Written By - Sandeep Dutta . sandeep.dutta@usa.net (1998)
and - Jean-Louis VERN.jlvern@writeme.com (1999)
Bug Fixes - Wojciech Stryjewski wstryj1@tiger.lsu.edu (1999 v2.1.9a)
+ DS390 adaptation by Kevin Vigor <kevin@vigor.nu>
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
{
if (options.model == MODEL_FLAT24)
emitcode ("mov", "dpx1,#0x40");
- TR_DPTR("#2");
+ TR_DPTR("#2");
emitcode ("mov", "dph1,#0x00");
emitcode ("mov", "dpl1, a");
}
if (IS_FUNC (sym->type))
{
sym->aop = aop = newAsmop (AOP_IMMD);
- aop->aopu.aop_immd = Safe_calloc (1, strlen (sym->rname) + 1);
- strcpy (aop->aopu.aop_immd, sym->rname);
+ aop->aopu.aop_immd.aop_immd1 = Safe_calloc (1, strlen (sym->rname) + 1);
+ strcpy (aop->aopu.aop_immd.aop_immd1, sym->rname);
aop->size = FPTRSIZE;
return aop;
}
{
iCode *ic = sym->rematiCode;
asmop *aop = newAsmop (AOP_IMMD);
-
+ int ptr_type ;
int val = 0;
for (;;)
val += (int) operandLitValue (IC_RIGHT (ic));
else if (ic->op == '-')
val -= (int) operandLitValue (IC_RIGHT (ic));
- else
- break;
-
+ else if (IS_CAST_ICODE(ic)) {
+ sym_link *from_type = operandType(IC_RIGHT(ic));
+ aop->aopu.aop_immd.from_cast_remat = 1;
+ ic = OP_SYMBOL (IC_RIGHT (ic))->rematiCode;
+ ptr_type = DCL_TYPE(from_type);
+ continue ;
+ } else break;
+
ic = OP_SYMBOL (IC_LEFT (ic))->rematiCode;
}
else
strcpy (buffer, OP_SYMBOL (IC_LEFT (ic))->rname);
- aop->aopu.aop_immd = Safe_calloc (1, strlen (buffer) + 1);
- strcpy (aop->aopu.aop_immd, buffer);
+ 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);
+ }
+
return aop;
}
genSetDPTR (1);
if (!canClobberACC)
{
- TR_AP("#1");
- emitcode ("xch", "a, %s", DP2_RESULT_REG);
+ TR_AP("#1");
+ emitcode ("xch", "a, %s", DP2_RESULT_REG);
}
}
return (dname ? "acc" : "a");
case AOP_IMMD:
- if (bit16)
- sprintf (s, "#%s", aop->aopu.aop_immd);
+ if (aop->aopu.aop_immd.from_cast_remat && (offset == (aop->size-1))) {
+ sprintf(s,"%s",aop->aopu.aop_immd.aop_immd2);
+ } else if (bit16)
+ sprintf (s, "#%s", aop->aopu.aop_immd.aop_immd1);
else if (offset)
sprintf (s, "#(%s >> %d)",
- aop->aopu.aop_immd,
+ aop->aopu.aop_immd.aop_immd1,
offset * 8);
else
sprintf (s, "#%s",
- aop->aopu.aop_immd);
+ aop->aopu.aop_immd.aop_immd1);
rs = Safe_calloc (1, strlen (s) + 1);
strcpy (rs, s);
return rs;
/* if the registers have been saved already then
do nothing */
- if (ic->regsSaved || (OP_SYMBOL (IC_LEFT (ic))->calleeSave) ||
- SPEC_NAKED(OP_SYM_ETYPE(IC_LEFT(ic))))
+ if (ic->regsSaved || IFFUNC_CALLEESAVES(OP_SYMBOL (IC_LEFT (ic))->type) ||
+ IFFUNC_ISNAKED(OP_SYM_TYPE(IC_LEFT(ic))))
return;
/* find the registers in use at this time
static void
genCall (iCode * ic)
{
- sym_link *detype;
+ sym_link *dtype;
bool restoreBank = FALSE;
bool swapBanks = FALSE;
/* if we are calling a not _naked function that is not using
the same register bank then we need to save the
destination registers on the stack */
- detype = getSpec (operandType (IC_LEFT (ic)));
- if (detype && !SPEC_NAKED(detype) &&
- (SPEC_BANK (currFunc->etype) != SPEC_BANK (detype)) &&
- IS_ISR (currFunc->etype))
+ dtype = operandType (IC_LEFT (ic));
+ if (dtype && !IFFUNC_ISNAKED(dtype) &&
+ (FUNC_REGBANK (currFunc->type) != FUNC_REGBANK (dtype)) &&
+ IFFUNC_ISISR (currFunc->type))
{
if (!ic->bankSaved)
{
/* This is unexpected; the bank should have been saved in
* genFunction.
*/
- saveRBank (SPEC_BANK (detype), ic, FALSE);
+ saveRBank (FUNC_REGBANK (dtype), ic, FALSE);
restoreBank = TRUE;
}
swapBanks = TRUE;
if (swapBanks)
{
emitcode ("mov", "psw,#0x%02x",
- ((SPEC_BANK(detype)) << 3) & 0xff);
+ ((FUNC_REGBANK(dtype)) << 3) & 0xff);
}
/* make the call */
if (swapBanks)
{
emitcode ("mov", "psw,#0x%02x",
- ((SPEC_BANK(currFunc->etype)) << 3) & 0xff);
+ ((FUNC_REGBANK(currFunc->type)) << 3) & 0xff);
}
/* if we need assign a result value */
}
/* if we hade saved some registers then unsave them */
- if (ic->regsSaved && !(OP_SYMBOL (IC_LEFT (ic))->calleeSave))
+ if (ic->regsSaved && !IFFUNC_CALLEESAVES(dtype))
unsaveRegisters (ic);
/* if register bank was saved then pop them */
if (restoreBank)
- unsaveRBank (SPEC_BANK (detype), ic, FALSE);
+ unsaveRBank (FUNC_REGBANK (dtype), ic, FALSE);
}
/*-----------------------------------------------------------------*/
static void
genPcall (iCode * ic)
{
- sym_link *detype;
+ sym_link *dtype;
symbol *rlbl = newiTempLabel (NULL);
+ bool restoreBank=FALSE;
D (emitcode (";", "genPcall ");
);
/* if we are calling a function that is not using
the same register bank then we need to save the
destination registers on the stack */
- detype = getSpec (operandType (IC_LEFT (ic)));
- if (detype &&
- IS_ISR (currFunc->etype) &&
- (SPEC_BANK (currFunc->etype) != SPEC_BANK (detype)))
- saveRBank (SPEC_BANK (detype), ic, TRUE);
-
+ dtype = operandType (IC_LEFT (ic));
+ if (dtype && !IFFUNC_ISNAKED(dtype) &&
+ IFFUNC_ISISR (currFunc->type) &&
+ (FUNC_REGBANK (currFunc->type) != FUNC_REGBANK (dtype))) {
+ saveRBank (FUNC_REGBANK (dtype), ic, TRUE);
+ restoreBank=TRUE;
+ }
/* push the return address on to the stack */
emitcode ("mov", "a,#%05d$", (rlbl->key + 100));
}
/* if register bank was saved then unsave them */
- if (detype &&
- (SPEC_BANK (currFunc->etype) !=
- SPEC_BANK (detype)))
- unsaveRBank (SPEC_BANK (detype), ic, TRUE);
-
+ if (restoreBank)
+ unsaveRBank (FUNC_REGBANK (dtype), ic, TRUE);
+
/* if we hade saved some registers then
unsave them */
- if (ic->regsSaved)
+ if (ic->regsSaved && !IFFUNC_CALLEESAVES(dtype))
unsaveRegisters (ic);
}
genFunction (iCode * ic)
{
symbol *sym;
- sym_link *fetype;
+ sym_link *ftype;
bool switchedPSW = FALSE;
D (emitcode (";", "genFunction "););
emitcode (";", "-----------------------------------------");
emitcode ("", "%s:", sym->rname);
- fetype = getSpec (operandType (IC_LEFT (ic)));
+ ftype = operandType (IC_LEFT (ic));
- if (SPEC_NAKED(fetype))
+ if (IFFUNC_ISNAKED(ftype))
{
emitcode(";", "naked function: no prologue.");
return;
}
/* if critical function then turn interrupts off */
- if (SPEC_CRTCL (fetype))
+ if (IFFUNC_ISCRITICAL (ftype))
emitcode ("clr", "ea");
/* here we need to generate the equates for the
register bank if required */
- if (SPEC_BANK (fetype) != rbank)
+ if (FUNC_REGBANK (ftype) != rbank)
{
int i;
- rbank = SPEC_BANK (fetype);
+ rbank = FUNC_REGBANK (ftype);
for (i = 0; i < ds390_nRegs; i++)
{
if (strcmp (regs390[i].base, "0") == 0)
/* if this is an interrupt service routine then
save acc, b, dpl, dph */
- if (IS_ISR (sym->etype))
+ if (IFFUNC_ISISR (sym->type))
{
if (!inExcludeList ("acc"))
/* if this isr has no bank i.e. is going to
run with bank 0 , then we need to save more
registers :-) */
- if (!SPEC_BANK (sym->etype))
+ if (!FUNC_REGBANK (sym->type))
{
/* if this function does not call any other
function then we can be economical and
save only those registers that are used */
- if (!sym->hasFcall)
+ if (!IFFUNC_HASFCALL(sym->type))
{
int i;
*/
unsigned long banksToSave = 0;
- if (sym->hasFcall)
+ if (IFFUNC_HASFCALL(sym->type))
{
#define MAX_REGISTER_BANKS 4
if (i->op == CALL)
{
- sym_link *detype;
+ sym_link *dtype;
- detype = getSpec(operandType (IC_LEFT(i)));
- if (detype
- && SPEC_BANK(detype) != SPEC_BANK(sym->etype))
+ dtype = operandType (IC_LEFT(i));
+ if (dtype
+ && FUNC_REGBANK(dtype) != FUNC_REGBANK(sym->type))
{
/* Mark this bank for saving. */
- if (SPEC_BANK(detype) >= MAX_REGISTER_BANKS)
+ if (FUNC_REGBANK(dtype) >= MAX_REGISTER_BANKS)
{
- werror(E_NO_SUCH_BANK, SPEC_BANK(detype));
+ werror(E_NO_SUCH_BANK, FUNC_REGBANK(dtype));
}
else
{
- banksToSave |= (1 << SPEC_BANK(detype));
+ banksToSave |= (1 << FUNC_REGBANK(dtype));
}
/* And note that we don't need to do it in
*/
emitcode ("push", "psw");
emitcode ("mov", "psw,#0x%02x",
- (SPEC_BANK (sym->etype) << 3) & 0x00ff);
+ (FUNC_REGBANK (sym->type) << 3) & 0x00ff);
switchedPSW = TRUE;
}
}
}
}
+ // jwk: this needs a closer look
SPEC_ISR_SAVED_BANKS(currFunc->etype) = banksToSave;
}
}
{
/* if callee-save to be used for this function
then save the registers being used in this function */
- if (sym->calleeSave)
+ if (IFFUNC_CALLEESAVES(sym->type))
{
int i;
}
/* set the register bank to the desired value */
- if ((SPEC_BANK (sym->etype) || IS_ISR (sym->etype))
+ if ((FUNC_REGBANK (sym->type) || FUNC_ISISR (sym->type))
&& !switchedPSW)
{
emitcode ("push", "psw");
- emitcode ("mov", "psw,#0x%02x", (SPEC_BANK (sym->etype) << 3) & 0x00ff);
+ emitcode ("mov", "psw,#0x%02x", (FUNC_REGBANK (sym->type) << 3) & 0x00ff);
}
- if (IS_RENT (sym->etype) || options.stackAuto)
+ if (IFFUNC_ISREENT (sym->type) || options.stackAuto)
{
if (options.useXstack)
D (emitcode (";", "genEndFunction "););
- if (SPEC_NAKED(sym->etype))
+ if (IFFUNC_ISNAKED(sym->type))
{
emitcode(";", "naked function: no epilogue.");
return;
}
- if (IS_RENT (sym->etype) || options.stackAuto)
+ if (IFFUNC_ISREENT (sym->type) || options.stackAuto)
{
emitcode ("mov", "%s,_bp", spname);
}
}
- if ((IS_RENT (sym->etype) || options.stackAuto))
+ if ((IFFUNC_ISREENT (sym->type) || options.stackAuto))
{
if (options.useXstack)
{
}
/* restore the register bank */
- if (SPEC_BANK (sym->etype) || IS_ISR (sym->etype))
+ if (FUNC_REGBANK (sym->type) || IFFUNC_ISISR (sym->type))
{
- if (!SPEC_BANK (sym->etype) || !IS_ISR (sym->etype)
+ if (!FUNC_REGBANK (sym->type) || !IFFUNC_ISISR (sym->type)
|| !options.useXstack)
{
/* Special case of ISR using non-zero bank with useXstack
}
}
- if (IS_ISR (sym->etype))
+ if (IFFUNC_ISISR (sym->type))
{
/* now we need to restore the registers */
/* if this isr has no bank i.e. is going to
run with bank 0 , then we need to save more
registers :-) */
- if (!SPEC_BANK (sym->etype))
+ if (!FUNC_REGBANK (sym->type))
{
/* if this function does not call any other
function then we can be economical and
save only those registers that are used */
- if (!sym->hasFcall)
+ if (!IFFUNC_HASFCALL(sym->type))
{
int i;
* 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;
if (!inExcludeList ("acc"))
emitcode ("pop", "acc");
- if (SPEC_CRTCL (sym->etype))
+ if (IFFUNC_ISCRITICAL (sym->type))
emitcode ("setb", "ea");
/* if debug then send end of function */
}
else
{
- if (SPEC_CRTCL (sym->etype))
+ if (IFFUNC_ISCRITICAL (sym->type))
emitcode ("setb", "ea");
- if (sym->calleeSave)
+ if (IFFUNC_CALLEESAVES(sym->type))
{
int i;
}
}
+#if 0 // AOP_OP_3 is deprecated; nobody likes Ack errors.
+ // Please don't bring it back without a really good reason.
// Macro to aopOp all three operands of an ic. Will fatal if this cannot be done
// (because all three operands are in far space).
#define AOP_OP_3(ic) \
fprintf(stderr, \
"Ack: three operands in far space! (%s:%d %s:%d)\n", __FILE__, __LINE__, ic->filename, ic->lineno); \
}
+#endif
// Macro to aopOp all three operands of an ic. If this cannot be done,
// the IC_LEFT and IC_RIGHT operands will be aopOp'd, and the rc parameter
static void
genMultbits (operand * left,
operand * right,
- operand * result)
+ operand * result,
+ iCode * ic)
{
emitcode ("mov", "c,%s", AOP (left)->aopu.aop_dir);
emitcode ("anl", "c,%s", AOP (right)->aopu.aop_dir);
+ aopOp(result, ic, TRUE, FALSE);
outBitC (result);
}
static void
genMultOneByte (operand * left,
operand * right,
- operand * result)
+ operand * result,
+ iCode * ic)
{
sym_link *opetype = operandType (result);
symbol *lbl;
- int size=AOP_SIZE(result);
- if (size<1 || size>2) {
- // this should never happen
- fprintf (stderr, "size!=1||2 (%d) in %s at line:%d \n",
- AOP_SIZE(result), __FILE__, lineno);
- exit (1);
- }
/* (if two literals: the value is computed before) */
/* if one literal, literal on the right */
emitcode ("mov", "b,%s", aopGet (AOP (right), 0, FALSE, FALSE, TRUE));
MOVA (aopGet (AOP (left), 0, FALSE, FALSE, TRUE));
emitcode ("mul", "ab");
+
+ _G.accInUse++;
+ aopOp(result, ic, TRUE, FALSE);
+
+ if (AOP_SIZE(result)<1 || AOP_SIZE(result)>2)
+ {
+ // this should never happen
+ fprintf (stderr, "size!=1||2 (%d) in %s at line:%d \n",
+ AOP_SIZE(result), __FILE__, lineno);
+ exit (1);
+ }
+
aopPut (AOP (result), "a", 0);
- if (size==2) {
+ _G.accInUse--;
+ if (AOP_SIZE(result)==2)
+ {
aopPut (AOP (result), "b", 1);
}
return;
}
emitcode ("mul", "ab");
+ _G.accInUse++;
+ aopOp(result, ic, TRUE, FALSE);
+
+ if (AOP_SIZE(result)<1 || AOP_SIZE(result)>2)
+ {
+ // this should never happen
+ fprintf (stderr, "size!=1||2 (%d) in %s at line:%d \n",
+ AOP_SIZE(result), __FILE__, lineno);
+ exit (1);
+ }
+
lbl=newiTempLabel(NULL);
emitcode ("jnb", "F0,%05d$", lbl->key+100);
// only ONE op was negative, we have to do a 8/16-bit two's complement
emitcode ("cpl", "a"); // lsb
- if (size==1) {
+ if (AOP_SIZE(result)==1) {
emitcode ("inc", "a");
} else {
emitcode ("add", "a,#1");
emitcode ("", "%05d$:", lbl->key+100);
aopPut (AOP (result), "a", 0);
- if (size==2) {
+ _G.accInUse--;
+ if (AOP_SIZE(result)==2) {
aopPut (AOP (result), "b", 1);
}
}
+/*-----------------------------------------------------------------*/
+/* genMultTwoByte - use the DS390 MAC unit to do 16*16 multiply */
+/*-----------------------------------------------------------------*/
+static void genMultTwoByte (operand *left, operand *right,
+ operand *result, iCode *ic)
+{
+ sym_link *retype = getSpec(operandType(right));
+ sym_link *letype = getSpec(operandType(left));
+ int umult = SPEC_USIGN(retype) | SPEC_USIGN(letype);
+ symbol *lbl;
+
+ if (AOP_TYPE (left) == AOP_LIT) {
+ operand *t = right;
+ right = left;
+ left = t;
+ }
+ /* load up MB with right */
+ if (!umult) {
+ emitcode("clr","F0");
+ if (AOP_TYPE(right) == AOP_LIT) {
+ int val=floatFromVal (AOP (right)->aopu.aop_lit);
+ if (val < 0) {
+ emitcode("setb","F0");
+ val = -val;
+ }
+ emitcode ("mov","mb,#0x%02x",val & 0xff);
+ emitcode ("mov","mb,#0x%02x",(val >> 8) & 0xff);
+ } else {
+ lbl = newiTempLabel(NULL);
+ emitcode ("mov","b,%s",aopGet(AOP(right),0,FALSE,FALSE,TRUE));
+ emitcode ("mov","a,%s",aopGet(AOP(right),1,FALSE,FALSE,TRUE));
+ emitcode ("jnb","acc.7,%05d$",lbl->key+100);
+ emitcode ("xch", "a,b");
+ emitcode ("cpl","a");
+ emitcode ("add", "a,#1");
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); // msb
+ emitcode ("addc", "a,#0");
+ emitcode ("setb","F0");
+ emitcode ("","%05d$:",lbl->key+100);
+ emitcode ("mov","mb,b");
+ emitcode ("mov","mb,a");
+ }
+ } else {
+ emitcode ("mov","mb,%s",aopGet(AOP(right),0,FALSE,FALSE,TRUE));
+ emitcode ("mov","mb,%s",aopGet(AOP(right),1,FALSE,FALSE,TRUE));
+ }
+ /* load up MA with left */
+ if (!umult) {
+ lbl = newiTempLabel(NULL);
+ emitcode ("mov","b,%s",aopGet(AOP(left),0,FALSE,FALSE,TRUE));
+ emitcode ("mov","a,%s",aopGet(AOP(left),1,FALSE,FALSE,TRUE));
+ emitcode ("jnb","acc.7,%05d$",lbl->key+100);
+ emitcode ("xch", "a,b");
+ emitcode ("cpl","a");
+ emitcode ("add", "a,#1");
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); // msb
+ emitcode ("addc","a,#0");
+ emitcode ("jbc","F0,%05d$",lbl->key+100);
+ emitcode ("setb","F0");
+ emitcode ("","%05d$:",lbl->key+100);
+ emitcode ("mov","ma,b");
+ emitcode ("mov","ma,a");
+ } else {
+ emitcode ("mov","ma,%s",aopGet(AOP(left),0,FALSE,FALSE,TRUE));
+ emitcode ("mov","ma,%s",aopGet(AOP(left),1,FALSE,FALSE,TRUE));
+ }
+ /* wait for multiplication to finish */
+ lbl = newiTempLabel(NULL);
+ emitcode("","%05d$:", lbl->key+100);
+ emitcode("mov","a,mcnt1");
+ emitcode("anl","a,#0x80");
+ emitcode("jnz","%05d$",lbl->key+100);
+
+ freeAsmop (left, NULL, ic, TRUE);
+ freeAsmop (right, NULL, ic,TRUE);
+ aopOp(result, ic, TRUE, FALSE);
+
+ /* if unsigned then simple */
+ if (umult) {
+ emitcode ("mov","a,ma");
+ if (AOP_SIZE(result) >= 4) aopPut(AOP(result),"a",3);
+ emitcode ("mov","a,ma");
+ if (AOP_SIZE(result) >= 3) aopPut(AOP(result),"a",2);
+ aopPut(AOP(result),"ma",1);
+ aopPut(AOP(result),"ma",0);
+ } else {
+ emitcode("push","ma");
+ emitcode("push","ma");
+ emitcode("push","ma");
+ MOVA("ma");
+ /* negate result if needed */
+ lbl = newiTempLabel(NULL);
+ emitcode("jnb","F0,%05d$",lbl->key+100);
+ emitcode("cpl","a");
+ emitcode("add","a,#1");
+ emitcode("","%05d$:", lbl->key+100);
+ if (AOP_TYPE(result) == AOP_ACC)
+ {
+ D(emitcode(";", "ACC special case."););
+ /* We know result is the only live aop, and
+ * it's obviously not a DPTR2, so AP is available.
+ */
+ emitcode("mov", "%s,acc", DP2_RESULT_REG);
+ }
+ else
+ {
+ aopPut(AOP(result),"a",0);
+ }
+
+ emitcode("pop","acc");
+ lbl = newiTempLabel(NULL);
+ emitcode("jnb","F0,%05d$",lbl->key+100);
+ emitcode("cpl","a");
+ emitcode("addc","a,#0");
+ emitcode("","%05d$:", lbl->key+100);
+ aopPut(AOP(result),"a",1);
+ emitcode("pop","acc");
+ if (AOP_SIZE(result) >= 3) {
+ lbl = newiTempLabel(NULL);
+ emitcode("jnb","F0,%05d$",lbl->key+100);
+ emitcode("cpl","a");
+ emitcode("addc","a,#0");
+ emitcode("","%05d$:", lbl->key+100);
+ aopPut(AOP(result),"a",2);
+ }
+ emitcode("pop","acc");
+ if (AOP_SIZE(result) >= 4) {
+ lbl = newiTempLabel(NULL);
+ emitcode("jnb","F0,%05d$",lbl->key+100);
+ emitcode("cpl","a");
+ emitcode("addc","a,#0");
+ emitcode("","%05d$:", lbl->key+100);
+ aopPut(AOP(result),"a",3);
+ }
+ if (AOP_TYPE(result) == AOP_ACC)
+ {
+ /* We stashed the result away above. */
+ emitcode("mov", "acc,%s", DP2_RESULT_REG);
+ }
+
+ }
+ freeAsmop (result, NULL, ic, TRUE);
+ return ;
+}
+
/*-----------------------------------------------------------------*/
/* genMult - generates code for multiplication */
/*-----------------------------------------------------------------*/
D (emitcode (";", "genMult "););
/* assign the amsops */
- AOP_OP_3 (ic);
+ AOP_OP_2 (ic);
/* special cases first */
/* both are bits */
if (AOP_TYPE (left) == AOP_CRY &&
AOP_TYPE (right) == AOP_CRY)
{
- genMultbits (left, right, result);
+ genMultbits (left, right, result, ic);
goto release;
}
if (AOP_SIZE (left) == 1 &&
AOP_SIZE (right) == 1)
{
- genMultOneByte (left, right, result);
+ genMultOneByte (left, right, result, ic);
goto release;
}
+ if (AOP_SIZE (left) == 2 && AOP_SIZE(right) == 2) {
+ /* use the ds390 ARITHMETIC accel UNIT */
+ genMultTwoByte (left, right, result, ic);
+ return ;
+ }
/* should have been converted to function call */
- assert (1);
+ assert (0);
release:
freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
static void
genDivbits (operand * left,
operand * right,
- operand * result)
+ operand * result,
+ iCode * ic)
{
char *l;
LOAD_AB_FOR_DIV (left, right, l);
emitcode ("div", "ab");
emitcode ("rrc", "a");
+ aopOp(result, ic, TRUE, FALSE);
+
aopPut (AOP (result), "c", 0);
}
static void
genDivOneByte (operand * left,
operand * right,
- operand * result)
+ operand * result,
+ iCode * ic)
{
sym_link *opetype = operandType (result);
char *l;
symbol *lbl;
int size, offset;
- size = AOP_SIZE (result) - 1;
offset = 1;
/* signed or unsigned */
if (SPEC_USIGN (opetype))
{
- /* unsigned is easy */
- LOAD_AB_FOR_DIV (left, right, l);
- emitcode ("div", "ab");
- aopPut (AOP (result), "a", 0);
- while (size--)
- aopPut (AOP (result), zero, offset++);
+ /* unsigned is easy */
+ LOAD_AB_FOR_DIV (left, right, l);
+ emitcode ("div", "ab");
+
+ _G.accInUse++;
+ aopOp(result, ic, TRUE, FALSE);
+ aopPut (AOP (result), "a", 0);
+ _G.accInUse--;
+
+ size = AOP_SIZE (result) - 1;
+
+ while (size--)
+ {
+ aopPut (AOP (result), zero, offset++);
+ }
return;
}
emitcode ("", "%05d$:", (lbl->key + 100));
/* now we are done */
- aopPut (AOP (result), "b", 0);
- if (size > 0)
+ _G.accInUse++;
+ aopOp(result, ic, TRUE, FALSE);
+
+ aopPut (AOP (result), "b", 0);
+
+ size = AOP_SIZE (result) - 1;
+
+ if (size > 0)
{
emitcode ("mov", "c,b.7");
emitcode ("subb", "a,acc");
}
- while (size--)
- aopPut (AOP (result), "a", offset++);
+ while (size--)
+ {
+ aopPut (AOP (result), "a", offset++);
+ }
+ _G.accInUse--;
+
+}
+
+/*-----------------------------------------------------------------*/
+/* genDivTwoByte - use the DS390 MAC unit to do 16/16 divide */
+/*-----------------------------------------------------------------*/
+static void genDivTwoByte (operand *left, operand *right,
+ operand *result, iCode *ic)
+{
+ sym_link *retype = getSpec(operandType(right));
+ sym_link *letype = getSpec(operandType(left));
+ int umult = SPEC_USIGN(retype) | SPEC_USIGN(letype);
+ symbol *lbl;
+
+ /* load up MA with left */
+ if (!umult) {
+ emitcode("clr","F0");
+ lbl = newiTempLabel(NULL);
+ emitcode ("mov","b,%s",aopGet(AOP(left),0,FALSE,FALSE,TRUE));
+ emitcode ("mov","a,%s",aopGet(AOP(left),1,FALSE,FALSE,TRUE));
+ emitcode ("jnb","acc.7,%05d$",lbl->key+100);
+ emitcode ("xch", "a,b");
+ emitcode ("cpl","a");
+ emitcode ("add", "a,#1");
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); // msb
+ emitcode ("addc","a,#0");
+ emitcode ("setb","F0");
+ emitcode ("","%05d$:",lbl->key+100);
+ emitcode ("mov","ma,b");
+ emitcode ("mov","ma,a");
+ } else {
+ emitcode ("mov","ma,%s",aopGet(AOP(left),0,FALSE,FALSE,TRUE));
+ emitcode ("mov","ma,%s",aopGet(AOP(left),1,FALSE,FALSE,TRUE));
+ }
+
+ /* load up MB with right */
+ if (!umult) {
+ if (AOP_TYPE(right) == AOP_LIT) {
+ int val=floatFromVal (AOP (right)->aopu.aop_lit);
+ if (val < 0) {
+ lbl = newiTempLabel(NULL);
+ emitcode ("jbc","F0,%05d$",lbl->key+100);
+ emitcode("setb","F0");
+ emitcode ("","%05d$:",lbl->key+100);
+ val = -val;
+ }
+ emitcode ("mov","mb,#0x%02x",val & 0xff);
+ emitcode ("mov","mb,#0x%02x",(val >> 8) & 0xff);
+ } else {
+ lbl = newiTempLabel(NULL);
+ emitcode ("mov","b,%s",aopGet(AOP(right),0,FALSE,FALSE,TRUE));
+ emitcode ("mov","a,%s",aopGet(AOP(right),1,FALSE,FALSE,TRUE));
+ emitcode ("jnb","acc.7,%05d$",lbl->key+100);
+ emitcode ("xch", "a,b");
+ emitcode ("cpl","a");
+ emitcode ("add", "a,#1");
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); // msb
+ emitcode ("addc", "a,#0");
+ emitcode ("jbc","F0,%05d$",lbl->key+100);
+ emitcode ("setb","F0");
+ emitcode ("","%05d$:",lbl->key+100);
+ emitcode ("mov","mb,b");
+ emitcode ("mov","mb,a");
+ }
+ } else {
+ emitcode ("mov","mb,%s",aopGet(AOP(right),0,FALSE,FALSE,TRUE));
+ emitcode ("mov","mb,%s",aopGet(AOP(right),1,FALSE,FALSE,TRUE));
+ }
+ /* wait for multiplication to finish */
+ lbl = newiTempLabel(NULL);
+ emitcode("","%05d$:", lbl->key+100);
+ emitcode("mov","a,mcnt1");
+ emitcode("anl","a,#0x80");
+ emitcode("jnz","%05d$",lbl->key+100);
+
+ freeAsmop (left, NULL, ic, TRUE);
+ freeAsmop (right, NULL, ic,TRUE);
+ aopOp(result, ic, TRUE, FALSE);
+
+ /* if unsigned then simple */
+ if (umult) {
+ aopPut(AOP(result),"ma",1);
+ aopPut(AOP(result),"ma",0);
+ } else {
+ emitcode("push","ma");
+ MOVA("ma");
+ /* negate result if needed */
+ lbl = newiTempLabel(NULL);
+ emitcode("jnb","F0,%05d$",lbl->key+100);
+ emitcode("cpl","a");
+ emitcode("add","a,#1");
+ emitcode("","%05d$:", lbl->key+100);
+ aopPut(AOP(result),"a",0);
+ emitcode("pop","acc");
+ lbl = newiTempLabel(NULL);
+ emitcode("jnb","F0,%05d$",lbl->key+100);
+ emitcode("cpl","a");
+ emitcode("addc","a,#0");
+ emitcode("","%05d$:", lbl->key+100);
+ aopPut(AOP(result),"a",1);
+ }
+ freeAsmop (result, NULL, ic, TRUE);
+ return ;
}
/*-----------------------------------------------------------------*/
operand *right = IC_RIGHT (ic);
operand *result = IC_RESULT (ic);
- D (emitcode (";", "genDiv ");
- );
+ D (emitcode (";", "genDiv "););
/* assign the amsops */
- AOP_OP_3 (ic);
+ AOP_OP_2 (ic);
/* special cases first */
/* both are bits */
if (AOP_TYPE (left) == AOP_CRY &&
AOP_TYPE (right) == AOP_CRY)
{
- genDivbits (left, right, result);
+ genDivbits (left, right, result, ic);
goto release;
}
if (AOP_SIZE (left) == 1 &&
AOP_SIZE (right) == 1)
{
- genDivOneByte (left, right, result);
+ genDivOneByte (left, right, result, ic);
goto release;
}
+ if (AOP_SIZE (left) == 2 && AOP_SIZE(right) == 2) {
+ /* use the ds390 ARITHMETIC accel UNIT */
+ genDivTwoByte (left, right, result, ic);
+ return ;
+ }
/* should have been converted to function call */
- assert (1);
+ assert (0);
release:
freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
freeAsmop (right, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
static void
genModbits (operand * left,
operand * right,
- operand * result)
+ operand * result,
+ iCode * ic)
{
char *l;
emitcode ("div", "ab");
emitcode ("mov", "a,b");
emitcode ("rrc", "a");
+ aopOp(result, ic, TRUE, FALSE);
aopPut (AOP (result), "c", 0);
}
static void
genModOneByte (operand * left,
operand * right,
- operand * result)
+ operand * result,
+ iCode * ic)
{
sym_link *opetype = operandType (result);
char *l;
/* unsigned is easy */
LOAD_AB_FOR_DIV (left, right, l);
emitcode ("div", "ab");
+ aopOp(result, ic, TRUE, FALSE);
aopPut (AOP (result), "b", 0);
return;
}
emitcode ("", "%05d$:", (lbl->key + 100));
/* now we are done */
+ aopOp(result, ic, TRUE, FALSE);
aopPut (AOP (result), "b", 0);
}
+/*-----------------------------------------------------------------*/
+/* genModTwoByte - use the DS390 MAC unit to do 16%16 modulus */
+/*-----------------------------------------------------------------*/
+static void genModTwoByte (operand *left, operand *right,
+ operand *result, iCode *ic)
+{
+ sym_link *retype = getSpec(operandType(right));
+ sym_link *letype = getSpec(operandType(left));
+ int umult = SPEC_USIGN(retype) | SPEC_USIGN(letype);
+ symbol *lbl;
+
+ /* load up MA with left */
+ if (!umult) {
+ lbl = newiTempLabel(NULL);
+ emitcode ("mov","b,%s",aopGet(AOP(left),0,FALSE,FALSE,TRUE));
+ emitcode ("mov","a,%s",aopGet(AOP(left),1,FALSE,FALSE,TRUE));
+ emitcode ("jnb","acc.7,%05d$",lbl->key+100);
+ emitcode ("xch", "a,b");
+ emitcode ("cpl","a");
+ emitcode ("add", "a,#1");
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); // msb
+ emitcode ("addc","a,#0");
+ emitcode ("","%05d$:",lbl->key+100);
+ emitcode ("mov","ma,b");
+ emitcode ("mov","ma,a");
+ } else {
+ emitcode ("mov","ma,%s",aopGet(AOP(left),0,FALSE,FALSE,TRUE));
+ emitcode ("mov","ma,%s",aopGet(AOP(left),1,FALSE,FALSE,TRUE));
+ }
+
+ /* load up MB with right */
+ if (!umult) {
+ if (AOP_TYPE(right) == AOP_LIT) {
+ int val=floatFromVal (AOP (right)->aopu.aop_lit);
+ if (val < 0) {
+ val = -val;
+ }
+ emitcode ("mov","mb,#0x%02x",val & 0xff);
+ emitcode ("mov","mb,#0x%02x",(val >> 8) & 0xff);
+ } else {
+ lbl = newiTempLabel(NULL);
+ emitcode ("mov","b,%s",aopGet(AOP(right),0,FALSE,FALSE,TRUE));
+ emitcode ("mov","a,%s",aopGet(AOP(right),1,FALSE,FALSE,TRUE));
+ emitcode ("jnb","acc.7,%05d$",lbl->key+100);
+ emitcode ("xch", "a,b");
+ emitcode ("cpl","a");
+ emitcode ("add", "a,#1");
+ emitcode ("xch", "a,b");
+ emitcode ("cpl", "a"); // msb
+ emitcode ("addc", "a,#0");
+ emitcode ("","%05d$:",lbl->key+100);
+ emitcode ("mov","mb,b");
+ emitcode ("mov","mb,a");
+ }
+ } else {
+ emitcode ("mov","mb,%s",aopGet(AOP(right),0,FALSE,FALSE,TRUE));
+ emitcode ("mov","mb,%s",aopGet(AOP(right),1,FALSE,FALSE,TRUE));
+ }
+
+ /* wait for multiplication to finish */
+ lbl = newiTempLabel(NULL);
+ emitcode("","%05d$:", lbl->key+100);
+ emitcode("mov","a,mcnt1");
+ emitcode("anl","a,#0x80");
+ emitcode("jnz","%05d$",lbl->key+100);
+
+ freeAsmop (left, NULL, ic, TRUE);
+ freeAsmop (right, NULL, ic,TRUE);
+ aopOp(result, ic, TRUE, FALSE);
+
+ aopPut(AOP(result),"mb",1);
+ aopPut(AOP(result),"mb",0);
+ freeAsmop (result, NULL, ic, TRUE);
+ return ;
+}
+
/*-----------------------------------------------------------------*/
/* genMod - generates code for division */
/*-----------------------------------------------------------------*/
operand *right = IC_RIGHT (ic);
operand *result = IC_RESULT (ic);
- D (emitcode (";", "genMod ");
- );
+ D (emitcode (";", "genMod "); );
/* assign the amsops */
- AOP_OP_3 (ic);
+ AOP_OP_2 (ic);
/* special cases first */
/* both are bits */
if (AOP_TYPE (left) == AOP_CRY &&
AOP_TYPE (right) == AOP_CRY)
{
- genModbits (left, right, result);
+ genModbits (left, right, result, ic);
goto release;
}
if (AOP_SIZE (left) == 1 &&
AOP_SIZE (right) == 1)
{
- genModOneByte (left, right, result);
+ genModOneByte (left, right, result, ic);
goto release;
}
+ if (AOP_SIZE (left) == 2 && AOP_SIZE(right) == 2) {
+ /* use the ds390 ARITHMETIC accel UNIT */
+ genModTwoByte (left, right, result, ic);
+ return ;
+ }
+
/* should have been converted to function call */
- assert (1);
+ assert (0);
release:
freeAsmop (left, NULL, ic, (RESULTONSTACK (ic) ? FALSE : TRUE));
#endif
/* if left is a literal & right is not then exchange them */
- if ((AOP_TYPE (left) == AOP_LIT && AOP_TYPE (right) != AOP_LIT) ||
- AOP_NEEDSACC (left))
+ if ((AOP_TYPE (left) == AOP_LIT && AOP_TYPE (right) != AOP_LIT)
+#ifdef LOGIC_OPS_BROKEN
+ || AOP_NEEDSACC (left)
+#endif
+ )
{
operand *tmp = right;
right = left;
aopPut (AOP (result), zero, offset);
continue;
}
- D (emitcode (";", "better literal AND.");
- );
+ D (emitcode (";", "better literal AND."););
MOVA (aopGet (AOP (left), offset, FALSE, FALSE, TRUE));
emitcode ("anl", "a, %s", aopGet (AOP (right), offset,
FALSE, FALSE, FALSE));
}
else
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("anl", "a,%s",
- aopGet (AOP (left), offset, FALSE, FALSE, FALSE));
- }
+ char *rOp = aopGet (AOP (right), offset, FALSE, FALSE, TRUE);
+ if (!strcmp(rOp, "a") || !strcmp(rOp, "acc"))
+ {
+ emitcode("mov", "b,a");
+ rOp = "b";
+ }
+
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, TRUE));
+ emitcode ("anl", "a,%s", rOp);
+ }
}
aopPut (AOP (result), "a", offset);
}
#endif
/* if left is a literal & right is not then exchange them */
- if ((AOP_TYPE (left) == AOP_LIT && AOP_TYPE (right) != AOP_LIT) ||
- AOP_NEEDSACC (left))
+ if ((AOP_TYPE (left) == AOP_LIT && AOP_TYPE (right) != AOP_LIT)
+#ifdef LOGIC_OPS_BROKEN
+ || AOP_NEEDSACC (left) // I think this is a net loss now.
+#endif
+ )
{
operand *tmp = right;
right = left;
}
else
{
+ _startLazyDPSEvaluation();
for (; (size--); offset++)
{
// normal case
offset);
continue;
}
- D (emitcode (";", "better literal OR.");
- );
+ D (emitcode (";", "better literal OR."););
MOVA (aopGet (AOP (left), offset, FALSE, FALSE, TRUE));
emitcode ("orl", "a, %s", aopGet (AOP (right), offset,
FALSE, FALSE, FALSE));
}
else
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("orl", "a,%s",
- aopGet (AOP (left), offset, FALSE, FALSE, FALSE));
+ char *rOp = aopGet (AOP (right), offset, FALSE, FALSE, TRUE);
+
+ if (!strcmp(rOp, "a") || !strcmp(rOp, "acc"))
+ {
+ emitcode("mov", "b,a");
+ rOp = "b";
+ }
+
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, TRUE));
+ emitcode ("orl", "a,%s", rOp);
}
}
aopPut (AOP (result), "a", offset);
}
+ _endLazyDPSEvaluation();
}
}
/* if left is a literal & right is not ||
if left needs acc & right does not */
- if ((AOP_TYPE (left) == AOP_LIT && AOP_TYPE (right) != AOP_LIT) ||
- (AOP_NEEDSACC (left) && !AOP_NEEDSACC (right)))
+ if ((AOP_TYPE (left) == AOP_LIT && AOP_TYPE (right) != AOP_LIT)
+#ifdef LOGIC_OPS_BROKEN
+ || (AOP_NEEDSACC (left) && !AOP_NEEDSACC (right))
+#endif
+ )
{
operand *tmp = right;
right = left;
}
else
{
- MOVA (aopGet (AOP (right), offset, FALSE, FALSE, TRUE));
- emitcode ("xrl", "a,%s",
- aopGet (AOP (left), offset, FALSE, TRUE, FALSE));
+ char *rOp = aopGet (AOP (right), offset, FALSE, FALSE, TRUE);
+ if (!strcmp(rOp, "a") || !strcmp(rOp, "acc"))
+ {
+ emitcode("mov", "b,a");
+ rOp = "b";
+ }
+
+ MOVA (aopGet (AOP (left), offset, FALSE, FALSE, TRUE));
+ emitcode ("xrl", "a,%s", rOp);
}
}
aopPut (AOP (result), "a", offset);
projects / fw / sdcc / blobdiff