return;
}
- switch (regidx)
+ if (aop->type == AOP_DUMMY)
+ return;
+
+ switch (regidx)
{
case A_IDX:
if ((aop->type == AOP_REG) && (loffset < aop->size))
break;
loadRegFromConst (aop->aopu.aop_reg[loffset], c);
break;
+ case AOP_DUMMY:
+ break;
default:
if (hc08_reg_a->isFree)
{
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;
}
}
#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;
}
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);
}
/*-----------------------------------------------------------------*/
)
&& (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);
}
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 ((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;
//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");
}
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);
}
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--)
{
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--)
{
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);
+}
+
#if 0
/*-----------------------------------------------------------------*/
/* AccRol - rotate left accumulator by known count */
** 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);
}
}
bool needpula = FALSE;
bool needpulx = FALSE;
- needpula = pushRegIfUsed (hc08_reg_a);
- needpulx = pushRegIfUsed (hc08_reg_x);
+ 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;
loadRegFromAop (hc08_reg_xa, AOP (left), offl);
}
/* special case when cast remat */
- if (p_type == GPOINTER && OP_SYMBOL(left)->remat &&
+ if (p_type == GPOINTER && IS_SYMOP(left) && OP_SYMBOL(left)->remat &&
IS_CAST_ICODE(OP_SYMBOL(left)->rematiCode)) {
left = IC_RIGHT(OP_SYMBOL(left)->rematiCode);
type = operandType (left);
emitcode ("and", "#0x%02x", mask);
emitcode ("ora", "1,s");
emitcode ("sta", ",x");
+ pullReg (hc08_reg_a);
}
hc08_freeReg (hc08_reg_a);
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)
static void
genDummyRead (iCode * ic)
{
- operand *right;
+ operand *op;
int size, offset;
D(emitcode("; genDummyRead",""));
- right = IC_RIGHT (ic);
+ op = IC_RIGHT (ic);
+ if (op && IS_SYMOP (op))
+ {
- aopOp (right, ic, FALSE);
+ aopOp (op, ic, FALSE);
- /* bit variables done */
- /* general case */
- size = AOP_SIZE (right);
- offset = 0;
+ size = AOP_SIZE (op);
+ offset = 0;
- while (size--)
+ 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))
{
- loadRegFromAop (hc08_reg_a, AOP (right), offset);
- hc08_freeReg (hc08_reg_a);
- offset++;
- }
- freeAsmop (right, NULL, ic, TRUE);
+ 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);
+ }
}
/*-----------------------------------------------------------------*/
case ENDCRITICAL:
genEndCritical (ic);
break;
+
+ case SWAP:
+ genSwap (ic);
+ break;
default:
ic = ic;
projects / fw / sdcc / blobdiff