-------------------------------------------------------------------------*/
-//#define D(x)
-#define D(x) x
+#define D(x)
+//#define D(x) x
#include <stdio.h>
#include <stdlib.h>
char *aopLiteral (value * val, int offset);
char *aopLiteralLong (value * val, int offset, int size);
extern int allocInfo;
+static int pushReg (regs *reg, bool freereg);
+static void pullReg (regs *reg);
static char *zero = "#0x00";
static char *one = "#0x01";
int stackPushes;
short regsinuse;
set *sendSet;
+ iCode *current_iCode;
}
_G;
(lineHead = newLineNode (lb)));
lineCurr->isInline = _G.inLine;
lineCurr->isDebug = _G.debugLine;
+ lineCurr->ic = _G.current_iCode;
//printf("%s\n", lb);
va_end (ap);
emitcode ("", "%05d$:", (tlbl->key +100));
}
+/*-----------------------------------------------------------------*/
+/* hc08_emitDebuggerSymbol - associate the current code location */
+/* with a debugger symbol */
+/*-----------------------------------------------------------------*/
+void
+hc08_emitDebuggerSymbol (char * debugSym)
+{
+ _G.debugLine = 1;
+ emitcode ("", "%s ==.", debugSym);
+ _G.debugLine = 0;
+}
/*--------------------------------------------------------------------------*/
return;
}
- emitcode ("", "; transferRegReg(%s,%s)",
- sreg->name, dreg->name);
+ D(emitcode ("", "; transferRegReg(%s,%s)",
+ sreg->name, dreg->name));
srcidx = sreg->rIdx;
dstidx = dreg->rIdx;
switch (srcidx)
{
case H_IDX: /* H to A */
- emitcode ("pshh", "");
- emitcode ("pula", "");
+ pushReg (hc08_reg_h, FALSE);
+ pullReg (hc08_reg_a);
break;
case X_IDX: /* X to A */
emitcode ("txa", "");
switch (srcidx)
{
case A_IDX: /* A to H */
- emitcode ("psha", "");
- emitcode ("pulh", "");
+ pushReg (hc08_reg_a, FALSE);
+ pullReg (hc08_reg_h);
break;
case X_IDX: /* X to H */
- emitcode ("pshx", "");
- emitcode ("pulh", "");
+ pushReg (hc08_reg_x, FALSE);
+ pullReg (hc08_reg_h);
break;
default:
error=1;
emitcode ("tax", "");
break;
case H_IDX: /* H to X */
- emitcode ("pshh", "");
- emitcode ("pulx", "");
+ pushReg (hc08_reg_h, FALSE);
+ pullReg (hc08_reg_x);
break;
default:
error=1;
switch (srcidx)
{
case XA_IDX: /* XA to HX */
- emitcode ("pshx", "");
- emitcode ("pulh", "");
+ pushReg (hc08_reg_x, FALSE);
+ pullReg (hc08_reg_h);
emitcode ("tax", "");
break;
default:
{
case HX_IDX: /* HX to XA */
emitcode ("txa", "");
- emitcode ("pshh", "");
- emitcode ("pulx", "");
+ pushReg (hc08_reg_h, FALSE);
+ pullReg (hc08_reg_x);
break;
default:
error=1;
hc08_useReg(dreg);
}
+/*--------------------------------------------------------------------------*/
+/* updateCFA - update the debugger information to reflect the current */
+/* connonical frame address relative to the stack pointer */
+/*--------------------------------------------------------------------------*/
+static void
+updateCFA(void)
+{
+ /* there is no frame unless there is a function */
+ if (!currFunc)
+ return;
+
+ debugFile->writeFrameAddress (NULL, hc08_reg_sp,
+ 1 + _G.stackOfs + _G.stackPushes);
+}
+
/*--------------------------------------------------------------------------*/
/* pushReg - Push register reg onto the stack. If freereg is true, reg is */
/* marked free and available for reuse. */
case A_IDX:
emitcode ("psha", "");
_G.stackPushes++;
+ updateCFA();
break;
case X_IDX:
emitcode ("pshx", "");
_G.stackPushes++;
+ updateCFA();
break;
case H_IDX:
emitcode ("pshh", "");
_G.stackPushes++;
+ updateCFA();
break;
case HX_IDX:
emitcode ("pshx", "");
+ _G.stackPushes++;
+ updateCFA();
emitcode ("pshh", "");
- _G.stackPushes += 2;
+ _G.stackPushes++;
+ updateCFA();
break;
case XA_IDX:
emitcode ("psha", "");
+ updateCFA();
+ _G.stackPushes++;
emitcode ("pshx", "");
- _G.stackPushes += 2;
+ updateCFA();
+ _G.stackPushes++;
break;
default:
break;
case A_IDX:
emitcode ("pula", "");
_G.stackPushes--;
+ updateCFA();
break;
case X_IDX:
emitcode ("pulx", "");
_G.stackPushes--;
+ updateCFA();
break;
case H_IDX:
emitcode ("pulh", "");
_G.stackPushes--;
+ updateCFA();
break;
case HX_IDX:
emitcode ("pulx", "");
+ _G.stackPushes--;
+ updateCFA();
emitcode ("pulh", "");
- _G.stackPushes -= 2;
+ _G.stackPushes--;
+ updateCFA();
break;
case XA_IDX:
emitcode ("pula", "");
+ _G.stackPushes--;
+ updateCFA();
emitcode ("pulx", "");
- _G.stackPushes -= 2;
+ _G.stackPushes--;
+ updateCFA();
break;
default:
break;
{
emitcode("ais","#%d",n);
_G.stackPushes -= n;
+ updateCFA();
}
}
static void
adjustStack (int n)
{
- _G.stackPushes -= n;
while (n)
{
if (n>127)
{
emitcode ("ais","#127");
n -= 127;
+ _G.stackPushes -= 127;
+ updateCFA();
}
else if (n<-128)
{
emitcode ("ais","#-128");
n += 128;
+ _G.stackPushes += 128;
+ updateCFA();
}
else
{
emitcode ("ais", "#%d", n);
+ _G.stackPushes -= n;
n = 0;
+ updateCFA();
}
}
}
printf(" reg missing operand link\n");
#endif
- emitcode ("", "; loadRegFromAop (%s, %s, %d)",
- reg->name, aopName (aop), loffset);
+ D(emitcode ("", "; loadRegFromAop (%s, %s, %d)",
+ reg->name, aopName (aop), loffset));
/* If operand is volatile, we cannot optimize. */
if (!aop->op || isOperandVolatile (aop->op, FALSE))
&& (reg->aopofs == loffset))
{
hc08_useReg(reg);
- emitcode ("","; already had correct value for %s", reg->name);
+ D(emitcode ("","; already had correct value for %s", reg->name));
return;
}
&& operandsEqu(hc08_reg_h->aop->op,aop->op)
&& (hc08_reg_h->aopofs == loffset))
{
- emitcode ("","; found correct value for %s in h", reg->name);
+ D(emitcode ("","; found correct value for %s in h", reg->name));
transferRegReg (hc08_reg_h, reg, FALSE);
hc08_useReg (reg);
return;
&& operandsEqu(hc08_reg_x->aop->op,aop->op)
&& (hc08_reg_x->aopofs == loffset))
{
- emitcode ("","; found correct value for %s in x", reg->name);
+ D(emitcode ("","; found correct value for %s in x", reg->name));
transferRegReg (hc08_reg_x, reg, FALSE);
hc08_useReg (reg);
return;
&& operandsEqu(hc08_reg_a->aop->op,aop->op)
&& (hc08_reg_a->aopofs == loffset))
{
- emitcode ("","; found correct value for %s in a", reg->name);
+ D(emitcode ("","; found correct value for %s in a", reg->name));
transferRegReg (hc08_reg_a, reg, FALSE);
hc08_useReg (reg);
return;
asmop *newaop = newAsmop (aop->type);
memcpy (newaop, aop, sizeof(*newaop));
- emitcode("", "; forcedStackAop %s", aopName(aop));
+ D(emitcode("", "; forcedStackAop %s", aopName(aop)));
for (loffset=0; loffset < newaop->size; loffset++)
{
asmop *aopsof = newAsmop (AOP_SOF);
int otheridx;
#endif
- emitcode ("", "; storeRegToAop (%s, %s, %d), stacked=%d, isaddr=%d",
- reg->name, aopName (aop), loffset, aop->stacked, aop->isaddr);
+ D(emitcode ("", "; storeRegToAop (%s, %s, %d), stacked=%d, isaddr=%d",
+ reg->name, aopName (aop), loffset, aop->stacked, aop->isaddr));
if ((reg->rIdx == HX_IDX) && aop->stacked
&& (aop->stk_aop[loffset] || aop->stk_aop[loffset+1]))
return;
}
- switch (regidx)
+ if (aop->type == AOP_DUMMY)
+ return;
+
+ switch (regidx)
{
case A_IDX:
if ((aop->type == AOP_REG) && (loffset < aop->size))
&& operandsEqu(otherreg->aop->op,aop->op)
&& (otherreg->aopofs == loffset))
{
- emitcode("","; marking %s stale", otherreg->name);
+ D(emitcode("","; marking %s stale", otherreg->name));
otherreg->aop=NULL;
}
}
if ((!hc08_reg_x->aop || !hc08_reg_h->aop) && hc08_reg_hx->aop)
{
hc08_reg_hx->aop = NULL;
- emitcode("","; marking hx stale");
+ D(emitcode("","; marking hx stale"));
}
if ((!hc08_reg_x->aop || !hc08_reg_a->aop) && hc08_reg_xa->aop)
{
hc08_reg_xa->aop = NULL;
- emitcode("","; marking xa stale");
+ D(emitcode("","; marking xa stale"));
}
reg->aop = aop;
break;
loadRegFromConst (aop->aopu.aop_reg[loffset], c);
break;
+ case AOP_DUMMY:
+ break;
default:
if (hc08_reg_a->isFree)
{
return;
}
-// emitcode ("", "; transferAopAop (%s, %d, %s, %d)",
-// aopName (srcaop), srcofs, aopName (dstaop), dstofs);
-// emitcode ("", "; srcaop->type = %d", srcaop->type);
-// emitcode ("", "; dstaop->type = %d", dstaop->type);
+// D(emitcode ("", "; transferAopAop (%s, %d, %s, %d)",
+// aopName (srcaop), srcofs, aopName (dstaop), dstofs));
+// D(emitcode ("", "; srcaop->type = %d", srcaop->type));
+// D(emitcode ("", "; dstaop->type = %d", dstaop->type));
if (dstofs >= dstaop->size)
return;
accopWithAop (accop, aop->stk_aop[loffset], 0);
return;
}
-
+
+ if (aop->type == AOP_DUMMY)
+ return;
+
if (aop->type == AOP_REG)
{
pushReg (aop->aopu.aop_reg[loffset], FALSE);
storeRegToAop (hc08_reg_a, aop, loffset);
pullOrFreeReg (hc08_reg_a, needpula);
break;
+ case AOP_DUMMY:
+ break;
default:
emitcode (rmwop, "%s", aopAdrStr (aop, loffset, FALSE));
}
aopForRemat (symbol * sym)
{
iCode *ic = sym->rematiCode;
- asmop *aop = newAsmop (AOP_IMMD);
+ asmop *aop = NULL;
int ptr_type=0;
int val = 0;
ic = OP_SYMBOL (IC_LEFT (ic))->rematiCode;
}
- if (val)
- sprintf (buffer, "(%s %c 0x%04x)",
- OP_SYMBOL (IC_LEFT (ic))->rname,
- val >= 0 ? '+' : '-',
- abs (val) & 0xffff);
- else
- strcpy (buffer, OP_SYMBOL (IC_LEFT (ic))->rname);
+ if (ic->op == ADDRESS_OF)
+ {
+ if (val)
+ sprintf (buffer, "(%s %c 0x%04x)",
+ OP_SYMBOL (IC_LEFT (ic))->rname,
+ val >= 0 ? '+' : '-',
+ abs (val) & 0xffff);
+ else
+ strcpy (buffer, OP_SYMBOL (IC_LEFT (ic))->rname);
- aop->aopu.aop_immd.aop_immd1 = Safe_calloc (1, strlen (buffer) + 1);
- strcpy (aop->aopu.aop_immd.aop_immd1, buffer);
- /* set immd2 field if required */
- if (aop->aopu.aop_immd.from_cast_remat) {
+ aop = newAsmop (AOP_IMMD);
+ aop->aopu.aop_immd.aop_immd1 = Safe_calloc (1, strlen (buffer) + 1);
+ strcpy (aop->aopu.aop_immd.aop_immd1, buffer);
+ /* set immd2 field if required */
+ if (aop->aopu.aop_immd.from_cast_remat)
+ {
sprintf(buffer,"#0x%02x",ptr_type);
aop->aopu.aop_immd.aop_immd2 = Safe_calloc (1, strlen (buffer) + 1);
strcpy (aop->aopu.aop_immd.aop_immd2, buffer);
- }
+ }
+ }
+ else if (ic->op == '=')
+ {
+ val += (int) operandLitValue (IC_RIGHT (ic));
+ val &= 0xffff;
+ sprintf (buffer, "0x%04x", val);
+ aop = newAsmop (AOP_LIT);
+ aop->aopu.aop_lit = constVal (buffer);
+ }
+ else
+ werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
+ "unexpected rematerialization");
+
+
return aop;
}
if (sym1 == sym2)
return TRUE;
- if (strcmp (sym1->rname, sym2->rname) == 0)
+ if (sym1->rname[0] && sym2->rname[0]
+ && strcmp (sym1->rname, sym2->rname) == 0)
return TRUE;
-
/* if left is a tmp & right is not */
if (IS_ITEMP (op1) &&
!IS_ITEMP (op2) &&
}
#endif
/* else spill location */
-// printf("checking spill loc\n");
-// if (sym->usl.spillLoc && getSize(sym->type) != getSize(sym->usl.spillLoc->type)) {
- if (sym->usl.spillLoc && sym->usl.spillLoc->aop
- && sym->usl.spillLoc->aop->size != getSize (sym->type))
+ if (sym->usl.spillLoc)
{
- /* force a new aop if sizes differ */
- sym->usl.spillLoc->aop = NULL;
- //printf ("forcing new aop\n");
- }
- sym->aop = op->aop = aop =
- aopForSym (ic, sym->usl.spillLoc, result);
+ if (sym->usl.spillLoc->aop
+ && sym->usl.spillLoc->aop->size != getSize (sym->type))
+ {
+ /* force a new aop if sizes differ */
+ sym->usl.spillLoc->aop = NULL;
+ //printf ("forcing new aop\n");
+ }
+ sym->aop = op->aop = aop = aopForSym (ic, sym->usl.spillLoc, result);
+ aop->size = getSize (sym->type);
+ aop->op = op;
+ aop->isaddr = op->isaddr;
+ //printf ("spill symbol %s\n", OP_SYMBOL (op)->name);
+ //printf (" with size = %d\n", aop->size);
+ return;
+ }
+
+ /* else must be a dummy iTemp */
+ sym->aop = op->aop = aop = newAsmop (AOP_DUMMY);
aop->size = getSize (sym->type);
- aop->op = op;
- aop->isaddr = op->isaddr;
- //printf ("spill symbol %s\n", OP_SYMBOL (op)->name);
- //printf (" with size = %d\n", aop->size);
- /* if (aop->isaddr & IS_ITEMP (op))
- {
- aop->psize=aop->size;
- aop->size = getSize( operandType (op)->next);
- } */
return;
}
int stackAdjust;
int loffset;
- emitcode ("","; freeAsmop restoring stacked %s", aopName(aop));
+ D(emitcode ("","; freeAsmop restoring stacked %s", aopName(aop)));
aop->stacked = 0;
stackAdjust = 0;
for (loffset=0; loffset<aop->size; loffset++)
sym_link *type, *etype;
int p_type;
- emitcode ("", "; aopDerefAop(%s)", aopName(aop));
+ D(emitcode ("", "; aopDerefAop(%s)", aopName(aop)));
if (aop->op)
{
switch (aop->type)
{
+ case AOP_DUMMY:
+ return zero;
+
case AOP_IMMD:
if (aop->aopu.aop_immd.from_cast_remat && (loffset == (aop->size-1))) {
sprintf(s,"%s",aop->aopu.aop_immd.aop_immd2);
case AOP_LIT:
if (bit16)
- return aopLiteralLong (aop->aopu.aop_lit, loffset, 2);
+ return aopLiteralLong (aop->aopu.aop_lit, /*loffset*/ 0, 2);
else
return aopLiteral (aop->aopu.aop_lit, loffset);
emitcode ("", "%05d$:", (tlbl->key + 100));
}
else
- werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
- "Bad rIdx in asmToBool");
- return;
+ {
+ werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
+ "Bad rIdx in asmToBool");
+ return;
+ }
+ break;
case AOP_EXT:
if (resultInA)
needpula = FALSE;
sym_link *optype, *rtype;
char *sub;
bool needpula;
+ asmop *result;
D(emitcode ("; genUminus",""));
if (size == 1)
{
- needpula = pushRegIfUsed (hc08_reg_a);
+ if (!IS_AOP_A (AOP (IC_LEFT (ic))))
+ needpula = pushRegIfUsed (hc08_reg_a);
+ else
+ needpula = FALSE;
loadRegFromAop (hc08_reg_a, AOP( IC_LEFT (ic)), 0);
emitcode ("nega", "");
hc08_freeReg (hc08_reg_a);
}
else
{
+ if (IS_AOP_XA (AOP (IC_RESULT (ic))))
+ result = forceStackedAop (AOP (IC_RESULT (ic)));
+ else
+ result = AOP (IC_RESULT (ic));
+
needpula = pushRegIfUsed (hc08_reg_a);
sub="sub";
while (size--)
{
loadRegFromConst (hc08_reg_a, zero);
accopWithAop (sub, AOP( IC_LEFT (ic)), offset);
- storeRegToAop (hc08_reg_a, AOP( IC_RESULT (ic)), offset++);
+ storeRegToAop (hc08_reg_a, result, offset++);
sub = "sbc";
}
- storeRegSignToUpperAop (hc08_reg_a, AOP( IC_RESULT (ic)), offset,
+ storeRegSignToUpperAop (hc08_reg_a, result, offset,
SPEC_USIGN (operandType (IC_LEFT (ic))));
pullOrFreeReg (hc08_reg_a, needpula);
+
+ if (IS_AOP_XA (AOP (IC_RESULT (ic))))
+ freeAsmop (NULL, result, ic, TRUE);
}
release:
/* release the aops */
freeAsmop (IC_RESULT (ic), NULL, ic, TRUE);
- freeAsmop (IC_LEFT (ic), NULL, ic, TRUE);
+ freeAsmop (IC_LEFT (ic), NULL, ic, FALSE);
}
/*-----------------------------------------------------------------*/
emitcode ("", "%s:", sym->rname);
ftype = operandType (IC_LEFT (ic));
+
+ _G.stackOfs = 0;
+ _G.stackPushes = 0;
+ debugFile->writeFrameAddress (NULL, hc08_reg_sp, 0);
if (IFFUNC_ISNAKED(ftype))
{
{
if (!inExcludeList ("h"))
- emitcode ("pshh", "");
+ pushReg (hc08_reg_h, FALSE);
}
else
{
if (IFFUNC_ISNAKED(sym->type))
{
emitcode(";", "naked function: no epilogue.");
+ if (options.debug && currFunc)
+ debugFile->writeEndFunction (currFunc, ic, 0);
return;
}
{
if (!inExcludeList ("h"))
- emitcode ("pulh", "");
+ pullReg (hc08_reg_h);
/* if debug then send end of function */
if (options.debug && currFunc)
{
- _G.debugLine = 1;
- emitcode ("", "C$%s$%d$%d$%d ==.",
- FileBaseName (ic->filename), currFunc->lastLine,
- ic->level, ic->block);
- if (IS_STATIC (currFunc->etype))
- emitcode ("", "XF%s$%s$0$0 ==.", moduleName, currFunc->name);
- else
- emitcode ("", "XG$%s$0$0 ==.", currFunc->name);
- _G.debugLine = 0;
+ debugFile->writeEndFunction (currFunc, ic, 1);
}
emitcode ("rti", "");
{
if (bitVectBitValue (sym->regsUsed, i) ||
(hc08_ptrRegReq && (i == HX_IDX || i == HX_IDX)))
- emitcode ("pop", "%s", hc08_regWithIdx (i)->dname);
+ emitcode ("pop", "%s", hc08_regWithIdx (i)->name);
}
}
/* if debug then send end of function */
if (options.debug && currFunc)
{
- _G.debugLine = 1;
- emitcode ("", "C$%s$%d$%d$%d ==.",
- FileBaseName (ic->filename), currFunc->lastLine,
- ic->level, ic->block);
- if (IS_STATIC (currFunc->etype))
- emitcode ("", "XF%s$%s$0$0 ==.", moduleName, currFunc->name);
- else
- emitcode ("", "XG$%s$0$0 ==.", currFunc->name);
- _G.debugLine = 0;
+ debugFile->writeEndFunction (currFunc, ic, 1);
}
emitcode ("rts", "");
/* special case never generate */
if (IC_LABEL (ic) == entryLabel)
return;
+
+ debugFile->writeLabel(IC_LABEL (ic), ic);
emitcode ("", "%05d$:", (IC_LABEL (ic)->key + 100));
icount = (unsigned int) floatFromVal (AOP (IC_RIGHT (ic))->aopu.aop_lit);
- emitcode ("", "; IS_AOP_HX = %d", IS_AOP_HX (AOP (left)));
+ D(emitcode ("", "; IS_AOP_HX = %d", IS_AOP_HX (AOP (left))));
if ((IS_AOP_HX (AOP (left)) ||
( (AOP_TYPE (left) == AOP_DIR) && (AOP_TYPE (result) == AOP_DIR) )
)
&& (icount>=-128) && (icount<=127) && (size==2))
{
- needpulx = pushRegIfUsed (hc08_reg_x);
- needpulh = pushRegIfUsed (hc08_reg_h);
+ if (!IS_AOP_HX (AOP (left)))
+ {
+ needpulx = pushRegIfUsed (hc08_reg_x);
+ needpulh = pushRegIfUsed (hc08_reg_h);
+ }
+ else
+ {
+ needpulx = FALSE;
+ needpulh = FALSE;
+ }
loadRegFromAop (hc08_reg_hx, AOP(left), 0);
emitcode ("aix","#%d", icount);
hc08_dirtyReg (hc08_reg_hx, FALSE);
return TRUE;
}
- emitcode ("", "; icount = %d, sameRegs=%d", icount,
- sameRegs (AOP (left), AOP (result)));
+ D(emitcode ("", "; icount = %d, sameRegs=%d", icount,
+ sameRegs (AOP (left), AOP (result))));
if ((icount > 255) || (icount<0))
return FALSE;
}
else
{
- needpula = pushRegIfUsed (hc08_reg_a);
+ if (!IS_AOP_A (AOP (result)) && !IS_AOP_XA (AOP (result)))
+ needpula = pushRegIfUsed (hc08_reg_a);
+ else
+ needpula = FALSE;
loadRegFromAop (hc08_reg_a, AOP (result), 0);
accopWithAop ("add", AOP (IC_RIGHT (ic)), 0);
hc08_useReg (hc08_reg_a);
if (genPlusIncr (ic) == TRUE)
goto release;
- emitcode("","; left size = %d", getDataSize (IC_LEFT(ic)));
- emitcode("","; right size = %d", getDataSize (IC_RIGHT(ic)));
- emitcode("","; result size = %d", getDataSize (IC_RESULT(ic)));
+ D(emitcode("","; left size = %d", getDataSize (IC_LEFT(ic))));
+ D(emitcode("","; right size = %d", getDataSize (IC_RIGHT(ic))));
+ D(emitcode("","; result size = %d", getDataSize (IC_RESULT(ic))));
size = getDataSize (IC_RESULT (ic));
if ((AOP_TYPE (left) == AOP_DIR) && (AOP_TYPE (result) == AOP_DIR)
&& (icount>=-127) && (icount<=128) && (size==2))
{
- needpulx = pushRegIfUsed (hc08_reg_x);
- needpulh = pushRegIfUsed (hc08_reg_h);
+ if (!IS_AOP_HX (AOP (left)))
+ {
+ needpulx = pushRegIfUsed (hc08_reg_x);
+ needpulh = pushRegIfUsed (hc08_reg_h);
+ }
+ else
+ {
+ needpulx = FALSE;
+ needpulh = FALSE;
+ }
loadRegFromAop (hc08_reg_hx, AOP(left), 0);
emitcode ("aix","#%d", -icount);
hc08_dirtyReg (hc08_reg_hx, FALSE);
operand * right,
operand * result)
{
- sym_link *opetype = operandType (result);
+ /* sym_link *opetype = operandType (result); */
symbol *tlbl1, *tlbl2, *tlbl3, *tlbl4;
int size=AOP_SIZE(result);
bool negLiteral = FALSE;
operand *t = right;
right = left;
left = t;
- //emitcode (";", "swapped left and right");
+ //D(emitcode (";", "swapped left and right"));
}
- if (SPEC_USIGN(opetype))
+ if (size == 1
+ || (SPEC_USIGN(operandType(left)) &&
+ SPEC_USIGN(operandType(right))))
{
// just an unsigned 8*8=8/16 multiply
- //emitcode (";","unsigned");
+ //D(emitcode (";","unsigned"));
loadRegFromAop (hc08_reg_a, AOP (left), 0);
loadRegFromAop (hc08_reg_x, AOP (right), 0);
// we have to do a signed multiply
- //emitcode (";", "signed");
+ //D(emitcode (";", "signed"));
adjustStack (-1);
emitcode ("clr", "1,s");
}
else
{
- needpula = pushRegIfUsed (hc08_reg_a);
- loadRegFromAop (hc08_reg_a, AOP (left), AOP_SIZE (left) -1);
+ loadRegFromAop (hc08_reg_a, AOP (left), AOP_SIZE (left) -1);
emitcode ("rola", "");
hc08_useReg (hc08_reg_a);
}
asmop *derefaop;
/* Make sure we have a next iCode */
- emitcode("","; checking lic");
+ D(emitcode("","; checking lic"));
if (!lic)
return FALSE;
/* Make sure the result of the addition is an iCode */
- emitcode("","; checking IS_ITEMP");
+ D(emitcode("","; checking IS_ITEMP"));
if (!IS_ITEMP (IC_RESULT (ic)))
return FALSE;
/* Make sure the next iCode is a pointer set or get */
pset = POINTER_SET(lic);
pget = POINTER_GET(lic);
- emitcode("","; pset=%d, pget=%d",pset,pget);
+ D(emitcode("","; pset=%d, pget=%d",pset,pget));
if (!pset && !pget)
return FALSE;
- emitcode("", "; checking pset operandsEqu");
+ /* Make sure this is the only use of the pointer */
+ if (bitVectnBitsOn (OP_USES (IC_RESULT (ic))) > 1)
+ return FALSE;
+
+ D(emitcode("", "; checking pset operandsEqu"));
if (pset & !operandsEqu (IC_RESULT (ic), IC_RESULT (lic)))
return FALSE;
- emitcode("", "; checking pget operandsEqu");
+ D(emitcode("", "; checking pget operandsEqu"));
if (pget & !operandsEqu (IC_RESULT (ic), IC_LEFT (lic)))
return FALSE;
- emitcode("", "; checking IS_SYMOP");
+ D(emitcode("", "; checking IS_SYMOP"));
if (!IS_SYMOP (IC_LEFT (ic)))
return FALSE;
- emitcode("", "; checking !IS_TRUE_SYMOP");
+ D(emitcode("", "; checking !IS_TRUE_SYMOP"));
if (IS_TRUE_SYMOP (IC_LEFT (ic)))
return FALSE;
sym = OP_SYMBOL (IC_LEFT (ic));
- emitcode("", "; checking remat");
+ D(emitcode("", "; checking remat"));
if (!sym->remat)
return FALSE;
+
if (pget)
{
D(emitcode ("; genPointerGetOfs",""));
aopOp (IC_RIGHT(ic), ic, FALSE);
aopOp (IC_RESULT(lic), lic, FALSE);
-
- loadRegFromAop (hc08_reg_hx, AOP (IC_RIGHT (ic)), 0);
+ if (AOP_SIZE (IC_RIGHT (ic)) == 1)
+ {
+ if (SPEC_USIGN (getSpec (operandType (IC_RIGHT (ic)))))
+ {
+ loadRegFromAop (hc08_reg_x, AOP (IC_RIGHT (ic)), 0);
+ loadRegFromConst (hc08_reg_h, zero);
+ }
+ else
+ {
+ loadRegFromAop (hc08_reg_a, AOP (IC_RIGHT (ic)), 0);
+ transferRegReg (hc08_reg_a, hc08_reg_x, FALSE);
+ emitcode ("rola","");
+ emitcode ("clra","");
+ emitcode ("sbc", "#0");
+ hc08_useReg (hc08_reg_a);
+ transferRegReg (hc08_reg_a, hc08_reg_h, FALSE);
+ }
+ }
+ else
+ loadRegFromAop (hc08_reg_hx, AOP (IC_RIGHT (ic)), 0);
size = AOP_SIZE (IC_RESULT(lic));
derefaop->size = size;
offset=0;
aopOp (IC_RIGHT(ic), ic, FALSE);
aopOp (IC_RIGHT(lic), lic, FALSE);
-
- loadRegFromAop (hc08_reg_hx, AOP (IC_RIGHT (ic)), 0);
+ if (AOP_SIZE (IC_RIGHT (ic)) == 1)
+ {
+ if (SPEC_USIGN (getSpec (operandType (IC_RIGHT (ic)))))
+ {
+ loadRegFromAop (hc08_reg_x, AOP (IC_RIGHT (ic)), 0);
+ loadRegFromConst (hc08_reg_h, zero);
+ }
+ else
+ {
+ loadRegFromAop (hc08_reg_a, AOP (IC_RIGHT (ic)), 0);
+ transferRegReg (hc08_reg_a, hc08_reg_x, FALSE);
+ emitcode ("rola","");
+ emitcode ("clra","");
+ emitcode ("sbc", "#0");
+ hc08_useReg (hc08_reg_a);
+ transferRegReg (hc08_reg_a, hc08_reg_h, FALSE);
+ }
+ }
+ else
+ loadRegFromAop (hc08_reg_hx, AOP (IC_RIGHT (ic)), 0);
size = AOP_SIZE (IC_RIGHT(lic));
derefaop->size = size;
offset=0;
aopOp ((result = IC_RESULT (ic)), ic, TRUE);
#ifdef DEBUG_TYPE
- emitcode ("", "; Type res[%d] = l[%d]&r[%d]",
+ D(emitcode ("", "; Type res[%d] = l[%d]&r[%d]",
AOP_TYPE (result),
- AOP_TYPE (left), AOP_TYPE (right));
- emitcode ("", "; Size res[%d] = l[%d]&r[%d]",
+ AOP_TYPE (left), AOP_TYPE (right)));
+ D(emitcode ("", "; Size res[%d] = l[%d]&r[%d]",
AOP_SIZE (result),
- AOP_SIZE (left), AOP_SIZE (right));
+ AOP_SIZE (left), AOP_SIZE (right)));
#endif
/* if left is a literal & right is not then exchange them */
left = tmp;
}
+
+ if (AOP_TYPE (result) == AOP_CRY)
+ {
+ symbol *tlbl;
+ wassertl (ifx, "AOP_CPY result without ifx");
+
+ tlbl = newiTempLabel (NULL);
+ size = (AOP_SIZE (left) >= AOP_SIZE (right)) ? AOP_SIZE (left) : AOP_SIZE (right);
+ offset = 0;
+ while (size--)
+ {
+ loadRegFromAop (hc08_reg_a, AOP (left), offset);
+ if ((AOP_TYPE (right) == AOP_LIT)
+ && (((lit >> (offset*8)) & 0xff) == 0xff))
+ emitcode ("tsta","");
+ else
+ accopWithAop ("and", AOP (right), offset);
+ hc08_freeReg( hc08_reg_a);
+ if (size)
+ emitBranch ("bne", tlbl);
+ else
+ {
+ emitLabel (tlbl);
+ genIfxJump (ifx, "a");
+ }
+ offset++;
+ }
+ }
+
size = AOP_SIZE (result);
if (AOP_TYPE (right) == AOP_LIT)
goto release;
}
}
-
+
offset = 0;
while (size--)
{
aopOp ((result = IC_RESULT (ic)), ic, TRUE);
#ifdef DEBUG_TYPE
- emitcode ("", "; Type res[%d] = l[%d]&r[%d]",
+ D(emitcode ("", "; Type res[%d] = l[%d]&r[%d]",
AOP_TYPE (result),
- AOP_TYPE (left), AOP_TYPE (right));
- emitcode ("", "; Size res[%d] = l[%d]&r[%d]",
+ AOP_TYPE (left), AOP_TYPE (right)));
+ D(emitcode ("", "; Size res[%d] = l[%d]&r[%d]",
AOP_SIZE (result),
- AOP_SIZE (left), AOP_SIZE (right));
+ AOP_SIZE (left), AOP_SIZE (right)));
#endif
/* if left is a literal & right is not then exchange them */
left = tmp;
}
- /* if right is bit then exchange them */
- if (AOP_TYPE (right) == AOP_CRY &&
- AOP_TYPE (left) != AOP_CRY)
+ if (AOP_TYPE (result) == AOP_CRY)
{
- operand *tmp = right;
- right = left;
- left = tmp;
+ symbol *tlbl;
+ wassertl (ifx, "AOP_CPY result without ifx");
+
+ tlbl = newiTempLabel (NULL);
+ size = (AOP_SIZE (left) >= AOP_SIZE (right)) ? AOP_SIZE (left) : AOP_SIZE (right);
+ offset = 0;
+ while (size--)
+ {
+ loadRegFromAop (hc08_reg_a, AOP (left), offset);
+ if ((AOP_TYPE (right) == AOP_LIT)
+ && (((lit >> (offset*8)) & 0xff) == 0))
+ emitcode ("tsta","");
+ else
+ accopWithAop ("ora", AOP (right), offset);
+ hc08_freeReg( hc08_reg_a);
+ if (size)
+ emitBranch ("bne", tlbl);
+ else
+ {
+ emitLabel (tlbl);
+ genIfxJump (ifx, "a");
+ }
+ offset++;
+ }
}
+
if (AOP_TYPE (right) == AOP_LIT)
lit = (unsigned long) floatFromVal (AOP (right)->aopu.aop_lit);
goto release;
}
-
-
offset = 0;
while (size--)
{
aopOp ((result = IC_RESULT (ic)), ic, TRUE);
#ifdef DEBUG_TYPE
- emitcode ("", "; Type res[%d] = l[%d]&r[%d]",
+ D(emitcode ("", "; Type res[%d] = l[%d]&r[%d]",
AOP_TYPE (result),
- AOP_TYPE (left), AOP_TYPE (right));
- emitcode ("", "; Size res[%d] = l[%d]&r[%d]",
+ AOP_TYPE (left), AOP_TYPE (right)));
+ D(emitcode ("", "; Size res[%d] = l[%d]&r[%d]",
AOP_SIZE (result),
- AOP_SIZE (left), AOP_SIZE (right));
+ AOP_SIZE (left), AOP_SIZE (right)));
#endif
/* if left is a literal & right is not ||
left = tmp;
}
- /* if right is bit then exchange them */
- if (AOP_TYPE (right) == AOP_CRY &&
- AOP_TYPE (left) != AOP_CRY)
+ if (AOP_TYPE (result) == AOP_CRY)
{
- operand *tmp = right;
- right = left;
- left = tmp;
+ symbol *tlbl;
+ wassertl (ifx, "AOP_CPY result without ifx");
+
+ tlbl = newiTempLabel (NULL);
+ size = (AOP_SIZE (left) >= AOP_SIZE (right)) ? AOP_SIZE (left) : AOP_SIZE (right);
+ offset = 0;
+ while (size--)
+ {
+ loadRegFromAop (hc08_reg_a, AOP (left), offset);
+ if ((AOP_TYPE (right) == AOP_LIT)
+ && (((lit >> (offset*8)) & 0xff) == 0))
+ emitcode ("tsta","");
+ else
+ accopWithAop ("eor", AOP (right), offset);
+ hc08_freeReg( hc08_reg_a);
+ if (size)
+ emitBranch ("bne", tlbl);
+ else
+ {
+ emitLabel (tlbl);
+ genIfxJump (ifx, "a");
+ }
+ offset++;
+ }
}
+
if (AOP_TYPE (right) == AOP_LIT)
lit = (unsigned long) floatFromVal (AOP (right)->aopu.aop_lit);
hc08_freeReg( hc08_reg_a);
}
-
//release:
freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
freeAsmop (right, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
emitcode ("rola", "");
hc08_dirtyReg (hc08_reg_a, FALSE);
storeRegToFullAop (hc08_reg_a, AOP (result), FALSE);
+ hc08_freeReg (hc08_reg_a);
+
+ freeAsmop (left, NULL, ic, TRUE);
+ freeAsmop (result, NULL, ic, TRUE);
+}
+
+/*-----------------------------------------------------------------*/
+/* genSwap - generates code to swap nibbles or bytes */
+/*-----------------------------------------------------------------*/
+static void
+genSwap (iCode * ic)
+{
+ operand *left, *result;
+
+ D(emitcode ("; genSwap",""));
+
+ left = IC_LEFT (ic);
+ result = IC_RESULT (ic);
+ aopOp (left, ic, FALSE);
+ aopOp (result, ic, FALSE);
+ switch (AOP_SIZE (left))
+ {
+ case 1: /* swap nibbles in byte */
+ loadRegFromAop (hc08_reg_a, AOP (left), 0);
+ emitcode ("nsa", "");
+ hc08_dirtyReg (hc08_reg_a, FALSE);
+ storeRegToAop (hc08_reg_a, AOP (result), 0);
+ hc08_freeReg (hc08_reg_a);
+ break;
+ case 2: /* swap bytes in a word */
+ if (operandsEqu (left, result))
+ {
+ loadRegFromAop (hc08_reg_a, AOP (left), 0);
+ hc08_useReg (hc08_reg_a);
+ transferAopAop (AOP (left), 1, AOP (result), 0);
+ storeRegToAop (hc08_reg_a, AOP (result), 1);
+ hc08_freeReg (hc08_reg_a);
+ }
+ else
+ {
+ transferAopAop (AOP (left), 0, AOP (result), 1);
+ transferAopAop (AOP (left), 1, AOP (result), 0);
+ }
+ break;
+ default:
+ wassertl(FALSE, "unsupported SWAP operand size");
+ }
+
freeAsmop (left, NULL, ic, TRUE);
freeAsmop (result, NULL, ic, TRUE);
}
return;
}
- shCount &= 0x000f; // shCount : 0..7
+ shCount &= 0x000f; // shCount : 0..f
/* if we can beat 2n cycles or bytes for some special case, do it here */
switch (shCount)
** rola 1 1 bcde fgh0 0000 000a 0
** lslx 1 1 cdef gh00 0000 000a b
** rola 1 1 cdef gh00 0000 00ab 0
- ** clrx 1 1 0000 0000 0000 000a 0
+ ** clrx 1 1 0000 0000 0000 00ab 0
** total: 6 cycles, 6 bytes
*/
loadRegFromConst (hc08_reg_x, zero);
;
}
- /* lslx/rola is only 2 cycles and bytes, so an unrolled loop is often */
+ /* lsrx/rora is only 2 cycles and bytes, so an unrolled loop is often */
/* the fastest and shortest. */
for (i=0;i<shCount;i++)
{
- rmwWithReg ("lsl", hc08_reg_x);
- rmwWithReg ("rol", hc08_reg_a);
+ rmwWithReg ("lsr", hc08_reg_x);
+ rmwWithReg ("ror", hc08_reg_a);
}
}
/*-----------------------------------------------------------------*/
-/* AccAXRsh1 - right shift 0->a:x->c by 1 */
+/* shiftL2Left2Result - shift left two bytes from left to result */
/*-----------------------------------------------------------------*/
static void
-AccAXRsh1 (char *x)
+shiftL2Left2Result (operand * left, int offl,
+ operand * result, int offr, int shCount)
{
- emitcode ("lsra", "");
- emitcode ("ror", "%s", x);
-}
+ int i;
+ bool needpula = FALSE;
+ bool needpulx = FALSE;
+ if (!IS_AOP_XA (AOP (left)) && !IS_AOP_A (AOP (left)))
+ needpula = pushRegIfUsed (hc08_reg_a);
+ else
+ needpula = FALSE;
+ if (!IS_AOP_XA (AOP (left)))
+ needpulx = pushRegIfUsed (hc08_reg_x);
+ else
+ needpulx = FALSE;
-/*-----------------------------------------------------------------*/
-/* AccAXRshS1 - signed right shift s->a:x->c by 1 */
-/*-----------------------------------------------------------------*/
-static void
-AccAXRshS1 (char *x)
-{
- emitcode ("asra", "");
- emitcode ("ror", "%s", x);
-}
+ loadRegFromAop (hc08_reg_xa, AOP (left), offl);
+
+ switch (shCount)
+ {
+ case 7:
+ rmwWithReg ("lsr", hc08_reg_x);
+ rmwWithReg ("ror", hc08_reg_a);
+ transferRegReg (hc08_reg_a, hc08_reg_x, FALSE);
+ rmwWithReg ("clr", hc08_reg_a);
+ rmwWithReg ("ror", hc08_reg_a);
+ break;
+ default:
+ for (i=0; i<shCount; i++)
+ {
+ rmwWithReg ("lsl", hc08_reg_a);
+ rmwWithReg ("rol", hc08_reg_x);
+ }
+ }
+ storeRegToAop (hc08_reg_xa, AOP (result), offl);
+
+ pullOrFreeReg (hc08_reg_x, needpulx);
+ pullOrFreeReg (hc08_reg_a, needpula);
-/*-----------------------------------------------------------------*/
-/* AccAXLrl1 - left rotate c<-a:x<-c by 1 */
-/*-----------------------------------------------------------------*/
-static void
-AccAXLrl1 (char *x)
-{
- emitcode ("rol", "%s", x);
- emitcode ("rola", "");
}
+
+#if 0
/*-----------------------------------------------------------------*/
-/* AccAXLsh1 - left shift a:x<-0 by 1 */
-/*-----------------------------------------------------------------*/
-static void
-AccAXLsh1 (char *x)
-{
- emitcode ("lsl", "%s", x);
- emitcode ("rola", "");
-}
-
-/*-----------------------------------------------------------------*/
-/* AccAXLsh - left shift a:x by known count (0..7) */
-/*-----------------------------------------------------------------*/
-static void
-AccAXLsh (char *x, int shCount)
-{
- int i;
-
- for (i=0;i<shCount;i++) {
- AccAXLsh1 (x);
- }
-}
-
-/*-----------------------------------------------------------------*/
-/* AccAXRsh - right shift a:x known count (0..7) */
-/*-----------------------------------------------------------------*/
-static void
-AccAXRsh (char *x, int shCount)
-{
- int i;
-
- for (i=0;i<shCount;i++) {
- AccAXRsh1 (x);
- }
-
-}
-
-/*-----------------------------------------------------------------*/
-/* AccAXRshS - right shift signed a:x known count (0..7) */
-/*-----------------------------------------------------------------*/
-static void
-AccAXRshS (char *x, int shCount)
-{
- int i;
-
- for (i=0;i<shCount;i++) {
- AccAXRshS1 (x);
- }
-}
-
-/*-----------------------------------------------------------------*/
-/* shiftL2Left2Result - shift left two bytes from left to result */
-/*-----------------------------------------------------------------*/
-static void
-shiftL2Left2Result (operand * left, int offl,
- operand * result, int offr, int shCount)
-{
- int i;
- bool needpula = FALSE;
- bool needpulx = FALSE;
-
- needpula = pushRegIfUsed (hc08_reg_a);
- needpulx = pushRegIfUsed (hc08_reg_x);
-
- loadRegFromAop (hc08_reg_xa, AOP (left), offl);
-
- switch (shCount)
- {
- case 7:
- rmwWithReg ("lsr", hc08_reg_x);
- rmwWithReg ("ror", hc08_reg_a);
- transferRegReg (hc08_reg_a, hc08_reg_x, FALSE);
- rmwWithReg ("clr", hc08_reg_a);
- rmwWithReg ("ror", hc08_reg_a);
- break;
- default:
- for (i=0; i<shCount; i++)
- {
- rmwWithReg ("lsl", hc08_reg_a);
- rmwWithReg ("rol", hc08_reg_x);
- }
- }
- storeRegToAop (hc08_reg_xa, AOP (result), offl);
-
- pullOrFreeReg (hc08_reg_x, needpulx);
- pullOrFreeReg (hc08_reg_a, needpula);
-
-}
-
-
-#if 0
-/*-----------------------------------------------------------------*/
-/* shiftR2Left2Result - shift right two bytes from left to result */
+/* shiftR2Left2Result - shift right two bytes from left to result */
/*-----------------------------------------------------------------*/
static void
shiftR2Left2Result (operand * left, int offl,
D(emitcode ("; genlshTwo",""));
+
size = getDataSize (result);
/* if shCount >= 8 */
if (size > 1)
{
- if (shCount)
- shiftL1Left2Result (left, LSB, result, MSB16, shCount);
- else
- movLeft2Result (left, LSB, result, MSB16, 0);
+ loadRegFromAop (hc08_reg_a, AOP (left), 0);
+ AccLsh (shCount);
+ storeRegToAop (hc08_reg_a, AOP (result), 1);
}
storeConstToAop(zero, AOP (result), LSB);
}
/* 1 <= shCount <= 7 */
else
{
- if (size == 1)
- shiftL1Left2Result (left, LSB, result, LSB, shCount);
- else
- shiftL2Left2Result (left, LSB, result, LSB, shCount);
+ loadRegFromAop (hc08_reg_xa, AOP (left), 0);
+ XAccLsh (shCount);
+ storeRegToFullAop (hc08_reg_xa, AOP (result), 0);
}
}
size = AOP_SIZE (result);
#if VIEW_SIZE
- emitcode ("; shift left ", "result %d, left %d", size,
- AOP_SIZE (left));
+ D(emitcode ("; shift left ", "result %d, left %d", size,
+ AOP_SIZE (left)));
#endif
if (shCount == 0)
aopOp (result, ic, FALSE);
#if VIEW_SIZE
- emitcode ("; shift right ", "result %d, left %d", AOP_SIZE (result),
- AOP_SIZE (left));
+ D(emitcode ("; shift right ", "result %d, left %d", AOP_SIZE (result),
+ AOP_SIZE (left)));
#endif
size = getDataSize (left);
freeAsmop (right, NULL, ic, TRUE);
}
+
/*-----------------------------------------------------------------*/
/* genUnpackBits - generates code for unpacking bits */
/*-----------------------------------------------------------------*/
static void
-genUnpackBits (operand * result)
+genUnpackBits (operand * result, iCode *ifx)
{
int offset = 0; /* result byte offset */
int rsize; /* result size */
{
emitcode ("lda", ",x");
hc08_dirtyReg (hc08_reg_a, FALSE);
- AccRsh (bstr, FALSE);
- emitcode ("and", "#0x%02x", ((unsigned char) -1) >> (8 - blen));
- storeRegToAop (hc08_reg_a, AOP (result), offset++);
+ if (!ifx)
+ {
+ AccRsh (bstr, FALSE);
+ emitcode ("and", "#0x%02x", ((unsigned char) -1) >> (8 - blen));
+ storeRegToAop (hc08_reg_a, AOP (result), offset++);
+ }
+ else
+ {
+ emitcode ("and", "#0x%02x",
+ (((unsigned char) -1) >> (8 - blen)) << bstr);
+ }
goto finish;
}
{
emitcode ("lda", ",x");
hc08_dirtyReg (hc08_reg_a, FALSE);
- storeRegToAop (hc08_reg_a, AOP (result), offset++);
+ if (!ifx)
+ storeRegToAop (hc08_reg_a, AOP (result), offset);
+ offset++;
if (rlen>8)
emitcode ("aix", "#1");
}
while (rsize--)
storeConstToAop (zero, AOP (result), offset++);
}
+
+ if (ifx && !ifx->generated)
+ {
+ genIfxJump (ifx, "a");
+ }
}
/*-----------------------------------------------------------------*/
-/* genDataPointerGet - generates code when ptr offset is known */
+/* genUnpackBitsImmed - generates code for unpacking bits */
/*-----------------------------------------------------------------*/
static void
-genDataPointerGet (operand * left,
- operand * result,
- iCode * ic)
+genUnpackBitsImmed (operand * left,
+ operand * result,
+ iCode *ic,
+ iCode *ifx)
{
- int size, offset = 0;
+ int size;
+ int offset = 0; /* result byte offset */
+ int rsize; /* result size */
+ int rlen = 0; /* remaining bitfield length */
+ sym_link *etype; /* bitfield type information */
+ int blen; /* bitfield length */
+ int bstr; /* bitfield starting bit within byte */
asmop *derefaop;
- D(emitcode ("; genDataPointerGet",""));
+ D(emitcode ("; genUnpackBitsImmed",""));
aopOp (result, ic, TRUE);
size = AOP_SIZE (result);
freeAsmop (left, NULL, ic, TRUE);
derefaop->size = size;
- while (size--)
+ etype = getSpec (operandType (result));
+ rsize = getSize (operandType (result));
+ blen = SPEC_BLEN (etype);
+ bstr = SPEC_BSTR (etype);
+
+ /* if the bitfield is a single bit in the direct page */
+ if (blen == 1 && derefaop->type == AOP_DIR)
+ {
+ if (!ifx && bstr)
+ {
+ symbol *tlbl = newiTempLabel (NULL);
+
+ loadRegFromConst (hc08_reg_a, zero);
+ emitcode ("brclr", "#%d,%s,%05d$",
+ bstr, aopAdrStr (derefaop, 0, FALSE),
+ (tlbl->key + 100));
+ rmwWithReg ("inc", hc08_reg_a);
+ emitLabel (tlbl);
+ storeRegToAop (hc08_reg_a, AOP (result), offset);
+ hc08_freeReg (hc08_reg_a);
+ offset++;
+ goto finish;
+ }
+ else if (ifx)
+ {
+ symbol *tlbl = newiTempLabel (NULL);
+ symbol *jlbl;
+ char * inst;
+
+ if (IC_TRUE (ifx))
+ {
+ jlbl = IC_TRUE (ifx);
+ inst = "brclr";
+ }
+ else
+ {
+ jlbl = IC_FALSE (ifx);
+ inst = "brset";
+ }
+ emitcode (inst, "#%d,%s,%05d$",
+ bstr, aopAdrStr (derefaop, 0, FALSE),
+ (tlbl->key + 100));
+ emitBranch ("jmp", jlbl);
+ emitLabel (tlbl);
+ ifx->generated = 1;
+ offset++;
+ goto finish;
+ }
+ }
+
+ /* If the bitfield length is less than a byte */
+ if (blen < 8)
{
- transferAopAop(derefaop, offset, AOP (result), offset);
+ loadRegFromAop (hc08_reg_a, derefaop, 0);
+ if (!ifx)
+ {
+ AccRsh (bstr, FALSE);
+ emitcode ("and", "#0x%02x", ((unsigned char) -1) >> (8 - blen));
+ hc08_dirtyReg (hc08_reg_a, FALSE);
+ storeRegToAop (hc08_reg_a, AOP (result), offset);
+ }
+ else
+ {
+ emitcode ("and", "#0x%02x",
+ (((unsigned char) -1) >> (8 - blen)) << bstr);
+ hc08_dirtyReg (hc08_reg_a, FALSE);
+ }
offset++;
+ goto finish;
+ }
+
+ /* Bit field did not fit in a byte. Copy all
+ but the partial byte at the end. */
+ for (rlen=blen;rlen>=8;rlen-=8)
+ {
+ loadRegFromAop (hc08_reg_a, derefaop, size-offset);
+ if (!ifx)
+ storeRegToAop (hc08_reg_a, AOP (result), offset);
+ else
+ emitcode ("tsta", "");
+ offset++;
+ }
+
+ /* Handle the partial byte at the end */
+ if (rlen)
+ {
+ loadRegFromAop (hc08_reg_a, derefaop, size-offset);
+ emitcode ("and", "#0x%02x", ((unsigned char) -1) >> (8-rlen));
+ storeRegToAop (hc08_reg_a, AOP (result), offset++);
}
+finish:
+ if (offset < rsize)
+ {
+ rsize -= offset;
+ while (rsize--)
+ storeConstToAop (zero, AOP (result), offset++);
+ }
+
freeAsmop (NULL, derefaop, ic, TRUE);
freeAsmop (result, NULL, ic, TRUE);
+
+ if (ifx && !ifx->generated)
+ {
+ genIfxJump (ifx, "a");
+ }
}
+
/*-----------------------------------------------------------------*/
-/* genNearPointerGet - emitcode for near pointer fetch */
+/* genDataPointerGet - generates code when ptr offset is known */
/*-----------------------------------------------------------------*/
static void
-genNearPointerGet (operand * left,
+genDataPointerGet (operand * left,
operand * result,
iCode * ic,
- iCode * pi)
+ iCode * ifx)
{
- int size, offset;
- sym_link *retype = getSpec (operandType (result));
-
- D(emitcode ("; genNearPointerGet",""));
-
- aopOp (left, ic, FALSE);
-
- /* 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_IMMD)
- || (AOP_TYPE (left) == AOP_LIT)
- /* !IS_BITVAR (retype) */
- /* && DCL_TYPE (ltype) == POINTER */ )
- {
- genDataPointerGet (left, result, ic);
- return;
- }
-
- /* if the operand is already in hx
- then we do nothing else we move the value to hx */
- if (AOP_TYPE (left) != AOP_STR)
- {
- /* if this is remateriazable */
- loadRegFromAop (hc08_reg_x, AOP (left), 0);
- loadRegFromConst (hc08_reg_h, zero);
- }
+ int size, offset = 0;
+ asmop *derefaop;
+
+ D(emitcode ("; genDataPointerGet",""));
- /* so hx now contains the address */
- aopOp (result, ic, FALSE);
+ aopOp (result, ic, TRUE);
+ size = AOP_SIZE (result);
- /* if bit then unpack */
- if (IS_BITVAR (retype))
- genUnpackBits (result);
- else
+ derefaop = aopDerefAop (AOP (left));
+ freeAsmop (left, NULL, ic, TRUE);
+ derefaop->size = size;
+
+ while (size--)
{
- size = AOP_SIZE (result);
- offset = size-1;
-
- while (size--)
- {
- accopWithMisc ("lda", ",x");
- if (size || pi)
- {
- rmwWithReg ("inc", hc08_reg_x);
- }
- storeRegToAop (hc08_reg_a, AOP (result), offset--);
- hc08_freeReg (hc08_reg_a);
- }
+ if (!ifx)
+ transferAopAop (derefaop, offset, AOP (result), offset);
+ else
+ loadRegFromAop (hc08_reg_a, derefaop, offset);
+ offset++;
}
- freeAsmop (left, NULL, ic, TRUE);
+ freeAsmop (NULL, derefaop, ic, TRUE);
freeAsmop (result, NULL, ic, TRUE);
- if (pi /* && AOP_TYPE (left) != AOP_IMMD && AOP_TYPE (left) != AOP_STR */) {
- aopOp (IC_RESULT (pi), pi, FALSE);
- storeRegToAop (hc08_reg_x, AOP (IC_RESULT (pi)), 0);
- freeAsmop (IC_RESULT (pi), NULL, pi, TRUE);
- pi->generated = 1;
- }
-
- hc08_freeReg (hc08_reg_hx);
-
+ if (ifx && !ifx->generated)
+ {
+ genIfxJump (ifx, "a");
+ }
}
/*-----------------------------------------------------------------*/
-/* genFarPointerGet - get value from far space */
+/* genPointerGet - generate code for pointer get */
/*-----------------------------------------------------------------*/
static void
-genFarPointerGet (operand * left,
- operand * result, iCode * ic, iCode * pi)
+genPointerGet (iCode * ic, iCode *pi, iCode *ifx)
{
+ operand *left = IC_LEFT (ic);
+ operand *result = IC_RESULT (ic);
int size, offset;
sym_link *retype = getSpec (operandType (result));
- D(emitcode ("; genFarPointerGet",""));
+ D(emitcode ("; genPointerGet",""));
+ if (getSize (operandType (result))>1)
+ ifx = NULL;
+
aopOp (left, ic, FALSE);
/* 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_IMMD &&
- !IS_BITVAR (retype)
- /* && DCL_TYPE (ltype) == POINTER */ )
- {
- genDataPointerGet (left, result, ic);
- return;
+ result is not bit variable type */
+ if (AOP_TYPE (left) == AOP_IMMD || AOP_TYPE (left) == AOP_LIT)
+ {
+ if (!IS_BITVAR (retype))
+ {
+ genDataPointerGet (left, result, ic, ifx);
+ return;
+ }
+ else
+ {
+ genUnpackBitsImmed (left, result, ic, ifx);
+ return;
+ }
}
/* if the operand is already in hx
/* if bit then unpack */
if (IS_BITVAR (retype))
- genUnpackBits (result);
+ genUnpackBits (result, ifx);
else
{
size = AOP_SIZE (result);
emitcode ("aix", "#1");
hc08_dirtyReg (hc08_reg_hx, FALSE);
}
- storeRegToAop (hc08_reg_a, AOP (result), offset--);
+ if (!ifx)
+ storeRegToAop (hc08_reg_a, AOP (result), offset);
+ offset--;
hc08_freeReg (hc08_reg_a);
}
}
freeAsmop (left, NULL, ic, TRUE);
freeAsmop (result, NULL, ic, TRUE);
- if (pi /* && AOP_TYPE (left) != AOP_IMMD && AOP_TYPE (left) != AOP_STR */) {
+ if (pi) {
aopOp (IC_RESULT (pi), pi, FALSE);
storeRegToAop (hc08_reg_hx, AOP (IC_RESULT (pi)), 0);
freeAsmop (IC_RESULT (pi), NULL, pi, TRUE);
pi->generated = 1;
}
+
+ if (ifx && !ifx->generated)
+ {
+ genIfxJump (ifx, "a");
+ }
hc08_freeReg (hc08_reg_hx);
}
-
-
/*-----------------------------------------------------------------*/
-/* genPointerGet - generate code for pointer get */
+/* genPackBits - generates code for packed bit storage */
/*-----------------------------------------------------------------*/
static void
-genPointerGet (iCode * ic, iCode *pi)
+genPackBits (sym_link * etype,
+ operand * right)
{
- operand *left, *result;
- sym_link *type, *etype;
- int p_type;
+ int offset = 0; /* source byte offset */
+ int rlen = 0; /* remaining bitfield length */
+ int blen; /* bitfield length */
+ int bstr; /* bitfield starting bit within byte */
+ int litval; /* source literal value (if AOP_LIT) */
+ unsigned char mask; /* bitmask within current byte */
+ int xoffset = 0;
- D(emitcode ("; genPointerGet",""));
+ D(emitcode ("; genPackBits",""));
- left = IC_LEFT (ic);
- result = IC_RESULT (ic);
+ blen = SPEC_BLEN (etype);
+ bstr = SPEC_BSTR (etype);
- /* depending on the type of pointer we need to
- move it to the correct pointer register */
- type = operandType (left);
- etype = getSpec (type);
- /* if left is of type of pointer then it is simple */
- if (IS_PTR (type) && !IS_FUNC (type->next))
- p_type = DCL_TYPE (type);
- else
+ /* If the bitfield length is less than a byte */
+ if (blen < 8)
{
- /* we have to go by the storage class */
- p_type = PTR_TYPE (SPEC_OCLS (etype));
+ mask = ((unsigned char) (0xFF << (blen + bstr)) |
+ (unsigned char) (0xFF >> (8 - bstr)));
+
+ if (AOP_TYPE (right) == AOP_LIT)
+ {
+ /* Case with a bitfield length <8 and literal source
+ */
+ litval = (int) floatFromVal (AOP (right)->aopu.aop_lit);
+ litval <<= bstr;
+ litval &= (~mask) & 0xff;
+
+ emitcode ("lda", ",x");
+ if ((mask|litval)!=0xff)
+ emitcode ("and","#0x%02x", mask);
+ if (litval)
+ emitcode ("ora","#0x%02x", litval);
+ hc08_dirtyReg (hc08_reg_a, FALSE);
+ emitcode ("sta", ",x");
+
+ hc08_freeReg (hc08_reg_a);
+ return;
+ }
+
+ /* Case with a bitfield length < 8 and arbitrary source
+ */
+ loadRegFromAop (hc08_reg_a, AOP (right), 0);
+ /* shift and mask source value */
+ AccLsh (bstr);
+ emitcode ("and", "#0x%02x", (~mask) & 0xff);
+ hc08_dirtyReg (hc08_reg_a, FALSE);
+ pushReg (hc08_reg_a, TRUE);
+
+ emitcode ("lda", ",x");
+ emitcode ("and", "#0x%02x", mask);
+ emitcode ("ora", "1,s");
+ emitcode ("sta", ",x");
+ pullReg (hc08_reg_a);
+
+ hc08_freeReg (hc08_reg_a);
+ return;
}
- /* special case when cast remat */
- if (p_type == GPOINTER && OP_SYMBOL(left)->remat &&
- IS_CAST_ICODE(OP_SYMBOL(left)->rematiCode)) {
- left = IC_RIGHT(OP_SYMBOL(left)->rematiCode);
- type = operandType (left);
- p_type = DCL_TYPE (type);
- }
- /* now that we have the pointer type we assign
- the pointer values */
- switch (p_type)
+ /* Bit length is greater than 7 bits. In this case, copy */
+ /* all except the partial byte at the end */
+ for (rlen=blen;rlen>=8;rlen-=8)
{
+ if (AOP (right)->type == AOP_DIR)
+ {
+ emitcode ("mov", "%s,x+", aopAdrStr(AOP (right), offset, FALSE));
+ xoffset++;
+ }
+ else
+ {
+ loadRegFromAop (hc08_reg_a, AOP (right), offset);
+ emitcode ("sta", "%d,x", offset);
+ }
+ offset++;
+ }
- case POINTER:
- case IPOINTER:
-#if 0
- genNearPointerGet (left, result, ic, pi);
- break;
-#endif
- case GPOINTER:
- case CPOINTER:
- case FPOINTER:
- genFarPointerGet (left, result, ic, pi);
- break;
+ /* If there was a partial byte at the end */
+ if (rlen)
+ {
+ mask = (((unsigned char) -1 << rlen) & 0xff);
+
+ if (AOP_TYPE (right) == AOP_LIT)
+ {
+ /* Case with partial byte and literal source
+ */
+ litval = (int) floatFromVal (AOP (right)->aopu.aop_lit);
+ litval >>= (blen-rlen);
+ litval &= (~mask) & 0xff;
+ emitcode ("lda", "%d,x", offset - xoffset);
+ hc08_dirtyReg (hc08_reg_a, FALSE);
+ if ((mask|litval)!=0xff)
+ emitcode ("and","#0x%02x", mask);
+ if (litval)
+ emitcode ("ora","#0x%02x", litval);
+ emitcode ("sta", "%d,x", offset - xoffset);
+ hc08_dirtyReg (hc08_reg_a, FALSE);
+ hc08_freeReg (hc08_reg_a);
+ return;
+ }
+
+ /* Case with partial byte and arbitrary source
+ */
+ loadRegFromAop (hc08_reg_a, AOP (right), offset);
+ emitcode ("and", "#0x%02x", (~mask) & 0xff);
+ hc08_dirtyReg (hc08_reg_a, FALSE);
+ pushReg (hc08_reg_a, TRUE);
+ emitcode ("lda", "%d,x", offset - xoffset);
+ emitcode ("and", "#0x%02x", mask);
+ emitcode ("ora", "1,s");
+ emitcode ("sta", "%d,x", offset - xoffset);
+ pullReg (hc08_reg_a);
}
+ hc08_freeReg (hc08_reg_a);
}
/*-----------------------------------------------------------------*/
/* genPackBits - generates code for packed bit storage */
/*-----------------------------------------------------------------*/
static void
-genPackBits (sym_link * etype,
- operand * right)
+genPackBitsImmed (operand *result, sym_link * etype, operand * right, iCode * ic)
{
+ asmop *derefaop;
+ int size;
int offset = 0; /* source byte offset */
int rlen = 0; /* remaining bitfield length */
int blen; /* bitfield length */
int litval; /* source literal value (if AOP_LIT) */
unsigned char mask; /* bitmask within current byte */
- D(emitcode ("; genPackBits",""));
+ D(emitcode ("; genPackBitsImmed",""));
blen = SPEC_BLEN (etype);
bstr = SPEC_BSTR (etype);
-
+
+ aopOp (right, ic, FALSE);
+ size = AOP_SIZE (right);
+
+ derefaop = aopDerefAop (AOP (result));
+ freeAsmop (result, NULL, ic, TRUE);
+ derefaop->size = size;
+
+ /* if the bitfield is a single bit in the direct page */
+ if (blen == 1 && derefaop->type == AOP_DIR)
+ {
+ if (AOP_TYPE (right) == AOP_LIT)
+ {
+ litval = (int) floatFromVal (AOP (right)->aopu.aop_lit);
+
+ emitcode ((litval & 1) ? "bset" : "bclr",
+ "#%d,%s", bstr, aopAdrStr (derefaop, 0, FALSE));
+ }
+ else
+ {
+ symbol *tlbl1 = newiTempLabel (NULL);
+ symbol *tlbl2 = newiTempLabel (NULL);
+
+ loadRegFromAop (hc08_reg_a, AOP (right), 0);
+ emitcode ("bit", "#1");
+ emitBranch ("bne", tlbl1);
+ emitcode ("bclr", "#%d,%s", bstr, aopAdrStr (derefaop, 0, FALSE));
+ emitBranch ("bra", tlbl2);
+ emitLabel (tlbl1);
+ emitcode ("bset", "#%d,%s", bstr, aopAdrStr (derefaop, 0, FALSE));
+ emitLabel (tlbl2);
+ hc08_freeReg (hc08_reg_a);
+ }
+ goto release;
+ }
+
/* If the bitfield length is less than a byte */
if (blen < 8)
{
litval <<= bstr;
litval &= (~mask) & 0xff;
- emitcode ("lda", ",x");
+ loadRegFromAop (hc08_reg_a, derefaop, 0);
if ((mask|litval)!=0xff)
emitcode ("and","#0x%02x", mask);
if (litval)
emitcode ("ora","#0x%02x", litval);
hc08_dirtyReg (hc08_reg_a, FALSE);
- emitcode ("sta", ",x");
+ storeRegToAop (hc08_reg_a, derefaop, 0);
hc08_freeReg (hc08_reg_a);
- return;
+ goto release;
}
/* Case with a bitfield length < 8 and arbitrary source
hc08_dirtyReg (hc08_reg_a, FALSE);
pushReg (hc08_reg_a, TRUE);
- emitcode ("lda", ",x");
+ loadRegFromAop (hc08_reg_a, derefaop, 0);
emitcode ("and", "#0x%02x", mask);
emitcode ("ora", "1,s");
- emitcode ("sta", ",x");
+ storeRegToAop (hc08_reg_a, derefaop, 0);
pullReg (hc08_reg_a);
hc08_freeReg (hc08_reg_a);
- return;
+ goto release;
}
/* Bit length is greater than 7 bits. In this case, copy */
/* all except the partial byte at the end */
for (rlen=blen;rlen>=8;rlen-=8)
{
- if (AOP (right)->type == AOP_DIR)
- {
- emitcode ("mov", "%s,x+", aopAdrStr(AOP (right), offset, FALSE));
- }
- else
- {
- loadRegFromAop (hc08_reg_a, AOP (right), offset);
- emitcode ("sta", "%d,x", offset);
- }
+ transferAopAop (AOP (right), offset, derefaop, size-offset);
offset++;
}
litval = (int) floatFromVal (AOP (right)->aopu.aop_lit);
litval >>= (blen-rlen);
litval &= (~mask) & 0xff;
- emitcode ("lda", "%d,x", offset);
- hc08_dirtyReg (hc08_reg_a, FALSE);
+ loadRegFromAop (hc08_reg_a, derefaop, size-offset);
if ((mask|litval)!=0xff)
emitcode ("and","#0x%02x", mask);
if (litval)
emitcode ("ora","#0x%02x", litval);
- emitcode ("sta", "%d,x", offset);
+ hc08_dirtyReg (hc08_reg_a, FALSE);
+ storeRegToAop (hc08_reg_a, derefaop, size-offset);
hc08_dirtyReg (hc08_reg_a, FALSE);
hc08_freeReg (hc08_reg_a);
- return;
+ goto release;
}
/* Case with partial byte and arbitrary source
*/
- loadRegFromAop (hc08_reg_a, AOP (right), offset++);
+ loadRegFromAop (hc08_reg_a, AOP (right), offset);
emitcode ("and", "#0x%02x", (~mask) & 0xff);
hc08_dirtyReg (hc08_reg_a, FALSE);
pushReg (hc08_reg_a, TRUE);
- emitcode ("lda", ",x");
+ loadRegFromAop (hc08_reg_a, derefaop, size-offset);
emitcode ("and", "#0x%02x", mask);
emitcode ("ora", "1,s");
- emitcode ("sta", ",x");
+ storeRegToAop (hc08_reg_a, derefaop, size-offset);
+ pullReg (hc08_reg_a);
}
hc08_freeReg (hc08_reg_a);
+
+release:
+ freeAsmop (right, NULL, ic, TRUE);
+ freeAsmop (NULL, derefaop, ic, TRUE);
}
/*-----------------------------------------------------------------*/
freeAsmop (NULL, derefaop, ic, TRUE);
}
-/*-----------------------------------------------------------------*/
-/* genNearPointerSet - emitcode for near pointer put */
-/*-----------------------------------------------------------------*/
-static void
-genNearPointerSet (operand * right,
- operand * result,
- iCode * ic,
- iCode * pi)
-{
- int size, offset;
- sym_link *retype = getSpec (operandType (right));
- sym_link *letype = getSpec (operandType (result));
-
- D(emitcode ("; genNearPointerSet",""));
-
- aopOp (result, ic, FALSE);
-
- /* if the result is rematerializable &
- in data space & not a bit variable */
- if (AOP_TYPE (result) == AOP_IMMD &&
- /* DCL_TYPE (ptype) == POINTER && */
- !IS_BITVAR (retype) &&
- !IS_BITVAR (letype))
- {
- genDataPointerSet (right, result, ic);
- return;
- }
-
- /* if the operand is already in hx
- then we do nothing else we move the value to hx */
- if (AOP_TYPE (result) != AOP_STR)
- {
- loadRegFromAop (hc08_reg_x, AOP (result), 0);
- loadRegFromConst (hc08_reg_h, zero);
- }
- /* so hx now contains the address */
- aopOp (right, ic, FALSE);
-
- /* if bit then unpack */
- if (IS_BITVAR (retype) || IS_BITVAR (letype))
- genPackBits ((IS_BITVAR (retype) ? retype : letype), right);
- else
- {
- size = AOP_SIZE (right);
- offset = size-1;
-
- while (size--)
- {
- loadRegFromAop (hc08_reg_a, AOP (right), offset--);
- accopWithMisc ("sta", ",x");
- if (size || pi)
- {
- rmwWithReg ("inc", hc08_reg_x);
- }
- hc08_freeReg (hc08_reg_a);
- }
- }
-
- freeAsmop (result, NULL, ic, TRUE);
- freeAsmop (right, NULL, ic, TRUE);
-
- if (pi /* && AOP_TYPE (result) != AOP_STR && AOP_TYPE (result) != AOP_IMMD */) {
- aopOp (IC_RESULT (pi), pi, FALSE);
- storeRegToAop (hc08_reg_x, AOP (IC_RESULT (pi)), 0);
- freeAsmop (IC_RESULT (pi), NULL, pi, TRUE);
- pi->generated=1;
- }
-
- hc08_freeReg (hc08_reg_hx);
-
-}
-
/*-----------------------------------------------------------------*/
-/* genFarPointerSet - set value from far space */
+/* genPointerSet - stores the value into a pointer location */
/*-----------------------------------------------------------------*/
static void
-genFarPointerSet (operand * right,
- operand * result, iCode * ic, iCode * pi)
+genPointerSet (iCode * ic, iCode *pi)
{
+ operand *right = IC_RIGHT (ic);
+ operand *result = IC_RESULT (ic);
+ sym_link *type, *etype;
int size, offset;
sym_link *retype = getSpec (operandType (right));
sym_link *letype = getSpec (operandType (result));
- D(emitcode ("; genFarPointerSet",""));
+ D(emitcode ("; genPointerSet",""));
+ type = operandType (result);
+ etype = getSpec (type);
+
aopOp (result, ic, FALSE);
- /* if the result is rematerializable &
- in data space & not a bit variable */
- if (AOP_TYPE (result) == AOP_IMMD &&
- /* DCL_TYPE (ptype) == POINTER && */
- !IS_BITVAR (retype) &&
- !IS_BITVAR (letype))
+ /* if the result is rematerializable */
+ if (AOP_TYPE (result) == AOP_IMMD || AOP_TYPE (result) == AOP_LIT)
{
- genDataPointerSet (right, result, ic);
- return;
+ if (!IS_BITVAR (retype) && !IS_BITVAR (letype))
+ {
+ genDataPointerSet (right, result, ic);
+ return;
+ }
+ else
+ {
+ genPackBitsImmed (result, (IS_BITVAR (retype) ? retype : letype), right, ic);
+ return;
+ }
}
/* if the operand is already in hx
freeAsmop (result, NULL, ic, TRUE);
freeAsmop (right, NULL, ic, TRUE);
- if (pi /* && AOP_TYPE (result) != AOP_STR && AOP_TYPE (result) != AOP_IMMD */) {
+ if (pi) {
aopOp (IC_RESULT (pi), pi, FALSE);
storeRegToAop (hc08_reg_hx, AOP (IC_RESULT (pi)), 0);
freeAsmop (IC_RESULT (pi), NULL, pi, TRUE);
}
hc08_freeReg (hc08_reg_hx);
-
-
-}
-
-
-/*-----------------------------------------------------------------*/
-/* genPointerSet - stores the value into a pointer location */
-/*-----------------------------------------------------------------*/
-static void
-genPointerSet (iCode * ic, iCode *pi)
-{
- operand *right, *result;
- sym_link *type, *etype;
- int p_type;
-
- D(emitcode ("; genPointerSet",""));
-
- right = IC_RIGHT (ic);
- result = IC_RESULT (ic);
-
- /* depending on the type of pointer we need to
- move it to the correct pointer register */
- type = operandType (result);
- etype = getSpec (type);
- /* if left is of type of pointer then it is simple */
- if (IS_PTR (type) && !IS_FUNC (type->next))
- {
- p_type = DCL_TYPE (type);
- }
- else
- {
- /* we have to go by the storage class */
- p_type = PTR_TYPE (SPEC_OCLS (etype));
- }
-
- /* special case when cast remat */
- if (p_type == GPOINTER && OP_SYMBOL(result)->remat &&
- IS_CAST_ICODE(OP_SYMBOL(result)->rematiCode)) {
- result = IC_RIGHT(OP_SYMBOL(result)->rematiCode);
- type = operandType (result);
- p_type = DCL_TYPE (type);
- }
- /* now that we have the pointer type we assign
- the pointer values */
- switch (p_type)
- {
-
- case POINTER:
- case IPOINTER:
-#if 0
- genNearPointerSet (right, result, ic, pi);
- break;
-#endif
-
- case GPOINTER:
- case FPOINTER:
- genFarPointerSet (right, result, ic, pi);
- break;
-
- default:
- werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
- "genPointerSet: illegal pointer type");
- }
}
emitcode ("add","1,s");
transferRegReg (hc08_reg_a, hc08_reg_x, TRUE);
loadRegFromConst (hc08_reg_h, zero);
+ pullReg (hc08_reg_a);
jtab = newiTempLabel (NULL);
emitcode ("jmp", "%05d$,x", jtab->key + 100);
if (operandLitValue (IC_RIGHT (ic)) != 1)
return 0;
+ /* dbnz doesn't support extended mode */
+ if (isOperandInFarSpace (IC_RESULT (ic)))
+ return 0;
+
/* if the size of this greater than one then no
saving */
// if (getSize (operandType (IC_RESULT (ic))) > 1)
freeAsmop (IC_RESULT (ic), NULL, ic, TRUE);
}
+/*-----------------------------------------------------------------*/
+/* genDummyRead - generate code for dummy read of volatiles */
+/*-----------------------------------------------------------------*/
+static void
+genDummyRead (iCode * ic)
+{
+ operand *op;
+ int size, offset;
+
+ D(emitcode("; genDummyRead",""));
+
+ op = IC_RIGHT (ic);
+ if (op && IS_SYMOP (op))
+ {
+
+ aopOp (op, ic, FALSE);
+
+ size = AOP_SIZE (op);
+ offset = 0;
+
+ while (size--)
+ {
+ loadRegFromAop (hc08_reg_a, AOP (op), offset);
+ hc08_freeReg (hc08_reg_a);
+ offset++;
+ }
+
+ freeAsmop (op, NULL, ic, TRUE);
+ }
+ op = IC_LEFT (ic);
+ if (op && IS_SYMOP (op))
+ {
+
+ aopOp (op, ic, FALSE);
+
+ size = AOP_SIZE (op);
+ offset = 0;
+
+ while (size--)
+ {
+ loadRegFromAop (hc08_reg_a, AOP (op), offset);
+ hc08_freeReg (hc08_reg_a);
+ offset++;
+ }
+
+ freeAsmop (op, NULL, ic, TRUE);
+ }
+}
+
+/*-----------------------------------------------------------------*/
+/* genCritical - generate code for start of a critical sequence */
+/*-----------------------------------------------------------------*/
+static void
+genCritical (iCode *ic)
+{
+ D(emitcode("; genCritical",""));
+
+ if (IC_RESULT (ic))
+ aopOp (IC_RESULT (ic), ic, TRUE);
+
+ emitcode ("tpa", "");
+ hc08_dirtyReg (hc08_reg_a, FALSE);
+ emitcode ("sei", "");
+
+ if (IC_RESULT (ic))
+ storeRegToAop (hc08_reg_a, AOP (IC_RESULT (ic)), 0);
+ else
+ pushReg (hc08_reg_a, FALSE);
+
+ hc08_freeReg (hc08_reg_a);
+ if (IC_RESULT (ic))
+ freeAsmop (IC_RESULT (ic), NULL, ic, TRUE);
+}
+
+/*-----------------------------------------------------------------*/
+/* genEndCritical - generate code for end of a critical sequence */
+/*-----------------------------------------------------------------*/
+static void
+genEndCritical (iCode *ic)
+{
+ D(emitcode("; genEndCritical",""));
+
+ if (IC_RIGHT (ic))
+ {
+ aopOp (IC_RIGHT (ic), ic, FALSE);
+ loadRegFromAop (hc08_reg_a, AOP (IC_RIGHT (ic)), 0);
+ emitcode ("tap", "");
+ hc08_freeReg (hc08_reg_a);
+ freeAsmop (IC_RIGHT (ic), NULL, ic, TRUE);
+ }
+ else
+ {
+ pullReg (hc08_reg_a);
+ emitcode ("tap", "");
+ }
+}
+
+
+
/*-----------------------------------------------------------------*/
/* genhc08Code - generate code for HC08 based controllers */
/*-----------------------------------------------------------------*/
{
iCode *ic;
int cln = 0;
+ int clevel = 0;
+ int cblock = 0;
lineHead = lineCurr = NULL;
/* if debug information required */
if (options.debug && currFunc)
{
- debugFile->writeFunction(currFunc);
+ debugFile->writeFunction (currFunc, lic);
+ #if 0
_G.debugLine = 1;
if (IS_STATIC (currFunc->etype))
emitcode ("", "F%s$%s$0$0 ==.", moduleName, currFunc->name);
else
emitcode ("", "G$%s$0$0 ==.", currFunc->name);
_G.debugLine = 0;
+ #endif
}
/* stack pointer name */
if (options.useXstack)
spname = "_spx";
else
spname = "sp";
+
+ debugFile->writeFrameAddress (NULL, NULL, 0); /* have no idea where frame is now */
hc08_aop_pass[0] = newAsmop (AOP_REG);
hc08_aop_pass[0]->size=1;
for (ic = lic; ic; ic = ic->next)
{
-
+
+ _G.current_iCode = ic;
+
+ if (ic->level != clevel || ic->block != cblock)
+ {
+ if (options.debug)
+ {
+ debugFile->writeScope(ic);
+ }
+ clevel = ic->level;
+ cblock = ic->block;
+ }
+
if (ic->lineno && cln != ic->lineno)
{
if (options.debug)
{
+ debugFile->writeCLine(ic);
+ #if 0
_G.debugLine = 1;
emitcode ("", "C$%s$%d$%d$%d ==.",
FileBaseName (ic->filename), ic->lineno,
ic->level, ic->block);
_G.debugLine = 0;
+ #endif
}
if (!options.noCcodeInAsm) {
emitcode ("", ";%s:%d: %s", ic->filename, ic->lineno,
break;
case GET_VALUE_AT_ADDRESS:
- genPointerGet (ic, hasInc(IC_LEFT(ic),ic,getSize(operandType(IC_RESULT(ic)))));
+ genPointerGet (ic,
+ hasInc (IC_LEFT (ic), ic,
+ getSize (operandType (IC_RESULT (ic)))),
+ ifxForOp (IC_RESULT (ic), ic) );
break;
case '=':
addSet (&_G.sendSet, ic);
break;
+ case DUMMY_READ_VOLATILE:
+ genDummyRead (ic);
+ break;
+
+ case CRITICAL:
+ genCritical (ic);
+ break;
+
+ case ENDCRITICAL:
+ genEndCritical (ic);
+ break;
+
+ case SWAP:
+ genSwap (ic);
+ break;
+
default:
ic = ic;
}
if (!hc08_reg_a->isFree)
- emitcode("","; forgot to free a");
+ D(emitcode("","; forgot to free a"));
if (!hc08_reg_x->isFree)
- emitcode("","; forgot to free x");
+ D(emitcode("","; forgot to free x"));
if (!hc08_reg_h->isFree)
- emitcode("","; forgot to free h");
+ D(emitcode("","; forgot to free h"));
if (!hc08_reg_hx->isFree)
- emitcode("","; forgot to free hx");
+ D(emitcode("","; forgot to free hx"));
if (!hc08_reg_xa->isFree)
- emitcode("","; forgot to free xa");
+ D(emitcode("","; forgot to free xa"));
}
+ debugFile->writeFrameAddress (NULL, NULL, 0); /* have no idea where frame is now */
+
/* now we are ready to call the
peep hole optimizer */
projects / fw / sdcc / blobdiff