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VU: scale VU0 cycle rate with EE 

Also fix cycle underflow issue
This commit is contained in:
refractionpcsx2 2023-11-02 11:14:28 +00:00
parent 9b9e70e7e8
commit 50872438e9
3 changed files with 29 additions and 3 deletions
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2
pcsx2/x86/microVU.h
View File

@ -135,7 +135,7 @@ struct microVU
u32 p; // Holds current P instance index u32 p; // Holds current P instance index
u32 q; // Holds current Q instance index u32 q; // Holds current Q instance index
u32 totalCycles; // Total Cycles that mVU is expected to run for u32 totalCycles; // Total Cycles that mVU is expected to run for
u32 cycles; // Cycles Counter s32 cycles; // Cycles Counter
VURegs& regs() const { return ::vuRegs[index]; } VURegs& regs() const { return ::vuRegs[index]; }

26
pcsx2/x86/microVU_Compile.inl
View File

@ -464,6 +464,32 @@ void mVUtestCycles(microVU& mVU, microFlagCycles& mFC)
{ {
iPC = mVUstartPC; iPC = mVUstartPC;
if (isVU0 && EmuConfig.Speedhacks.EECycleRate != 0)
{
switch (std::min(static_cast<int>(EmuConfig.Speedhacks.EECycleRate), static_cast<int>(mVUcycles)))
{
case -3: // 50%
mVUcycles *= 2.0f;
break;
case -2: // 60%
mVUcycles *= 1.6666667f;
break;
case -1: // 75%
mVUcycles *= 1.3333333f;
break;
case 1: // 130%
mVUcycles /= 1.3f;
break;
case 2: // 180%
mVUcycles /= 1.8f;
break;
case 3: // 300%
mVUcycles /= 3.0f;
break;
default:
break;
}
}
xMOV(eax, ptr32[&mVU.cycles]); xMOV(eax, ptr32[&mVU.cycles]);
if (EmuConfig.Gamefixes.VUSyncHack) if (EmuConfig.Gamefixes.VUSyncHack)
xSUB(eax, mVUcycles); // Running behind, make sure we have time to run the block xSUB(eax, mVUcycles); // Running behind, make sure we have time to run the block

4
pcsx2/x86/microVU_Execute.inl
View File

@ -355,12 +355,12 @@ _mVUt void mVUcleanUp()
mVUreset(mVU, false); mVUreset(mVU, false);
} }
mVU.cycles = mVU.totalCycles - mVU.cycles; mVU.cycles = mVU.totalCycles - std::max(0, mVU.cycles);
mVU.regs().cycle += mVU.cycles; mVU.regs().cycle += mVU.cycles;
if (!vuIndex || !THREAD_VU1) if (!vuIndex || !THREAD_VU1)
{ {
u32 cycles_passed = std::min(mVU.cycles, 3000u) * EmuConfig.Speedhacks.EECycleSkip; u32 cycles_passed = std::min(mVU.cycles, 3000) * EmuConfig.Speedhacks.EECycleSkip;
if (cycles_passed > 0) if (cycles_passed > 0)
{ {
s32 vu0_offset = VU0.cycle - cpuRegs.cycle; s32 vu0_offset = VU0.cycle - cpuRegs.cycle;