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Fix compare reversal and reuse if z flag used

This commit is contained in:
drmortalwombat 2025-03-07 08:17:51 +01:00
parent 2582f3076d
commit 490180f9dc
1 changed files with 17 additions and 3 deletions
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20
oscar64/NativeCodeGenerator.cpp
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@ -25625,7 +25625,14 @@ bool NativeCodeBasicBlock::JoinTailCodeSequences(NativeCodeProcedure* proc, bool
mIns[nins - 1].mLive |= LIVE_CPU_REG_A;
mExitRequiredRegs += CPU_REG_A;
mTrueJump->mEntryRequiredRegs += CPU_REG_A;
mTrueJump->mIns.Remove(0);
if (mTrueJump->mIns[0].mLive & LIVE_CPU_REG_Z)
{
mTrueJump->mIns[0].mType = ASMIT_ORA;
mTrueJump->mIns[0].mMode = ASMIM_IMMEDIATE;
mTrueJump->mIns[0].mAddress = 0;
}
else
mTrueJump->mIns.Remove(0);
changed = true;
CheckLive();
@ -25637,7 +25644,14 @@ bool NativeCodeBasicBlock::JoinTailCodeSequences(NativeCodeProcedure* proc, bool
mIns[nins - 1].mLive |= LIVE_CPU_REG_A;
mExitRequiredRegs += CPU_REG_A;
mFalseJump->mEntryRequiredRegs += CPU_REG_A;
mFalseJump->mIns.Remove(0);
if (mFalseJump->mIns[0].mLive & LIVE_CPU_REG_Z)
{
mFalseJump->mIns[0].mType = ASMIT_ORA;
mFalseJump->mIns[0].mMode = ASMIM_IMMEDIATE;
mFalseJump->mIns[0].mAddress = 0;
}
else
mFalseJump->mIns.Remove(0);
changed = true;
CheckLive();
@ -53253,7 +53267,7 @@ void NativeCodeProcedure::Compile(InterCodeProcedure* proc)
mInterProc->mLinkerObject->mNativeProc = this;
CheckFunc = !strcmp(mIdent->mString, "shots_hide");
CheckFunc = !strcmp(mIdent->mString, "doScroll");
int nblocks = proc->mBlocks.Size();
tblocks = new NativeCodeBasicBlock * [nblocks];