#ifdef HAVE_SYS_ISA_DEFS_H
#include <sys/isa_defs.h>
#else
+#ifdef HAVE_MACHINE_ENDIAN_H
+#include <machine/endian.h>
+#else
#ifdef HAVE_ENDIAN_H
#include <endian.h>
#else
-#if !defined(__BORLANDC__) && !defined(_MSC_VER) && !defined(__MINGW32__)
+#if !defined(__BORLANDC__) && !defined(_MSC_VER) && !defined(__MINGW32__) && !defined(__CYGWIN__)
#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
+#endif
#include "common.h"
#include "SDCCpeeph.h"
#include "pcode.h"
#include "gen.h"
+
+#define BYTEofLONG(l,b) ( (l>> (b<<3)) & 0xff)
+void DEBUGpic14_AopType(int line_no, operand *left, operand *right, operand *result);
+
+const char *AopType(short type)
+{
+ switch(type) {
+ case AOP_LIT:
+ return "AOP_LIT";
+ break;
+ case AOP_REG:
+ return "AOP_REG";
+ break;
+ case AOP_DIR:
+ return "AOP_DIR";
+ break;
+ case AOP_DPTR:
+ return "AOP_DPTR";
+ break;
+ case AOP_DPTR2:
+ return "AOP_DPTR2";
+ break;
+ case AOP_R0:
+ return "AOP_R0";
+ break;
+ case AOP_R1:
+ return "AOP_R1";
+ break;
+ case AOP_STK:
+ return "AOP_STK";
+ break;
+ case AOP_IMMD:
+ return "AOP_IMMD";
+ break;
+ case AOP_STR:
+ return "AOP_STR";
+ break;
+ case AOP_CRY:
+ return "AOP_CRY";
+ break;
+ case AOP_ACC:
+ return "AOP_ACC";
+ break;
+ case AOP_PCODE:
+ return "AOP_PCODE";
+ break;
+ }
+
+ return "BAD TYPE";
+}
/*-----------------------------------------------------------------*/
/* genPlusIncr :- does addition with increment if possible */
/*-----------------------------------------------------------------*/
unsigned int size = pic14_getDataSize(IC_RESULT(ic));
DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- DEBUGpic14_emitcode ("; ","result %d, left %d, right %d",
- AOP_TYPE(IC_RESULT(ic)),
- AOP_TYPE(IC_LEFT(ic)),
- AOP_TYPE(IC_RIGHT(ic)));
+ DEBUGpic14_emitcode ("; ","result %s, left %s, right %s",
+ AopType(AOP_TYPE(IC_RESULT(ic))),
+ AopType(AOP_TYPE(IC_LEFT(ic))),
+ AopType(AOP_TYPE(IC_RIGHT(ic))));
/* will try to generate an increment */
/* if the right side is not a literal
int offset = MSB16;
- emitpcode(POC_INCF, popGet(AOP(IC_RESULT(ic)),LSB,FALSE,FALSE));
+ emitpcode(POC_INCF, popGet(AOP(IC_RESULT(ic)),LSB));
//pic14_emitcode("incf","%s,f",aopGet(AOP(IC_RESULT(ic)),LSB,FALSE,FALSE));
while(--size) {
emitSKPNZ;
- emitpcode(POC_INCF, popGet(AOP(IC_RESULT(ic)),offset++,FALSE,FALSE));
+ emitpcode(POC_INCF, popGet(AOP(IC_RESULT(ic)),offset++));
//pic14_emitcode(" incf","%s,f",aopGet(AOP(IC_RESULT(ic)),offset++,FALSE,FALSE));
}
if( strcmp(aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE),"a") &&
(AOP_TYPE(IC_RESULT(ic)) == AOP_CRY) ) {
- emitpcode(POC_BCF, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_BCF, popGet(AOP(IC_RESULT(ic)),0));
pic14_emitcode("bcf","(%s >> 3), (%s & 7)",
AOP(IC_RESULT(ic))->aopu.aop_dir,
AOP(IC_RESULT(ic))->aopu.aop_dir);
//pic14_emitcode("andlw","1");
emitSKPZ;
- emitpcode(POC_BSF, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_BSF, popGet(AOP(IC_RESULT(ic)),0));
pic14_emitcode("bsf","(%s >> 3), (%s & 7)",
AOP(IC_RESULT(ic))->aopu.aop_dir,
AOP(IC_RESULT(ic))->aopu.aop_dir);
if (pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
while (icount--)
- emitpcode(POC_INCF, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_INCF, popGet(AOP(IC_RESULT(ic)),0));
//pic14_emitcode("incf","%s,f",aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
return TRUE ;
}
- DEBUGpic14_emitcode ("; ","couldn't increment result-%s left-%s",
- aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE),
- aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
+ DEBUGpic14_emitcode ("; ","couldn't increment ");
+
return FALSE ;
}
void genPlusBits (iCode *ic)
{
- DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- /*
- The following block of code will add two bits.
- Note that it'll even work if the destination is
- the carry (C in the status register).
- It won't work if the 'Z' bit is a source or destination.
- */
+ DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- /* If the result is stored in the accumulator (w) */
- //if(strcmp(aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE),"a") == 0 ) {
- if(AOP_TYPE(IC_RESULT(ic)) != AOP_ACC) {
- //emitpcode( ( ((int) operandLitValue(right)) ? POC_BSF : POC_BCF),
- // popGet(AOP(result),0,FALSE,FALSE));
-
- emitpcode(POC_MOVLW, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
- emitpcode(POC_BCF, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
- emitpcode(POC_BTFSC, popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- emitpcode(POC_XORWF, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
- emitpcode(POC_BTFSC, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- emitpcode(POC_XORWF, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
-
- pic14_emitcode("movlw","(1 << (%s & 7))",
- AOP(IC_RESULT(ic))->aopu.aop_dir,
- AOP(IC_RESULT(ic))->aopu.aop_dir);
- pic14_emitcode("bcf","(%s >> 3), (%s & 7)",
- AOP(IC_RESULT(ic))->aopu.aop_dir,
- AOP(IC_RESULT(ic))->aopu.aop_dir);
- pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
- AOP(IC_RIGHT(ic))->aopu.aop_dir,
- AOP(IC_RIGHT(ic))->aopu.aop_dir);
- pic14_emitcode("xorwf","(%s >>3),f",
- AOP(IC_RESULT(ic))->aopu.aop_dir);
- pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
- AOP(IC_LEFT(ic))->aopu.aop_dir,
- AOP(IC_LEFT(ic))->aopu.aop_dir);
- pic14_emitcode("xorwf","(%s>>3),f",
- AOP(IC_RESULT(ic))->aopu.aop_dir);
- } else {
-
- emitpcode(POC_CLRW, NULL);
- emitpcode(POC_BTFSC, popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- emitpcode(POC_XORLW, popGetLit(1));
- emitpcode(POC_BTFSC, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- emitpcode(POC_XORLW, popGetLit(1));
-
- pic14_emitcode("clrw","");
- pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
- AOP(IC_RIGHT(ic))->aopu.aop_dir,
- AOP(IC_RIGHT(ic))->aopu.aop_dir);
- pic14_emitcode("xorlw","1");
- pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
- AOP(IC_LEFT(ic))->aopu.aop_dir,
- AOP(IC_LEFT(ic))->aopu.aop_dir);
- pic14_emitcode("xorlw","1");
- }
+ DEBUGpic14_emitcode ("; ","result %s, left %s, right %s",
+ AopType(AOP_TYPE(IC_RESULT(ic))),
+ AopType(AOP_TYPE(IC_LEFT(ic))),
+ AopType(AOP_TYPE(IC_RIGHT(ic))));
+ /*
+ The following block of code will add two bits.
+ Note that it'll even work if the destination is
+ the carry (C in the status register).
+ It won't work if the 'Z' bit is a source or destination.
+ */
+
+ /* If the result is stored in the accumulator (w) */
+ //if(strcmp(aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE),"a") == 0 ) {
+ switch(AOP_TYPE(IC_RESULT(ic))) {
+ case AOP_ACC:
+ emitpcode(POC_CLRW, NULL);
+ emitpcode(POC_BTFSC, popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_XORLW, popGetLit(1));
+ emitpcode(POC_BTFSC, popGet(AOP(IC_LEFT(ic)),0));
+ emitpcode(POC_XORLW, popGetLit(1));
+
+ pic14_emitcode("clrw","");
+ pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
+ AOP(IC_RIGHT(ic))->aopu.aop_dir,
+ AOP(IC_RIGHT(ic))->aopu.aop_dir);
+ pic14_emitcode("xorlw","1");
+ pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
+ AOP(IC_LEFT(ic))->aopu.aop_dir,
+ AOP(IC_LEFT(ic))->aopu.aop_dir);
+ pic14_emitcode("xorlw","1");
+ break;
+ case AOP_REG:
+ emitpcode(POC_MOVLW, popGetLit(0));
+ emitpcode(POC_BTFSC, popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_XORLW, popGetLit(1));
+ emitpcode(POC_BTFSC, popGet(AOP(IC_LEFT(ic)),0));
+ emitpcode(POC_XORLW, popGetLit(1));
+ emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),0));
+ break;
+ default:
+ emitpcode(POC_MOVLW, popGet(AOP(IC_RESULT(ic)),0));
+ emitpcode(POC_BCF, popGet(AOP(IC_RESULT(ic)),0));
+ emitpcode(POC_BTFSC, popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_XORWF, popGet(AOP(IC_RESULT(ic)),0));
+ emitpcode(POC_BTFSC, popGet(AOP(IC_LEFT(ic)),0));
+ emitpcode(POC_XORWF, popGet(AOP(IC_RESULT(ic)),0));
+
+ pic14_emitcode("movlw","(1 << (%s & 7))",
+ AOP(IC_RESULT(ic))->aopu.aop_dir,
+ AOP(IC_RESULT(ic))->aopu.aop_dir);
+ pic14_emitcode("bcf","(%s >> 3), (%s & 7)",
+ AOP(IC_RESULT(ic))->aopu.aop_dir,
+ AOP(IC_RESULT(ic))->aopu.aop_dir);
+ pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
+ AOP(IC_RIGHT(ic))->aopu.aop_dir,
+ AOP(IC_RIGHT(ic))->aopu.aop_dir);
+ pic14_emitcode("xorwf","(%s >>3),f",
+ AOP(IC_RESULT(ic))->aopu.aop_dir);
+ pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
+ AOP(IC_LEFT(ic))->aopu.aop_dir,
+ AOP(IC_LEFT(ic))->aopu.aop_dir);
+ pic14_emitcode("xorwf","(%s>>3),f",
+ AOP(IC_RESULT(ic))->aopu.aop_dir);
+ break;
+ }
}
#endif
/*-----------------------------------------------------------------*/
-/* genPlus - generates code for addition */
+/* genAddlit - generates code for addition */
/*-----------------------------------------------------------------*/
-void genPlus (iCode *ic)
+static void genAddLit2byte (operand *result, int offr, int lit)
{
- int size, offset = 0;
- /* special cases :- */
- DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ switch(lit & 0xff) {
+ case 0:
+ break;
+ case 1:
+ emitpcode(POC_INCF, popGet(AOP(result),offr));
+ break;
+ case 0xff:
+ emitpcode(POC_DECF, popGet(AOP(result),offr));
+ break;
+ default:
+ emitpcode(POC_MOVLW,popGetLit(lit&0xff));
+ emitpcode(POC_ADDWF,popGet(AOP(result),offr));
+ }
- aopOp (IC_LEFT(ic),ic,FALSE);
- aopOp (IC_RIGHT(ic),ic,FALSE);
- aopOp (IC_RESULT(ic),ic,TRUE);
-
- /* 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) {
- operand *t = IC_RIGHT(ic);
- IC_RIGHT(ic) = IC_LEFT(ic);
- IC_LEFT(ic) = t;
- }
-
- /* if both left & right are in bit space */
- if (AOP_TYPE(IC_LEFT(ic)) == AOP_CRY &&
- AOP_TYPE(IC_RIGHT(ic)) == AOP_CRY) {
- genPlusBits (ic);
- goto release ;
- }
-
- /* if left in bit space & right literal */
- if (AOP_TYPE(IC_LEFT(ic)) == AOP_CRY &&
- AOP_TYPE(IC_RIGHT(ic)) == AOP_LIT) {
- /* if result in bit space */
- if(AOP_TYPE(IC_RESULT(ic)) == AOP_CRY){
- if((unsigned long)floatFromVal(AOP(IC_RIGHT(ic))->aopu.aop_lit) != 0L) {
- emitpcode(POC_MOVLW, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
- if (!pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) )
- emitpcode(POC_BTFSC, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- emitpcode(POC_XORWF, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
- }
- } else {
- size = pic14_getDataSize(IC_RESULT(ic));
- while (size--) {
- MOVA(aopGet(AOP(IC_RIGHT(ic)),offset,FALSE,FALSE));
- pic14_emitcode("addc","a,#00 ;%d",__LINE__);
- aopPut(AOP(IC_RESULT(ic)),"a",offset++);
- }
- }
- goto release ;
- }
+}
+
+static void emitMOVWF(operand *reg, int offset)
+{
+ if(!reg)
+ return;
+
+ if (AOP_TYPE(reg) == AOP_ACC) {
+ DEBUGpic14_emitcode ("; ***","%s %d ignoring mov into W",__FUNCTION__,__LINE__);
+ return;
+ }
+
+ emitpcode(POC_MOVWF, popGet(AOP(reg),offset));
+
+}
+
+static void genAddLit (iCode *ic, int lit)
+{
+
+ int size,same;
+ int lo;
+
+ operand *result;
+ operand *left;
+
+ DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- /* if I can do an increment instead
- of add then GOOD for ME */
- if (genPlusIncr (ic) == TRUE)
- goto release;
- size = pic14_getDataSize(IC_RESULT(ic));
+ left = IC_LEFT(ic);
+ result = IC_RESULT(ic);
+ same = pic14_sameRegs(AOP(left), AOP(result));
+ size = pic14_getDataSize(result);
- if(AOP(IC_RIGHT(ic))->type == AOP_LIT) {
- /* Add a literal to something else */
- bool know_W=0;
- unsigned lit = (unsigned) floatFromVal(AOP(IC_RIGHT(ic))->aopu.aop_lit);
- unsigned l1=0;
+ if(same) {
- offset = 0;
- DEBUGpic14_emitcode(";","adding lit to something. size %d",size);
- while(size--){
+ /* Handle special cases first */
+ if(size == 1)
+ genAddLit2byte (result, 0, lit);
+
+ else if(size == 2) {
+ int hi = 0xff & (lit >> 8);
+ lo = lit & 0xff;
- DEBUGpic14_emitcode(";","size %d",size);
+ switch(hi) {
+ case 0:
- switch (lit & 0xff) {
+ /* lit = 0x00LL */
+ DEBUGpic14_emitcode ("; hi = 0","%s %d",__FUNCTION__,__LINE__);
+ switch(lo) {
case 0:
break;
case 1:
- if(pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))))
- emitpcode(POC_INCF, popGet(AOP(IC_LEFT(ic)),offset,FALSE,FALSE));
- else {
- know_W = 0;
- emitpcode(POC_INCFW, popGet(AOP(IC_LEFT(ic)),offset,FALSE,FALSE));
- if(AOP_TYPE(IC_RESULT(ic)) != AOP_ACC)
- emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),offset,FALSE,FALSE));
- }
+ emitpcode(POC_INCF, popGet(AOP(result),0));
+ emitSKPNZ;
+ emitpcode(POC_INCF, popGet(AOP(result),MSB16));
break;
case 0xff:
- if(pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))))
- emitpcode(POC_DECF, popGet(AOP(IC_LEFT(ic)),offset,FALSE,FALSE));
- else {
- know_W = 0;
- emitpcode(POC_DECFW, popGet(AOP(IC_LEFT(ic)),offset,FALSE,FALSE));
- if(AOP_TYPE(IC_RESULT(ic)) != AOP_ACC)
- emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),offset,FALSE,FALSE));
- }
+ emitpcode(POC_DECF, popGet(AOP(result),0));
+ emitpcode(POC_INCFSZW, popGet(AOP(result),0));
+ emitpcode(POC_INCF, popGet(AOP(result),MSB16));
+
break;
default:
- if( !know_W || ( (lit&0xff) != l1) ) {
- know_W = 1;
- emitpcode(POC_MOVLW,popGetLit(lit&0xff));
- }
- if(pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))))
- emitpcode(POC_ADDWF, popGet(AOP(IC_LEFT(ic)),offset,FALSE,FALSE));
- else {
- know_W = 0;
- emitpcode(POC_ADDFW, popGet(AOP(IC_LEFT(ic)),offset,FALSE,FALSE));
- emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),offset,FALSE,FALSE));
- if(size) {
+ emitpcode(POC_MOVLW,popGetLit(lit&0xff));
+ emitpcode(POC_ADDWF,popGet(AOP(result),0));
+ emitSKPNC;
+ emitpcode(POC_INCF, popGet(AOP(result),MSB16));
+
+
+ }
+ break;
+
+ case 1:
+ /* lit = 0x01LL */
+ DEBUGpic14_emitcode ("; hi = 1","%s %d",__FUNCTION__,__LINE__);
+ switch(lo) {
+ case 0: /* 0x0100 */
+ emitpcode(POC_INCF, popGet(AOP(result),MSB16));
+ break;
+ case 1: /* 0x0101 */
+ emitpcode(POC_INCF, popGet(AOP(result),MSB16));
+ emitpcode(POC_INCF, popGet(AOP(result),0));
+ emitSKPNZ;
+ emitpcode(POC_INCF, popGet(AOP(result),MSB16));
+ break;
+ case 0xff: /* 0x01ff */
+ emitpcode(POC_DECF, popGet(AOP(result),0));
+ emitpcode(POC_INCFSZW, popGet(AOP(result),0));
+ emitpcode(POC_INCF, popGet(AOP(result),MSB16));
+ emitpcode(POC_INCF, popGet(AOP(result),MSB16));
+ }
+ break;
+
+ case 0xff:
+ DEBUGpic14_emitcode ("; hi = ff","%s %d",__FUNCTION__,__LINE__);
+ /* lit = 0xffLL */
+ switch(lo) {
+ case 0: /* 0xff00 */
+ emitpcode(POC_DECF, popGet(AOP(result),MSB16));
+ break;
+ case 1: /*0xff01 */
+ emitpcode(POC_INCFSZ, popGet(AOP(result),0));
+ emitpcode(POC_DECF, popGet(AOP(result),MSB16));
+ break;
+/* case 0xff: * 0xffff *
+ emitpcode(POC_INCFSZW, popGet(AOP(result),0,FALSE,FALSE));
+ emitpcode(POC_INCF, popGet(AOP(result),MSB16,FALSE,FALSE));
+ emitpcode(POC_DECF, popGet(AOP(result),0,FALSE,FALSE));
+ break;
+*/
+ default:
+ emitpcode(POC_MOVLW,popGetLit(lo));
+ emitpcode(POC_ADDWF,popGet(AOP(result),0));
+ emitSKPC;
+ emitpcode(POC_DECF, popGet(AOP(result),MSB16));
+
+ }
+
+ break;
+
+ default:
+ DEBUGpic14_emitcode ("; hi is generic","%d %s %d",hi,__FUNCTION__,__LINE__);
+
+ /* lit = 0xHHLL */
+ switch(lo) {
+ case 0: /* 0xHH00 */
+ genAddLit2byte (result, MSB16, hi);
+ break;
+ case 1: /* 0xHH01 */
+ emitpcode(POC_MOVLW,popGetLit((hi+1)&0xff));
+ emitpcode(POC_INCFSZ, popGet(AOP(result),0));
+ emitpcode(POC_MOVLW,popGetLit(hi));
+ emitpcode(POC_ADDWF,popGet(AOP(result),MSB16));
+ break;
+/* case 0xff: * 0xHHff *
+ emitpcode(POC_MOVFW, popGet(AOP(result),0,FALSE,FALSE));
+ emitpcode(POC_DECF, popGet(AOP(result),MSB16,FALSE,FALSE));
+ emitpcode(POC_MOVLW,popGetLit(hi));
+ emitpcode(POC_ADDWF,popGet(AOP(result),MSB16,FALSE,FALSE));
+ break;
+*/ default: /* 0xHHLL */
+ emitpcode(POC_MOVLW,popGetLit(lo));
+ emitpcode(POC_ADDWF, popGet(AOP(result),0));
+ emitpcode(POC_MOVLW,popGetLit(hi));
+ emitSKPNC;
+ emitpcode(POC_MOVLW,popGetLit((hi+1) & 0xff));
+ emitpcode(POC_ADDWF,popGet(AOP(result),MSB16));
+ break;
+ }
+
+ }
+ } else {
+ int carry_info = 0;
+ int offset = 0;
+ /* size > 2 */
+ DEBUGpic14_emitcode ("; add lit to long","%s %d",__FUNCTION__,__LINE__);
+
+ while(size--) {
+ lo = BYTEofLONG(lit,0);
+
+ if(carry_info) {
+ switch(lo) {
+ case 0:
+ switch(carry_info) {
+ case 1:
+ emitSKPNZ;
+ emitpcode(POC_INCF, popGet(AOP(result),offset));
+ break;
+ case 2:
+ emitpcode(POC_RLFW, popGet(AOP(result),offset));
+ emitpcode(POC_ANDLW,popGetLit(1));
+ emitpcode(POC_ADDWF, popGet(AOP(result),offset));
+ break;
+ default: /* carry_info = 3 */
emitSKPNC;
- emitpcode(POC_INCF, popGet(AOP(IC_LEFT(ic)),offset+1,FALSE,FALSE));
+ emitpcode(POC_INCF, popGet(AOP(result),offset));
+ carry_info = 1;
+ break;
}
+ break;
+ case 0xff:
+ emitpcode(POC_MOVLW,popGetLit(lo));
+ if(carry_info==1)
+ emitSKPZ;
+ else
+ emitSKPC;
+ emitpcode(POC_ADDWF, popGet(AOP(result),offset));
+ break;
+ default:
+ emitpcode(POC_MOVLW,popGetLit(lo));
+ if(carry_info==1)
+ emitSKPNZ;
+ else
+ emitSKPNC;
+ emitpcode(POC_MOVLW,popGetLit(lo+1));
+ emitpcode(POC_ADDWF, popGet(AOP(result),offset));
+ carry_info=2;
+ break;
+ }
+ }else {
+ /* no carry info from previous step */
+ /* this means this is the first time to add */
+ switch(lo) {
+ case 0:
+ break;
+ case 1:
+ emitpcode(POC_INCF, popGet(AOP(result),offset));
+ carry_info=1;
+ break;
+ default:
+ emitpcode(POC_MOVLW,popGetLit(lo));
+ emitpcode(POC_ADDWF, popGet(AOP(result),offset));
+ if(lit <0x100)
+ carry_info = 3; /* Were adding only one byte and propogating the carry */
+ else
+ carry_info = 2;
+ break;
}
}
-
- l1 = lit & 0xff;
- lit >>= 8;
offset++;
+ lit >>= 8;
}
+
+/*
+ lo = BYTEofLONG(lit,0);
- } else if(AOP_TYPE(IC_RIGHT(ic)) == AOP_CRY) {
+ if(lit < 0x100) {
+ if(lo) {
+ if(lo == 1) {
+ emitpcode(POC_INCF, popGet(AOP(result),0,FALSE,FALSE));
+ emitSKPNZ;
+ } else {
+ emitpcode(POC_MOVLW,popGetLit(lo));
+ emitpcode(POC_ADDWF, popGet(AOP(result),0,FALSE,FALSE));
+ emitSKPNC;
+ }
+ emitpcode(POC_INCF, popGet(AOP(result),1,FALSE,FALSE));
+ emitSKPNZ;
+ emitpcode(POC_INCF, popGet(AOP(result),2,FALSE,FALSE));
+ emitSKPNZ;
+ emitpcode(POC_INCF, popGet(AOP(result),3,FALSE,FALSE));
+
+ }
+ }
+ }
- pic14_emitcode(";bitadd","right is bit: %s",aopGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- pic14_emitcode(";bitadd","left is bit: %s",aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- pic14_emitcode(";bitadd","result is bit: %s",aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+*/
+ }
+ } else {
+ int offset = 1;
+ DEBUGpic14_emitcode ("; left and result aren't same","%s %d",__FUNCTION__,__LINE__);
- /* here we are adding a bit to a char or int */
- if(size == 1) {
- if (pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
+ if(size == 1) {
+
+ if(AOP_TYPE(left) == AOP_ACC) {
+ /* left addend is already in accumulator */
+ switch(lit & 0xff) {
+ case 0:
+ //emitpcode(POC_MOVWF, popGet(AOP(result),0,FALSE,FALSE));
+ emitMOVWF(result,0);
+ break;
+ default:
+ emitpcode(POC_ADDLW, popGetLit(lit & 0xff));
+ //emitpcode(POC_MOVWF, popGet(AOP(result),0,FALSE,FALSE));
+ emitMOVWF(result,0);
+ }
+ } else {
+ /* left addend is in a register */
+ switch(lit & 0xff) {
+ case 0:
+ emitpcode(POC_MOVFW, popGet(AOP(left),0));
+ emitMOVWF(result, 0);
+ //emitpcode(POC_MOVWF, popGet(AOP(result),0,FALSE,FALSE));
+ emitMOVWF(result,0);
+ break;
+ case 1:
+ emitpcode(POC_INCFW, popGet(AOP(left),0));
+ //emitpcode(POC_MOVWF, popGet(AOP(result),0,FALSE,FALSE));
+ emitMOVWF(result,0);
+ break;
+ case 0xff:
+ emitpcode(POC_DECFW, popGet(AOP(left),0));
+ //emitpcode(POC_MOVWF, popGet(AOP(result),0,FALSE,FALSE));
+ emitMOVWF(result,0);
+ break;
+ default:
+ emitpcode(POC_MOVLW, popGetLit(lit & 0xff));
+ emitpcode(POC_ADDFW, popGet(AOP(left),0));
+ //emitpcode(POC_MOVWF, popGet(AOP(result),0,FALSE,FALSE));
+ emitMOVWF(result,0);
+ }
+ }
- emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- emitpcode(POC_INCF , popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ } else {
- pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
- AOP(IC_RIGHT(ic))->aopu.aop_dir,
- AOP(IC_RIGHT(ic))->aopu.aop_dir);
- pic14_emitcode(" incf","%s,f", aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ /* left is not the accumulator */
+ if(lit & 0xff) {
+ emitpcode(POC_MOVLW, popGetLit(lit & 0xff));
+ emitpcode(POC_ADDFW, popGet(AOP(left),0));
+ } else
+ emitpcode(POC_MOVFW, popGet(AOP(left),0));
+
+ //emitpcode(POC_MOVWF, popGet(AOP(result),0,FALSE,FALSE));
+ emitMOVWF(result,0);
+ lit >>= 8;
+ while(--size) {
+
+ if(lit & 0xff) {
+ emitpcode(POC_MOVLW, popGetLit(lit & 0xff));
+ //emitpcode(POC_MOVWF, popGet(AOP(result),offset,FALSE,FALSE));
+ emitMOVWF(result,offset);
+ emitpcode(POC_MOVFW, popGet(AOP(left),offset));
+ emitSKPNC;
+ emitpcode(POC_INCFSZW,popGet(AOP(left),offset));
+ emitpcode(POC_ADDWF, popGet(AOP(result),offset));
} else {
+ emitpcode(POC_CLRF, popGet(AOP(result),offset));
+ emitpcode(POC_RLF, popGet(AOP(result),offset));
+ emitpcode(POC_MOVFW, popGet(AOP(left),offset));
+ emitpcode(POC_ADDWF, popGet(AOP(result),offset));
+ }
+ offset++;
+ }
+ }
+ }
+}
- if(AOP_TYPE(IC_LEFT(ic)) == AOP_ACC) {
- emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- emitpcode(POC_XORLW , popGetLit(1));
+/*-----------------------------------------------------------------*/
+/* genPlus - generates code for addition */
+/*-----------------------------------------------------------------*/
+void genPlus (iCode *ic)
+{
+ int size, offset = 0;
- pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
- AOP(IC_RIGHT(ic))->aopu.aop_dir,
- AOP(IC_RIGHT(ic))->aopu.aop_dir);
- pic14_emitcode(" xorlw","1");
- } else {
- emitpcode(POC_MOVFW , popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- emitpcode(POC_INCFW , popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
-
- pic14_emitcode("movf","%s,w", aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
- AOP(IC_RIGHT(ic))->aopu.aop_dir,
- AOP(IC_RIGHT(ic))->aopu.aop_dir);
- pic14_emitcode(" incf","%s,w", aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- }
-
- if(AOP_TYPE(IC_RESULT(ic)) != AOP_ACC) {
-
- if(AOP_TYPE(IC_RESULT(ic)) == AOP_CRY) {
- emitpcode(POC_ANDLW , popGetLit(1));
- emitpcode(POC_BCF , popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
- emitSKPZ;
- emitpcode(POC_BSF , popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
- } else {
- emitpcode(POC_MOVWF , popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
- pic14_emitcode("movwf","%s", aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
- }
- }
- }
+ /* special cases :- */
+ DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- } else {
- int offset = 1;
+ aopOp (IC_LEFT(ic),ic,FALSE);
+ aopOp (IC_RIGHT(ic),ic,FALSE);
+ aopOp (IC_RESULT(ic),ic,TRUE);
- if (pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
- emitCLRZ;
- emitpcode(POC_BTFSC, popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- emitpcode(POC_INCF, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ DEBUGpic14_AopType(__LINE__,IC_LEFT(ic),IC_RIGHT(ic),IC_RESULT(ic));
- pic14_emitcode("clrz","");
+ /* if literal, literal on the right or
+ if left requires ACC or right is already
+ in ACC */
- pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
- AOP(IC_RIGHT(ic))->aopu.aop_dir,
- AOP(IC_RIGHT(ic))->aopu.aop_dir);
- pic14_emitcode(" incf","%s,f", aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ if (AOP_TYPE(IC_LEFT(ic)) == AOP_LIT) {
+ operand *t = IC_RIGHT(ic);
+ IC_RIGHT(ic) = IC_LEFT(ic);
+ IC_LEFT(ic) = t;
+ }
- } else {
+ /* if both left & right are in bit space */
+ if (AOP_TYPE(IC_LEFT(ic)) == AOP_CRY &&
+ AOP_TYPE(IC_RIGHT(ic)) == AOP_CRY) {
+ genPlusBits (ic);
+ goto release ;
+ }
- emitpcode(POC_MOVFW, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- emitpcode(POC_BTFSC, popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- emitpcode(POC_INCFW, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- emitpcode(POC_MOVWF, popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
+ /* if left in bit space & right literal */
+ if (AOP_TYPE(IC_LEFT(ic)) == AOP_CRY &&
+ AOP_TYPE(IC_RIGHT(ic)) == AOP_LIT) {
+ /* if result in bit space */
+ if(AOP_TYPE(IC_RESULT(ic)) == AOP_CRY){
+ if((unsigned long)floatFromVal(AOP(IC_RIGHT(ic))->aopu.aop_lit) != 0L) {
+ emitpcode(POC_MOVLW, popGet(AOP(IC_RESULT(ic)),0));
+ if (!pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) )
+ emitpcode(POC_BTFSC, popGet(AOP(IC_LEFT(ic)),0));
+ emitpcode(POC_XORWF, popGet(AOP(IC_RESULT(ic)),0));
+ }
+ } else {
+ size = pic14_getDataSize(IC_RESULT(ic));
+ while (size--) {
+ MOVA(aopGet(AOP(IC_RIGHT(ic)),offset,FALSE,FALSE));
+ pic14_emitcode("addc","a,#00 ;%d",__LINE__);
+ aopPut(AOP(IC_RESULT(ic)),"a",offset++);
+ }
+ }
+ goto release ;
+ }
+
+ /* if I can do an increment instead
+ of add then GOOD for ME */
+ if (genPlusIncr (ic) == TRUE)
+ goto release;
+
+ size = pic14_getDataSize(IC_RESULT(ic));
+
+ if(AOP(IC_RIGHT(ic))->type == AOP_LIT) {
+ /* Add a literal to something else */
+ //bool know_W=0;
+ unsigned lit = (unsigned) floatFromVal(AOP(IC_RIGHT(ic))->aopu.aop_lit);
+ // unsigned l1=0;
+
+ // offset = 0;
+ DEBUGpic14_emitcode(";","adding lit to something. size %d",size);
+
+ genAddLit (ic, lit);
+ goto release;
+
+ } else if(AOP_TYPE(IC_RIGHT(ic)) == AOP_CRY) {
+
+ pic14_emitcode(";bitadd","right is bit: %s",aopGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
+ pic14_emitcode(";bitadd","left is bit: %s",aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
+ pic14_emitcode(";bitadd","result is bit: %s",aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+
+ /* here we are adding a bit to a char or int */
+ if(size == 1) {
+ if (pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
+
+ emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_INCF , popGet(AOP(IC_RESULT(ic)),0));
+
+ pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
+ AOP(IC_RIGHT(ic))->aopu.aop_dir,
+ AOP(IC_RIGHT(ic))->aopu.aop_dir);
+ pic14_emitcode(" incf","%s,f", aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ } else {
+ if(AOP_TYPE(IC_LEFT(ic)) == AOP_ACC) {
+ emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_XORLW , popGetLit(1));
+
+ pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
+ AOP(IC_RIGHT(ic))->aopu.aop_dir,
+ AOP(IC_RIGHT(ic))->aopu.aop_dir);
+ pic14_emitcode(" xorlw","1");
+ } else {
+ emitpcode(POC_MOVFW , popGet(AOP(IC_LEFT(ic)),0));
+ emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_INCFW , popGet(AOP(IC_LEFT(ic)),0));
pic14_emitcode("movf","%s,w", aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
- AOP(IC_RIGHT(ic))->aopu.aop_dir,
- AOP(IC_RIGHT(ic))->aopu.aop_dir);
+ AOP(IC_RIGHT(ic))->aopu.aop_dir,
+ AOP(IC_RIGHT(ic))->aopu.aop_dir);
pic14_emitcode(" incf","%s,w", aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- pic14_emitcode("movwf","%s", aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
-
}
-
- while(--size){
- emitSKPZ;
- emitpcode(POC_INCF, popGet(AOP(IC_RESULT(ic)),offset++,FALSE,FALSE));
- //pic14_emitcode(" incf","%s,f", aopGet(AOP(IC_RIGHT(ic)),offset++,FALSE,FALSE));
+
+ if(AOP_TYPE(IC_RESULT(ic)) != AOP_ACC) {
+
+ if(AOP_TYPE(IC_RESULT(ic)) == AOP_CRY) {
+ emitpcode(POC_ANDLW , popGetLit(1));
+ emitpcode(POC_BCF , popGet(AOP(IC_RESULT(ic)),0));
+ emitSKPZ;
+ emitpcode(POC_BSF , popGet(AOP(IC_RESULT(ic)),0));
+ } else {
+ emitpcode(POC_MOVWF , popGet(AOP(IC_RESULT(ic)),0));
+ pic14_emitcode("movwf","%s", aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ }
}
+ }
+
+ } else {
+ int offset = 1;
+ DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ if (pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
+ emitCLRZ;
+ emitpcode(POC_BTFSC, popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_INCF, popGet(AOP(IC_RESULT(ic)),0));
+
+ pic14_emitcode("clrz","");
+
+ pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
+ AOP(IC_RIGHT(ic))->aopu.aop_dir,
+ AOP(IC_RIGHT(ic))->aopu.aop_dir);
+ pic14_emitcode(" incf","%s,f", aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ } else {
+
+ emitpcode(POC_MOVFW, popGet(AOP(IC_LEFT(ic)),0));
+ emitpcode(POC_BTFSC, popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_INCFW, popGet(AOP(IC_LEFT(ic)),0));
+ //emitpcode(POC_MOVWF, popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
+ emitMOVWF(IC_RIGHT(ic),0);
+
+ pic14_emitcode("movf","%s,w", aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
+ pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
+ AOP(IC_RIGHT(ic))->aopu.aop_dir,
+ AOP(IC_RIGHT(ic))->aopu.aop_dir);
+ pic14_emitcode(" incf","%s,w", aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
+ pic14_emitcode("movwf","%s", aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+
+ }
+
+ while(--size){
+ emitSKPZ;
+ emitpcode(POC_INCF, popGet(AOP(IC_RESULT(ic)),offset++));
+ //pic14_emitcode(" incf","%s,f", aopGet(AOP(IC_RIGHT(ic)),offset++,FALSE,FALSE));
}
+
+ }
+ } else {
+ DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+
+ /* Add the first bytes */
+
+ if(strcmp(aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE),"a") == 0 ) {
+ emitpcode(POC_ADDFW, popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0));
} else {
-
- if(strcmp(aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE),"a") == 0 ) {
- emitpcode(POC_ADDFW, popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+
+ if ( AOP_TYPE(IC_LEFT(ic)) == AOP_ACC) {
+ emitpcode(POC_ADDFW, popGet(AOP(IC_RIGHT(ic)),0));
+ if ( AOP_TYPE(IC_RESULT(ic)) != AOP_ACC)
+ emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0));
} else {
- if ( AOP_TYPE(IC_LEFT(ic)) == AOP_ACC) {
- emitpcode(POC_ADDFW, popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- if ( AOP_TYPE(IC_RESULT(ic)) != AOP_ACC)
- emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
- } else {
+ emitpcode(POC_MOVFW,popGet(AOP(IC_RIGHT(ic)),0));
- emitpcode(POC_MOVFW,popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
-
- if (pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) )
- emitpcode(POC_ADDWF, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- else {
- if( (AOP_TYPE(IC_LEFT(ic)) == AOP_IMMD) ||
- (AOP_TYPE(IC_LEFT(ic)) == AOP_LIT) ) {
- emitpcode(POC_ADDLW, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- } else {
- emitpcode(POC_ADDFW, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- if ( AOP_TYPE(IC_RESULT(ic)) != AOP_ACC)
- emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
- }
- }
+ if (pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) )
+ emitpcode(POC_ADDWF, popGet(AOP(IC_LEFT(ic)),0));
+ else {
+ PIC_OPCODE poc = POC_ADDFW;
+
+ if ((AOP_TYPE(IC_LEFT(ic)) == AOP_PCODE) && AOP(IC_LEFT(ic))->aopu.pcop->type == PO_LITERAL)
+ poc = POC_ADDLW;
+ emitpcode(poc, popGet(AOP(IC_LEFT(ic)),0));
+ if ( AOP_TYPE(IC_RESULT(ic)) != AOP_ACC)
+ emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0));
}
}
+ }
- offset = 1;
- size--;
+ size = min( AOP_SIZE(IC_RESULT(ic)), AOP_SIZE(IC_RIGHT(ic))) - 1;
+ offset = 1;
- while(size--){
- if (!pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
- emitpcode(POC_MOVFW, popGet(AOP(IC_LEFT(ic)),offset,FALSE,FALSE));
- emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),offset,FALSE,FALSE));
- pic14_emitcode("movf","%s,w", aopGet(AOP(IC_LEFT(ic)),offset,FALSE,FALSE));
- pic14_emitcode("movwf","%s", aopGet(AOP(IC_RESULT(ic)),offset,FALSE,FALSE));
- }
+ while(size--){
+ if (!pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
+ emitpcode(POC_MOVFW, popGet(AOP(IC_LEFT(ic)),offset));
+ emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),offset));
- emitpcode(POC_MOVFW, popGet(AOP(IC_RIGHT(ic)),offset,FALSE,FALSE));
- emitSKPNC;
- emitpcode(POC_INCFSZW, popGet(AOP(IC_RIGHT(ic)),offset,FALSE,FALSE));
- emitpcode(POC_ADDWF, popGet(AOP(IC_RESULT(ic)),offset,FALSE,FALSE));
+ pic14_emitcode("movf","%s,w", aopGet(AOP(IC_LEFT(ic)),offset,FALSE,FALSE));
+ pic14_emitcode("movwf","%s", aopGet(AOP(IC_RESULT(ic)),offset,FALSE,FALSE));
+ }
+
+ emitpcode(POC_MOVFW, popGet(AOP(IC_RIGHT(ic)),offset));
+ emitSKPNC;
+ emitpcode(POC_INCFSZW, popGet(AOP(IC_RIGHT(ic)),offset));
+ emitpcode(POC_ADDWF, popGet(AOP(IC_RESULT(ic)),offset));
- /*
+ /*
pic14_emitcode("movf","%s,w", aopGet(AOP(IC_RIGHT(ic)),offset,FALSE,FALSE));
emitSKPNC;
pic14_emitcode("incfsz","%s,w",aopGet(AOP(IC_RIGHT(ic)),offset,FALSE,FALSE));
pic14_emitcode("addwf","%s,f", aopGet(AOP(IC_RESULT(ic)),offset,FALSE,FALSE));
- */
+ */
- offset++;
+ offset++;
+ }
+
+ }
+
+ if (AOP_SIZE(IC_RESULT(ic)) > AOP_SIZE(IC_RIGHT(ic))) {
+ int sign = !(SPEC_USIGN(getSpec(operandType(IC_LEFT(ic)))) |
+ SPEC_USIGN(getSpec(operandType(IC_RIGHT(ic)))) );
+
+
+ /* Need to extend result to higher bytes */
+ size = AOP_SIZE(IC_RESULT(ic)) - AOP_SIZE(IC_RIGHT(ic)) - 1;
+
+ /* First grab the carry from the lower bytes */
+ emitpcode(POC_CLRF, popGet(AOP(IC_RESULT(ic)),offset));
+ emitpcode(POC_RLF, popGet(AOP(IC_RESULT(ic)),offset));
+
+
+ if(sign) {
+ /* Now this is really horrid. Gotta check the sign of the addends and propogate
+ * to the result */
+
+ emitpcode(POC_BTFSC, newpCodeOpBit(aopGet(AOP(IC_LEFT(ic)),offset-1,FALSE,FALSE),7,0));
+ emitpcode(POC_DECF, popGet(AOP(IC_RESULT(ic)),offset));
+ emitpcode(POC_BTFSC, newpCodeOpBit(aopGet(AOP(IC_RIGHT(ic)),offset-1,FALSE,FALSE),7,0));
+ emitpcode(POC_DECF, popGet(AOP(IC_RESULT(ic)),offset));
+
+ /* if chars or ints or being signed extended to longs: */
+ if(size) {
+ emitpcode(POC_MOVLW, popGetLit(0));
+ emitpcode(POC_BTFSC, newpCodeOpBit(aopGet(AOP(IC_RESULT(ic)),offset,FALSE,FALSE),7,0));
+ emitpcode(POC_MOVLW, popGetLit(0xff));
}
+ }
+
+ offset++;
+ while(size--) {
+
+ if(sign)
+ emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),offset));
+ else
+ emitpcode(POC_CLRF, popGet(AOP(IC_RESULT(ic)),offset));
+ offset++;
}
+ }
- //adjustArithmeticResult(ic);
+
+ //adjustArithmeticResult(ic);
release:
- freeAsmop(IC_LEFT(ic),NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
- freeAsmop(IC_RIGHT(ic),NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
- freeAsmop(IC_RESULT(ic),NULL,ic,TRUE);
+ freeAsmop(IC_LEFT(ic),NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
+ freeAsmop(IC_RIGHT(ic),NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
+ freeAsmop(IC_RESULT(ic),NULL,ic,TRUE);
}
/*-----------------------------------------------------------------*/
(icount == 1)) {
if(size == 2) {
- emitpcode(POC_DECF, popGet(AOP(IC_RESULT(ic)),LSB,FALSE,FALSE));
- emitpcode(POC_INCFSZW, popGet(AOP(IC_RESULT(ic)),LSB,FALSE,FALSE));
- emitpcode(POC_DECF, popGet(AOP(IC_RESULT(ic)),MSB16,FALSE,FALSE));
+ emitpcode(POC_DECF, popGet(AOP(IC_RESULT(ic)),LSB));
+ emitpcode(POC_INCFSZW, popGet(AOP(IC_RESULT(ic)),LSB));
+ emitpcode(POC_INCF, popGet(AOP(IC_RESULT(ic)),MSB16));
+ emitpcode(POC_DECF, popGet(AOP(IC_RESULT(ic)),MSB16));
pic14_emitcode("decf","%s,f",aopGet(AOP(IC_RESULT(ic)),LSB,FALSE,FALSE));
pic14_emitcode("incfsz","%s,w",aopGet(AOP(IC_RESULT(ic)),LSB,FALSE,FALSE));
} else {
/* size is 3 or 4 */
emitpcode(POC_MOVLW, popGetLit(0xff));
- emitpcode(POC_ADDWF, popGet(AOP(IC_RESULT(ic)),LSB,FALSE,FALSE));
+ emitpcode(POC_ADDWF, popGet(AOP(IC_RESULT(ic)),LSB));
emitSKPNC;
- emitpcode(POC_ADDWF, popGet(AOP(IC_RESULT(ic)),MSB16,FALSE,FALSE));
+ emitpcode(POC_ADDWF, popGet(AOP(IC_RESULT(ic)),MSB16));
emitSKPNC;
- emitpcode(POC_ADDWF, popGet(AOP(IC_RESULT(ic)),MSB24,FALSE,FALSE));
+ emitpcode(POC_ADDWF, popGet(AOP(IC_RESULT(ic)),MSB24));
pic14_emitcode("movlw","0xff");
pic14_emitcode("addwf","%s,f",aopGet(AOP(IC_RESULT(ic)),LSB,FALSE,FALSE));
if(size > 3) {
emitSKPNC;
- emitpcode(POC_ADDWF, popGet(AOP(IC_RESULT(ic)),MSB32,FALSE,FALSE));
+ emitpcode(POC_ADDWF, popGet(AOP(IC_RESULT(ic)),MSB32));
pic14_emitcode("skpnc","");
emitSKPNC;
if (pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic)))) {
while (icount--)
- emitpcode(POC_DECF, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_DECF, popGet(AOP(IC_RESULT(ic)),0));
//pic14_emitcode ("decf","%s,f",aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
pic14_emitcode("decf","%s,w",aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
pic14_emitcode("movwf","%s",aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
- emitpcode(POC_DECFW, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_DECFW, popGet(AOP(IC_LEFT(ic)),0));
+ emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),0));
return TRUE;
}
}
/*-----------------------------------------------------------------*/
-/* addSign - complete with sign */
+/* addSign - propogate sign bit to higher bytes */
/*-----------------------------------------------------------------*/
void addSign(operand *result, int offset, int sign)
{
- int size = (pic14_getDataSize(result) - offset);
- DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- if(size > 0){
- if(sign){
- pic14_emitcode("rlc","a");
- pic14_emitcode("subb","a,acc");
- while(size--)
- aopPut(AOP(result),"a",offset++);
- } else
- while(size--)
- aopPut(AOP(result),"#0",offset++);
- }
+ int size = (pic14_getDataSize(result) - offset);
+ DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+
+ if(size > 0){
+ if(sign && offset) {
+
+ if(size == 1) {
+ emitpcode(POC_CLRF,popGet(AOP(result),offset));
+ emitpcode(POC_BTFSC,newpCodeOpBit(aopGet(AOP(result),offset-1,FALSE,FALSE),7,0));
+ emitpcode(POC_DECF, popGet(AOP(result),offset));
+ } else {
+
+ emitpcode(POC_MOVLW, popGetLit(0));
+ emitpcode(POC_BTFSC, newpCodeOpBit(aopGet(AOP(result),offset-1,FALSE,FALSE),7,0));
+ emitpcode(POC_MOVLW, popGetLit(0xff));
+ while(size--)
+ emitpcode(POC_MOVWF, popGet(AOP(result),size));
+
+ }
+ } else
+ while(size--)
+ emitpcode(POC_CLRF,popGet(AOP(result),offset++));
+ }
}
/*-----------------------------------------------------------------*/
/*-----------------------------------------------------------------*/
void genMinus (iCode *ic)
{
- int size, offset = 0;
+ int size, offset = 0, same=0;
unsigned long lit = 0L;
DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
IC_LEFT(ic) = t;
}
+ DEBUGpic14_emitcode ("; ","result %s, left %s, right %s",
+ AopType(AOP_TYPE(IC_RESULT(ic))),
+ AopType(AOP_TYPE(IC_LEFT(ic))),
+ AopType(AOP_TYPE(IC_RIGHT(ic))));
+
/* special cases :- */
/* if both left & right are in bit space */
if (AOP_TYPE(IC_LEFT(ic)) == AOP_CRY &&
/* if I can do an decrement instead
of subtract then GOOD for ME */
- if (genMinusDec (ic) == TRUE)
- goto release;
+ // if (genMinusDec (ic) == TRUE)
+ // goto release;
size = pic14_getDataSize(IC_RESULT(ic));
+ same = pic14_sameRegs(AOP(IC_RIGHT(ic)), AOP(IC_RESULT(ic)));
if(AOP(IC_RIGHT(ic))->type == AOP_LIT) {
/* Add a literal to something else */
lit = (unsigned long)floatFromVal(AOP(IC_RIGHT(ic))->aopu.aop_lit);
lit = - (long)lit;
+ genAddLit ( ic, lit);
+
+#if 0
/* add the first byte: */
pic14_emitcode("movlw","0x%x", lit & 0xff);
pic14_emitcode("addwf","%s,f", aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
emitpcode(POC_MOVLW, popGetLit(lit & 0xff));
- emitpcode(POC_ADDWF, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_ADDWF, popGet(AOP(IC_LEFT(ic)),0));
offset = 1;
if((lit & 0xff) == 0xff) {
emitpcode(POC_MOVLW, popGetLit(0xff));
emitSKPC;
- emitpcode(POC_ADDWF, popGet(AOP(IC_LEFT(ic)),offset,FALSE,FALSE));
+ emitpcode(POC_ADDWF, popGet(AOP(IC_LEFT(ic)),offset));
} else {
emitpcode(POC_MOVLW, popGetLit(lit & 0xff));
emitSKPNC;
emitpcode(POC_MOVLW, popGetLit((lit+1) & 0xff));
- emitpcode(POC_ADDWF, popGet(AOP(IC_LEFT(ic)),offset,FALSE,FALSE));
+ emitpcode(POC_ADDWF, popGet(AOP(IC_LEFT(ic)),offset));
}
} else {
/* do the rlf known zero trick here */
emitpcode(POC_MOVLW, popGetLit(1));
emitSKPNC;
- emitpcode(POC_ADDWF, popGet(AOP(IC_LEFT(ic)),offset,FALSE,FALSE));
+ emitpcode(POC_ADDWF, popGet(AOP(IC_LEFT(ic)),offset));
}
offset++;
}
-
+#endif
} else if(AOP_TYPE(IC_RIGHT(ic)) == AOP_CRY) {
// bit subtraction
if(size == 1) {
if (pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
- emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- emitpcode(POC_DECF , popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_DECF , popGet(AOP(IC_RESULT(ic)),0));
pic14_emitcode("btfsc","(%s >> 3), (%s & 7)",
AOP(IC_RIGHT(ic))->aopu.aop_dir,
} else {
if(AOP_TYPE(IC_LEFT(ic)) == AOP_ACC) {
- emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0));
emitpcode(POC_XORLW , popGetLit(1));
}else if( (AOP_TYPE(IC_LEFT(ic)) == AOP_IMMD) ||
(AOP_TYPE(IC_LEFT(ic)) == AOP_LIT) ) {
if(AOP_TYPE(IC_RESULT(ic)) == AOP_CRY) {
if (pic14_sameRegs(AOP(IC_RIGHT(ic)), AOP(IC_RESULT(ic))) ) {
if(lit & 1) {
- emitpcode(POC_MOVLW , popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- emitpcode(POC_XORWF , popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_MOVLW , popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_XORWF , popGet(AOP(IC_RIGHT(ic)),0));
}
}else{
- emitpcode(POC_BCF , popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_BCF , popGet(AOP(IC_RESULT(ic)),0));
if(lit & 1)
- emitpcode(POC_BTFSS , popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_BTFSS , popGet(AOP(IC_RIGHT(ic)),0));
else
- emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- emitpcode(POC_BSF , popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_BSF , popGet(AOP(IC_RESULT(ic)),0));
}
goto release;
} else {
emitpcode(POC_MOVLW , popGetLit(lit & 0xff));
- emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0));
emitpcode(POC_MOVLW , popGetLit((lit-1) & 0xff));
- emitpcode(POC_MOVWF , popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_MOVWF , popGet(AOP(IC_RESULT(ic)),0));
}
} else {
- emitpcode(POC_MOVFW , popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
- emitpcode(POC_DECFW , popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_MOVFW , popGet(AOP(IC_LEFT(ic)),0));
+ emitpcode(POC_BTFSC , popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_DECFW , popGet(AOP(IC_LEFT(ic)),0));
}
if(AOP_TYPE(IC_RESULT(ic)) != AOP_ACC) {
- emitpcode(POC_MOVWF , popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_MOVWF , popGet(AOP(IC_RESULT(ic)),0));
} else {
emitpcode(POC_ANDLW , popGetLit(1));
}
}
+ } else if(// (AOP_TYPE(IC_LEFT(ic)) == AOP_IMMD) ||
+ (AOP(IC_LEFT(ic))->type == AOP_LIT) &&
+ (AOP_TYPE(IC_RIGHT(ic)) != AOP_ACC)) {
+
+ lit = (unsigned long)floatFromVal(AOP(IC_LEFT(ic))->aopu.aop_lit);
+ DEBUGpic14_emitcode ("; left is lit","line %d result %s, left %s, right %s",__LINE__,
+ AopType(AOP_TYPE(IC_RESULT(ic))),
+ AopType(AOP_TYPE(IC_LEFT(ic))),
+ AopType(AOP_TYPE(IC_RIGHT(ic))));
+
+
+ if( (size == 1) && ((lit & 0xff) == 0) ) {
+ /* res = 0 - right */
+ if (pic14_sameRegs(AOP(IC_RIGHT(ic)), AOP(IC_RESULT(ic))) ) {
+ emitpcode(POC_COMF, popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_INCF, popGet(AOP(IC_RIGHT(ic)),0));
+ } else {
+ emitpcode(POC_COMFW, popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),0));
+ emitpcode(POC_INCF, popGet(AOP(IC_RESULT(ic)),0));
+ }
+ goto release;
+ }
+
+ emitpcode(POC_MOVFW, popGet(AOP(IC_RIGHT(ic)),0));
+ emitpcode(POC_SUBLW, popGetLit(lit & 0xff));
+ emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0));
+
+
+ offset = 1;
+ while(--size) {
+ lit >>= 8;
+
+ if(size == 1) {
+ /* This is the last byte in a multibyte subtraction
+ * There are a couple of tricks we can do by not worrying about
+ * propogating the carry */
+ if(lit == 0xff) {
+ /* 0xff - x == ~x */
+ if(same) {
+ emitpcode(POC_COMF, popGet(AOP(IC_RESULT(ic)),offset));
+ emitSKPC;
+ emitpcode(POC_DECF, popGet(AOP(IC_RESULT(ic)),offset));
+ } else {
+ emitpcode(POC_COMFW, popGet(AOP(IC_RIGHT(ic)),offset));
+ emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),offset));
+ emitSKPC;
+ emitpcode(POC_DECF, popGet(AOP(IC_RESULT(ic)),offset));
+ }
+ } else {
+ emitpcode(POC_MOVFW, popGet(AOP(IC_RIGHT(ic)),offset));
+ emitSKPC;
+ emitpcode(POC_INCFW, popGet(AOP(IC_RIGHT(ic)),offset));
+ emitpcode(POC_SUBLW, popGetLit(lit & 0xff));
+ emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),offset));
+ }
+
+ goto release;
+ }
+
+ if(same) {
+
+ if(lit & 0xff) {
+ emitpcode(POC_MOVLW, popGetLit(lit & 0xff));
+ emitSKPC;
+ emitpcode(POC_MOVLW, popGetLit((lit & 0xff)-1));
+ emitpcode(POC_SUBWF, popGet(AOP(IC_RESULT(ic)),offset));
+ } else {
+ emitSKPNC;
+ emitpcode(POC_SUBWF, popGet(AOP(IC_RESULT(ic)),offset));
+
+ }
+ } else {
+
+ if(lit & 0xff) {
+ emitpcode(POC_MOVLW, popGetLit(lit & 0xff));
+ emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),offset));
+ } else
+ emitpcode(POC_CLRF, popGet(AOP(IC_RESULT(ic)),offset));
+
+ emitpcode(POC_MOVFW, popGet(AOP(IC_RIGHT(ic)),offset));
+ emitSKPC;
+ emitpcode(POC_INCFSZW,popGet(AOP(IC_RIGHT(ic)),offset));
+ emitpcode(POC_SUBWF, popGet(AOP(IC_RESULT(ic)),offset));
+ }
+ }
+
+
} else {
+ DEBUGpic14_emitcode ("; ","line %d result %s, left %s, right %s",__LINE__,
+ AopType(AOP_TYPE(IC_RESULT(ic))),
+ AopType(AOP_TYPE(IC_LEFT(ic))),
+ AopType(AOP_TYPE(IC_RIGHT(ic))));
+
if(strcmp(aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE),"a") == 0 ) {
DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- emitpcode(POC_SUBFW, popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_SUBFW, popGet(AOP(IC_RIGHT(ic)),0));
emitpcode(POC_SUBLW, popGetLit(0));
- emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0));
} else {
if ( AOP_TYPE(IC_LEFT(ic)) == AOP_ACC) {
- emitpcode(POC_SUBFW, popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_SUBFW, popGet(AOP(IC_RIGHT(ic)),0));
emitpcode(POC_SUBLW, popGetLit(0));
if ( AOP_TYPE(IC_RESULT(ic)) != AOP_ACC)
- emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0));
} else {
DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
if(AOP_TYPE(IC_RIGHT(ic)) != AOP_ACC)
- emitpcode(POC_MOVFW,popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_MOVFW,popGet(AOP(IC_RIGHT(ic)),0));
if (pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) )
- emitpcode(POC_SUBWF, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_SUBWF, popGet(AOP(IC_LEFT(ic)),0));
else {
if( (AOP_TYPE(IC_LEFT(ic)) == AOP_IMMD) ||
(AOP_TYPE(IC_LEFT(ic)) == AOP_LIT) ) {
- emitpcode(POC_SUBLW, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_SUBLW, popGet(AOP(IC_LEFT(ic)),0));
} else {
- emitpcode(POC_SUBFW, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_SUBFW, popGet(AOP(IC_LEFT(ic)),0));
}
if ( AOP_TYPE(IC_RESULT(ic)) != AOP_ACC) {
if ( AOP_TYPE(IC_RESULT(ic)) == AOP_CRY) {
- emitpcode(POC_BCF , popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_BCF , popGet(AOP(IC_RESULT(ic)),0));
emitSKPZ;
- emitpcode(POC_BSF , popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_BSF , popGet(AOP(IC_RESULT(ic)),0));
}else
- emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_MOVWF,popGet(AOP(IC_RESULT(ic)),0));
}
}
}
while(size--){
if (!pic14_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
- emitpcode(POC_MOVFW, popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
- emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
+ emitpcode(POC_MOVFW, popGet(AOP(IC_LEFT(ic)),offset));
+ emitpcode(POC_MOVWF, popGet(AOP(IC_RESULT(ic)),offset));
}
- emitpcode(POC_MOVFW, popGet(AOP(IC_RIGHT(ic)),offset,FALSE,FALSE));
- emitSKPNC;
- emitpcode(POC_INCFSZW,popGet(AOP(IC_RIGHT(ic)),offset,FALSE,FALSE));
- emitpcode(POC_SUBWF, popGet(AOP(IC_RESULT(ic)),offset,FALSE,FALSE));
+ emitpcode(POC_MOVFW, popGet(AOP(IC_RIGHT(ic)),offset));
+ emitSKPC;
+ emitpcode(POC_INCFSZW,popGet(AOP(IC_RIGHT(ic)),offset));
+ emitpcode(POC_SUBWF, popGet(AOP(IC_RESULT(ic)),offset));
offset++;
}
freeAsmop(IC_RIGHT(ic),NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
freeAsmop(IC_RESULT(ic),NULL,ic,TRUE);
}
+/*-----------------------------------------------------------------*
+ * genUMult8XLit_16 - unsigned multiplication of two 8-bit numbers.
+ *
+ *
+ *-----------------------------------------------------------------*/
+void genUMult8XLit_16 (operand *left,
+ operand *right,
+ operand *result,
+ pCodeOpReg *result_hi)
+
+{
+
+ unsigned int lit;
+ unsigned int i,have_first_bit;
+ int same;
+
+ if (AOP_TYPE(right) != AOP_LIT){
+ fprintf(stderr,"%s %d - right operand is not a literal\n",__FILE__,__LINE__);
+ exit(1);
+ }
+
+
+ if(!result_hi) {
+ result_hi = PCOR(popGet(AOP(result),1));
+ }
+
+ lit = (unsigned int)floatFromVal(AOP(right)->aopu.aop_lit);
+ lit &= 0xff;
+ pic14_emitcode(";","Unrolled 8 X 8 multiplication");
+
+ same = pic14_sameRegs(AOP(left), AOP(result));
+
+ if(same) {
+ switch(lit) {
+ case 0:
+ emitpcode(POC_CLRF, popGet(AOP(left),0));
+ return;
+ case 2:
+ emitpcode(POC_MOVFW, popGet(AOP(left),0));
+ emitpcode(POC_ADDWF, popGet(AOP(left),0));
+ return;
+ case 3:
+ emitpcode(POC_MOVFW, popGet(AOP(left),0));
+ emitpcode(POC_ADDWF, popGet(AOP(left),0));
+ emitpcode(POC_ADDWF, popGet(AOP(left),0));
+ return;
+ case 4:
+ emitpcode(POC_MOVFW, popGet(AOP(left),0));
+ emitpcode(POC_ADDWF, popGet(AOP(left),0));
+ emitpcode(POC_ADDWF, popGet(AOP(left),0));
+ return;
+ case 16:
+ emitpcode(POC_SWAPFW, popGet(AOP(left),0));
+ emitpcode(POC_ANDLW, popGetLit(0xf0));
+ emitpcode(POC_MOVWF, popGet(AOP(left),0));
+ return;
+ case 17:
+ emitpcode(POC_SWAPFW, popGet(AOP(left),0));
+ emitpcode(POC_ANDLW, popGetLit(0xf0));
+ emitpcode(POC_ADDWF, popGet(AOP(left),0));
+ return;
+
+ }
+ } else {
+
+ switch(lit) {
+ case 0:
+ emitpcode(POC_CLRF, popGet(AOP(result),0));
+ emitpcode(POC_CLRF, popCopyReg(result_hi));
+ return;
+ case 2:
+ emitpcode(POC_MOVFW, popGet(AOP(left),0));
+ emitpcode(POC_MOVWF, popGet(AOP(result),0));
+ emitpcode(POC_ADDWF, popGet(AOP(result),0));
+ emitpcode(POC_CLRF, popCopyReg(result_hi));
+ emitpcode(POC_RLF, popCopyReg(result_hi));
+ return;
+ }
+
+ }
+
+ emitpcode(POC_MOVFW, popGet(AOP(left),0));
+ emitpcode(POC_CLRF, popGet(AOP(result),0));
+ emitpcode(POC_CLRF, popCopyReg(result_hi));
+
+ have_first_bit = 0;
+ for(i=0; i<8; i++) {
+
+ if(lit & 1) {
+ emitpcode(POC_ADDWF, popCopyReg(result_hi));
+ have_first_bit = 1;
+ }
+
+ if(have_first_bit) {
+ emitpcode(POC_RRF, popCopyReg(result_hi));
+ emitpcode(POC_RRF, popGet(AOP(result),0));
+ }
+
+ lit >>= 1;
+ }
+
+}
+
+/*-----------------------------------------------------------------*
+ * genUMult8X8_16 - unsigned multiplication of two 8-bit numbers.
+ *
+ *
+ *-----------------------------------------------------------------*/
+void genUMult8X8_16 (operand *left,
+ operand *right,
+ operand *result,
+ pCodeOpReg *result_hi)
+
+{
+
+ int i;
+ int looped = 1;
+
+ if(!result_hi) {
+ result_hi = PCOR(popGet(AOP(result),1));
+ }
+
+ if (AOP_TYPE(right) == AOP_LIT) {
+ genUMult8XLit_16(left,right,result,result_hi);
+ return;
+ }
+
+ if(!looped) {
+ pic14_emitcode(";","Unrolled 8 X 8 multiplication");
+
+ emitpcode(POC_MOVFW, popGet(AOP(right),0));
+ emitpcode(POC_CLRF, popGet(AOP(result),0));
+ emitpcode(POC_CLRF, popCopyReg(result_hi));
+ emitCLRC;
+
+ for(i=0; i<8; i++) {
+ emitpcode(POC_BTFSC, newpCodeOpBit(aopGet(AOP(left),0,FALSE,FALSE),i,0));
+ emitpcode(POC_ADDWF, popCopyReg(result_hi));
+ emitpcode(POC_RRF, popCopyReg(result_hi));
+ emitpcode(POC_RRF, popGet(AOP(result),0));
+ }
+
+
+ /*
+ Here's another version that does the same thing and takes the
+ same number of instructions. The one above is slightly better
+ because the entry instructions have a higher probability of
+ being optimized out.
+ */
+ /*
+ emitpcode(POC_CLRF, popCopyReg(result_hi));
+ emitpcode(POC_RRFW, popGet(AOP(left),0));
+ emitpcode(POC_MOVWF, popGet(AOP(result),0));
+ emitpcode(POC_MOVFW, popGet(AOP(right),0));
+
+ for(i=0; i<8; i++) {
+ emitSKPNC;
+ emitpcode(POC_ADDWF, popCopyReg(result_hi));
+ emitpcode(POC_RRF, popCopyReg(result_hi));
+ emitpcode(POC_RRF, popGet(AOP(result),0));
+ }
+ */
+
+ } else {
+ symbol *tlbl = newiTempLabel(NULL);
+ pCodeOp *temp;
+
+
+ pic14_emitcode(";","Looped 8 X 8 multiplication");
+ emitpcode(POC_CLRF, popGet(AOP(result),0));
+ emitpcode(POC_CLRF, popCopyReg(result_hi));
+ emitpcode(POC_BSF, newpCodeOpBit(aopGet(AOP(result),0,FALSE,FALSE),7,0));
+
+ emitpcode(POC_MOVFW, popGet(AOP(right),0));
+
+ temp = popGetTempReg();
+ emitpcode(POC_MOVWF, popCopyReg(PCOR(temp)));
+
+ emitpcode(POC_MOVFW, popGet(AOP(left),0));
+
+ emitpLabel(tlbl->key);
+
+ emitpcode(POC_RRF, popCopyReg(PCOR(temp)));
+ emitSKPNC;
+ emitpcode(POC_ADDWF, popCopyReg(result_hi));
+
+ emitpcode(POC_RRF, popCopyReg(result_hi));
+ emitpcode(POC_RRF, popGet(AOP(result),0));
+
+ emitSKPC;
+ emitpcode(POC_GOTO, popGetLabel(tlbl->key));
+
+ popReleaseTempReg(temp);
+
+ }
+}
+
+/*-----------------------------------------------------------------*
+ * genSMult8X8_16 - signed multiplication of two 8-bit numbers
+ *
+ * this routine will call the unsigned multiply routine and then
+ * post-fix the sign bit.
+ *-----------------------------------------------------------------*/
+void genSMult8X8_16 (operand *left,
+ operand *right,
+ operand *result,
+ pCodeOpReg *result_hi)
+{
+
+ if(!result_hi) {
+ result_hi = PCOR(popGet(AOP(result),1));
+ }
+
+ genUMult8X8_16(left,right,result,result_hi);
+
+ emitpcode(POC_BTFSC, newpCodeOpBit(aopGet(AOP(left),0,FALSE,FALSE),7,0));
+ emitpcode(POC_SUBWF, popCopyReg(result_hi));
+ emitpcode(POC_MOVFW, popGet(AOP(left),0));
+ emitpcode(POC_BTFSC, newpCodeOpBit(aopGet(AOP(right),0,FALSE,FALSE),7,0));
+ emitpcode(POC_SUBWF, popGet(AOP(result),1));
+
+}
+
+/*-----------------------------------------------------------------*
+ * genMult8X8_8 - multiplication of two 8-bit numbers
+ *
+ * this routine will call the unsigned multiply 8X8=>16 routine and
+ * then throw away the high byte of the result.
+ *
+ *-----------------------------------------------------------------*/
+void genMult8X8_8 (operand *left,
+ operand *right,
+ operand *result)
+{
+ pCodeOp *result_hi = popGetTempReg();
+
+ if (AOP_TYPE(right) == AOP_LIT)
+ genUMult8XLit_16(left,right,result,PCOR(result_hi));
+ else
+ genUMult8X8_16(left,right,result,PCOR(result_hi));
+
+ popReleaseTempReg(result_hi);
+}
+#if 0
+/*-----------------------------------------------------------------*/
+/* constMult - generates code for multiplication by a constant */
+/*-----------------------------------------------------------------*/
+void genMultConst(unsigned C)
+{
+
+ unsigned lit;
+ unsigned sr3; // Shift right 3
+ unsigned mask;
+
+ int size = 1;
+
+ /*
+ Convert a string of 3 binary 1's in the lit into
+ 0111 = 1000 - 1;
+ */
+
+ mask = 7 << ( (size*8) - 3);
+ lit = C;
+ sr3 = 0;
+
+ while(mask < (1<<size*8)) {
+
+ if( (mask & lit) == lit) {
+ unsigned lsb;
+
+ /* We found 3 (or more) consecutive 1's */
+
+ lsb = mask & ~(mask & (mask-1)); // lsb of mask.
+
+ consecutive_bits = ((lit + lsb) & lit) ^ lit;
+
+ lit ^= consecutive_bits;
+
+ mask <<= 3;
+
+ sr3 |= (consecutive + lsb);
+
+ }
+
+ mask >>= 1;
+
+ }
+
+}
+
+#endif
projects / fw / sdcc / blobdiff