diff options
Diffstat (limited to 'ChocolArm64/Instruction/ASoftFallback.cs')
| -rw-r--r-- | ChocolArm64/Instruction/ASoftFallback.cs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/ChocolArm64/Instruction/ASoftFallback.cs b/ChocolArm64/Instruction/ASoftFallback.cs index a57966ba..5127182d 100644 --- a/ChocolArm64/Instruction/ASoftFallback.cs +++ b/ChocolArm64/Instruction/ASoftFallback.cs @@ -189,6 +189,32 @@ namespace ChocolArm64.Instruction (Value >> 6) & 1 + (Value >> 7); } + public static float RoundF(float Value, int Fpcr) + { + switch ((ARoundMode)((Fpcr >> 22) & 3)) + { + case ARoundMode.ToNearest: return MathF.Round (Value); + case ARoundMode.TowardsPlusInfinity: return MathF.Ceiling (Value); + case ARoundMode.TowardsMinusInfinity: return MathF.Floor (Value); + case ARoundMode.TowardsZero: return MathF.Truncate(Value); + } + + throw new InvalidOperationException(); + } + + public static double Round(double Value, int Fpcr) + { + switch ((ARoundMode)((Fpcr >> 22) & 3)) + { + case ARoundMode.ToNearest: return Math.Round (Value); + case ARoundMode.TowardsPlusInfinity: return Math.Ceiling (Value); + case ARoundMode.TowardsMinusInfinity: return Math.Floor (Value); + case ARoundMode.TowardsZero: return Math.Truncate(Value); + } + + throw new InvalidOperationException(); + } + public static AVec Tbl1_V64(AVec Vector, AVec Tb0) { return Tbl(Vector, 8, Tb0); |
