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Core: Improve R4300iOp::COP1_D_CMP

This commit is contained in:
zilmar 2023-04-17 18:07:58 +09:30
parent 0cc6d21ad1
commit d9e69fee65
1 changed files with 15 additions and 1 deletions
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16
Source/Project64-core/N64System/Interpreter/InterpreterOps.cpp
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@ -2841,6 +2841,7 @@ void R4300iOp::COP1_D_CMP()
{
return;
}
_FPCR[31] &= ~0x0003F000;
MIPS_DWORD Temp0, Temp1;
Temp0.DW = *(int64_t *)_FPR_D[m_Opcode.fs];
@ -2852,7 +2853,20 @@ void R4300iOp::COP1_D_CMP()
less = false;
equal = false;
unorded = true;
if ((m_Opcode.funct & 8) != 0)
bool QuietNan = false;
if ((*(uint64_t *)_FPR_D[m_Opcode.fs] >= 0x7FF8000000000000 && *(uint64_t *)_FPR_D[m_Opcode.fs] <= 0x7FFFFFFFFFFFFFFF) ||
(*(uint64_t *)_FPR_D[m_Opcode.fs] >= 0xFFF8000000000000 && *(uint64_t *)_FPR_D[m_Opcode.fs] <= 0xFFFFFFFFFFFFFFFF))
{
QuietNan = true;
}
else if ((*(uint64_t *)_FPR_D[m_Opcode.ft] >= 0x7FF8000000000000 && *(uint64_t *)_FPR_D[m_Opcode.ft] <= 0x7FFFFFFFFFFFFFFF) ||
(*(uint64_t *)_FPR_D[m_Opcode.ft] >= 0xFFF8000000000000 && *(uint64_t *)_FPR_D[m_Opcode.ft] <= 0xFFFFFFFFFFFFFFFF))
{
QuietNan = true;
}
if ((m_Opcode.funct & 8) != 0 || QuietNan)
{
FPStatusReg & StatusReg = (FPStatusReg &)_FPCR[31];
StatusReg.Cause.InvalidOperation = 1;