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interp: Correct prefixes for vsbn/vsbz.

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Unknown W. Brackets 2019-03-16 10:05:48 -07:00
parent 175ceef583
commit f2be0cb083
1 changed files with 29 additions and 32 deletions
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61
Core/MIPS/MIPSIntVFPU.cpp
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@ -2000,64 +2000,61 @@ namespace MIPSInt
EatPrefixes(); EatPrefixes();
} }
void Int_Vsbn(MIPSOpcode op) void Int_Vsbn(MIPSOpcode op) {
{ FloatBits d, s, t;
int vd = _VD; int vd = _VD;
int vs = _VS; int vs = _VS;
int vt = _VT; int vt = _VT;
VectorSize sz = GetVecSize(op); VectorSize sz = GetVecSize(op);
FloatBits d;
FloatBits s;
u8 exp = (u8)(127 + VI(vt));
ReadVector(s.f, sz, vs); ReadVector(s.f, sz, vs);
// TODO: Test swizzle, t?
ApplySwizzleS(s.f, sz); ApplySwizzleS(s.f, sz);
ReadVector(t.f, sz, vs);
ApplySwizzleT(t.f, sz);
// Swizzle does apply to the value read as an integer.
u8 exp = (u8)(127 + t.i[0]);
if (sz != V_Single) { // Simply replace the exponent bits.
ERROR_LOG_REPORT(CPU, "vsbn not implemented for size %d", GetNumVectorElements(sz)); u32 prev = s.u[0] & 0x7F800000;
if (prev != 0 && prev != 0x7F800000) {
d.u[0] = (s.u[0] & ~0x7F800000) | (exp << 23);
} else {
d.u[0] = s.u[0];
} }
for (int i = 0; i < GetNumVectorElements(sz); ++i) {
// Simply replace the exponent bits. // If sz is greater than V_Single, the rest are unchanged.
u32 prev = s.u[i] & 0x7F800000; for (int i = 1; i < GetNumVectorElements(sz); ++i) {
if (prev != 0 && prev != 0x7F800000) { d.u[i] = s.u[i];
d.u[i] = (s.u[i] & ~0x7F800000) | (exp << 23);
} else {
d.u[i] = s.u[i];
}
} }
ApplyPrefixD(d.f, sz); ApplyPrefixD(d.f, sz);
WriteVector(d.f, sz, vd); WriteVector(d.f, sz, vd);
PC += 4; PC += 4;
EatPrefixes(); EatPrefixes();
} }
void Int_Vsbz(MIPSOpcode op) void Int_Vsbz(MIPSOpcode op) {
{
// Vector scale by zero (set exp to 0 to extract mantissa) // Vector scale by zero (set exp to 0 to extract mantissa)
FloatBits d, s;
int vd = _VD; int vd = _VD;
int vs = _VS; int vs = _VS;
VectorSize sz = GetVecSize(op); VectorSize sz = GetVecSize(op);
FloatBits d;
FloatBits s;
ReadVector(s.f, sz, vs); ReadVector(s.f, sz, vs);
// TODO: Test swizzle, t?
ApplySwizzleS(s.f, sz); ApplySwizzleS(s.f, sz);
if (sz != V_Single) { // NAN and denormals pass through.
ERROR_LOG_REPORT(CPU, "vsbz not implemented for size %d", GetNumVectorElements(sz)); if (my_isnan(s.f[0]) || (s.u[0] & 0x7F800000) == 0) {
d.u[0] = s.u[0];
} else {
d.u[0] = (127 << 23) | (s.u[0] & 0x007FFFFF);
} }
for (int i = 0; i < GetNumVectorElements(sz); ++i) {
// NAN and denormals pass through. // If sz is greater than V_Single, the rest are unchanged.
if (my_isnan(s.f[i]) || (s.u[i] & 0x7F800000) == 0) { for (int i = 1; i < GetNumVectorElements(sz); ++i) {
d.u[i] = s.u[i]; d.u[i] = s.u[i];
} else {
d.u[i] = (127 << 23) | (s.u[i] & 0x007FFFFF);
}
} }
ApplyPrefixD(d.f, sz); ApplyPrefixD(d.f, sz);
WriteVector(d.f, sz, vd); WriteVector(d.f, sz, vd);
PC += 4; PC += 4;