#include "SDCCglobl.h"
#include "newalloc.h"
-#ifdef HAVE_SYS_ISA_DEFS_H
-#include <sys/isa_defs.h>
-#else
-#ifdef HAVE_MACHINE_ENDIAN_H
-#include <machine/endian.h>
-#else
-#ifdef HAVE_ENDIAN_H
-#include <endian.h>
-#else
-#if !defined(__BORLANDC__) && !defined(_MSC_VER) && !defined(__MINGW32__) && !defined(__CYGWIN__)
-#warning "Cannot determine ENDIANESS of this machine assuming LITTLE_ENDIAN"
-#warning "If you running sdcc on an INTEL 80x86 Platform you are okay"
-#endif
-#endif
-#endif
-#endif
-
#include "common.h"
#include "SDCCpeeph.h"
#include "ralloc.h"
static char *accUse[] =
{"a", "b"};
-static short rbank = -1;
+static unsigned short rbank = -1;
static struct
{
(IC_RESULT(x) && IC_RESULT(x)->aop && \
IC_RESULT(x)->aop->type == AOP_STK )
-#define MOVA(x) if (strcmp(x,"a") && strcmp(x,"acc")) emitcode("mov","a,%s",x);
+#define MOVA(x) mova(x) /* use function to avoid multiple eval */
#define CLRC emitcode("clr","c")
#define SETC emitcode("setb","c")
/* emitcode - writes the code into a file : for now it is simple */
/*-----------------------------------------------------------------*/
static void
-emitcode (char *inst, char *fmt,...)
+emitcode (char *inst, const char *fmt,...)
{
va_list ap;
char lb[INITIAL_INLINEASM];
va_end (ap);
}
+/*-----------------------------------------------------------------*/
+/* mova - moves specified value into accumulator */
+/*-----------------------------------------------------------------*/
+static void
+mova (const char *x)
+{
+ /* do some early peephole optimization */
+ if (!strcmp(x, "a") || !strcmp(x, "acc"))
+ return;
+
+ emitcode("mov","a,%s", x);
+}
+
/*-----------------------------------------------------------------*/
/* getFreePtr - returns r0 or r1 whichever is free or can be pushed */
/*-----------------------------------------------------------------*/
(*aopp)->type = AOP_R1;
return mcs51_regWithIdx (R1_IDX);
}
-
endOfWorld:
- /* I said end of world but not quite end of world yet */
- /* if this is a result then we can push it on the stack */
- if (result)
- {
- (*aopp)->type = AOP_STK;
- return NULL;
+ /* I said end of world, but not quite end of world yet */
+ if (result) {
+ /* we can push it on the stack */
+ (*aopp)->type = AOP_STK;
+ return NULL;
+ } else {
+ /* in the case that result AND left AND right needs a pointer reg
+ we can safely use the result's */
+ if (bitVectBitValue (mcs51_rUmaskForOp(IC_RESULT(ic)), R0_IDX)) {
+ (*aopp)->type = AOP_R0;
+ return mcs51_regWithIdx (R0_IDX);
+ }
+ if (bitVectBitValue (mcs51_rUmaskForOp(IC_RESULT(ic)), R1_IDX)) {
+ (*aopp)->type = AOP_R1;
+ return mcs51_regWithIdx (R1_IDX);
}
+ }
- /* other wise this is true end of the world */
+ /* now this is REALLY the end of the world */
werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
"getFreePtr should never reach here");
exit (1);
}
}
+/*-----------------------------------------------------------------*/
+/* aopGetUsesAcc - indicates ahead of time whether aopGet() will */
+/* clobber the accumulator */
+/*-----------------------------------------------------------------*/
+static bool
+aopGetUsesAcc (asmop *aop, int offset)
+{
+ if (offset > (aop->size - 1))
+ return FALSE;
+
+ switch (aop->type)
+ {
+
+ case AOP_R0:
+ case AOP_R1:
+ if (aop->paged)
+ return TRUE;
+ return FALSE;
+ case AOP_DPTR:
+ return TRUE;
+ case AOP_IMMD:
+ return FALSE;
+ case AOP_DIR:
+ return FALSE;
+ case AOP_REG:
+ wassert(strcmp(aop->aopu.aop_reg[offset]->name, "a"));
+ return FALSE;
+ case AOP_CRY:
+ return TRUE;
+ case AOP_ACC:
+ return TRUE;
+ case AOP_LIT:
+ return FALSE;
+ case AOP_STR:
+ if (strcmp (aop->aopu.aop_str[offset], "a") == 0)
+ return TRUE;
+ return FALSE;
+ default:
+ /* Error case --- will have been caught already */
+ wassert(0);
+ return FALSE;
+ }
+}
+
+
/*-----------------------------------------------------------------*/
/* aopGet - for fetching value of the aop */
/*-----------------------------------------------------------------*/
return rs;
case AOP_DPTR:
+ if (aop->code && aop->coff==0 && offset>=1) {
+ emitcode ("mov", "a,#0x%02x", offset);
+ emitcode ("movc", "a,@a+dptr");
+ return (dname ? "acc" : "a");
+ }
+
while (offset > aop->coff)
{
emitcode ("inc", "dptr");
/* aopPut - puts a string for a aop */
/*-----------------------------------------------------------------*/
static void
-aopPut (asmop * aop, char *s, int offset)
+aopPut (asmop * aop, const char *s, int offset, bool bvolatile)
{
char *d = buffer;
else
sprintf (d, "%s", aop->aopu.aop_dir);
- if (strcmp (d, s))
+ if (strcmp (d, s) ||
+ bvolatile)
emitcode ("mov", "%s,%s", d, s);
break;
if (aop->code)
{
werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
- "aopPut writting to code space");
+ "aopPut writing to code space");
exit (1);
}
case AOP_STR:
aop->coff = offset;
- if (strcmp (aop->aopu.aop_str[offset], s))
+ if (strcmp (aop->aopu.aop_str[offset], s) ||
+ bvolatile)
emitcode ("mov", "%s,%s", aop->aopu.aop_str[offset], s);
break;
case AOP_ACC:
aop->coff = offset;
- if (!offset && (strcmp (s, "acc") == 0))
+ if (!offset && (strcmp (s, "acc") == 0) &&
+ !bvolatile)
break;
- if (strcmp (aop->aopu.aop_str[offset], s))
+ if (strcmp (aop->aopu.aop_str[offset], s) &&
+ !bvolatile)
emitcode ("mov", "%s,%s", aop->aopu.aop_str[offset], s);
break;
char *l;
symbol *tlbl;
- D(emitcode (";", "genNotFloat"));
+ D(emitcode ("; genNotFloat",""));
/* we will put 127 in the first byte of
the result */
- aopPut (AOP (res), "#127", 0);
+ aopPut (AOP (res), "#127", 0, isOperandVolatile (op, FALSE));
size = AOP_SIZE (op) - 1;
offset = 1;
}
tlbl = newiTempLabel (NULL);
- aopPut (res->aop, one, 1);
+ aopPut (res->aop, one, 1, isOperandVolatile (op, FALSE));
emitcode ("jz", "%05d$", (tlbl->key + 100));
- aopPut (res->aop, zero, 1);
+ aopPut (res->aop, zero, 1, isOperandVolatile (op, FALSE));
emitcode ("", "%05d$:", (tlbl->key + 100));
size = res->aop->size - 2;
offset = 2;
/* put zeros in the rest */
while (size--)
- aopPut (res->aop, zero, offset++);
+ aopPut (res->aop, zero, offset++, isOperandVolatile (op, FALSE));
}
/*-----------------------------------------------------------------*/
size = getDataSize (result);
if (size)
{
- aopPut (AOP (result), "a", 0);
+ aopPut (AOP (result), "a", 0, isOperandVolatile (result, FALSE));
size--;
offset = 1;
/* unsigned or positive */
while (size--)
{
- aopPut (AOP (result), zero, offset++);
+ aopPut (AOP (result), zero, offset++, isOperandVolatile (result, FALSE));
}
}
}
{
/* if the result is bit */
if (AOP_TYPE (result) == AOP_CRY)
- aopPut (AOP (result), "c", 0);
+ aopPut (AOP (result), "c", 0, isOperandVolatile (result, FALSE));
else
{
emitcode ("clr", "a");
symbol *tlbl;
sym_link *optype = operandType (IC_LEFT (ic));
- D(emitcode (";", "genNot"));
+ D(emitcode ("; genNot",""));
/* assign asmOps to operand & result */
aopOp (IC_LEFT (ic), ic, FALSE);
int size;
symbol *tlbl;
- D(emitcode (";", "genCpl"));
+ D(emitcode ("; genCpl",""));
/* assign asmOps to operand & result */
aopOp (IC_LEFT (ic), ic, FALSE);
char *l = aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE);
MOVA (l);
emitcode ("cpl", "a");
- aopPut (AOP (IC_RESULT (ic)), "a", offset++);
+ aopPut (AOP (IC_RESULT (ic)), "a", offset++, isOperandVolatile (IC_RESULT (ic), FALSE));
}
int size, offset = 0;
char *l;
- D(emitcode (";", "genUminusFloat"));
-
- /* for this we just need to flip the
- first it then copy the rest in place */
- size = AOP_SIZE (op) - 1;
- l = aopGet (AOP (op), 3, FALSE, FALSE);
+ D(emitcode ("; genUminusFloat",""));
- MOVA (l);
+ /* for this we just copy and then flip the bit */
- emitcode ("cpl", "acc.7");
- aopPut (AOP (result), "a", 3);
+ size = AOP_SIZE (op) - 1;
while (size--)
{
aopPut (AOP (result),
aopGet (AOP (op), offset, FALSE, FALSE),
- offset);
+ offset,
+ isOperandVolatile (result, FALSE));
offset++;
}
+
+ l = aopGet (AOP (op), offset, FALSE, FALSE);
+
+ MOVA (l);
+
+ emitcode ("cpl", "acc.7");
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
/*-----------------------------------------------------------------*/
sym_link *optype, *rtype;
- D(emitcode (";", "genUminus"));
+ D(emitcode ("; genUminus",""));
/* assign asmops */
aopOp (IC_LEFT (ic), ic, FALSE);
emitcode ("clr", "a");
emitcode ("subb", "a,%s", l);
}
- aopPut (AOP (IC_RESULT (ic)), "a", offset++);
+ aopPut (AOP (IC_RESULT (ic)), "a", offset++, isOperandVolatile (IC_RESULT (ic), FALSE));
}
/* if any remaining bytes in the result */
emitcode ("rlc", "a");
emitcode ("subb", "a,acc");
while (size--)
- aopPut (AOP (IC_RESULT (ic)), "a", offset++);
+ aopPut (AOP (IC_RESULT (ic)), "a", offset++, isOperandVolatile (IC_RESULT (ic), FALSE));
}
release:
/* if the registers have been saved already or don't need to be then
do nothing */
- if (ic->regsSaved || IFFUNC_CALLEESAVES(OP_SYMBOL(IC_LEFT(ic))->type) ||
- IFFUNC_ISNAKED(OP_SYM_TYPE(IC_LEFT (ic))))
+ if (ic->regsSaved)
return;
-
+ if (IS_SYMOP(IC_LEFT(ic)) &&
+ (IFFUNC_CALLEESAVES(OP_SYMBOL(IC_LEFT(ic))->type) ||
+ IFFUNC_ISNAKED(OP_SYM_TYPE(IC_LEFT (ic)))))
+ return;
+
/* safe the registers in use at this time but skip the
ones for the result */
rsave = bitVectCplAnd (bitVectCopy (ic->rMask),
int size = AOP_SIZE (oper);
while (size--)
{
- aopPut (AOP (oper), fReturn[offset], offset);
+ aopPut (AOP (oper), fReturn[offset], offset, isOperandVolatile (oper, FALSE));
offset++;
}
}
regs *r;
int size, offset = 0;
- D(emitcode (";", "genXpush"));
+ D(emitcode ("; genXpush",""));
aopOp (IC_LEFT (ic), ic, FALSE);
r = getFreePtr (ic, &aop, FALSE);
int size, offset = 0;
char *l;
- D(emitcode (";", "genIpush"));
+ D(emitcode ("; genIpush",""));
/* if this is not a parm push : ie. it is spill push
and spill push is always done on the local stack */
{
int size, offset;
- D(emitcode (";", "genIpop"));
+ D(emitcode ("; genIpop",""));
/* if the temp was not pushed then */
if (OP_SYMBOL (IC_LEFT (ic))->isspilt)
// bool restoreBank = FALSE;
bool swapBanks = FALSE;
- D(emitcode(";", "genCall"));
+ D(emitcode("; genCall",""));
dtype = operandType (IC_LEFT (ic));
/* if send set is not empty the assign */
// bool restoreBank=FALSE;
bool swapBanks = FALSE;
- D(emitcode(";", "genPCall"));
+ D(emitcode("; genPCall",""));
/* if caller saves & we have not saved then */
if (!ic->regsSaved)
/*-----------------------------------------------------------------*/
/* inExcludeList - return 1 if the string is in exclude Reg list */
/*-----------------------------------------------------------------*/
+static int
+regsCmp(void *p1, void *p2)
+{
+ return (STRCASECMP((char *)p1, (char *)(p2)) == 0);
+}
+
static bool
inExcludeList (char *s)
{
- int i = 0;
+ const char *p = setFirstItem(options.excludeRegsSet);
- if (options.excludeRegs[i] &&
- STRCASECMP (options.excludeRegs[i], "none") == 0)
+ if (p == NULL || STRCASECMP(p, "none") == 0)
return FALSE;
- for (i = 0; options.excludeRegs[i]; i++)
- {
- if (options.excludeRegs[i] &&
- STRCASECMP (s, options.excludeRegs[i]) == 0)
- return TRUE;
- }
- return FALSE;
+
+ return isinSetWith(options.excludeRegsSet, s, regsCmp);
}
/*-----------------------------------------------------------------*/
}
}
}
- // jwk: this needs a closer look
+ // TODO: this needs a closer look
SPEC_ISR_SAVED_BANKS(currFunc->etype) = banksToSave;
}
}
}
else
{
- /* not callee-saves, we can clobber ar0 */
- emitcode ("mov", "ar0,a");
+ /* not callee-saves, we can clobber r0 */
+ emitcode ("mov", "r0,a");
emitcode ("mov", "a,sp");
emitcode ("add", "a,#0x%02x", ((char) sym->stack & 0xff));
emitcode ("mov", "sp,a");
- emitcode ("mov", "a,ar0");
+ emitcode ("mov", "a,r0");
}
}
else
* Restore any register banks saved by genFunction
* in reverse order.
*/
- // jwk: this needs a closer look
unsigned savedBanks = SPEC_ISR_SAVED_BANKS(currFunc->etype);
int ix;
{
int size, offset = 0, pushed = 0;
- D(emitcode (";", "genRet"));
+ D(emitcode ("; genRet",""));
/* if we have no return value then
just generate the "ret" */
if ((icount = (unsigned int) floatFromVal (AOP (IC_RIGHT (ic))->aopu.aop_lit)) > 4)
return FALSE;
- D(emitcode (";", "genPlusIncr"));
+ D(emitcode ("; genPlusIncr",""));
- /* if increment 16 bits in register */
- if (AOP_TYPE(IC_LEFT(ic)) == AOP_REG &&
+ /* if increment >=16 bits in register or direct space */
+ if ((AOP_TYPE(IC_LEFT(ic)) == AOP_REG || AOP_TYPE(IC_LEFT(ic)) == AOP_DIR ) &&
sameRegs (AOP (IC_LEFT (ic)), AOP (IC_RESULT (ic))) &&
(size > 1) &&
(icount == 1))
{
MOVA (aopGet (AOP (IC_LEFT (ic)), 0, FALSE, FALSE));
emitcode ("add", "a,#0x%02x", ((char) icount) & 0xff);
- aopPut (AOP (IC_RESULT (ic)), "a", 0);
+ aopPut (AOP (IC_RESULT (ic)), "a", 0, isOperandVolatile (IC_RESULT (ic), FALSE));
}
else
{
/* if the result is a bit */
if (AOP_TYPE (result) == AOP_CRY)
{
- aopPut (AOP (result), "a", 0);
+ aopPut (AOP (result), "a", 0, isOperandVolatile (result, FALSE));
}
else
{
static void
genPlusBits (iCode * ic)
{
- D(emitcode (";", "genPlusBits"));
+ D(emitcode ("; genPlusBits",""));
if (AOP_TYPE (IC_RESULT (ic)) == AOP_CRY)
{
!sameRegs (AOP (IC_RESULT (ic)), AOP (IC_LEFT (ic))))
aopPut (AOP (IC_RESULT (ic)),
aopGet (AOP (IC_LEFT (ic)), 2, FALSE, FALSE),
- 2);
+ 2,
+ isOperandVolatile (IC_RESULT (ic), FALSE));
if (AOP_SIZE (IC_RESULT (ic)) == 3 &&
AOP_SIZE (IC_RIGHT (ic)) == 3 &&
!sameRegs (AOP (IC_RESULT (ic)), AOP (IC_RIGHT (ic))))
aopPut (AOP (IC_RESULT (ic)),
aopGet (AOP (IC_RIGHT (ic)), 2, FALSE, FALSE),
- 2);
+ 2,
+ isOperandVolatile (IC_RESULT (ic), FALSE));
if (AOP_SIZE (IC_RESULT (ic)) == 3 &&
AOP_SIZE (IC_LEFT (ic)) < 3 &&
{
char buffer[5];
sprintf (buffer, "#%d", pointerCode (getSpec (operandType (IC_LEFT (ic)))));
- aopPut (AOP (IC_RESULT (ic)), buffer, 2);
+ aopPut (AOP (IC_RESULT (ic)), buffer, 2, isOperandVolatile (IC_RESULT (ic), FALSE));
}
}
#else
{
aopPut (AOP (IC_RESULT (ic)),
aopGet (AOP (IC_LEFT (ic)), GPTRSIZE - 1, FALSE, FALSE),
- GPTRSIZE - 1);
+ GPTRSIZE - 1,
+ isOperandVolatile (IC_RESULT (ic), FALSE));
}
if (opIsGptr (IC_RESULT (ic)) &&
{
aopPut (AOP (IC_RESULT (ic)),
aopGet (AOP (IC_RIGHT (ic)), GPTRSIZE - 1, FALSE, FALSE),
- GPTRSIZE - 1);
+ GPTRSIZE - 1,
+ isOperandVolatile (IC_RESULT (ic), FALSE));
}
if (opIsGptr (IC_RESULT (ic)) &&
{
char buffer[5];
sprintf (buffer, "#%d", pointerCode (getSpec (operandType (IC_LEFT (ic)))));
- aopPut (AOP (IC_RESULT (ic)), buffer, GPTRSIZE - 1);
+ aopPut (AOP (IC_RESULT (ic)), buffer, GPTRSIZE - 1, isOperandVolatile (IC_RESULT (ic), FALSE));
}
}
#endif
genPlus (iCode * ic)
{
int size, offset = 0;
+ char *add;
+ asmop *leftOp, *rightOp;
/* special cases :- */
- D(emitcode (";", "genPlus"));
+ D(emitcode ("; genPlus",""));
aopOp (IC_LEFT (ic), ic, FALSE);
aopOp (IC_RIGHT (ic), ic, FALSE);
{
MOVA (aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE));
emitcode ("addc", "a,#00");
- aopPut (AOP (IC_RESULT (ic)), "a", offset++);
+ aopPut (AOP (IC_RESULT (ic)), "a", offset++, isOperandVolatile (IC_RESULT (ic), FALSE));
}
}
goto release;
size = getDataSize (IC_RESULT (ic));
+ leftOp = AOP(IC_LEFT(ic));
+ rightOp = AOP(IC_RIGHT(ic));
+ add = "add";
+
while (size--)
{
- if (AOP_TYPE (IC_LEFT (ic)) == AOP_ACC)
+ if (aopGetUsesAcc (leftOp, offset) && aopGetUsesAcc (rightOp, offset))
{
- MOVA (aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE));
- if (offset == 0)
- emitcode ("add", "a,%s",
- aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE));
- else
- emitcode ("addc", "a,%s",
- aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE));
+ emitcode("mov", "b,a");
+ MOVA (aopGet (leftOp, offset, FALSE, TRUE));
+ emitcode("xch", "a,b");
+ MOVA (aopGet (rightOp, offset, FALSE, TRUE));
+ emitcode (add, "a,b");
+ }
+ else if (aopGetUsesAcc (leftOp, offset))
+ {
+ MOVA (aopGet (leftOp, offset, FALSE, TRUE));
+ emitcode (add, "a,%s", aopGet (rightOp, offset, FALSE, TRUE));
}
else
{
- MOVA (aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE));
- if (offset == 0)
- emitcode ("add", "a,%s",
- aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE));
- else
- emitcode ("addc", "a,%s",
- aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE));
+ MOVA (aopGet (rightOp, offset, FALSE, TRUE));
+ emitcode (add, "a,%s", aopGet (leftOp, offset, FALSE, TRUE));
}
- aopPut (AOP (IC_RESULT (ic)), "a", offset++);
+ aopPut (AOP (IC_RESULT (ic)), "a", offset++, isOperandVolatile (IC_RESULT (ic), FALSE));
+ add = "addc"; /* further adds must propagate carry */
}
adjustArithmeticResult (ic);
if ((icount = (unsigned int) floatFromVal (AOP (IC_RIGHT (ic))->aopu.aop_lit)) > 4)
return FALSE;
- D(emitcode (";", "genMinusDec"));
+ D(emitcode ("; genMinusDec",""));
- /* if decrement 16 bits in register */
- if (AOP_TYPE(IC_LEFT(ic)) == AOP_REG &&
+ /* if decrement >=16 bits in register or direct space */
+ if ((AOP_TYPE(IC_LEFT(ic)) == AOP_REG || AOP_TYPE(IC_LEFT(ic)) == AOP_DIR) &&
sameRegs (AOP (IC_LEFT (ic)), AOP (IC_RESULT (ic))) &&
(size > 1) &&
(icount == 1))
emitcode ("rlc", "a");
emitcode ("subb", "a,acc");
while (size--)
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
}
else
while (size--)
- aopPut (AOP (result), zero, offset++);
+ aopPut (AOP (result), zero, offset++, isOperandVolatile (result, FALSE));
}
}
{
symbol *lbl = newiTempLabel (NULL);
- D(emitcode (";", "genMinusBits"));
+ D(emitcode ("; genMinusBits",""));
if (AOP_TYPE (IC_RESULT (ic)) == AOP_CRY)
{
emitcode ("jnb", "%s,%05d$", AOP (IC_LEFT (ic))->aopu.aop_dir, (lbl->key + 100));
emitcode ("inc", "a");
emitcode ("", "%05d$:", (lbl->key + 100));
- aopPut (AOP (IC_RESULT (ic)), "a", 0);
+ aopPut (AOP (IC_RESULT (ic)), "a", 0, isOperandVolatile (IC_RESULT (ic), FALSE));
addSign (IC_RESULT (ic), MSB16, SPEC_USIGN (getSpec (operandType (IC_RESULT (ic)))));
}
}
genMinus (iCode * ic)
{
int size, offset = 0;
- unsigned long lit = 0L;
- D(emitcode (";", "genMinus"));
+ D(emitcode ("; genMinus",""));
aopOp (IC_LEFT (ic), ic, FALSE);
aopOp (IC_RIGHT (ic), ic, FALSE);
size = getDataSize (IC_RESULT (ic));
- if (AOP_TYPE (IC_RIGHT (ic)) != AOP_LIT)
- {
- CLRC;
- }
- else
+ /* if literal, add a,#-lit, else normal subb */
+ if (AOP_TYPE (IC_RIGHT (ic)) == AOP_LIT)
{
+ unsigned long lit = 0L;
+
lit = (unsigned long) floatFromVal (AOP (IC_RIGHT (ic))->aopu.aop_lit);
lit = -(long) lit;
- }
- /* if literal, add a,#-lit, else normal subb */
- while (size--)
- {
- MOVA (aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE));
- if (AOP_TYPE (IC_RIGHT (ic)) != AOP_LIT)
- emitcode ("subb", "a,%s",
- aopGet (AOP (IC_RIGHT (ic)), offset, FALSE, FALSE));
- else
+ while (size--)
{
+ MOVA (aopGet (AOP (IC_LEFT (ic)), offset, FALSE, FALSE));
/* first add without previous c */
if (!offset) {
- if (!size && lit==-1) {
+ if (!size && lit== (unsigned long) -1) {
emitcode ("dec", "a");
} else {
- emitcode ("add", "a,#0x%02x",
+ emitcode ("add", "a,#0x%02x",
(unsigned int) (lit & 0x0FFL));
}
} else {
emitcode ("addc", "a,#0x%02x",
(unsigned int) ((lit >> (offset * 8)) & 0x0FFL));
}
+ aopPut (AOP (IC_RESULT (ic)), "a", offset++, isOperandVolatile (IC_RESULT (ic), FALSE));
}
- aopPut (AOP (IC_RESULT (ic)), "a", offset++);
}
+ else
+ {
+ asmop *leftOp, *rightOp;
+
+ leftOp = AOP(IC_LEFT(ic));
+ rightOp = AOP(IC_RIGHT(ic));
+ while (size--)
+ {
+ if (aopGetUsesAcc(rightOp, offset)) {
+ wassertl(!aopGetUsesAcc(leftOp, offset), "accumulator clash");
+ MOVA (aopGet(rightOp, offset, FALSE, TRUE));
+ if (offset == 0) {
+ emitcode( "setb", "c");
+ }
+ emitcode("subb", "a,%s", aopGet(leftOp, offset, FALSE, TRUE));
+ emitcode("cpl", "a");
+ } else {
+ MOVA (aopGet (leftOp, offset, FALSE, FALSE));
+ if (offset == 0)
+ CLRC;
+ emitcode ("subb", "a,%s",
+ aopGet(rightOp, offset, FALSE, TRUE));
+ }
+
+ aopPut (AOP (IC_RESULT (ic)), "a", offset++, isOperandVolatile (IC_RESULT (ic), FALSE));
+ }
+ }
+
+
adjustArithmeticResult (ic);
release:
operand * right,
operand * result)
{
- D(emitcode (";", "genMultbits"));
+ D(emitcode ("; genMultbits",""));
emitcode ("mov", "c,%s", AOP (left)->aopu.aop_dir);
emitcode ("anl", "c,%s", AOP (right)->aopu.aop_dir);
symbol *lbl;
int size=AOP_SIZE(result);
- D(emitcode (";", "genMultOneByte"));
+ D(emitcode ("; genMultOneByte",""));
if (size<1 || size>2) {
// this should never happen
- fprintf (stderr, "size!=1||2 (%d) in %s at line:%d \n",
+ fprintf (stderr, "size!=1||2 (%d) in %s at line:%d \n",
AOP_SIZE(result), __FILE__, lineno);
exit (1);
}
SPEC_USIGN(operandType(right)))) {
// just an unsigned 8*8=8/16 multiply
//emitcode (";","unsigned");
+ // TODO: check for accumulator clash between left & right aops?
emitcode ("mov", "b,%s", aopGet (AOP (right), 0, FALSE, FALSE));
MOVA (aopGet (AOP (left), 0, FALSE, FALSE));
emitcode ("mul", "ab");
- aopPut (AOP (result), "a", 0);
+ aopPut (AOP (result), "a", 0, isOperandVolatile (result, FALSE));
if (size==2) {
- aopPut (AOP (result), "b", 1);
+ aopPut (AOP (result), "b", 1, isOperandVolatile (result, FALSE));
}
return;
}
/* if literal */
if (AOP_TYPE(right)==AOP_LIT) {
- signed char val=floatFromVal (AOP (right)->aopu.aop_lit);
+ signed char val=(signed char)floatFromVal (AOP (right)->aopu.aop_lit);
/* AND literal negative */
if (val < 0) {
emitcode ("cpl", "F0"); // complement sign flag
}
emitcode ("", "%05d$:", lbl->key+100);
- aopPut (AOP (result), "a", 0);
+ aopPut (AOP (result), "a", 0, isOperandVolatile (result, FALSE));
if (size==2) {
- aopPut (AOP (result), "b", 1);
+ aopPut (AOP (result), "b", 1, isOperandVolatile (result, FALSE));
}
}
operand *right = IC_RIGHT (ic);
operand *result = IC_RESULT (ic);
- D(emitcode (";", "genMult"));
+ D(emitcode ("; genMult",""));
/* assign the amsops */
aopOp (left, ic, FALSE);
char *l;
- D(emitcode (";", "genDivbits"));
+ D(emitcode ("; genDivbits",""));
/* the result must be bit */
emitcode ("mov", "b,%s", aopGet (AOP (right), 0, FALSE, FALSE));
emitcode ("div", "ab");
emitcode ("rrc", "a");
- aopPut (AOP (result), "c", 0);
+ aopPut (AOP (result), "c", 0, isOperandVolatile (result, FALSE));
}
/*-----------------------------------------------------------------*/
symbol *lbl;
int size, offset;
- D(emitcode (";", "genDivOneByte"));
+ D(emitcode ("; genDivOneByte",""));
size = AOP_SIZE (result) - 1;
offset = 1;
l = aopGet (AOP (left), 0, FALSE, FALSE);
MOVA (l);
emitcode ("div", "ab");
- aopPut (AOP (result), "a", 0);
+ aopPut (AOP (result), "a", 0, isOperandVolatile (result, FALSE));
while (size--)
- aopPut (AOP (result), zero, offset++);
+ aopPut (AOP (result), zero, offset++, isOperandVolatile (result, FALSE));
return;
}
emitcode ("", "%05d$:", (lbl->key + 100));
/* now we are done */
- aopPut (AOP (result), "b", 0);
+ aopPut (AOP (result), "b", 0, isOperandVolatile (result, FALSE));
if (size > 0)
{
emitcode ("mov", "c,b.7");
emitcode ("subb", "a,acc");
}
while (size--)
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
}
operand *right = IC_RIGHT (ic);
operand *result = IC_RESULT (ic);
- D(emitcode (";", "genDiv"));
+ D(emitcode ("; genDiv",""));
/* assign the amsops */
aopOp (left, ic, FALSE);
char *l;
- D(emitcode (";", "genModbits"));
+ D(emitcode ("; genModbits",""));
/* the result must be bit */
emitcode ("mov", "b,%s", aopGet (AOP (right), 0, FALSE, FALSE));
emitcode ("div", "ab");
emitcode ("mov", "a,b");
emitcode ("rrc", "a");
- aopPut (AOP (result), "c", 0);
+ aopPut (AOP (result), "c", 0, isOperandVolatile (result, FALSE));
}
/*-----------------------------------------------------------------*/
char *l;
symbol *lbl;
- D(emitcode (";", "genModOneByte"));
+ D(emitcode ("; genModOneByte",""));
/* signed or unsigned */
if (SPEC_USIGN (opetype))
l = aopGet (AOP (left), 0, FALSE, FALSE);
MOVA (l);
emitcode ("div", "ab");
- aopPut (AOP (result), "b", 0);
+ aopPut (AOP (result), "b", 0, isOperandVolatile (result, FALSE));
return;
}
emitcode ("", "%05d$:", (lbl->key + 100));
/* now we are done */
- aopPut (AOP (result), "b", 0);
+ aopPut (AOP (result), "b", 0, isOperandVolatile (result, FALSE));
}
operand *right = IC_RIGHT (ic);
operand *result = IC_RESULT (ic);
- D(emitcode (";", "genMod"));
+ D(emitcode ("; genMod",""));
/* assign the amsops */
aopOp (left, ic, FALSE);
symbol *tlbl = newiTempLabel (NULL);
char *inst;
- D(emitcode (";", "genIfxJump"));
+ D(emitcode ("; genIfxJump",""));
/* if true label then we jump if condition
supplied is true */
{
int size, offset = 0;
unsigned long lit = 0L;
+ bool rightInB;
- D(emitcode (";", "genCmp"));
+ D(emitcode ("; genCmp",""));
/* if left & right are bit variables */
if (AOP_TYPE (left) == AOP_CRY &&
AOP_TYPE (right) == AOP_CRY)
{
emitcode ("mov", "c,%s", AOP (right)->aopu.aop_dir);
- emitcode ("anl", "c,/%s", AOP (left)->aopu.aop_dir);
+ emitcode ("anl", "c,%s", AOP (left)->aopu.aop_dir);
}
else
{
CLRC;
while (size--)
{
+ rightInB = aopGetUsesAcc(AOP (right), offset);
+ if (rightInB)
+ emitcode ("mov", "b,%s", aopGet (AOP (right), offset, FALSE, FALSE));
MOVA (aopGet (AOP (left), offset, FALSE, FALSE));
if (sign && size == 0)
{
}
else
{
- emitcode ("mov", "b,%s", aopGet (AOP (right), offset++, FALSE, FALSE));
+ if (!rightInB)
+ emitcode ("mov", "b,%s", aopGet (AOP (right), offset, FALSE, FALSE));
emitcode ("xrl", "b,#0x80");
emitcode ("subb", "a,b");
}
}
else
- emitcode ("subb", "a,%s", aopGet (AOP (right), offset++, FALSE, FALSE));
+ {
+ if (rightInB)
+ emitcode ("subb", "a,b");
+ else
+ emitcode ("subb", "a,%s", aopGet (AOP (right), offset, FALSE, FALSE));
+ }
+ offset++;
}
}
}
sym_link *letype, *retype;
int sign;
- D(emitcode (";", "genCmpGt"));
+ D(emitcode ("; genCmpGt",""));
left = IC_LEFT (ic);
right = IC_RIGHT (ic);
sym_link *letype, *retype;
int sign;
- D(emitcode (";", "genCmpLt"));
+ D(emitcode ("; genCmpLt",""));
left = IC_LEFT (ic);
right = IC_RIGHT (ic);
/* if the right side is a literal then anything goes */
if (AOP_TYPE (right) == AOP_LIT &&
- AOP_TYPE (left) != AOP_DIR)
+ AOP_TYPE (left) != AOP_DIR &&
+ AOP_TYPE (left) != AOP_IMMD)
{
while (size--)
{
if the left is a pointer register & right is not */
else if (AOP_TYPE (right) == AOP_REG ||
AOP_TYPE (right) == AOP_DIR ||
+ AOP_TYPE (right) == AOP_LIT ||
(AOP_TYPE (left) == AOP_DIR && AOP_TYPE (right) == AOP_LIT) ||
(IS_AOP_PREG (left) && !IS_AOP_PREG (right)))
{
{
operand *left, *right, *result;
- D(emitcode (";", "genCmpEq"));
+ D(emitcode ("; genCmpEq",""));
aopOp ((left = IC_LEFT (ic)), ic, FALSE);
aopOp ((right = IC_RIGHT (ic)), ic, FALSE);
gencjne (left, right, newiTempLabel (NULL));
if (AOP_TYPE (result) == AOP_CRY && AOP_SIZE (result))
{
- aopPut (AOP (result), "a", 0);
+ aopPut (AOP (result), "a", 0, isOperandVolatile (result, FALSE));
goto release;
}
if (ifx)
operand *left, *right, *result;
symbol *tlbl;
- D(emitcode (";", "genAndOp"));
+ D(emitcode ("; genAndOp",""));
/* note here that && operations that are in an
if statement are taken away by backPatchLabels
operand *left, *right, *result;
symbol *tlbl;
- D(emitcode (";", "genOrOp"));
+ D(emitcode ("; genOrOp",""));
/* note here that || operations that are in an
if statement are taken away by backPatchLabels
int bytelit = 0;
char buffer[10];
- D(emitcode (";", "genAnd"));
+ D(emitcode ("; genAnd",""));
aopOp ((left = IC_LEFT (ic)), ic, FALSE);
aopOp ((right = IC_RIGHT (ic)), ic, FALSE);
if ((bytelit = (int) ((lit >> (offset * 8)) & 0x0FFL)) == 0x0FF)
continue;
else if (bytelit == 0)
- aopPut (AOP (result), zero, offset);
+ {
+ aopPut (AOP (result), zero, offset, isOperandVolatile (result, FALSE));
+ }
else if (IS_AOP_PREG (result))
{
MOVA (aopGet (AOP (right), offset, FALSE, FALSE));
emitcode ("anl", "a,%s", aopGet (AOP (left), offset, FALSE, TRUE));
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
else
emitcode ("anl", "%s,%s",
if (IS_AOP_PREG (result))
{
emitcode ("anl", "a,%s", aopGet (AOP (left), offset, FALSE, TRUE));
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
else
{
aopPut (AOP (result),
aopGet (AOP (left), offset, FALSE, FALSE),
- offset);
+ offset,
+ isOperandVolatile (result, FALSE));
continue;
}
else if (bytelit == 0)
{
- aopPut (AOP (result), zero, offset);
+ /* dummy read of volatile operand */
+ if (isOperandVolatile (left, FALSE))
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE));
+ aopPut (AOP (result), zero, offset, isOperandVolatile (result, FALSE));
continue;
}
}
emitcode ("anl", "a,%s",
aopGet (AOP (left), offset, FALSE, FALSE));
}
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
}
}
int size, offset = 0;
unsigned long lit = 0L;
- D(emitcode (";", "genOr"));
+ D(emitcode ("; genOr",""));
aopOp ((left = IC_LEFT (ic)), ic, FALSE);
aopOp ((right = IC_RIGHT (ic)), ic, FALSE);
if (AOP_TYPE (right) == AOP_LIT)
{
if (((lit >> (offset * 8)) & 0x0FFL) == 0x00L)
- continue;
+ {
+ /* dummy read of volatile operand */
+ if (isOperandVolatile (left, FALSE))
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE));
+ else
+ continue;
+ }
else if (IS_AOP_PREG (left))
{
MOVA (aopGet (AOP (right), offset, FALSE, FALSE));
emitcode ("orl", "a,%s", aopGet (AOP (left), offset, FALSE, TRUE));
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
else
emitcode ("orl", "%s,%s",
if (IS_AOP_PREG (left))
{
emitcode ("orl", "a,%s", aopGet (AOP (left), offset, FALSE, TRUE));
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
else
emitcode ("orl", "%s,a",
{
aopPut (AOP (result),
aopGet (AOP (left), offset, FALSE, FALSE),
- offset);
+ offset,
+ isOperandVolatile (result, FALSE));
continue;
}
}
emitcode ("orl", "a,%s",
aopGet (AOP (left), offset, FALSE, FALSE));
}
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
}
int size, offset = 0;
unsigned long lit = 0L;
- D(emitcode (";", "genXor"));
+ D(emitcode ("; genXor",""));
aopOp ((left = IC_LEFT (ic)), ic, FALSE);
aopOp ((right = IC_RIGHT (ic)), ic, FALSE);
{
MOVA (aopGet (AOP (right), offset, FALSE, FALSE));
emitcode ("xrl", "a,%s", aopGet (AOP (left), offset, FALSE, TRUE));
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
else
emitcode ("xrl", "%s,%s",
if (IS_AOP_PREG (left))
{
emitcode ("xrl", "a,%s", aopGet (AOP (left), offset, FALSE, TRUE));
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
else
emitcode ("xrl", "%s,a",
{
aopPut (AOP (result),
aopGet (AOP (left), offset, FALSE, FALSE),
- offset);
+ offset,
+ isOperandVolatile (result, FALSE));
continue;
}
}
emitcode ("xrl", "a,%s",
aopGet (AOP (left), offset, FALSE, TRUE));
}
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
}
{
char *buffer, *bp, *bp1;
- D(emitcode (";", "genInline"));
+ D(emitcode ("; genInline",""));
_G.inLine += (!options.asmpeep);
int size, offset = 0;
char *l;
- D(emitcode (";", "genRRC"));
+ D(emitcode ("; genRRC",""));
/* rotate right with carry */
left = IC_LEFT (ic);
MOVA (l);
emitcode ("rrc", "a");
if (AOP_SIZE (result) > 1)
- aopPut (AOP (result), "a", offset--);
+ aopPut (AOP (result), "a", offset--, isOperandVolatile (result, FALSE));
}
/* now we need to put the carry into the
highest order byte of the result */
}
emitcode ("mov", "acc.7,c");
release:
- aopPut (AOP (result), "a", AOP_SIZE (result) - 1);
+ aopPut (AOP (result), "a", AOP_SIZE (result) - 1, isOperandVolatile (result, FALSE));
freeAsmop (left, NULL, ic, TRUE);
freeAsmop (result, NULL, ic, TRUE);
}
int size, offset = 0;
char *l;
- D(emitcode (";", "genRLC"));
+ D(emitcode ("; genRLC",""));
/* rotate right with carry */
left = IC_LEFT (ic);
}
emitcode ("add", "a,acc");
if (AOP_SIZE (result) > 1)
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
while (size--)
{
l = aopGet (AOP (left), offset, FALSE, FALSE);
MOVA (l);
emitcode ("rlc", "a");
if (AOP_SIZE (result) > 1)
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
}
}
/* now we need to put the carry into the
}
emitcode ("mov", "acc.0,c");
release:
- aopPut (AOP (result), "a", 0);
+ aopPut (AOP (result), "a", 0, isOperandVolatile (result, FALSE));
freeAsmop (left, NULL, ic, TRUE);
freeAsmop (result, NULL, ic, TRUE);
}
{
operand *left, *result;
- D(emitcode (";", "genGetHbit"));
+ D(emitcode ("; genGetHbit",""));
left = IC_LEFT (ic);
result = IC_RESULT (ic);
AccSRsh (shCount);
else
AccRsh (shCount);
- aopPut (AOP (result), "a", offr);
+ aopPut (AOP (result), "a", offr, isOperandVolatile (result, FALSE));
}
/*-----------------------------------------------------------------*/
MOVA (l);
/* shift left accumulator */
AccLsh (shCount);
- aopPut (AOP (result), "a", offr);
+ aopPut (AOP (result), "a", offr, isOperandVolatile (result, FALSE));
}
/*-----------------------------------------------------------------*/
if (*l == '@' && (IS_AOP_PREG (result)))
{
emitcode ("mov", "a,%s", l);
- aopPut (AOP (result), "a", offr);
+ aopPut (AOP (result), "a", offr, isOperandVolatile (result, FALSE));
}
else
{
if (!sign)
- aopPut (AOP (result), l, offr);
+ aopPut (AOP (result), l, offr, isOperandVolatile (result, FALSE));
else
{
/* MSB sign in acc.7 ! */
if (getDataSize (left) == offl + 1)
{
emitcode ("mov", "a,%s", l);
- aopPut (AOP (result), "a", offr);
+ aopPut (AOP (result), "a", offr, isOperandVolatile (result, FALSE));
}
}
}
emitcode ("mov", "c,acc.7");
AccAXLrl1 (x); // ABBBBBBC:CDDDDDDA
+ emitcode ("mov", "c,acc.7");
AccAXLrl1 (x); // BBBBBBCC:DDDDDDAA
emitcode ("xch", "a,%s", x); // DDDDDDAA:BBBBBBCC
emitcode ("mov", "c,acc.7");
AccAXLrl1 (x); // ABBBBBBC:CDDDDDDA
+ emitcode ("mov", "c,acc.7");
AccAXLrl1 (x); // BBBBBBCC:DDDDDDAA
emitcode ("xch", "a,%s", x); // DDDDDDAA:BBBBBBCC
}
/* ax << shCount (x = lsb(result)) */
AccAXLsh (aopGet (AOP (result), offr, FALSE, FALSE), shCount);
- aopPut (AOP (result), "a", offr + MSB16);
+ aopPut (AOP (result), "a", offr + MSB16, isOperandVolatile (result, FALSE));
}
else
AccAXRsh (aopGet (AOP (result), offr, FALSE, FALSE), shCount);
if (getDataSize (result) > 1)
- aopPut (AOP (result), "a", offr + MSB16);
+ aopPut (AOP (result), "a", offr + MSB16, isOperandVolatile (result, FALSE));
}
/*-----------------------------------------------------------------*/
/* or with result */
emitcode ("orl", "a,%s", aopGet (AOP (result), offr, FALSE, FALSE));
/* back to result */
- aopPut (AOP (result), "a", offr);
+ aopPut (AOP (result), "a", offr, isOperandVolatile (result, FALSE));
}
/*-----------------------------------------------------------------*/
/* or with result */
emitcode ("orl", "a,%s", aopGet (AOP (result), offr, FALSE, FALSE));
/* back to result */
- aopPut (AOP (result), "a", offr);
+ aopPut (AOP (result), "a", offr, isOperandVolatile (result, FALSE));
}
/*-----------------------------------------------------------------*/
static void
genlshOne (operand * result, operand * left, int shCount)
{
- D(emitcode (";", "genlshOne"));
+ D(emitcode ("; genlshOne",""));
shiftL1Left2Result (left, LSB, result, LSB, shCount);
}
{
int size;
- D(emitcode (";", "genlshTwo"));
+ D(emitcode ("; genlshTwo",""));
size = getDataSize (result);
else
movLeft2Result (left, LSB, result, MSB16, 0);
}
- aopPut (AOP (result), zero, LSB);
+ aopPut (AOP (result), zero, LSB, isOperandVolatile (result, FALSE));
}
/* 1 <= shCount <= 7 */
emitcode ("xch", "a,%s",
aopGet (AOP (left), LSB + offr, FALSE, FALSE));
else
- aopPut (AOP (result), "a", LSB + offr);
+ aopPut (AOP (result), "a", LSB + offr, isOperandVolatile (result, FALSE));
}
if (size >= MSB16 + offr)
emitcode ("xch", "a,%s",
aopGet (AOP (left), MSB16 + offr, FALSE, FALSE));
else
- aopPut (AOP (result), "a", MSB16 + offr);
+ aopPut (AOP (result), "a", MSB16 + offr, isOperandVolatile (result, FALSE));
}
if (size >= MSB24 + offr)
emitcode ("xch", "a,%s",
aopGet (AOP (left), MSB24 + offr, FALSE, FALSE));
else
- aopPut (AOP (result), "a", MSB24 + offr);
+ aopPut (AOP (result), "a", MSB24 + offr, isOperandVolatile (result, FALSE));
}
if (size > MSB32 + offr)
MOVA (l);
}
emitcode ("rlc", "a");
- aopPut (AOP (result), "a", MSB32 + offr);
+ aopPut (AOP (result), "a", MSB32 + offr, isOperandVolatile (result, FALSE));
}
if (offr != LSB)
- aopPut (AOP (result), zero, LSB);
+ aopPut (AOP (result), zero, LSB, isOperandVolatile (result, FALSE));
}
/*-----------------------------------------------------------------*/
{
int size;
- D(emitcode (";", "genlshFour"));
+ D(emitcode ("; genlshFour",""));
size = AOP_SIZE (result);
shiftL1Left2Result (left, LSB, result, MSB32, shCount);
else
movLeft2Result (left, LSB, result, MSB32, 0);
- aopPut (AOP (result), zero, LSB);
- aopPut (AOP (result), zero, MSB16);
- aopPut (AOP (result), zero, MSB24);
+ aopPut (AOP (result), zero, LSB, isOperandVolatile (result, FALSE));
+ aopPut (AOP (result), zero, MSB16, isOperandVolatile (result, FALSE));
+ aopPut (AOP (result), zero, MSB24, isOperandVolatile (result, FALSE));
return;
}
movLeft2Result (left, MSB16, result, MSB32, 0);
movLeft2Result (left, LSB, result, MSB24, 0);
}
- aopPut (AOP (result), zero, MSB16);
- aopPut (AOP (result), zero, LSB);
+ aopPut (AOP (result), zero, MSB16, isOperandVolatile (result, FALSE));
+ aopPut (AOP (result), zero, LSB, isOperandVolatile (result, FALSE));
return;
}
movLeft2Result (left, MSB24, result, MSB32, 0);
movLeft2Result (left, MSB16, result, MSB24, 0);
movLeft2Result (left, LSB, result, MSB16, 0);
- aopPut (AOP (result), zero, LSB);
+ aopPut (AOP (result), zero, LSB, isOperandVolatile (result, FALSE));
}
else if (shCount == 1)
shiftLLong (left, result, MSB16);
shiftL2Left2Result (left, MSB16, result, MSB24, shCount);
shiftL1Left2Result (left, LSB, result, MSB16, shCount);
shiftRLeftOrResult (left, LSB, result, MSB24, 8 - shCount);
- aopPut (AOP (result), zero, LSB);
+ aopPut (AOP (result), zero, LSB, isOperandVolatile (result, FALSE));
}
}
}
int shCount = (int) floatFromVal (AOP (right)->aopu.aop_lit);
int size;
- D(emitcode (";", "genLeftShiftLiteral"));
+ D(emitcode ("; genLeftShiftLiteral",""));
freeAsmop (right, NULL, ic, TRUE);
else if (shCount >= (size * 8))
while (size--)
- aopPut (AOP (result), zero, size);
+ aopPut (AOP (result), zero, size, isOperandVolatile (result, FALSE));
else
{
switch (size)
genlshFour (result, left, shCount);
break;
default:
- fprintf(stderr, "*** ack! mystery literal shift!\n");
+ werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
+ "*** ack! mystery literal shift!\n");
break;
}
}
char *l;
symbol *tlbl, *tlbl1;
- D(emitcode (";", "genLeftShift"));
+ D(emitcode ("; genLeftShift",""));
right = IC_RIGHT (ic);
left = IC_LEFT (ic);
{
emitcode ("mov", "a,%s", l);
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
else
- aopPut (AOP (result), l, offset);
+ aopPut (AOP (result), l, offset, isOperandVolatile (result, FALSE));
offset++;
}
}
emitcode ("add", "a,acc");
emitcode ("", "%05d$:", tlbl1->key + 100);
emitcode ("djnz", "b,%05d$", tlbl->key + 100);
- aopPut (AOP (result), "a", 0);
+ aopPut (AOP (result), "a", 0, isOperandVolatile (result, FALSE));
goto release;
}
l = aopGet (AOP (result), offset, FALSE, FALSE);
MOVA (l);
emitcode ("add", "a,acc");
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
while (--size)
{
l = aopGet (AOP (result), offset, FALSE, FALSE);
MOVA (l);
emitcode ("rlc", "a");
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
}
reAdjustPreg (AOP (result));
genrshOne (operand * result, operand * left,
int shCount, int sign)
{
- D(emitcode (";", "genrshOne"));
+ D(emitcode ("; genrshOne",""));
shiftR1Left2Result (left, LSB, result, LSB, shCount, sign);
}
genrshTwo (operand * result, operand * left,
int shCount, int sign)
{
- D(emitcode (";", "genrshTwo"));
+ D(emitcode ("; genrshTwo",""));
/* if shCount >= 8 */
if (shCount >= 8)
if (sign) {
emitcode ("rlc", "a");
emitcode ("subb", "a,acc");
- emitcode ("xch", "a,%s", aopGet(AOP(left), MSB32, FALSE, FALSE));
+ if (isSameRegs)
+ emitcode ("xch", "a,%s", aopGet(AOP(left), MSB32, FALSE, FALSE));
+ else {
+ aopPut (AOP (result), "a", MSB32, isOperandVolatile (result, FALSE));
+ MOVA (aopGet (AOP (left), MSB32, FALSE, FALSE));
+ }
} else {
- aopPut (AOP(result), zero, MSB32);
+ aopPut (AOP(result), zero, MSB32, isOperandVolatile (result, FALSE));
}
}
if (isSameRegs && offl==MSB16) {
emitcode ("xch", "a,%s",aopGet (AOP (left), MSB24, FALSE, FALSE));
} else {
- aopPut (AOP (result), "a", MSB32);
+ aopPut (AOP (result), "a", MSB32-offl, isOperandVolatile (result, FALSE));
MOVA (aopGet (AOP (left), MSB24, FALSE, FALSE));
}
if (isSameRegs && offl==1) {
emitcode ("xch", "a,%s",aopGet (AOP (left), MSB16, FALSE, FALSE));
} else {
- aopPut (AOP (result), "a", MSB24);
+ aopPut (AOP (result), "a", MSB24-offl, isOperandVolatile (result, FALSE));
MOVA (aopGet (AOP (left), MSB16, FALSE, FALSE));
}
emitcode ("rrc", "a");
- aopPut (AOP (result), "a", MSB16 - offl);
+ aopPut (AOP (result), "a", MSB16 - offl, isOperandVolatile (result, FALSE));
if (offl == LSB)
{
MOVA (aopGet (AOP (left), LSB, FALSE, FALSE));
emitcode ("rrc", "a");
- aopPut (AOP (result), "a", LSB);
+ aopPut (AOP (result), "a", LSB, isOperandVolatile (result, FALSE));
}
}
genrshFour (operand * result, operand * left,
int shCount, int sign)
{
- D(emitcode (";", "genrshFour"));
+ D(emitcode ("; genrshFour",""));
/* if shifting more that 3 bytes */
if (shCount >= 24)
int shCount = (int) floatFromVal (AOP (right)->aopu.aop_lit);
int size;
- D(emitcode (";", "genRightShiftLiteral"));
+ D(emitcode ("; genRightShiftLiteral",""));
freeAsmop (right, NULL, ic, TRUE);
else if (shCount >= (size * 8))
{
- if (sign)
+ if (sign) {
/* get sign in acc.7 */
MOVA (aopGet (AOP (left), size - 1, FALSE, FALSE));
+ }
addSign (result, LSB, sign);
}
else
default:
break;
}
-
- freeAsmop (left, NULL, ic, TRUE);
- freeAsmop (result, NULL, ic, TRUE);
}
+ freeAsmop (left, NULL, ic, TRUE);
+ freeAsmop (result, NULL, ic, TRUE);
}
/*-----------------------------------------------------------------*/
char *l;
symbol *tlbl, *tlbl1;
- D(emitcode (";", "genSignedRightShift"));
+ D(emitcode ("; genSignedRightShift",""));
/* we do it the hard way put the shift count in b
and loop thru preserving the sign */
{
emitcode ("mov", "a,%s", l);
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
else
- aopPut (AOP (result), l, offset);
+ aopPut (AOP (result), l, offset, isOperandVolatile (result, FALSE));
offset++;
}
}
emitcode ("rrc", "a");
emitcode ("", "%05d$:", tlbl1->key + 100);
emitcode ("djnz", "b,%05d$", tlbl->key + 100);
- aopPut (AOP (result), "a", 0);
+ aopPut (AOP (result), "a", 0, isOperandVolatile (result, FALSE));
goto release;
}
l = aopGet (AOP (result), offset, FALSE, FALSE);
MOVA (l);
emitcode ("rrc", "a");
- aopPut (AOP (result), "a", offset--);
+ aopPut (AOP (result), "a", offset--, isOperandVolatile (result, FALSE));
}
reAdjustPreg (AOP (result));
emitcode ("", "%05d$:", tlbl1->key + 100);
char *l;
symbol *tlbl, *tlbl1;
- D(emitcode (";", "genRightShift"));
+ D(emitcode ("; genRightShift",""));
/* if signed then we do it the hard way preserve the
sign bit moving it inwards */
{
emitcode ("mov", "a,%s", l);
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
else
- aopPut (AOP (result), l, offset);
+ aopPut (AOP (result), l, offset, isOperandVolatile (result, FALSE));
offset++;
}
}
emitcode ("rrc", "a");
emitcode ("", "%05d$:", tlbl1->key + 100);
emitcode ("djnz", "b,%05d$", tlbl->key + 100);
- aopPut (AOP (result), "a", 0);
+ aopPut (AOP (result), "a", 0, isOperandVolatile (result, FALSE));
goto release;
}
l = aopGet (AOP (result), offset, FALSE, FALSE);
MOVA (l);
emitcode ("rrc", "a");
- aopPut (AOP (result), "a", offset--);
+ aopPut (AOP (result), "a", offset--, isOperandVolatile (result, FALSE));
}
reAdjustPreg (AOP (result));
int offset = 0;
int rsize;
- D(emitcode (";", "genUnpackBits"));
+ D(emitcode ("; genUnpackBits",""));
etype = getSpec (operandType (result));
rsize = getSize (operandType (result));
emitcode ("anl", "a,#0x%02x",
((unsigned char) -1) >> (8 - SPEC_BLEN (etype)));
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
goto finish;
}
/* bit field did not fit in a byte */
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
while (1)
{
if (rlen < 8)
break;
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
}
{
// emitcode("anl","a,#0x%02x",((unsigned char)-1)>>(rlen));
AccLsh (8 - rlen);
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
}
finish:
{
rsize -= offset;
while (rsize--)
- aopPut (AOP (result), zero, offset++);
+ aopPut (AOP (result), zero, offset++, isOperandVolatile (result, FALSE));
}
return;
}
char buffer[256];
int size, offset = 0;
- D(emitcode (";", "genDataPointerGet"));
+ D(emitcode ("; genDataPointerGet",""));
aopOp (result, ic, TRUE);
sprintf (buffer, "(%s + %d)", l + 1, offset);
else
sprintf (buffer, "%s", l + 1);
- aopPut (AOP (result), buffer, offset++);
+ aopPut (AOP (result), buffer, offset++, isOperandVolatile (result, FALSE));
}
freeAsmop (left, NULL, ic, TRUE);
sym_link *ltype = operandType (left);
char buffer[80];
- D(emitcode (";", "genNearPointerGet"));
+ D(emitcode ("; genNearPointerGet",""));
rtype = operandType (result);
retype = getSpec (rtype);
{
emitcode ("mov", "a,@%s", rname);
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
}
else
{
sprintf (buffer, "@%s", rname);
- aopPut (AOP (result), buffer, offset);
+ aopPut (AOP (result), buffer, offset, isOperandVolatile (result, FALSE));
}
offset++;
if (size || pi)
if (aop) /* we had to allocate for this iCode */
{
if (pi) { /* post increment present */
- aopPut(AOP ( left ),rname,0);
+ aopPut(AOP ( left ),rname,0, isOperandVolatile (left, FALSE));
}
freeAsmop (NULL, aop, ic, TRUE);
}
char *rname;
sym_link *rtype, *retype;
- D(emitcode (";", "genPagedPointerGet"));
+ D(emitcode ("; genPagedPointerGet",""));
rtype = operandType (result);
retype = getSpec (rtype);
{
emitcode ("movx", "a,@%s", rname);
- aopPut (AOP (result), "a", offset);
+ aopPut (AOP (result), "a", offset, isOperandVolatile (result, FALSE));
offset++;
/* now some housekeeping stuff */
if (aop) /* we had to allocate for this iCode */
{
- if (pi) aopPut ( AOP (left), rname, 0);
+ if (pi) aopPut ( AOP (left), rname, 0, isOperandVolatile (left, FALSE));
freeAsmop (NULL, aop, ic, TRUE);
}
else
int size, offset;
sym_link *retype = getSpec (operandType (result));
- D(emitcode (";", "genFarPointerGet"));
+ D(emitcode ("; genFarPointerGet",""));
aopOp (left, ic, FALSE);
while (size--)
{
emitcode ("movx", "a,@dptr");
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
if (size || pi)
emitcode ("inc", "dptr");
}
}
if (pi && AOP_TYPE (left) != AOP_IMMD && AOP_TYPE (left) != AOP_STR) {
- aopPut ( AOP (left), "dpl", 0);
- aopPut ( AOP (left), "dph", 1);
+ aopPut ( AOP (left), "dpl", 0, isOperandVolatile (left, FALSE));
+ aopPut ( AOP (left), "dph", 1, isOperandVolatile (left, FALSE));
pi->generated = 1;
}
freeAsmop (left, NULL, ic, TRUE);
int size, offset;
sym_link *retype = getSpec (operandType (result));
- D(emitcode (";", "genCodePointerGet"));
+ D(emitcode ("; genCodePointerGet",""));
aopOp (left, ic, FALSE);
while (size--)
{
- emitcode ("clr", "a");
- emitcode ("movc", "a,@a+dptr");
- aopPut (AOP (result), "a", offset++);
- if (size || pi)
- emitcode ("inc", "dptr");
+ if (pi)
+ {
+ emitcode ("clr", "a");
+ emitcode ("movc", "a,@a+dptr");
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
+ emitcode ("inc", "dptr");
+ }
+ else
+ {
+ emitcode ("mov", "a,#0x%02x", offset);
+ emitcode ("movc", "a,@a+dptr");
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
+ }
}
}
if (pi && AOP_TYPE (left) != AOP_IMMD && AOP_TYPE (left) != AOP_STR) {
- aopPut ( AOP (left), "dpl", 0);
- aopPut ( AOP (left), "dph", 1);
+ aopPut ( AOP (left), "dpl", 0, isOperandVolatile (left, FALSE));
+ aopPut ( AOP (left), "dph", 1, isOperandVolatile (left, FALSE));
pi->generated = 1;
}
freeAsmop (left, NULL, ic, TRUE);
int size, offset;
sym_link *retype = getSpec (operandType (result));
- D(emitcode (";", "genGenPointerGet"));
+ D(emitcode ("; genGenPointerGet",""));
aopOp (left, ic, FALSE);
while (size--)
{
emitcode ("lcall", "__gptrget");
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
if (size || pi)
emitcode ("inc", "dptr");
}
}
if (pi && AOP_TYPE (left) != AOP_IMMD && AOP_TYPE (left) != AOP_STR) {
- aopPut ( AOP (left), "dpl", 0);
- aopPut ( AOP (left), "dph", 1);
- aopPut ( AOP (left), "b", 2);
+ aopPut ( AOP (left), "dpl", 0, isOperandVolatile (left, FALSE));
+ aopPut ( AOP (left), "dph", 1, isOperandVolatile (left, FALSE));
pi->generated = 1;
}
freeAsmop (left, NULL, ic, TRUE);
sym_link *type, *etype;
int p_type;
- D(emitcode (";", "genPointerGet"));
+ D(emitcode ("; genPointerGet",""));
left = IC_LEFT (ic);
result = IC_RESULT (ic);
if (p_type == GPOINTER && OP_SYMBOL(left)->remat &&
IS_CAST_ICODE(OP_SYMBOL(left)->rematiCode)) {
left = IC_RIGHT(OP_SYMBOL(left)->rematiCode);
- type = type = operandType (left);
+ type = operandType (left);
p_type = DCL_TYPE (type);
}
/* now that we have the pointer type we assign
int blen, bstr;
char *l;
- D(emitcode (";", "genPackBits"));
+ D(emitcode ("; genPackBits",""));
blen = SPEC_BLEN (etype);
bstr = SPEC_BSTR (etype);
int size, offset = 0;
char *l, buffer[256];
- D(emitcode (";", "genDataPointerSet"));
+ D(emitcode ("; genDataPointerSet",""));
aopOp (right, ic, FALSE);
sym_link *retype, *letype;
sym_link *ptype = operandType (result);
- D(emitcode (";", "genNearPointerSet"));
+ D(emitcode ("; genNearPointerSet",""));
retype = getSpec (operandType (right));
letype = getSpec (ptype);
/* now some housekeeping stuff */
if (aop) /* we had to allocate for this iCode */
{
- if (pi) aopPut (AOP (result),rname,0);
+ if (pi)
+ aopPut (AOP (result), rname, 0, isOperandVolatile (result, FALSE));
freeAsmop (NULL, aop, ic, TRUE);
}
else
char *rname, *l;
sym_link *retype, *letype;
- D(emitcode (";", "genPagedPointerSet"));
+ D(emitcode ("; genPagedPointerSet",""));
retype = getSpec (operandType (right));
letype = getSpec (operandType (result));
/* now some housekeeping stuff */
if (aop) /* we had to allocate for this iCode */
{
- if (pi) aopPut (AOP (result),rname,0);
+ if (pi)
+ aopPut (AOP (result), rname, 0, isOperandVolatile (result, FALSE));
freeAsmop (NULL, aop, ic, TRUE);
}
else
sym_link *retype = getSpec (operandType (right));
sym_link *letype = getSpec (operandType (result));
- D(emitcode (";", "genFarPointerSet"));
+ D(emitcode ("; genFarPointerSet",""));
aopOp (result, ic, FALSE);
}
}
if (pi && AOP_TYPE (result) != AOP_STR && AOP_TYPE (result) != AOP_IMMD) {
- aopPut (AOP(result),"dpl",0);
- aopPut (AOP(result),"dph",1);
+ aopPut (AOP(result), "dpl", 0, isOperandVolatile (result, FALSE));
+ aopPut (AOP(result), "dph", 1, isOperandVolatile (result, FALSE));
pi->generated=1;
}
freeAsmop (result, NULL, ic, TRUE);
sym_link *retype = getSpec (operandType (right));
sym_link *letype = getSpec (operandType (result));
- D(emitcode (";", "genGenPointerSet"));
+ D(emitcode ("; genGenPointerSet",""));
aopOp (result, ic, FALSE);
}
if (pi && AOP_TYPE (result) != AOP_STR && AOP_TYPE (result) != AOP_IMMD) {
- aopPut (AOP(result),"dpl",0);
- aopPut (AOP(result),"dph",1);
- aopPut (AOP(result),"b",2);
+ aopPut (AOP(result), "dpl", 0, isOperandVolatile (result, FALSE));
+ aopPut (AOP(result), "dph", 1, isOperandVolatile (result, FALSE));
pi->generated=1;
}
freeAsmop (result, NULL, ic, TRUE);
sym_link *type, *etype;
int p_type;
- D(emitcode (";", "genPointerSet"));
+ D(emitcode ("; genPointerSet",""));
right = IC_RIGHT (ic);
result = IC_RESULT (ic);
if (p_type == GPOINTER && OP_SYMBOL(result)->remat &&
IS_CAST_ICODE(OP_SYMBOL(result)->rematiCode)) {
result = IC_RIGHT(OP_SYMBOL(result)->rematiCode);
- type = type = operandType (result);
+ type = operandType (result);
p_type = DCL_TYPE (type);
}
/* now that we have the pointer type we assign
case GPOINTER:
genGenPointerSet (right, result, ic, pi);
break;
+
+ default:
+ werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
+ "genPointerSet: illegal pointer type");
}
}
operand *cond = IC_COND (ic);
int isbit = 0;
- D(emitcode (";", "genIfx"));
+ D(emitcode ("; genIfx",""));
aopOp (cond, ic, FALSE);
symbol *sym = OP_SYMBOL (IC_LEFT (ic));
int size, offset;
- D(emitcode (";", "genAddrOf"));
+ D(emitcode ("; genAddrOf",""));
aopOp (IC_RESULT (ic), ic, FALSE);
emitcode ("add", "a,#0x%02x", ((sym->stack < 0) ?
((char) (sym->stack - _G.nRegsSaved)) :
((char) sym->stack)) & 0xff);
- aopPut (AOP (IC_RESULT (ic)), "a", 0);
+ aopPut (AOP (IC_RESULT (ic)), "a", 0, isOperandVolatile (IC_RESULT (ic), FALSE));
}
else
{
/* we can just move _bp */
- aopPut (AOP (IC_RESULT (ic)), "_bp", 0);
+ aopPut (AOP (IC_RESULT (ic)), "_bp", 0, isOperandVolatile (IC_RESULT (ic), FALSE));
}
/* fill the result with zero */
size = AOP_SIZE (IC_RESULT (ic)) - 1;
offset = 1;
while (size--)
{
- aopPut (AOP (IC_RESULT (ic)), zero, offset++);
+ aopPut (AOP (IC_RESULT (ic)), zero, offset++, isOperandVolatile (IC_RESULT (ic), FALSE));
}
goto release;
offset * 8);
else
sprintf (s, "#%s", sym->rname);
- aopPut (AOP (IC_RESULT (ic)), s, offset++);
+ aopPut (AOP (IC_RESULT (ic)), s, offset++, isOperandVolatile (IC_RESULT (ic), FALSE));
}
release:
int offset = 0;
char *l;
- D(emitcode (";", "genFarFarAssign"));
+ D(emitcode ("; genFarFarAssign",""));
/* first push the right side on to the stack */
while (size--)
while (size--)
{
emitcode ("pop", "acc");
- aopPut (AOP (result), "a", --offset);
+ aopPut (AOP (result), "a", --offset, isOperandVolatile (result, FALSE));
}
freeAsmop (result, NULL, ic, FALSE);
int size, offset;
unsigned long lit = 0L;
- D(emitcode(";","genAssign"));
+ D(emitcode("; genAssign",""));
result = IC_RESULT (ic);
right = IC_RIGHT (ic);
/* if they are the same */
- if (operandsEqu (IC_RESULT (ic), IC_RIGHT (ic)))
+ if (operandsEqu (result, right) &&
+ !isOperandVolatile (result, FALSE) &&
+ !isOperandVolatile (right, FALSE))
return;
aopOp (right, ic, FALSE);
aopOp (result, ic, TRUE);
/* if they are the same registers */
- if (sameRegs (AOP (right), AOP (result)))
+ if (sameRegs (AOP (right), AOP (result)) &&
+ !isOperandVolatile (result, FALSE) &&
+ !isOperandVolatile (right, FALSE))
goto release;
/* if the result is a bit */
if (AOP_TYPE (right) == AOP_LIT)
{
if (((int) operandLitValue (right)))
- aopPut (AOP (result), one, 0);
+ aopPut (AOP (result), one, 0, isOperandVolatile (result, FALSE));
else
- aopPut (AOP (result), zero, 0);
+ aopPut (AOP (result), zero, 0, isOperandVolatile (result, FALSE));
goto release;
}
if (AOP_TYPE (right) == AOP_CRY)
{
emitcode ("mov", "c,%s", AOP (right)->aopu.aop_dir);
- aopPut (AOP (result), "c", 0);
+ aopPut (AOP (result), "c", 0, isOperandVolatile (result, FALSE));
goto release;
}
/* we need to or */
toBoolean (right);
- aopPut (AOP (result), "a", 0);
+ aopPut (AOP (result), "a", 0, isOperandVolatile (result, FALSE));
goto release;
}
while (size--)
{
if ((unsigned int) ((lit >> (size * 8)) & 0x0FFL) == 0)
- aopPut (AOP (result), "a", size);
+ aopPut (AOP (result), "a", size, isOperandVolatile (result, FALSE));
else
aopPut (AOP (result),
aopGet (AOP (right), size, FALSE, FALSE),
- size);
+ size,
+ isOperandVolatile (result, FALSE));
}
}
else
{
aopPut (AOP (result),
aopGet (AOP (right), offset, FALSE, FALSE),
- offset);
+ offset,
+ isOperandVolatile (result, FALSE));
offset++;
}
}
symbol *jtab;
char *l;
- D(emitcode (";", "genJumpTab"));
+ D(emitcode ("; genJumpTab",""));
aopOp (IC_JTCOND (ic), ic, FALSE);
/* get the condition into accumulator */
operand *right = IC_RIGHT (ic);
int size, offset;
- D(emitcode(";", "genCast"));
+ D(emitcode("; genCast",""));
/* if they are equivalent then do nothing */
if (operandsEqu (IC_RESULT (ic), IC_RIGHT (ic)))
if (AOP_TYPE (right) == AOP_LIT)
{
if (((int) operandLitValue (right)))
- aopPut (AOP (result), one, 0);
+ aopPut (AOP (result), one, 0, isOperandVolatile (result, FALSE));
else
- aopPut (AOP (result), zero, 0);
+ aopPut (AOP (result), zero, 0, isOperandVolatile (result, FALSE));
goto release;
}
if (AOP_TYPE (right) == AOP_CRY)
{
emitcode ("mov", "c,%s", AOP (right)->aopu.aop_dir);
- aopPut (AOP (result), "c", 0);
+ aopPut (AOP (result), "c", 0, isOperandVolatile (result, FALSE));
goto release;
}
/* we need to or */
toBoolean (right);
- aopPut (AOP (result), "a", 0);
+ aopPut (AOP (result), "a", 0, isOperandVolatile (result, FALSE));
goto release;
}
{
aopPut (AOP (result),
aopGet (AOP (right), offset, FALSE, FALSE),
- offset);
+ offset,
+ isOperandVolatile (result, FALSE));
offset++;
}
goto release;
/* pointer to generic pointer */
if (IS_GENPTR (ctype))
{
- char *l = zero;
-
if (IS_PTR (type))
p_type = DCL_TYPE (type);
else
{
aopPut (AOP (result),
aopGet (AOP (right), offset, FALSE, FALSE),
- offset);
+ offset,
+ isOperandVolatile (result, FALSE));
offset++;
}
/* the last byte depending on type */
- switch (p_type)
{
- case IPOINTER:
- case POINTER:
- l = zero;
- break;
- case FPOINTER:
- l = one;
- break;
- case CPOINTER:
- l = "#0x02";
- break;
- case GPOINTER:
- l = "0x03";
- break;
- case PPOINTER: // what the fck is this?
- l = "#0x03";
- break;
-
- default:
- /* this should never happen */
- werror (E_INTERNAL_ERROR, __FILE__, __LINE__,
- "got unknown pointer type");
- exit (1);
- }
- aopPut (AOP (result), l, GPTRSIZE - 1);
+ int gpVal = pointerTypeToGPByte(p_type, NULL, NULL);
+ char gpValStr[10];
+
+ if (gpVal == -1)
+ {
+ // pointerTypeToGPByte will have bitched.
+ exit(1);
+ }
+
+ sprintf(gpValStr, "#0x%d", gpVal);
+ aopPut (AOP (result), gpValStr, GPTRSIZE - 1, isOperandVolatile (result, FALSE));
+ }
goto release;
}
{
aopPut (AOP (result),
aopGet (AOP (right), offset, FALSE, FALSE),
- offset);
+ offset,
+ isOperandVolatile (result, FALSE));
offset++;
}
goto release;
{
aopPut (AOP (result),
aopGet (AOP (right), offset, FALSE, FALSE),
- offset);
+ offset,
+ isOperandVolatile (result, FALSE));
offset++;
}
/* now depending on the sign of the source && destination */
size = AOP_SIZE (result) - AOP_SIZE (right);
/* if unsigned or not an integral type */
- if (SPEC_USIGN (rtype) || !IS_SPEC (rtype) || AOP_TYPE(right)==AOP_CRY)
+ if (!IS_SPEC (rtype) || SPEC_USIGN (rtype) || AOP_TYPE(right)==AOP_CRY)
{
while (size--)
- aopPut (AOP (result), zero, offset++);
+ aopPut (AOP (result), zero, offset++, isOperandVolatile (result, FALSE));
}
else
{
emitcode ("rlc", "a");
emitcode ("subb", "a,acc");
while (size--)
- aopPut (AOP (result), "a", offset++);
+ aopPut (AOP (result), "a", offset++, isOperandVolatile (result, FALSE));
}
/* we are done hurray !!!! */
if (!ifx)
return 0;
- D(emitcode (";", "genDjnz"));
+ D(emitcode ("; genDjnz",""));
/* if the if condition has a false label
then we cannot save */
return 0;
}
emitcode ("dec", "%s", rByte);
- aopPut(AOP(IC_RESULT(ic)), rByte, 0);
+ aopPut(AOP(IC_RESULT(ic)), rByte, 0, isOperandVolatile (IC_RESULT (ic), FALSE));
emitcode ("jnz", "%05d$", lbl->key + 100);
}
else if (IS_AOP_PREG (IC_RESULT (ic)))
{
int size = getSize (operandType (IC_RESULT (ic)));
int offset = 0;
- D(emitcode (";", "genReceive"));
+ D(emitcode ("; genReceive",""));
if (ic->argreg == 1) { /* first parameter */
if (isOperandInFarSpace (IC_RESULT (ic)) &&
(OP_SYMBOL (IC_RESULT (ic))->isspilt ||
IS_TRUE_SYMOP (IC_RESULT (ic)))) {
-
+
offset = fReturnSizeMCS51 - size;
while (size--) {
emitcode ("push", "%s", (strcmp (fReturn[fReturnSizeMCS51 - offset - 1], "a") ?
offset = 0;
while (size--) {
emitcode ("pop", "acc");
- aopPut (AOP (IC_RESULT (ic)), "a", offset++);
+ aopPut (AOP (IC_RESULT (ic)), "a", offset++, isOperandVolatile (IC_RESULT (ic), FALSE));
}
-
+
} else {
_G.accInUse++;
aopOp (IC_RESULT (ic), ic, FALSE);
aopOp (IC_RESULT (ic), ic, FALSE);
rb1off = ic->argreg;
while (size--) {
- aopPut (AOP (IC_RESULT (ic)), rb1regs[rb1off++ -5], offset++);
+ aopPut (AOP (IC_RESULT (ic)), rb1regs[rb1off++ -5], offset++, isOperandVolatile (IC_RESULT (ic), FALSE));
}
}
freeAsmop (IC_RESULT (ic), NULL, ic, TRUE);
}
+/*-----------------------------------------------------------------*/
+/* genDummyRead - generate code for dummy read of volatiles */
+/*-----------------------------------------------------------------*/
+static void
+genDummyRead (iCode * ic)
+{
+ operand *right;
+ int size, offset;
+
+ D(emitcode("; genDummyRead",""));
+
+ right = IC_RIGHT (ic);
+
+ aopOp (right, ic, FALSE);
+
+ /* if the result is a bit */
+ if (AOP_TYPE (right) == AOP_CRY)
+ {
+ emitcode ("mov", "c,%s", AOP (right)->aopu.aop_dir);
+ goto release;
+ }
+
+ /* bit variables done */
+ /* general case */
+ size = AOP_SIZE (right);
+ offset = 0;
+ while (size--)
+ {
+ emitcode ("mov", "a,%s", aopGet (AOP (right), offset, FALSE, FALSE));
+ offset++;
+ }
+
+release:
+ freeAsmop (right, NULL, ic, TRUE);
+}
+
/*-----------------------------------------------------------------*/
/* gen51Code - generate code for 8051 based controllers */
/*-----------------------------------------------------------------*/
lineHead = lineCurr = NULL;
/* print the allocation information */
- if (allocInfo)
+ if (allocInfo && currFunc)
printAllocInfo (currFunc, codeOutFile);
/* if debug information required */
if (options.debug && currFunc)
{
- cdbSymbol (currFunc, cdbFile, FALSE, TRUE);
+ debugFile->writeFunction(currFunc);
_G.debugLine = 1;
if (IS_STATIC (currFunc->etype))
emitcode ("", "F%s$%s$0$0 ==.", moduleName, currFunc->name);
ic->level, ic->block);
_G.debugLine = 0;
}
- emitcode ("", ";\t%s:%d: %s", ic->filename, ic->lineno,
- printCLine(ic->filename, ic->lineno));
+ if (!options.noCcodeInAsm) {
+ emitcode ("", ";%s:%d: %s", ic->filename, ic->lineno,
+ printCLine(ic->filename, ic->lineno));
+ }
cln = ic->lineno;
}
+ if (options.iCodeInAsm) {
+ char regsInUse[80];
+ int i;
+
+ for (i=0; i<8; i++) {
+ sprintf (®sInUse[i],
+ "%c", ic->riu & (1<<i) ? i+'0' : '-');
+ }
+ regsInUse[i]=0;
+ emitcode("", "; [%s] ic:%d: %s", regsInUse, ic->seq, printILine(ic));
+ }
/* if the result is marked as
spilt and rematerializable or code for
this has already been generated then
addSet (&_G.sendSet, ic);
break;
+ case DUMMY_READ_VOLATILE:
+ genDummyRead (ic);
+ break;
+
default:
ic = ic;
}
projects / fw / sdcc / blobdiff