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microVU: Use uncached reg when clamping for FMAC instructions

This commit is contained in:
Connor McLaughlin 2021-10-17 18:05:31 +10:00 committed by refractionpcsx2
parent 9044531a80
commit 44bc273590
1 changed files with 11 additions and 8 deletions
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19
pcsx2/x86/microVU_Upper.inl
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@ -200,13 +200,16 @@ static bool doSafeSub(microVU& mVU, int opCase, int opType, bool isACC)
}
// Sets Up Ft Reg for Normal, BC, I, and Q Cases
static void setupFtReg(microVU& mVU, xmm& Ft, xmm& tempFt, int opCase)
static void setupFtReg(microVU& mVU, xmm& Ft, xmm& tempFt, int opCase, int clampType)
{
opCase1
{
if (_XYZW_SS2) { Ft = mVU.regAlloc->allocReg(_Ft_, 0, _X_Y_Z_W); tempFt = Ft; }
else if (clampE) { Ft = mVU.regAlloc->allocReg(_Ft_, 0, 0xf); tempFt = Ft; }
else { Ft = mVU.regAlloc->allocReg(_Ft_); tempFt = xEmptyReg; }
// Based on mVUclamp2 -> mVUclamp1 below.
const bool willClamp = (clampE || ((clampType & cFt) && !clampE && (CHECK_VU_OVERFLOW || CHECK_VU_SIGN_OVERFLOW)));
if (_XYZW_SS2) { Ft = mVU.regAlloc->allocReg(_Ft_, 0, _X_Y_Z_W); tempFt = Ft; }
else if (willClamp) { Ft = mVU.regAlloc->allocReg(_Ft_, 0, 0xf); tempFt = Ft; }
else { Ft = mVU.regAlloc->allocReg(_Ft_); tempFt = xEmptyReg; }
}
opCase2
{
@ -247,7 +250,7 @@ static void mVU_FMACa(microVU& mVU, int recPass, int opCase, int opType, bool is
return;
xmm Fs, Ft, ACC, tempFt;
setupFtReg(mVU, Ft, tempFt, opCase);
setupFtReg(mVU, Ft, tempFt, opCase, clampType);
if (isACC)
{
@ -300,7 +303,7 @@ static void mVU_FMACb(microVU& mVU, int recPass, int opCase, int opType, microOp
pass2
{
xmm Fs, Ft, ACC, tempFt;
setupFtReg(mVU, Ft, tempFt, opCase);
setupFtReg(mVU, Ft, tempFt, opCase, clampType);
Fs = mVU.regAlloc->allocReg(_Fs_, 0, _X_Y_Z_W);
ACC = mVU.regAlloc->allocReg(32, 32, 0xf, false);
@ -348,7 +351,7 @@ static void mVU_FMACc(microVU& mVU, int recPass, int opCase, microOpcode opEnum,
pass2
{
xmm Fs, Ft, ACC, tempFt;
setupFtReg(mVU, Ft, tempFt, opCase);
setupFtReg(mVU, Ft, tempFt, opCase, clampType);
ACC = mVU.regAlloc->allocReg(32);
Fs = mVU.regAlloc->allocReg(_Fs_, _Fd_, _X_Y_Z_W);
@ -385,7 +388,7 @@ static void mVU_FMACd(microVU& mVU, int recPass, int opCase, microOpcode opEnum,
pass2
{
xmm Fs, Ft, Fd, tempFt;
setupFtReg(mVU, Ft, tempFt, opCase);
setupFtReg(mVU, Ft, tempFt, opCase, clampType);
Fs = mVU.regAlloc->allocReg(_Fs_, 0, _X_Y_Z_W);
Fd = mVU.regAlloc->allocReg(32, _Fd_, _X_Y_Z_W);