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Corrected MMI PMADDW and PMSUBW on the Interpreters thanks to DobieStation for finding the fix

This commit is contained in:
refractionpcsx2 2018-07-31 18:45:32 +01:00
parent 59ec48a120
commit 1e0b0605a6
1 changed files with 29 additions and 10 deletions
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39
pcsx2/MMI.cpp
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@ -1049,13 +1049,26 @@ void QFSRV() { // JayteeMaster: changed a bit to avoid screw up
static __fi void _PMADDW(int dd, int ss)
{
s64 temp = (s64)((s64)cpuRegs.LO.SL[ss] | ((s64)cpuRegs.HI.SL[ss] << 32)) +
((s64)cpuRegs.GPR.r[_Rs_].SL[ss] * (s64)cpuRegs.GPR.r[_Rt_].SL[ss]);
s64 temp = ((s64)cpuRegs.GPR.r[_Rs_].SL[ss] * (s64)cpuRegs.GPR.r[_Rt_].SL[ss]);
s64 temp2 = temp + ((s64)cpuRegs.HI.SL[ss] << 32);
cpuRegs.LO.SD[dd] = (s32)(temp & 0xffffffff);
cpuRegs.HI.SD[dd] = (s32)(temp >> 32);
if (ss == 0)
{
if (((cpuRegs.GPR.r[_Rt_].SL[ss] & 0x7FFFFFFF) == 0 || (cpuRegs.GPR.r[_Rt_].SL[ss] & 0x7FFFFFFF) == 0x7FFFFFFF) &&
cpuRegs.GPR.r[_Rs_].SL[ss] != cpuRegs.GPR.r[_Rt_].SL[ss])
temp2 += 0x70000000;
}
if (_Rd_) cpuRegs.GPR.r[_Rd_].SD[dd] = temp;
temp2 = (s32)(temp2 / 4294967295);
cpuRegs.LO.SD[dd] = (s32)(temp & 0xffffffff) + cpuRegs.LO.SL[ss];
cpuRegs.HI.SD[dd] = (s32)temp2;
if (_Rd_)
{
cpuRegs.GPR.r[_Rd_].UL[dd * 2] = cpuRegs.LO.UL[dd * 2];
cpuRegs.GPR.r[_Rd_].UL[(dd * 2) + 1] = cpuRegs.HI.UL[dd * 2];
}
}
void PMADDW() {
@ -1083,13 +1096,19 @@ void PSRLVW() {
__fi void _PMSUBW(int dd, int ss)
{
s64 temp = (s64)((s64)cpuRegs.LO.SL[ss] | ((s64)cpuRegs.HI.SL[ss] << 32)) -
((s64)cpuRegs.GPR.r[_Rs_].SL[ss] * (s64)cpuRegs.GPR.r[_Rt_].SL[ss]);
s64 temp = ((s64)cpuRegs.GPR.r[_Rs_].SL[ss] * (s64)cpuRegs.GPR.r[_Rt_].SL[ss]);
s64 temp2 = ((s64)cpuRegs.HI.SL[ss] << 32) - temp;
cpuRegs.LO.SD[dd] = (s32)(temp & 0xffffffff);
cpuRegs.HI.SD[dd] = (s32)(temp >> 32);
temp2 = (s32)(temp2 / 4294967295);
if (_Rd_) cpuRegs.GPR.r[_Rd_].SD[dd] = temp;
cpuRegs.LO.SD[dd] = cpuRegs.LO.SL[ss] - (s32)(temp & 0xffffffff);
cpuRegs.HI.SD[dd] = (s32)temp2;
if (_Rd_)
{
cpuRegs.GPR.r[_Rd_].UL[dd * 2] = cpuRegs.LO.UL[dd * 2];
cpuRegs.GPR.r[_Rd_].UL[(dd * 2) + 1] = cpuRegs.HI.UL[dd * 2];
}
}
void PMSUBW() {