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microVU: Remove SSE4 op from Overflow flag checks + clean up the code

This commit is contained in:
refractionpcsx2 2021-02-28 01:20:38 +00:00
parent cc9c3a2a28
commit f9d96f55a5
1 changed files with 6 additions and 4 deletions
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10
pcsx2/x86/microVU_Upper.inl
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@ -73,18 +73,20 @@ static void mVUupdateFlags(mV, const xmm& reg, const xmm& regT1in = xEmptyReg, c
if (mFLAG.doFlag) { SHIFT_XYZW(gprT2); }
xOR(mReg, gprT2);
//-------------------------Overflow Flags-----------------------------------
if (sFLAG.doFlag) {
//Calculate overflow
xMOVAPS(regT1, regT2);
xAND.PS(regT1, ptr128[&sse4_compvals[1][0]]); // Remove sign flags (we don't care)
xPMIN.UD(regT1, ptr128[&sse4_compvals[0][0]]); // Get the minimum value, FLT_MAX = overflow
xCMPEQ.PS(regT1, ptr128[&sse4_compvals[0][0]]); // Compare if T1 == FLT_MAX
xCMPNLT.PS(regT1, ptr128[&sse4_compvals[0][0]]); // Compare if T1 == FLT_MAX
xMOVMSKPS(gprT2, regT1); // Grab sign bits for equal results
xAND(gprT2, AND_XYZW); // Grab "Is Zero" bits from the previous calculation
xTEST(gprT2, 0xF);
xAND(gprT2, AND_XYZW); // Grab "Is FLT_MAX" bits from the previous calculation
xForwardJump32 oJMP(Jcc_Zero);
xOR(sReg, 0x820000);
oJMP.SetTarget();
xSHL(gprT2, 8 + ADD_XYZW); // Add the results to the MAC Flag
xOR(mReg, gprT2);
}
//-------------------------Write back flags------------------------------