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Merge address calc into load

This commit is contained in:
drmortalwombat 2021-09-13 17:43:31 +02:00
parent 45360a26e7
commit 97bd5aa988
2 changed files with 63 additions and 30 deletions
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37
oscar64/NativeCodeGenerator.cpp
View File

@ -3406,7 +3406,31 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
} }
} }
void NativeCodeBasicBlock::LoadEffectiveAddress(InterCodeProcedure* proc, const InterInstruction& ins) void NativeCodeBasicBlock::LoadEffectiveAddress(InterCodeProcedure* proc, const InterInstruction& ins, const InterInstruction* sins1, const InterInstruction* sins0)
{
if (sins1)
{
if (ins.mSTemp[0] < 0 && ins.mSIntConst[0] == 0)
LoadValueToReg(proc, *sins1, ins.mTTemp, nullptr, nullptr);
else
{
if (ins.mSTemp[0] < 0)
{
NativeCodeInstruction ainsl(ASMIT_ADC, ASMIM_IMMEDIATE, ins.mSIntConst[0] & 0xff);
NativeCodeInstruction ainsh(ASMIT_ADC, ASMIM_IMMEDIATE, (ins.mSIntConst[1] >> 8) & 0xff);
LoadValueToReg(proc, *sins1, BC_REG_TMP + proc->mTempOffset[ins.mTTemp], &ainsl, &ainsh);
}
else
{
NativeCodeInstruction ainsl(ASMIT_ADC, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins.mSTemp[0]]);
NativeCodeInstruction ainsh(ASMIT_ADC, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins.mSTemp[0]] + 1);
LoadValueToReg(proc, *sins1, BC_REG_TMP + proc->mTempOffset[ins.mTTemp], &ainsl, &ainsh);
}
}
}
else
{ {
if (ins.mSTemp[0] >= 0 || ins.mSIntConst[0] != 0) if (ins.mSTemp[0] >= 0 || ins.mSIntConst[0] != 0)
mIns.Push(NativeCodeInstruction(ASMIT_CLC, ASMIM_IMPLIED)); mIns.Push(NativeCodeInstruction(ASMIT_CLC, ASMIM_IMPLIED));
@ -3441,6 +3465,7 @@ void NativeCodeBasicBlock::LoadEffectiveAddress(InterCodeProcedure* proc, const
mIns.Push(NativeCodeInstruction(ASMIT_STA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins.mTTemp] + 1)); mIns.Push(NativeCodeInstruction(ASMIT_STA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins.mTTemp] + 1));
} }
}
void NativeCodeBasicBlock::CallFunction(InterCodeProcedure* proc, const InterInstruction& ins) void NativeCodeBasicBlock::CallFunction(InterCodeProcedure* proc, const InterInstruction& ins)
{ {
@ -4417,6 +4442,14 @@ void NativeCodeProcedure::CompileInterBlock(InterCodeProcedure* iproc, InterCode
block->BinaryOperator(iproc, iblock->mInstructions[i + 2], &(iblock->mInstructions[i + 1]), &ins); block->BinaryOperator(iproc, iblock->mInstructions[i + 2], &(iblock->mInstructions[i + 1]), &ins);
i += 2; i += 2;
} }
else if (i + 1 < iblock->mInstructions.Size() &&
ins.mOperandSize >= 2 &&
iblock->mInstructions[i + 1].mCode == IC_LEA &&
iblock->mInstructions[i + 1].mSTemp[1] == ins.mTTemp && iblock->mInstructions[i + 1].mSFinal[1])
{
block->LoadEffectiveAddress(iproc, iblock->mInstructions[i + 1], &ins, nullptr);
i++;
}
else else
block->LoadValue(iproc, ins); block->LoadValue(iproc, ins);
break; break;
@ -4443,7 +4476,7 @@ void NativeCodeProcedure::CompileInterBlock(InterCodeProcedure* iproc, InterCode
block->NumericConversion(iproc, ins); block->NumericConversion(iproc, ins);
break; break;
case IC_LEA: case IC_LEA:
block->LoadEffectiveAddress(iproc, ins); block->LoadEffectiveAddress(iproc, ins, nullptr, nullptr);
break; break;
case IC_CONSTANT: case IC_CONSTANT:
block->LoadConstant(iproc, ins); block->LoadConstant(iproc, ins);

2
oscar64/NativeCodeGenerator.h
View File

@ -93,7 +93,7 @@ public:
void BinaryOperator(InterCodeProcedure* proc, const InterInstruction& ins, const InterInstruction* sins1, const InterInstruction* sins0); void BinaryOperator(InterCodeProcedure* proc, const InterInstruction& ins, const InterInstruction* sins1, const InterInstruction* sins0);
void UnaryOperator(InterCodeProcedure* proc, const InterInstruction& ins); void UnaryOperator(InterCodeProcedure* proc, const InterInstruction& ins);
void RelationalOperator(InterCodeProcedure* proc, const InterInstruction& ins, NativeCodeProcedure * nproc, NativeCodeBasicBlock* trueJump, NativeCodeBasicBlock * falseJump); void RelationalOperator(InterCodeProcedure* proc, const InterInstruction& ins, NativeCodeProcedure * nproc, NativeCodeBasicBlock* trueJump, NativeCodeBasicBlock * falseJump);
void LoadEffectiveAddress(InterCodeProcedure* proc, const InterInstruction& ins); void LoadEffectiveAddress(InterCodeProcedure* proc, const InterInstruction& ins, const InterInstruction* sins1, const InterInstruction* sins0);
void NumericConversion(InterCodeProcedure* proc, const InterInstruction& ins); void NumericConversion(InterCodeProcedure* proc, const InterInstruction& ins);
void CopyValue(InterCodeProcedure* proc, const InterInstruction& ins, NativeCodeProcedure* nproc); void CopyValue(InterCodeProcedure* proc, const InterInstruction& ins, NativeCodeProcedure* nproc);