/*-----------------------------------------------------------------*/
static void genXor (iCode *ic, iCode *ifx)
{
- operand *left, *right, *result;
- int size, offset=0;
- unsigned long lit = 0L;
+ operand *left, *right, *result;
+ int size, offset=0;
+ unsigned long lit = 0L;
- DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ DEBUGpic14_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- aopOp((left = IC_LEFT(ic)),ic,FALSE);
- aopOp((right= IC_RIGHT(ic)),ic,FALSE);
- aopOp((result=IC_RESULT(ic)),ic,TRUE);
+ aopOp((left = IC_LEFT(ic)),ic,FALSE);
+ aopOp((right= IC_RIGHT(ic)),ic,FALSE);
+ aopOp((result=IC_RESULT(ic)),ic,TRUE);
- /* if left is a literal & right is not ||
- if left needs acc & right does not */
- if ((AOP_TYPE(left) == AOP_LIT && AOP_TYPE(right) != AOP_LIT) ||
- (AOP_NEEDSACC(left) && !AOP_NEEDSACC(right))) {
- operand *tmp = right ;
- right = left;
- left = tmp;
- }
+ /* if left is a literal & right is not ||
+ if left needs acc & right does not */
+ if ((AOP_TYPE(left) == AOP_LIT && AOP_TYPE(right) != AOP_LIT) ||
+ (AOP_NEEDSACC(left) && !AOP_NEEDSACC(right))) {
+ operand *tmp = right ;
+ right = left;
+ left = tmp;
+ }
- /* if result = right then exchange them */
- if(pic14_sameRegs(AOP(result),AOP(right))){
- operand *tmp = right ;
- right = left;
- left = tmp;
- }
+ /* if result = right then exchange them */
+ if(pic14_sameRegs(AOP(result),AOP(right))){
+ operand *tmp = right ;
+ right = left;
+ left = tmp;
+ }
- /* if right is bit then exchange them */
- if (AOP_TYPE(right) == AOP_CRY &&
- AOP_TYPE(left) != AOP_CRY){
- operand *tmp = right ;
- right = left;
- left = tmp;
- }
- if(AOP_TYPE(right) == AOP_LIT)
- lit = (unsigned long)floatFromVal (AOP(right)->aopu.aop_lit);
+ /* if right is bit then exchange them */
+ if (AOP_TYPE(right) == AOP_CRY &&
+ AOP_TYPE(left) != AOP_CRY){
+ operand *tmp = right ;
+ right = left;
+ left = tmp;
+ }
+ if(AOP_TYPE(right) == AOP_LIT)
+ lit = (unsigned long)floatFromVal (AOP(right)->aopu.aop_lit);
- size = AOP_SIZE(result);
+ size = AOP_SIZE(result);
- // if(bit ^ yy)
- // xx = bit ^ yy;
- if (AOP_TYPE(left) == AOP_CRY){
- if(AOP_TYPE(right) == AOP_LIT){
- // c = bit & literal;
- if(lit>>1){
- // lit>>1 != 0 => result = 1
- if(AOP_TYPE(result) == AOP_CRY){
- if(size)
- pic14_emitcode("setb","%s",AOP(result)->aopu.aop_dir);
- else if(ifx)
- continueIfTrue(ifx);
- goto release;
- }
- pic14_emitcode("setb","c");
- } else{
- // lit == (0 or 1)
- if(lit == 0){
- // lit == 0, result = left
- if(size && pic14_sameRegs(AOP(result),AOP(left)))
- goto release;
- pic14_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
- } else{
- // lit == 1, result = not(left)
- if(size && pic14_sameRegs(AOP(result),AOP(left))){
- pic14_emitcode("cpl","%s",AOP(result)->aopu.aop_dir);
- goto release;
- } else {
- pic14_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
- pic14_emitcode("cpl","c");
- }
- }
- }
+ // if(bit ^ yy)
+ // xx = bit ^ yy;
+ if (AOP_TYPE(left) == AOP_CRY){
+ if(AOP_TYPE(right) == AOP_LIT){
+ // c = bit & literal;
+ if(lit>>1){
+ // lit>>1 != 0 => result = 1
+ if(AOP_TYPE(result) == AOP_CRY){
+ if(size)
+ pic14_emitcode("setb","%s",AOP(result)->aopu.aop_dir);
+ else if(ifx)
+ continueIfTrue(ifx);
+ goto release;
+ }
+ pic14_emitcode("setb","c");
+ } else{
+ // lit == (0 or 1)
+ if(lit == 0){
+ // lit == 0, result = left
+ if(size && pic14_sameRegs(AOP(result),AOP(left)))
+ goto release;
+ pic14_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
+ } else{
+ // lit == 1, result = not(left)
+ if(size && pic14_sameRegs(AOP(result),AOP(left))){
+ pic14_emitcode("cpl","%s",AOP(result)->aopu.aop_dir);
+ goto release;
+ } else {
+ pic14_emitcode("mov","c,%s",AOP(left)->aopu.aop_dir);
+ pic14_emitcode("cpl","c");
+ }
+ }
+ }
- } else {
- // right != literal
- symbol *tlbl = newiTempLabel(NULL);
- if (AOP_TYPE(right) == AOP_CRY){
- // c = bit ^ bit;
- pic14_emitcode("mov","c,%s",AOP(right)->aopu.aop_dir);
- }
- else{
- int sizer = AOP_SIZE(right);
- // c = bit ^ val
- // if val>>1 != 0, result = 1
- pic14_emitcode("setb","c");
- while(sizer){
- MOVA(aopGet(AOP(right),sizer-1,FALSE,FALSE));
- if(sizer == 1)
- // test the msb of the lsb
- pic14_emitcode("anl","a,#0xfe");
- pic14_emitcode("jnz","%05d_DS_",tlbl->key+100);
- sizer--;
- }
- // val = (0,1)
- pic14_emitcode("rrc","a");
- }
- pic14_emitcode("jnb","%s,%05d_DS_",AOP(left)->aopu.aop_dir,(tlbl->key+100));
- pic14_emitcode("cpl","c");
- pic14_emitcode("","%05d_DS_:",(tlbl->key+100));
- }
- // bit = c
- // val = c
- if(size)
- pic14_outBitC(result);
- // if(bit | ...)
- else if((AOP_TYPE(result) == AOP_CRY) && ifx)
- genIfxJump(ifx, "c");
- goto release ;
+ } else {
+ // right != literal
+ symbol *tlbl = newiTempLabel(NULL);
+ if (AOP_TYPE(right) == AOP_CRY){
+ // c = bit ^ bit;
+ pic14_emitcode("mov","c,%s",AOP(right)->aopu.aop_dir);
+ }
+ else{
+ int sizer = AOP_SIZE(right);
+ // c = bit ^ val
+ // if val>>1 != 0, result = 1
+ pic14_emitcode("setb","c");
+ while(sizer){
+ MOVA(aopGet(AOP(right),sizer-1,FALSE,FALSE));
+ if(sizer == 1)
+ // test the msb of the lsb
+ pic14_emitcode("anl","a,#0xfe");
+ pic14_emitcode("jnz","%05d_DS_",tlbl->key+100);
+ sizer--;
+ }
+ // val = (0,1)
+ pic14_emitcode("rrc","a");
+ }
+ pic14_emitcode("jnb","%s,%05d_DS_",AOP(left)->aopu.aop_dir,(tlbl->key+100));
+ pic14_emitcode("cpl","c");
+ pic14_emitcode("","%05d_DS_:",(tlbl->key+100));
}
+ // bit = c
+ // val = c
+ if(size)
+ pic14_outBitC(result);
+ // if(bit | ...)
+ else if((AOP_TYPE(result) == AOP_CRY) && ifx)
+ genIfxJump(ifx, "c");
+ goto release ;
+ }
- if(pic14_sameRegs(AOP(result),AOP(left))){
- /* if left is same as result */
- for(;size--; offset++) {
- if(AOP_TYPE(right) == AOP_LIT){
- int t = (lit >> (offset*8)) & 0x0FFL;
- if(t == 0x00L)
- continue;
- else
- if (IS_AOP_PREG(left)) {
- MOVA(aopGet(AOP(right),offset,FALSE,FALSE));
- pic14_emitcode("xrl","a,%s",aopGet(AOP(left),offset,FALSE,TRUE));
- aopPut(AOP(result),"a",offset);
- } else {
- emitpcode(POC_MOVLW, popGetLit(t));
- emitpcode(POC_XORWF,popGet(AOP(left),offset,FALSE,FALSE));
- pic14_emitcode("xrl","%s,%s",
- aopGet(AOP(left),offset,FALSE,TRUE),
- aopGet(AOP(right),offset,FALSE,FALSE));
- }
- } else {
- if (AOP_TYPE(left) == AOP_ACC)
- pic14_emitcode("xrl","a,%s",aopGet(AOP(right),offset,FALSE,FALSE));
- else {
- MOVA(aopGet(AOP(right),offset,FALSE,FALSE));
- if (IS_AOP_PREG(left)) {
- pic14_emitcode("xrl","a,%s",aopGet(AOP(left),offset,FALSE,TRUE));
- aopPut(AOP(result),"a",offset);
- } else
- pic14_emitcode("xrl","%s,a",
- aopGet(AOP(left),offset,FALSE,TRUE));
- }
- }
- }
- } else {
- // left & result in different registers
- if(AOP_TYPE(result) == AOP_CRY){
- // result = bit
- // if(size), result in bit
- // if(!size && ifx), conditional oper: if(left ^ right)
- symbol *tlbl = newiTempLabel(NULL);
- int sizer = max(AOP_SIZE(left),AOP_SIZE(right));
- if(size)
- pic14_emitcode("setb","c");
- while(sizer--){
- if((AOP_TYPE(right) == AOP_LIT) &&
- (((lit >> (offset*8)) & 0x0FFL) == 0x00L)){
- MOVA(aopGet(AOP(left),offset,FALSE,FALSE));
- } else {
- MOVA(aopGet(AOP(right),offset,FALSE,FALSE));
- pic14_emitcode("xrl","a,%s",
- aopGet(AOP(left),offset,FALSE,FALSE));
- }
- pic14_emitcode("jnz","%05d_DS_",tlbl->key+100);
- offset++;
- }
- if(size){
- CLRC;
- pic14_emitcode("","%05d_DS_:",tlbl->key+100);
- pic14_outBitC(result);
- } else if(ifx)
- jmpTrueOrFalse(ifx, tlbl);
- } else for(;(size--);offset++){
- // normal case
- // result = left & right
- if(AOP_TYPE(right) == AOP_LIT){
- int t = (lit >> (offset*8)) & 0x0FFL;
- switch(t) {
- case 0x00:
- emitpcode(POC_MOVFW,popGet(AOP(left),offset,FALSE,FALSE));
- emitpcode(POC_MOVWF,popGet(AOP(result),offset,FALSE,FALSE));
- pic14_emitcode("movf","%s,w",
+ if(pic14_sameRegs(AOP(result),AOP(left))){
+ /* if left is same as result */
+ for(;size--; offset++) {
+ if(AOP_TYPE(right) == AOP_LIT){
+ int t = (lit >> (offset*8)) & 0x0FFL;
+ if(t == 0x00L)
+ continue;
+ else
+ if (IS_AOP_PREG(left)) {
+ MOVA(aopGet(AOP(right),offset,FALSE,FALSE));
+ pic14_emitcode("xrl","a,%s",aopGet(AOP(left),offset,FALSE,TRUE));
+ aopPut(AOP(result),"a",offset);
+ } else {
+ emitpcode(POC_MOVLW, popGetLit(t));
+ emitpcode(POC_XORWF,popGet(AOP(left),offset,FALSE,FALSE));
+ pic14_emitcode("xrl","%s,%s",
+ aopGet(AOP(left),offset,FALSE,TRUE),
+ aopGet(AOP(right),offset,FALSE,FALSE));
+ }
+ } else {
+ if (AOP_TYPE(left) == AOP_ACC)
+ pic14_emitcode("xrl","a,%s",aopGet(AOP(right),offset,FALSE,FALSE));
+ else {
+ emitpcode(POC_MOVFW,popGet(AOP(right),offset,FALSE,FALSE));
+ emitpcode(POC_XORWF,popGet(AOP(left),offset,FALSE,FALSE));
+/*
+ if (IS_AOP_PREG(left)) {
+ pic14_emitcode("xrl","a,%s",aopGet(AOP(left),offset,FALSE,TRUE));
+ aopPut(AOP(result),"a",offset);
+ } else
+ pic14_emitcode("xrl","%s,a",
+ aopGet(AOP(left),offset,FALSE,TRUE));
+*/
+ }
+ }
+ }
+ } else {
+ // left & result in different registers
+ if(AOP_TYPE(result) == AOP_CRY){
+ // result = bit
+ // if(size), result in bit
+ // if(!size && ifx), conditional oper: if(left ^ right)
+ symbol *tlbl = newiTempLabel(NULL);
+ int sizer = max(AOP_SIZE(left),AOP_SIZE(right));
+ if(size)
+ pic14_emitcode("setb","c");
+ while(sizer--){
+ if((AOP_TYPE(right) == AOP_LIT) &&
+ (((lit >> (offset*8)) & 0x0FFL) == 0x00L)){
+ MOVA(aopGet(AOP(left),offset,FALSE,FALSE));
+ } else {
+ MOVA(aopGet(AOP(right),offset,FALSE,FALSE));
+ pic14_emitcode("xrl","a,%s",
aopGet(AOP(left),offset,FALSE,FALSE));
- pic14_emitcode("movwf","%s",
+ }
+ pic14_emitcode("jnz","%05d_DS_",tlbl->key+100);
+ offset++;
+ }
+ if(size){
+ CLRC;
+ pic14_emitcode("","%05d_DS_:",tlbl->key+100);
+ pic14_outBitC(result);
+ } else if(ifx)
+ jmpTrueOrFalse(ifx, tlbl);
+ } else for(;(size--);offset++){
+ // normal case
+ // result = left & right
+ if(AOP_TYPE(right) == AOP_LIT){
+ int t = (lit >> (offset*8)) & 0x0FFL;
+ switch(t) {
+ case 0x00:
+ emitpcode(POC_MOVFW,popGet(AOP(left),offset,FALSE,FALSE));
+ emitpcode(POC_MOVWF,popGet(AOP(result),offset,FALSE,FALSE));
+ pic14_emitcode("movf","%s,w",
+ aopGet(AOP(left),offset,FALSE,FALSE));
+ pic14_emitcode("movwf","%s",
aopGet(AOP(result),offset,FALSE,FALSE));
- break;
- case 0xff:
- emitpcode(POC_COMFW,popGet(AOP(left),offset,FALSE,FALSE));
- emitpcode(POC_MOVWF,popGet(AOP(result),offset,FALSE,FALSE));
- pic14_emitcode("comf","%s,w",
+ break;
+ case 0xff:
+ emitpcode(POC_COMFW,popGet(AOP(left),offset,FALSE,FALSE));
+ emitpcode(POC_MOVWF,popGet(AOP(result),offset,FALSE,FALSE));
+ pic14_emitcode("comf","%s,w",
aopGet(AOP(left),offset,FALSE,FALSE));
- pic14_emitcode("movwf","%s",
+ pic14_emitcode("movwf","%s",
aopGet(AOP(result),offset,FALSE,FALSE));
- break;
- default:
- emitpcode(POC_MOVLW, popGetLit(t));
- emitpcode(POC_XORFW,popGet(AOP(left),offset,FALSE,FALSE));
- emitpcode(POC_MOVWF,popGet(AOP(result),offset,FALSE,FALSE));
- pic14_emitcode("movlw","0x%x",t);
- pic14_emitcode("xorwf","%s,w",
+ break;
+ default:
+ emitpcode(POC_MOVLW, popGetLit(t));
+ emitpcode(POC_XORFW,popGet(AOP(left),offset,FALSE,FALSE));
+ emitpcode(POC_MOVWF,popGet(AOP(result),offset,FALSE,FALSE));
+ pic14_emitcode("movlw","0x%x",t);
+ pic14_emitcode("xorwf","%s,w",
aopGet(AOP(left),offset,FALSE,FALSE));
- pic14_emitcode("movwf","%s",
+ pic14_emitcode("movwf","%s",
aopGet(AOP(result),offset,FALSE,FALSE));
- }
- continue;
- }
+ }
+ continue;
+ }
- // faster than result <- left, anl result,right
- // and better if result is SFR
- if (AOP_TYPE(left) == AOP_ACC) {
- emitpcode(POC_XORFW,popGet(AOP(right),offset,FALSE,FALSE));
- pic14_emitcode("xorwf","%s,w",aopGet(AOP(right),offset,FALSE,FALSE));
- } else {
- emitpcode(POC_MOVFW,popGet(AOP(right),offset,FALSE,FALSE));
- emitpcode(POC_XORFW,popGet(AOP(left),offset,FALSE,FALSE));
- pic14_emitcode("movf","%s,w",aopGet(AOP(right),offset,FALSE,FALSE));
- pic14_emitcode("xorwf","%s,w",aopGet(AOP(left),offset,FALSE,FALSE));
- }
- if ( AOP_TYPE(result) != AOP_ACC){
- emitpcode(POC_MOVWF,popGet(AOP(result),offset,FALSE,FALSE));
- pic14_emitcode("movwf","%s",aopGet(AOP(result),offset,FALSE,FALSE));
- }
- }
+ // faster than result <- left, anl result,right
+ // and better if result is SFR
+ if (AOP_TYPE(left) == AOP_ACC) {
+ emitpcode(POC_XORFW,popGet(AOP(right),offset,FALSE,FALSE));
+ pic14_emitcode("xorwf","%s,w",aopGet(AOP(right),offset,FALSE,FALSE));
+ } else {
+ emitpcode(POC_MOVFW,popGet(AOP(right),offset,FALSE,FALSE));
+ emitpcode(POC_XORFW,popGet(AOP(left),offset,FALSE,FALSE));
+ pic14_emitcode("movf","%s,w",aopGet(AOP(right),offset,FALSE,FALSE));
+ pic14_emitcode("xorwf","%s,w",aopGet(AOP(left),offset,FALSE,FALSE));
+ }
+ if ( AOP_TYPE(result) != AOP_ACC){
+ emitpcode(POC_MOVWF,popGet(AOP(result),offset,FALSE,FALSE));
+ pic14_emitcode("movwf","%s",aopGet(AOP(result),offset,FALSE,FALSE));
+ }
}
+ }
-release :
+ release :
freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
- freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
- freeAsmop(result,NULL,ic,TRUE);
+ freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
+ freeAsmop(result,NULL,ic,TRUE);
}
/*-----------------------------------------------------------------*/
projects / fw / sdcc / commitdiff