}
}
-/*-----------------------------------------------------------------*/
-/* genPlusBits - generates code for addition of two bits */
-/*-----------------------------------------------------------------*/
-void genPlusBits (iCode *ic)
-{
- FENTRY;
-
- DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
-
- 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;
- /* case AOP_CRY:
- if(pic14_sameRegs(AOP(IC_RESULT(ic)),AOP(IC_LEFT(ic)))) {
-
- } else {
-
- }
- break;*/
- default:
- if(pic14_sameRegs(AOP(IC_RESULT(ic)),AOP(IC_LEFT(ic)))) {
- DebugAop(AOP(IC_LEFT(ic)));
- emitpcode(POC_MOVLW, popGet(AOP(IC_LEFT(ic)),0));
- emitpcode(POC_BTFSC, popGet(AOP(IC_RIGHT(ic)),0));
- emitpcode(POC_XORWF, popGet(AOP(IC_LEFT(ic)),0));
- } else {
- 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;
- }
-
-}
-
#if 0
/* This is the original version of this code.
*
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) {
}
}
-/*-----------------------------------------------------------------*/
-/* genMinusBits - generates code for subtraction of two bits */
-/*-----------------------------------------------------------------*/
-void genMinusBits (iCode *ic)
-{
- symbol *lbl = newiTempLabel(NULL);
- FENTRY;
- DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- if (AOP_TYPE(IC_RESULT(ic)) == AOP_CRY){
- pic14_emitcode("mov","c,%s",AOP(IC_LEFT(ic))->aopu.aop_dir);
- pic14_emitcode("jnb","%s,%05d_DS_",AOP(IC_RIGHT(ic))->aopu.aop_dir,(lbl->key+100));
- pic14_emitcode("cpl","c");
- pic14_emitcode("","%05d_DS_:",(lbl->key+100));
- pic14_outBitC(IC_RESULT(ic));
- }
- else{
- pic14_emitcode("mov","c,%s",AOP(IC_RIGHT(ic))->aopu.aop_dir);
- pic14_emitcode("subb","a,acc");
- pic14_emitcode("jnb","%s,%05d_DS_",AOP(IC_LEFT(ic))->aopu.aop_dir,(lbl->key+100));
- pic14_emitcode("inc","a");
- pic14_emitcode("","%05d_DS_:",(lbl->key+100));
- aopPut(AOP(IC_RESULT(ic)),"a",0);
- addSign(IC_RESULT(ic), MSB16, SPEC_USIGN(getSpec(operandType(IC_RESULT(ic)))));
- }
-}
-
/*-----------------------------------------------------------------*/
/* genMinus - generates code for subtraction */
/*-----------------------------------------------------------------*/
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 &&
- AOP_TYPE(IC_RIGHT(ic)) == AOP_CRY) {
- genPlusBits (ic);
- goto release ;
- }
-
/* if I can do an decrement instead
of subtract then GOOD for ME */
// if (genMinusDec (ic) == TRUE)
FENTRY;
if (AOP_TYPE(right) != AOP_LIT){
fprintf(stderr,"%s %d - right operand is not a literal\n",__FILE__,__LINE__);
- exit(1);
+ exit(EXIT_FAILURE);
}
temp = popGetTempReg();
if(!temp) {
fprintf(stderr,"ERROR: unable to allocate register. %s:%d\n",__FUNCTION__,__LINE__);
- exit(1);
+ exit(EXIT_FAILURE);
}
emitpcode(POC_SWAPFW, popGet(AOP(left),0));
emitpcode(POC_MOVWF, temp);
projects / fw / sdcc / blobdiff