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x86/microVU: Write VIs from CTC2 as 16 bits 

The micro recompilers only write as 16 bit, so in case the value in the
register was greater than 0xFFFF, we don't want to store higher bits
that get stuck.
This commit is contained in:
Connor McLaughlin 2022-11-13 17:57:46 +10:00 committed by refractionpcsx2
parent a12accf3fa
commit a7af3cd483
1 changed files with 12 additions and 1 deletions
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13
pcsx2/x86/microVU_Macro.inl
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@ -513,11 +513,22 @@ static void recCTC2()
xAND(eax, 0x0C0C);
xMOV(ptr32[&vu0Regs.VI[REG_FBRST].UL], eax);
break;
case 0:
// Ignore writes to vi00.
break;
default:
// Executing vu0 block here fixes the intro of Ratchet and Clank
// sVU's COP2 has a comment that "Donald Duck" needs this too...
if (_Rd_)
if (_Rd_ < REG_STATUS_FLAG)
{
// Need to expand this out, because we want to write as 16 bits.
_eeMoveGPRtoR(eax, _Rt_);
xMOV(ptr16[&vu0Regs.VI[_Rd_].US[0]], ax);
}
else
{
_eeMoveGPRtoM((uptr)&vu0Regs.VI[_Rd_].UL, _Rt_);
}
break;
}
}