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Merge pull request #10040 from JosJuice/simplify-mcrfs

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Interpreter: Simplify mcrfs implementation
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Léo Lam 2021-08-31 15:31:54 +02:00 committed by GitHub
commit c5becb4a7e
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 28 deletions
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34
Source/Core/Core/PowerPC/Interpreter/Interpreter_SystemRegisters.cpp
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@ -565,34 +565,12 @@ void Interpreter::isync(UGeckoInstruction inst)
void Interpreter::mcrfs(UGeckoInstruction inst) void Interpreter::mcrfs(UGeckoInstruction inst)
{ {
UpdateFPSCR(&FPSCR); UpdateFPSCR(&FPSCR);
u32 fpflags = ((FPSCR.Hex >> (4 * (7 - inst.CRFS))) & 0xF); const u32 shift = 4 * (7 - inst.CRFS);
switch (inst.CRFS) const u32 fpflags = (FPSCR.Hex >> shift) & 0xF;
{
case 0: // If any exception bits were read, clear them
FPSCR.FX = 0; FPSCR.Hex &= ~((0xF << shift) & (FPSCR_FX | FPSCR_ANY_X));
FPSCR.OX = 0;
break;
case 1:
FPSCR.UX = 0;
FPSCR.ZX = 0;
FPSCR.XX = 0;
FPSCR.VXSNAN = 0;
break;
case 2:
FPSCR.VXISI = 0;
FPSCR.VXIDI = 0;
FPSCR.VXZDZ = 0;
FPSCR.VXIMZ = 0;
break;
case 3:
FPSCR.VXVC = 0;
break;
case 5:
FPSCR.VXSOFT = 0;
FPSCR.VXSQRT = 0;
FPSCR.VXCVI = 0;
break;
}
PowerPC::ppcState.cr.SetField(inst.CRFD, fpflags); PowerPC::ppcState.cr.SetField(inst.CRFD, fpflags);
} }