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Fix vcmpbfp returning that the value is out of bounds for values equal to the bounds.

This commit is contained in:
Dr. Chat 2015-11-06 19:04:59 -06:00
parent 35a9697af7
commit abf37ed9be
1 changed files with 6 additions and 6 deletions
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12
src/xenia/cpu/frontend/ppc_emit_altivec.cc
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@ -597,20 +597,20 @@ int InstrEmit_vcmpbfp_(PPCHIRBuilder& f, InstrData& i, uint32_t vd, uint32_t va,
// if vA or vB are NaN, the 2 high-order bits are set (0xC0000000) // if vA or vB are NaN, the 2 high-order bits are set (0xC0000000)
Value* va_value = f.LoadVR(va); Value* va_value = f.LoadVR(va);
Value* vb_value = f.LoadVR(vb); Value* vb_value = f.LoadVR(vb);
Value* ge = f.VectorCompareSGE(va_value, vb_value, FLOAT32_TYPE); Value* gt = f.VectorCompareSGT(va_value, vb_value, FLOAT32_TYPE);
Value* le = Value* lt =
f.Not(f.VectorCompareSGT(va_value, f.Neg(vb_value), FLOAT32_TYPE)); f.Not(f.VectorCompareSGE(va_value, f.Neg(vb_value), FLOAT32_TYPE));
Value* v = Value* v =
f.Or(f.And(ge, f.LoadConstantVec128(vec128i(0x80000000, 0x80000000, f.Or(f.And(gt, f.LoadConstantVec128(vec128i(0x80000000, 0x80000000,
0x80000000, 0x80000000))), 0x80000000, 0x80000000))),
f.And(le, f.LoadConstantVec128(vec128i(0x40000000, 0x40000000, f.And(lt, f.LoadConstantVec128(vec128i(0x40000000, 0x40000000,
0x40000000, 0x40000000)))); 0x40000000, 0x40000000))));
f.StoreVR(vd, v); f.StoreVR(vd, v);
if (rc) { if (rc) {
// CR0:4 = 0; CR0:5 = VT == 0; CR0:6 = CR0:7 = 0; // CR0:4 = 0; CR0:5 = VT == 0; CR0:6 = CR0:7 = 0;
// If all of the elements are within bounds, CR6[2] is set // If all of the elements are within bounds, CR6[2] is set
// FIXME: Does not affect CR6[0], but the following function does. // FIXME: Does not affect CR6[0], but the following function does.
f.UpdateCR6(f.Or(ge, le)); f.UpdateCR6(f.Or(gt, lt));
} }
return 0; return 0;
} }