2018-02-04 18:08:20 -05:00
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using ChocolArm64.State;
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using ChocolArm64.Translation;
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using System;
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namespace ChocolArm64.Instruction
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{
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static class ASoftFallback
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{
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public static void EmitCall(AILEmitterCtx Context, string Name64, string Name128)
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{
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bool IsSimd64 = Context.CurrOp.RegisterSize == ARegisterSize.SIMD64;
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Context.EmitCall(typeof(ASoftFallback), IsSimd64 ? Name64 : Name128);
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}
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public static void EmitCall(AILEmitterCtx Context, string MthdName)
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{
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Context.EmitCall(typeof(ASoftFallback), MthdName);
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}
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public static uint CountLeadingZeros32(uint Value) => (uint)CountLeadingZeros(Value, 32);
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public static ulong CountLeadingZeros64(ulong Value) => (ulong)CountLeadingZeros(Value, 64);
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private static ulong CountLeadingZeros(ulong Value, int Size)
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{
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int HighBit = Size - 1;
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for (int Bit = HighBit; Bit >= 0; Bit--)
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{
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if (((Value >> Bit) & 1) != 0)
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{
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return (ulong)(HighBit - Bit);
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}
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}
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return (ulong)Size;
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}
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public static uint ReverseBits32(uint Value)
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{
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Value = ((Value & 0xaaaaaaaa) >> 1) | ((Value & 0x55555555) << 1);
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Value = ((Value & 0xcccccccc) >> 2) | ((Value & 0x33333333) << 2);
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Value = ((Value & 0xf0f0f0f0) >> 4) | ((Value & 0x0f0f0f0f) << 4);
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Value = ((Value & 0xff00ff00) >> 8) | ((Value & 0x00ff00ff) << 8);
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return (Value >> 16) | (Value << 16);
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}
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public static ulong ReverseBits64(ulong Value)
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{
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Value = ((Value & 0xaaaaaaaaaaaaaaaa) >> 1) | ((Value & 0x5555555555555555) << 1);
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Value = ((Value & 0xcccccccccccccccc) >> 2) | ((Value & 0x3333333333333333) << 2);
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Value = ((Value & 0xf0f0f0f0f0f0f0f0) >> 4) | ((Value & 0x0f0f0f0f0f0f0f0f) << 4);
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Value = ((Value & 0xff00ff00ff00ff00) >> 8) | ((Value & 0x00ff00ff00ff00ff) << 8);
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Value = ((Value & 0xffff0000ffff0000) >> 16) | ((Value & 0x0000ffff0000ffff) << 16);
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return (Value >> 32) | (Value << 32);
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}
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public static uint ReverseBytes16_32(uint Value) => (uint)ReverseBytes16_64(Value);
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public static uint ReverseBytes32_32(uint Value) => (uint)ReverseBytes32_64(Value);
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public static ulong ReverseBytes16_64(ulong Value) => ReverseBytes(Value, RevSize.Rev16);
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public static ulong ReverseBytes32_64(ulong Value) => ReverseBytes(Value, RevSize.Rev32);
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public static ulong ReverseBytes64(ulong Value) => ReverseBytes(Value, RevSize.Rev64);
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private enum RevSize
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{
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Rev16,
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Rev32,
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Rev64
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}
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private static ulong ReverseBytes(ulong Value, RevSize Size)
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{
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Value = ((Value & 0xff00ff00ff00ff00) >> 8) | ((Value & 0x00ff00ff00ff00ff) << 8);
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if (Size == RevSize.Rev16)
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{
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return Value;
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}
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Value = ((Value & 0xffff0000ffff0000) >> 16) | ((Value & 0x0000ffff0000ffff) << 16);
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if (Size == RevSize.Rev32)
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{
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return Value;
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}
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Value = ((Value & 0xffffffff00000000) >> 32) | ((Value & 0x00000000ffffffff) << 32);
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if (Size == RevSize.Rev64)
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{
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return Value;
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}
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throw new ArgumentException(nameof(Size));
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}
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2018-02-11 22:37:20 -05:00
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public static int SatSingleToInt32(float Value, int FBits)
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2018-02-04 18:08:20 -05:00
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{
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2018-02-11 22:37:20 -05:00
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if (FBits != 0) Value *= MathF.Pow(2, FBits);
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2018-02-04 18:08:20 -05:00
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return Value > int.MaxValue ? int.MaxValue :
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Value < int.MinValue ? int.MinValue : (int)Value;
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}
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2018-02-11 22:37:20 -05:00
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public static long SatSingleToInt64(float Value, int FBits)
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2018-02-04 18:08:20 -05:00
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{
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2018-02-11 22:37:20 -05:00
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if (FBits != 0) Value *= MathF.Pow(2, FBits);
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2018-02-04 18:08:20 -05:00
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return Value > long.MaxValue ? long.MaxValue :
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Value < long.MinValue ? long.MinValue : (long)Value;
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}
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2018-02-11 22:37:20 -05:00
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public static uint SatSingleToUInt32(float Value, int FBits)
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2018-02-04 18:08:20 -05:00
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{
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2018-02-11 22:37:20 -05:00
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if (FBits != 0) Value *= MathF.Pow(2, FBits);
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2018-02-04 18:08:20 -05:00
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return Value > uint.MaxValue ? uint.MaxValue :
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Value < uint.MinValue ? uint.MinValue : (uint)Value;
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}
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2018-02-11 22:37:20 -05:00
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public static ulong SatSingleToUInt64(float Value, int FBits)
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2018-02-04 18:08:20 -05:00
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{
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2018-02-11 22:37:20 -05:00
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if (FBits != 0) Value *= MathF.Pow(2, FBits);
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2018-02-04 18:08:20 -05:00
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return Value > ulong.MaxValue ? ulong.MaxValue :
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Value < ulong.MinValue ? ulong.MinValue : (ulong)Value;
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}
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2018-02-11 22:37:20 -05:00
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public static int SatDoubleToInt32(double Value, int FBits)
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2018-02-04 18:08:20 -05:00
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{
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2018-02-11 22:37:20 -05:00
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if (FBits != 0) Value *= Math.Pow(2, FBits);
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2018-02-04 18:08:20 -05:00
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return Value > int.MaxValue ? int.MaxValue :
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Value < int.MinValue ? int.MinValue : (int)Value;
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}
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2018-02-11 22:37:20 -05:00
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public static long SatDoubleToInt64(double Value, int FBits)
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2018-02-04 18:08:20 -05:00
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{
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2018-02-11 22:37:20 -05:00
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if (FBits != 0) Value *= Math.Pow(2, FBits);
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2018-02-04 18:08:20 -05:00
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return Value > long.MaxValue ? long.MaxValue :
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Value < long.MinValue ? long.MinValue : (long)Value;
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}
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2018-02-11 22:37:20 -05:00
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public static uint SatDoubleToUInt32(double Value, int FBits)
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2018-02-04 18:08:20 -05:00
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{
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2018-02-11 22:37:20 -05:00
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if (FBits != 0) Value *= Math.Pow(2, FBits);
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2018-02-04 18:08:20 -05:00
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return Value > uint.MaxValue ? uint.MaxValue :
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Value < uint.MinValue ? uint.MinValue : (uint)Value;
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}
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2018-02-11 22:37:20 -05:00
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public static ulong SatDoubleToUInt64(double Value, int FBits)
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2018-02-04 18:08:20 -05:00
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{
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2018-02-11 22:37:20 -05:00
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if (FBits != 0) Value *= Math.Pow(2, FBits);
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2018-02-04 18:08:20 -05:00
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return Value > ulong.MaxValue ? ulong.MaxValue :
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Value < ulong.MinValue ? ulong.MinValue : (ulong)Value;
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}
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2018-02-11 22:37:20 -05:00
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public static float Int32ToSingle(int Value, int FBits)
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{
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float ValueF = Value;
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if (FBits != 0) ValueF *= 1 / MathF.Pow(2, FBits);
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return ValueF;
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}
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public static float Int64ToSingle(long Value, int FBits)
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{
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float ValueF = Value;
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if (FBits != 0) ValueF *= 1 / MathF.Pow(2, FBits);
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return ValueF;
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}
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public static float UInt32ToSingle(uint Value, int FBits)
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{
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float ValueF = Value;
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if (FBits != 0) ValueF *= 1 / MathF.Pow(2, FBits);
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return ValueF;
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}
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public static float UInt64ToSingle(ulong Value, int FBits)
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{
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float ValueF = Value;
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if (FBits != 0) ValueF *= 1 / MathF.Pow(2, FBits);
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return ValueF;
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}
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2018-02-13 21:43:08 -05:00
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public static double Int32ToDouble(int Value, int FBits)
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{
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2018-02-13 21:43:08 -05:00
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double ValueF = Value;
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2018-02-11 22:37:20 -05:00
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2018-02-13 21:43:08 -05:00
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if (FBits != 0) ValueF *= 1 / Math.Pow(2, FBits);
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2018-02-11 22:37:20 -05:00
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return ValueF;
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}
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2018-02-13 21:43:08 -05:00
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public static double Int64ToDouble(long Value, int FBits)
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{
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2018-02-13 21:43:08 -05:00
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double ValueF = Value;
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2018-02-11 22:37:20 -05:00
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2018-02-13 21:43:08 -05:00
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if (FBits != 0) ValueF *= 1 / Math.Pow(2, FBits);
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2018-02-11 22:37:20 -05:00
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return ValueF;
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}
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2018-02-13 21:43:08 -05:00
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public static double UInt32ToDouble(uint Value, int FBits)
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2018-02-11 22:37:20 -05:00
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{
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2018-02-13 21:43:08 -05:00
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double ValueF = Value;
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2018-02-11 22:37:20 -05:00
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2018-02-13 21:43:08 -05:00
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if (FBits != 0) ValueF *= 1 / Math.Pow(2, FBits);
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2018-02-11 22:37:20 -05:00
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return ValueF;
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}
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2018-02-13 21:43:08 -05:00
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public static double UInt64ToDouble(ulong Value, int FBits)
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2018-02-11 22:37:20 -05:00
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{
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2018-02-13 21:43:08 -05:00
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double ValueF = Value;
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2018-02-11 22:37:20 -05:00
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2018-02-13 21:43:08 -05:00
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if (FBits != 0) ValueF *= 1 / Math.Pow(2, FBits);
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2018-02-11 22:37:20 -05:00
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return ValueF;
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}
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2018-02-04 18:08:20 -05:00
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public static ulong SMulHi128(ulong LHS, ulong RHS)
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{
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long LLo = (uint)(LHS >> 0);
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long LHi = (int)(LHS >> 32);
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long RLo = (uint)(RHS >> 0);
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long RHi = (int)(RHS >> 32);
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long LHiRHi = LHi * RHi;
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long LHiRLo = LHi * RLo;
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long LLoRHi = LLo * RHi;
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long LLoRLo = LLo * RLo;
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long Carry = ((uint)LHiRLo + ((uint)LLoRHi + (LLoRLo >> 32))) >> 32;
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long ResHi = LHiRHi + (LHiRLo >> 32) + (LLoRHi >> 32) + Carry;
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return (ulong)ResHi;
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}
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public static ulong UMulHi128(ulong LHS, ulong RHS)
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{
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ulong LLo = (uint)(LHS >> 0);
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ulong LHi = (uint)(LHS >> 32);
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ulong RLo = (uint)(RHS >> 0);
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ulong RHi = (uint)(RHS >> 32);
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ulong LHiRHi = LHi * RHi;
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ulong LHiRLo = LHi * RLo;
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ulong LLoRHi = LLo * RHi;
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ulong LLoRLo = LLo * RLo;
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ulong Carry = ((uint)LHiRLo + ((uint)LLoRHi + (LLoRLo >> 32))) >> 32;
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ulong ResHi = LHiRHi + (LHiRLo >> 32) + (LLoRHi >> 32) + Carry;
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return ResHi;
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}
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public static AVec Addp_S(AVec Vector, int Size)
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{
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ulong Low = ExtractVec(Vector, 0, Size);
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ulong High = ExtractVec(Vector, 1, Size);
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return InsertVec(new AVec(), 0, Size, Low + High);
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}
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2018-02-14 23:32:25 -05:00
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public static int CountSetBits8(byte Value)
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2018-02-04 18:08:20 -05:00
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{
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return (Value >> 0) & 1 + (Value >> 1) & 1 +
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(Value >> 2) & 1 + (Value >> 3) & 1 +
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(Value >> 4) & 1 + (Value >> 5) & 1 +
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(Value >> 6) & 1 + (Value >> 7);
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}
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public static AVec Dup_Gp64(ulong Value, int Size)
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{
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return Dup_Gp(Value, Size, 8);
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}
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public static AVec Dup_Gp128(ulong Value, int Size)
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{
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return Dup_Gp(Value, Size, 16);
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}
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private static AVec Dup_Gp(ulong Value, int Size, int Bytes)
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{
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AVec Res = new AVec();
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for (int Index = 0; Index < (Bytes >> Size); Index++)
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{
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Res = InsertVec(Res, Index, Size, Value);
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}
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return Res;
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}
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public static AVec Dup_S(AVec Vector, int Elem, int Size)
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{
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return InsertVec(new AVec(), 0, Size, ExtractVec(Vector, Elem, Size));
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}
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public static AVec Fmov_S(ulong Value, int Elem, int Size)
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{
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return InsertVec(new AVec(), Elem, Size, Value);
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}
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public static AVec Tbl1_V64(AVec Vector, AVec Tb0)
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{
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return Tbl(Vector, 8, Tb0);
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}
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public static AVec Tbl1_V128(AVec Vector, AVec Tb0)
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{
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return Tbl(Vector, 16, Tb0);
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}
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public static AVec Tbl2_V64(AVec Vector, AVec Tb0, AVec Tb1)
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{
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return Tbl(Vector, 8, Tb0, Tb1);
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}
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public static AVec Tbl2_V128(AVec Vector, AVec Tb0, AVec Tb1)
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{
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return Tbl(Vector, 16, Tb0, Tb1);
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}
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public static AVec Tbl3_V64(AVec Vector, AVec Tb0, AVec Tb1, AVec Tb2)
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{
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return Tbl(Vector, 8, Tb0, Tb1, Tb2);
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}
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public static AVec Tbl3_V128(AVec Vector, AVec Tb0, AVec Tb1, AVec Tb2)
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{
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return Tbl(Vector, 16, Tb0, Tb1, Tb2);
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}
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public static AVec Tbl4_V64(AVec Vector, AVec Tb0, AVec Tb1, AVec Tb2, AVec Tb3)
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{
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return Tbl(Vector, 8, Tb0, Tb1, Tb2, Tb3);
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}
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public static AVec Tbl4_V128(AVec Vector, AVec Tb0, AVec Tb1, AVec Tb2, AVec Tb3)
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{
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return Tbl(Vector, 16, Tb0, Tb1, Tb2, Tb3);
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}
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private static AVec Tbl(AVec Vector, int Bytes, params AVec[] Tb)
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{
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AVec Res = new AVec();
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byte[] Table = new byte[Tb.Length * 16];
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for (int Index = 0; Index < Tb.Length; Index++)
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for (int Index2 = 0; Index2 < 16; Index2++)
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{
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Table[Index * 16 + Index2] = (byte)ExtractVec(Tb[Index], Index2, 0);
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}
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for (int Index = 0; Index < Bytes; Index++)
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{
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byte TblIdx = (byte)ExtractVec(Vector, Index, 0);
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if (TblIdx < Table.Length)
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{
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Res = InsertVec(Res, Index, 0, Table[TblIdx]);
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}
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}
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return Res;
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}
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public static ulong ExtractVec(AVec Vector, int Index, int Size)
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{
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switch (Size)
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{
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case 0: return Vector.ExtractByte(Index);
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case 1: return Vector.ExtractUInt16(Index);
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case 2: return Vector.ExtractUInt32(Index);
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case 3: return Vector.ExtractUInt64(Index);
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}
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throw new ArgumentOutOfRangeException(nameof(Size));
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}
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public static long ExtractSVec(AVec Vector, int Index, int Size)
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|
{
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switch (Size)
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{
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case 0: return (sbyte)Vector.ExtractByte(Index);
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case 1: return (short)Vector.ExtractUInt16(Index);
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case 2: return (int)Vector.ExtractUInt32(Index);
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case 3: return (long)Vector.ExtractUInt64(Index);
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}
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throw new ArgumentOutOfRangeException(nameof(Size));
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}
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|
2018-02-09 15:14:47 -05:00
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public static float VectorExtractSingle(AVec Vector, int Index)
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|
{
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|
return Vector.ExtractSingle(Index);
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}
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public static double VectorExtractDouble(AVec Vector, int Index)
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|
{
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|
return Vector.ExtractDouble(Index);
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}
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public static AVec VectorInsertSingle(float Value, AVec Vector, int Index)
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|
{
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|
return AVec.InsertSingle(Vector, Index, Value);
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|
}
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public static AVec VectorInsertDouble(double Value, AVec Vector, int Index)
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|
{
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|
return AVec.InsertDouble(Vector, Index, Value);
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|
}
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public static AVec VectorInsertInt(ulong Value, AVec Vector, int Index, int Size)
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|
|
{
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|
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|
switch (Size)
|
|
|
|
{
|
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|
case 0: return AVec.InsertByte (Vector, Index, (byte)Value);
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|
case 1: return AVec.InsertUInt16(Vector, Index, (ushort)Value);
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|
case 2: return AVec.InsertUInt32(Vector, Index, (uint)Value);
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|
case 3: return AVec.InsertUInt64(Vector, Index, (ulong)Value);
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|
|
|
}
|
|
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|
|
|
throw new ArgumentOutOfRangeException(nameof(Size));
|
|
|
|
}
|
|
|
|
|
2018-02-04 18:08:20 -05:00
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|
|
public static AVec InsertVec(AVec Vector, int Index, int Size, ulong Value)
|
|
|
|
{
|
|
|
|
switch (Size)
|
|
|
|
{
|
|
|
|
case 0: return AVec.InsertByte(Vector, Index, (byte)Value);
|
|
|
|
case 1: return AVec.InsertUInt16(Vector, Index, (ushort)Value);
|
|
|
|
case 2: return AVec.InsertUInt32(Vector, Index, (uint)Value);
|
|
|
|
case 3: return AVec.InsertUInt64(Vector, Index, (ulong)Value);
|
|
|
|
}
|
|
|
|
|
|
|
|
throw new ArgumentOutOfRangeException(nameof(Size));
|
|
|
|
}
|
|
|
|
|
|
|
|
public static AVec InsertSVec(AVec Vector, int Index, int Size, long Value)
|
|
|
|
{
|
|
|
|
switch (Size)
|
|
|
|
{
|
|
|
|
case 0: return AVec.InsertByte(Vector, Index, (byte)Value);
|
|
|
|
case 1: return AVec.InsertUInt16(Vector, Index, (ushort)Value);
|
|
|
|
case 2: return AVec.InsertUInt32(Vector, Index, (uint)Value);
|
|
|
|
case 3: return AVec.InsertUInt64(Vector, Index, (ulong)Value);
|
|
|
|
}
|
|
|
|
|
|
|
|
throw new ArgumentOutOfRangeException(nameof(Size));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|