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iR5900: Skip reloading COP2 flags register when it's not used

This commit is contained in:
Connor McLaughlin 2022-09-10 14:53:08 +10:00 committed by refractionpcsx2
parent 5a0c8c9f32
commit bc3729c930
2 changed files with 5 additions and 5 deletions
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6
pcsx2/x86/iR5900Analysis.cpp
View File

@ -151,10 +151,10 @@ void COP2FlagHackPass::Run(u32 start, u32 end, EEINST* inst_cache)
m_status_denormalized = true;
}
// If we're still behind the next CFC2 after the sticky bits got cleared, we need to update flags
// also do this if we're a vsqrt/vrsqrt/vdiv, these update status unconditionally.
// If we're still behind the next CFC2 after the sticky bits got cleared, we need to update flags.
// Also do this if we're a vsqrt/vrsqrt/vdiv, these update status unconditionally.
const u32 sub_opcode = (cpuRegs.code & 3) | ((cpuRegs.code >> 4) & 0x7c);
if (apc < m_cfc2_pc || (_Rs_ >= 020 && sub_opcode >= 070 && sub_opcode <= 072))
if (apc < m_cfc2_pc || (_Rs_ >= 020 && _Funct_ >= 074 && sub_opcode >= 070 && sub_opcode <= 072))
inst->info |= EEINST_COP2_STATUS_FLAG;
m_last_status_write = inst;

4
pcsx2/x86/microVU_Macro.inl
View File

@ -71,7 +71,7 @@ void setupMacroOp(int mode, const char* opName)
microVU0.prog.IRinfo.info[0].mFlag.doFlag = true;
microVU0.prog.IRinfo.info[0].mFlag.write = 0xff;
}
if (mode & 0x10)
if (mode & 0x10 && (!CHECK_VU_FLAGHACK || g_pCurInstInfo->info & (EEINST_COP2_STATUS_FLAG | EEINST_COP2_DENORMALIZE_STATUS_FLAG)))
{
_freeX86reg(gprF0);
@ -107,7 +107,7 @@ void endMacroOp(int mode)
mVUallocSFLAGc(eax, gprF0, 0);
xMOV(ptr32[&vu0Regs.VI[REG_STATUS_FLAG].UL], eax);
}
else
else if (g_pCurInstInfo->info & (EEINST_COP2_STATUS_FLAG | EEINST_COP2_DENORMALIZE_STATUS_FLAG))
{
// backup denormalized flags for the next instruction
// this is fine, because we'll normalize them again before this reg is accessed