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Interpreter_FloatingPoint: Set FPSCR.VXSNAN if the input to frsqrte is a signaling NaN

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If the input is a signaling NaN, then we need to signal that via setting
the FPSCR.VXSNAN bit. We also shouldn't update the FPRF flags if
FPSCR.VE is set.
This commit is contained in:
Lioncash 2018-05-24 14:37:05 -04:00
parent 31504f85a7
commit 155bcb1649
1 changed files with 7 additions and 0 deletions
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7
Source/Core/Core/PowerPC/Interpreter/Interpreter_FloatingPoint.cpp
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@ -427,6 +427,13 @@ void Interpreter::frsqrtex(UGeckoInstruction inst)
if (FPSCR.ZE == 0) if (FPSCR.ZE == 0)
PowerPC::UpdateFPRF(result); PowerPC::UpdateFPRF(result);
} }
else if (Common::IsSNAN(b))
{
SetFPException(FPSCR_VXSNAN);
if (FPSCR.VE == 0)
PowerPC::UpdateFPRF(result);
}
else else
{ {
PowerPC::UpdateFPRF(result); PowerPC::UpdateFPRF(result);