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Special handling for a few more runtime functions.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@5737 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz 2012-06-24 14:29:27 +00:00
parent 7aefd9b4e7
commit 43d0d2fb78
1 changed files with 80 additions and 63 deletions
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143
src/cc65/codeent.c
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@ -232,7 +232,7 @@ const char* MakeHexArg (unsigned Num)
CodeEntry* NewCodeEntry (opc_t OPC, am_t AM, const char* Arg,
CodeLabel* JumpTo, LineInfo* LI)
CodeLabel* JumpTo, LineInfo* LI)
/* Create a new code entry, initialize and return it */
{
/* Get the opcode description */
@ -533,24 +533,24 @@ void CE_GenRegInfo (CodeEntry* E, RegContents* InputRegs)
Out->RegA = In->RegA & (short) E->Num;
} else if (E->AM == AM65_ZP) {
switch (GetKnownReg (E->Use & REG_ZP, In)) {
case REG_TMP1:
Out->RegA = In->RegA & In->Tmp1;
break;
case REG_PTR1_LO:
Out->RegA = In->RegA & In->Ptr1Lo;
break;
case REG_PTR1_HI:
Out->RegA = In->RegA & In->Ptr1Hi;
break;
case REG_SREG_LO:
Out->RegA = In->RegA & In->SRegLo;
break;
case REG_SREG_HI:
Out->RegA = In->RegA & In->SRegHi;
break;
default:
Out->RegA = UNKNOWN_REGVAL;
break;
case REG_TMP1:
Out->RegA = In->RegA & In->Tmp1;
break;
case REG_PTR1_LO:
Out->RegA = In->RegA & In->Ptr1Lo;
break;
case REG_PTR1_HI:
Out->RegA = In->RegA & In->Ptr1Hi;
break;
case REG_SREG_LO:
Out->RegA = In->RegA & In->SRegLo;
break;
case REG_SREG_HI:
Out->RegA = In->RegA & In->SRegHi;
break;
default:
Out->RegA = UNKNOWN_REGVAL;
break;
}
} else {
Out->RegA = UNKNOWN_REGVAL;
@ -567,20 +567,20 @@ void CE_GenRegInfo (CodeEntry* E, RegContents* InputRegs)
} else if (E->AM == AM65_ZP) {
switch (GetKnownReg (E->Chg & REG_ZP, In)) {
case REG_TMP1:
Out->Tmp1 = (In->Tmp1 << 1) & 0xFF;
break;
Out->Tmp1 = (In->Tmp1 << 1) & 0xFF;
break;
case REG_PTR1_LO:
Out->Ptr1Lo = (In->Ptr1Lo << 1) & 0xFF;
break;
Out->Ptr1Lo = (In->Ptr1Lo << 1) & 0xFF;
break;
case REG_PTR1_HI:
Out->Ptr1Hi = (In->Ptr1Hi << 1) & 0xFF;
break;
Out->Ptr1Hi = (In->Ptr1Hi << 1) & 0xFF;
break;
case REG_SREG_LO:
Out->SRegLo = (In->SRegLo << 1) & 0xFF;
break;
Out->SRegLo = (In->SRegLo << 1) & 0xFF;
break;
case REG_SREG_HI:
Out->SRegHi = (In->SRegHi << 1) & 0xFF;
break;
Out->SRegHi = (In->SRegHi << 1) & 0xFF;
break;
}
} else if (E->AM == AM65_ZPX) {
/* Invalidates all ZP registers */
@ -654,20 +654,20 @@ void CE_GenRegInfo (CodeEntry* E, RegContents* InputRegs)
} else if (E->AM == AM65_ZP) {
switch (GetKnownReg (E->Chg & REG_ZP, In)) {
case REG_TMP1:
Out->Tmp1 = (In->Tmp1 - 1) & 0xFF;
break;
Out->Tmp1 = (In->Tmp1 - 1) & 0xFF;
break;
case REG_PTR1_LO:
Out->Ptr1Lo = (In->Ptr1Lo - 1) & 0xFF;
break;
Out->Ptr1Lo = (In->Ptr1Lo - 1) & 0xFF;
break;
case REG_PTR1_HI:
Out->Ptr1Hi = (In->Ptr1Hi - 1) & 0xFF;
break;
Out->Ptr1Hi = (In->Ptr1Hi - 1) & 0xFF;
break;
case REG_SREG_LO:
Out->SRegLo = (In->SRegLo - 1) & 0xFF;
break;
Out->SRegLo = (In->SRegLo - 1) & 0xFF;
break;
case REG_SREG_HI:
Out->SRegHi = (In->SRegHi - 1) & 0xFF;
break;
Out->SRegHi = (In->SRegHi - 1) & 0xFF;
break;
}
} else if (E->AM == AM65_ZPX) {
/* Invalidates all ZP registers */
@ -693,18 +693,18 @@ void CE_GenRegInfo (CodeEntry* E, RegContents* InputRegs)
Out->RegA = In->RegA ^ (short) E->Num;
} else if (E->AM == AM65_ZP) {
switch (GetKnownReg (E->Use & REG_ZP, In)) {
case REG_TMP1:
Out->RegA = In->RegA ^ In->Tmp1;
break;
case REG_PTR1_LO:
Out->RegA = In->RegA ^ In->Ptr1Lo;
break;
case REG_PTR1_HI:
Out->RegA = In->RegA ^ In->Ptr1Hi;
break;
case REG_SREG_LO:
Out->RegA = In->RegA ^ In->SRegLo;
break;
case REG_TMP1:
Out->RegA = In->RegA ^ In->Tmp1;
break;
case REG_PTR1_LO:
Out->RegA = In->RegA ^ In->Ptr1Lo;
break;
case REG_PTR1_HI:
Out->RegA = In->RegA ^ In->Ptr1Hi;
break;
case REG_SREG_LO:
Out->RegA = In->RegA ^ In->SRegLo;
break;
case REG_SREG_HI:
Out->RegA = In->RegA ^ In->SRegHi;
break;
@ -812,13 +812,24 @@ void CE_GenRegInfo (CodeEntry* E, RegContents* InputRegs)
Out->SRegHi = UNKNOWN_REGVAL;
}
/* ## FIXME: Quick hack for some known functions: */
if (strcmp (E->Arg, "tosandax") == 0) {
if (strcmp (E->Arg, "complax") == 0) {
if (RegValIsKnown (In->RegA)) {
Out->RegA = (In->RegA ^ 0xFF);
}
if (RegValIsKnown (In->RegX)) {
Out->RegX = (In->RegX ^ 0xFF);
}
} else if (strcmp (E->Arg, "tosandax") == 0) {
if (In->RegA == 0) {
Out->RegA = 0;
}
if (In->RegX == 0) {
Out->RegX = 0;
}
} else if (strcmp (E->Arg, "tosaslax") == 0) {
if ((In->RegA & 0x0F) >= 8) {
Out->RegA = 0;
}
} else if (strcmp (E->Arg, "tosorax") == 0) {
if (In->RegA == 0xFF) {
Out->RegA = 0xFF;
@ -826,7 +837,13 @@ void CE_GenRegInfo (CodeEntry* E, RegContents* InputRegs)
if (In->RegX == 0xFF) {
Out->RegX = 0xFF;
}
} else if (FindBoolCmpCond (E->Arg) != CMP_INV) {
} else if (strcmp (E->Arg, "tosshlax") == 0) {
if ((In->RegA & 0x0F) >= 8) {
Out->RegA = 0;
}
} else if (FindBoolCmpCond (E->Arg) != CMP_INV ||
FindTosCmpCond (E->Arg) != CMP_INV) {
/* Result is boolean value, so X is zero on output */
Out->RegX = 0;
}
break;
@ -843,21 +860,21 @@ void CE_GenRegInfo (CodeEntry* E, RegContents* InputRegs)
} else if (E->AM == AM65_ZP) {
switch (GetKnownReg (E->Use & REG_ZP, In)) {
case REG_TMP1:
Out->RegA = In->Tmp1;
break;
Out->RegA = In->Tmp1;
break;
case REG_PTR1_LO:
Out->RegA = In->Ptr1Lo;
break;
Out->RegA = In->Ptr1Lo;
break;
case REG_PTR1_HI:
Out->RegA = In->Ptr1Hi;
break;
Out->RegA = In->Ptr1Hi;
break;
case REG_SREG_LO:
Out->RegA = In->SRegLo;
break;
Out->RegA = In->SRegLo;
break;
case REG_SREG_HI:
Out->RegA = In->SRegHi;
break;
default:
default:
Out->RegA = UNKNOWN_REGVAL;
break;
}
@ -912,7 +929,7 @@ void CE_GenRegInfo (CodeEntry* E, RegContents* InputRegs)
Out->RegY = In->Ptr1Hi;
break;
case REG_SREG_LO:
Out->RegY = In->SRegLo;
Out->RegY = In->SRegLo;
break;
case REG_SREG_HI:
Out->RegY = In->SRegHi;