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PPCRec: Fix mcrfs and fcmpo using the wrong instruction

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This commit is contained in:
Crementif
2026-09-05 16:30:47 +02:00
parent 10ba5585c8
commit 9a5b3301b2
1 changed files with 14 additions and 6 deletions
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20
src/Cafe/HW/Espresso/Recompiler/PPCRecompilerImlGen.cpp
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@@ -2703,8 +2703,21 @@ bool PPCRecompiler_decodePPCInstruction(ppcImlGenContext_t* ppcImlGenContext)
switch (PPC_getBits(opcode, 30, 5))
{
case 0:
if (PPCRecompilerImlGen_FCMPU(ppcImlGenContext, opcode) == false)
// fcmpo (32) and mcrfs (64) are X-form and share the low 5 bits with fcmpu
switch (PPC_getBits(opcode, 30, 10))
{
case 0:
if (PPCRecompilerImlGen_FCMPU(ppcImlGenContext, opcode) == false)
unsupportedInstructionFound = true;
break;
case 32:
if (PPCRecompilerImlGen_FCMPO(ppcImlGenContext, opcode) == false)
unsupportedInstructionFound = true;
break;
default:
unsupportedInstructionFound = true;
break;
}
ppcImlGenContext->hasFPUInstruction = true;
break;
case 12:
@@ -2765,11 +2778,6 @@ bool PPCRecompiler_decodePPCInstruction(ppcImlGenContext_t* ppcImlGenContext)
default:
switch (PPC_getBits(opcode, 30, 10))
{
case 32:
if (PPCRecompilerImlGen_FCMPO(ppcImlGenContext, opcode) == false)
unsupportedInstructionFound = true;
ppcImlGenContext->hasFPUInstruction = true;
break;
case 40:
if (PPCRecompilerImlGen_FNEG(ppcImlGenContext, opcode) == false)
unsupportedInstructionFound = true;