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Update SoftFloat.cs

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LDj3SNuD 2018-12-14 02:06:55 +01:00 • committed by GitHub
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186
ChocolArm64/Instructions/SoftFloat.cs
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@ -826,6 +826,94 @@ namespace ChocolArm64.Instructions
return result; return result;
} }
public static float FPCompareEQ(float value1, float value2, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat32.FPCompareEQ: state.Fpcr = 0x{state.Fpcr:X8}");
value1 = value1.FPUnpack(out FpType type1, out _, out _, state);
value2 = value2.FPUnpack(out FpType type2, out _, out _, state);
float result;
if (type1 == FpType.SNaN || type1 == FpType.QNaN || type2 == FpType.SNaN || type2 == FpType.QNaN)
{
result = ZerosOrOnes(false);
if (type1 == FpType.SNaN || type2 == FpType.SNaN)
{
FPProcessException(FpExc.InvalidOp, state);
}
}
else
{
result = ZerosOrOnes(value1 == value2);
}
return result;
}
public static float FPCompareGE(float value1, float value2, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat32.FPCompareGE: state.Fpcr = 0x{state.Fpcr:X8}");
value1 = value1.FPUnpack(out FpType type1, out _, out _, state);
value2 = value2.FPUnpack(out FpType type2, out _, out _, state);
float result;
if (type1 == FpType.SNaN || type1 == FpType.QNaN || type2 == FpType.SNaN || type2 == FpType.QNaN)
{
result = ZerosOrOnes(false);
FPProcessException(FpExc.InvalidOp, state);
}
else
{
result = ZerosOrOnes(value1 >= value2);
}
return result;
}
public static float FPCompareGT(float value1, float value2, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat32.FPCompareGT: state.Fpcr = 0x{state.Fpcr:X8}");
value1 = value1.FPUnpack(out FpType type1, out _, out _, state);
value2 = value2.FPUnpack(out FpType type2, out _, out _, state);
float result;
if (type1 == FpType.SNaN || type1 == FpType.QNaN || type2 == FpType.SNaN || type2 == FpType.QNaN)
{
result = ZerosOrOnes(false);
FPProcessException(FpExc.InvalidOp, state);
}
else
{
result = ZerosOrOnes(value1 > value2);
}
return result;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static float FPCompareLE(float value1, float value2, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat32.FPCompareLE: state.Fpcr = 0x{state.Fpcr:X8}");
return FPCompareGE(value2, value1, state);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static float FPCompareLT(float value1, float value2, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat32.FPCompareLT: state.Fpcr = 0x{state.Fpcr:X8}");
return FPCompareGT(value2, value1, state);
}
public static float FPDiv(float value1, float value2, CpuThreadState state) public static float FPDiv(float value1, float value2, CpuThreadState state)
{ {
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat32.FPDiv: state.Fpcr = 0x{state.Fpcr:X8}"); Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat32.FPDiv: state.Fpcr = 0x{state.Fpcr:X8}");
@ -1417,6 +1505,11 @@ namespace ChocolArm64.Instructions
return -value; return -value;
} }
private static float ZerosOrOnes(bool zeros)
{
return BitConverter.Int32BitsToSingle(!zeros ? 0 : -1);
}
private static float FPUnpack( private static float FPUnpack(
this float value, this float value,
out FpType type, out FpType type,
@ -1658,6 +1751,94 @@ namespace ChocolArm64.Instructions
return result; return result;
} }
public static double FPCompareEQ(double value1, double value2, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat64.FPCompareEQ: state.Fpcr = 0x{state.Fpcr:X8}");
value1 = value1.FPUnpack(out FpType type1, out _, out _, state);
value2 = value2.FPUnpack(out FpType type2, out _, out _, state);
double result;
if (type1 == FpType.SNaN || type1 == FpType.QNaN || type2 == FpType.SNaN || type2 == FpType.QNaN)
{
result = ZerosOrOnes(false);
if (type1 == FpType.SNaN || type2 == FpType.SNaN)
{
FPProcessException(FpExc.InvalidOp, state);
}
}
else
{
result = ZerosOrOnes(value1 == value2);
}
return result;
}
public static double FPCompareGE(double value1, double value2, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat64.FPCompareGE: state.Fpcr = 0x{state.Fpcr:X8}");
value1 = value1.FPUnpack(out FpType type1, out _, out _, state);
value2 = value2.FPUnpack(out FpType type2, out _, out _, state);
double result;
if (type1 == FpType.SNaN || type1 == FpType.QNaN || type2 == FpType.SNaN || type2 == FpType.QNaN)
{
result = ZerosOrOnes(false);
FPProcessException(FpExc.InvalidOp, state);
}
else
{
result = ZerosOrOnes(value1 >= value2);
}
return result;
}
public static double FPCompareGT(double value1, double value2, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat64.FPCompareGT: state.Fpcr = 0x{state.Fpcr:X8}");
value1 = value1.FPUnpack(out FpType type1, out _, out _, state);
value2 = value2.FPUnpack(out FpType type2, out _, out _, state);
double result;
if (type1 == FpType.SNaN || type1 == FpType.QNaN || type2 == FpType.SNaN || type2 == FpType.QNaN)
{
result = ZerosOrOnes(false);
FPProcessException(FpExc.InvalidOp, state);
}
else
{
result = ZerosOrOnes(value1 > value2);
}
return result;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static double FPCompareLE(double value1, double value2, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat64.FPCompareLE: state.Fpcr = 0x{state.Fpcr:X8}");
return FPCompareGE(value2, value1, state);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static double FPCompareLT(double value1, double value2, CpuThreadState state)
{
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat64.FPCompareLT: state.Fpcr = 0x{state.Fpcr:X8}");
return FPCompareGT(value2, value1, state);
}
public static double FPDiv(double value1, double value2, CpuThreadState state) public static double FPDiv(double value1, double value2, CpuThreadState state)
{ {
Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat64.FPDiv: state.Fpcr = 0x{state.Fpcr:X8}"); Debug.WriteLineIf(state.Fpcr != 0, $"SoftFloat64.FPDiv: state.Fpcr = 0x{state.Fpcr:X8}");
@ -2249,6 +2430,11 @@ namespace ChocolArm64.Instructions
return -value; return -value;
} }
private static double ZerosOrOnes(bool zeros)
{
return BitConverter.Int64BitsToDouble(!zeros ? 0L : -1L);
}
private static double FPUnpack( private static double FPUnpack(
this double value, this double value,
out FpType type, out FpType type,