#include "gen.h"
#include "genutils.h"
#include "device.h"
+#include "main.h"
extern void pic16_genUMult8X8_16 (operand *, operand *,operand *,pCodeOpReg *);
extern void pic16_genSMult8X8_16 (operand *, operand *,operand *,pCodeOpReg *);
void pic16_genMult8X8_8 (operand *, operand *,operand *);
-pCode *pic16_AssembleLine(char *line);
+pCode *pic16_AssembleLine(char *line, int peeps);
extern void pic16_printpBlock(FILE *of, pBlock *pb);
static asmop *newAsmop (short type);
static pCodeOp *pic16_popRegFromString(char *str, int size, int offset);
+extern pCode *pic16_newpCodeAsmDir(char *asdir, char *argfmt, ...);
static void mov2w (asmop *aop, int offset);
static int aopIdx (asmop *aop, int offset);
}
+void pic16_emitcomment (char *fmt, ...)
+{
+ va_list ap;
+ char lb[INITIAL_INLINEASM];
+ char *lbp = lb;
+
+ if(!pic16_debug_verbose)
+ return;
+
+ va_start(ap,fmt);
+
+ lb[0] = ';';
+ vsprintf(lb+1,fmt,ap);
+
+ while (isspace(*lbp)) lbp++;
+
+ if (lbp && *lbp)
+ lineCurr = (lineCurr ?
+ connectLine(lineCurr,newLineNode(lb)) :
+ (lineHead = newLineNode(lb)));
+ lineCurr->isInline = _G.inLine;
+ lineCurr->isDebug = _G.debugLine;
+
+ pic16_addpCode2pBlock(pb,pic16_newpCodeCharP(lb));
+ va_end(ap);
+
+// fprintf(stderr, "%s\n", lb);
+}
+
void DEBUGpic16_emitcode (char *inst,char *fmt, ...)
{
va_list ap;
// fprintf(stderr, "%s\n", lb);
}
-
void pic16_emitpLabel(int key)
{
pic16_addpCode2pBlock(pb,pic16_newpCodeLabel(NULL,key+100+labelOffset));
/*-----------------------------------------------------------------*/
/* pic16_popGetLit2 - asm operator to pcode operator conversion */
/*-----------------------------------------------------------------*/
-pCodeOp *pic16_popGetLit2(unsigned int lit, unsigned int lit2)
+pCodeOp *pic16_popGetLit2(unsigned int lit, pCodeOp *arg2)
{
- return pic16_newpCodeOpLit2(lit, lit2);
+ return pic16_newpCodeOpLit2(lit, arg2);
}
return pcop;
}
-static pCodeOp *popRegFromIdx(int rIdx)
+static pCodeOp *pic16_popRegFromIdx(int rIdx)
{
pCodeOp *pcop;
- DEBUGpic16_emitcode ("; ***","%s,%d , rIdx=0x%x",
- __FUNCTION__,__LINE__,rIdx);
-
- pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
+// DEBUGpic16_emitcode ("; ***","%s,%d\trIdx=0x%x", __FUNCTION__,__LINE__,rIdx);
- PCOR(pcop)->rIdx = rIdx;
- PCOR(pcop)->r = pic16_regWithIdx(rIdx);
- PCOR(pcop)->r->isFree = 0;
- PCOR(pcop)->r->wasUsed = 1;
-
- pcop->type = PCOR(pcop)->r->pc_type;
+ pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
+ PCOR(pcop)->rIdx = rIdx;
+ PCOR(pcop)->r = pic16_regWithIdx(rIdx);
+ PCOR(pcop)->r->isFree = 0;
+ PCOR(pcop)->r->wasUsed = 1;
+ pcop->type = PCOR(pcop)->r->pc_type;
return pcop;
}
pCodeOp *temp;
pcop2 = (pCodeOpReg2 *)pic16_popGet(aop_src, offset);
+
+ /* comment the following check, so errors to throw up */
+// if(!pcop2)return NULL;
+
temp = pic16_popGet(aop_dst, offset);
pcop2->pcop2 = temp;
return PCOP(pcop2);
}
-pCodeOp *pic16_popCombine2(pCodeOpReg *src, pCodeOpReg *dst)
+/*---------------------------------------------------------------------------------*/
+/* pic16_popCombine2 - combine two pCodeOpReg variables into one for use with */
+/* movff instruction */
+/*---------------------------------------------------------------------------------*/
+pCodeOp *pic16_popCombine2(pCodeOpReg *src, pCodeOpReg *dst, int noalloc)
{
pCodeOpReg2 *pcop2;
- pcop2 = (pCodeOpReg2 *)pic16_popCopyReg(src);
- pcop2->pcop2 = pic16_popCopyReg(dst);
+ if(!noalloc) {
+ pcop2 = (pCodeOpReg2 *)pic16_popCopyReg(src);
+ pcop2->pcop2 = pic16_popCopyReg(dst);
+ } else {
+ /* the pCodeOp may be already allocated */
+ pcop2 = (pCodeOpReg2 *)(src);
+ pcop2->pcop2 = (pCodeOp *)(dst);
+ }
return PCOP(pcop2);
}
+
/*-----------------------------------------------------------------*/
/* pic16_popGet - asm operator to pcode operator conversion */
/*-----------------------------------------------------------------*/
case AOP_DPTR2:
case AOP_ACC:
DEBUGpic16_emitcode(";8051 legacy","%d type = %s",__LINE__,pic16_AopType(aop->type));
+ fprintf(stderr, ";8051 legacy %d type = %s\n",__LINE__,pic16_AopType(aop->type));
return NULL;
case AOP_IMMD:
}
+void pic16_pushpCodeOpReg(pCodeOpReg *pcop)
+{
+ pic16_emitpcode(POC_MOVFF, pic16_popCombine2(pcop, &pic16_pc_postdec1, 0));
+}
+
+void pic16_poppCodeOpReg(pCodeOpReg *pcop)
+{
+ pic16_emitpcode(POC_MOVFF, pic16_popCombine2(&pic16_pc_preinc1, pcop, 0));
+}
+
+
/*-----------------------------------------------------------------*/
/* pushw - pushes wreg to stack */
/*-----------------------------------------------------------------*/
void pushaop(asmop *aop, int offset)
{
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- pic16_emitpcode(POC_MOVFF, pic16_popCombine2(PCOR(pic16_popGet(aop, offset)), &pic16_pc_postdec1));
+ pic16_emitpcode(POC_MOVFF, pic16_popCombine2(PCOR(pic16_popGet(aop, offset)), &pic16_pc_postdec1, 0));
}
-#if 0
/*-----------------------------------------------------------------*/
/* popaop - pops aop from stack */
/*-----------------------------------------------------------------*/
void popaop(asmop *aop, int offset)
{
- DEBUG
+ DEBUGpic16_emitcode("; ***", "%s %d", __FUNCTION__, __LINE__);
+ pic16_emitpcode(POC_MOVFF, pic16_popCombine2(&pic16_pc_preinc1, PCOR(pic16_popGet(aop, offset)), 0));
}
-#endif
void popaopidx(asmop *aop, int offset, int index)
{
if(STACK_MODEL_LARGE)ofs++;
pic16_emitpcode(POC_MOVLW, pic16_popGetLit(index + ofs));
- pic16_emitpcode(POC_MOVFF, pic16_popCombine2(&pic16_pc_plusw2, PCOR(pic16_popGet(aop, offset))));
+ pic16_emitpcode(POC_MOVFF, pic16_popCombine2(&pic16_pc_plusw2, PCOR(pic16_popGet(aop, offset)), 0));
}
/*-----------------------------------------------------------------*/
if(USE_STACK) {
popaopidx(AOP(oper), size, GpsuedoStkPtr);
} else {
- pic16_emitpcode(POC_MOVFW,popRegFromIdx(GpsuedoStkPtr-1 + pic16_Gstack_base_addr));
+ pic16_emitpcode(POC_MOVFW, pic16_popRegFromIdx(GpsuedoStkPtr-1 + pic16_Gstack_base_addr));
}
#else
- pic16_emitpcode(POC_MOVFW,popRegFromIdx(GpsuedoStkPtr-1 + pic16_Gstack_base_addr));
+ pic16_emitpcode(POC_MOVFW, pic16_popRegFromIdx(GpsuedoStkPtr-1 + pic16_Gstack_base_addr));
#endif /* STACK_SUPPORT */
GpsuedoStkPtr++;
pushw();
--psuedoStkPtr; // sanity check
} else {
- pic16_emitpcode(POC_MOVWF,popRegFromIdx(--psuedoStkPtr + pic16_Gstack_base_addr));
+ pic16_emitpcode(POC_MOVWF, pic16_popRegFromIdx(--psuedoStkPtr + pic16_Gstack_base_addr));
}
#else
- pic16_emitpcode(POC_MOVWF, popRegFromIdx(--psuedoStkPtr + pic16_Gstack_base_addr));
+ pic16_emitpcode(POC_MOVWF, pic16_popRegFromIdx(--psuedoStkPtr + pic16_Gstack_base_addr));
#endif /* STACK_SUPPORT */
}
}
#if STACK_SUPPORT
- if(USE_STACK) {
+ if(USE_STACK && stackParms>0) {
pic16_emitpcode(POC_MOVLW, pic16_popGetLit(stackParms));
pic16_emitpcode(POC_ADDWF, pic16_popCopyReg( &pic16_pc_fsr1l ));
if(STACK_MODEL_LARGE) {
#endif
/* adjust the stack for parameters if required */
- fprintf(stderr, "%s:%d: ic->parmBytes= %d\n", __FILE__, __LINE__, ic->parmBytes);
+// fprintf(stderr, "%s:%d: %s ic->parmBytes= %d\n", __FILE__, __LINE__, OP_SYMBOL(IC_LEFT(ic))->name, ic->parmBytes);
if (ic->parmBytes) {
int i;
/*-----------------------------------------------------------------*/
static void genFunction (iCode *ic)
{
- symbol *sym;
- sym_link *ftype;
+ symbol *sym;
+ sym_link *ftype;
- DEBUGpic16_emitcode ("; ***","%s %d curr label offset=%dprevious max_key=%d ",__FUNCTION__,__LINE__,labelOffset,max_key);
+ DEBUGpic16_emitcode ("; ***","%s %d curr label offset=%dprevious max_key=%d ",__FUNCTION__,__LINE__,labelOffset,max_key);
- labelOffset += (max_key+4);
- max_key=0;
- GpsuedoStkPtr=0;
- _G.nRegsSaved = 0;
- /* create the function header */
- pic16_emitcode(";","-----------------------------------------");
- pic16_emitcode(";"," function %s",(sym = OP_SYMBOL(IC_LEFT(ic)))->name);
- pic16_emitcode(";","-----------------------------------------");
+ labelOffset += (max_key+4);
+ max_key=0;
+ GpsuedoStkPtr=0;
+ _G.nRegsSaved = 0;
+ /* create the function header */
+ pic16_emitcode(";","-----------------------------------------");
+ pic16_emitcode(";"," function %s",(sym = OP_SYMBOL(IC_LEFT(ic)))->name);
+ pic16_emitcode(";","-----------------------------------------");
- pic16_emitcode("","%s:",sym->rname);
- pic16_addpCode2pBlock(pb,pic16_newpCodeFunction(NULL,sym->rname));
+ pic16_emitcode("","%s:",sym->rname);
+ pic16_addpCode2pBlock(pb,pic16_newpCodeFunction(moduleName,sym->rname));
- ftype = operandType(IC_LEFT(ic));
+ {
+ absSym *ab;
- /* if critical function then turn interrupts off */
- if (IFFUNC_ISCRITICAL(ftype))
- pic16_emitcode("clr","ea");
+ for(ab = setFirstItem(absSymSet); ab; ab = setNextItem(absSymSet))
+ if(strcmp(ab->name, sym->name)) {
+ pic16_pBlockConvert2Absolute(pb);
+ break;
+ }
+
+ }
- /* here we need to generate the equates for the
- register bank if required */
-#if 0
- if (FUNC_REGBANK(ftype) != rbank) {
- int i ;
-
- rbank = FUNC_REGBANK(ftype);
- for ( i = 0 ; i < pic16_nRegs ; i++ ) {
- if (strcmp(regspic16[i].base,"0") == 0)
- pic16_emitcode("","%s = 0x%02x",
- regspic16[i].dname,
- 8*rbank+regspic16[i].offset);
- else
- pic16_emitcode ("","%s = %s + 0x%02x",
- regspic16[i].dname,
- regspic16[i].base,
- 8*rbank+regspic16[i].offset);
- }
- }
-#endif
+ ftype = operandType(IC_LEFT(ic));
- /* if this is an interrupt service routine then
- save acc, b, dpl, dph */
- if (IFFUNC_ISISR(sym->type)) {
+ if(IFFUNC_ISNAKED(ftype)) {
+ DEBUGpic16_emitcode("; ***", "_naked function, no prologue");
+ return;
+ }
+
+
+ /* if critical function then turn interrupts off */
+ if (IFFUNC_ISCRITICAL(ftype))
+ pic16_emitcode("clr","ea");
+ /* here we need to generate the equates for the
+ * register bank if required */
#if 0
- pic16_addpCode2pBlock(pb,pic16_newpCode(POC_BRA,pic16_newpCodeOp("END_OF_INTERRUPT+2",PO_STR)));
-
- /* what is the reason of having these 3 NOPS? VR - 030701 */
- pic16_emitpcodeNULLop(POC_NOP);
- pic16_emitpcodeNULLop(POC_NOP);
- pic16_emitpcodeNULLop(POC_NOP);
+ if (FUNC_REGBANK(ftype) != rbank) {
+ int i ;
+
+ rbank = FUNC_REGBANK(ftype);
+ for ( i = 0 ; i < pic16_nRegs ; i++ ) {
+ if (strcmp(regspic16[i].base,"0") == 0)
+ pic16_emitcode("","%s = 0x%02x",
+ regspic16[i].dname,
+ 8*rbank+regspic16[i].offset);
+ else
+ pic16_emitcode ("","%s = %s + 0x%02x",
+ regspic16[i].dname,
+ regspic16[i].base,
+ *rbank+regspic16[i].offset);
+ }
+ }
#endif
- pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_wsave));
- pic16_emitpcode(POC_SWAPFW, pic16_popCopyReg(&pic16_pc_status));
- pic16_emitpcode(POC_CLRF, pic16_popCopyReg(&pic16_pc_status));
- pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_ssave));
+ /* if this is an interrupt service routine then
+ * save acc, b, dpl, dph */
+ if (IFFUNC_ISISR(sym->type)) {
+ pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_wsave));
+ pic16_emitpcode(POC_SWAPFW, pic16_popCopyReg(&pic16_pc_status));
+ pic16_emitpcode(POC_CLRF, pic16_popCopyReg(&pic16_pc_status));
+ pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_ssave));
- pic16_pBlockConvert2ISR(pb);
+ pic16_pBlockConvert2ISR(pb);
#if 0
- if (!inExcludeList("acc"))
- pic16_emitcode ("push","acc");
- if (!inExcludeList("b"))
- pic16_emitcode ("push","b");
- if (!inExcludeList("dpl"))
- pic16_emitcode ("push","dpl");
- if (!inExcludeList("dph"))
- pic16_emitcode ("push","dph");
- if (options.model == MODEL_FLAT24 && !inExcludeList("dpx"))
- {
- pic16_emitcode ("push", "dpx");
- /* Make sure we're using standard DPTR */
- pic16_emitcode ("push", "dps");
- pic16_emitcode ("mov", "dps, #0x00");
- if (options.stack10bit)
- {
- /* This ISR could conceivably use DPTR2. Better save it. */
- pic16_emitcode ("push", "dpl1");
- pic16_emitcode ("push", "dph1");
- pic16_emitcode ("push", "dpx1");
- }
- }
- /* if this isr has no bank i.e. is going to
- run with bank 0 , then we need to save more
- registers :-) */
- if (!FUNC_REGBANK(sym->type)) {
+ if (!inExcludeList("acc"))
+ pic16_emitcode ("push","acc");
+ if (!inExcludeList("b"))
+ pic16_emitcode ("push","b");
+ if (!inExcludeList("dpl"))
+ pic16_emitcode ("push","dpl");
+ if (!inExcludeList("dph"))
+ pic16_emitcode ("push","dph");
+
+ if (options.model == MODEL_FLAT24 && !inExcludeList("dpx")) {
+ pic16_emitcode ("push", "dpx");
+
+ /* Make sure we're using standard DPTR */
+ pic16_emitcode ("push", "dps");
+ pic16_emitcode ("mov", "dps, #0x00");
+ if (options.stack10bit) {
+ /* This ISR could conceivably use DPTR2. Better save it. */
+ pic16_emitcode ("push", "dpl1");
+ pic16_emitcode ("push", "dph1");
+ pic16_emitcode ("push", "dpx1");
+ }
+ }
- /* if this function does not call any other
- function then we can be economical and
- save only those registers that are used */
- if (! IFFUNC_HASFCALL(sym->type)) {
- int i;
+ /* if this isr has no bank i.e. is going to
+ * run with bank 0 , then we need to save more
+ * registers :-) */
+ if (!FUNC_REGBANK(sym->type)) {
+
+ /* if this function does not call any other
+ * function then we can be economical and
+ * save only those registers that are used */
+ 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) ||
+ (pic16_ptrRegReq && (i == R0_IDX || i == R1_IDX)) )
+ pic16_emitcode("push","junk");//"%s",pic16_regWithIdx(i)->dname);
+ }
+ }
- /* if any registers used */
- if (sym->regsUsed) {
- /* save the registers used */
- for ( i = 0 ; i < sym->regsUsed->size ; i++) {
- if (bitVectBitValue(sym->regsUsed,i) ||
- (pic16_ptrRegReq && (i == R0_IDX || i == R1_IDX)) )
- pic16_emitcode("push","junk");//"%s",pic16_regWithIdx(i)->dname);
- }
+ } else {
+ /* this function has a function call cannot
+ * determines register usage so we will have the
+ * entire bank */
+ saverbank(0,ic,FALSE);
+ }
}
-
- } else {
- /* this function has a function call cannot
- determines register usage so we will have the
- entire bank */
- saverbank(0,ic,FALSE);
- }
- }
#endif
- } else {
- /* if callee-save to be used for this function
- then save the registers being used in this function */
- if (IFFUNC_CALLEESAVES(sym->type)) {
- int i;
-
- /* if any registers used */
- if (sym->regsUsed) {
- /* save the registers used */
- for ( i = 0 ; i < sym->regsUsed->size ; i++) {
- if (bitVectBitValue(sym->regsUsed,i) ||
- (pic16_ptrRegReq && (i == R0_IDX || i == R1_IDX)) ) {
- //pic16_emitcode("push","%s",pic16_regWithIdx(i)->dname);
- _G.nRegsSaved++;
- }
- }
- }
- }
-
+ } else {
#if STACK_SUPPORT
- /* emit code to setup stack frame if user enabled,
- * and function is not main() */
+ /* emit code to setup stack frame if user enabled,
+ * and function is not main() */
- fprintf(stderr, "function name: %s\n", sym->name);
- if(USE_STACK && strcmp(sym->name, "main")) {
- /* setup the stack frame */
- pic16_emitpcode(POC_MOVFF, pic16_popCombine2( &pic16_pc_fsr2l, &pic16_pc_postdec1));
- pic16_emitpcode(POC_MOVFF, pic16_popCombine2( &pic16_pc_fsr1l, &pic16_pc_fsr2l));
- if(STACK_MODEL_LARGE)
- pic16_emitpcode(POC_MOVFF, pic16_popCombine2( &pic16_pc_fsr1h, &pic16_pc_fsr2h));
- }
+// fprintf(stderr, "function name: %s\n", sym->name);
+ if(USE_STACK && strcmp(sym->name, "main")) {
+ if(!options.ommitFramePtr || sym->regsUsed) {
+ /* setup the stack frame */
+ pic16_emitpcode(POC_MOVFF, pic16_popCombine2( &pic16_pc_fsr2l, &pic16_pc_postdec1, 0));
+ pic16_emitpcode(POC_MOVFF, pic16_popCombine2( &pic16_pc_fsr1l, &pic16_pc_fsr2l, 0));
+ if(STACK_MODEL_LARGE)
+ pic16_emitpcode(POC_MOVFF, pic16_popCombine2( &pic16_pc_fsr1h, &pic16_pc_fsr2h, 0));
+ }
+ }
#endif
- }
+ /* if callee-save to be used for this function
+ * then save the registers being used in this function */
+ if (IFFUNC_CALLEESAVES(sym->type)) {
+ int i;
+
+// fprintf(stderr, "%s:%d function sym->regsUsed= %p\n", __FILE__, __LINE__, sym->regsUsed);
+
+ /* if any registers used */
+ if (sym->regsUsed
+#if STACK_SUPPORT
+ && USE_STACK
+#endif
+ ) {
+ /* save the registers used */
+ DEBUGpic16_emitcode("; **", "Saving used registers in stack");
+ for ( i = 0 ; i < sym->regsUsed->size ; i++) {
+ if (bitVectBitValue(sym->regsUsed,i)) {
+// fprintf(stderr, "%s:%d function %s uses register %s\n",
+// __FILE__, __LINE__, OP_SYMBOL(IC_LEFT(ic))->name,
+// pic16_regWithIdx(i)->name);
+
+ pic16_pushpCodeOpReg( PCOR(pic16_popRegFromIdx(i) ));
+// pic16_emitpcode(POC_MOVFF, pic16_popCombine2(
+// PCOR(pic16_popCopyReg( PCOR(pic16_popRegFromIdx(i)))),
+// &pic16_pc_postdec1, 0));
+ _G.nRegsSaved++;
+ }
+ }
+ }
+ }
+ }
- /* set the register bank to the desired value */
- if (FUNC_REGBANK(sym->type) || FUNC_ISISR(sym->type)) {
- pic16_emitcode("push","psw");
- pic16_emitcode("mov","psw,#0x%02x",(FUNC_REGBANK(sym->type) << 3)&0x00ff);
- }
- if (IFFUNC_ISREENT(sym->type) || options.stackAuto) {
+
+#if 0
+ if (IFFUNC_ISREENT(sym->type) || options.stackAuto) {
- if (options.useXstack) {
- pic16_emitcode("mov","r0,%s",spname);
- pic16_emitcode("mov","a,_bp");
- pic16_emitcode("movx","@r0,a");
- pic16_emitcode("inc","%s",spname);
- }
- else
- {
- /* set up the stack */
- pic16_emitcode ("push","_bp"); /* save the callers stack */
+ if (options.useXstack) {
+ pic16_emitcode("mov","r0,%s",spname);
+ pic16_emitcode("mov","a,_bp");
+ pic16_emitcode("movx","@r0,a");
+ pic16_emitcode("inc","%s",spname);
+ } else {
+ /* set up the stack */
+ pic16_emitcode ("push","_bp"); /* save the callers stack */
+ }
+ pic16_emitcode ("mov","_bp,%s",spname);
}
- pic16_emitcode ("mov","_bp,%s",spname);
- }
-
+#endif
DEBUGpic16_emitcode("; ", "need to adjust stack = %d", sym->stack);
- /* adjust the stack for the function */
- if (sym->stack) {
+ /* adjust the stack for the function */
+ if (sym->stack) {
+ int i = sym->stack;
- int i = sym->stack;
- if (i > 256 )
- werror(W_STACK_OVERFLOW,sym->name);
+ if (i > 127 )
+ werror(W_STACK_OVERFLOW,sym->name);
- if (i > 3 && sym->recvSize < 4) {
- pic16_emitcode ("mov","a,sp");
- pic16_emitcode ("add","a,#0x%02x",((char)sym->stack & 0xff));
- pic16_emitcode ("mov","sp,a");
-
+ if (i > 3 && sym->recvSize < 4) {
+ pic16_emitcode ("mov","a,sp");
+ pic16_emitcode ("add","a,#0x%02x",((char)sym->stack & 0xff));
+ pic16_emitcode ("mov","sp,a");
+ } else
+ while(i--)
+ pic16_emitcode("inc","sp");
}
- else
- while(i--)
- pic16_emitcode("inc","sp");
- }
- if (sym->xstack) {
+ if (sym->xstack) {
DEBUGpic16_emitcode("; ", "%s", __FUNCTION__);
- pic16_emitcode ("mov","a,_spx");
- pic16_emitcode ("add","a,#0x%02x",((char)sym->xstack & 0xff));
- pic16_emitcode ("mov","_spx,a");
- }
+ pic16_emitcode ("mov","a,_spx");
+ pic16_emitcode ("add","a,#0x%02x",((char)sym->xstack & 0xff));
+ pic16_emitcode ("mov","_spx,a");
+ }
+
}
/*-----------------------------------------------------------------*/
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ if(IFFUNC_ISNAKED(sym->type)) {
+ DEBUGpic16_emitcode("; ***", "_naked function, no epilogue");
+ return;
+ }
+
+#if 0
if (IFFUNC_ISREENT(sym->type) || options.stackAuto)
{
pic16_emitcode ("mov","%s,_bp",spname);
}
+#endif
/* if use external stack but some variables were
added to the local stack then decrement the
}
+#if 0
if ((IFFUNC_ISREENT(sym->type) || options.stackAuto)) {
if (options.useXstack) {
pic16_emitcode("mov","r0,%s",spname);
pic16_emitcode ("pop","_bp");
}
}
+#endif
/* restore the register bank */
if (FUNC_REGBANK(sym->type) || FUNC_ISISR(sym->type))
if (IFFUNC_ISCRITICAL(sym->type))
pic16_emitcode("setb","ea");
- if (IFFUNC_CALLEESAVES(sym->type)) {
- int i;
-
- /* if any registers used */
- if (sym->regsUsed) {
+ /* if any registers used */
+ if (sym->regsUsed
+#if STACK_SUPPORT
+ && USE_STACK
+#endif
+ ) {
+ int i;
/* save the registers used */
- for ( i = sym->regsUsed->size ; i >= 0 ; i--) {
- if (bitVectBitValue(sym->regsUsed,i) ||
- (pic16_ptrRegReq && (i == R0_IDX || i == R1_IDX)) )
- pic16_emitcode("pop","junk");//"%s",pic16_regWithIdx(i)->dname);
+ DEBUGpic16_emitcode("; **", "Restoring used registers from stack");
+ for ( i = sym->regsUsed->size; i >= 0; i--) {
+ if (bitVectBitValue(sym->regsUsed,i)) {
+// fprintf(stderr, "%s:%d function %s uses register %s\n",
+// __FILE__, __LINE__, OP_SYMBOL(IC_LEFT(ic))->name,
+// pic16_regWithIdx(i)->name);
+
+ pic16_emitpcode(POC_MOVFF, pic16_popCombine2(
+ &pic16_pc_preinc1,
+ PCOR(pic16_popCopyReg( PCOR(pic16_popRegFromIdx(i)))), 0));
+ }
}
- }
-
}
+
/* if debug then send end of function */
if (currFunc) {
* and function is not main() */
if(USE_STACK && strcmp(sym->name, "main")) {
- /* restore stack frame */
- if(STACK_MODEL_LARGE)
+ if(!options.ommitFramePtr || sym->regsUsed) {
+ /* restore stack frame */
+ if(STACK_MODEL_LARGE)
+ pic16_emitpcode(POC_MOVFF,
+ pic16_popCombine2( &pic16_pc_postinc1, &pic16_pc_fsr2h, 0));
pic16_emitpcode(POC_MOVFF,
- pic16_popCombine2( &pic16_pc_postinc1, &pic16_pc_fsr2h ));
- pic16_emitpcode(POC_MOVFF,
- pic16_popCombine2( &pic16_pc_postinc1, &pic16_pc_fsr2l ));
-
-/*
- * I added this because of a mistake in the stack pointers design
- * They should be removed though
-
- pic16_emitpcode(POC_MOVFF, pic16_popCombine2( &pic16_pc_preinc2, &pic16_pc_fsr2h));
- pic16_emitpcode(POC_MOVFF, pic16_popCombine2( &pic16_pc_preinc2, &pic16_pc_fsr2l));
-*/
+ pic16_popCombine2( &pic16_pc_postinc1, &pic16_pc_fsr2l, 0));
+ }
}
#endif
pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_LEFT(ic)),offset));
}
if(size) {
- pic16_emitpcode(POC_MOVWF,popRegFromIdx(offset + pic16_Gstack_base_addr));
+ pic16_emitpcode(POC_MOVWF, pic16_popRegFromIdx(offset + pic16_Gstack_base_addr));
}
offset++;
}
/* Sigh. thus sucks... */
if(size) {
pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),size));
- pic16_emitpcode(POC_MOVWF, popRegFromIdx(pic16_Gstack_base_addr));
+ pic16_emitpcode(POC_MOVWF, pic16_popRegFromIdx(pic16_Gstack_base_addr));
pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0x80));
- pic16_emitpcode(POC_XORWF, popRegFromIdx(pic16_Gstack_base_addr));
+ pic16_emitpcode(POC_XORWF, pic16_popRegFromIdx(pic16_Gstack_base_addr));
pic16_emitpcode(POC_XORFW, pic16_popGet(AOP(right),size));
- pic16_emitpcode(POC_SUBFW, popRegFromIdx(pic16_Gstack_base_addr));
+ pic16_emitpcode(POC_SUBFW, pic16_popRegFromIdx(pic16_Gstack_base_addr));
} else {
/* Signed char comparison */
/* Special thanks to Nikolai Golovchenko for this snippet */
*bp++ = '\0';
if(*bp1)
- pic16_addpCode2pBlock(pb,pic16_AssembleLine(bp1));
+ pic16_addpCode2pBlock(pb, pic16_newpCodeAsmDir(bp1, NULL)); //pic16_AssembleLine(bp1, 0));
+ // inline directly, no process
bp1 = bp;
} else {
if (*bp == ':') {
}
}
if ((bp1 != bp) && *bp1)
- pic16_addpCode2pBlock(pb,pic16_AssembleLine(bp1));
+ pic16_addpCode2pBlock(pb, pic16_newpCodeAsmDir(bp1, NULL)); //pic16_AssembleLine(bp1, 0));
Safe_free(buffer);
poc = ( (AOP_TYPE(left) == AOP_PCODE) ? POC_MOVLW : POC_MOVFW);
+ /* this performs a goto to the specified address -- Why not to use pointer? -- VR */
pic16_emitpcode(poc,pic16_popGet(AOP(left),1));
pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_pclath));
pic16_emitpcode(poc,pic16_popGet(AOP(left),0));
while (size--) {
if (offset) {
sprintf(buffer,"(%s + %d)",l,offset);
- fprintf(stderr,"oops %s\n",buffer);
+ fprintf(stderr,"%s:%d: oops %s\n",__FILE__, __LINE__, buffer);
} else
sprintf(buffer,"%s",l);
operand *result, *left;
int size;
symbol *sym; // = OP_SYMBOL(IC_LEFT(ic));
- pCodeOp *pcop0, *pcop1;
+ pCodeOp *pcop0, *pcop1, *pcop2;
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
size = AOP_SIZE(IC_RESULT(ic));
- /* Assume that what we want the address of is in direct addressing space
+ if(pic16_debug_verbose) {
+ fprintf(stderr, "%s:%d %s symbol %s , codespace=%d\n",
+ __FILE__, __LINE__, __FUNCTION__, sym->name, IN_CODESPACE( SPEC_OCLS(sym->etype)));
+ }
+
+ /* Assume that what we want the address of is in data space
* since there is no stack on the PIC, yet! -- VR */
+ /* low */
+ pcop0 = PCOP(pic16_newpCodeOpImmd(sym->rname, 0, 0, IN_CODESPACE( SPEC_OCLS(sym->etype))));
- pcop0 = PCOP(pic16_newpCodeOpImmd(sym->rname, 0, 0, 0));
- pcop1 = PCOP(pic16_newpCodeOpImmd(sym->rname, 1, 0, 0));
-#if 0
- pcop0 = pic16_newpCodeOp(sym->rname, PO_IMMEDIATE);
- PCOI(pcop0)->offset = 0;
- PCOI(pcop0)->index = 0;
- pcop1 = pic16_newpCodeOp(sym->rname, PO_IMMEDIATE);
- PCOI(pcop1)->offset = 1;
- PCOI(pcop1)->index = 0;
-#endif
+ /* high */
+ pcop1 = PCOP(pic16_newpCodeOpImmd(sym->rname, 1, 0, IN_CODESPACE( SPEC_OCLS(sym->etype))));
+
+ /* upper */
+ pcop2 = PCOP(pic16_newpCodeOpImmd(sym->rname, 2, 0, IN_CODESPACE( SPEC_OCLS(sym->etype))));
+
+ if (size == 3) {
+ pic16_emitpcode(POC_MOVLW, pcop0);
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 0));
+ pic16_emitpcode(POC_MOVLW, pcop1);
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 1));
+ pic16_emitpcode(POC_MOVLW, pcop2);
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 2));
+ } else
if (size == 2) {
pic16_emitpcode(POC_MOVLW, pcop0);
pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0));
/*-----------------------------------------------------------------*/
static void genCast (iCode *ic)
{
- operand *result = IC_RESULT(ic);
- sym_link *ctype = operandType(IC_LEFT(ic));
- sym_link *rtype = operandType(IC_RIGHT(ic));
- operand *right = IC_RIGHT(ic);
- int size, offset ;
-
- DEBUGpic16_emitcode("; ***","%s %d",__FUNCTION__,__LINE__);
- /* if they are equivalent then do nothing */
- if (operandsEqu(IC_RESULT(ic),IC_RIGHT(ic)))
- return ;
-
- pic16_aopOp(right,ic,FALSE) ;
- pic16_aopOp(result,ic,FALSE);
-
- DEBUGpic16_pic16_AopType(__LINE__,NULL,right,result);
-
- /* if the result is a bit */
- if (AOP_TYPE(result) == AOP_CRY) {
- /* if the right size is a literal then
- we know what the value is */
- DEBUGpic16_emitcode("; ***","%s %d",__FUNCTION__,__LINE__);
- if (AOP_TYPE(right) == AOP_LIT) {
-
- pic16_emitpcode( ( ((int) operandLitValue(right)) ? POC_BSF : POC_BCF),
- pic16_popGet(AOP(result),0));
+ operand *result = IC_RESULT(ic);
+ sym_link *ctype = operandType(IC_LEFT(ic));
+ sym_link *rtype = operandType(IC_RIGHT(ic));
+ operand *right = IC_RIGHT(ic);
+ int size, offset ;
- if (((int) operandLitValue(right)))
- pic16_emitcode("bsf","(%s >> 3), (%s & 7)",
- AOP(result)->aopu.aop_dir,
- AOP(result)->aopu.aop_dir);
- else
- pic16_emitcode("bcf","(%s >> 3), (%s & 7)",
- AOP(result)->aopu.aop_dir,
- AOP(result)->aopu.aop_dir);
+ DEBUGpic16_emitcode("; ***","%s %d",__FUNCTION__,__LINE__);
+ /* if they are equivalent then do nothing */
+ if (operandsEqu(IC_RESULT(ic),IC_RIGHT(ic)))
+ return ;
- goto release;
- }
+ pic16_aopOp(right,ic,FALSE) ;
+ pic16_aopOp(result,ic,FALSE);
- /* the right is also a bit variable */
- if (AOP_TYPE(right) == AOP_CRY) {
+ DEBUGpic16_pic16_AopType(__LINE__,NULL,right,result);
- emitCLRC;
- pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(right),0));
+ /* if the result is a bit */
+ if (AOP_TYPE(result) == AOP_CRY) {
+
+ /* if the right size is a literal then
+ * we know what the value is */
+ DEBUGpic16_emitcode("; ***","%s %d",__FUNCTION__,__LINE__);
+
+ if (AOP_TYPE(right) == AOP_LIT) {
+ pic16_emitpcode( ( ((int) operandLitValue(right)) ? POC_BSF : POC_BCF),
+ pic16_popGet(AOP(result),0));
+
+ if (((int) operandLitValue(right)))
+ pic16_emitcode("bsf","(%s >> 3), (%s & 7)",
+ AOP(result)->aopu.aop_dir,
+ AOP(result)->aopu.aop_dir);
+ else
+ pic16_emitcode("bcf","(%s >> 3), (%s & 7)",
+ AOP(result)->aopu.aop_dir,
+ AOP(result)->aopu.aop_dir);
+ goto release;
+ }
- pic16_emitcode("clrc","");
- pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
- AOP(right)->aopu.aop_dir,
- AOP(right)->aopu.aop_dir);
- pic16_aopPut(AOP(result),"c",0);
- goto release ;
- }
+ /* the right is also a bit variable */
+ if (AOP_TYPE(right) == AOP_CRY) {
+ emitCLRC;
+ pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(right),0));
+
+ pic16_emitcode("clrc","");
+ pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
+ AOP(right)->aopu.aop_dir,
+ AOP(right)->aopu.aop_dir);
+ pic16_aopPut(AOP(result),"c",0);
+ goto release ;
+ }
- /* we need to or */
- if (AOP_TYPE(right) == AOP_REG) {
- pic16_emitpcode(POC_BCF, pic16_popGet(AOP(result),0));
- pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(right),0,FALSE,FALSE),0,0));
- pic16_emitpcode(POC_BSF, pic16_popGet(AOP(result),0));
+ /* we need to or */
+ if (AOP_TYPE(right) == AOP_REG) {
+ pic16_emitpcode(POC_BCF, pic16_popGet(AOP(result),0));
+ pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(right),0,FALSE,FALSE),0,0));
+ pic16_emitpcode(POC_BSF, pic16_popGet(AOP(result),0));
+ }
+ pic16_toBoolean(right);
+ pic16_aopPut(AOP(result),"a",0);
+ goto release ;
}
- pic16_toBoolean(right);
- pic16_aopPut(AOP(result),"a",0);
- goto release ;
- }
- if ((AOP_TYPE(right) == AOP_CRY) && (AOP_TYPE(result) == AOP_REG)) {
- int offset = 1;
- size = AOP_SIZE(result);
+ if ((AOP_TYPE(right) == AOP_CRY) && (AOP_TYPE(result) == AOP_REG)) {
+ int offset = 1;
- DEBUGpic16_emitcode("; ***","%s %d",__FUNCTION__,__LINE__);
+ size = AOP_SIZE(result);
- pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),0));
- pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(right),0));
- pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),0));
+ DEBUGpic16_emitcode("; ***","%s %d",__FUNCTION__,__LINE__);
- while (size--)
- pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offset++));
+ pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),0));
+ pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(right),0));
+ pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),0));
- goto release;
- }
+ while (size--)
+ pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offset++));
- /* if they are the same size : or less */
- if (AOP_SIZE(result) <= AOP_SIZE(right)) {
+ goto release;
+ }
- /* if they are in the same place */
- if (pic16_sameRegs(AOP(right),AOP(result)))
- goto release;
+ /* if they are the same size : or less */
+ if (AOP_SIZE(result) <= AOP_SIZE(right)) {
+
+ /* if they are in the same place */
+ if (pic16_sameRegs(AOP(right),AOP(result)))
+ goto release;
- DEBUGpic16_emitcode("; ***","%s %d",__FUNCTION__,__LINE__);
+ DEBUGpic16_emitcode("; ***","%s %d",__FUNCTION__,__LINE__);
#if 0
- if (IS_PTR_CONST(rtype))
+ if (IS_PTR_CONST(rtype))
#else
- if (IS_CODEPTR(rtype))
+ if (IS_CODEPTR(rtype))
#endif
- DEBUGpic16_emitcode ("; ***","%d - right is const pointer",__LINE__);
+ DEBUGpic16_emitcode ("; ***","%d - right is const pointer",__LINE__);
+
#if 0
- if (IS_PTR_CONST(operandType(IC_RESULT(ic))))
+ if (IS_PTR_CONST(operandType(IC_RESULT(ic))))
#else
- if (IS_CODEPTR(operandType(IC_RESULT(ic))))
+ if (IS_CODEPTR(operandType(IC_RESULT(ic))))
#endif
- DEBUGpic16_emitcode ("; ***","%d - result is const pointer",__LINE__);
-
- if ((AOP_TYPE(right) == AOP_PCODE) && AOP(right)->aopu.pcop->type == PO_IMMEDIATE) {
- pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),0));
- pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0));
- pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),1));
- pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),1));
- if(AOP_SIZE(result) <2)
- fprintf(stderr,"%d -- result is not big enough to hold a ptr\n",__LINE__);
-
- } else {
-
- /* if they in different places then copy */
- size = AOP_SIZE(result);
- offset = 0 ;
- while (size--) {
- pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),offset));
- pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset));
-
- //pic16_aopPut(AOP(result),
- // pic16_aopGet(AOP(right),offset,FALSE,FALSE),
- // offset);
-
- offset++;
- }
- }
- goto release;
- }
+ DEBUGpic16_emitcode ("; ***","%d - result is const pointer",__LINE__);
+#if 0
+ if(AOP_TYPE(right) == AOP_IMMD) {
+ pCodeOp *pcop0, *pcop1, *pcop2;
+ symbol *sym = OP_SYMBOL( right );
+
+ size = AOP_SIZE(result);
+ /* low */
+ pcop0 = PCOP(pic16_newpCodeOpImmd(sym->rname, 0, 0, IN_CODESPACE( SPEC_OCLS(sym->etype))));
+ /* high */
+ pcop1 = PCOP(pic16_newpCodeOpImmd(sym->rname, 1, 0, IN_CODESPACE( SPEC_OCLS(sym->etype))));
+ /* upper */
+ pcop2 = PCOP(pic16_newpCodeOpImmd(sym->rname, 2, 0, IN_CODESPACE( SPEC_OCLS(sym->etype))));
+
+ if (size == 3) {
+ pic16_emitpcode(POC_MOVLW, pcop0);
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 0));
+ pic16_emitpcode(POC_MOVLW, pcop1);
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 1));
+ pic16_emitpcode(POC_MOVLW, pcop2);
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 2));
+ } else
+ if (size == 2) {
+ pic16_emitpcode(POC_MOVLW, pcop0);
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0));
+ pic16_emitpcode(POC_MOVLW, pcop1);
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),1));
+ } else {
+ pic16_emitpcode(POC_MOVLW, pcop0);
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0));
+ }
+ } else
+#endif
+ if ((AOP_TYPE(right) == AOP_PCODE) && AOP(right)->aopu.pcop->type == PO_IMMEDIATE) {
+ pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),0));
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0));
+ pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),1));
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),1));
+ if(AOP_SIZE(result) <2)
+ fprintf(stderr,"%d -- result is not big enough to hold a ptr\n",__LINE__);
+ } else {
+ /* if they in different places then copy */
+ size = AOP_SIZE(result);
+ offset = 0 ;
+ while (size--) {
+ pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),offset));
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset));
+ offset++;
+ }
+ }
+ goto release;
+ }
- /* if the result is of type pointer */
- if (IS_PTR(ctype)) {
+ /* if the result is of type pointer */
+ if (IS_PTR(ctype)) {
+ int p_type;
+ sym_link *type = operandType(right);
+ sym_link *etype = getSpec(type);
- int p_type;
- sym_link *type = operandType(right);
- sym_link *etype = getSpec(type);
- DEBUGpic16_emitcode("; ***","%s %d - pointer cast",__FUNCTION__,__LINE__);
+ DEBUGpic16_emitcode("; ***","%s %d - pointer cast",__FUNCTION__,__LINE__);
- /* pointer to generic pointer */
- if (IS_GENPTR(ctype)) {
- char *l = zero;
+ /* pointer to generic pointer */
+ if (IS_GENPTR(ctype)) {
+ char *l = zero;
- if (IS_PTR(type))
- p_type = DCL_TYPE(type);
- else {
+ if (IS_PTR(type))
+ p_type = DCL_TYPE(type);
+ else {
/* we have to go by the storage class */
p_type = PTR_TYPE(SPEC_OCLS(etype));
while (size--)
pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offset++));
} else {
- /* we need to extend the sign :{ */
+ /* we need to extend the sign :( */
if(size == 1) {
/* Save one instruction of casting char to int */
ic->level,ic->block);
_G.debugLine = 0;
}
- pic16_addpCode2pBlock(pb,
- pic16_newpCodeCSource(ic->lineno,
- ic->filename,
- printCLine(ic->filename, ic->lineno)));
+
+ if(!options.noCcodeInAsm) {
+ pic16_addpCode2pBlock(pb,
+ pic16_newpCodeCSource(ic->lineno, ic->filename,
+ printCLine(ic->filename, ic->lineno)));
+ }
cln = ic->lineno ;
}
+
+ if(options.iCodeInAsm) {
+ /* insert here code to print iCode as comment */
+ }
+
/* if the result is marked as
spilt and rematerializable or code for
this has already been generated then
projects / fw / sdcc / blobdiff