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Update SoftFloat.cs

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LDj3SNuD 2018-11-10 16:32:43 +01:00 • committed by GitHub
parent b5ac3ff57f
commit 961685901e
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74
ChocolArm64/Instructions/SoftFloat.cs
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@ -789,6 +789,43 @@ namespace ChocolArm64.Instructions
return result;
}
public static int FPCompare(float value1, float value2, bool signalNaNs, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat32.FPCompare: state.Fpcr = 0x{state.Fpcr:X8}");
value1 = value1.FPUnpack(out FpType type1, out bool sign1, out _, state);
value2 = value2.FPUnpack(out FpType type2, out bool sign2, out _, state);
int result;
if (type1 == FpType.SNaN || type1 == FpType.QNaN || type2 == FpType.SNaN || type2 == FpType.QNaN)
{
result = 0b0011;
if (type1 == FpType.SNaN || type2 == FpType.SNaN || signalNaNs)
{
FPProcessException(FpExc.InvalidOp, state);
}
}
else
{
if (value1 == value2)
{
result = 0b0110;
}
else if (value1 < value2)
{
result = 0b1000;
}
else
{
result = 0b0010;
}
}
return result;
}
public static float FPDiv(float value1, float value2, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat32.FPDiv: state.Fpcr = 0x{state.Fpcr:X8}");
@ -1584,6 +1621,43 @@ namespace ChocolArm64.Instructions
return result;
}
public static int FPCompare(double value1, double value2, bool signalNaNs, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat64.FPCompare: state.Fpcr = 0x{state.Fpcr:X8}");
value1 = value1.FPUnpack(out FpType type1, out bool sign1, out _, state);
value2 = value2.FPUnpack(out FpType type2, out bool sign2, out _, state);
int result;
if (type1 == FpType.SNaN || type1 == FpType.QNaN || type2 == FpType.SNaN || type2 == FpType.QNaN)
{
result = 0b0011;
if (type1 == FpType.SNaN || type2 == FpType.SNaN || signalNaNs)
{
FPProcessException(FpExc.InvalidOp, state);
}
}
else
{
if (value1 == value2)
{
result = 0b0110;
}
else if (value1 < value2)
{
result = 0b1000;
}
else
{
result = 0b0010;
}
}
return result;
}
public static double FPDiv(double value1, double value2, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat64.FPDiv: state.Fpcr = 0x{state.Fpcr:X8}");