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 *);
+void pic16_genMult16X16_16(operand *, operand *, operand *);
+void pic16_genMult32X32_32(operand *, operand *, operand *);
pCode *pic16_AssembleLine(char *line, int peeps);
extern void pic16_printpBlock(FILE *of, pBlock *pb);
static asmop *newAsmop (short type);
const char *pic16_AopType(short type);
static iCode *ifxForOp ( operand *op, iCode *ic );
+void pic16_pushpCodeOp(pCodeOp *pcop);
+void pic16_poppCodeOp(pCodeOp *pcop);
+
+
+
#define BYTEofLONG(l,b) ( (l>> (b<<3)) & 0xff)
/* this is the down and dirty file with all kinds of
static char *one = "#0x01";
static char *spname = "sp";
+
+/*
+ * Function return value policy (MSB-->LSB):
+ * 8 bits -> WREG
+ * 16 bits -> PRODL:WREG
+ * 24 bits -> PRODH:PRODL:WREG
+ * 32 bits -> FSR0L:PRODH:PRODL:WREG
+ * >32 bits -> on stack, and FSR0 points to the beginning
+ *
+ */
+
+
char *fReturnpic16[] = {"temp1","temp2","temp3","temp4" };
//char *fReturn390[] = {"dpl","dph","dpx", "b","a" };
unsigned pic16_fReturnSizePic = 4; /* shared with ralloc.c */
static char **fReturn = fReturnpic16;
-static char *accUse[] = {"a","b"};
+static char *accUse[] = {"WREG"};
//static short rbank = -1;
short debugLine;
short nRegsSaved;
set *sendSet;
+ int interruptvector;
} _G;
/* Resolved ifx structure. This structure stores information
void DEBUGpic16_pic16_AopType(int line_no, operand *left, operand *right, operand *result)
{
-
DEBUGpic16_emitcode ("; ","line = %d result %s=%s, left %s=%s, right %s=%s, size = %d",
line_no,
((result) ? pic16_AopType(AOP_TYPE(result)) : "-"),
((right) ? pic16_AopType(AOP_TYPE(right)) : "-"),
((right) ? pic16_aopGet(AOP(right),0,FALSE,FALSE) : "-"),
((result) ? AOP_SIZE(result) : 0));
-
}
void DEBUGpic16_pic16_AopTypeSign(int line_no, operand *left, operand *right, operand *result)
}
-void pic16_emitcomment (char *fmt, ...)
+void pic16_emitpcomment (char *fmt, ...)
{
va_list ap;
char lb[INITIAL_INLINEASM];
char *lbp = lb;
- if(!pic16_debug_verbose)
- return;
-
va_start(ap,fmt);
lb[0] = ';';
/*-----------------------------------------------------------------*/
static void resolveIfx(resolvedIfx *resIfx, iCode *ifx)
{
+
+ DEBUGpic16_emitcode("; ***","%s %d",__FUNCTION__,__LINE__);
+
if(!resIfx)
return;
- // DEBUGpic16_emitcode("; ***","%s %d",__FUNCTION__,__LINE__);
resIfx->condition = 1; /* assume that the ifx is true */
resIfx->generated = 0; /* indicate that the ifx has not been used */
if(!ifx) {
resIfx->lbl = newiTempLabel(NULL); /* oops, there is no ifx. so create a label */
-/*
+
+#if 1
DEBUGpic16_emitcode("; ***","%s %d null ifx creating new label key =%d",
__FUNCTION__,__LINE__,resIfx->lbl->key);
-*/
+#endif
+
} else {
if(IC_TRUE(ifx)) {
resIfx->lbl = IC_TRUE(ifx);
*/
}
- // DEBUGpic16_emitcode("; ***","%s lbl->key=%d, (lab offset=%d)",__FUNCTION__,resIfx->lbl->key,labelOffset);
+ DEBUGpic16_emitcode("; ***","%s lbl->key=%d, (lab offset=%d)",__FUNCTION__,resIfx->lbl->key,labelOffset);
}
#if 0
return sym->aop;
}
+ /* if symbol was initially placed onStack then we must re-place it
+ * to direct memory, since pic16 does not have a specific stack */
+ if(sym->onStack) {
+ sym->onStack = 0;
+ SPEC_OCLS( sym->etype ) = data;
+ space = data;
+ }
+
+
+#if 1
/* assign depending on the storage class */
/* if it is on the stack or indirectly addressable */
/* space we need to assign either r0 or r1 to it */
if ((sym->onStack && !options.stack10bit) || sym->iaccess) {
+
+ DEBUGpic16_emitcode("; ***", "%s:%d sym->onStack:%d || sym->iaccess:%d",
+ __FUNCTION__, __LINE__, sym->onStack, sym->iaccess);
+
sym->aop = aop = newAsmop(0);
aop->aopu.aop_ptr = getFreePtr(ic,&aop,result);
aop->size = getSize(sym->type);
aop->aopu.aop_stk = sym->stack;
return aop;
}
-
+#endif
+
if (sym->onStack && options.stack10bit)
{
/* It's on the 10 bit stack, which is located in
sym->aop = aop = newAsmop (AOP_CRY);
aop->aopu.aop_dir = sym->rname ;
aop->size = getSize(sym->type);
- //DEBUGpic16_emitcode(";","%d sym->rname = %s, size = %d",__LINE__,sym->rname,aop->size);
+ DEBUGpic16_emitcode(";","%d sym->rname = %s, size = %d",__LINE__,sym->rname,aop->size);
return aop;
}
/* if it is in direct space */
aop->aopu.aop_dir = sym->rname ;
aop->size = getSize(sym->type);
DEBUGpic16_emitcode(";","%d sym->rname = %s, size = %d",__LINE__,sym->rname,aop->size);
+ pic16_allocDirReg( IC_LEFT(ic) );
return aop;
}
+#if 0 // patch 14
/* special case for a function */
if (IS_FUNC(sym->type)) {
sym->aop = aop = newAsmop(AOP_IMMD);
DEBUGpic16_emitcode(";","%d size = %d, name =%s",__LINE__,aop->size,sym->rname);
return aop;
}
+#endif // patch 14
/* only remaining is far space */
/* in which case DPTR gets the address */
sym->aop = aop = newAsmop(AOP_PCODE);
- aop->aopu.pcop = pic16_popGetImmd(sym->rname,0,0);
- PCOI(aop->aopu.pcop)->_const = IN_CODESPACE(space);
- PCOI(aop->aopu.pcop)->index = 0;
+/* change the next if to 1 to revert to good old immediate code */
+ if(IN_CODESPACE(space)) {
+ aop->aopu.pcop = pic16_popGetImmd(sym->rname, 0, 0);
+ PCOI(aop->aopu.pcop)->_const = IN_CODESPACE(space);
+ PCOI(aop->aopu.pcop)->index = 0;
+ } else {
+ /* try to allocate via direct register */
+ aop->aopu.pcop = pic16_popRegFromString(sym->rname, getSize(sym->type), sym->offset); // Patch 8
+// aop->size = getSize( sym->type );
+ }
- DEBUGpic16_emitcode(";","%d: rname %s, val %d, const = %d",
- __LINE__,sym->rname, 0, PCOI(aop->aopu.pcop)->_const);
+ DEBUGpic16_emitcode(";","%d: rname %s, val %d, const = %d",
+ __LINE__,sym->rname, 0, PCOI(aop->aopu.pcop)->_const);
- pic16_allocDirReg (IC_LEFT(ic));
+#if 0
+ if(!pic16_allocDirReg (IC_LEFT(ic)))
+ return NULL;
+#endif
- aop->size = FPTRSIZE;
-/*
- DEBUGpic16_emitcode(";","%d size = %d, name =%s",__LINE__,aop->size,sym->rname);
- sym->aop = aop = newAsmop(AOP_DPTR);
- pic16_emitcode ("mov","dptr,#%s", sym->rname);
- aop->size = getSize(sym->type);
+ if(IN_DIRSPACE( space ))
+ aop->size = PTRSIZE;
+ else if(IN_CODESPACE( space ))
+ aop->size = FPTRSIZE;
+ else if(IC_LEFT(ic)) aop->size = AOP_SIZE( IC_LEFT(ic) );
+ else if(IC_RIGHT(ic)) aop->size = AOP_SIZE( IC_RIGHT(ic) );
+ else {
+ assert( 0 );
+ }
DEBUGpic16_emitcode(";","%d size = %d",__LINE__,aop->size);
-*/
/* if it is in code space */
if (IN_CODESPACE(space))
static asmop *aopForRemat (operand *op) // x symbol *sym)
{
symbol *sym = OP_SYMBOL(op);
- iCode *ic = NULL;
+ iCode *ic = NULL, *oldic;
asmop *aop = newAsmop(AOP_PCODE);
int val = 0;
int offset = 0;
+ int viaimmd=0;
- ic = sym->rematiCode;
- DEBUGpic16_emitcode(";","%s %d",__FUNCTION__,__LINE__);
- if(IS_OP_POINTER(op)) {
- DEBUGpic16_emitcode(";","%s %d IS_OP_POINTER",__FUNCTION__,__LINE__);
- }
- for (;;) {
- if (ic->op == '+') {
- val += (int) operandLitValue(IC_RIGHT(ic));
- } else if (ic->op == '-') {
- val -= (int) operandLitValue(IC_RIGHT(ic));
- } else
- break;
+ ic = sym->rematiCode;
+
+ DEBUGpic16_emitcode(";","%s %d",__FUNCTION__,__LINE__);
- ic = OP_SYMBOL(IC_LEFT(ic))->rematiCode;
- }
+ if(IS_OP_POINTER(op)) {
+ DEBUGpic16_emitcode(";","%s %d IS_OP_POINTER",__FUNCTION__,__LINE__);
+ }
+
+ for (;;) {
+ oldic = ic;
+
+// pic16_emitpcomment("ic: %s\n", printILine(ic));
+
+ if (ic->op == '+') {
+ val += (int) operandLitValue(IC_RIGHT(ic));
+ } else if (ic->op == '-') {
+ val -= (int) operandLitValue(IC_RIGHT(ic));
+ } else
+ break;
+
+ ic = OP_SYMBOL(IC_LEFT(ic))->rematiCode;
+ }
+
+ offset = OP_SYMBOL(IC_LEFT(ic))->offset;
+
+ if(!op->isaddr)viaimmd++; else viaimmd=0;
+
+/* set the following if to 1 to revert to good old immediate code */
+ if(IN_CODESPACE( SPEC_OCLS( OP_SYM_ETYPE(op)))
+ || viaimmd) {
+
+ pic16_emitpcomment("%s:%d immediate", __FILE__, __LINE__);
+
+ aop->aopu.pcop = pic16_popGetImmd(OP_SYMBOL(IC_LEFT(ic))->rname, 0, val);
- offset = OP_SYMBOL(IC_LEFT(ic))->offset;
- aop->aopu.pcop = pic16_popGetImmd(OP_SYMBOL(IC_LEFT(ic))->rname,0,val);
#if 0
- PCOI(aop->aopu.pcop)->_const = IS_PTR_CONST(operandType(op));
+ PCOI(aop->aopu.pcop)->_const = IS_PTR_CONST(operandType(op));
#else
- PCOI(aop->aopu.pcop)->_const = IS_CODEPTR(operandType(op));
+ PCOI(aop->aopu.pcop)->_const = IS_CODEPTR(operandType(op));
#endif
- PCOI(aop->aopu.pcop)->index = val;
- DEBUGpic16_emitcode(";","%d: rname %s, val %d, const = %d",
- __LINE__,OP_SYMBOL(IC_LEFT(ic))->rname,
+ PCOI(aop->aopu.pcop)->index = val;
+ } else {
+ pic16_emitpcomment("%s:%d dir", __FILE__, __LINE__);
+
+ aop->aopu.pcop = pic16_popRegFromString(OP_SYMBOL(IC_LEFT(ic))->rname, getSize( OP_SYMBOL( IC_LEFT(ic))->type), val);
+// aop->size = AOP_SIZE( IC_LEFT(ic) );
+ }
+
+
+ DEBUGpic16_emitcode(";","%d: rname %s, val %d, const = %d",
+ __LINE__,OP_SYMBOL(IC_LEFT(ic))->rname,
#if 0
- val, IS_PTR_CONST(operandType(op)));
+ val, IS_PTR_CONST(operandType(op)));
#else
- val, IS_CODEPTR(operandType(op)));
+ val, IS_CODEPTR(operandType(op)));
#endif
- // DEBUGpic16_emitcode(";","aop type %s",pic16_AopType(AOP_TYPE(IC_LEFT(ic))));
+// DEBUGpic16_emitcode(";","aop type %s",pic16_AopType(AOP_TYPE(IC_LEFT(ic))));
+
+ pic16_allocDirReg (IC_LEFT(ic));
- pic16_allocDirReg (IC_LEFT(ic));
+ if(IN_CODESPACE( SPEC_OCLS( OP_SYM_ETYPE(op)) ))
+ aop->code = 1;
return aop;
}
if (!op)
return ;
-// DEBUGpic16_emitcode(";","%d",__LINE__);
+// DEBUGpic16_emitcode(";","%s %d",__FUNCTION__, __LINE__);
/* if this a literal */
if (IS_OP_LITERAL(op)) {
return;
}
+#if 1
if (sym->accuse) {
int i;
aop = op->aop = sym->aop = newAsmop(AOP_ACC);
aop->size = getSize(sym->type);
- for ( i = 0 ; i < 2 ; i++ )
- aop->aopu.aop_str[i] = accUse[i];
+ for ( i = 0 ; i < 1 ; i++ ) {
+ aop->aopu.aop_str[i] = accUse[i];
+// aop->aopu.pcop = pic16_popRegFromString("WREG", aop->size, sym->usl.spillLoc->offset);
+ }
+ fprintf(stderr, "%s:%d allocating AOP_ACC for sym= %s\n", __FILE__, __LINE__, sym->name);
DEBUGpic16_emitcode(";","%d size=%d",__LINE__,aop->size);
return;
}
+#endif
+#if 1
if (sym->ruonly ) {
/*
sym->aop = op->aop = aop = newAsmop(AOP_PCODE);
DEBUGpic16_emitcode(";","%d",__LINE__);
return;
}
-
+#endif
/* else spill location */
if (sym->usl.spillLoc && getSize(sym->type) != getSize(sym->usl.spillLoc->type)) {
/* force a new aop if sizes differ */
char *rs;
//DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- /* offset is greater than
- size then zero */
+
+ /* offset is greater than size then zero */
if (offset > (aop->size - 1) &&
aop->type != AOP_LIT)
return zero;
case AOP_ACC:
DEBUGpic16_emitcode(";Warning -pic port ignoring get(AOP_ACC)","%d",__LINE__);
- return "AOP_accumulator_bug";
+// fprintf(stderr, "%s:%d Warning -pic port ignoring get(AOP_ACC)\n",__FILE__, __LINE__);
+// assert( 0 );
+ return aop->aopu.aop_str[offset]; //->"AOP_accumulator_bug";
case AOP_LIT:
sprintf(s,"0x%02x", pic16aopLiteral (aop->aopu.aop_lit,offset));
/*-----------------------------------------------------------------*/
pCodeOp *pic16_popGetTempReg(void)
{
-
pCodeOp *pcop;
+ symbol *cfunc;
- pcop = pic16_newpCodeOp(NULL, PO_GPR_TEMP);
- if(pcop && pcop->type == PO_GPR_TEMP && PCOR(pcop)->r) {
- PCOR(pcop)->r->wasUsed=1;
- PCOR(pcop)->r->isFree=0;
- }
+// DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+
+ cfunc = currFunc;
+ currFunc = NULL;
+
+ pcop = pic16_newpCodeOp(NULL, PO_GPR_TEMP);
+ if(pcop && pcop->type == PO_GPR_TEMP && PCOR(pcop)->r) {
+ PCOR(pcop)->r->wasUsed=1;
+ PCOR(pcop)->r->isFree=0;
+
+ /* push value on stack */
+ pic16_pushpCodeOp( pic16_pCodeOpCopy(pcop) );
+ }
+
+ currFunc = cfunc;
return pcop;
}
/*-----------------------------------------------------------------*/
void pic16_popReleaseTempReg(pCodeOp *pcop)
{
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- if(pcop && pcop->type == PO_GPR_TEMP && PCOR(pcop)->r)
- PCOR(pcop)->r->isFree = 1;
-
+ if(pcop && pcop->type == PO_GPR_TEMP && PCOR(pcop)->r) {
+ PCOR(pcop)->r->isFree = 1;
+
+ pic16_poppCodeOp( pic16_pCodeOpCopy(pcop) );
+ }
}
/*-----------------------------------------------------------------*/
/* pic16_popGetLabel - create a new pCodeOp of type PO_LABEL */
pcor->rIdx = pc->rIdx;
pcor->r->wasUsed=1;
- //DEBUGpic16_emitcode ("; ***","%s , copying %s, rIdx=%d",__FUNCTION__,pc->pcop.name,pc->rIdx);
+// DEBUGpic16_emitcode ("; ***","%s , copying %s, rIdx=%d",__FUNCTION__,pc->pcop.name,pc->rIdx);
return PCOP(pcor);
}
/*-----------------------------------------------------------------*/
pCodeOp *pic16_popGetImmd(char *name, unsigned int offset, int index)
{
-
return pic16_newpCodeOpImmd(name, offset,index, 0);
}
pCodeOp *pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
pcop->type = PO_DIR;
- DEBUGpic16_emitcode(";","%d %s %s",__LINE__, __FUNCTION__, str);
-// fprintf(stderr, "%s:%d: register name = %s pos = %d/%d\n", __FUNCTION__, __LINE__, str, offset, size);
+ DEBUGpic16_emitcode(";","%d %s %s %d/%d",__LINE__, __FUNCTION__, str, size, offset); // patch 14
+ // fprintf(stderr, "%s:%d: register name = %s pos = %d/%d\n", __FUNCTION__, __LINE__, str, offset, size);
if(!str)
str = "BAD_STRING";
//fprintf(stderr, "allocating new register -> %s\n", str);
- DEBUGpic16_emitcode(";","%d %s offset=%d - had to alloc by reg name",__LINE__,pcop->name,offset);
+// DEBUGpic16_emitcode(";","%d %s size= %d offset=%d - had to alloc by reg name",__LINE__,pcop->name,size,offset);
} else {
- DEBUGpic16_emitcode(";","%d %s offset=%d",__LINE__,pcop->name,offset);
+// DEBUGpic16_emitcode(";","%d %s size= %d offset=%d",__LINE__,pcop->name,size,offset);
}
PCOR(pcop)->instance = offset;
/*--------------------------------------------------------------------------------.-*/
pCodeOp *pic16_popGet2p(pCodeOp *src, pCodeOp *dst)
{
- pCodeOpReg2 *pcop2;
+ pCodeOpReg2 *pcop2;
- pcop2 = (pCodeOpReg2 *) src;
+ pcop2 = (pCodeOpReg2 *)src;
pcop2->pcop2 = dst;
return PCOP(pcop2);
pCodeOp *pic16_popGet (asmop *aop, int offset) //, bool bit16, bool dname)
{
//char *s = buffer ;
- //char *rs;
-
- pCodeOp *pcop;
+ char *rs;
+ pCodeOp *pcop;
//DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
/* offset is greater than
size then zero */
- if (offset > (aop->size - 1) &&
- aop->type != AOP_LIT)
- return NULL; //zero;
+// if (offset > (aop->size - 1) &&
+// aop->type != AOP_LIT)
+// return NULL; //zero;
/* depending on type */
switch (aop->type) {
case AOP_R1:
case AOP_DPTR:
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));
+ assert( 0 );
return NULL;
-
+
+
+
case AOP_IMMD:
DEBUGpic16_emitcode(";","%d\tAOP_IMMD",__LINE__);
return pic16_popGetImmd(aop->aopu.aop_immd,offset,0);
+ case AOP_ACC:
+ {
+ int rIdx = IDX_WREG; //aop->aopu.aop_reg[offset]->rIdx;
+
+ fprintf(stderr, "%s:%d returning register AOP_ACC %s\n", __FILE__, __LINE__, aop->aopu.aop_str[offset]);
+
+ DEBUGpic16_emitcode(";","%d\tAOP_ACC", __LINE__);
+
+ pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
+ PCOR(pcop)->rIdx = rIdx;
+ PCOR(pcop)->r = pic16_typeRegWithIdx(rIdx, REG_SFR, 1); // pic16_regWithIdx(rIdx);
+ PCOR(pcop)->r->wasUsed=1;
+ PCOR(pcop)->r->isFree=0;
+
+ PCOR(pcop)->instance = offset;
+ pcop->type = PCOR(pcop)->r->pc_type;
+// rs = aop->aopu.aop_reg[offset]->name;
+// DEBUGpic16_emitcode(";","%d register idx = %d name =%s",__LINE__,rIdx,rs);
+ return pcop;
+
+
+// return pic16_popRegFromString(aop->aopu.aop_str[offset], aop->size, offset);
+// return pic16_newpCodeOpRegFromStr(aop->aopu.aop_str[offset]);
+
+// assert( 0 );
+ }
+
case AOP_DIR:
DEBUGpic16_emitcode(";","%d\tAOP_DIR", __LINE__);
return pic16_popRegFromString(aop->aopu.aop_dir, aop->size, offset);
int rIdx = aop->aopu.aop_reg[offset]->rIdx;
DEBUGpic16_emitcode(";","%d\tAOP_REG", __LINE__);
+
pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
PCOR(pcop)->rIdx = rIdx;
PCOR(pcop)->r = pic16_regWithIdx(rIdx);
PCOR(pcop)->instance = offset;
pcop->type = PCOR(pcop)->r->pc_type;
- //rs = aop->aopu.aop_reg[offset]->name;
- //DEBUGpic16_emitcode(";","%d regiser idx = %d name =%s",__LINE__,rIdx,rs);
+ rs = aop->aopu.aop_reg[offset]->name;
+ DEBUGpic16_emitcode(";","%d regiser idx = %d name =%s",__LINE__,rIdx,rs);
return pcop;
}
*/
case AOP_PCODE:
- DEBUGpic16_emitcode(";","pic16_popGet AOP_PCODE (%s) %d %s",pic16_pCodeOpType(aop->aopu.pcop),
+ DEBUGpic16_emitcode(";","pic16_popGet AOP_PCODE (%s) %d %s offset %d",pic16_pCodeOpType(aop->aopu.pcop),
__LINE__,
- ((aop->aopu.pcop->name)? (aop->aopu.pcop->name) : "no name"));
+ ((aop->aopu.pcop->name)? (aop->aopu.pcop->name) : "no name"), offset);
pcop = pic16_pCodeOpCopy(aop->aopu.pcop);
+#if 1
+ switch( aop->aopu.pcop->type ) {
+ case PO_DIR: PCOR(pcop)->instance += offset; break; // patch 8
+ case PO_IMMEDIATE: PCOI(pcop)->offset = offset; break;
+ default:
+ assert( 0 ); /* should never reach here */;
+ }
+#else
PCOI(pcop)->offset = offset;
+#endif
return pcop;
}
}
-void pic16_pushpCodeOpReg(pCodeOpReg *pcop)
+/* push pcop into stack */
+void pic16_pushpCodeOp(pCodeOp *pcop)
{
- pic16_emitpcode(POC_MOVFF, pic16_popCombine2(pcop, &pic16_pc_postdec1, 0));
+// DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pcop, pic16_popCopyReg(&pic16_pc_postdec1)));
}
-void pic16_poppCodeOpReg(pCodeOpReg *pcop)
+/* pop pcop from stack */
+void pic16_poppCodeOp(pCodeOp *pcop)
{
- pic16_emitpcode(POC_MOVFF, pic16_popCombine2(&pic16_pc_preinc1, pcop, 0));
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_preinc1), pcop));
}
}
-
+#if 0 // patch 14
/*-----------------------------------------------------------------*/
/* pushSide - */
/*-----------------------------------------------------------------*/
static void pushSide(operand * oper, int size)
{
-#if 0
int offset = 0;
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
while (size--) {
} else
pic16_emitcode("push","%s",l);
}
-#endif
}
+#endif // patch 14
+
+void pic16_loadFromReturn(operand *op, int offset, pCodeOp *src)
+{
+// (AOP(left)->aopu.pcop->type == PO_DIR)?
+
+ if(AOP(op)->aopu.pcop->type == PO_IMMEDIATE) {
+ pic16_emitpcode(POC_MOVFW, src);
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(op), offset));
+ } else {
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
+ src, pic16_popGet(AOP(op), offset)));
+ }
+}
+
/*-----------------------------------------------------------------*/
-/* assignResultValue - */
+/* assignResultValue - assign results to oper, rescall==1 is */
+/* called from genCall() or genPCall() */
/*-----------------------------------------------------------------*/
-static void assignResultValue(operand * oper)
+static void assignResultValue(operand * oper, int rescall)
{
int size = AOP_SIZE(oper);
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ DEBUGpic16_emitcode ("; ***","%s %d rescall:%d size:%d",__FUNCTION__,__LINE__,rescall,size); // patch 14
DEBUGpic16_pic16_AopType(__LINE__,oper,NULL,NULL);
- if(!GpsuedoStkPtr) {
-// DEBUGpic16_emitcode("; ", "pop %d", GpsuedoStkPtr);
- /* The last byte in the assignment is in W */
- size--;
- pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(oper),size));
- GpsuedoStkPtr++;
- }
-
- while (size--) {
-// DEBUGpic16_emitcode("; ", "POC_MOVLW %d", GpsuedoStkPtr);
-// DEBUGpic16_emitcode("; ", "POC_MOVFW PLUSW2");
+ if(rescall) {
+ /* assign result from a call/pcall function() */
-#if STACK_SUPPORT
- if(USE_STACK) {
- popaopidx(AOP(oper), size, GpsuedoStkPtr);
+ /* function results are stored in a special order,
+ * see top of file with Function return policy, or manual */
+
+ if(size <= 4) {
+ /* 8-bits, result in WREG */
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(oper), 0));
+
+ if(size>1) {
+ /* 16-bits, result in PRODL:WREG */
+ pic16_loadFromReturn(oper, 1, pic16_popCopyReg(&pic16_pc_prodl));
+ }
+
+ if(size>2) {
+ /* 24-bits, result in PRODH:PRODL:WREG */
+ pic16_loadFromReturn(oper, 2, pic16_popCopyReg(&pic16_pc_prodh)); // patch 14
+ }
+
+ if(size>3) {
+ /* 32-bits, result in FSR0L:PRODH:PRODL:WREG */
+ pic16_loadFromReturn(oper, 3, pic16_popCopyReg(&pic16_pc_fsr0l)); // patch14
+ }
} else {
- pic16_emitpcode(POC_MOVFW, pic16_popRegFromIdx(GpsuedoStkPtr-1 + pic16_Gstack_base_addr));
+ /* >32-bits, result on stack, and FSR0 points to beginning.
+ * Fix stack when done */
+
+ while (size--) {
+// DEBUGpic16_emitcode("; ", "POC_MOVLW %d", GpsuedoStkPtr);
+// DEBUGpic16_emitcode("; ", "POC_MOVFW PLUSW2");
+
+ popaopidx(AOP(oper), size, GpsuedoStkPtr);
+ GpsuedoStkPtr++;
+ }
+
+ /* fix stack */
+ pic16_emitpcode(POC_MOVLW, pic16_popGetLit( AOP_SIZE(oper) ));
+ pic16_emitpcode(POC_ADDWF, pic16_popCopyReg( &pic16_pc_fsr1l ));
+ if(STACK_MODEL_LARGE) {
+ emitSKPNC;
+ pic16_emitpcode(POC_INCF, pic16_popCopyReg( &pic16_pc_fsr1h ));
+ }
+ }
+ } else {
+ if(!GpsuedoStkPtr) {
+// DEBUGpic16_emitcode("; ", "pop %d", GpsuedoStkPtr);
+ /* The last byte in the assignment is in W */
+ size--;
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(oper),size));
+ GpsuedoStkPtr++;
}
-#else
- pic16_emitpcode(POC_MOVFW, pic16_popRegFromIdx(GpsuedoStkPtr-1 + pic16_Gstack_base_addr));
-#endif /* STACK_SUPPORT */
- GpsuedoStkPtr++;
+ while (size--) {
+// DEBUGpic16_emitcode("; ", "POC_MOVLW %d", GpsuedoStkPtr);
+// DEBUGpic16_emitcode("; ", "POC_MOVFW PLUSW2");
+
+ popaopidx(AOP(oper), size, GpsuedoStkPtr);
+ GpsuedoStkPtr++;
+
+#if 0
#if STACK_SUPPORT
if(!USE_STACK)
pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(oper),size));
#else
pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(oper),size));
+#endif
#endif
+ }
}
}
* register. The last byte of the last parameter is
* passed in W. */
-#if STACK_SUPPORT
- if(USE_STACK) {
- pushw();
- --psuedoStkPtr; // sanity check
- } else {
- pic16_emitpcode(POC_MOVWF, pic16_popRegFromIdx(--psuedoStkPtr + pic16_Gstack_base_addr));
- }
-#else
- pic16_emitpcode(POC_MOVWF, pic16_popRegFromIdx(--psuedoStkPtr + pic16_Gstack_base_addr));
-#endif /* STACK_SUPPORT */
+ pushw();
+ --psuedoStkPtr; // sanity check
}
firstTimeThruLoop=0;
pic16_aopOp(IC_RESULT(ic),ic,FALSE);
_G.accInUse--;
- assignResultValue(IC_RESULT(ic));
+ assignResultValue(IC_RESULT(ic), 1);
DEBUGpic16_emitcode ("; ","%d left %s",__LINE__,
pic16_AopType(AOP_TYPE(IC_RESULT(ic))));
pic16_freeAsmop(IC_RESULT(ic),NULL, ic,TRUE);
}
-#if STACK_SUPPORT
- if(USE_STACK && stackParms>0) {
+ if(stackParms>0) {
pic16_emitpcode(POC_MOVLW, pic16_popGetLit(stackParms));
pic16_emitpcode(POC_ADDWF, pic16_popCopyReg( &pic16_pc_fsr1l ));
if(STACK_MODEL_LARGE) {
pic16_emitpcode(POC_INCF, pic16_popCopyReg( &pic16_pc_fsr1h ));
}
}
-#endif
/* adjust the stack for parameters if required */
// fprintf(stderr, "%s:%d: %s ic->parmBytes= %d\n", __FILE__, __LINE__, OP_SYMBOL(IC_LEFT(ic))->name, ic->parmBytes);
pic16_emitcode("dec","%s",spname);
}
+#if 0
/* if register bank was saved then pop them */
if (ic->bankSaved)
unsaverbank(FUNC_REGBANK(dtype),ic,TRUE);
/* if we hade saved some registers then unsave them */
if (ic->regsSaved && !IFFUNC_CALLEESAVES(dtype))
unsaveRegisters (ic);
+#endif
}
-/*-----------------------------------------------------------------*/
+
+
+/*-----------------------------------------------------------------*/ // patch 14
/* genPcall - generates a call by pointer statement */
/*-----------------------------------------------------------------*/
+
+// new version, created from genCall
+
static void genPcall (iCode *ic)
{
- sym_link *dtype;
- symbol *rlbl = newiTempLabel(NULL);
-
+ sym_link *dtype;
+ int stackParms=0;
+ symbol *retlbl = newiTempLabel(NULL);
+ pCodeOp *pcop_lbl = pic16_popGetLabel(retlbl->key);
+
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- /* if caller saves & we have not saved then */
- if (!ic->regsSaved)
- saveRegisters(ic);
+ /* if caller saves & we have not saved then */
+ if (!ic->regsSaved)
+ saveRegisters(ic);
- /* if we are calling a function that is not using
- the same register bank then we need to save the
- destination registers on the stack */
- dtype = operandType(IC_LEFT(ic));
- if (currFunc && dtype &&
- IFFUNC_ISISR(currFunc->type) &&
- (FUNC_REGBANK(currFunc->type) != FUNC_REGBANK(dtype)))
- saverbank(FUNC_REGBANK(dtype),ic,TRUE);
+ /* if we are calling a function that is not using
+ * the same register bank then we need to save the
+ * destination registers on the stack */
+ dtype = operandType(IC_LEFT(ic));
+ if (currFunc && dtype &&
+ (FUNC_REGBANK(currFunc->type) != FUNC_REGBANK(dtype)) &&
+ IFFUNC_ISISR(currFunc->type) &&
+ !ic->bankSaved)
+ saverbank(FUNC_REGBANK(dtype),ic,TRUE);
- /* push the return address on to the stack */
- pic16_emitcode("mov","a,#%05d_DS_",(rlbl->key+100));
- pic16_emitcode("push","acc");
- pic16_emitcode("mov","a,#(%05d_DS_ >> 8)",(rlbl->key+100));
- pic16_emitcode("push","acc");
-
- if (options.model == MODEL_FLAT24)
- {
- pic16_emitcode("mov","a,#(%05d_DS_ >> 16)",(rlbl->key+100));
- pic16_emitcode("push","acc");
- }
+ /* if send set is not empty the assign */
+ if (_G.sendSet) {
+ iCode *sic;
- /* now push the calling address */
- pic16_aopOp(IC_LEFT(ic),ic,FALSE);
+ /* For the Pic port, there is no data stack.
+ * So parameters passed to functions are stored
+ * in registers. (The pCode optimizer will get
+ * rid of most of these :). */
- pushSide(IC_LEFT(ic), FPTRSIZE);
+ int psuedoStkPtr=-1;
+ int firstTimeThruLoop = 1;
- pic16_freeAsmop(IC_LEFT(ic),NULL,ic,TRUE);
+ _G.sendSet = reverseSet(_G.sendSet);
- /* if send set is not empty the assign */
- if (_G.sendSet) {
- iCode *sic ;
+ /* First figure how many parameters are getting passed */
+ for (sic = setFirstItem(_G.sendSet) ; sic ; sic = setNextItem(_G.sendSet)) {
+ pic16_aopOp(IC_LEFT(sic),sic,FALSE);
+ psuedoStkPtr += AOP_SIZE(IC_LEFT(sic));
+ pic16_freeAsmop (IC_LEFT(sic),NULL,sic,FALSE);
+ }
- for (sic = setFirstItem(_G.sendSet) ; sic ;
- sic = setNextItem(_G.sendSet)) {
- int size, offset = 0;
- pic16_aopOp(IC_LEFT(sic),sic,FALSE);
- size = AOP_SIZE(IC_LEFT(sic));
- while (size--) {
- char *l = pic16_aopGet(AOP(IC_LEFT(sic)),offset,
- FALSE,FALSE);
- if (strcmp(l,fReturn[offset]))
- pic16_emitcode("mov","%s,%s",
- fReturn[offset],
- l);
- offset++;
- }
- pic16_freeAsmop (IC_LEFT(sic),NULL,sic,TRUE);
- }
- _G.sendSet = NULL;
- }
+ stackParms = psuedoStkPtr;
- pic16_emitcode("ret","");
- pic16_emitcode("","%05d_DS_:",(rlbl->key+100));
+ for (sic = setFirstItem(_G.sendSet) ; sic ; sic = setNextItem(_G.sendSet)) {
+ int size, offset = 0;
+
+ pic16_aopOp(IC_LEFT(sic),sic,FALSE);
+ size = AOP_SIZE(IC_LEFT(sic));
+
+ while (size--) {
+ DEBUGpic16_emitcode ("; ","%d left %s",__LINE__,
+ pic16_AopType(AOP_TYPE(IC_LEFT(sic))));
+ DEBUGpic16_emitcode("; ", "push %d", psuedoStkPtr-1);
+
+ if(!firstTimeThruLoop) {
+ /* If this is not the first time we've been through the loop
+ * then we need to save the parameter in a temporary
+ * register. The last byte of the last parameter is
+ * passed in W. */
+
+ pushw();
+ --psuedoStkPtr; // sanity check
+ }
+
+ firstTimeThruLoop=0;
+
+ mov2w (AOP(IC_LEFT(sic)), offset);
+ offset++;
+ }
+ pic16_freeAsmop (IC_LEFT(sic),NULL,sic,TRUE);
+ }
+ _G.sendSet = NULL;
+ }
+
+ pic16_aopOp(IC_LEFT(ic),ic,FALSE);
+
+ // push return address
+ // push $ on return stack, then replace with retlbl
+
+ // Note: retlbl is supplied as dummy operand to PUSH
+ // This has the nice side effect of keeping the label from being optimized out :o)
+ pic16_emitpcode(POC_PUSH, pic16_popGetLabel(retlbl->key));
+
+ pic16_emitpcode(POC_MOVLW, pic16_popGetImmd(pcop_lbl->name, 0, 0));
+ pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_tosl));
+ pic16_emitpcode(POC_MOVLW, pic16_popGetImmd(pcop_lbl->name, 1, 0));
+ pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_tosh));
+ pic16_emitpcode(POC_MOVLW, pic16_popGetImmd(pcop_lbl->name, 2, 0));
+ pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_tosu));
+
+ /* make the call by writing the pointer into pc */
+// FIXME Disabled writes to PCLATU because of gpsim problems
+#if 0
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(IC_LEFT(ic)),2), pic16_popCopyReg(&pic16_pc_pclatu)));
+#else
+ fprintf(stderr,
+"WARNING: (%s:%d) PCLATU is not written because of gpsim problems\n\
+Correct this as soon as gpsim bug is fixed\n", __FILE__, __LINE__);
+#endif
+
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(IC_LEFT(ic)),1), pic16_popCopyReg(&pic16_pc_pclath)));
+ // note: MOVFF to PCL not allowed
+ pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_LEFT(ic)),0));
+ pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_pcl));
+
+ /* return address is here: (X) */
+ pic16_emitpLabel(retlbl->key);
+
+ pic16_freeAsmop (IC_LEFT(ic),NULL,ic,TRUE);
+
+ GpsuedoStkPtr=0;
+ /* if we need assign a result value */
+ if ((IS_ITEMP(IC_RESULT(ic)) &&
+ (OP_SYMBOL(IC_RESULT(ic))->nRegs ||
+ OP_SYMBOL(IC_RESULT(ic))->spildir )) ||
+ IS_TRUE_SYMOP(IC_RESULT(ic)) ) {
+
+ _G.accInUse++;
+ pic16_aopOp(IC_RESULT(ic),ic,FALSE);
+ _G.accInUse--;
+
+ assignResultValue(IC_RESULT(ic), 1);
+
+ DEBUGpic16_emitcode ("; ","%d left %s",__LINE__,
+ pic16_AopType(AOP_TYPE(IC_RESULT(ic))));
+
+ pic16_freeAsmop(IC_RESULT(ic),NULL, ic,TRUE);
+ }
+
+ if(stackParms>0) {
+ pic16_emitpcode(POC_MOVLW, pic16_popGetLit(stackParms));
+ pic16_emitpcode(POC_ADDWF, pic16_popCopyReg( &pic16_pc_fsr1l ));
+ if(STACK_MODEL_LARGE) {
+ emitSKPNC;
+ pic16_emitpcode(POC_INCF, pic16_popCopyReg( &pic16_pc_fsr1h ));
+ }
+ }
+
+ /* adjust the stack for parameters if required */
+// fprintf(stderr, "%s:%d: %s ic->parmBytes= %d\n", __FILE__, __LINE__, OP_SYMBOL(IC_LEFT(ic))->name, ic->parmBytes);
+
+ if (ic->parmBytes) {
+ int i;
+
+ if (ic->parmBytes > 3) {
+ pic16_emitcode("mov","a,%s",spname);
+ pic16_emitcode("add","a,#0x%02x", (- ic->parmBytes) & 0xff);
+ pic16_emitcode("mov","%s,a",spname);
+ } else
+ for ( i = 0 ; i < ic->parmBytes ;i++)
+ pic16_emitcode("dec","%s",spname);
+ }
+
+ /* if register bank was saved then pop them */
+ if (ic->bankSaved)
+ unsaverbank(FUNC_REGBANK(dtype),ic,TRUE);
+
+ /* if we hade saved some registers then unsave them */
+ if (ic->regsSaved && !IFFUNC_CALLEESAVES(dtype))
+ unsaveRegisters (ic);
+}
+
+
+#if 0 // patch 14
+// old version, kept for reference
+
+/*-----------------------------------------------------------------*/
+/* genPcall - generates a call by pointer statement */
+/*-----------------------------------------------------------------*/
+static void genPcall (iCode *ic)
+{
+ sym_link *dtype;
+ symbol *rlbl = newiTempLabel(NULL);
+
+
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ /* if caller saves & we have not saved then */
+ if (!ic->regsSaved)
+ saveRegisters(ic);
+
+ /* if we are calling a function that is not using
+ the same register bank then we need to save the
+ destination registers on the stack */
+ dtype = operandType(IC_LEFT(ic));
+ if (currFunc && dtype &&
+ IFFUNC_ISISR(currFunc->type) &&
+ (FUNC_REGBANK(currFunc->type) != FUNC_REGBANK(dtype)))
+ saverbank(FUNC_REGBANK(dtype),ic,TRUE);
+
+
+ /* push the return address on to the stack */
+ pic16_emitcode("mov","a,#%05d_DS_",(rlbl->key+100));
+ pic16_emitcode("push","acc");
+ pic16_emitcode("mov","a,#(%05d_DS_ >> 8)",(rlbl->key+100));
+ pic16_emitcode("push","acc");
+
+ if (options.model == MODEL_FLAT24)
+ {
+ pic16_emitcode("mov","a,#(%05d_DS_ >> 16)",(rlbl->key+100));
+ pic16_emitcode("push","acc");
+ }
+
+ /* now push the calling address */
+ pic16_aopOp(IC_LEFT(ic),ic,FALSE);
+
+ pushSide(IC_LEFT(ic), FPTRSIZE);
+
+ pic16_freeAsmop(IC_LEFT(ic),NULL,ic,TRUE);
+
+ /* if send set is not empty the assign */
+ if (_G.sendSet) {
+ iCode *sic ;
+
+ for (sic = setFirstItem(_G.sendSet) ; sic ;
+ sic = setNextItem(_G.sendSet)) {
+ int size, offset = 0;
+ pic16_aopOp(IC_LEFT(sic),sic,FALSE);
+ size = AOP_SIZE(IC_LEFT(sic));
+ while (size--) {
+ char *l = pic16_aopGet(AOP(IC_LEFT(sic)),offset,
+ FALSE,FALSE);
+ if (strcmp(l,fReturn[offset]))
+ pic16_emitcode("mov","%s,%s",
+ fReturn[offset],
+ l);
+ offset++;
+ }
+ pic16_freeAsmop (IC_LEFT(sic),NULL,sic,TRUE);
+ }
+ _G.sendSet = NULL;
+ }
+
+ pic16_emitcode("ret","");
+ pic16_emitcode("","%05d_DS_:",(rlbl->key+100));
/* if we need assign a result value */
pic16_aopOp(IC_RESULT(ic),ic,FALSE);
_G.accInUse--;
- assignResultValue(IC_RESULT(ic));
+ assignResultValue(IC_RESULT(ic), 1);
pic16_freeAsmop(IC_RESULT(ic),NULL,ic,TRUE);
}
unsaveRegisters (ic);
}
+#endif // patch 14
+
/*-----------------------------------------------------------------*/
/* resultRemat - result is rematerializable */
{
symbol *sym;
sym_link *ftype;
-
+
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;
+
+ ftype = operandType(IC_LEFT(ic));
+ sym = OP_SYMBOL(IC_LEFT(ic));
+
+ if(IFFUNC_ISISR(sym->type /*ftype*/)) {
+ /* create an absolute section at the interrupt vector:
+ * that is 0x0008 for interrupt 1 (high), 0x0018 interrupt 2 (low) */
+ symbol *asym;
+ char asymname[128];
+ pBlock *apb;
+
+ {
+ int i, found=-1;
+
+ sym = OP_SYMBOL( IC_LEFT(ic));
+ for(i=0;i<=2;i++) {
+ if(interrupts[i]->name
+ && !STRCASECMP(interrupts[i]->name, sym->name)) {
+ found = i;
+ break;
+ }
+ }
+
+ if(found == -1) {
+ fprintf(stderr, "PIC16 port: %s:%d: interrupt function but cannot locate symbol (%s)\n",
+ __FILE__, __LINE__, sym->name);
+ assert( 0 );
+ }
+ _G.interruptvector = found;
+ }
+
+ sprintf(asymname, "ivec_%d_%s", _G.interruptvector, sym->name);
+ asym = newSymbol(asymname, 0);
+
+ apb = pic16_newpCodeChain(NULL, 'A', pic16_newpCodeCharP("; Starting pCode block for absolute section"));
+ pic16_addpBlock( apb );
+
+ pic16_addpCode2pBlock(apb,
+ pic16_newpCodeCharP(";-----------------------------------------"));
+
+
+ pic16_addpCode2pBlock(apb, pic16_newpCodeFunction(moduleName, asym->name));
+
+ pic16_addpCode2pBlock(apb,
+ pic16_newpCode(POC_GOTO, pic16_popGetWithString( sym->rname )));
+
+ /* mark the end of this tiny function */
+ pic16_addpCode2pBlock(apb,pic16_newpCodeFunction(NULL,NULL));
+
+ {
+ absSym *abSym;
+
+ abSym = Safe_calloc(1, sizeof(absSym));
+ abSym->name = Safe_strdup( asymname );
+
+ switch( _G.interruptvector ) {
+ case 0: abSym->address = 0x000000; break;
+ case 1: abSym->address = 0x000008; break;
+ case 2: abSym->address = 0x000018; break;
+ }
+
+ addSet(&absSymSet, abSym);
+ }
+ }
+
+
/* create the function header */
pic16_emitcode(";","-----------------------------------------");
- pic16_emitcode(";"," function %s",(sym = OP_SYMBOL(IC_LEFT(ic)))->name);
+ pic16_emitcode(";"," function %s",sym->name);
pic16_emitcode(";","-----------------------------------------");
pic16_emitcode("","%s:",sym->rname);
pic16_addpCode2pBlock(pb,pic16_newpCodeFunction(moduleName,sym->rname));
+
{
absSym *ab;
for(ab = setFirstItem(absSymSet); ab; ab = setNextItem(absSymSet))
- if(strcmp(ab->name, sym->name)) {
+ if(!strcmp(ab->name, sym->name)) {
pic16_pBlockConvert2Absolute(pb);
break;
}
-
+
}
- ftype = operandType(IC_LEFT(ic));
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
- 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
-
/* 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);
-#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");
- }
+ int i;
+ /* an ISR should save: WREG, STATUS, BSR, PRODL, PRODH, FSR0L, FSR0H */
+ if(!(_G.interruptvector == 1)) {
+
+ /* do not save WREG,STATUS,BSR for high priority interrupts
+ * because they are stored in the hardware shadow registers already */
+
+ pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_wreg ));
+ pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_status ));
+ pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_bsr ));
}
- /* 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);
- }
- }
+ pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_prodl ));
+ pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_prodh ));
+ pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_fsr0l ));
+ pic16_pushpCodeOp( pic16_popCopyReg( &pic16_pc_fsr0h ));
- } else {
- /* this function has a function call cannot
- * determines register usage so we will have the
- * entire bank */
- saverbank(0,ic,FALSE);
- }
+// pic16_pBlockConvert2ISR(pb);
+
+ /* if any registers used */
+ if (sym->regsUsed) {
+ /* 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_pushpCodeOp( pic16_popRegFromIdx(i) );
+ _G.nRegsSaved++;
+ }
+ }
}
-#endif
} else {
-#if STACK_SUPPORT
/* 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")) {
- if(!options.ommitFramePtr || sym->regsUsed) {
+ if(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));
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)) {
+// if (IFFUNC_CALLEESAVES(sym->type))
+ {
int i;
-
-// fprintf(stderr, "%s:%d function sym->regsUsed= %p\n", __FILE__, __LINE__, sym->regsUsed);
-
+
+// fprintf(stderr, "%s:%d function sym->regsUsed= %d\n", __FILE__, __LINE__, sym->regsUsed->size);
+
+// pic16_emitpcomment("entry regsUsed: %d\n", sym->regsUsed?sym->regsUsed->size:-1);
+
/* if any registers used */
- if (sym->regsUsed
-#if STACK_SUPPORT
- && USE_STACK
-#endif
- ) {
+ if (sym->regsUsed) {
/* 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_pushpCodeOp( pic16_popRegFromIdx(i) );
+
// pic16_emitpcode(POC_MOVFF, pic16_popCombine2(
// PCOR(pic16_popCopyReg( PCOR(pic16_popRegFromIdx(i)))),
// &pic16_pc_postdec1, 0));
+
_G.nRegsSaved++;
}
}
}
#endif
- /* restore the register bank */
- if (FUNC_REGBANK(sym->type) || FUNC_ISISR(sym->type))
- pic16_emitcode ("pop","psw");
-
- if (IFFUNC_ISISR(sym->type)) {
-
- /* now we need to restore the registers */
- /* if this isr has no bank i.e. is going to
- run with bank 0 , then we need to save more
- registers :-) */
- if (!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 (IFFUNC_ISISR(sym->type)) {
+ /* now we need to restore the registers */
/* if any registers used */
if (sym->regsUsed) {
- /* 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);
- }
- }
-
- } else {
- /* this function has a function call cannot
- determines register usage so we will have the
- entire bank */
- unsaverbank(0,ic,FALSE);
- }
- }
-#if 0
- if (options.model == MODEL_FLAT24 && !inExcludeList("dpx"))
- {
- if (options.stack10bit)
- {
- pic16_emitcode ("pop", "dpx1");
- pic16_emitcode ("pop", "dph1");
- pic16_emitcode ("pop", "dpl1");
- }
- pic16_emitcode ("pop", "dps");
- pic16_emitcode ("pop", "dpx");
- }
- if (!inExcludeList("dph"))
- pic16_emitcode ("pop","dph");
- if (!inExcludeList("dpl"))
- pic16_emitcode ("pop","dpl");
- if (!inExcludeList("b"))
- pic16_emitcode ("pop","b");
- if (!inExcludeList("acc"))
- pic16_emitcode ("pop","acc");
-
- if (IFFUNC_ISCRITICAL(sym->type))
- pic16_emitcode("setb","ea");
-#endif
+ int i;
- /* if debug then send end of function */
-/* if (options.debug && currFunc) { */
- if (currFunc) {
- _G.debugLine = 1;
- pic16_emitcode(";","C$%s$%d$%d$%d ==.",
- FileBaseName(ic->filename),currFunc->lastLine,
- ic->level,ic->block);
- if (IS_STATIC(currFunc->etype))
- pic16_emitcode(";","XF%s$%s$0$0 ==.",moduleName,currFunc->name);
- else
- pic16_emitcode(";","XG$%s$0$0 ==.",currFunc->name);
- _G.debugLine = 0;
- }
+ /* restore registers used */
+ DEBUGpic16_emitcode("; **", "Restoring used registers from stack");
+ for ( i = sym->regsUsed->size; i >= 0; i--) {
+ if (bitVectBitValue(sym->regsUsed,i)) {
+
+// fprintf(stderr, "%s:%d function %s uses register %s (restoring)\n",
+// __FILE__, __LINE__, OP_SYMBOL(IC_LEFT(ic))->name,
+// pic16_regWithIdx(i)->name);
+
+ pic16_poppCodeOp( pic16_popRegFromIdx(i) );
+
+// pic16_emitpcode(POC_MOVFF, pic16_popCombine2(
+// &pic16_pc_preinc1,
+// PCOR(pic16_popCopyReg( PCOR(pic16_popRegFromIdx(i)))), 0));
+
+ }
+ }
+ }
-// pic16_emitcode ("reti","");
+ pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_fsr0h ));
+ pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_fsr0l));
+ pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_prodh ));
+ pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_prodl ));
+
+ if(!(_G.interruptvector == 1)) {
+ /* do not restore interrupt vector for WREG,STATUS,BSR
+ * for high priority interrupt, see genFunction */
+
+ pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_bsr ));
+ pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_status ));
+ pic16_poppCodeOp( pic16_popCopyReg( &pic16_pc_wreg ));
+ }
+
+ _G.interruptvector = 0; /* sanity check */
- pic16_emitpcode(POC_CLRF, pic16_popCopyReg(&pic16_pc_status));
- pic16_emitpcode(POC_SWAPFW, pic16_popCopyReg(&pic16_pc_ssave));
- pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_status));
- pic16_emitpcode(POC_SWAPF, pic16_popCopyReg(&pic16_pc_wsave));
- pic16_emitpcode(POC_SWAPFW, pic16_popCopyReg(&pic16_pc_wsave));
+// pic16_pBlockConvert2ISR(pb);
-#if 0
- pic16_addpCode2pBlock(pb,pic16_newpCodeLabel("END_OF_INTERRUPT",-1));
-#endif
- pic16_emitpcodeNULLop(POC_RETFIE);
+ /* if debug then send end of function */
+/* if (options.debug && currFunc) */
+ if (currFunc) {
+ _G.debugLine = 1;
+ pic16_emitcode(";","C$%s$%d$%d$%d ==.",
+ FileBaseName(ic->filename),currFunc->lastLine,
+ ic->level,ic->block);
+ if (IS_STATIC(currFunc->etype))
+ pic16_emitcode(";","XF%s$%s$0$0 ==.",moduleName,currFunc->name);
+ else
+ pic16_emitcode(";","XG$%s$0$0 ==.",currFunc->name);
+ _G.debugLine = 0;
+ }
+
+ pic16_emitpcodeNULLop(POC_RETFIE);
+ } else {
+ if (IFFUNC_ISCRITICAL(sym->type))
+ pic16_emitcode("setb","ea");
+
+
+// pic16_emitpcomment("exit regsUsed: %d\n", sym->regsUsed?sym->regsUsed->size:-1);
- }
- else {
- if (IFFUNC_ISCRITICAL(sym->type))
- pic16_emitcode("setb","ea");
+ /* if any registers used */
+ if (sym->regsUsed) {
+ int i;
+ /* save the registers used */
+ DEBUGpic16_emitcode("; **", "Restoring used registers from stack");
+ for ( i = sym->regsUsed->size; i >= 0; i--) {
+ if (bitVectBitValue(sym->regsUsed,i)) {
- /* if any registers used */
- if (sym->regsUsed
-#if STACK_SUPPORT
- && USE_STACK
-#endif
- ) {
- int i;
- /* save the registers used */
- DEBUGpic16_emitcode("; **", "Restoring used registers from stack");
- for ( i = sym->regsUsed->size; i >= 0; i--) {
- if (bitVectBitValue(sym->regsUsed,i)) {
-// fprintf(stderr, "%s:%d function %s uses register %s\n",
-// __FILE__, __LINE__, OP_SYMBOL(IC_LEFT(ic))->name,
-// pic16_regWithIdx(i)->name);
-
- pic16_emitpcode(POC_MOVFF, pic16_popCombine2(
- &pic16_pc_preinc1,
- PCOR(pic16_popCopyReg( PCOR(pic16_popRegFromIdx(i)))), 0));
+// fprintf(stderr, "%s:%d function %s uses register %s (restoring)\n",
+// __FILE__, __LINE__, OP_SYMBOL(IC_LEFT(ic))->name,
+// pic16_regWithIdx(i)->name);
+
+ pic16_poppCodeOp( pic16_popRegFromIdx(i) );
+
+// pic16_emitpcode(POC_MOVFF, pic16_popCombine2(
+// &pic16_pc_preinc1,
+// PCOR(pic16_popCopyReg( PCOR(pic16_popRegFromIdx(i)))), 0));
+
+ _G.nRegsSaved--;
+ }
}
}
- }
+ pic16_emitpcomment("%s: _G.nRegsSaved upon exit from function: %d\n", __FUNCTION__, _G.nRegsSaved);
+ /* if debug then send end of function */
+ if (currFunc) {
+ _G.debugLine = 1;
+ pic16_emitcode(";","C$%s$%d$%d$%d ==.",
+ FileBaseName(ic->filename),currFunc->lastLine,
+ ic->level,ic->block);
+ if (IS_STATIC(currFunc->etype))
+ pic16_emitcode(";","XF%s$%s$0$0 ==.",moduleName,currFunc->name);
+ else
+ pic16_emitcode(";","XG$%s$0$0 ==.",currFunc->name);
+ _G.debugLine = 0;
+ }
- /* if debug then send end of function */
- if (currFunc) {
- _G.debugLine = 1;
- pic16_emitcode(";","C$%s$%d$%d$%d ==.",
- FileBaseName(ic->filename),currFunc->lastLine,
- ic->level,ic->block);
- if (IS_STATIC(currFunc->etype))
- pic16_emitcode(";","XF%s$%s$0$0 ==.",moduleName,currFunc->name);
- else
- pic16_emitcode(";","XG$%s$0$0 ==.",currFunc->name);
- _G.debugLine = 0;
- }
-
-#if STACK_SUPPORT
- /* insert code to restore stack frame, if user enabled it
- * and function is not main() */
+ /* insert code to restore stack frame, if user enabled it
+ * and function is not main() */
- if(USE_STACK && strcmp(sym->name, "main")) {
- if(!options.ommitFramePtr || sym->regsUsed) {
- /* restore stack frame */
- if(STACK_MODEL_LARGE)
+
+ if(strcmp(sym->name, "main")) {
+ if(/*!options.ommitFramePtr ||*/ sym->regsUsed) {
+ /* restore stack frame */
+ if(STACK_MODEL_LARGE)
+ pic16_emitpcode(POC_MOVFF,
+ pic16_popCombine2( &pic16_pc_preinc1, &pic16_pc_fsr2h, 0));
pic16_emitpcode(POC_MOVFF,
- pic16_popCombine2( &pic16_pc_postinc1, &pic16_pc_fsr2h, 0));
- pic16_emitpcode(POC_MOVFF,
- pic16_popCombine2( &pic16_pc_postinc1, &pic16_pc_fsr2l, 0));
+ pic16_popCombine2( &pic16_pc_preinc1, &pic16_pc_fsr2l, 0));
+ }
}
+
+ pic16_emitcode ("return","");
+ pic16_emitpcodeNULLop(POC_RETURN);
+
+ /* Mark the end of a function */
+ pic16_addpCode2pBlock(pb,pic16_newpCodeFunction(NULL,NULL));
}
-#endif
- pic16_emitcode ("return","");
- pic16_emitpcodeNULLop(POC_RETURN);
+}
+
- /* Mark the end of a function */
- pic16_addpCode2pBlock(pb,pic16_newpCodeFunction(NULL,NULL));
- }
+void pic16_storeForReturn(operand *op, int offset, pCodeOp *dest)
+{
+// (AOP(left)->aopu.pcop->type == PO_DIR)?
+ if(AOP(op)->aopu.pcop->type == PO_IMMEDIATE) {
+ pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(op), offset)); // patch 12
+ pic16_emitpcode(POC_MOVWF, dest);
+ } else {
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
+ pic16_popGet(AOP(op), offset), dest));
+ }
}
/*-----------------------------------------------------------------*/
/*-----------------------------------------------------------------*/
static void genRet (iCode *ic)
{
- int size,offset = 0 , pushed = 0;
-
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- /* if we have no return value then
- just generate the "ret" */
- if (!IC_LEFT(ic))
- goto jumpret;
-
- /* we have something to return then
- move the return value into place */
- pic16_aopOp(IC_LEFT(ic),ic,FALSE);
- size = AOP_SIZE(IC_LEFT(ic));
+ int size;
+ operand *left;
+
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ /* if we have no return value then
+ * just generate the "ret" */
+
+ if (!IC_LEFT(ic))
+ goto jumpret;
- while (size--) {
- char *l ;
- if (AOP_TYPE(IC_LEFT(ic)) == AOP_DPTR) {
- /* #NOCHANGE */
- l = pic16_aopGet(AOP(IC_LEFT(ic)),offset++,
- FALSE,TRUE);
- pic16_emitcode("push","%s",l);
- pushed++;
- } else {
- DEBUGpic16_emitcode(";", "%d", __LINE__);
- l = pic16_aopGet(AOP(IC_LEFT(ic)),offset,
- FALSE,FALSE);
- DEBUGpic16_emitcode(";", "%d l= %s", __LINE__, l);
- if (strcmp(fReturn[offset],l)) {
- if( ( (AOP(IC_LEFT(ic))->type) == AOP_IMMD) ||
- ((AOP(IC_LEFT(ic))->type) == AOP_LIT) ) {
- pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(IC_LEFT(ic)),offset));
- }else {
- pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_LEFT(ic)),offset));
+ /* we have something to return then
+ * move the return value into place */
+ pic16_aopOp((left=IC_LEFT(ic)),ic,FALSE);
+ size = AOP_SIZE(IC_LEFT(ic));
+
+ if(size <= 4) {
+ if(size>3) {
+ pic16_storeForReturn(IC_LEFT(ic), 3, pic16_popCopyReg(&pic16_pc_fsr0l));
+// pic16_emitpcode(POC_MOVFF,
+// pic16_popGet2p(pic16_popGet(AOP(IC_LEFT(ic)), 3), pic16_popCopyReg(&pic16_pc_fsr0l)));
+ }
+ if(size>2) {
+ pic16_storeForReturn(IC_LEFT(ic), 2, pic16_popCopyReg(&pic16_pc_prodh));
+// pic16_emitpcode(POC_MOVFF,
+// pic16_popGet2p(pic16_popGet(AOP(IC_LEFT(ic)), 2), pic16_popCopyReg(&pic16_pc_prodh)));
+ }
+ if(size>1) {
+ pic16_storeForReturn(IC_LEFT(ic), 1, pic16_popCopyReg(&pic16_pc_prodl));
+// pic16_emitpcode(POC_MOVFF,
+// pic16_popGet2p(pic16_popGet(AOP(IC_LEFT(ic)), 1), pic16_popCopyReg(&pic16_pc_prodl)));
+ }
+
+// pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_LEFT(ic)), 0)); // patch 12
+
+ pic16_storeForReturn(IC_LEFT(ic), 0, pic16_popCopyReg(&pic16_pc_wreg)); // patch 12
+// pic16_emitpcode(POC_MOVFF,
+// pic16_popGet2p(pic16_popGet(AOP(IC_LEFT(ic)), 0), pic16_popCopyReg(&pic16_pc_wreg)));
+
+ } else {
+ /* >32-bits, setup stack and FSR0 */
+ while (size--) {
+// DEBUGpic16_emitcode("; ", "POC_MOVLW %d", GpsuedoStkPtr);
+// DEBUGpic16_emitcode("; ", "POC_MOVFW PLUSW2");
+
+ pic16_pushpCodeOp( pic16_popGet( AOP( IC_LEFT(ic) ), size) );
+
+// popaopidx(AOP(oper), size, GpseudoStkPtr);
+ GpsuedoStkPtr++;
+ }
+
+ /* setup FSR0 */
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
+ pic16_popCopyReg(&pic16_pc_fsr1l), pic16_popCopyReg(&pic16_pc_fsr0l)));
+
+ if(STACK_MODEL_LARGE) {
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
+ pic16_popCopyReg(&pic16_pc_fsr1h), pic16_popCopyReg(&pic16_pc_fsr0h)));
+ } else {
+ pic16_emitpcode(POC_CLRF, pic16_popCopyReg( &pic16_pc_fsr1h ) );
+ }
}
- if(size) {
- pic16_emitpcode(POC_MOVWF, pic16_popRegFromIdx(offset + pic16_Gstack_base_addr));
+
+#if 0
+ /* old code, left here for reference -- VR */
+ while (size--) {
+ char *l ;
+
+ if (AOP_TYPE(IC_LEFT(ic)) == AOP_DPTR) {
+ /* #NOCHANGE */
+ l = pic16_aopGet(AOP(IC_LEFT(ic)),offset++, FALSE,TRUE);
+ pic16_emitpcomment("push %s",l);
+ pushed++;
+ } else {
+ DEBUGpic16_emitcode(";", "%d", __LINE__);
+ l = pic16_aopGet(AOP(IC_LEFT(ic)),offset, FALSE,FALSE);
+ DEBUGpic16_emitcode(";", "%d l= %s", __LINE__, l);
+
+ if (strcmp(fReturn[offset],l)) {
+ if( ( (AOP(IC_LEFT(ic))->type) == AOP_IMMD)
+ || ((AOP(IC_LEFT(ic))->type) == AOP_LIT) ) {
+ pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(IC_LEFT(ic)),offset));
+ } else {
+ pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_LEFT(ic)),offset));
+ }
+
+ if(size) {
+ pic16_emitpcode(POC_MOVWF, pic16_popRegFromIdx(offset + pic16_Gstack_base_addr));
+ }
+ offset++;
+ }
+ }
+ }
+
+ if (pushed) {
+ while(pushed) {
+ pushed--;
+ if (strcmp(fReturn[pushed],"a"))
+ pic16_emitcode("pop",fReturn[pushed]);
+ else
+ pic16_emitcode("pop","acc");
+ }
}
- offset++;
- }
- }
- }
+#endif
- if (pushed) {
- while(pushed) {
- pushed--;
- if (strcmp(fReturn[pushed],"a"))
- pic16_emitcode("pop",fReturn[pushed]);
- else
- pic16_emitcode("pop","acc");
- }
- }
- pic16_freeAsmop (IC_LEFT(ic),NULL,ic,TRUE);
-
- jumpret:
- /* generate a jump to the return label
- if the next is not the return statement */
- if (!(ic->next && ic->next->op == LABEL &&
- IC_LABEL(ic->next) == returnLabel)) {
-
- pic16_emitpcode(POC_GOTO,pic16_popGetLabel(returnLabel->key));
- pic16_emitcode("goto","_%05d_DS_",returnLabel->key+100 + labelOffset);
- }
+
+ pic16_freeAsmop (IC_LEFT(ic),NULL,ic,TRUE);
+jumpret:
+ /* generate a jump to the return label
+ * if the next is not the return statement */
+ if (!(ic->next && ic->next->op == LABEL
+ && IC_LABEL(ic->next) == returnLabel)) {
+
+ pic16_emitpcode(POC_GOTO,pic16_popGetLabel(returnLabel->key));
+ pic16_emitcode("goto","_%05d_DS_",returnLabel->key+100 + labelOffset);
+ }
}
/*-----------------------------------------------------------------*/
/*-----------------------------------------------------------------*/
static void genLabel (iCode *ic)
{
+
+
/* special case never generate */
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
if (IC_LABEL(ic) == entryLabel)
operand *right,
operand *result)
{
- sym_link *opetype = operandType(result);
-
- // symbol *lbl ;
- int size,offset;
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
DEBUGpic16_pic16_AopType(__LINE__,left,right,result);
left = t;
}
- size = AOP_SIZE(result);
- if(size == 1) {
-
- if (AOP_TYPE(right) == AOP_LIT){
- pic16_emitcode("multiply ","lit val:%s by variable %s and store in %s",
- pic16_aopGet(AOP(right),0,FALSE,FALSE),
- pic16_aopGet(AOP(left),0,FALSE,FALSE),
- pic16_aopGet(AOP(result),0,FALSE,FALSE));
- pic16_emitcode("call","genMultLit");
- } else {
- pic16_emitcode("multiply ","variable :%s by variable %s and store in %s",
- pic16_aopGet(AOP(right),0,FALSE,FALSE),
- pic16_aopGet(AOP(left),0,FALSE,FALSE),
- pic16_aopGet(AOP(result),0,FALSE,FALSE));
- pic16_emitcode("call","pic16_genMult8X8_8");
-
- }
- pic16_genMult8X8_8 (left, right,result);
-
+ /* size is already checked in genMult == 1 */
+// size = AOP_SIZE(result);
- /* signed or unsigned */
- //pic16_emitcode("mov","b,%s", pic16_aopGet(AOP(right),0,FALSE,FALSE));
- //l = pic16_aopGet(AOP(left),0,FALSE,FALSE);
- //MOVA(l);
- //pic16_emitcode("mul","ab");
- /* if result size = 1, mul signed = mul unsigned */
- //pic16_aopPut(AOP(result),"a",0);
+ if (AOP_TYPE(right) == AOP_LIT){
+ pic16_emitpcomment("multiply lit val:%s by variable %s and store in %s",
+ pic16_aopGet(AOP(right),0,FALSE,FALSE),
+ pic16_aopGet(AOP(left),0,FALSE,FALSE),
+ pic16_aopGet(AOP(result),0,FALSE,FALSE));
+ } else {
+ pic16_emitpcomment("multiply variable :%s by variable %s and store in %s",
+ pic16_aopGet(AOP(right),0,FALSE,FALSE),
+ pic16_aopGet(AOP(left),0,FALSE,FALSE),
+ pic16_aopGet(AOP(result),0,FALSE,FALSE));
+ }
+
+ pic16_genMult8X8_8 (left, right,result);
- } else { // (size > 1)
+#if 0
pic16_emitcode("multiply (size>1) ","variable :%s by variable %s and store in %s",
pic16_aopGet(AOP(right),0,FALSE,FALSE),
pic16_aopGet(AOP(left),0,FALSE,FALSE),
pic16_emitcode("multiply ","size is way greater than 2, so propogate sign");
//pic16_aopPut(AOP(result),"a",offset++);
}
+#endif
+
+
+}
+
+/*-----------------------------------------------------------------*/
+/* genMultOneWord : 16 bit multiplication */
+/*-----------------------------------------------------------------*/
+static void genMultOneWord (operand *left,
+ operand *right,
+ operand *result)
+{
+
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ DEBUGpic16_pic16_AopType(__LINE__,left,right,result);
+ DEBUGpic16_pic16_AopTypeSign(__LINE__,left,right,result);
+
+ /* (if two literals, the value is computed before)
+ * if one literal, literal on the right */
+ if (AOP_TYPE(left) == AOP_LIT){
+ operand *t = right;
+ right = left;
+ left = t;
+ }
+
+ /* size is checked already == 2 */
+// size = AOP_SIZE(result);
+
+ if (AOP_TYPE(right) == AOP_LIT) {
+ pic16_emitpcomment("multiply lit val:%s by variable %s and store in %s",
+ pic16_aopGet(AOP(right),0,FALSE,FALSE),
+ pic16_aopGet(AOP(left),0,FALSE,FALSE),
+ pic16_aopGet(AOP(result),0,FALSE,FALSE));
+ } else {
+ pic16_emitpcomment("multiply variable :%s by variable %s and store in %s",
+ pic16_aopGet(AOP(right),0,FALSE,FALSE),
+ pic16_aopGet(AOP(left),0,FALSE,FALSE),
+ pic16_aopGet(AOP(result),0,FALSE,FALSE));
+ }
+
+ pic16_genMult16X16_16(left, right,result);
+}
+
+/*-----------------------------------------------------------------*/
+/* genMultOneLong : 32 bit multiplication */
+/*-----------------------------------------------------------------*/
+static void genMultOneLong (operand *left,
+ operand *right,
+ operand *result)
+{
+
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ DEBUGpic16_pic16_AopType(__LINE__,left,right,result);
+ DEBUGpic16_pic16_AopTypeSign(__LINE__,left,right,result);
+
+ /* (if two literals, the value is computed before)
+ * if one literal, literal on the right */
+ if (AOP_TYPE(left) == AOP_LIT){
+ operand *t = right;
+ right = left;
+ left = t;
+ }
+
+ /* size is checked already == 4 */
+// size = AOP_SIZE(result);
+
+ if (AOP_TYPE(right) == AOP_LIT) {
+ pic16_emitpcomment("multiply lit val:%s by variable %s and store in %s",
+ pic16_aopGet(AOP(right),0,FALSE,FALSE),
+ pic16_aopGet(AOP(left),0,FALSE,FALSE),
+ pic16_aopGet(AOP(result),0,FALSE,FALSE));
+ } else {
+ pic16_emitpcomment("multiply variable :%s by variable %s and store in %s",
+ pic16_aopGet(AOP(right),0,FALSE,FALSE),
+ pic16_aopGet(AOP(left),0,FALSE,FALSE),
+ pic16_aopGet(AOP(result),0,FALSE,FALSE));
+ }
+
+ pic16_genMult32X32_32(left, right,result);
}
+
+
/*-----------------------------------------------------------------*/
/* genMult - generates code for multiplication */
/*-----------------------------------------------------------------*/
static void genMult (iCode *ic)
{
- operand *left = IC_LEFT(ic);
- operand *right = IC_RIGHT(ic);
- operand *result= IC_RESULT(ic);
-
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- /* assign the amsops */
- pic16_aopOp (left,ic,FALSE);
- pic16_aopOp (right,ic,FALSE);
- pic16_aopOp (result,ic,TRUE);
+ operand *left = IC_LEFT(ic);
+ operand *right = IC_RIGHT(ic);
+ operand *result= IC_RESULT(ic);
- DEBUGpic16_pic16_AopType(__LINE__,left,right,result);
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ /* assign the amsops */
+ pic16_aopOp (left,ic,FALSE);
+ pic16_aopOp (right,ic,FALSE);
+ pic16_aopOp (result,ic,TRUE);
+
+ DEBUGpic16_pic16_AopType(__LINE__,left,right,result);
+
+ /* special cases first *
+ * both are bits */
+ if (AOP_TYPE(left) == AOP_CRY
+ && AOP_TYPE(right)== AOP_CRY) {
+ genMultbits(left,right,result);
+ goto release ;
+ }
- /* special cases first */
- /* both are bits */
- if (AOP_TYPE(left) == AOP_CRY &&
- AOP_TYPE(right)== AOP_CRY) {
- genMultbits(left,right,result);
- goto release ;
- }
+ /* if both are of size == 1 */
+ if(AOP_SIZE(left) == 1
+ && AOP_SIZE(right) == 1) {
+ genMultOneByte(left,right,result);
+ goto release ;
+ }
- /* if both are of size == 1 */
- if (AOP_SIZE(left) == 1 &&
- AOP_SIZE(right) == 1 ) {
- genMultOneByte(left,right,result);
- goto release ;
- }
+ /* if both are of size == 2 */
+ if(AOP_SIZE(left) == 2
+ && AOP_SIZE(right) == 2) {
+ genMultOneWord(left, right, result);
+ goto release;
+ }
+
+ /* if both are of size == 4 */
+ if(AOP_SIZE(left) == 4
+ && AOP_SIZE(right) == 4) {
+ genMultOneLong(left, right, result);
+ goto release;
+ }
+
+ pic16_emitcode("multiply ","sizes are greater than 4 ... need to insert proper algor.");
- pic16_emitcode("multiply ","sizes are greater than 2... need to insert proper algor.");
- /* should have been converted to function call */
- //assert(0) ;
+ fprintf(stderr, "operand sizes result: %d left: %d right: %d\n", AOP_SIZE(result), AOP_SIZE(left), AOP_SIZE(right));
+ /* should have been converted to function call */
+ assert(0) ;
release :
- pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
- pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
- pic16_freeAsmop(result,NULL,ic,TRUE);
+ pic16_freeAsmop(left,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
+ pic16_freeAsmop(right,NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
+ pic16_freeAsmop(result,NULL,ic,TRUE);
}
/*-----------------------------------------------------------------*/
/*-----------------------------------------------------------------*/
static void genSkipc(resolvedIfx *rifx)
{
+ DEBUGpic16_emitcode ("; ***","%s %d rifx= %p",__FUNCTION__,__LINE__, rifx);
+
if(!rifx)
return;
else
emitSKPNC;
- pic16_emitpcode(POC_GOTO,pic16_popGetLabel(rifx->lbl->key));
+ pic16_emitpcode(POC_GOTO, pic16_popGetLabel(rifx->lbl->key));
rifx->generated = 1;
}
/*-----------------------------------------------------------------*/
static void genSkipz2(resolvedIfx *rifx, int invert_condition)
{
+ DEBUGpic16_emitcode ("; ***","%s %d rifx= %p",__FUNCTION__,__LINE__, rifx);
+
if(!rifx)
return;
end the carry flag is set then we know that
left is greater than right */
- // {
-
symbol *lbl = newiTempLabel(NULL);
+#if 0
+ fprintf(stderr, "%s:%s:%d truelbl: %d\tlbl: %d\n",
+ __FILE__, __FUNCTION__, __LINE__, truelbl->key+100+labelOffset, lbl->key+100+labelOffset);
+#endif
+
#ifndef _swapp
if(AOP_TYPE(right) == AOP_LIT) {
pic16_emitpLabel(lbl->key);
+// pic16_emitpLabel(truelbl->key);
//if(emitFinalCheck)
genSkipc(&rFalseIfx);
if(sign)
pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(right),size));
} else {
/* this byte of the lit is zero,
- *if it's not the last then OR in the variable */
+ * if it's not the last then OR in the variable */
if(size)
pic16_emitpcode(POC_IORFW, pic16_popGet(AOP(right),size));
}
pic16_emitpLabel(lbl->key);
rFalseIfx.condition ^= 1;
+
genSkipc(&rFalseIfx);
}
int res_offset = 0; /* the result may be a different size then left or right */
int res_size = AOP_SIZE(result);
resolvedIfx rIfx;
- symbol *lbl;
+ symbol *lbl, *lbl_done;
unsigned long lit = 0L;
+ int preserve_result = 0; /* don't touch result before we are done, if left/right == result */
+
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
DEBUGpic16_pic16_AopType(__LINE__,left,right,result);
if(result)
DEBUGpic16_emitcode ("; ***","%s %d result is not null",__FUNCTION__,__LINE__);
resolveIfx(&rIfx,ifx);
lbl = newiTempLabel(NULL);
+ lbl_done = newiTempLabel(NULL);
/* if the left side is a literal or
if(AOP_TYPE(right) == AOP_LIT)
lit = (unsigned long)floatFromVal(AOP(right)->aopu.aop_lit);
+ if ( regsInCommon(left, result) || regsInCommon(right, result) )
+ preserve_result = 1;
+
+ if(result && !preserve_result)
+ {
+ int i;
+ for(i = 0; i < AOP_SIZE(result); i++)
+ pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),i));
+ }
+
+
/* if the right side is a literal then anything goes */
if (AOP_TYPE(right) == AOP_LIT &&
AOP_TYPE(left) != AOP_DIR ) {
switch(size) {
case 2:
genc16bit2lit(left, lit, 0);
- emitSKPNZ;
+ emitSKPZ;
pic16_emitpcode(POC_GOTO,pic16_popGetLabel(lbl->key));
break;
default:
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
while (size--) {
if(lit & 0xff) {
pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offset));
pic16_emitpcode(POC_MOVF,pic16_popGet(AOP(left),offset));
}
- emitSKPNZ;
+ emitSKPZ;
pic16_emitpcode(POC_GOTO,pic16_popGetLabel(lbl->key));
offset++;
if(res_offset < res_size-1)
int lbl_key = lbl->key;
if(result) {
- pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),res_offset));
+ // pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),res_offset));
//pic16_emitpcode(POC_INCF,pic16_popGet(AOP(result),res_offset));
}else {
DEBUGpic16_emitcode ("; ***","%s %d -- ERROR",__FUNCTION__,__LINE__);
__FUNCTION__,__LINE__);
return;
}
-
+
/* switch(size) { */
/* case 2: */
/* genc16bit2lit(left, lit, 0); */
break;
case 1:
pic16_emitpcode(POC_DECFSZW,pic16_popGet(AOP(left),offset));
- pic16_emitpcode(POC_INCF,pic16_popGet(AOP(result),res_offset));
- //pic16_emitpcode(POC_GOTO,pic16_popGetLabel(lbl->key));
+ //pic16_emitpcode(POC_INCF,pic16_popGet(AOP(result),res_offset));
+ pic16_emitpcode(POC_GOTO,pic16_popGetLabel(lbl->key));
emit_skip=0;
break;
case 0xff:
}
}
- pic16_emitpcode(POC_INCF,pic16_popGet(AOP(result),res_offset));
+ if(result && preserve_result)
+ {
+ int i;
+ for(i = 0; i < AOP_SIZE(result); i++)
+ pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),i));
+ }
+
+ pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result), 0));
+
+ if(result && preserve_result)
+ pic16_emitpcode(POC_GOTO,pic16_popGetLabel(lbl_done->key));
+
if(!rIfx.condition)
pic16_emitpcode(POC_GOTO,pic16_popGetLabel(rIfx.lbl->key));
pic16_emitpLabel(lbl->key);
+ if(result && preserve_result)
+ {
+ int i;
+ for(i = 0; i < AOP_SIZE(result); i++)
+ pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),i));
+
+ pic16_emitpLabel(lbl_done->key);
+ }
+
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
if(ifx)
}
+#if 0
+ /* the code below is completely untested
+ * it just allows ulong2fs.c compile -- VR */
+
+ ic = ic->next;
+ fprintf(stderr, "WARNING (%s:%s:%d) untested hack might produce wrong code\n",
+ __FILE__, __FUNCTION__, __LINE__);
+
+ /* if this has register type condition and
+ the next instruction is ifx with the same operand
+ and live to of the operand is upto the ifx only then */
+ if (ic->next &&
+ ic->next->op == IFX &&
+ IC_COND(ic->next)->key == op->key &&
+ OP_SYMBOL(op)->liveTo <= ic->next->seq )
+ return ic->next;
+
+ if (ic->next &&
+ ic->next->op == IFX &&
+ IC_COND(ic->next)->key == op->key) {
+ DEBUGpic16_emitcode ("; WARNING ","%d IGNORING liveTo range in %s",__LINE__,__FUNCTION__);
+ return ic->next;
+ }
+
+ fprintf(stderr, "WARNING (%s:%s:%d) untested hack might produce wrong code (returning NULL)\n",
+ __FILE__, __FUNCTION__, __LINE__);
+
+// return ic->next->next; /* this just might work */ /* FIXME FIXME */
+#endif
return NULL;
}
/*-----------------------------------------------------------------*/
/*-----------------------------------------------------------------*/
static void genInline (iCode *ic)
{
- char *buffer, *bp, *bp1;
+ char *buffer, *bp, *bp1;
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- _G.inLine += (!options.asmpeep);
+ _G.inLine += (!options.asmpeep);
- buffer = bp = bp1 = Safe_calloc(1, strlen(IC_INLINE(ic))+1);
- strcpy(buffer,IC_INLINE(ic));
+ buffer = bp = bp1 = Safe_calloc(1, strlen(IC_INLINE(ic))+1);
+ strcpy(buffer,IC_INLINE(ic));
- /* emit each line as a code */
- while (*bp) {
- if (*bp == '\n') {
- *bp++ = '\0';
+// fprintf(stderr, "%s:%d inline asm : < %s >\n", __FILE__, __LINE__, buffer);
+
+ /* emit each line as a code */
+ while (*bp) {
+ if (*bp == '\n') {
+ *bp++ = '\0';
+
+ if(*bp1)
+ pic16_addpCode2pBlock(pb, pic16_newpCodeAsmDir(bp1, NULL)); // inline directly, no process
+ bp1 = bp;
+ } else {
+ if (*bp == ':') {
+ bp++;
+ *bp = '\0';
+ bp++;
+
+ /* print label, use this special format with NULL directive
+ * to denote that the argument should not be indented with tab */
+ pic16_addpCode2pBlock(pb, pic16_newpCodeAsmDir(NULL, bp1)); // inline directly, no process
+ bp1 = bp;
+ } else
+ bp++;
+ }
+ }
+
+ if ((bp1 != bp) && *bp1)
+ pic16_addpCode2pBlock(pb, pic16_newpCodeAsmDir(bp1, NULL)); // inline directly, no process
- if(*bp1)
- pic16_addpCode2pBlock(pb, pic16_newpCodeAsmDir(bp1, NULL)); //pic16_AssembleLine(bp1, 0));
- // inline directly, no process
- bp1 = bp;
- } else {
- if (*bp == ':') {
- bp++;
- *bp = '\0';
- bp++;
- pic16_emitcode(bp1,"");
- bp1 = bp;
- } else
- bp++;
- }
- }
- if ((bp1 != bp) && *bp1)
- pic16_addpCode2pBlock(pb, pic16_newpCodeAsmDir(bp1, NULL)); //pic16_AssembleLine(bp1, 0));
Safe_free(buffer);
pic16_freeAsmop(result,NULL,ic,TRUE);
}
+
+/* gpasm can get the highest order bit with HIGH/UPPER
+ * so the following probably is not needed -- VR */
+
/*-----------------------------------------------------------------*/
/* genGetHbit - generates code get highest order bit */
/*-----------------------------------------------------------------*/
/*-----------------------------------------------------------------*/
static void AccLsh (int shCount)
{
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- switch(shCount){
- case 0 :
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ switch(shCount){
+ case 0 :
return;
- break;
- case 1 :
- pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- case 2 :
- pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- case 3 :
- pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
- pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- case 4 :
- pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- case 5 :
- pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
- pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- case 6 :
- pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- case 7 :
- pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- }
- pic16_emitpcode(POC_ANDLW,pic16_popGetLit(SLMask[shCount]));
+ break;
+ case 1 :
+ pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ break;
+ case 2 :
+ pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ break;
+ case 3 :
+ pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
+ pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ break;
+ case 4 :
+ pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
+ break;
+ case 5 :
+ pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
+ pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ break;
+ case 6 :
+ pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ break;
+ case 7 :
+ pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ break;
+ }
+ pic16_emitpcode(POC_ANDLW,pic16_popGetLit(SLMask[shCount]));
}
/*-----------------------------------------------------------------*/
/* AccRsh - right shift accumulator by known count */
/*-----------------------------------------------------------------*/
-static void AccRsh (int shCount)
+static void AccRsh (int shCount, int andmask)
{
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- switch(shCount){
- case 0 :
- return;
- break;
- case 1 :
- pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- case 2 :
- pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- case 3 :
- pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
- pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- case 4 :
- pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- case 5 :
- pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
- pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- case 6 :
- pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- case 7 :
- pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
- break;
- }
- pic16_emitpcode(POC_ANDLW,pic16_popGetLit(SRMask[shCount]));
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ switch(shCount){
+ case 0 :
+ return; break;
+ case 1 :
+ pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+// andmask = 0; /* no need */
+ break;
+ case 2 :
+ pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+// andmask = 0; /* no need */
+ break;
+ case 3 :
+ pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
+ pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ break;
+ case 4 :
+ pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
+ break;
+ case 5 :
+ pic16_emitpcode(POC_SWAPFW,pic16_popCopyReg(&pic16_pc_wreg));
+ pic16_emitpcode(POC_RRNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ break;
+ case 6 :
+ pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ break;
+ case 7 :
+ pic16_emitpcode(POC_RLNCFW,pic16_popCopyReg(&pic16_pc_wreg));
+ break;
+ }
+
+ if(andmask)
+ pic16_emitpcode(POC_ANDLW,pic16_popGetLit(SRMask[shCount]));
+ else
+ DEBUGpic16_emitcode("; ***", "%s omitting masking the result", __FUNCTION__);
}
#if 0
pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),offl));
/* shift right accumulator */
- AccRsh(shCount);
+ AccRsh(shCount, 1);
/* or with result */
/* back to result */
pic16_emitpcode(POC_IORWF,pic16_popGet(AOP(result),offr));
sym_link *etype;
int offset = 0 ;
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- etype = getSpec(operandType(result));
-
- /* read the first byte */
- switch (ptype) {
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ etype = getSpec(operandType(result));
- case POINTER:
- case IPOINTER:
- pic16_emitcode("mov","a,@%s",rname);
- break;
-
- case PPOINTER:
- pic16_emitcode("movx","a,@%s",rname);
- break;
+ /* read the first byte */
+ switch (ptype) {
+ case POINTER:
+ case IPOINTER:
+ case PPOINTER:
+ case FPOINTER:
+ case GPOINTER:
+ pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_indf0));
+ break;
+ case CPOINTER:
+ pic16_emitcode("clr","a");
+ pic16_emitcode("movc","a","@a+dptr");
+ break;
+ }
- case FPOINTER:
- pic16_emitcode("movx","a,@dptr");
- break;
- case CPOINTER:
- pic16_emitcode("clr","a");
- pic16_emitcode("movc","a","@a+dptr");
- break;
+ /* if we have bitdisplacement then it fits */
+ /* into this byte completely or if length is */
+ /* less than a byte */
+ if ((shCnt = SPEC_BSTR(etype)) ||
+ (SPEC_BLEN(etype) <= 8)) {
- case GPOINTER:
- pic16_emitcode("lcall","__gptrget");
- break;
- }
+ /* shift right acc */
+ AccRsh(shCnt, 0);
- /* if we have bitdisplacement then it fits */
- /* into this byte completely or if length is */
- /* less than a byte */
- if ((shCnt = SPEC_BSTR(etype)) ||
- (SPEC_BLEN(etype) <= 8)) {
+ pic16_emitpcode(POC_ANDLW, pic16_popGetLit(
+ (((unsigned char) -1)>>(8 - SPEC_BLEN(etype))) & SRMask[ shCnt ]));
+
+/* VR -- normally I would use the following, but since we use the hack,
+ * to avoid the masking from AccRsh, why not mask it right now? */
+
+/*
+ pic16_emitpcode(POC_ANDLW, pic16_popGetLit(((unsigned char) -1)>>(8 - SPEC_BLEN(etype))));
+*/
+
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 0));
+ return ;
+ }
- /* shift right acc */
- AccRsh(shCnt);
- pic16_emitcode("anl","a,#0x%02x",
- ((unsigned char) -1)>>(8 - SPEC_BLEN(etype)));
- pic16_aopPut(AOP(result),"a",offset);
- return ;
- }
+
+ fprintf(stderr, "SDCC pic16 port error: the port currently does not support\n");
+ fprintf(stderr, "bitfields of size >=8. Instead of generating wrong code, bailling out...\n");
+ exit(-1);
/* bit field did not fit in a byte */
rlen = SPEC_BLEN(etype) - 8;
return ;
}
-#if 0
-/*-----------------------------------------------------------------*/
-/* genDataPointerGet - generates code when ptr offset is known */
-/*-----------------------------------------------------------------*/
-static void genDataPointerGet (operand *left,
- operand *result,
- iCode *ic)
+
+static void genDataPointerGet(operand *left,
+ operand *result,
+ iCode *ic)
{
- int size , offset = 0;
+ int size, offset = 0, leoffset=0 ;
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ pic16_aopOp(result, ic, FALSE);
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ size = AOP_SIZE(result);
+// fprintf(stderr, "%s:%d size= %d\n", __FILE__, __LINE__, size);
- /* optimization - most of the time, left and result are the same
- * address, but different types. for the pic code, we could omit
- * the following
- */
+#if 0
+ /* The following tests may save a redudant movff instruction when
+ * accessing unions */
+
+ /* if they are the same */
+ if (operandsEqu (left, result)) {
+ DEBUGpic16_emitcode("; ***", "left and result operands are equ/same");
+ goto release;
+ }
+#endif
- pic16_aopOp(result,ic,TRUE);
+#if 0
+ /* if they are the same registers */
+ if (pic16_sameRegs(AOP(left),AOP(result))) {
+ DEBUGpic16_emitcode("; ***", "left and result registers are same");
+ goto release;
+ }
+#endif
- DEBUGpic16_pic16_AopType(__LINE__,left,NULL,result);
+#if 0
+ if ( AOP_TYPE(left) == AOP_PCODE) {
+ fprintf(stderr,"genDataPointerGet %s, %d\n",
+ AOP(left)->aopu.pcop->name,
+ (AOP(left)->aopu.pcop->type == PO_DIR)?
+ PCOR(AOP(left)->aopu.pcop)->instance:
+ PCOI(AOP(left)->aopu.pcop)->offset);
+ }
+#endif
+
+ if(AOP(left)->aopu.pcop->type == PO_DIR)
+ leoffset=PCOR(AOP(left)->aopu.pcop)->instance;
+
+ DEBUGpic16_pic16_AopType(__LINE__,left,NULL,result);
- pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),0));
+ while (size--) {
+ DEBUGpic16_emitcode("; ***", "%s loop offset=%d leoffset=%d", __FUNCTION__, offset, leoffset);
+
+ if(AOP(result)->aopu.pcop->type == PO_IMMEDIATE
+ || AOP(left)->aopu.pcop->type == PO_IMMEDIATE) {
+ mov2w(AOP(left), offset); // patch 8
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), offset));
+ } else {
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
+ pic16_popGet(AOP(left), offset), //patch 8
+ pic16_popGet(AOP(result), offset)));
+ }
- size = AOP_SIZE(result);
+ offset++;
+ leoffset++;
+ }
- while (size--) {
- pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset));
- offset++;
- }
+//release:
+ pic16_freeAsmop(result,NULL,ic,TRUE);
+}
- pic16_freeAsmop(left,NULL,ic,TRUE);
- pic16_freeAsmop(result,NULL,ic,TRUE);
+void pic16_loadFSR0(operand *op)
+{
+ pic16_emitpcode(POC_LFSR, pic16_popGetLit2(0, pic16_popGet(AOP(op), 0)));
}
-#endif
+
+
/*-----------------------------------------------------------------*/
/* genNearPointerGet - pic16_emitcode for near pointer fetch */
/*-----------------------------------------------------------------*/
{
asmop *aop = NULL;
//regs *preg = NULL ;
- char *rname ;
sym_link *rtype, *retype;
sym_link *ltype = operandType(left);
- //char buffer[80];
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
-
- rtype = operandType(result);
- retype= getSpec(rtype);
-
- pic16_aopOp(left,ic,FALSE);
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ rtype = operandType(result);
+ retype= getSpec(rtype);
- /* if left is rematerialisable and
- result is not bit variable type and
- the left is pointer to data space i.e
- lower 128 bytes of space */
- if (AOP_TYPE(left) == AOP_PCODE && //AOP_TYPE(left) == AOP_IMMD &&
- !IS_BITVAR(retype) &&
- DCL_TYPE(ltype) == POINTER) {
- //genDataPointerGet (left,result,ic);
- return ;
- }
+ pic16_aopOp(left,ic,FALSE);
+
+ pic16_DumpOp("(left)",left);
+ pic16_DumpOp("(result)",result);
+
+ /* if left is rematerialisable and
+ * result is not bit variable type and
+ * the left is pointer to data space i.e
+ * lower 128 bytes of space */
+ if (AOP_TYPE(left) == AOP_PCODE
+ && !IS_BITFIELD(retype)
+ && DCL_TYPE(ltype) == POINTER) {
+
+ genDataPointerGet (left,result,ic);
+ pic16_freeAsmop(left, NULL, ic, TRUE);
+ return ;
+ }
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
/* if the value is already in a pointer register
- then don't need anything more */
- if (!AOP_INPREG(AOP(left))) {
- /* otherwise get a free pointer register */
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
-/*
- aop = newAsmop(0);
- preg = getFreePtr(ic,&aop,FALSE);
- pic16_emitcode("mov","%s,%s",
- preg->name,
- pic16_aopGet(AOP(left),0,FALSE,TRUE));
- rname = preg->name ;
-*/
- rname ="BAD";
- } else
- rname = pic16_aopGet(AOP(left),0,FALSE,FALSE);
+ * then don't need anything more */
+ if (!AOP_INPREG(AOP(left))) {
+ /* otherwise get a free pointer register */
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+
+ /* VR -- the whole concept is to load FSR0 with the address of the symbol */
+ if( (AOP_TYPE(left) == AOP_PCODE)
+ && ((AOP(left)->aopu.pcop->type == PO_IMMEDIATE)
+ || (AOP(left)->aopu.pcop->type == PO_DIR))) // patch 10
+ {
+ pic16_loadFSR0( left ); // patch 10
+ } else {
+ // set up FSR0 with address from left
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(left),0), pic16_popCopyReg(&pic16_pc_fsr0l))); // patch 10
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(left),1), pic16_popCopyReg(&pic16_pc_fsr0h))); // patch 10
+ }
+ }
+// else
+// rname = pic16_aopGet(AOP(left),0,FALSE,FALSE);
- pic16_aopOp (result,ic,FALSE);
+ pic16_aopOp (result,ic,FALSE);
/* if bitfield then unpack the bits */
if (IS_BITFIELD(retype))
- genUnpackBits (result,rname,POINTER);
+ genUnpackBits (result, NULL, POINTER);
else {
/* we have can just get the values */
int size = AOP_SIZE(result);
- int offset = 0 ;
+ int offset = 0;
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),0));
- pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_fsr0));
+
+ /* fsr0 is loaded already -- VR */
+// pic16_loadFSR0( left );
+
+// pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(left),0));
+// pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_fsr0));
while(size--) {
- pic16_emitpcode(POC_MOVFW,pic16_popCopyReg(&pic16_pc_indf0));
- pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offset++));
+
+ if(size) {
+ pic16_emitpcode(POC_MOVFF,
+ pic16_popGet2p(pic16_popCopyReg(&pic16_pc_indf0),
+ pic16_popGet(AOP(result), offset++)));
+ } else {
+ pic16_emitpcode(POC_MOVFF,
+ pic16_popGet2p(pic16_popCopyReg(&pic16_pc_postinc0),
+ pic16_popGet(AOP(result), offset++)));
+ }
+ }
+#if 0
+// pic16_emitpcode(POC_MOVFW,pic16_popCopyReg(&pic16_pc_postinc0));
+// pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),offset++));
if(size)
pic16_emitpcode(POC_INCF,pic16_popCopyReg(&pic16_pc_fsr0));
- }
+#endif
/*
while (size--) {
if (IS_AOP_PREG(result) || AOP_TYPE(result) == AOP_STK ) {
!OP_SYMBOL(left)->remat &&
( OP_SYMBOL(left)->liveTo > ic->seq ||
ic->depth )) {
- int size = AOP_SIZE(result) - 1;
- while (size--)
- pic16_emitcode("dec","%s",rname);
+// int size = AOP_SIZE(result) - 1;
+// while (size--)
+// pic16_emitcode("dec","%s",rname);
}
}
static void genGenPointerGet (operand *left,
operand *result, iCode *ic)
{
- int size, offset, lit;
- sym_link *retype = getSpec(operandType(result));
+ int size, offset, lit;
+ sym_link *retype = getSpec(operandType(result));
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
pic16_aopOp(left,ic,FALSE);
lit = (unsigned)floatFromVal(AOP(left)->aopu.aop_lit);
// load FSR0 from immediate
pic16_emitpcode(POC_LFSR,pic16_popGetLit2(0,pic16_popGetLit(lit)));
+
+// pic16_loadFSR0( left );
+
offset = 0;
while(size--) {
if(size) {
operand *result, iCode *ic)
{
//sym_link *retype = getSpec(operandType(result));
- symbol *albl = newiTempLabel(NULL);
- symbol *blbl = newiTempLabel(NULL);
- PIC_OPCODE poc;
+ // symbol *albl = newiTempLabel(NULL); // patch 15
+ // symbol *blbl = newiTempLabel(NULL); //
+ // PIC_OPCODE poc; // patch 15
+ int size;
+ int offset = 0;
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
pic16_aopOp(left,ic,FALSE);
- pic16_aopOp(result,ic,FALSE);
-
+ pic16_aopOp(result,ic,TRUE);
+ size = AOP_SIZE(result);
DEBUGpic16_pic16_AopType(__LINE__,left,NULL,result);
DEBUGpic16_emitcode ("; "," %d getting const pointer",__LINE__);
-
+#if 0 // patch 15
pic16_emitpcode(POC_CALL,pic16_popGetLabel(albl->key));
pic16_emitpcode(POC_GOTO,pic16_popGetLabel(blbl->key));
pic16_emitpLabel(albl->key);
pic16_emitpLabel(blbl->key);
pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),0));
+#endif // patch 15
+
+
+ // set up table pointer
+ if( (AOP_TYPE(left) == AOP_PCODE)
+ && ((AOP(left)->aopu.pcop->type == PO_IMMEDIATE)
+ || (AOP(left)->aopu.pcop->type == PO_DIR))) // patch 15 ......
+ {
+ pic16_emitpcode(POC_MOVLW,pic16_popGet(AOP(left),0));
+ pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_tblptrl));
+ pic16_emitpcode(POC_MOVLW,pic16_popGet(AOP(left),1));
+ pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_tblptrh));
+ pic16_emitpcode(POC_MOVLW,pic16_popGet(AOP(left),2));
+ pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_tblptru));
+ }
+ else
+ {
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(left),0), pic16_popCopyReg(&pic16_pc_tblptrl)));
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(left),1), pic16_popCopyReg(&pic16_pc_tblptrh)));
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(left),2), pic16_popCopyReg(&pic16_pc_tblptru)));
+ }
+ while(size--)
+ {
+ pic16_emitpcodeNULLop(POC_TBLRD_POSTINC);
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_tablat), pic16_popGet(AOP(result),offset)));
+ offset++;
+ }
+ // .... patch 15
pic16_freeAsmop(left,NULL,ic,TRUE);
pic16_freeAsmop(result,NULL,ic,TRUE);
operand *right ,
char *rname, int p_type)
{
- int shCount = 0 ;
- int offset = 0 ;
- int rLen = 0 ;
- int blen, bstr ;
- char *l ;
+ int shCnt = 0 ;
+ int offset = 0 ;
+ int rLen = 0 ;
+ int blen, bstr ;
+ char *l ;
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- blen = SPEC_BLEN(etype);
- bstr = SPEC_BSTR(etype);
-
- l = pic16_aopGet(AOP(right),offset++,FALSE,FALSE);
- MOVA(l);
-
- /* if the bit lenth is less than or */
- /* it exactly fits a byte then */
- if (SPEC_BLEN(etype) <= 8 ) {
- shCount = SPEC_BSTR(etype) ;
-
- /* shift left acc */
- AccLsh(shCount);
-
- if (SPEC_BLEN(etype) < 8 ) { /* if smaller than a byte */
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ blen = SPEC_BLEN(etype);
+ bstr = SPEC_BSTR(etype);
+ if(AOP_TYPE(right) == AOP_LIT) {
+ pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right), 0));
+ offset++;
+ } else
+ pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right), offset++));
- switch (p_type) {
- case POINTER:
- pic16_emitcode ("mov","b,a");
- pic16_emitcode("mov","a,@%s",rname);
- break;
+/* l = pic16_aopGet(AOP(right),offset++,FALSE,FALSE);
+ MOVA(l);
+*/
+ /* if the bit lenth is less than or */
+ /* it exactly fits a byte then */
+ if((shCnt=SPEC_BSTR(etype))
+ || SPEC_BLEN(etype) <= 8 ) {
+
+ /* shift left acc */
+ AccLsh(shCnt);
+
+ /* using PRODL as a temporary register here */
+ pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_prodl));
+
+ switch (p_type) {
+ case FPOINTER:
+ case POINTER:
+ case GPOINTER:
+ pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_indf0));
+// pic16_emitcode ("mov","b,a");
+// pic16_emitcode("mov","a,@%s",rname);
+ break;
+ }
+#if 1
+ pic16_emitpcode(POC_ANDLW, pic16_popGetLit(
+ (unsigned char)((unsigned char)(0xff << (blen+bstr)) |
+ (unsigned char)(0xff >> (8-bstr))) ));
+ pic16_emitpcode(POC_IORFW, pic16_popCopyReg(&pic16_pc_prodl));
+ pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_indf0));
+#endif
- case FPOINTER:
- pic16_emitcode ("mov","b,a");
- pic16_emitcode("movx","a,@dptr");
- break;
+#if 0
+ pic16_emitcode ("anl","a,#0x%02x",(unsigned char)
+ ((unsigned char)(0xFF << (blen+bstr)) |
+ (unsigned char)(0xFF >> (8-bstr)) ) );
+ pic16_emitcode ("orl","a,b");
+ if (p_type == GPOINTER)
+ pic16_emitcode("pop","b");
- case GPOINTER:
- pic16_emitcode ("push","b");
- pic16_emitcode ("push","acc");
- pic16_emitcode ("lcall","__gptrget");
- pic16_emitcode ("pop","b");
- break;
- }
+
+ switch (p_type) {
+ case POINTER:
+ pic16_emitcode("mov","@%s,a",rname);
+ break;
+ case FPOINTER:
+ pic16_emitcode("movx","@dptr,a");
+ break;
+ case GPOINTER:
+ DEBUGpic16_emitcode(";lcall","__gptrput");
+ break;
+ }
+#endif
- pic16_emitcode ("anl","a,#0x%02x",(unsigned char)
- ((unsigned char)(0xFF << (blen+bstr)) |
- (unsigned char)(0xFF >> (8-bstr)) ) );
- pic16_emitcode ("orl","a,b");
- if (p_type == GPOINTER)
- pic16_emitcode("pop","b");
- }
- }
+ return;
+ }
- switch (p_type) {
- case POINTER:
- pic16_emitcode("mov","@%s,a",rname);
- break;
- case FPOINTER:
- pic16_emitcode("movx","@dptr,a");
- break;
+ fprintf(stderr, "SDCC pic16 port error: the port currently does not support\n");
+ fprintf(stderr, "bitfields of size >=8. Instead of generating wrong code, bailling out...\n");
+ exit(-1);
- case GPOINTER:
- DEBUGpic16_emitcode(";lcall","__gptrput");
- break;
- }
/* if we r done */
if ( SPEC_BLEN(etype) <= 8 )
pic16_emitcode("inc","%s",rname);
rLen = SPEC_BLEN(etype) ;
+
+
/* now generate for lengths greater than one byte */
while (1) {
operand *result,
iCode *ic)
{
- int size, offset = 0 ;
- char *l, buffer[256];
+ int size, offset = 0, resoffset=0 ;
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
pic16_aopOp(right,ic,FALSE);
-
- l = pic16_aopGet(AOP(result),0,FALSE,TRUE);
+
size = AOP_SIZE(right);
-/*
+
+// fprintf(stderr, "%s:%d size= %d\n", __FILE__, __LINE__, size);
+
+#if 0
if ( AOP_TYPE(result) == AOP_PCODE) {
fprintf(stderr,"genDataPointerSet %s, %d\n",
AOP(result)->aopu.pcop->name,
+ (AOP(result)->aopu.pcop->type == PO_DIR)?
+ PCOR(AOP(result)->aopu.pcop)->instance:
PCOI(AOP(result)->aopu.pcop)->offset);
}
-*/
-
- // tsd, was l+1 - the underline `_' prefix was being stripped
- while (size--) {
- if (offset) {
- sprintf(buffer,"(%s + %d)",l,offset);
- fprintf(stderr,"%s:%d: oops %s\n",__FILE__, __LINE__, buffer);
- } else
- sprintf(buffer,"%s",l);
-
- if (AOP_TYPE(right) == AOP_LIT) {
- unsigned int lit = (unsigned int) floatFromVal (AOP(IC_RIGHT(ic))->aopu.aop_lit);
- lit = lit >> (8*offset);
- if(lit&0xff) {
- pic16_emitcode("movlw","%d",lit);
- pic16_emitcode("movwf","%s",buffer);
-
- pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit&0xff));
- //pic16_emitpcode(POC_MOVWF, pic16_popRegFromString(buffer));
- pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0));
+#endif
- } else {
- pic16_emitcode("clrf","%s",buffer);
- //pic16_emitpcode(POC_CLRF, pic16_popRegFromString(buffer));
- pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),0));
- }
- }else {
- pic16_emitcode("movf","%s,w",pic16_aopGet(AOP(right),offset,FALSE,FALSE));
- pic16_emitcode("movwf","%s",buffer);
+ if(AOP(result)->aopu.pcop->type == PO_DIR)
+ resoffset=PCOR(AOP(result)->aopu.pcop)->instance;
- pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),offset));
- //pic16_emitpcode(POC_MOVWF, pic16_popRegFromString(buffer));
- pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0));
+ while (size--) {
+ if (AOP_TYPE(right) == AOP_LIT) {
+ unsigned int lit = (unsigned int) floatFromVal (AOP(IC_RIGHT(ic))->aopu.aop_lit);
+ lit = lit >> (8*offset);
+ if(lit&0xff) {
+ pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit&0xff));
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset)); // pstch 8
+ } else {
+ pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offset)); // patch 8
+ }
+ } else {
+ mov2w(AOP(right), offset);
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset)); // patch 8
+ }
+ offset++;
+ resoffset++;
}
- offset++;
- }
-
pic16_freeAsmop(right,NULL,ic,TRUE);
- pic16_freeAsmop(result,NULL,ic,TRUE);
}
+
+
/*-----------------------------------------------------------------*/
-/* genNearPointerSet - pic16_emitcode for near pointer put */
+/* genNearPointerSet - pic16_emitcode for near pointer put */
/*-----------------------------------------------------------------*/
static void genNearPointerSet (operand *right,
operand *result,
char *l;
sym_link *retype;
sym_link *ptype = operandType(result);
-
+ sym_link *resetype;
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- retype= getSpec(operandType(right));
-
- pic16_aopOp(result,ic,FALSE);
-
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ retype= getSpec(operandType(right));
+ resetype = getSpec(operandType(result));
+
+ pic16_aopOp(result,ic,FALSE);
- /* if the result is rematerializable &
- in data space & not a bit variable */
- //if (AOP_TYPE(result) == AOP_IMMD &&
- if (AOP_TYPE(result) == AOP_PCODE && //AOP_TYPE(result) == AOP_IMMD &&
- DCL_TYPE(ptype) == POINTER &&
- !IS_BITVAR(retype)) {
- genDataPointerSet (right,result,ic);
- pic16_freeAsmop(result,NULL,ic,TRUE);
- return;
- }
+ /* if the result is rematerializable &
+ * in data space & not a bit variable */
+
+ /* and result is not a bit variable */
+ if (AOP_TYPE(result) == AOP_PCODE
+// && AOP_TYPE(result) == AOP_IMMD
+ && DCL_TYPE(ptype) == POINTER
+ && !IS_BITFIELD(retype)
+ && !IS_BITFIELD(resetype)) {
+
+ genDataPointerSet (right,result,ic);
+ pic16_freeAsmop(result,NULL,ic,TRUE);
+ return;
+ }
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- pic16_aopOp(right,ic,FALSE);
- DEBUGpic16_pic16_AopType(__LINE__,NULL,right,result);
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ pic16_aopOp(right,ic,FALSE);
+ DEBUGpic16_pic16_AopType(__LINE__,NULL,right,result);
- /* if the value is already in a pointer register
- then don't need anything more */
- if (!AOP_INPREG(AOP(result))) {
- /* otherwise get a free pointer register */
- //aop = newAsmop(0);
- //preg = getFreePtr(ic,&aop,FALSE);
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- //pic16_emitcode("mov","%s,%s",
- // preg->name,
- // pic16_aopGet(AOP(result),0,FALSE,TRUE));
- //rname = preg->name ;
- //pic16_emitcode("movwf","fsr0");
- pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(result),0));
- pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_fsr0));
- pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),0));
- pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_indf0));
- goto release;
+ /* if the value is already in a pointer register
+ * then don't need anything more */
+ if (!AOP_INPREG(AOP(result))) {
+ /* otherwise get a free pointer register */
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+
+ if( (AOP_TYPE(result) == AOP_PCODE)
+ && ((AOP(result)->aopu.pcop->type == PO_IMMEDIATE)
+ || (AOP(result)->aopu.pcop->type == PO_DIR))) // patch 10
+ {
+ pic16_loadFSR0( result ); // patch 10
+ } else {
+ // set up FSR0 with address of result
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(result),0), pic16_popCopyReg(&pic16_pc_fsr0l))); // patch 10
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(result),1), pic16_popCopyReg(&pic16_pc_fsr0h))); // patch 10
+ }
- }// else
+ }
+// else
// rname = pic16_aopGet(AOP(result),0,FALSE,FALSE);
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- /* if bitfield then unpack the bits */
- if (IS_BITFIELD(retype)) {
- werror(E_INTERNAL_ERROR,__FILE__,__LINE__,
- "The programmer is obviously confused");
-// genPackBits (retype,right,"BAD",POINTER);
- exit(1);
- }
- else {
- /* we have can just get the values */
- int size = AOP_SIZE(right);
- int offset = 0 ;
+ /* if bitfield then unpack the bits */
+ if (IS_BITFIELD(resetype)) {
+ genPackBits (resetype, right, NULL, POINTER);
+ } else {
+ /* we have can just get the values */
+ int size = AOP_SIZE(right);
+ int offset = 0 ;
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- while (size--) {
- l = pic16_aopGet(AOP(right),offset,FALSE,TRUE);
- if (*l == '@' ) {
- //MOVA(l);
- //pic16_emitcode("mov","@%s,a",rname);
- pic16_emitcode("movf","indf0,w ;1");
- } else {
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ while (size--) {
+ l = pic16_aopGet(AOP(right),offset,FALSE,TRUE);
+ if (*l == '@' ) {
+ //MOVA(l);
+ //pic16_emitcode("mov","@%s,a",rname);
+ pic16_emitcode("movf","indf0,w ;1");
+ } else {
- if (AOP_TYPE(right) == AOP_LIT) {
- unsigned int lit = (unsigned int) floatFromVal (AOP(IC_RIGHT(ic))->aopu.aop_lit);
- if(lit) {
- pic16_emitcode("movlw","%s",l);
- pic16_emitcode("movwf","indf0 ;2");
- } else
- pic16_emitcode("clrf","indf0");
- }else {
- pic16_emitcode("movf","%s,w",l);
- pic16_emitcode("movwf","indf0 ;2");
- }
- //pic16_emitcode("mov","@%s,%s",rname,l);
- }
- if (size)
- pic16_emitcode("incf","fsr0,f ;3");
- //pic16_emitcode("inc","%s",rname);
- offset++;
- }
- }
+ if (AOP_TYPE(right) == AOP_LIT) { // patch 10
+ pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),offset)); //
+ if (size) { //
+ pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_postinc0)); //
+ } else { //
+ pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_indf0)); //
+ } //
+ } else { // no literal //
+ if(size) { //
+ pic16_emitpcode(POC_MOVFF, //
+ pic16_popGet2p(pic16_popGet(AOP(right),offset), //
+ pic16_popCopyReg(&pic16_pc_postinc0))); //
+ } else { //
+ pic16_emitpcode(POC_MOVFF, //
+ pic16_popGet2p(pic16_popGet(AOP(right),offset), //
+ pic16_popCopyReg(&pic16_pc_indf0))); //
+ } //
+ } // patch 10
+ }
+ offset++;
+ }
+ }
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- /* now some housekeeping stuff */
- if (aop) {
- /* we had to allocate for this iCode */
- pic16_freeAsmop(NULL,aop,ic,TRUE);
- } else {
- /* we did not allocate which means left
- already in a pointer register, then
- if size > 0 && this could be used again
- we have to point it back to where it
- belongs */
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- if (AOP_SIZE(right) > 1 &&
- !OP_SYMBOL(result)->remat &&
- ( OP_SYMBOL(result)->liveTo > ic->seq ||
- ic->depth )) {
- int size = AOP_SIZE(right) - 1;
- while (size--)
- pic16_emitcode("decf","fsr0,f");
- //pic16_emitcode("dec","%s",rname);
- }
- }
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ /* now some housekeeping stuff */
+ if (aop) {
+ /* we had to allocate for this iCode */
+ pic16_freeAsmop(NULL,aop,ic,TRUE);
+ } else {
+ /* we did not allocate which means left
+ * already in a pointer register, then
+ * if size > 0 && this could be used again
+ * we have to point it back to where it
+ * belongs */
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ if (AOP_SIZE(right) > 1
+ && !OP_SYMBOL(result)->remat
+ && ( OP_SYMBOL(result)->liveTo > ic->seq
+ || ic->depth )) {
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- /* done */
- release:
- pic16_freeAsmop(right,NULL,ic,TRUE);
- pic16_freeAsmop(result,NULL,ic,TRUE);
+ int size = AOP_SIZE(right) - 1;
+
+ while (size--)
+ pic16_emitcode("decf","fsr0,f");
+ //pic16_emitcode("dec","%s",rname);
+ }
+ }
+
+ DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
+ /* done */
+//release:
+ pic16_freeAsmop(right,NULL,ic,TRUE);
+ pic16_freeAsmop(result,NULL,ic,TRUE);
}
/*-----------------------------------------------------------------*/
static void genGenPointerSet (operand *right,
operand *result, iCode *ic)
{
- int size, offset, lit;
+ int i, size, offset, lit;
sym_link *retype = getSpec(operandType(right));
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
DEBUGpic16_pic16_AopType(__LINE__,NULL,right,result);
-
/* if the operand is already in dptr
then we do nothing else we move the value to dptr */
if (AOP_TYPE(result) != AOP_STR) {
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- while(size--) {
- if(size) {
- pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),offset), pic16_popCopyReg(&pic16_pc_postinc0)));
- } else {
- pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),offset), pic16_popCopyReg(&pic16_pc_indf0)));
+ if(AOP_TYPE(right) == AOP_LIT)
+ {
+ // copy literal
+ // note: pic16_popGet handles sign extension
+ for(i=0;i<size;i++) {
+ pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),i));
+ if(i < size-1)
+ pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_postinc0));
+ else
+ pic16_emitpcode(POC_MOVWF, pic16_popCopyReg(&pic16_pc_indf0));
+ }
+ } else {
+ // copy regs
+
+ for(i=0;i<size;i++) {
+ if(i < size-1)
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),i),
+ pic16_popCopyReg(&pic16_pc_postinc0)));
+ else
+ pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popGet(AOP(right),i),
+ pic16_popCopyReg(&pic16_pc_indf0)));
}
- offset++;
}
goto release;
}
// right = ACC
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
-
pic16_emitpcode(POC_MOVWF,pic16_popCopyReg(&pic16_pc_indf0));
goto release;
} // if (AOP_TYPE(result) != AOP_IMMD)
}
}
offset++;
- }
+ }
}
release:
/*-----------------------------------------------------------------*/
/* genAddrOf - generates code for address of */
/*-----------------------------------------------------------------*/
-#if 0
-static void genAddrOf (iCode *ic)
-{
- operand *right, *result, *left;
- int size, offset ;
-
- DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
-
-
- //pic16_aopOp(IC_RESULT(ic),ic,FALSE);
-
- pic16_aopOp((left=IC_LEFT(ic)),ic,FALSE);
- pic16_aopOp((right=IC_RIGHT(ic)),ic,FALSE);
- pic16_aopOp((result=IC_RESULT(ic)),ic,TRUE);
-
- DEBUGpic16_pic16_AopType(__LINE__,left,right,result);
-
- size = AOP_SIZE(IC_RESULT(ic));
- offset = 0;
-
-
- while (size--) {
- pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(left),offset));
- pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset));
- offset++;
- }
-
-
- pic16_freeAsmop(left,NULL,ic,FALSE);
- pic16_freeAsmop(result,NULL,ic,TRUE);
-
-}
-
-#else /* new genAddrOf */
-
static void genAddrOf (iCode *ic)
{
operand *result, *left;
pic16_freeAsmop(left, NULL, ic, FALSE);
}
-#endif /* new genAddrOf */
#if 0
/*-----------------------------------------------------------------*/
pic16_emitpcode(POC_BTFSS, pic16_popGet(AOP(right),0));
pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),0));
}
+ } else if ( (AOP_TYPE(right) == AOP_PCODE) && (AOP(right)->aopu.pcop->type == PO_IMMEDIATE) ) {
+ pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(right),offset));
+ pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset));
} else {
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
/* now depending on the sign of the destination */
size = AOP_SIZE(result) - AOP_SIZE(right);
/* if unsigned or not an integral type */
- if (SPEC_USIGN(rtype) || !IS_SPEC(rtype)) {
+ if (SPEC_USIGN( getSpec(rtype) ) || !IS_SPEC(rtype)) {
while (size--)
pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offset++));
} else {
{
DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
- if (isOperandInFarSpace(IC_RESULT(ic)) &&
+ if (isOperandInFarSpace(IC_RESULT(ic)) &&
( OP_SYMBOL(IC_RESULT(ic))->isspilt ||
IS_TRUE_SYMOP(IC_RESULT(ic))) ) {
_G.accInUse++;
pic16_aopOp(IC_RESULT(ic),ic,FALSE);
_G.accInUse--;
- assignResultValue(IC_RESULT(ic));
+ assignResultValue(IC_RESULT(ic), 0);
}
pic16_freeAsmop(IC_RESULT(ic),NULL,ic,TRUE);
}
#endif
-// dumpiCode(lic);
-
for (ic = lic ; ic ; ic = ic->next ) {
-// fprintf(stderr, "; VR = %c %x\n", ic->op, ic->op);
-// DEBUGpic16_emitcode("; VR", "");
DEBUGpic16_emitcode(";ic ", "\t%c 0x%x",ic->op, ic->op);
if ( cln != ic->lineno ) {
if ( options.debug ) {
}
if(options.iCodeInAsm) {
+ char *l;
/* insert here code to print iCode as comment */
- pic16_emitcomment("; ic:%d: %s", ic->seq, printILine(ic));
+ l = Safe_strdup(printILine(ic));
+ pic16_emitpcomment("ic:%d: %s", ic->seq, l);
}
/* if the result is marked as
projects / fw / sdcc / blobdiff