGet (AOP (left), 2, FALSE, FALSE, NULL));
emitcode ("pop", "dph");
emitcode ("pop", "dpl");
+ dopi =0;
}
_endLazyDPSEvaluation ();
}
}
/* so dptr know contains the address */
- freeAsmop (left, NULL, ic, TRUE);
- aopOp (result, ic, FALSE, TRUE);
+ aopOp (result, ic, FALSE, (AOP_INDPTRn(left) ? FALSE : TRUE));
/* if bit then unpack */
- if (IS_BITVAR (retype) || IS_BITVAR (letype))
- genUnpackBits (result, "dptr", FPOINTER);
- else
+ if (IS_BITFIELD (retype) || IS_BITFIELD (letype)) {
+ if (AOP_INDPTRn(left)) {
+ genSetDPTR(AOP(left)->aopu.dptr);
+ }
+ genUnpackBits (result, "dptr", FPOINTER);
+ if (AOP_INDPTRn(left)) {
+ genSetDPTR(0);
+ }
+ } else
{
size = AOP_SIZE (result);
offset = 0;
- _startLazyDPSEvaluation ();
- while (size--)
- {
-
- genSetDPTR (0);
- _flushLazyDPS ();
-
- emitcode ("movx", "a,@dptr");
- if (size)
- emitcode ("inc", "dptr");
-
- aopPut (AOP (result), "a", offset++);
- }
- _endLazyDPSEvaluation ();
+ if (AOP_INDPTRn(left) && AOP_USESDPTR(result)) {
+ while (size--) {
+ genSetDPTR(AOP(left)->aopu.dptr);
+ emitcode ("movx", "a,@dptr");
+ if (size || (dopi && pi && AOP_TYPE (left) != AOP_IMMD))
+ emitcode ("inc", "dptr");
+ genSetDPTR (0);
+ aopPut (AOP (result), "a", offset++);
+ }
+ } else {
+ _startLazyDPSEvaluation ();
+ while (size--) {
+ if (AOP_INDPTRn(left)) {
+ genSetDPTR(AOP(left)->aopu.dptr);
+ } else {
+ genSetDPTR (0);
+ }
+ _flushLazyDPS ();
+
+ emitcode ("movx", "a,@dptr");
+ if (size || (dopi && pi && AOP_TYPE (left) != AOP_IMMD))
+ emitcode ("inc", "dptr");
+
+ aopPut (AOP (result), "a", offset++);
+ }
+ _endLazyDPSEvaluation ();
+ }
}
+ if (dopi && pi && AOP_TYPE (left) != AOP_IMMD) {
+ if (!AOP_INDPTRn(left)) {
+ _startLazyDPSEvaluation ();
+ aopPut ( AOP (left), "dpl", 0);
+ aopPut ( AOP (left), "dph", 1);
+ if (options.model == MODEL_FLAT24)
+ aopPut ( AOP (left), "dpx", 2);
+ _endLazyDPSEvaluation ();
+ }
+ pi->generated = 1;
+ } else if ((AOP_IS_STR(left) || AOP_INDPTRn(left)) &&
+ AOP_SIZE(result) > 1 &&
+ IS_SYMOP(left) &&
+ (OP_SYMBOL(left)->liveTo > ic->seq || ic->depth)) {
+
+ size = AOP_SIZE (result) - 1;
+ if (AOP_INDPTRn(left)) {
+ genSetDPTR(AOP(left)->aopu.dptr);
+ }
+ while (size--) emitcode ("lcall","__decdptr");
+ if (AOP_INDPTRn(left)) {
+ genSetDPTR(0);
+ }
+ }
+ freeAsmop (left, NULL, ic, TRUE);
freeAsmop (result, NULL, ic, TRUE);
}
/*-----------------------------------------------------------------*/
-/* emitcodePointerGet - gget value from code space */
+/* genCodePointerGet - get value from code space */
/*-----------------------------------------------------------------*/
static void
-emitcodePointerGet (operand * left,
- operand * result, iCode * ic)
+genCodePointerGet (operand * left,
+ operand * result, iCode * ic, iCode *pi)
{
- int size, offset;
+ int size, offset, dopi=1;
sym_link *retype = getSpec (operandType (result));
aopOp (left, ic, FALSE, 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 (AOP_TYPE (left) != AOP_STR && !AOP_INDPTRn(left))
{
/* if this is remateriazable */
if (AOP_TYPE (left) == AOP_IMMD)
{
- emitcode ("mov", "dptr,%s", aopGet (AOP (left), 0, TRUE, FALSE, FALSE));
+ emitcode ("mov", "dptr,%s", aopGet (AOP (left), 0, TRUE, FALSE, NULL));
}
else
{ /* we need to get it byte by byte */
_startLazyDPSEvaluation ();
if (AOP_TYPE (left) != AOP_DPTR)
{
- emitcode ("mov", "dpl,%s", aopGet (AOP (left), 0, FALSE, FALSE, TRUE));
- emitcode ("mov", "dph,%s", aopGet (AOP (left), 1, FALSE, FALSE, TRUE));
- emitcode ("mov", "dpx,%s", aopGet (AOP (left), 2, FALSE, FALSE, TRUE));
+ emitcode ("mov", "dpl,%s", aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph,%s", aopGet (AOP (left), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24)
+ emitcode ("mov", "dpx,%s", aopGet (AOP (left), 2, FALSE, FALSE, NULL));
}
else
{
/* We need to generate a load to DPTR indirect through DPTR. */
- D (emitcode (";", "gencodePointerGet -- indirection special case.");
- );
- emitcode ("push", "%s", aopGet (AOP (left), 0, FALSE, TRUE, TRUE));
- emitcode ("push", "%s", aopGet (AOP (left), 1, FALSE, TRUE, TRUE));
- emitcode ("mov", "dpx,%s", aopGet (AOP (left), 2, FALSE, FALSE, TRUE));
+ D (emitcode (";", "gencodePointerGet -- indirection special case."););
+ emitcode ("push", "%s", aopGet (AOP (left), 0, FALSE, TRUE, NULL));
+ emitcode ("push", "%s", aopGet (AOP (left), 1, FALSE, TRUE, NULL));
+ if (options.model == MODEL_FLAT24)
+ emitcode ("mov", "dpx,%s", aopGet (AOP (left), 2, FALSE, FALSE, NULL));
emitcode ("pop", "dph");
emitcode ("pop", "dpl");
+ dopi=0;
}
_endLazyDPSEvaluation ();
}
}
/* so dptr know contains the address */
- freeAsmop (left, NULL, ic, TRUE);
- aopOp (result, ic, FALSE, TRUE);
+ aopOp (result, ic, FALSE, (AOP_INDPTRn(left) ? FALSE : TRUE));
/* if bit then unpack */
- if (IS_BITVAR (retype))
- genUnpackBits (result, "dptr", CPOINTER);
- else
+ if (IS_BITFIELD (retype)) {
+ if (AOP_INDPTRn(left)) {
+ genSetDPTR(AOP(left)->aopu.dptr);
+ }
+ genUnpackBits (result, "dptr", CPOINTER);
+ if (AOP_INDPTRn(left)) {
+ genSetDPTR(0);
+ }
+ } else
{
size = AOP_SIZE (result);
offset = 0;
-
- _startLazyDPSEvaluation ();
- while (size--)
- {
- genSetDPTR (0);
- _flushLazyDPS ();
-
- emitcode ("clr", "a");
- emitcode ("movc", "a,@a+dptr");
- if (size)
- emitcode ("inc", "dptr");
- aopPut (AOP (result), "a", offset++);
- }
- _endLazyDPSEvaluation ();
+ if (AOP_INDPTRn(left) && AOP_USESDPTR(result)) {
+ while (size--) {
+ genSetDPTR(AOP(left)->aopu.dptr);
+ emitcode ("clr", "a");
+ emitcode ("movc", "a,@a+dptr");
+ if (size || (dopi && pi && AOP_TYPE (left) != AOP_IMMD))
+ emitcode ("inc", "dptr");
+ genSetDPTR (0);
+ aopPut (AOP (result), "a", offset++);
+ }
+ } else {
+ _startLazyDPSEvaluation ();
+ while (size--)
+ {
+ if (AOP_INDPTRn(left)) {
+ genSetDPTR(AOP(left)->aopu.dptr);
+ } else {
+ genSetDPTR (0);
+ }
+ _flushLazyDPS ();
+
+ emitcode ("clr", "a");
+ emitcode ("movc", "a,@a+dptr");
+ if (size || (dopi && pi && AOP_TYPE (left) != AOP_IMMD))
+ emitcode ("inc", "dptr");
+ aopPut (AOP (result), "a", offset++);
+ }
+ _endLazyDPSEvaluation ();
+ }
}
+ if (dopi && pi && AOP_TYPE (left) != AOP_IMMD) {
+ if (!AOP_INDPTRn(left)) {
+ _startLazyDPSEvaluation ();
+
+ aopPut ( AOP (left), "dpl", 0);
+ aopPut ( AOP (left), "dph", 1);
+ if (options.model == MODEL_FLAT24)
+ aopPut ( AOP (left), "dpx", 2);
+ _endLazyDPSEvaluation ();
+ }
+ pi->generated = 1;
+ } else if ((OP_SYMBOL(left)->ruonly || AOP_INDPTRn(left)) &&
+ AOP_SIZE(result) > 1 &&
+ (OP_SYMBOL (left)->liveTo > ic->seq || ic->depth)) {
+
+ size = AOP_SIZE (result) - 1;
+ if (AOP_INDPTRn(left)) {
+ genSetDPTR(AOP(left)->aopu.dptr);
+ }
+ while (size--) emitcode ("lcall","__decdptr");
+ if (AOP_INDPTRn(left)) {
+ genSetDPTR(0);
+ }
+ }
+
+ freeAsmop (left, NULL, ic, TRUE);
freeAsmop (result, NULL, ic, TRUE);
}
/*-----------------------------------------------------------------*/
static void
genGenPointerGet (operand * left,
- operand * result, iCode * ic)
+ operand * result, iCode * ic, iCode * pi)
{
int size, offset;
sym_link *retype = getSpec (operandType (result));
D (emitcode (";", "genGenPointerGet "); );
- aopOp (left, ic, FALSE, TRUE);
+ aopOp (left, ic, FALSE, (AOP_IS_STR(left) ? FALSE : TRUE));
/* if the operand is already in dptr
then we do nothing else we move the value to dptr */
/* if this is remateriazable */
if (AOP_TYPE (left) == AOP_IMMD)
{
- emitcode ("mov", "dptr,%s", aopGet (AOP (left), 0, TRUE, FALSE, FALSE));
- emitcode ("mov", "b,#%d", pointerCode (retype));
+ emitcode ("mov", "dptr,%s", aopGet (AOP (left), 0, TRUE, FALSE, NULL));
+ if (AOP(left)->aopu.aop_immd.from_cast_remat)
+ {
+ MOVB(aopGet(AOP (left), AOP_SIZE(left)-1, FALSE, FALSE, NULL));
+ }
+ else
+ {
+ emitcode ("mov", "b,#%d", pointerCode (retype));
+ }
}
else
{ /* we need to get it byte by byte */
- _startLazyDPSEvaluation ();
- if (AOP(left)->type==AOP_DPTR2) {
- char *l;
- l=aopGet(AOP(left),0,FALSE,FALSE,TRUE);
- genSetDPTR(0);
- _flushLazyDPS();
- emitcode ("mov", "dpl,%s ;jwk lazy genGenPointerGet", l);
- l=aopGet(AOP(left),1,FALSE,FALSE,TRUE);
- genSetDPTR(0);
- _flushLazyDPS();
- emitcode ("mov", "dph,%s ;jwk lazy genGenPointerGet", l);
- l=aopGet(AOP(left),2,FALSE,FALSE,TRUE);
- genSetDPTR(0);
- _flushLazyDPS();
- emitcode ("mov", "dpx,%s ;jwk lazy genGenPointerGet", l);
- emitcode ("mov", "b,%s", aopGet (AOP(left),3,FALSE,FALSE,TRUE));
- } else {
- emitcode ("mov", "dpl,%s", aopGet (AOP(left),0,FALSE,FALSE,TRUE));
- emitcode ("mov", "dph,%s", aopGet (AOP(left),1,FALSE,FALSE,TRUE));
- emitcode ("mov", "dpx,%s", aopGet (AOP(left),2,FALSE,FALSE,TRUE));
- emitcode ("mov", "b,%s", aopGet (AOP(left),3,FALSE,FALSE,TRUE));
- }
- _endLazyDPSEvaluation ();
+ _startLazyDPSEvaluation ();
+ emitcode ("mov", "dpl,%s", aopGet (AOP(left),0,FALSE,FALSE,NULL));
+ emitcode ("mov", "dph,%s", aopGet (AOP(left),1,FALSE,FALSE,NULL));
+ if (options.model == MODEL_FLAT24) {
+ emitcode ("mov", "dpx,%s", aopGet (AOP(left),2,FALSE,FALSE,NULL));
+ emitcode ("mov", "b,%s", aopGet (AOP(left),3,FALSE,FALSE,NULL));
+ } else {
+ emitcode ("mov", "b,%s", aopGet (AOP(left),2,FALSE,FALSE,NULL));
+ }
+ _endLazyDPSEvaluation ();
}
}
- /* so dptr know contains the address */
- freeAsmop (left, NULL, ic, TRUE);
+
+ /* so dptr-b now contains the address */
+ _G.bInUse++;
aopOp (result, ic, FALSE, TRUE);
+ _G.bInUse--;
/* if bit then unpack */
- if (IS_BITVAR (retype) || IS_BITVAR (letype))
+ if (IS_BITFIELD (retype) || IS_BITFIELD (letype))
+ {
genUnpackBits (result, "dptr", GPOINTER);
+ }
else
{
- size = AOP_SIZE (result);
- offset = 0;
+ size = AOP_SIZE (result);
+ offset = 0;
- while (size--)
+ while (size--)
{
- emitcode ("lcall", "__gptrget");
- aopPut (AOP (result), "a", offset++);
- if (size)
- emitcode ("inc", "dptr");
+ if (size)
+ {
+ // Get two bytes at a time, results in _AP & A.
+ // dptr will be incremented ONCE by __gptrgetWord.
+ //
+ // Note: any change here must be coordinated
+ // with the implementation of __gptrgetWord
+ // in device/lib/_gptrget.c
+ emitcode ("lcall", "__gptrgetWord");
+ aopPut (AOP (result), DP2_RESULT_REG, offset++);
+ aopPut (AOP (result), "a", offset++);
+ size--;
+ }
+ else
+ {
+ // Only one byte to get.
+ emitcode ("lcall", "__gptrget");
+ aopPut (AOP (result), "a", offset++);
+ }
+
+ if (size || (pi && AOP_TYPE (left) != AOP_IMMD))
+ {
+ emitcode ("inc", "dptr");
+ }
}
}
+ if (pi && AOP_TYPE (left) != AOP_IMMD) {
+ _startLazyDPSEvaluation ();
+
+ aopPut ( AOP (left), "dpl", 0);
+ aopPut ( AOP (left), "dph", 1);
+ if (options.model == MODEL_FLAT24) {
+ aopPut ( AOP (left), "dpx", 2);
+ aopPut ( AOP (left), "b", 3);
+ } else aopPut ( AOP (left), "b", 2);
+
+ _endLazyDPSEvaluation ();
+
+ pi->generated = 1;
+ } else if (OP_SYMBOL(left)->ruonly && AOP_SIZE(result) > 1 &&
+ (OP_SYMBOL (left)->liveTo > ic->seq || ic->depth)) {
+
+ size = AOP_SIZE (result) - 1;
+ while (size--) emitcode ("lcall","__decdptr");
+ }
+
+ freeAsmop (left, NULL, ic, TRUE);
freeAsmop (result, NULL, ic, TRUE);
}
/* genPointerGet - generate code for pointer get */
/*-----------------------------------------------------------------*/
static void
-genPointerGet (iCode * ic)
+genPointerGet (iCode * ic, iCode *pi)
{
operand *left, *result;
sym_link *type, *etype;
/* we have to go by the storage class */
p_type = PTR_TYPE (SPEC_OCLS (etype));
}
-
+ /* special case when cast remat */
+ if (p_type == GPOINTER && OP_SYMBOL(left)->remat &&
+ IS_CAST_ICODE(OP_SYMBOL(left)->rematiCode)) {
+ left = IC_RIGHT(OP_SYMBOL(left)->rematiCode);
+ type = operandType (left);
+ p_type = DCL_TYPE (type);
+ }
/* now that we have the pointer type we assign
the pointer values */
switch (p_type)
case POINTER:
case IPOINTER:
- genNearPointerGet (left, result, ic);
+ genNearPointerGet (left, result, ic, pi);
break;
case PPOINTER:
- genPagedPointerGet (left, result, ic);
+ genPagedPointerGet (left, result, ic, pi);
break;
case FPOINTER:
- genFarPointerGet (left, result, ic);
+ genFarPointerGet (left, result, ic, pi);
break;
case CPOINTER:
- emitcodePointerGet (left, result, ic);
+ genCodePointerGet (left, result, ic, pi);
break;
case GPOINTER:
- genGenPointerGet (left, result, ic);
+ genGenPointerGet (left, result, ic, pi);
break;
}
operand * right,
char *rname, int p_type)
{
- int shCount = 0;
- int offset = 0;
- int rLen = 0;
- int blen, bstr;
- char *l;
-
- blen = SPEC_BLEN (etype);
- bstr = SPEC_BSTR (etype);
-
- l = aopGet (AOP (right), offset++, FALSE, FALSE, TRUE);
- MOVA (l);
-
- /* if the bit lenth is less than or */
- /* it exactly fits a byte then */
- if (SPEC_BLEN (etype) <= 8)
- {
- shCount = SPEC_BSTR (etype);
-
- /* shift left acc */
- AccLsh (shCount);
-
- if (SPEC_BLEN (etype) < 8)
- { /* if smaller than a byte */
-
-
- switch (p_type)
- {
- case POINTER:
- emitcode ("mov", "b,a");
- emitcode ("mov", "a,@%s", rname);
- break;
-
- case FPOINTER:
- emitcode ("mov", "b,a");
- emitcode ("movx", "a,@dptr");
- break;
-
- case GPOINTER:
- emitcode ("push", "b");
- emitcode ("push", "acc");
- emitcode ("lcall", "__gptrget");
- emitcode ("pop", "b");
- break;
- }
-
- emitcode ("anl", "a,#0x%02x", (unsigned char)
- ((unsigned char) (0xFF << (blen + bstr)) |
- (unsigned char) (0xFF >> (8 - bstr))));
- emitcode ("orl", "a,b");
- if (p_type == GPOINTER)
- emitcode ("pop", "b");
- }
- }
-
- switch (p_type)
- {
- case POINTER:
- emitcode ("mov", "@%s,a", rname);
- break;
-
- case FPOINTER:
- emitcode ("movx", "@dptr,a");
- break;
-
- case GPOINTER:
- emitcode ("lcall", "__gptrput");
- break;
- }
-
- /* if we r done */
- if (SPEC_BLEN (etype) <= 8)
- return;
-
- emitcode ("inc", "%s", rname);
- rLen = SPEC_BLEN (etype);
-
- /* now generate for lengths greater than one byte */
- while (1)
- {
-
- l = aopGet (AOP (right), offset++, FALSE, TRUE, FALSE);
-
- rLen -= 8;
- if (rLen < 8)
- break;
-
- switch (p_type)
- {
- case POINTER:
- if (*l == '@')
- {
- MOVA (l);
- emitcode ("mov", "@%s,a", rname);
- }
- else
- emitcode ("mov", "@%s,%s", rname, l);
- break;
-
- case FPOINTER:
- MOVA (l);
- emitcode ("movx", "@dptr,a");
- break;
-
- case GPOINTER:
- MOVA (l);
- emitcode ("lcall", "__gptrput");
- break;
- }
- emitcode ("inc", "%s", rname);
- }
-
- MOVA (l);
-
- /* last last was not complete */
- if (rLen)
- {
- /* save the byte & read byte */
- switch (p_type)
- {
- case POINTER:
- emitcode ("mov", "b,a");
- emitcode ("mov", "a,@%s", rname);
- break;
-
- case FPOINTER:
- emitcode ("mov", "b,a");
- emitcode ("movx", "a,@dptr");
- break;
+ int offset = 0; /* source byte offset */
+ int rlen = 0; /* remaining bitfield length */
+ int blen; /* bitfield length */
+ int bstr; /* bitfield starting bit within byte */
+ int litval; /* source literal value (if AOP_LIT) */
+ unsigned char mask; /* bitmask within current byte */
- case GPOINTER:
- emitcode ("push", "b");
- emitcode ("push", "acc");
- emitcode ("lcall", "__gptrget");
- emitcode ("pop", "b");
- break;
- }
+ D(emitcode ("; genPackBits",""));
- emitcode ("anl", "a,#0x%02x", ((unsigned char) -1 << rLen));
- emitcode ("orl", "a,b");
- }
+ blen = SPEC_BLEN (etype);
+ bstr = SPEC_BSTR (etype);
- if (p_type == GPOINTER)
- emitcode ("pop", "b");
+ /* If the bitfield length is less than a byte */
+ if (blen < 8)
+ {
+ mask = ((unsigned char) (0xFF << (blen + bstr)) |
+ (unsigned char) (0xFF >> (8 - bstr)));
- switch (p_type)
+ if (AOP_TYPE (right) == AOP_LIT)
+ {
+ /* Case with a bitfield length <8 and literal source
+ */
+ litval = (int) floatFromVal (AOP (right)->aopu.aop_lit);
+ litval <<= bstr;
+ litval &= (~mask) & 0xff;
+ emitPtrByteGet (rname, p_type, FALSE);
+ if ((mask|litval)!=0xff)
+ emitcode ("anl","a,#!constbyte", mask);
+ if (litval)
+ emitcode ("orl","a,#!constbyte", litval);
+ }
+ else
+ {
+ if ((blen==1) && (p_type!=GPOINTER))
+ {
+ /* Case with a bitfield length == 1 and no generic pointer
+ */
+ if (AOP_TYPE (right) == AOP_CRY)
+ emitcode ("mov", "c,%s", AOP(right)->aopu.aop_dir);
+ else
+ {
+ MOVA (aopGet (AOP (right), 0, FALSE, FALSE, NULL));
+ emitcode ("rrc","a");
+ }
+ emitPtrByteGet (rname, p_type, FALSE);
+ emitcode ("mov","acc.%d,c",bstr);
+ }
+ else
+ {
+ /* Case with a bitfield length < 8 and arbitrary source
+ */
+ MOVA (aopGet (AOP (right), 0, FALSE, FALSE, NULL));
+ /* shift and mask source value */
+ AccLsh (bstr);
+ emitcode ("anl", "a,#!constbyte", (~mask) & 0xff);
+
+ /* transfer A to B and get next byte */
+ emitPtrByteGet (rname, p_type, TRUE);
+
+ emitcode ("anl", "a,#!constbyte", mask);
+ emitcode ("orl", "a,b");
+ if (p_type == GPOINTER)
+ emitcode ("pop", "b");
+ }
+ }
+
+ emitPtrByteSet (rname, p_type, "a");
+ return;
+ }
+
+ /* Bit length is greater than 7 bits. In this case, copy */
+ /* all except the partial byte at the end */
+ for (rlen=blen;rlen>=8;rlen-=8)
{
+ emitPtrByteSet (rname, p_type,
+ aopGet (AOP (right), offset++, FALSE, TRUE, NULL) );
+ if (rlen>8)
+ emitcode ("inc", "%s", rname);
+ }
- case POINTER:
- emitcode ("mov", "@%s,a", rname);
- break;
+ /* If there was a partial byte at the end */
+ if (rlen)
+ {
+ mask = (((unsigned char) -1 << rlen) & 0xff);
+
+ if (AOP_TYPE (right) == AOP_LIT)
+ {
+ /* Case with partial byte and literal source
+ */
+ litval = (int) floatFromVal (AOP (right)->aopu.aop_lit);
+ litval >>= (blen-rlen);
+ litval &= (~mask) & 0xff;
+ emitPtrByteGet (rname, p_type, FALSE);
+ if ((mask|litval)!=0xff)
+ emitcode ("anl","a,#!constbyte", mask);
+ if (litval)
+ emitcode ("orl","a,#!constbyte", litval);
+ }
+ else
+ {
+ /* Case with partial byte and arbitrary source
+ */
+ MOVA (aopGet (AOP (right), offset++, FALSE, FALSE, NULL));
+ emitcode ("anl", "a,#!constbyte", (~mask) & 0xff);
- case FPOINTER:
- emitcode ("movx", "@dptr,a");
- break;
+ /* transfer A to B and get next byte */
+ emitPtrByteGet (rname, p_type, TRUE);
- case GPOINTER:
- emitcode ("lcall", "__gptrput");
- break;
+ emitcode ("anl", "a,#!constbyte", mask);
+ emitcode ("orl", "a,b");
+ if (p_type == GPOINTER)
+ emitcode ("pop", "b");
+ }
+ emitPtrByteSet (rname, p_type, "a");
}
+
}
+
+
/*-----------------------------------------------------------------*/
/* genDataPointerSet - remat pointer to data space */
/*-----------------------------------------------------------------*/
iCode * ic)
{
int size, offset = 0;
- char *l, buffer[256];
+ char *l, buff[256];
aopOp (right, ic, FALSE, FALSE);
- l = aopGet (AOP (result), 0, FALSE, TRUE, FALSE);
+ l = aopGet (AOP (result), 0, FALSE, TRUE, NULL);
size = AOP_SIZE (right);
while (size--)
{
if (offset)
- sprintf (buffer, "(%s + %d)", l + 1, offset);
+ {
+ SNPRINTF (buff, sizeof(buff), "(%s + %d)", l + 1, offset);
+ }
else
- sprintf (buffer, "%s", l + 1);
- emitcode ("mov", "%s,%s", buffer,
- aopGet (AOP (right), offset++, FALSE, FALSE, FALSE));
+ {
+ SNPRINTF (buff, sizeof(buff), "%s", l + 1);
+ }
+
+ emitcode ("mov", "%s,%s", buff,
+ aopGet (AOP (right), offset++, FALSE, FALSE, NULL));
}
freeAsmop (right, NULL, ic, TRUE);
static void
genNearPointerSet (operand * right,
operand * result,
- iCode * ic)
+ iCode * ic,
+ iCode * pi)
{
asmop *aop = NULL;
- regs *preg = NULL;
char *rname, *l;
sym_link *retype, *letype;
sym_link *ptype = operandType (result);
if (!AOP_INPREG (AOP (result)))
{
/* otherwise get a free pointer register */
+ regs *preg;
+
aop = newAsmop (0);
preg = getFreePtr (ic, &aop, FALSE);
emitcode ("mov", "%s,%s",
preg->name,
- aopGet (AOP (result), 0, FALSE, TRUE, FALSE));
+ aopGet (AOP (result), 0, FALSE, TRUE, NULL));
rname = preg->name;
}
else
- rname = aopGet (AOP (result), 0, FALSE, FALSE, FALSE);
+ rname = aopGet (AOP (result), 0, FALSE, FALSE, NULL);
- freeAsmop (result, NULL, ic, TRUE);
aopOp (right, ic, FALSE, FALSE);
/* if bitfield then unpack the bits */
- if (IS_BITVAR (retype) || IS_BITVAR (letype))
- genPackBits ((IS_BITVAR (retype) ? retype : letype), right, rname, POINTER);
+ if (IS_BITFIELD (retype) || IS_BITFIELD (letype))
+ genPackBits ((IS_BITFIELD (retype) ? retype : letype), right, rname, POINTER);
else
{
/* we have can just get the values */
while (size--)
{
- l = aopGet (AOP (right), offset, FALSE, TRUE, FALSE);
+ l = aopGet (AOP (right), offset, FALSE, TRUE, NULL);
if (*l == '@')
{
MOVA (l);
}
else
emitcode ("mov", "@%s,%s", rname, l);
- if (size)
+ if (size || pi)
emitcode ("inc", "%s", rname);
offset++;
}
if (aop)
{
/* we had to allocate for this iCode */
+ if (pi) aopPut (AOP (result),rname,0);
freeAsmop (NULL, aop, ic, TRUE);
}
else
if (AOP_SIZE (right) > 1 &&
!OP_SYMBOL (result)->remat &&
(OP_SYMBOL (result)->liveTo > ic->seq ||
- ic->depth))
+ ic->depth) &&
+ !pi)
{
int size = AOP_SIZE (right) - 1;
while (size--)
}
/* done */
+ if (pi) pi->generated = 1;
+ freeAsmop (result, NULL, ic, TRUE);
freeAsmop (right, NULL, ic, TRUE);
static void
genPagedPointerSet (operand * right,
operand * result,
- iCode * ic)
+ iCode * ic,
+ iCode *pi)
{
asmop *aop = NULL;
- regs *preg = NULL;
- char *rname, *l;
+ char *rname;
sym_link *retype, *letype;
retype = getSpec (operandType (right));
if (!AOP_INPREG (AOP (result)))
{
/* otherwise get a free pointer register */
+ regs *preg;
+
aop = newAsmop (0);
preg = getFreePtr (ic, &aop, FALSE);
emitcode ("mov", "%s,%s",
preg->name,
- aopGet (AOP (result), 0, FALSE, TRUE, FALSE));
+ aopGet (AOP (result), 0, FALSE, TRUE, NULL));
rname = preg->name;
}
else
- rname = aopGet (AOP (result), 0, FALSE, FALSE, FALSE);
+ rname = aopGet (AOP (result), 0, FALSE, FALSE, NULL);
- freeAsmop (result, NULL, ic, TRUE);
aopOp (right, ic, FALSE, FALSE);
/* if bitfield then unpack the bits */
- if (IS_BITVAR (retype) || IS_BITVAR (letype))
- genPackBits ((IS_BITVAR (retype) ? retype : letype), right, rname, PPOINTER);
+ if (IS_BITFIELD (retype) || IS_BITFIELD (letype))
+ genPackBits ((IS_BITFIELD (retype) ? retype : letype), right, rname, PPOINTER);
else
{
/* we have can just get the values */
while (size--)
{
- l = aopGet (AOP (right), offset, FALSE, TRUE, TRUE);
+ MOVA (aopGet (AOP (right), offset, FALSE, TRUE, NULL));
- MOVA (l);
emitcode ("movx", "@%s,a", rname);
- if (size)
+ if (size || pi)
emitcode ("inc", "%s", rname);
offset++;
/* now some housekeeping stuff */
if (aop)
{
+ if (pi) aopPut (AOP (result),rname,0);
/* we had to allocate for this iCode */
freeAsmop (NULL, aop, ic, TRUE);
}
if (AOP_SIZE (right) > 1 &&
!OP_SYMBOL (result)->remat &&
(OP_SYMBOL (result)->liveTo > ic->seq ||
- ic->depth))
+ ic->depth) &&
+ !pi)
{
int size = AOP_SIZE (right) - 1;
while (size--)
}
/* done */
+ if (pi) pi->generated = 1;
+ freeAsmop (result, NULL, ic, TRUE);
freeAsmop (right, NULL, ic, TRUE);
/*-----------------------------------------------------------------*/
static void
genFarPointerSet (operand * right,
- operand * result, iCode * ic)
+ operand * result, iCode * ic, iCode *pi)
{
- int size, offset;
+ int size, offset, dopi=1;
sym_link *retype = getSpec (operandType (right));
sym_link *letype = getSpec (operandType (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 (AOP_TYPE (result) != AOP_STR && !AOP_INDPTRn(result))
{
/* if this is remateriazable */
if (AOP_TYPE (result) == AOP_IMMD)
- emitcode ("mov", "dptr,%s", aopGet (AOP (result), 0, TRUE, FALSE, FALSE));
+ emitcode ("mov", "dptr,%s",
+ aopGet (AOP (result), 0, TRUE, FALSE, NULL));
else
{
/* we need to get it byte by byte */
_startLazyDPSEvaluation ();
if (AOP_TYPE (result) != AOP_DPTR)
{
- emitcode ("mov", "dpl,%s", aopGet (AOP (result), 0, FALSE, FALSE, TRUE));
- emitcode ("mov", "dph,%s", aopGet (AOP (result), 1, FALSE, FALSE, TRUE));
- emitcode ("mov", "dpx,%s", aopGet (AOP (result), 2, FALSE, FALSE, TRUE));
+ emitcode ("mov", "dpl,%s", aopGet (AOP (result), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph,%s", aopGet (AOP (result), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24)
+ emitcode ("mov", "dpx,%s", aopGet (AOP (result), 2, FALSE, FALSE, NULL));
}
else
{
/* We need to generate a load to DPTR indirect through DPTR. */
- D (emitcode (";", "genFarPointerSet -- indirection special case.");
- );
- emitcode ("push", "%s", aopGet (AOP (result), 0, FALSE, TRUE, TRUE));
- emitcode ("push", "%s", aopGet (AOP (result), 1, FALSE, TRUE, TRUE));
- emitcode ("mov", "dpx,%s", aopGet (AOP (result), 2, FALSE, FALSE, TRUE));
+ D (emitcode (";", "genFarPointerSet -- indirection special case."););
+
+ emitcode ("push", "%s", aopGet (AOP (result), 0, FALSE, TRUE, NULL));
+ emitcode ("push", "%s", aopGet (AOP (result), 1, FALSE, TRUE, NULL));
+ if (options.model == MODEL_FLAT24)
+ emitcode ("mov", "dpx,%s", aopGet (AOP (result), 2, FALSE, FALSE, NULL));
emitcode ("pop", "dph");
emitcode ("pop", "dpl");
+ dopi=0;
}
_endLazyDPSEvaluation ();
}
}
/* so dptr know contains the address */
- freeAsmop (result, NULL, ic, TRUE);
- aopOp (right, ic, FALSE, TRUE);
+ aopOp (right, ic, FALSE, (AOP_INDPTRn(result) ? FALSE : TRUE));
/* if bit then unpack */
- if (IS_BITVAR (retype) || IS_BITVAR (letype))
- genPackBits ((IS_BITVAR (retype) ? retype : letype), right, "dptr", FPOINTER);
- else
- {
+ if (IS_BITFIELD (retype) || IS_BITFIELD (letype)) {
+ if (AOP_INDPTRn(result)) {
+ genSetDPTR(AOP(result)->aopu.dptr);
+ }
+ genPackBits ((IS_BITFIELD (retype) ? retype : letype), right, "dptr", FPOINTER);
+ if (AOP_INDPTRn(result)) {
+ genSetDPTR(0);
+ }
+ } else {
size = AOP_SIZE (right);
offset = 0;
+ if (AOP_INDPTRn(result) && AOP_USESDPTR(right)) {
+ while (size--) {
+ MOVA (aopGet (AOP (right), offset++, FALSE, FALSE, NULL));
+
+ genSetDPTR(AOP(result)->aopu.dptr);
+ emitcode ("movx", "@dptr,a");
+ if (size || (dopi && pi && AOP_TYPE (result) != AOP_IMMD))
+ emitcode ("inc", "dptr");
+ genSetDPTR (0);
+ }
+ } else {
+ _startLazyDPSEvaluation ();
+ while (size--) {
+ MOVA (aopGet (AOP (right), offset++, FALSE, FALSE, NULL));
+
+ if (AOP_INDPTRn(result)) {
+ genSetDPTR(AOP(result)->aopu.dptr);
+ } else {
+ genSetDPTR (0);
+ }
+ _flushLazyDPS ();
+
+ emitcode ("movx", "@dptr,a");
+ if (size || (dopi && pi && AOP_TYPE (result) != AOP_IMMD))
+ emitcode ("inc", "dptr");
+ }
+ _endLazyDPSEvaluation ();
+ }
+ }
+
+ if (dopi && pi && AOP_TYPE (result) != AOP_IMMD) {
+ if (!AOP_INDPTRn(result)) {
+ _startLazyDPSEvaluation ();
+
+ aopPut (AOP(result),"dpl",0);
+ aopPut (AOP(result),"dph",1);
+ if (options.model == MODEL_FLAT24)
+ aopPut (AOP(result),"dpx",2);
- _startLazyDPSEvaluation ();
- while (size--)
- {
- char *l = aopGet (AOP (right), offset++, FALSE, FALSE, TRUE);
- MOVA (l);
-
- genSetDPTR (0);
- _flushLazyDPS ();
-
- emitcode ("movx", "@dptr,a");
- if (size)
- emitcode ("inc", "dptr");
- }
- _endLazyDPSEvaluation ();
- }
-
+ _endLazyDPSEvaluation ();
+ }
+ pi->generated=1;
+ } else if ((OP_SYMBOL(result)->ruonly || AOP_INDPTRn(result)) &&
+ AOP_SIZE(right) > 1 &&
+ (OP_SYMBOL (result)->liveTo > ic->seq || ic->depth)) {
+
+ size = AOP_SIZE (right) - 1;
+ if (AOP_INDPTRn(result)) {
+ genSetDPTR(AOP(result)->aopu.dptr);
+ }
+ while (size--) emitcode ("lcall","__decdptr");
+ if (AOP_INDPTRn(result)) {
+ genSetDPTR(0);
+ }
+ }
+ freeAsmop (result, NULL, ic, TRUE);
freeAsmop (right, NULL, ic, TRUE);
}
/*-----------------------------------------------------------------*/
static void
genGenPointerSet (operand * right,
- operand * result, iCode * ic)
+ operand * result, iCode * ic, iCode *pi)
{
int size, offset;
sym_link *retype = getSpec (operandType (right));
sym_link *letype = getSpec (operandType (result));
- aopOp (result, ic, FALSE, TRUE);
+ aopOp (result, ic, FALSE, AOP_IS_STR(result) ? FALSE : TRUE);
/* if the operand is already in dptr
then we do nothing else we move the value to dptr */
/* if this is remateriazable */
if (AOP_TYPE (result) == AOP_IMMD)
{
- emitcode ("mov", "dptr,%s", aopGet (AOP (result), 0, TRUE, FALSE, FALSE));
- emitcode ("mov", "b,%s + 1", aopGet (AOP (result), 0, TRUE, FALSE, FALSE));
+ emitcode ("mov", "dptr,%s", aopGet (AOP (result), 0, TRUE, FALSE, NULL));
+ if (AOP(result)->aopu.aop_immd.from_cast_remat)
+ {
+ MOVB(aopGet(AOP (result), AOP_SIZE(result)-1, FALSE, FALSE, NULL));
+ }
+ else
+ {
+ emitcode ("mov",
+ "b,%s + 1", aopGet (AOP (result), 0, TRUE, FALSE, NULL));
+ }
}
else
{ /* we need to get it byte by byte */
- emitcode ("mov", "dpl,%s", aopGet (AOP (result), 0, FALSE, FALSE, TRUE));
- emitcode ("mov", "dph,%s", aopGet (AOP (result), 1, FALSE, FALSE, TRUE));
- emitcode ("mov", "dpx,%s", aopGet (AOP (result), 2, FALSE, FALSE, TRUE));
- emitcode ("mov", "b,%s", aopGet (AOP (result), 3, FALSE, FALSE, TRUE));
+ emitcode ("mov", "dpl,%s", aopGet (AOP (result), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph,%s", aopGet (AOP (result), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24) {
+ emitcode ("mov", "dpx,%s", aopGet (AOP (result), 2, FALSE, FALSE, NULL));
+ emitcode ("mov", "b,%s", aopGet (AOP (result), 3, FALSE, FALSE, NULL));
+ } else {
+ emitcode ("mov", "b,%s", aopGet (AOP (result), 2, FALSE, FALSE, NULL));
+ }
}
_endLazyDPSEvaluation ();
}
- /* so dptr know contains the address */
- freeAsmop (result, NULL, ic, TRUE);
+ /* so dptr + b now contains the address */
+ _G.bInUse++;
aopOp (right, ic, FALSE, TRUE);
+ _G.bInUse--;
+
/* if bit then unpack */
- if (IS_BITVAR (retype) || IS_BITVAR (letype))
- genPackBits ((IS_BITVAR (retype) ? retype : letype), right, "dptr", GPOINTER);
+ if (IS_BITFIELD (retype) || IS_BITFIELD (letype))
+ {
+ genPackBits ((IS_BITFIELD (retype) ? retype : letype), right, "dptr", GPOINTER);
+ }
else
{
- size = AOP_SIZE (right);
- offset = 0;
+ size = AOP_SIZE (right);
+ offset = 0;
- _startLazyDPSEvaluation ();
- while (size--)
+ _startLazyDPSEvaluation ();
+ while (size--)
{
- char *l = aopGet (AOP (right), offset++, FALSE, FALSE, TRUE);
- MOVA (l);
-
- genSetDPTR (0);
- _flushLazyDPS ();
+ if (size)
+ {
+ // Set two bytes at a time, passed in _AP & A.
+ // dptr will be incremented ONCE by __gptrputWord.
+ //
+ // Note: any change here must be coordinated
+ // with the implementation of __gptrputWord
+ // in device/lib/_gptrput.c
+ emitcode("mov", "_ap, %s",
+ aopGet (AOP (right), offset++, FALSE, FALSE, NULL));
+ MOVA (aopGet (AOP (right), offset++, FALSE, FALSE, NULL));
+
+ genSetDPTR (0);
+ _flushLazyDPS ();
+ emitcode ("lcall", "__gptrputWord");
+ size--;
+ }
+ else
+ {
+ // Only one byte to put.
+ MOVA (aopGet (AOP (right), offset++, FALSE, FALSE, NULL));
- emitcode ("lcall", "__gptrput");
- if (size)
- emitcode ("inc", "dptr");
+ genSetDPTR (0);
+ _flushLazyDPS ();
+ emitcode ("lcall", "__gptrput");
+ }
+
+ if (size || (pi && AOP_TYPE (result) != AOP_IMMD))
+ {
+ emitcode ("inc", "dptr");
+ }
}
- _endLazyDPSEvaluation ();
+ _endLazyDPSEvaluation ();
}
+ if (pi && AOP_TYPE (result) != AOP_IMMD) {
+ _startLazyDPSEvaluation ();
+
+ aopPut (AOP(result),"dpl",0);
+ aopPut (AOP(result),"dph",1);
+ if (options.model == MODEL_FLAT24) {
+ aopPut (AOP(result),"dpx",2);
+ aopPut (AOP(result),"b",3);
+ } else {
+ aopPut (AOP(result),"b",2);
+ }
+ _endLazyDPSEvaluation ();
+
+ pi->generated=1;
+ } else if (OP_SYMBOL(result)->ruonly && AOP_SIZE(right) > 1 &&
+ (OP_SYMBOL (result)->liveTo > ic->seq || ic->depth)) {
+
+ size = AOP_SIZE (right) - 1;
+ while (size--) emitcode ("lcall","__decdptr");
+ }
+ freeAsmop (result, NULL, ic, TRUE);
freeAsmop (right, NULL, ic, TRUE);
}
/* genPointerSet - stores the value into a pointer location */
/*-----------------------------------------------------------------*/
static void
-genPointerSet (iCode * ic)
+genPointerSet (iCode * ic, iCode *pi)
{
operand *right, *result;
sym_link *type, *etype;
int p_type;
- D (emitcode (";", "genPointerSet ");
- );
+ D (emitcode (";", "genPointerSet "););
right = IC_RIGHT (ic);
result = IC_RESULT (ic);
/* we have to go by the storage class */
p_type = PTR_TYPE (SPEC_OCLS (etype));
}
+ /* special case when cast remat */
+ if (p_type == GPOINTER && OP_SYMBOL(result)->remat &&
+ IS_CAST_ICODE(OP_SYMBOL(result)->rematiCode)) {
+ result = IC_RIGHT(OP_SYMBOL(result)->rematiCode);
+ type = operandType (result);
+ p_type = DCL_TYPE (type);
+ }
/* now that we have the pointer type we assign
the pointer values */
case POINTER:
case IPOINTER:
- genNearPointerSet (right, result, ic);
+ genNearPointerSet (right, result, ic, pi);
break;
case PPOINTER:
- genPagedPointerSet (right, result, ic);
+ genPagedPointerSet (right, result, ic, pi);
break;
case FPOINTER:
- genFarPointerSet (right, result, ic);
+ genFarPointerSet (right, result, ic, pi);
break;
case GPOINTER:
- genGenPointerSet (right, result, ic);
+ genGenPointerSet (right, result, ic, pi);
break;
+
+ default:
+ werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
+ "genPointerSet: illegal pointer type");
}
}
operand *cond = IC_COND (ic);
int isbit = 0;
- D (emitcode (";", "genIfx ");
- );
+ D (emitcode (";", "genIfx "););
aopOp (cond, ic, FALSE, FALSE);
/* get the value into acc */
if (AOP_TYPE (cond) != AOP_CRY)
- toBoolean (cond);
+ {
+ toBoolean (cond);
+ }
else
- isbit = 1;
+ {
+ isbit = 1;
+ }
+
/* the result is now in the accumulator */
freeAsmop (cond, NULL, ic, TRUE);
/* if the condition is a bit variable */
if (isbit && IS_ITEMP (cond) &&
SPIL_LOC (cond))
- genIfxJump (ic, SPIL_LOC (cond)->rname);
+ {
+ genIfxJump (ic, SPIL_LOC (cond)->rname);
+ }
else if (isbit && !IS_ITEMP (cond))
- genIfxJump (ic, OP_SYMBOL (cond)->rname);
+ {
+ genIfxJump (ic, OP_SYMBOL (cond)->rname);
+ }
else
- genIfxJump (ic, "a");
+ {
+ genIfxJump (ic, "a");
+ }
ic->generated = 1;
}
/* if the operand is on the stack then we
need to get the stack offset of this
variable */
- if (sym->onStack)
- {
- /* if it has an offset then we need to compute
- it */
- if (sym->stack)
- {
- emitcode ("mov", "a,_bp");
- emitcode ("add", "a,#0x%02x", ((char) sym->stack & 0xff));
- aopPut (AOP (IC_RESULT (ic)), "a", 0);
- }
- else
- {
- /* we can just move _bp */
- aopPut (AOP (IC_RESULT (ic)), "_bp", 0);
- }
- /* fill the result with zero */
- size = AOP_SIZE (IC_RESULT (ic)) - 1;
-
-
- if (options.stack10bit && size < (FPTRSIZE - 1))
- {
- fprintf (stderr,
- "*** warning: pointer to stack var truncated.\n");
- }
+ if (sym->onStack) {
+
+ /* if 10 bit stack */
+ if (options.stack10bit) {
+ char buff[10];
+ int offset;
+
+ tsprintf(buff, sizeof(buff),
+ "#!constbyte",(options.stack_loc >> 16) & 0xff);
+ /* if it has an offset then we need to compute it */
+/* emitcode ("subb", "a,#!constbyte", */
+/* -((sym->stack < 0) ? */
+/* ((short) (sym->stack - _G.nRegsSaved)) : */
+/* ((short) sym->stack)) & 0xff); */
+/* emitcode ("mov","b,a"); */
+/* emitcode ("mov","a,#!constbyte",(-((sym->stack < 0) ? */
+/* ((short) (sym->stack - _G.nRegsSaved)) : */
+/* ((short) sym->stack)) >> 8) & 0xff); */
+ if (sym->stack) {
+ emitcode ("mov", "a,_bpx");
+ emitcode ("add", "a,#!constbyte", ((sym->stack < 0) ?
+ ((char) (sym->stack - _G.nRegsSaved)) :
+ ((char) sym->stack )) & 0xff);
+ emitcode ("mov", "b,a");
+ emitcode ("mov", "a,_bpx+1");
+
+ offset = (((sym->stack < 0) ?
+ ((short) (sym->stack - _G.nRegsSaved)) :
+ ((short) sym->stack )) >> 8) & 0xff;
+
+ emitcode ("addc","a,#!constbyte", offset);
+
+ aopPut (AOP (IC_RESULT (ic)), "b", 0);
+ aopPut (AOP (IC_RESULT (ic)), "a", 1);
+ aopPut (AOP (IC_RESULT (ic)), buff, 2);
+ } else {
+ /* we can just move _bp */
+ aopPut (AOP (IC_RESULT (ic)), "_bpx", 0);
+ aopPut (AOP (IC_RESULT (ic)), "_bpx+1", 1);
+ aopPut (AOP (IC_RESULT (ic)), buff, 2);
+ }
+ } else {
+ /* if it has an offset then we need to compute it */
+ if (sym->stack) {
+ emitcode ("mov", "a,_bp");
+ emitcode ("add", "a,#!constbyte", ((char) sym->stack & 0xff));
+ aopPut (AOP (IC_RESULT (ic)), "a", 0);
+ } else {
+ /* we can just move _bp */
+ aopPut (AOP (IC_RESULT (ic)), "_bp", 0);
+ }
+ /* fill the result with zero */
+ size = AOP_SIZE (IC_RESULT (ic)) - 1;
+
+
+ if (options.stack10bit && size < (FPTRSIZE - 1)) {
+ fprintf (stderr,
+ "*** warning: pointer to stack var truncated.\n");
+ }
- offset = 1;
- while (size--)
- {
- /* Yuck! */
- if (options.stack10bit && offset == 2)
- {
- aopPut (AOP (IC_RESULT (ic)), "#0x40", offset++);
- }
- else
- {
+ offset = 1;
+ while (size--) {
aopPut (AOP (IC_RESULT (ic)), zero, offset++);
- }
- }
-
+ }
+ }
goto release;
- }
+ }
/* object not on stack then we need the name */
size = AOP_SIZE (IC_RESULT (ic));
while (size--)
{
char s[SDCC_NAME_MAX];
- if (offset)
- sprintf (s, "#(%s >> %d)",
- sym->rname,
- offset * 8);
+ if (offset) {
+ switch (offset) {
+ case 1:
+ tsprintf(s, sizeof(s), "#!his",sym->rname);
+ break;
+ case 2:
+ tsprintf(s, sizeof(s), "#!hihis",sym->rname);
+ break;
+ case 3:
+ tsprintf(s, sizeof(s), "#!hihihis",sym->rname);
+ break;
+ default: /* should not need this (just in case) */
+ SNPRINTF (s, sizeof(s), "#(%s >> %d)",
+ sym->rname,
+ offset * 8);
+ }
+ }
else
- sprintf (s, "#%s", sym->rname);
+ {
+ SNPRINTF (s, sizeof(s), "#%s", sym->rname);
+ }
+
aopPut (AOP (IC_RESULT (ic)), s, offset++);
}
}
+#if 0 // obsolete, and buggy for != xdata
/*-----------------------------------------------------------------*/
-/* genFarFarAssign - assignment when both are in far space */
+/* genArrayInit - generates code for address of */
/*-----------------------------------------------------------------*/
static void
-genFarFarAssign (operand * result, operand * right, iCode * ic)
-{
- int size = AOP_SIZE (right);
- int offset = 0;
- char *l;
+genArrayInit (iCode * ic)
+{
+ literalList *iLoop;
+ int ix, count;
+ int elementSize = 0, eIndex;
+ unsigned val, lastVal;
+ sym_link *type;
+ operand *left=IC_LEFT(ic);
+
+ D (emitcode (";", "genArrayInit "););
- if (size > 1)
+ aopOp (IC_LEFT(ic), ic, FALSE, FALSE);
+
+ if (AOP_TYPE(IC_LEFT(ic)) == AOP_IMMD)
{
- /* This is a net loss for size == 1, but a big gain
- * otherwise.
- */
- D (emitcode (";", "genFarFarAssign (improved)");
- );
-
- aopOp (result, ic, TRUE, TRUE);
-
- _startLazyDPSEvaluation ();
- while (size--)
- {
- aopPut (AOP (result),
- aopGet (AOP (right), offset, FALSE, FALSE, FALSE), offset);
- offset++;
- }
- _endLazyDPSEvaluation ();
- freeAsmop (result, NULL, ic, FALSE);
- freeAsmop (right, NULL, ic, FALSE);
+ // Load immediate value into DPTR.
+ emitcode("mov", "dptr, %s",
+ aopGet(AOP(IC_LEFT(ic)), 0, TRUE, FALSE, NULL));
}
- else
+ else if (AOP_TYPE(IC_LEFT(ic)) != AOP_DPTR)
{
- D (emitcode (";", "genFarFarAssign ");
- );
-
- /* first push the right side on to the stack */
- _startLazyDPSEvaluation ();
- while (size--)
- {
- l = aopGet (AOP (right), offset++, FALSE, FALSE, TRUE);
- MOVA (l);
- emitcode ("push", "acc");
+#if 0
+ werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
+ "Unexpected operand to genArrayInit.\n");
+ exit(1);
+#else
+ // a regression because of SDCCcse.c:1.52
+ emitcode ("mov", "dpl,%s", aopGet (AOP (left), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph,%s", aopGet (AOP (left), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24)
+ emitcode ("mov", "dpx,%s", aopGet (AOP (left), 2, FALSE, FALSE, NULL));
+#endif
+ }
+
+ type = operandType(IC_LEFT(ic));
+
+ if (type && type->next)
+ {
+ elementSize = getSize(type->next);
+ }
+ else
+ {
+ werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
+ "can't determine element size in genArrayInit.\n");
+ exit(1);
+ }
+
+ iLoop = IC_ARRAYILIST(ic);
+ lastVal = 0xffff;
+
+ while (iLoop)
+ {
+ bool firstpass = TRUE;
+
+ emitcode(";", "store %d x 0x%x to DPTR (element size %d)",
+ iLoop->count, (int)iLoop->literalValue, elementSize);
+
+ ix = iLoop->count;
+
+ while (ix)
+ {
+ symbol *tlbl = NULL;
+
+ count = ix > 256 ? 256 : ix;
+
+ if (count > 1)
+ {
+ tlbl = newiTempLabel (NULL);
+ if (firstpass || (count & 0xff))
+ {
+ emitcode("mov", "b, #!constbyte", count & 0xff);
+ }
+
+ emitcode ("", "!tlabeldef", tlbl->key + 100);
+ }
+
+ firstpass = FALSE;
+
+ for (eIndex = 0; eIndex < elementSize; eIndex++)
+ {
+ val = (((int)iLoop->literalValue) >> (eIndex * 8)) & 0xff;
+ if (val != lastVal)
+ {
+ emitcode("mov", "a, #!constbyte", val);
+ lastVal = val;
+ }
+
+ emitcode("movx", "@dptr, a");
+ emitcode("inc", "dptr");
+ }
+
+ if (count > 1)
+ {
+ emitcode("djnz", "b, !tlabel", tlbl->key + 100);
+ }
+
+ ix -= count;
}
+
+ iLoop = iLoop->next;
+ }
+
+ freeAsmop (IC_LEFT(ic), NULL, ic, TRUE);
+}
+#endif
+/*-----------------------------------------------------------------*/
+/* 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;
+ symbol *rSym = NULL;
+
+ if (size == 1)
+ {
+ /* quick & easy case. */
+ D(emitcode(";","genFarFarAssign (1 byte case)"););
+ MOVA(aopGet(AOP(right), 0, FALSE, FALSE, NULL));
freeAsmop (right, NULL, ic, FALSE);
/* now assign DPTR to result */
- aopOp (result, ic, FALSE, FALSE);
- size = AOP_SIZE (result);
+ _G.accInUse++;
+ aopOp(result, ic, FALSE, FALSE);
+ _G.accInUse--;
+ aopPut(AOP(result), "a", 0);
+ freeAsmop(result, NULL, ic, FALSE);
+ return;
+ }
+
+ /* See if we've got an underlying symbol to abuse. */
+ if (IS_SYMOP(result) && OP_SYMBOL(result))
+ {
+ if (IS_TRUE_SYMOP(result))
+ {
+ rSym = OP_SYMBOL(result);
+ }
+ else if (IS_ITEMP(result) && OP_SYMBOL(result)->isspilt && OP_SYMBOL(result)->usl.spillLoc)
+ {
+ rSym = OP_SYMBOL(result)->usl.spillLoc;
+ }
+ }
+
+ if (size > 1 && rSym && rSym->rname && !rSym->onStack)
+ {
+ /* We can use the '390 auto-toggle feature to good effect here. */
+
+ D(emitcode(";","genFarFarAssign (390 auto-toggle fun)"););
+ emitcode("mov", "dps,#!constbyte",0x21); /* Select DPTR2 & auto-toggle. */
+ emitcode ("mov", "dptr,#%s", rSym->rname);
+ /* DP2 = result, DP1 = right, DP1 is current. */
+ while (size)
+ {
+ emitcode("movx", "a,@dptr");
+ emitcode("movx", "@dptr,a");
+ if (--size)
+ {
+ emitcode("inc", "dptr");
+ emitcode("inc", "dptr");
+ }
+ }
+ emitcode("mov", "dps,#0");
+ freeAsmop (right, NULL, ic, FALSE);
+#if 0
+some alternative code for processors without auto-toggle
+no time to test now, so later well put in...kpb
+ D(emitcode(";","genFarFarAssign (dual-dptr fun)"););
+ emitcode("mov", "dps,#1"); /* Select DPTR2. */
+ emitcode ("mov", "dptr,#%s", rSym->rname);
+ /* DP2 = result, DP1 = right, DP1 is current. */
+ while (size)
+ {
+ --size;
+ emitcode("movx", "a,@dptr");
+ if (size)
+ emitcode("inc", "dptr");
+ emitcode("inc", "dps");
+ emitcode("movx", "@dptr,a");
+ if (size)
+ emitcode("inc", "dptr");
+ emitcode("inc", "dps");
+ }
+ emitcode("mov", "dps,#0");
+ freeAsmop (right, NULL, ic, FALSE);
+#endif
+ }
+ else
+ {
+ D (emitcode (";", "genFarFarAssign"););
+ aopOp (result, ic, TRUE, TRUE);
+
+ _startLazyDPSEvaluation ();
+
while (size--)
{
- emitcode ("pop", "acc");
- aopPut (AOP (result), "a", --offset);
+ aopPut (AOP (result),
+ aopGet (AOP (right), offset, FALSE, FALSE, NULL), offset);
+ offset++;
}
- freeAsmop (result, NULL, ic, FALSE);
_endLazyDPSEvaluation ();
- }
+ freeAsmop (result, NULL, ic, FALSE);
+ freeAsmop (right, NULL, ic, FALSE);
+ }
}
/*-----------------------------------------------------------------*/
goto release;
/* if the result is a bit */
- if (AOP_TYPE (result) == AOP_CRY)
+ if (AOP_TYPE (result) == AOP_CRY) /* works only for true symbols */
{
-
/* if the right size is a literal then
we know what the value is */
if (AOP_TYPE (right) == AOP_LIT)
(AOP_TYPE (right) == AOP_LIT) &&
!IS_FLOAT (operandType (right)))
{
- D (emitcode (";", "Kevin's better literal load code");
- );
_startLazyDPSEvaluation ();
while (size && ((unsigned int) (lit >> (offset * 8)) != 0))
{
aopPut (AOP (result),
- aopGet (AOP (right), offset, FALSE, FALSE, TRUE),
+ aopGet (AOP (right), offset, FALSE, FALSE, NULL),
offset);
offset++;
size--;
while (size--)
{
aopPut (AOP (result),
- aopGet (AOP (right), offset, FALSE, FALSE, FALSE),
+ aopGet (AOP (right), offset, FALSE, FALSE, NULL),
offset);
offset++;
}
aopOp (IC_JTCOND (ic), ic, FALSE, FALSE);
/* get the condition into accumulator */
- l = aopGet (AOP (IC_JTCOND (ic)), 0, FALSE, FALSE, TRUE);
+ l = aopGet (AOP (IC_JTCOND (ic)), 0, FALSE, FALSE, NULL);
MOVA (l);
/* multiply by four! */
emitcode ("add", "a,acc");
freeAsmop (IC_JTCOND (ic), NULL, ic, TRUE);
jtab = newiTempLabel (NULL);
- emitcode ("mov", "dptr,#%05d$", jtab->key + 100);
+ emitcode ("mov", "dptr,#!tlabel", jtab->key + 100);
emitcode ("jmp", "@a+dptr");
- emitcode ("", "%05d$:", jtab->key + 100);
+ emitcode ("", "!tlabeldef", jtab->key + 100);
/* now generate the jump labels */
for (jtab = setFirstItem (IC_JTLABELS (ic)); jtab;
jtab = setNextItem (IC_JTLABELS (ic)))
- emitcode ("ljmp", "%05d$", jtab->key + 100);
+ emitcode ("ljmp", "!tlabel", jtab->key + 100);
}
operand *right = IC_RIGHT (ic);
int size, offset;
- D (emitcode (";", "genCast ");
- );
+ D (emitcode (";", "genCast "););
/* if they are equivalent then do nothing */
if (operandsEqu (IC_RESULT (ic), IC_RIGHT (ic)))
return;
- aopOp (right, ic, FALSE, FALSE);
- aopOp (result, ic, FALSE, AOP_TYPE (right) == AOP_DPTR);
+ aopOp (right, ic, FALSE, AOP_IS_STR (result));
+ aopOp (result, ic, FALSE, (AOP_TYPE(right) == AOP_DPTR));
/* if the result is a bit */
- if (AOP_TYPE (result) == AOP_CRY)
+ if (IS_BITVAR (OP_SYMBOL (result)->type)
+ && !IS_BITFIELD (OP_SYMBOL (result)->type) )
{
/* if the right size is a literal then
we know what the value is */
while (size--)
{
aopPut (AOP (result),
- aopGet (AOP (right), offset, FALSE, FALSE, FALSE),
+ aopGet (AOP (right), offset, FALSE, FALSE, NULL),
offset);
offset++;
}
/* pointer to generic pointer */
if (IS_GENPTR (ctype))
{
- char *l = zero;
-
if (IS_PTR (type))
{
p_type = DCL_TYPE (type);
while (size--)
{
aopPut (AOP (result),
- aopGet (AOP (right), offset, FALSE, FALSE, FALSE),
+ aopGet (AOP (right), offset, FALSE, FALSE, NULL),
offset);
offset++;
}
_endLazyDPSEvaluation ();
/* the last byte depending on type */
- switch (p_type)
{
- case IPOINTER:
- case POINTER:
- l = zero;
- break;
- case FPOINTER:
- l = one;
- break;
- case CPOINTER:
- l = "#0x02";
- break;
- case PPOINTER:
- l = "#0x03";
- break;
-
- default:
- /* this should never happen */
- werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
- "got unknown pointer type");
- exit (1);
+ int gpVal = pointerTypeToGPByte(p_type, NULL, NULL);
+ char gpValStr[10];
+
+ if (gpVal == -1)
+ {
+ // pointerTypeToGPByte will have bitched.
+ exit(1);
+ }
+
+ SNPRINTF(gpValStr, sizeof(gpValStr), "#0x%d", gpVal);
+ aopPut (AOP (result), gpValStr, GPTRSIZE - 1);
}
- aopPut (AOP (result), l, GPTRSIZE - 1);
goto release;
}
while (size--)
{
aopPut (AOP (result),
- aopGet (AOP (right), offset, FALSE, FALSE, FALSE),
+ aopGet (AOP (right), offset, FALSE, FALSE, NULL),
offset);
offset++;
}
while (size--)
{
aopPut (AOP (result),
- aopGet (AOP (right), offset, FALSE, FALSE, FALSE),
+ aopGet (AOP (right), offset, FALSE, FALSE, NULL),
offset);
offset++;
}
/* also, if the source is a bit, we don't need to sign extend, because
* it can't possibly have set the sign bit.
*/
- if (SPEC_USIGN (rtype) || !IS_SPEC (rtype) || AOP_TYPE (right) == AOP_CRY)
+ if (!IS_SPEC (rtype) || SPEC_USIGN (rtype) || AOP_TYPE (right) == AOP_CRY)
{
while (size--)
{
else
{
/* we need to extend the sign :{ */
- char *l = aopGet (AOP (right), AOP_SIZE (right) - 1,
- FALSE, FALSE, TRUE);
- MOVA (l);
+ MOVA (aopGet (AOP (right), AOP_SIZE (right) - 1,
+ FALSE, FALSE, NULL));
emitcode ("rlc", "a");
emitcode ("subb", "a,acc");
while (size--)
return 0;
/* otherwise we can save BIG */
+ D(emitcode(";", "genDjnz"););
+
lbl = newiTempLabel (NULL);
lbl1 = newiTempLabel (NULL);
aopOp (IC_RESULT (ic), ic, FALSE, FALSE);
- if (IS_AOP_PREG (IC_RESULT (ic)))
+ if (AOP_NEEDSACC(IC_RESULT(ic)))
+ {
+ /* If the result is accessed indirectly via
+ * the accumulator, we must explicitly write
+ * it back after the decrement.
+ */
+ char *rByte = aopGet(AOP(IC_RESULT(ic)), 0, FALSE, FALSE, NULL);
+
+ if (strcmp(rByte, "a"))
+ {
+ /* Something is hopelessly wrong */
+ fprintf(stderr, "*** warning: internal error at %s:%d\n",
+ __FILE__, __LINE__);
+ /* We can just give up; the generated code will be inefficient,
+ * but what the hey.
+ */
+ freeAsmop (IC_RESULT (ic), NULL, ic, TRUE);
+ return 0;
+ }
+ emitcode ("dec", "%s", rByte);
+ aopPut(AOP(IC_RESULT(ic)), rByte, 0);
+ emitcode ("jnz", "!tlabel", lbl->key + 100);
+ }
+ else if (IS_AOP_PREG (IC_RESULT (ic)))
{
emitcode ("dec", "%s",
- aopGet (AOP (IC_RESULT (ic)), 0, FALSE, FALSE, FALSE));
- emitcode ("mov", "a,%s", aopGet (AOP (IC_RESULT (ic)), 0, FALSE, FALSE, FALSE));
- emitcode ("jnz", "%05d$", lbl->key + 100);
+ aopGet (AOP (IC_RESULT (ic)), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "a,%s", aopGet (AOP (IC_RESULT (ic)), 0, FALSE, FALSE, NULL));
+ emitcode ("jnz", "!tlabel", lbl->key + 100);
}
else
{
- emitcode ("djnz", "%s,%05d$", aopGet (AOP (IC_RESULT (ic)), 0, FALSE, FALSE, FALSE),
+ emitcode ("djnz", "%s,!tlabel", aopGet (AOP (IC_RESULT (ic)), 0, FALSE, TRUE, NULL),
lbl->key + 100);
}
- emitcode ("sjmp", "%05d$", lbl1->key + 100);
- emitcode ("", "%05d$:", lbl->key + 100);
- emitcode ("ljmp", "%05d$", IC_TRUE (ifx)->key + 100);
- emitcode ("", "%05d$:", lbl1->key + 100);
+ emitcode ("sjmp", "!tlabel", lbl1->key + 100);
+ emitcode ("", "!tlabeldef", lbl->key + 100);
+ emitcode ("ljmp", "!tlabel", IC_TRUE (ifx)->key + 100);
+ emitcode ("", "!tlabeldef", lbl1->key + 100);
freeAsmop (IC_RESULT (ic), NULL, ic, TRUE);
ifx->generated = 1;
static void
genReceive (iCode * ic)
{
+ int size = getSize (operandType (IC_RESULT (ic)));
+ int offset = 0;
+ int rb1off ;
+
+ D (emitcode (";", "genReceive "););
- D (emitcode (";", "genReceive ");
- );
-
- if (isOperandInFarSpace (IC_RESULT (ic)) &&
- (OP_SYMBOL (IC_RESULT (ic))->isspilt ||
- IS_TRUE_SYMOP (IC_RESULT (ic))))
+ if (ic->argreg == 1)
{
- int size = getSize (operandType (IC_RESULT (ic)));
- int offset = fReturnSize_390 - size;
- while (size--)
+ /* first parameter */
+ if (AOP_IS_STR(IC_RESULT(ic)))
{
- emitcode ("push", "%s", (strcmp (fReturn[fReturnSize_390 - offset - 1], "a") ?
- fReturn[fReturnSize_390 - offset - 1] : "acc"));
- offset++;
+ /* Nothing to do: it's already in the proper place. */
+ return;
}
- aopOp (IC_RESULT (ic), ic, FALSE, FALSE);
- size = AOP_SIZE (IC_RESULT (ic));
- offset = 0;
- while (size--)
+ else
{
- emitcode ("pop", "acc");
- aopPut (AOP (IC_RESULT (ic)), "a", offset++);
+ bool useDp2;
+
+ useDp2 = isOperandInFarSpace (IC_RESULT (ic)) &&
+ (OP_SYMBOL (IC_RESULT (ic))->isspilt ||
+ IS_TRUE_SYMOP (IC_RESULT (ic)));
+
+ _G.accInUse++;
+ aopOp (IC_RESULT (ic), ic, FALSE, useDp2);
+ _G.accInUse--;
+
+ /* Sanity checking... */
+ if (AOP_USESDPTR(IC_RESULT(ic)))
+ {
+ werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
+ "genReceive got unexpected DPTR.");
+ }
+ assignResultValue (IC_RESULT (ic));
+ }
+ }
+ else
+ {
+ /* second receive onwards */
+ /* this gets a little tricky since unused recevies will be
+ eliminated, we have saved the reg in the type field . and
+ we use that to figure out which register to use */
+ aopOp (IC_RESULT (ic), ic, FALSE, FALSE);
+ rb1off = ic->argreg;
+ while (size--)
+ {
+ aopPut (AOP (IC_RESULT (ic)), rb1regs[rb1off++ -5], offset++);
}
+ }
+ freeAsmop (IC_RESULT (ic), NULL, ic, TRUE);
+}
+
+/*-----------------------------------------------------------------*/
+/* genMemcpyX2X - gen code for memcpy xdata to xdata */
+/*-----------------------------------------------------------------*/
+static void genMemcpyX2X( iCode *ic, int nparms, operand **parms, int fromc)
+{
+ operand *from , *to , *count;
+ symbol *lbl;
+ bitVect *rsave;
+ int i;
+ /* we know it has to be 3 parameters */
+ assert (nparms == 3);
+
+ rsave = newBitVect(16);
+ /* save DPTR if it needs to be saved */
+ for (i = DPL_IDX ; i <= B_IDX ; i++ ) {
+ if (bitVectBitValue(ic->rMask,i))
+ rsave = bitVectSetBit(rsave,i);
+ }
+ rsave = bitVectIntersect(rsave,bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+ savermask(rsave);
+
+ to = parms[0];
+ from = parms[1];
+ count = parms[2];
+
+ aopOp (from, ic->next, FALSE, FALSE);
+
+ /* get from into DPTR1 */
+ emitcode ("mov", "dpl1,%s", aopGet (AOP (from), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph1,%s", aopGet (AOP (from), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24) {
+ emitcode ("mov", "dpx1,%s", aopGet (AOP (from), 2, FALSE, FALSE, NULL));
+ }
+
+ freeAsmop (from, NULL, ic, FALSE);
+ aopOp (to, ic, FALSE, FALSE);
+ /* get "to" into DPTR */
+ /* if the operand is already in dptr
+ then we do nothing else we move the value to dptr */
+ if (AOP_TYPE (to) != AOP_STR) {
+ /* if already in DPTR then we need to push */
+ if (AOP_TYPE(to) == AOP_DPTR) {
+ emitcode ("push", "%s", aopGet (AOP (to), 0, FALSE, TRUE, NULL));
+ emitcode ("push", "%s", aopGet (AOP (to), 1, FALSE, TRUE, NULL));
+ if (options.model == MODEL_FLAT24)
+ emitcode ("mov", "dpx,%s", aopGet (AOP (to), 2, FALSE, FALSE, NULL));
+ emitcode ("pop", "dph");
+ emitcode ("pop", "dpl");
+ } else {
+ _startLazyDPSEvaluation ();
+ /* if this is remateriazable */
+ if (AOP_TYPE (to) == AOP_IMMD) {
+ emitcode ("mov", "dptr,%s", aopGet (AOP (to), 0, TRUE, FALSE, NULL));
+ } else { /* we need to get it byte by byte */
+ emitcode ("mov", "dpl,%s", aopGet (AOP (to), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph,%s", aopGet (AOP (to), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24) {
+ emitcode ("mov", "dpx,%s", aopGet (AOP (to), 2, FALSE, FALSE, NULL));
+ }
+ }
+ _endLazyDPSEvaluation ();
+ }
+ }
+ freeAsmop (to, NULL, ic, FALSE);
+ _G.dptrInUse = _G.dptr1InUse = 1;
+ aopOp (count, ic->next->next, FALSE,FALSE);
+ lbl =newiTempLabel(NULL);
+
+ /* now for the actual copy */
+ if (AOP_TYPE(count) == AOP_LIT &&
+ (int)floatFromVal (AOP(count)->aopu.aop_lit) <= 256) {
+ emitcode ("mov", "b,%s",aopGet(AOP(count),0,FALSE,FALSE,NULL));
+ if (fromc) {
+ emitcode ("lcall","__bi_memcpyc2x_s");
+ } else {
+ emitcode ("lcall","__bi_memcpyx2x_s");
+ }
+ freeAsmop (count, NULL, ic, FALSE);
+ } else {
+ symbol *lbl1 = newiTempLabel(NULL);
+
+ emitcode (";"," Auto increment but no djnz");
+ emitcode ("mov","_ap,%s",aopGet (AOP (count), 0, FALSE, TRUE, NULL));
+ emitcode ("mov","b,%s",aopGet (AOP (count), 1, FALSE, TRUE, NULL));
+ freeAsmop (count, NULL, ic, FALSE);
+ emitcode ("mov", "dps,#!constbyte",0x21); /* Select DPTR2 & auto-toggle. */
+ emitcode ("","!tlabeldef",lbl->key+100);
+ if (fromc) {
+ emitcode ("clr","a");
+ emitcode ("movc", "a,@a+dptr");
+ } else
+ emitcode ("movx", "a,@dptr");
+ emitcode ("movx", "@dptr,a");
+ emitcode ("inc", "dptr");
+ emitcode ("inc", "dptr");
+ emitcode ("mov","a,b");
+ emitcode ("orl","a,_ap");
+ emitcode ("jz","!tlabel",lbl1->key+100);
+ emitcode ("mov","a,_ap");
+ emitcode ("add","a,#!constbyte",0xFF);
+ emitcode ("mov","_ap,a");
+ emitcode ("mov","a,b");
+ emitcode ("addc","a,#!constbyte",0xFF);
+ emitcode ("mov","b,a");
+ emitcode ("sjmp","!tlabel",lbl->key+100);
+ emitcode ("","!tlabeldef",lbl1->key+100);
+ }
+ emitcode ("mov", "dps,#0");
+ _G.dptrInUse = _G.dptr1InUse = 0;
+ unsavermask(rsave);
+
+}
+
+/*-----------------------------------------------------------------*/
+/* genMemcmpX2X - gen code for memcmp xdata to xdata */
+/*-----------------------------------------------------------------*/
+static void genMemcmpX2X( iCode *ic, int nparms, operand **parms, int fromc)
+{
+ operand *from , *to , *count;
+ symbol *lbl,*lbl2;
+ bitVect *rsave;
+ int i;
+
+ /* we know it has to be 3 parameters */
+ assert (nparms == 3);
+
+ rsave = newBitVect(16);
+ /* save DPTR if it needs to be saved */
+ for (i = DPL_IDX ; i <= B_IDX ; i++ ) {
+ if (bitVectBitValue(ic->rMask,i))
+ rsave = bitVectSetBit(rsave,i);
+ }
+ rsave = bitVectIntersect(rsave,bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+ savermask(rsave);
+
+ to = parms[0];
+ from = parms[1];
+ count = parms[2];
+
+ aopOp (from, ic->next, FALSE, FALSE);
+
+ /* get from into DPTR1 */
+ emitcode ("mov", "dpl1,%s", aopGet (AOP (from), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph1,%s", aopGet (AOP (from), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24) {
+ emitcode ("mov", "dpx1,%s", aopGet (AOP (from), 2, FALSE, FALSE, NULL));
+ }
+
+ freeAsmop (from, NULL, ic, FALSE);
+ aopOp (to, ic, FALSE, FALSE);
+ /* get "to" into DPTR */
+ /* if the operand is already in dptr
+ then we do nothing else we move the value to dptr */
+ if (AOP_TYPE (to) != AOP_STR) {
+ /* if already in DPTR then we need to push */
+ if (AOP_TYPE(to) == AOP_DPTR) {
+ emitcode ("push", "%s", aopGet (AOP (to), 0, FALSE, TRUE, NULL));
+ emitcode ("push", "%s", aopGet (AOP (to), 1, FALSE, TRUE, NULL));
+ if (options.model == MODEL_FLAT24)
+ emitcode ("mov", "dpx,%s", aopGet (AOP (to), 2, FALSE, FALSE, NULL));
+ emitcode ("pop", "dph");
+ emitcode ("pop", "dpl");
+ } else {
+ _startLazyDPSEvaluation ();
+ /* if this is remateriazable */
+ if (AOP_TYPE (to) == AOP_IMMD) {
+ emitcode ("mov", "dptr,%s", aopGet (AOP (to), 0, TRUE, FALSE, NULL));
+ } else { /* we need to get it byte by byte */
+ emitcode ("mov", "dpl,%s", aopGet (AOP (to), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph,%s", aopGet (AOP (to), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24) {
+ emitcode ("mov", "dpx,%s", aopGet (AOP (to), 2, FALSE, FALSE, NULL));
+ }
+ }
+ _endLazyDPSEvaluation ();
+ }
}
- else
+ freeAsmop (to, NULL, ic, FALSE);
+ _G.dptrInUse = _G.dptr1InUse = 1;
+ aopOp (count, ic->next->next, FALSE,FALSE);
+ lbl =newiTempLabel(NULL);
+ lbl2 =newiTempLabel(NULL);
+
+ /* now for the actual compare */
+ if (AOP_TYPE(count) == AOP_LIT &&
+ (int)floatFromVal (AOP(count)->aopu.aop_lit) <= 256) {
+ emitcode ("mov", "b,%s",aopGet(AOP(count),0,FALSE,FALSE,NULL));
+ if (fromc)
+ emitcode("lcall","__bi_memcmpc2x_s");
+ else
+ emitcode("lcall","__bi_memcmpx2x_s");
+ freeAsmop (count, NULL, ic, FALSE);
+ aopOp (IC_RESULT(ic), ic, FALSE,FALSE);
+ aopPut(AOP(IC_RESULT(ic)),"a",0);
+ freeAsmop (IC_RESULT(ic), NULL, ic, FALSE);
+ } else {
+ symbol *lbl1 = newiTempLabel(NULL);
+
+ emitcode("push","ar0");
+ emitcode (";"," Auto increment but no djnz");
+ emitcode ("mov","_ap,%s",aopGet (AOP (count), 0, FALSE, TRUE, NULL));
+ emitcode ("mov","b,%s",aopGet (AOP (count), 1, FALSE, TRUE, NULL));
+ freeAsmop (count, NULL, ic, FALSE);
+ emitcode ("mov", "dps,#!constbyte",0x21); /* Select DPTR2 & auto-toggle. */
+ emitcode ("","!tlabeldef",lbl->key+100);
+ if (fromc) {
+ emitcode ("clr","a");
+ emitcode ("movc", "a,@a+dptr");
+ } else
+ emitcode ("movx", "a,@dptr");
+ emitcode ("mov","r0,a");
+ emitcode ("movx", "a,@dptr");
+ emitcode ("clr","c");
+ emitcode ("subb","a,r0");
+ emitcode ("jnz","!tlabel",lbl2->key+100);
+ emitcode ("inc", "dptr");
+ emitcode ("inc", "dptr");
+ emitcode ("mov","a,b");
+ emitcode ("orl","a,_ap");
+ emitcode ("jz","!tlabel",lbl1->key+100);
+ emitcode ("mov","a,_ap");
+ emitcode ("add","a,#!constbyte",0xFF);
+ emitcode ("mov","_ap,a");
+ emitcode ("mov","a,b");
+ emitcode ("addc","a,#!constbyte",0xFF);
+ emitcode ("mov","b,a");
+ emitcode ("sjmp","!tlabel",lbl->key+100);
+ emitcode ("","!tlabeldef",lbl1->key+100);
+ emitcode ("clr","a");
+ emitcode ("","!tlabeldef",lbl2->key+100);
+ aopOp (IC_RESULT(ic), ic, FALSE,FALSE);
+ aopPut(AOP(IC_RESULT(ic)),"a",0);
+ freeAsmop (IC_RESULT(ic), NULL, ic, FALSE);
+ emitcode("pop","ar0");
+ emitcode ("mov", "dps,#0");
+ }
+ _G.dptrInUse = _G.dptr1InUse = 0;
+ unsavermask(rsave);
+
+}
+
+/*-----------------------------------------------------------------*/
+/* genInp - gen code for __builtin_inp read data from a mem mapped */
+/* port, first parameter output area second parameter pointer to */
+/* port third parameter count */
+/*-----------------------------------------------------------------*/
+static void genInp( iCode *ic, int nparms, operand **parms)
+{
+ operand *from , *to , *count;
+ symbol *lbl;
+ bitVect *rsave;
+ int i;
+
+ /* we know it has to be 3 parameters */
+ assert (nparms == 3);
+
+ rsave = newBitVect(16);
+ /* save DPTR if it needs to be saved */
+ for (i = DPL_IDX ; i <= B_IDX ; i++ ) {
+ if (bitVectBitValue(ic->rMask,i))
+ rsave = bitVectSetBit(rsave,i);
+ }
+ rsave = bitVectIntersect(rsave,bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+ savermask(rsave);
+
+ to = parms[0];
+ from = parms[1];
+ count = parms[2];
+
+ aopOp (from, ic->next, FALSE, FALSE);
+
+ /* get from into DPTR1 */
+ emitcode ("mov", "dpl1,%s", aopGet (AOP (from), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph1,%s", aopGet (AOP (from), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24) {
+ emitcode ("mov", "dpx1,%s", aopGet (AOP (from), 2, FALSE, FALSE, NULL));
+ }
+
+ freeAsmop (from, NULL, ic, FALSE);
+ aopOp (to, ic, FALSE, FALSE);
+ /* get "to" into DPTR */
+ /* if the operand is already in dptr
+ then we do nothing else we move the value to dptr */
+ if (AOP_TYPE (to) != AOP_STR) {
+ /* if already in DPTR then we need to push */
+ if (AOP_TYPE(to) == AOP_DPTR) {
+ emitcode ("push", "%s", aopGet (AOP (to), 0, FALSE, TRUE, NULL));
+ emitcode ("push", "%s", aopGet (AOP (to), 1, FALSE, TRUE, NULL));
+ if (options.model == MODEL_FLAT24)
+ emitcode ("mov", "dpx,%s", aopGet (AOP (to), 2, FALSE, FALSE, NULL));
+ emitcode ("pop", "dph");
+ emitcode ("pop", "dpl");
+ } else {
+ _startLazyDPSEvaluation ();
+ /* if this is remateriazable */
+ if (AOP_TYPE (to) == AOP_IMMD) {
+ emitcode ("mov", "dptr,%s", aopGet (AOP (to), 0, TRUE, FALSE, NULL));
+ } else { /* we need to get it byte by byte */
+ emitcode ("mov", "dpl,%s", aopGet (AOP (to), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph,%s", aopGet (AOP (to), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24) {
+ emitcode ("mov", "dpx,%s", aopGet (AOP (to), 2, FALSE, FALSE, NULL));
+ }
+ }
+ _endLazyDPSEvaluation ();
+ }
+ }
+ freeAsmop (to, NULL, ic, FALSE);
+
+ _G.dptrInUse = _G.dptr1InUse = 1;
+ aopOp (count, ic->next->next, FALSE,FALSE);
+ lbl =newiTempLabel(NULL);
+
+ /* now for the actual copy */
+ if (AOP_TYPE(count) == AOP_LIT &&
+ (int)floatFromVal (AOP(count)->aopu.aop_lit) <= 256) {
+ emitcode (";","OH JOY auto increment with djnz (very fast)");
+ emitcode ("mov", "dps,#!constbyte",0x1); /* Select DPTR2 */
+ emitcode ("mov", "b,%s",aopGet(AOP(count),0,FALSE,FALSE,NULL));
+ freeAsmop (count, NULL, ic, FALSE);
+ emitcode ("","!tlabeldef",lbl->key+100);
+ emitcode ("movx", "a,@dptr"); /* read data from port */
+ emitcode ("dec","dps"); /* switch to DPTR */
+ emitcode ("movx", "@dptr,a"); /* save into location */
+ emitcode ("inc", "dptr"); /* point to next area */
+ emitcode ("inc","dps"); /* switch to DPTR2 */
+ emitcode ("djnz","b,!tlabel",lbl->key+100);
+ } else {
+ symbol *lbl1 = newiTempLabel(NULL);
+
+ emitcode (";"," Auto increment but no djnz");
+ emitcode ("mov","_ap,%s",aopGet (AOP (count), 0, FALSE, TRUE, NULL));
+ emitcode ("mov","b,%s",aopGet (AOP (count), 1, FALSE, TRUE, NULL));
+ freeAsmop (count, NULL, ic, FALSE);
+ emitcode ("mov", "dps,#!constbyte",0x1); /* Select DPTR2 */
+ emitcode ("","!tlabeldef",lbl->key+100);
+ emitcode ("movx", "a,@dptr");
+ emitcode ("dec","dps"); /* switch to DPTR */
+ emitcode ("movx", "@dptr,a");
+ emitcode ("inc", "dptr");
+ emitcode ("inc","dps"); /* switch to DPTR2 */
+/* emitcode ("djnz","b,!tlabel",lbl->key+100); */
+/* emitcode ("djnz","_ap,!tlabel",lbl->key+100); */
+ emitcode ("mov","a,b");
+ emitcode ("orl","a,_ap");
+ emitcode ("jz","!tlabel",lbl1->key+100);
+ emitcode ("mov","a,_ap");
+ emitcode ("add","a,#!constbyte",0xFF);
+ emitcode ("mov","_ap,a");
+ emitcode ("mov","a,b");
+ emitcode ("addc","a,#!constbyte",0xFF);
+ emitcode ("mov","b,a");
+ emitcode ("sjmp","!tlabel",lbl->key+100);
+ emitcode ("","!tlabeldef",lbl1->key+100);
+ }
+ emitcode ("mov", "dps,#0");
+ _G.dptrInUse = _G.dptr1InUse = 0;
+ unsavermask(rsave);
+
+}
+
+/*-----------------------------------------------------------------*/
+/* genOutp - gen code for __builtin_inp write data to a mem mapped */
+/* port, first parameter output area second parameter pointer to */
+/* port third parameter count */
+/*-----------------------------------------------------------------*/
+static void genOutp( iCode *ic, int nparms, operand **parms)
+{
+ operand *from , *to , *count;
+ symbol *lbl;
+ bitVect *rsave;
+ int i;
+
+ /* we know it has to be 3 parameters */
+ assert (nparms == 3);
+
+ rsave = newBitVect(16);
+ /* save DPTR if it needs to be saved */
+ for (i = DPL_IDX ; i <= B_IDX ; i++ ) {
+ if (bitVectBitValue(ic->rMask,i))
+ rsave = bitVectSetBit(rsave,i);
+ }
+ rsave = bitVectIntersect(rsave,bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+ savermask(rsave);
+
+ to = parms[0];
+ from = parms[1];
+ count = parms[2];
+
+ aopOp (from, ic->next, FALSE, FALSE);
+
+ /* get from into DPTR1 */
+ emitcode ("mov", "dpl1,%s", aopGet (AOP (from), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph1,%s", aopGet (AOP (from), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24) {
+ emitcode ("mov", "dpx1,%s", aopGet (AOP (from), 2, FALSE, FALSE, NULL));
+ }
+
+ freeAsmop (from, NULL, ic, FALSE);
+ aopOp (to, ic, FALSE, FALSE);
+ /* get "to" into DPTR */
+ /* if the operand is already in dptr
+ then we do nothing else we move the value to dptr */
+ if (AOP_TYPE (to) != AOP_STR) {
+ /* if already in DPTR then we need to push */
+ if (AOP_TYPE(to) == AOP_DPTR) {
+ emitcode ("push", "%s", aopGet (AOP (to), 0, FALSE, TRUE, NULL));
+ emitcode ("push", "%s", aopGet (AOP (to), 1, FALSE, TRUE, NULL));
+ if (options.model == MODEL_FLAT24)
+ emitcode ("mov", "dpx,%s", aopGet (AOP (to), 2, FALSE, FALSE, NULL));
+ emitcode ("pop", "dph");
+ emitcode ("pop", "dpl");
+ } else {
+ _startLazyDPSEvaluation ();
+ /* if this is remateriazable */
+ if (AOP_TYPE (to) == AOP_IMMD) {
+ emitcode ("mov", "dptr,%s", aopGet (AOP (to), 0, TRUE, FALSE, NULL));
+ } else { /* we need to get it byte by byte */
+ emitcode ("mov", "dpl,%s", aopGet (AOP (to), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph,%s", aopGet (AOP (to), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24) {
+ emitcode ("mov", "dpx,%s", aopGet (AOP (to), 2, FALSE, FALSE, NULL));
+ }
+ }
+ _endLazyDPSEvaluation ();
+ }
+ }
+ freeAsmop (to, NULL, ic, FALSE);
+
+ _G.dptrInUse = _G.dptr1InUse = 1;
+ aopOp (count, ic->next->next, FALSE,FALSE);
+ lbl =newiTempLabel(NULL);
+
+ /* now for the actual copy */
+ if (AOP_TYPE(count) == AOP_LIT &&
+ (int)floatFromVal (AOP(count)->aopu.aop_lit) <= 256) {
+ emitcode (";","OH JOY auto increment with djnz (very fast)");
+ emitcode ("mov", "dps,#!constbyte",0x0); /* Select DPTR */
+ emitcode ("mov", "b,%s",aopGet(AOP(count),0,FALSE,FALSE,NULL));
+ emitcode ("","!tlabeldef",lbl->key+100);
+ emitcode ("movx", "a,@dptr"); /* read data from port */
+ emitcode ("inc","dps"); /* switch to DPTR2 */
+ emitcode ("movx", "@dptr,a"); /* save into location */
+ emitcode ("inc", "dptr"); /* point to next area */
+ emitcode ("dec","dps"); /* switch to DPTR */
+ emitcode ("djnz","b,!tlabel",lbl->key+100);
+ freeAsmop (count, NULL, ic, FALSE);
+ } else {
+ symbol *lbl1 = newiTempLabel(NULL);
+
+ emitcode (";"," Auto increment but no djnz");
+ emitcode ("mov","_ap,%s",aopGet (AOP (count), 0, FALSE, TRUE, NULL));
+ emitcode ("mov","b,%s",aopGet (AOP (count), 1, FALSE, TRUE, NULL));
+ freeAsmop (count, NULL, ic, FALSE);
+ emitcode ("mov", "dps,#!constbyte",0x0); /* Select DPTR */
+ emitcode ("","!tlabeldef",lbl->key+100);
+ emitcode ("movx", "a,@dptr");
+ emitcode ("inc", "dptr");
+ emitcode ("inc","dps"); /* switch to DPTR2 */
+ emitcode ("movx", "@dptr,a");
+ emitcode ("dec","dps"); /* switch to DPTR */
+ emitcode ("mov","a,b");
+ emitcode ("orl","a,_ap");
+ emitcode ("jz","!tlabel",lbl1->key+100);
+ emitcode ("mov","a,_ap");
+ emitcode ("add","a,#!constbyte",0xFF);
+ emitcode ("mov","_ap,a");
+ emitcode ("mov","a,b");
+ emitcode ("addc","a,#!constbyte",0xFF);
+ emitcode ("mov","b,a");
+ emitcode ("sjmp","!tlabel",lbl->key+100);
+ emitcode ("","!tlabeldef",lbl1->key+100);
+ }
+ emitcode ("mov", "dps,#0");
+ _G.dptrInUse = _G.dptr1InUse = 0;
+ unsavermask(rsave);
+
+}
+
+/*-----------------------------------------------------------------*/
+/* genSwapW - swap lower & high order bytes */
+/*-----------------------------------------------------------------*/
+static void genSwapW(iCode *ic, int nparms, operand **parms)
+{
+ operand *dest;
+ operand *src;
+ assert (nparms==1);
+
+ src = parms[0];
+ dest=IC_RESULT(ic);
+
+ assert(getSize(operandType(src))==2);
+
+ aopOp (src, ic, FALSE, FALSE);
+ emitcode ("mov","a,%s",aopGet(AOP(src),0,FALSE,FALSE,NULL));
+ _G.accInUse++;
+ MOVB(aopGet(AOP(src),1,FALSE,FALSE,"b"));
+ _G.accInUse--;
+ freeAsmop (src, NULL, ic, FALSE);
+
+ aopOp (dest,ic, FALSE, FALSE);
+ aopPut(AOP(dest),"b",0);
+ aopPut(AOP(dest),"a",1);
+ freeAsmop (dest, NULL, ic, FALSE);
+}
+
+/*-----------------------------------------------------------------*/
+/* genMemsetX - gencode for memSetX data */
+/*-----------------------------------------------------------------*/
+static void genMemsetX(iCode *ic, int nparms, operand **parms)
+{
+ operand *to , *val , *count;
+ symbol *lbl;
+ char *l;
+ int i;
+ bitVect *rsave;
+
+ /* we know it has to be 3 parameters */
+ assert (nparms == 3);
+
+ to = parms[0];
+ val = parms[1];
+ count = parms[2];
+
+ /* save DPTR if it needs to be saved */
+ rsave = newBitVect(16);
+ for (i = DPL_IDX ; i <= B_IDX ; i++ ) {
+ if (bitVectBitValue(ic->rMask,i))
+ rsave = bitVectSetBit(rsave,i);
+ }
+ rsave = bitVectIntersect(rsave,bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+ savermask(rsave);
+
+ aopOp (to, ic, FALSE, FALSE);
+ /* get "to" into DPTR */
+ /* if the operand is already in dptr
+ then we do nothing else we move the value to dptr */
+ if (AOP_TYPE (to) != AOP_STR) {
+ /* if already in DPTR then we need to push */
+ if (AOP_TYPE(to) == AOP_DPTR) {
+ emitcode ("push", "%s", aopGet (AOP (to), 0, FALSE, TRUE, NULL));
+ emitcode ("push", "%s", aopGet (AOP (to), 1, FALSE, TRUE, NULL));
+ if (options.model == MODEL_FLAT24)
+ emitcode ("mov", "dpx,%s", aopGet (AOP (to), 2, FALSE, FALSE, NULL));
+ emitcode ("pop", "dph");
+ emitcode ("pop", "dpl");
+ } else {
+ _startLazyDPSEvaluation ();
+ /* if this is remateriazable */
+ if (AOP_TYPE (to) == AOP_IMMD) {
+ emitcode ("mov", "dptr,%s", aopGet (AOP (to), 0, TRUE, FALSE, NULL));
+ } else { /* we need to get it byte by byte */
+ emitcode ("mov", "dpl,%s", aopGet (AOP (to), 0, FALSE, FALSE, NULL));
+ emitcode ("mov", "dph,%s", aopGet (AOP (to), 1, FALSE, FALSE, NULL));
+ if (options.model == MODEL_FLAT24) {
+ emitcode ("mov", "dpx,%s", aopGet (AOP (to), 2, FALSE, FALSE, NULL));
+ }
+ }
+ _endLazyDPSEvaluation ();
+ }
+ }
+ freeAsmop (to, NULL, ic, FALSE);
+
+ aopOp (val, ic->next->next, FALSE,FALSE);
+ aopOp (count, ic->next->next, FALSE,FALSE);
+ lbl =newiTempLabel(NULL);
+ /* now for the actual copy */
+ if (AOP_TYPE(count) == AOP_LIT &&
+ (int)floatFromVal (AOP(count)->aopu.aop_lit) <= 256) {
+ l = aopGet(AOP (val), 0, FALSE, FALSE, NULL);
+ emitcode ("mov", "b,%s",aopGet(AOP(count),0,FALSE,FALSE,NULL));
+ MOVA(l);
+ emitcode ("","!tlabeldef",lbl->key+100);
+ emitcode ("movx", "@dptr,a");
+ emitcode ("inc", "dptr");
+ emitcode ("djnz","b,!tlabel",lbl->key+100);
+ } else {
+ symbol *lbl1 = newiTempLabel(NULL);
+
+ emitcode ("mov","_ap,%s",aopGet (AOP (count), 0, FALSE, TRUE, NULL));
+ emitcode ("mov","b,%s",aopGet (AOP (count), 1, FALSE, TRUE, NULL));
+ emitcode ("","!tlabeldef",lbl->key+100);
+ MOVA (aopGet(AOP (val), 0, FALSE, FALSE, NULL));
+ emitcode ("movx", "@dptr,a");
+ emitcode ("inc", "dptr");
+ emitcode ("mov","a,b");
+ emitcode ("orl","a,_ap");
+ emitcode ("jz","!tlabel",lbl1->key+100);
+ emitcode ("mov","a,_ap");
+ emitcode ("add","a,#!constbyte",0xFF);
+ emitcode ("mov","_ap,a");
+ emitcode ("mov","a,b");
+ emitcode ("addc","a,#!constbyte",0xFF);
+ emitcode ("mov","b,a");
+ emitcode ("sjmp","!tlabel",lbl->key+100);
+ emitcode ("","!tlabeldef",lbl1->key+100);
+ }
+ freeAsmop (count, NULL, ic, FALSE);
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genNatLibLoadPrimitive - calls TINI api function to load primitive */
+/*-----------------------------------------------------------------*/
+static void genNatLibLoadPrimitive(iCode *ic, int nparms, operand **parms,int size)
+{
+ bitVect *rsave ;
+ operand *pnum, *result;
+ int i;
+
+ assert (nparms==1);
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ pnum = parms[0];
+ aopOp (pnum, ic, FALSE, FALSE);
+ emitcode ("mov","a,%s",aopGet(AOP(pnum),0,FALSE,FALSE,DP2_RESULT_REG));
+ freeAsmop (pnum, NULL, ic, FALSE);
+ emitcode ("lcall","NatLib_LoadPrimitive");
+ aopOp (result=IC_RESULT(ic), ic, FALSE, FALSE);
+ if (aopHasRegs(AOP(result),R0_IDX,R1_IDX) ||
+ aopHasRegs(AOP(result),R2_IDX,R3_IDX) ) {
+ for (i = (size-1) ; i >= 0 ; i-- ) {
+ emitcode ("push","a%s",javaRet[i]);
+ }
+ for (i=0; i < size ; i++ ) {
+ emitcode ("pop","a%s",
+ aopGet(AOP(result),i,FALSE,FALSE,DP2_RESULT_REG));
+ }
+ } else {
+ for (i = 0 ; i < size ; i++ ) {
+ aopPut(AOP(result),javaRet[i],i);
+ }
+ }
+ freeAsmop (result, NULL, ic, FALSE);
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genNatLibLoadPointer - calls TINI api function to load pointer */
+/*-----------------------------------------------------------------*/
+static void genNatLibLoadPointer(iCode *ic, int nparms, operand **parms)
+{
+ bitVect *rsave ;
+ operand *pnum, *result;
+ int size = 3;
+ int i;
+
+ assert (nparms==1);
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ pnum = parms[0];
+ aopOp (pnum, ic, FALSE, FALSE);
+ emitcode ("mov","a,%s",aopGet(AOP(pnum),0,FALSE,FALSE,DP2_RESULT_REG));
+ freeAsmop (pnum, NULL, ic, FALSE);
+ emitcode ("lcall","NatLib_LoadPointer");
+ aopOp (result=IC_RESULT(ic), ic, FALSE, FALSE);
+ if (AOP_TYPE(result)!=AOP_STR) {
+ for (i = 0 ; i < size ; i++ ) {
+ aopPut(AOP(result),fReturn[i],i);
+ }
+ }
+ freeAsmop (result, NULL, ic, FALSE);
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genNatLibInstallStateBlock - */
+/*-----------------------------------------------------------------*/
+static void genNatLibInstallStateBlock(iCode *ic, int nparms,
+ operand **parms, const char *name)
+{
+ bitVect *rsave ;
+ operand *psb, *handle;
+ assert (nparms==2);
+
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+ psb = parms[0];
+ handle = parms[1];
+
+ /* put pointer to state block into DPTR1 */
+ aopOp (psb, ic, FALSE, FALSE);
+ if (AOP_TYPE (psb) == AOP_IMMD) {
+ emitcode ("mov","dps,#1");
+ emitcode ("mov", "dptr,%s",
+ aopGet (AOP (psb), 0, TRUE, FALSE, DP2_RESULT_REG));
+ emitcode ("mov","dps,#0");
+ } else {
+ emitcode ("mov","dpl1,%s",aopGet(AOP(psb),0,FALSE,FALSE,DP2_RESULT_REG));
+ emitcode ("mov","dph1,%s",aopGet(AOP(psb),1,FALSE,FALSE,DP2_RESULT_REG));
+ emitcode ("mov","dpx1,%s",aopGet(AOP(psb),2,FALSE,FALSE,DP2_RESULT_REG));
+ }
+ freeAsmop (psb, NULL, ic, FALSE);
+
+ /* put libraryID into DPTR */
+ emitcode ("mov","dptr,#LibraryID");
+
+ /* put handle into r3:r2 */
+ aopOp (handle, ic, FALSE, FALSE);
+ if (aopHasRegs(AOP(handle),R2_IDX,R3_IDX)) {
+ emitcode ("push","%s",aopGet(AOP(handle),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("push","%s",aopGet(AOP(handle),1,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("pop","ar3");
+ emitcode ("pop","ar2");
+ } else {
+ emitcode ("mov","r2,%s",aopGet(AOP(handle),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("mov","r3,%s",aopGet(AOP(handle),1,FALSE,TRUE,DP2_RESULT_REG));
+ }
+ freeAsmop (psb, NULL, ic, FALSE);
+
+ /* make the call */
+ emitcode ("lcall","NatLib_Install%sStateBlock",name);
+
+ /* put return value into place*/
+ _G.accInUse++;
+ aopOp (IC_RESULT(ic), ic, FALSE, FALSE);
+ _G.accInUse--;
+ aopPut(AOP(IC_RESULT(ic)),"a",0);
+ freeAsmop (IC_RESULT(ic), NULL, ic, FALSE);
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genNatLibRemoveStateBlock - */
+/*-----------------------------------------------------------------*/
+static void genNatLibRemoveStateBlock(iCode *ic,int nparms,const char *name)
+{
+ bitVect *rsave ;
+
+ assert(nparms==0);
+
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ /* put libraryID into DPTR */
+ emitcode ("mov","dptr,#LibraryID");
+ /* make the call */
+ emitcode ("lcall","NatLib_Remove%sStateBlock",name);
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genNatLibGetStateBlock - */
+/*-----------------------------------------------------------------*/
+static void genNatLibGetStateBlock(iCode *ic,int nparms,
+ operand **parms,const char *name)
+{
+ bitVect *rsave ;
+ symbol *lbl = newiTempLabel(NULL);
+
+ assert(nparms==0);
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ /* put libraryID into DPTR */
+ emitcode ("mov","dptr,#LibraryID");
+ /* make the call */
+ emitcode ("lcall","NatLib_Remove%sStateBlock",name);
+ emitcode ("jnz","!tlabel",lbl->key+100);
+
+ /* put return value into place */
+ aopOp(IC_RESULT(ic),ic,FALSE,FALSE);
+ if (aopHasRegs(AOP(IC_RESULT(ic)),R2_IDX,R3_IDX)) {
+ emitcode ("push","ar3");
+ emitcode ("push","ar2");
+ emitcode ("pop","%s",
+ aopGet(AOP(IC_RESULT(ic)),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("pop","%s",
+ aopGet(AOP(IC_RESULT(ic)),1,FALSE,TRUE,DP2_RESULT_REG));
+ } else {
+ aopPut(AOP(IC_RESULT(ic)),"r2",0);
+ aopPut(AOP(IC_RESULT(ic)),"r3",1);
+ }
+ freeAsmop (IC_RESULT(ic), NULL, ic, FALSE);
+ emitcode ("","!tlabeldef",lbl->key+100);
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genMMMalloc - */
+/*-----------------------------------------------------------------*/
+static void genMMMalloc (iCode *ic,int nparms, operand **parms,
+ int size, const char *name)
+{
+ bitVect *rsave ;
+ operand *bsize;
+ symbol *rsym;
+ symbol *lbl = newiTempLabel(NULL);
+
+ assert (nparms == 1);
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ bsize=parms[0];
+ aopOp (bsize,ic,FALSE,FALSE);
+
+ /* put the size in R4-R2 */
+ if (aopHasRegs(AOP(bsize),R2_IDX, (size==3 ? R4_IDX: R3_IDX))) {
+ emitcode("push","%s",aopGet(AOP(bsize),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode("push","%s",aopGet(AOP(bsize),1,FALSE,TRUE,DP2_RESULT_REG));
+ if (size==3) {
+ emitcode("push","%s",aopGet(AOP(bsize),2,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode("pop","ar4");
+ }
+ emitcode("pop","ar3");
+ emitcode("pop","ar2");
+ } else {
+ emitcode ("mov","r2,%s",aopGet(AOP(bsize),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("mov","r3,%s",aopGet(AOP(bsize),1,FALSE,TRUE,DP2_RESULT_REG));
+ if (size==3) {
+ emitcode("mov","r4,%s",aopGet(AOP(bsize),2,FALSE,TRUE,DP2_RESULT_REG));
+ }
+ }
+ freeAsmop (bsize, NULL, ic, FALSE);
+
+ /* make the call */
+ emitcode ("lcall","MM_%s",name);
+ emitcode ("jz","!tlabel",lbl->key+100);
+ emitcode ("mov","r2,#!constbyte",0xff);
+ emitcode ("mov","r3,#!constbyte",0xff);
+ emitcode ("","!tlabeldef",lbl->key+100);
+ /* we don't care about the pointer : we just save the handle */
+ rsym = OP_SYMBOL(IC_RESULT(ic));
+ if (rsym->liveFrom != rsym->liveTo) {
+ aopOp(IC_RESULT(ic),ic,FALSE,FALSE);
+ if (aopHasRegs(AOP(IC_RESULT(ic)),R2_IDX,R3_IDX)) {
+ emitcode ("push","ar3");
+ emitcode ("push","ar2");
+ emitcode ("pop","%s",
+ aopGet(AOP(IC_RESULT(ic)),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("pop","%s",
+ aopGet(AOP(IC_RESULT(ic)),1,FALSE,TRUE,DP2_RESULT_REG));
+ } else {
+ aopPut(AOP(IC_RESULT(ic)),"r2",0);
+ aopPut(AOP(IC_RESULT(ic)),"r3",1);
+ }
+ freeAsmop (IC_RESULT(ic), NULL, ic, FALSE);
+ }
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genMMDeref - */
+/*-----------------------------------------------------------------*/
+static void genMMDeref (iCode *ic,int nparms, operand **parms)
+{
+ bitVect *rsave ;
+ operand *handle;
+
+ assert (nparms == 1);
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ handle=parms[0];
+ aopOp (handle,ic,FALSE,FALSE);
+
+ /* put the size in R4-R2 */
+ if (aopHasRegs(AOP(handle),R2_IDX,R3_IDX)) {
+ emitcode("push","%s",
+ aopGet(AOP(handle),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode("push","%s",
+ aopGet(AOP(handle),1,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode("pop","ar3");
+ emitcode("pop","ar2");
+ } else {
+ emitcode ("mov","r2,%s",
+ aopGet(AOP(handle),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("mov","r3,%s",
+ aopGet(AOP(handle),1,FALSE,TRUE,DP2_RESULT_REG));
+ }
+ freeAsmop (handle, NULL, ic, FALSE);
+
+ /* make the call */
+ emitcode ("lcall","MM_Deref");
+
+ {
+ symbol *rsym = OP_SYMBOL(IC_RESULT(ic));
+ if (rsym->liveFrom != rsym->liveTo) {
+ aopOp (IC_RESULT(ic),ic,FALSE,FALSE);
+ if (AOP_TYPE(IC_RESULT(ic)) != AOP_STR) {
+ _startLazyDPSEvaluation ();
+
+ aopPut(AOP(IC_RESULT(ic)),"dpl",0);
+ aopPut(AOP(IC_RESULT(ic)),"dph",1);
+ aopPut(AOP(IC_RESULT(ic)),"dpx",2);
+
+ _endLazyDPSEvaluation ();
+
+ }
+ }
+ }
+ freeAsmop (IC_RESULT(ic), NULL, ic, FALSE);
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genMMUnrestrictedPersist - */
+/*-----------------------------------------------------------------*/
+static void genMMUnrestrictedPersist(iCode *ic,int nparms, operand **parms)
+{
+ bitVect *rsave ;
+ operand *handle;
+
+ assert (nparms == 1);
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ handle=parms[0];
+ aopOp (handle,ic,FALSE,FALSE);
+
+ /* put the size in R3-R2 */
+ if (aopHasRegs(AOP(handle),R2_IDX,R3_IDX)) {
+ emitcode("push","%s",
+ aopGet(AOP(handle),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode("push","%s",
+ aopGet(AOP(handle),1,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode("pop","ar3");
+ emitcode("pop","ar2");
+ } else {
+ emitcode ("mov","r2,%s",
+ aopGet(AOP(handle),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("mov","r3,%s",
+ aopGet(AOP(handle),1,FALSE,TRUE,DP2_RESULT_REG));
+ }
+ freeAsmop (handle, NULL, ic, FALSE);
+
+ /* make the call */
+ emitcode ("lcall","MM_UnrestrictedPersist");
+
+ {
+ symbol *rsym = OP_SYMBOL(IC_RESULT(ic));
+ if (rsym->liveFrom != rsym->liveTo) {
+ aopOp (IC_RESULT(ic),ic,FALSE,FALSE);
+ aopPut(AOP(IC_RESULT(ic)),"a",0);
+ freeAsmop (IC_RESULT(ic), NULL, ic, FALSE);
+ }
+ }
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genSystemExecJavaProcess - */
+/*-----------------------------------------------------------------*/
+static void genSystemExecJavaProcess(iCode *ic,int nparms, operand **parms)
+{
+ bitVect *rsave ;
+ operand *handle, *pp;
+
+ assert (nparms==2);
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ pp = parms[0];
+ handle = parms[1];
+
+ /* put the handle in R3-R2 */
+ aopOp (handle,ic,FALSE,FALSE);
+ if (aopHasRegs(AOP(handle),R2_IDX,R3_IDX)) {
+ emitcode("push","%s",
+ aopGet(AOP(handle),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode("push","%s",
+ aopGet(AOP(handle),1,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode("pop","ar3");
+ emitcode("pop","ar2");
+ } else {
+ emitcode ("mov","r2,%s",
+ aopGet(AOP(handle),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("mov","r3,%s",
+ aopGet(AOP(handle),1,FALSE,TRUE,DP2_RESULT_REG));
+ }
+ freeAsmop (handle, NULL, ic, FALSE);
+
+ /* put pointer in DPTR */
+ aopOp (pp,ic,FALSE,FALSE);
+ if (AOP_TYPE(pp) == AOP_IMMD) {
+ emitcode ("mov", "dptr,%s",
+ aopGet (AOP (pp), 0, TRUE, FALSE, NULL));
+ } else if (AOP_TYPE(pp) != AOP_STR) { /* not already in dptr */
+ emitcode ("mov","dpl,%s",aopGet(AOP(pp),0,FALSE,FALSE,NULL));
+ emitcode ("mov","dph,%s",aopGet(AOP(pp),1,FALSE,FALSE,NULL));
+ emitcode ("mov","dpx,%s",aopGet(AOP(pp),2,FALSE,FALSE,NULL));
+ }
+ freeAsmop (handle, NULL, ic, FALSE);
+
+ /* make the call */
+ emitcode ("lcall","System_ExecJavaProcess");
+
+ /* put result in place */
+ {
+ symbol *rsym = OP_SYMBOL(IC_RESULT(ic));
+ if (rsym->liveFrom != rsym->liveTo) {
+ aopOp (IC_RESULT(ic),ic,FALSE,FALSE);
+ aopPut(AOP(IC_RESULT(ic)),"a",0);
+ freeAsmop (IC_RESULT(ic), NULL, ic, FALSE);
+ }
+ }
+
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genSystemRTCRegisters - */
+/*-----------------------------------------------------------------*/
+static void genSystemRTCRegisters(iCode *ic,int nparms, operand **parms,
+ char *name)
+{
+ bitVect *rsave ;
+ operand *pp;
+
+ assert (nparms==1);
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ pp=parms[0];
+ /* put pointer in DPTR */
+ aopOp (pp,ic,FALSE,FALSE);
+ if (AOP_TYPE (pp) == AOP_IMMD) {
+ emitcode ("mov","dps,#1");
+ emitcode ("mov", "dptr,%s",
+ aopGet (AOP (pp), 0, TRUE, FALSE, NULL));
+ emitcode ("mov","dps,#0");
+ } else {
+ emitcode ("mov","dpl1,%s",
+ aopGet(AOP(pp),0,FALSE,FALSE,DP2_RESULT_REG));
+ emitcode ("mov","dph1,%s",
+ aopGet(AOP(pp),1,FALSE,FALSE,DP2_RESULT_REG));
+ emitcode ("mov","dpx1,%s",
+ aopGet(AOP(pp),2,FALSE,FALSE,DP2_RESULT_REG));
+ }
+ freeAsmop (pp, NULL, ic, FALSE);
+
+ /* make the call */
+ emitcode ("lcall","System_%sRTCRegisters",name);
+
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genSystemThreadSleep - */
+/*-----------------------------------------------------------------*/
+static void genSystemThreadSleep(iCode *ic,int nparms, operand **parms, char *name)
+{
+ bitVect *rsave ;
+ operand *to, *s;
+
+ assert (nparms==1);
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ to = parms[0];
+ aopOp(to,ic,FALSE,FALSE);
+ if (aopHasRegs(AOP(to),R2_IDX,R3_IDX) ||
+ aopHasRegs(AOP(to),R0_IDX,R1_IDX) ) {
+ emitcode ("push","%s",
+ aopGet(AOP(to),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("push","%s",
+ aopGet(AOP(to),1,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("push","%s",
+ aopGet(AOP(to),2,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("push","%s",
+ aopGet(AOP(to),3,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("pop","ar3");
+ emitcode ("pop","ar2");
+ emitcode ("pop","ar1");
+ emitcode ("pop","ar0");
+ } else {
+ emitcode ("mov","r0,%s",
+ aopGet(AOP(to),0,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("mov","r1,%s",
+ aopGet(AOP(to),1,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("mov","r2,%s",
+ aopGet(AOP(to),2,FALSE,TRUE,DP2_RESULT_REG));
+ emitcode ("mov","r3,%s",
+ aopGet(AOP(to),3,FALSE,TRUE,DP2_RESULT_REG));
+ }
+ freeAsmop (to, NULL, ic, FALSE);
+
+ /* suspend in acc */
+ s = parms[1];
+ aopOp(s,ic,FALSE,FALSE);
+ emitcode ("mov","a,%s",
+ aopGet(AOP(s),0,FALSE,TRUE,NULL));
+ freeAsmop (s, NULL, ic, FALSE);
+
+ /* make the call */
+ emitcode ("lcall","System_%s",name);
+
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genSystemThreadResume - */
+/*-----------------------------------------------------------------*/
+static void genSystemThreadResume(iCode *ic,int nparms, operand **parms)
+{
+ bitVect *rsave ;
+ operand *tid,*pid;
+
+ assert (nparms==2);
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ tid = parms[0];
+ pid = parms[1];
+
+ /* PID in R0 */
+ aopOp(pid,ic,FALSE,FALSE);
+ emitcode ("mov","r0,%s",
+ aopGet(AOP(pid),0,FALSE,TRUE,DP2_RESULT_REG));
+ freeAsmop (pid, NULL, ic, FALSE);
+
+ /* tid into ACC */
+ aopOp(tid,ic,FALSE,FALSE);
+ emitcode ("mov","a,%s",
+ aopGet(AOP(tid),0,FALSE,TRUE,DP2_RESULT_REG));
+ freeAsmop (tid, NULL, ic, FALSE);
+
+ emitcode ("lcall","System_ThreadResume");
+
+ /* put result into place */
+ {
+ symbol *rsym = OP_SYMBOL(IC_RESULT(ic));
+ if (rsym->liveFrom != rsym->liveTo) {
+ aopOp (IC_RESULT(ic),ic,FALSE,FALSE);
+ aopPut(AOP(IC_RESULT(ic)),"a",0);
+ freeAsmop (IC_RESULT(ic), NULL, ic, FALSE);
+ }
+ }
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genSystemProcessResume - */
+/*-----------------------------------------------------------------*/
+static void genSystemProcessResume(iCode *ic,int nparms, operand **parms)
+{
+ bitVect *rsave ;
+ operand *pid;
+
+ assert (nparms==1);
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ pid = parms[0];
+
+ /* pid into ACC */
+ aopOp(pid,ic,FALSE,FALSE);
+ emitcode ("mov","a,%s",
+ aopGet(AOP(pid),0,FALSE,TRUE,DP2_RESULT_REG));
+ freeAsmop (pid, NULL, ic, FALSE);
+
+ emitcode ("lcall","System_ProcessResume");
+
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genSystem - */
+/*-----------------------------------------------------------------*/
+static void genSystem (iCode *ic,int nparms,char *name)
+{
+ assert(nparms == 0);
+
+ emitcode ("lcall","System_%s",name);
+}
+
+/*-----------------------------------------------------------------*/
+/* genSystemPoll - */
+/*-----------------------------------------------------------------*/
+static void genSystemPoll(iCode *ic,int nparms, operand **parms,char *name)
+{
+ bitVect *rsave ;
+ operand *fp;
+
+ assert (nparms==1);
+ /* save registers that need to be saved */
+ savermask(rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
+ ds390_rUmaskForOp (IC_RESULT(ic))));
+
+ fp = parms[0];
+ aopOp (fp,ic,FALSE,FALSE);
+ if (AOP_TYPE (fp) == AOP_IMMD) {
+ emitcode ("mov", "dptr,%s",
+ aopGet (AOP (fp), 0, TRUE, FALSE, DP2_RESULT_REG));
+ } else if (AOP_TYPE(fp) != AOP_STR) { /* not already in dptr */
+ emitcode ("mov","dpl,%s",
+ aopGet(AOP(fp),0,FALSE,FALSE,DP2_RESULT_REG));
+ emitcode ("mov","dph,%s",
+ aopGet(AOP(fp),1,FALSE,FALSE,DP2_RESULT_REG));
+ emitcode ("mov","dpx,%s",
+ aopGet(AOP(fp),2,FALSE,FALSE,DP2_RESULT_REG));
+ }
+ freeAsmop (fp, NULL, ic, FALSE);
+
+ emitcode ("lcall","System_%sPoll",name);
+
+ /* put result into place */
+ {
+ symbol *rsym = OP_SYMBOL(IC_RESULT(ic));
+ if (rsym->liveFrom != rsym->liveTo) {
+ aopOp (IC_RESULT(ic),ic,FALSE,FALSE);
+ aopPut(AOP(IC_RESULT(ic)),"a",0);
+ freeAsmop (IC_RESULT(ic), NULL, ic, FALSE);
+ }
+ }
+ unsavermask(rsave);
+}
+
+/*-----------------------------------------------------------------*/
+/* genSystemGetCurrentID - */
+/*-----------------------------------------------------------------*/
+static void genSystemGetCurrentID(iCode *ic,int nparms, operand **parms,char *name)
+{
+ assert (nparms==0);
+
+ emitcode ("lcall","System_GetCurrent%sId",name);
+ /* put result into place */
+ {
+ symbol *rsym = OP_SYMBOL(IC_RESULT(ic));
+ if (rsym->liveFrom != rsym->liveTo) {
+ aopOp (IC_RESULT(ic),ic,FALSE,FALSE);
+ aopPut(AOP(IC_RESULT(ic)),"a",0);
+ freeAsmop (IC_RESULT(ic), NULL, ic, FALSE);
+ }
+ }
+}
+
+/*-----------------------------------------------------------------*/
+/* genDummyRead - generate code for dummy read of volatiles */
+/*-----------------------------------------------------------------*/
+static void
+genDummyRead (iCode * ic)
+{
+ operand *op;
+ int size, offset;
+
+ D(emitcode("; genDummyRead",""));
+
+ op = IC_RIGHT (ic);
+ if (op && IS_SYMOP (op))
{
- _G.accInUse++;
- aopOp (IC_RESULT (ic), ic, FALSE, FALSE);
- _G.accInUse--;
- assignResultValue (IC_RESULT (ic));
+ aopOp (op, ic, FALSE, FALSE);
+
+ /* if the result is a bit */
+ if (AOP_TYPE (op) == AOP_CRY)
+ emitcode ("mov", "c,%s", AOP (op)->aopu.aop_dir);
+ else
+ {
+ /* bit variables done */
+ /* general case */
+ size = AOP_SIZE (op);
+ offset = 0;
+ while (size--)
+ {
+ MOVA (aopGet (AOP (op), offset, FALSE, FALSE, FALSE));
+ offset++;
+ }
+ }
+
+ freeAsmop (op, NULL, ic, TRUE);
}
- freeAsmop (IC_RESULT (ic), NULL, ic, TRUE);
+ op = IC_LEFT (ic);
+ if (op && IS_SYMOP (op))
+ {
+ aopOp (op, ic, FALSE, FALSE);
+
+ /* if the result is a bit */
+ if (AOP_TYPE (op) == AOP_CRY)
+ emitcode ("mov", "c,%s", AOP (op)->aopu.aop_dir);
+ else
+ {
+ /* bit variables done */
+ /* general case */
+ size = AOP_SIZE (op);
+ offset = 0;
+ while (size--)
+ {
+ MOVA (aopGet (AOP (op), offset, FALSE, FALSE, FALSE));
+ offset++;
+ }
+ }
+
+ freeAsmop (op, NULL, ic, TRUE);
+ }
+
+}
+
+/*-----------------------------------------------------------------*/
+/* genCritical - generate code for start of a critical sequence */
+/*-----------------------------------------------------------------*/
+static void
+genCritical (iCode *ic)
+{
+ symbol *tlbl = newiTempLabel (NULL);
+
+ D(emitcode("; genCritical",""));
+
+ if (IC_RESULT (ic))
+ aopOp (IC_RESULT (ic), ic, TRUE, FALSE);
+
+ emitcode ("setb", "c");
+ emitcode ("jbc", "ea,%05d$", (tlbl->key + 100)); /* atomic test & clear */
+ emitcode ("clr", "c");
+ emitcode ("", "%05d$:", (tlbl->key + 100));
+
+ if (IC_RESULT (ic))
+ outBitC (IC_RESULT (ic)); /* save old ea in an operand */
+ else
+ emitcode ("push", "psw"); /* save old ea via c in psw on top of stack*/
+
+ if (IC_RESULT (ic))
+ freeAsmop (IC_RESULT (ic), NULL, ic, TRUE);
+}
+
+/*-----------------------------------------------------------------*/
+/* genEndCritical - generate code for end of a critical sequence */
+/*-----------------------------------------------------------------*/
+static void
+genEndCritical (iCode *ic)
+{
+ D(emitcode("; genEndCritical",""));
+
+ if (IC_RIGHT (ic))
+ {
+ aopOp (IC_RIGHT (ic), ic, FALSE, FALSE);
+ if (AOP_TYPE (IC_RIGHT (ic)) == AOP_CRY)
+ {
+ emitcode ("mov", "c,%s", IC_RIGHT (ic)->aop->aopu.aop_dir);
+ emitcode ("mov", "ea,c");
+ }
+ else
+ {
+ MOVA (aopGet (AOP (IC_RIGHT (ic)), 0, FALSE, FALSE, FALSE));
+ emitcode ("rrc", "a");
+ emitcode ("mov", "ea,c");
+ }
+ freeAsmop (IC_RIGHT (ic), NULL, ic, TRUE);
+ }
+ else
+ {
+ emitcode ("pop", "psw"); /* restore ea via c in psw on top of stack */
+ emitcode ("mov", "ea,c");
+ }
+}
+
+
+
+/*-----------------------------------------------------------------*/
+/* genBuiltIn - calls the appropriate function to generating code */
+/* for a built in function */
+/*-----------------------------------------------------------------*/
+static void genBuiltIn (iCode *ic)
+{
+ operand *bi_parms[MAX_BUILTIN_ARGS];
+ int nbi_parms;
+ iCode *bi_iCode;
+ symbol *bif;
+
+ /* get all the arguments for a built in function */
+ bi_iCode = getBuiltinParms(ic,&nbi_parms,bi_parms);
+
+ /* which function is it */
+ bif = OP_SYMBOL(IC_LEFT(bi_iCode));
+ if (strcmp(bif->name,"__builtin_memcpy_x2x")==0) {
+ genMemcpyX2X(bi_iCode,nbi_parms,bi_parms,0);
+ } else if (strcmp(bif->name,"__builtin_memcpy_c2x")==0) {
+ genMemcpyX2X(bi_iCode,nbi_parms,bi_parms,1);
+ } else if (strcmp(bif->name,"__builtin_memcmp_x2x")==0) {
+ genMemcmpX2X(bi_iCode,nbi_parms,bi_parms,0);
+ } else if (strcmp(bif->name,"__builtin_memcmp_c2x")==0) {
+ genMemcmpX2X(bi_iCode,nbi_parms,bi_parms,1);
+ } else if (strcmp(bif->name,"__builtin_memset_x")==0) {
+ genMemsetX(bi_iCode,nbi_parms,bi_parms);
+ } else if (strcmp(bif->name,"__builtin_inp")==0) {
+ genInp(bi_iCode,nbi_parms,bi_parms);
+ } else if (strcmp(bif->name,"__builtin_outp")==0) {
+ genOutp(bi_iCode,nbi_parms,bi_parms);
+ } else if (strcmp(bif->name,"__builtin_swapw")==0) {
+ genSwapW(bi_iCode,nbi_parms,bi_parms);
+ /* JavaNative builtIns */
+ } else if (strcmp(bif->name,"NatLib_LoadByte")==0) {
+ genNatLibLoadPrimitive(bi_iCode,nbi_parms,bi_parms,1);
+ } else if (strcmp(bif->name,"NatLib_LoadShort")==0) {
+ genNatLibLoadPrimitive(bi_iCode,nbi_parms,bi_parms,2);
+ } else if (strcmp(bif->name,"NatLib_LoadInt")==0) {
+ genNatLibLoadPrimitive(bi_iCode,nbi_parms,bi_parms,4);
+ } else if (strcmp(bif->name,"NatLib_LoadPointer")==0) {
+ genNatLibLoadPointer(bi_iCode,nbi_parms,bi_parms);
+ } else if (strcmp(bif->name,"NatLib_InstallImmutableStateBlock")==0) {
+ genNatLibInstallStateBlock(bi_iCode,nbi_parms,bi_parms,"Immutable");
+ } else if (strcmp(bif->name,"NatLib_InstallEphemeralStateBlock")==0) {
+ genNatLibInstallStateBlock(bi_iCode,nbi_parms,bi_parms,"Ephemeral");
+ } else if (strcmp(bif->name,"NatLib_RemoveImmutableStateBlock")==0) {
+ genNatLibRemoveStateBlock(bi_iCode,nbi_parms,"Immutable");
+ } else if (strcmp(bif->name,"NatLib_RemoveEphemeralStateBlock")==0) {
+ genNatLibRemoveStateBlock(bi_iCode,nbi_parms,"Ephemeral");
+ } else if (strcmp(bif->name,"NatLib_GetImmutableStateBlock")==0) {
+ genNatLibGetStateBlock(bi_iCode,nbi_parms,bi_parms,"Immutable");
+ } else if (strcmp(bif->name,"NatLib_GetEphemeralStateBlock")==0) {
+ genNatLibGetStateBlock(bi_iCode,nbi_parms,bi_parms,"Ephemeral");
+ } else if (strcmp(bif->name,"MM_XMalloc")==0) {
+ genMMMalloc(bi_iCode,nbi_parms,bi_parms,3,"XMalloc");
+ } else if (strcmp(bif->name,"MM_Malloc")==0) {
+ genMMMalloc(bi_iCode,nbi_parms,bi_parms,2,"Malloc");
+ } else if (strcmp(bif->name,"MM_ApplicationMalloc")==0) {
+ genMMMalloc(bi_iCode,nbi_parms,bi_parms,2,"ApplicationMalloc");
+ } else if (strcmp(bif->name,"MM_Free")==0) {
+ genMMMalloc(bi_iCode,nbi_parms,bi_parms,2,"Free");
+ } else if (strcmp(bif->name,"MM_Deref")==0) {
+ genMMDeref(bi_iCode,nbi_parms,bi_parms);
+ } else if (strcmp(bif->name,"MM_UnrestrictedPersist")==0) {
+ genMMUnrestrictedPersist(bi_iCode,nbi_parms,bi_parms);
+ } else if (strcmp(bif->name,"System_ExecJavaProcess")==0) {
+ genSystemExecJavaProcess(bi_iCode,nbi_parms,bi_parms);
+ } else if (strcmp(bif->name,"System_GetRTCRegisters")==0) {
+ genSystemRTCRegisters(bi_iCode,nbi_parms,bi_parms,"Get");
+ } else if (strcmp(bif->name,"System_SetRTCRegisters")==0) {
+ genSystemRTCRegisters(bi_iCode,nbi_parms,bi_parms,"Set");
+ } else if (strcmp(bif->name,"System_ThreadSleep")==0) {
+ genSystemThreadSleep(bi_iCode,nbi_parms,bi_parms,"ThreadSleep");
+ } else if (strcmp(bif->name,"System_ThreadSleep_ExitCriticalSection")==0) {
+ genSystemThreadSleep(bi_iCode,nbi_parms,bi_parms,"ThreadSleep_ExitCriticalSection");
+ } else if (strcmp(bif->name,"System_ProcessSleep")==0) {
+ genSystemThreadSleep(bi_iCode,nbi_parms,bi_parms,"ProcessSleep");
+ } else if (strcmp(bif->name,"System_ProcessSleep_ExitCriticalSection")==0) {
+ genSystemThreadSleep(bi_iCode,nbi_parms,bi_parms,"ProcessSleep_ExitCriticalSection");
+ } else if (strcmp(bif->name,"System_ThreadResume")==0) {
+ genSystemThreadResume(bi_iCode,nbi_parms,bi_parms);
+ } else if (strcmp(bif->name,"System_SaveThread")==0) {
+ genSystemThreadResume(bi_iCode,nbi_parms,bi_parms);
+ } else if (strcmp(bif->name,"System_ThreadResume")==0) {
+ genSystemThreadResume(bi_iCode,nbi_parms,bi_parms);
+ } else if (strcmp(bif->name,"System_ProcessResume")==0) {
+ genSystemProcessResume(bi_iCode,nbi_parms,bi_parms);
+ } else if (strcmp(bif->name,"System_SaveJavaThreadState")==0) {
+ genSystem(bi_iCode,nbi_parms,"SaveJavaThreadState");
+ } else if (strcmp(bif->name,"System_RestoreJavaThreadState")==0) {
+ genSystem(bi_iCode,nbi_parms,"RestoreJavaThreadState");
+ } else if (strcmp(bif->name,"System_ProcessYield")==0) {
+ genSystem(bi_iCode,nbi_parms,"ProcessYield");
+ } else if (strcmp(bif->name,"System_ProcessSuspend")==0) {
+ genSystem(bi_iCode,nbi_parms,"ProcessSuspend");
+ } else if (strcmp(bif->name,"System_RegisterPoll")==0) {
+ genSystemPoll(bi_iCode,nbi_parms,bi_parms,"Register");
+ } else if (strcmp(bif->name,"System_RemovePoll")==0) {
+ genSystemPoll(bi_iCode,nbi_parms,bi_parms,"Remove");
+ } else if (strcmp(bif->name,"System_GetCurrentThreadId")==0) {
+ genSystemGetCurrentID(bi_iCode,nbi_parms,bi_parms,"Thread");
+ } else if (strcmp(bif->name,"System_GetCurrentProcessId")==0) {
+ genSystemGetCurrentID(bi_iCode,nbi_parms,bi_parms,"Process");
+ } else {
+ werror(E_INTERNAL_ERROR,__FILE__,__LINE__,"unknown builtin function encountered\n");
+ return ;
+ }
+ return ;
}
/*-----------------------------------------------------------------*/
int cln = 0;
lineHead = lineCurr = NULL;
-
-#if 0
- //REMOVE ME!!!
+ dptrn[1][0] = "dpl1";
+ dptrn[1][1] = "dph1";
+ dptrn[1][2] = "dpx1";
+
+ if (options.model == MODEL_FLAT24) {
+ fReturnSizeDS390 = 5;
+ fReturn = fReturn24;
+ } else {
+ fReturnSizeDS390 = 4;
+ fReturn = fReturn16;
+ options.stack10bit=0;
+ }
+#if 1
/* print the allocation information */
- if (allocInfo)
+ if (allocInfo && currFunc)
printAllocInfo (currFunc, codeOutFile);
#endif
/* if debug information required */
if (options.debug && currFunc)
{
- cdbSymbol (currFunc, cdbFile, FALSE, TRUE);
- _G.debugLine = 1;
- if (IS_STATIC (currFunc->etype))
- emitcode ("", "F%s$%s$0$0 ==.", moduleName, currFunc->name);
- else
- emitcode ("", "G$%s$0$0 ==.", currFunc->name);
- _G.debugLine = 0;
+ debugFile->writeFunction (currFunc, lic);
}
/* stack pointer name */
if (options.useXstack)
for (ic = lic; ic; ic = ic->next)
{
- if (cln != ic->lineno)
+ _G.current_iCode = ic;
+
+ if (ic->lineno && cln != ic->lineno)
{
if (options.debug)
{
- _G.debugLine = 1;
- emitcode ("", "C$%s$%d$%d$%d ==.",
- FileBaseName (ic->filename), ic->lineno,
- ic->level, ic->block);
- _G.debugLine = 0;
+ debugFile->writeCLine (ic);
}
- emitcode (";", "%s %d", ic->filename, ic->lineno);
+ if (!options.noCcodeInAsm) {
+ emitcode ("", ";\t%s:%d: %s", ic->filename, ic->lineno,
+ printCLine(ic->filename, ic->lineno));
+ }
cln = ic->lineno;
}
+ if (options.iCodeInAsm) {
+ emitcode("", ";ic:%d: %s", ic->key, printILine(ic));
+ }
/* if the result is marked as
spilt and rematerializable or code for
this has already been generated then
break;
case GET_VALUE_AT_ADDRESS:
- genPointerGet (ic);
+ genPointerGet (ic,hasInc(IC_LEFT(ic),ic, getSize(operandType(IC_RESULT(ic)))));
break;
case '=':
if (POINTER_SET (ic))
- genPointerSet (ic);
+ genPointerSet (ic,hasInc(IC_RESULT(ic),ic,getSize(operandType(IC_RIGHT(ic)))));
else
genAssign (ic);
break;
break;
case SEND:
- addSet (&_G.sendSet, ic);
+ if (ic->builtinSEND) genBuiltIn(ic);
+ else addSet (&_G.sendSet, ic);
break;
+ case DUMMY_READ_VOLATILE:
+ genDummyRead (ic);
+ break;
+
+ case CRITICAL:
+ genCritical (ic);
+ break;
+
+ case ENDCRITICAL:
+ genEndCritical (ic);
+ break;
+
+ case SWAP:
+ genSwap (ic);
+ break;
+
+#if 0 // obsolete, and buggy for != xdata
+ case ARRAYINIT:
+ genArrayInit(ic);
+ break;
+#endif
+
default:
ic = ic;
- /* piCode(ic,stdout); */
-
}
}
projects / fw / sdcc / blobdiff