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Core: Improve R4300iOp::COP1_S_CMP

This commit is contained in:
zilmar 2023-04-17 18:06:42 +09:30
parent ebe0ee903c
commit 0cc6d21ad1
1 changed files with 14 additions and 1 deletions
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15
Source/Project64-core/N64System/Interpreter/InterpreterOps.cpp
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@ -2396,6 +2396,7 @@ void R4300iOp::COP1_S_CMP()
return; return;
} }
_FPCR[31] &= ~0x0003F000;
float Temp0 = *(float *)_FPR_S[m_Opcode.fs]; float Temp0 = *(float *)_FPR_S[m_Opcode.fs];
float Temp1 = *(float *)_FPR_S[m_Opcode.ft]; float Temp1 = *(float *)_FPR_S[m_Opcode.ft];
@ -2405,7 +2406,19 @@ void R4300iOp::COP1_S_CMP()
less = false; less = false;
equal = false; equal = false;
unorded = true; unorded = true;
if ((m_Opcode.funct & 8) != 0)
bool QuietNan = false;
if ((*(uint32_t *)_FPR_S[m_Opcode.fs] >= 0x7FC00000 && *(uint32_t *)_FPR_S[m_Opcode.fs] <= 0x7FFFFFFF) ||
(*(uint32_t *)_FPR_S[m_Opcode.fs] >= 0xFFC00000 && *(uint32_t *)_FPR_S[m_Opcode.fs] <= 0xFFFFFFFF))
{
QuietNan = true;
}
else if ((*(uint32_t *)_FPR_S[m_Opcode.ft] >= 0x7FC00000 && *(uint32_t *)_FPR_S[m_Opcode.ft] <= 0x7FFFFFFF) ||
(*(uint32_t *)_FPR_S[m_Opcode.ft] >= 0xFFC00000 && *(uint32_t *)_FPR_S[m_Opcode.ft] <= 0xFFFFFFFF))
{
QuietNan = true;
}
if ((m_Opcode.funct & 8) != 0 || QuietNan)
{ {
FPStatusReg & StatusReg = (FPStatusReg &)_FPCR[31]; FPStatusReg & StatusReg = (FPStatusReg &)_FPCR[31];
StatusReg.Cause.InvalidOperation = 1; StatusReg.Cause.InvalidOperation = 1;