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interp: Correct simple vmov variant prefixing.

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Unknown W. Brackets committed 2019-03-31 15:01:28 -07:00
1 parent 01aebe54b9
commit fa7ac7bc64
1 file changed
+19 -10
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Core/MIPS/MIPSIntVFPU.cpp
+19 -10
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@@ -538,21 +538,29 @@ namespace MIPSInt
EatPrefixes();
}
void Int_VV2Op(MIPSOpcode op)
{
void Int_VV2Op(MIPSOpcode op) {
float s[4], d[4];
int vd = _VD;
int vs = _VS;
int optype = (op >> 16) & 0x1f;
VectorSize sz = GetVecSize(op);
ReadVector(s, sz, vs);
ApplySwizzleS(s, sz);
for (int i = 0; i < GetNumVectorElements(sz); i++)
{
switch ((op >> 16) & 0x1f)
{
// Some of these are prefix hacks (affects constants, etc.)
switch (optype) {
case 1:
ApplyPrefixST(s, VFPURewritePrefix(VFPU_CTRL_SPREFIX, 0, VFPU_ABS(1, 1, 1, 1)), sz);
break;
case 2:
ApplyPrefixST(s, VFPURewritePrefix(VFPU_CTRL_SPREFIX, 0, VFPU_NEGATE(1, 1, 1, 1)), sz);
break;
default:
ApplySwizzleS(s, sz);
}
for (int i = 0; i < GetNumVectorElements(sz); i++) {
switch (optype) {
case 0: d[i] = s[i]; break; //vmov
case 1: d[i] = fabsf(s[i]); break; //vabs
case 2: d[i] = -s[i]; break; //vneg
case 1: d[i] = s[i]; break; //vabs (prefix)
case 2: d[i] = s[i]; break; //vneg (prefix)
// vsat0 changes -0.0 to +0.0, both retain NAN.
case 4: if (s[i] <= 0) d[i] = 0; else {if(s[i] > 1.0f) d[i] = 1.0f; else d[i] = s[i];} break; // vsat0
case 5: if (s[i] < -1.0f) d[i] = -1.0f; else {if(s[i] > 1.0f) d[i] = 1.0f; else d[i] = s[i];} break; // vsat1
@@ -573,7 +581,8 @@ namespace MIPSInt
break;
}
}
ApplyPrefixD(d, sz);
// vsat1 is a prefix hack, so 0:1 doesn't apply.
ApplyPrefixD(d, sz, optype == 5);
WriteVector(d, sz, vd);
PC += 4;
EatPrefixes();