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Improve global address in register reuse

This commit is contained in:
drmortalwombat 2024-07-24 15:31:23 +02:00
parent 5b50389340
commit 7ecd6adb20
1 changed files with 98 additions and 5 deletions
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103
oscar64/NativeCodeGenerator.cpp
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@ -2566,6 +2566,14 @@ void NativeCodeInstruction::Simulate(NativeRegisterDataSet& data)
data.mRegs[CPU_REG_Z].mValue = mAddress;
data.mRegs[CPU_REG_Z].mMode = NRDM_IMMEDIATE;
}
else if (mMode == ASMIM_IMMEDIATE_ADDRESS)
{
data.mRegs[CPU_REG_X].mValue = mAddress;
data.mRegs[CPU_REG_X].mLinkerObject = mLinkerObject;
data.mRegs[CPU_REG_X].mFlags = mFlags;
data.mRegs[CPU_REG_X].mMode = NRDM_IMMEDIATE_ADDRESS;
data.mRegs[CPU_REG_Z].Reset();
}
else
{
data.mRegs[CPU_REG_X].Reset();
@ -2597,6 +2605,14 @@ void NativeCodeInstruction::Simulate(NativeRegisterDataSet& data)
data.mRegs[CPU_REG_Z].mValue = mAddress;
data.mRegs[CPU_REG_Z].mMode = NRDM_IMMEDIATE;
}
else if (mMode == ASMIM_IMMEDIATE_ADDRESS)
{
data.mRegs[CPU_REG_Y].mValue = mAddress;
data.mRegs[CPU_REG_Y].mLinkerObject = mLinkerObject;
data.mRegs[CPU_REG_Y].mFlags = mFlags;
data.mRegs[CPU_REG_Y].mMode = NRDM_IMMEDIATE_ADDRESS;
data.mRegs[CPU_REG_Z].Reset();
}
else
{
data.mRegs[CPU_REG_Y].Reset();
@ -3230,11 +3246,23 @@ bool NativeCodeInstruction::ValueForwarding(NativeRegisterDataSet& data, AsmInsT
}
else if (mMode == ASMIM_IMMEDIATE_ADDRESS)
{
data.mRegs[CPU_REG_A].mMode = NRDM_IMMEDIATE_ADDRESS;
data.mRegs[CPU_REG_A].mValue = mAddress;
data.mRegs[CPU_REG_A].mLinkerObject = mLinkerObject;
data.mRegs[CPU_REG_A].mFlags = mFlags;
data.mRegs[CPU_REG_Z].Reset();
if (data.mRegs[CPU_REG_A].mMode == NRDM_IMMEDIATE_ADDRESS &&
data.mRegs[CPU_REG_A].mLinkerObject == mLinkerObject &&
data.mRegs[CPU_REG_A].mFlags == mFlags &&
data.mRegs[CPU_REG_A].mValue == mAddress && !(mLive & LIVE_CPU_REG_Z))
{
mType = ASMIT_NOP;
mMode = ASMIM_IMPLIED;
changed = true;
}
else
{
data.mRegs[CPU_REG_A].mMode = NRDM_IMMEDIATE_ADDRESS;
data.mRegs[CPU_REG_A].mValue = mAddress;
data.mRegs[CPU_REG_A].mLinkerObject = mLinkerObject;
data.mRegs[CPU_REG_A].mFlags = mFlags;
data.mRegs[CPU_REG_Z].Reset();
}
}
else
{
@ -3475,6 +3503,26 @@ bool NativeCodeInstruction::ValueForwarding(NativeRegisterDataSet& data, AsmInsT
data.mRegs[CPU_REG_Z].mValue = mAddress;
}
}
else if (mMode == ASMIM_IMMEDIATE_ADDRESS)
{
if (data.mRegs[CPU_REG_X].mMode == NRDM_IMMEDIATE_ADDRESS &&
data.mRegs[CPU_REG_X].mLinkerObject == mLinkerObject &&
data.mRegs[CPU_REG_X].mFlags == mFlags &&
data.mRegs[CPU_REG_X].mValue == mAddress && !(mLive & LIVE_CPU_REG_Z))
{
mType = ASMIT_NOP;
mMode = ASMIM_IMPLIED;
changed = true;
}
else
{
data.mRegs[CPU_REG_X].mMode = NRDM_IMMEDIATE_ADDRESS;
data.mRegs[CPU_REG_X].mValue = mAddress;
data.mRegs[CPU_REG_X].mLinkerObject = mLinkerObject;
data.mRegs[CPU_REG_X].mFlags = mFlags;
data.mRegs[CPU_REG_Z].Reset();
}
}
else
{
if (mMode != ASMIM_ZERO_PAGE && mMode != ASMIM_ABSOLUTE && mMode != ASMIM_ABSOLUTE_Y)
@ -3509,6 +3557,26 @@ bool NativeCodeInstruction::ValueForwarding(NativeRegisterDataSet& data, AsmInsT
data.mRegs[CPU_REG_Z].mValue = mAddress;
}
}
else if (mMode == ASMIM_IMMEDIATE_ADDRESS)
{
if (data.mRegs[CPU_REG_Y].mMode == NRDM_IMMEDIATE_ADDRESS &&
data.mRegs[CPU_REG_Y].mLinkerObject == mLinkerObject &&
data.mRegs[CPU_REG_Y].mFlags == mFlags &&
data.mRegs[CPU_REG_Y].mValue == mAddress && !(mLive & LIVE_CPU_REG_Z))
{
mType = ASMIT_NOP;
mMode = ASMIM_IMPLIED;
changed = true;
}
else
{
data.mRegs[CPU_REG_Y].mMode = NRDM_IMMEDIATE_ADDRESS;
data.mRegs[CPU_REG_Y].mValue = mAddress;
data.mRegs[CPU_REG_Y].mLinkerObject = mLinkerObject;
data.mRegs[CPU_REG_Y].mFlags = mFlags;
data.mRegs[CPU_REG_Z].Reset();
}
}
else
{
if (mMode != ASMIM_ZERO_PAGE && mMode != ASMIM_ABSOLUTE && mMode != ASMIM_ABSOLUTE_X)
@ -47320,6 +47388,31 @@ bool NativeCodeBasicBlock::PeepHoleOptimizerIterateN(int i, int pass)
}
}
#endif
#if 1
if (pass == 0 &&
mIns[i + 0].mType == ASMIT_CLC &&
mIns[i + 1].mType == ASMIT_ADC && mIns[i + 1].mMode == ASMIM_IMMEDIATE_ADDRESS && (mIns[i + 1].mFlags & NCIF_LOWER) &&
mIns[i + 2].mType == ASMIT_STA && mIns[i + 2].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 3].mType == ASMIT_LDA && mIns[i + 3].mMode == ASMIM_IMMEDIATE_ADDRESS && (mIns[i + 3].mFlags & NCIF_UPPER) && (mIns[i + 3].mLinkerObject == mIns[i + 1].mLinkerObject) &&
mIns[i + 4].mType == ASMIT_ADC && mIns[i + 4].mMode == ASMIM_ZERO_PAGE && mIns[i + 4].mAddress == mIns[i + 2].mAddress + 1 &&
mIns[i + 5].mType == ASMIT_STA && mIns[i + 5].mMode == ASMIM_ZERO_PAGE && mIns[i + 5].mAddress == mIns[i + 4].mAddress &&
!(mIns[i + 5].mLive & LIVE_CPU_REG_A))
{
int yval = RetrieveYValue(i);
mProc->ResetPatched();
if (CheckForwardSumYPointer(this, mIns[i + 2].mAddress, mIns[i + 2].mAddress, mIns[i + 1], i + 6, yval, 0))
{
mProc->ResetPatched();
if (PatchForwardSumYPointer(this, mIns[i + 2].mAddress, mIns[i + 2].mAddress, mIns[i + 1], i + 6, yval))
{
mIns[i + 1].mType = ASMIT_NOP; mIns[i + 1].mMode = ASMIM_IMPLIED;
return true;
}
}
}
#endif
#if 1
if (mIns[i + 0].mType == ASMIT_CLC &&
mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_ZERO_PAGE &&