mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-11-24 04:32:02 +00:00
409 lines
14 KiB
C#
409 lines
14 KiB
C#
using ChocolArm64.State;
|
|
using ChocolArm64.Translation;
|
|
using System;
|
|
using System.Numerics;
|
|
using System.Runtime.CompilerServices;
|
|
|
|
namespace ChocolArm64.Instruction
|
|
{
|
|
static class ASoftFallback
|
|
{
|
|
public static void EmitCall(AILEmitterCtx Context, string Name64, string Name128)
|
|
{
|
|
bool IsSimd64 = Context.CurrOp.RegisterSize == ARegisterSize.SIMD64;
|
|
|
|
Context.EmitCall(typeof(ASoftFallback), IsSimd64 ? Name64 : Name128);
|
|
}
|
|
|
|
public static void EmitCall(AILEmitterCtx Context, string MthdName)
|
|
{
|
|
Context.EmitCall(typeof(ASoftFallback), MthdName);
|
|
}
|
|
|
|
public static uint CountLeadingSigns32(uint Value) => (uint)CountLeadingSigns(Value, 32);
|
|
public static ulong CountLeadingSigns64(ulong Value) => (ulong)CountLeadingSigns(Value, 64);
|
|
|
|
private static ulong CountLeadingSigns(ulong Value, int Size)
|
|
{
|
|
return CountLeadingZeros((Value >> 1) ^ Value, Size - 1);
|
|
}
|
|
|
|
public static uint CountLeadingZeros32(uint Value) => (uint)CountLeadingZeros(Value, 32);
|
|
public static ulong CountLeadingZeros64(ulong Value) => (ulong)CountLeadingZeros(Value, 64);
|
|
|
|
private static ulong CountLeadingZeros(ulong Value, int Size)
|
|
{
|
|
int HighBit = Size - 1;
|
|
|
|
for (int Bit = HighBit; Bit >= 0; Bit--)
|
|
{
|
|
if (((Value >> Bit) & 1) != 0)
|
|
{
|
|
return (ulong)(HighBit - Bit);
|
|
}
|
|
}
|
|
|
|
return (ulong)Size;
|
|
}
|
|
|
|
private const uint Crc32RevPoly = 0xedb88320;
|
|
private const uint Crc32cRevPoly = 0x82f63b78;
|
|
|
|
public static uint Crc32b(uint Crc, byte Val) => Crc32 (Crc, Crc32RevPoly, Val);
|
|
public static uint Crc32h(uint Crc, ushort Val) => Crc32h(Crc, Crc32RevPoly, Val);
|
|
public static uint Crc32w(uint Crc, uint Val) => Crc32w(Crc, Crc32RevPoly, Val);
|
|
public static uint Crc32x(uint Crc, ulong Val) => Crc32x(Crc, Crc32RevPoly, Val);
|
|
|
|
public static uint Crc32cb(uint Crc, byte Val) => Crc32 (Crc, Crc32cRevPoly, Val);
|
|
public static uint Crc32ch(uint Crc, ushort Val) => Crc32h(Crc, Crc32cRevPoly, Val);
|
|
public static uint Crc32cw(uint Crc, uint Val) => Crc32w(Crc, Crc32cRevPoly, Val);
|
|
public static uint Crc32cx(uint Crc, ulong Val) => Crc32x(Crc, Crc32cRevPoly, Val);
|
|
|
|
private static uint Crc32h(uint Crc, uint Poly, ushort Val)
|
|
{
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 0));
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 8));
|
|
|
|
return Crc;
|
|
}
|
|
|
|
private static uint Crc32w(uint Crc, uint Poly, uint Val)
|
|
{
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 0));
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 8));
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 16));
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 24));
|
|
|
|
return Crc;
|
|
}
|
|
|
|
private static uint Crc32x(uint Crc, uint Poly, ulong Val)
|
|
{
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 0));
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 8));
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 16));
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 24));
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 32));
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 40));
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 48));
|
|
Crc = Crc32(Crc, Poly, (byte)(Val >> 56));
|
|
|
|
return Crc;
|
|
}
|
|
|
|
private static uint Crc32(uint Crc, uint Poly, byte Val)
|
|
{
|
|
Crc ^= Val;
|
|
|
|
for (int Bit = 7; Bit >= 0; Bit--)
|
|
{
|
|
uint Mask = (uint)(-(int)(Crc & 1));
|
|
|
|
Crc = (Crc >> 1) ^ (Poly & Mask);
|
|
}
|
|
|
|
return Crc;
|
|
}
|
|
|
|
public static uint ReverseBits32(uint Value)
|
|
{
|
|
Value = ((Value & 0xaaaaaaaa) >> 1) | ((Value & 0x55555555) << 1);
|
|
Value = ((Value & 0xcccccccc) >> 2) | ((Value & 0x33333333) << 2);
|
|
Value = ((Value & 0xf0f0f0f0) >> 4) | ((Value & 0x0f0f0f0f) << 4);
|
|
Value = ((Value & 0xff00ff00) >> 8) | ((Value & 0x00ff00ff) << 8);
|
|
|
|
return (Value >> 16) | (Value << 16);
|
|
}
|
|
|
|
public static ulong ReverseBits64(ulong Value)
|
|
{
|
|
Value = ((Value & 0xaaaaaaaaaaaaaaaa) >> 1) | ((Value & 0x5555555555555555) << 1);
|
|
Value = ((Value & 0xcccccccccccccccc) >> 2) | ((Value & 0x3333333333333333) << 2);
|
|
Value = ((Value & 0xf0f0f0f0f0f0f0f0) >> 4) | ((Value & 0x0f0f0f0f0f0f0f0f) << 4);
|
|
Value = ((Value & 0xff00ff00ff00ff00) >> 8) | ((Value & 0x00ff00ff00ff00ff) << 8);
|
|
Value = ((Value & 0xffff0000ffff0000) >> 16) | ((Value & 0x0000ffff0000ffff) << 16);
|
|
|
|
return (Value >> 32) | (Value << 32);
|
|
}
|
|
|
|
public static uint ReverseBytes16_32(uint Value) => (uint)ReverseBytes16_64(Value);
|
|
public static uint ReverseBytes32_32(uint Value) => (uint)ReverseBytes32_64(Value);
|
|
|
|
public static ulong ReverseBytes16_64(ulong Value) => ReverseBytes(Value, RevSize.Rev16);
|
|
public static ulong ReverseBytes32_64(ulong Value) => ReverseBytes(Value, RevSize.Rev32);
|
|
public static ulong ReverseBytes64(ulong Value) => ReverseBytes(Value, RevSize.Rev64);
|
|
|
|
private enum RevSize
|
|
{
|
|
Rev16,
|
|
Rev32,
|
|
Rev64
|
|
}
|
|
|
|
private static ulong ReverseBytes(ulong Value, RevSize Size)
|
|
{
|
|
Value = ((Value & 0xff00ff00ff00ff00) >> 8) | ((Value & 0x00ff00ff00ff00ff) << 8);
|
|
|
|
if (Size == RevSize.Rev16)
|
|
{
|
|
return Value;
|
|
}
|
|
|
|
Value = ((Value & 0xffff0000ffff0000) >> 16) | ((Value & 0x0000ffff0000ffff) << 16);
|
|
|
|
if (Size == RevSize.Rev32)
|
|
{
|
|
return Value;
|
|
}
|
|
|
|
Value = ((Value & 0xffffffff00000000) >> 32) | ((Value & 0x00000000ffffffff) << 32);
|
|
|
|
if (Size == RevSize.Rev64)
|
|
{
|
|
return Value;
|
|
}
|
|
|
|
throw new ArgumentException(nameof(Size));
|
|
}
|
|
|
|
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
|
public static int SatF32ToS32(float Value)
|
|
{
|
|
if (float.IsNaN(Value)) return 0;
|
|
|
|
return Value > int.MaxValue ? int.MaxValue :
|
|
Value < int.MinValue ? int.MinValue : (int)Value;
|
|
}
|
|
|
|
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
|
public static long SatF32ToS64(float Value)
|
|
{
|
|
if (float.IsNaN(Value)) return 0;
|
|
|
|
return Value > long.MaxValue ? long.MaxValue :
|
|
Value < long.MinValue ? long.MinValue : (long)Value;
|
|
}
|
|
|
|
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
|
public static uint SatF32ToU32(float Value)
|
|
{
|
|
if (float.IsNaN(Value)) return 0;
|
|
|
|
return Value > uint.MaxValue ? uint.MaxValue :
|
|
Value < uint.MinValue ? uint.MinValue : (uint)Value;
|
|
}
|
|
|
|
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
|
public static ulong SatF32ToU64(float Value)
|
|
{
|
|
if (float.IsNaN(Value)) return 0;
|
|
|
|
return Value > ulong.MaxValue ? ulong.MaxValue :
|
|
Value < ulong.MinValue ? ulong.MinValue : (ulong)Value;
|
|
}
|
|
|
|
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
|
public static int SatF64ToS32(double Value)
|
|
{
|
|
if (double.IsNaN(Value)) return 0;
|
|
|
|
return Value > int.MaxValue ? int.MaxValue :
|
|
Value < int.MinValue ? int.MinValue : (int)Value;
|
|
}
|
|
|
|
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
|
public static long SatF64ToS64(double Value)
|
|
{
|
|
if (double.IsNaN(Value)) return 0;
|
|
|
|
return Value > long.MaxValue ? long.MaxValue :
|
|
Value < long.MinValue ? long.MinValue : (long)Value;
|
|
}
|
|
|
|
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
|
public static uint SatF64ToU32(double Value)
|
|
{
|
|
if (double.IsNaN(Value)) return 0;
|
|
|
|
return Value > uint.MaxValue ? uint.MaxValue :
|
|
Value < uint.MinValue ? uint.MinValue : (uint)Value;
|
|
}
|
|
|
|
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
|
public static ulong SatF64ToU64(double Value)
|
|
{
|
|
if (double.IsNaN(Value)) return 0;
|
|
|
|
return Value > ulong.MaxValue ? ulong.MaxValue :
|
|
Value < ulong.MinValue ? ulong.MinValue : (ulong)Value;
|
|
}
|
|
|
|
public static long SMulHi128(long LHS, long RHS)
|
|
{
|
|
return (long)(BigInteger.Multiply(LHS, RHS) >> 64);
|
|
}
|
|
|
|
public static ulong UMulHi128(ulong LHS, ulong RHS)
|
|
{
|
|
return (ulong)(BigInteger.Multiply(LHS, RHS) >> 64);
|
|
}
|
|
|
|
public static int CountSetBits8(byte Value)
|
|
{
|
|
return ((Value >> 0) & 1) + ((Value >> 1) & 1) +
|
|
((Value >> 2) & 1) + ((Value >> 3) & 1) +
|
|
((Value >> 4) & 1) + ((Value >> 5) & 1) +
|
|
((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);
|
|
}
|
|
|
|
public static AVec Tbl1_V128(AVec Vector, AVec Tb0)
|
|
{
|
|
return Tbl(Vector, 16, Tb0);
|
|
}
|
|
|
|
public static AVec Tbl2_V64(AVec Vector, AVec Tb0, AVec Tb1)
|
|
{
|
|
return Tbl(Vector, 8, Tb0, Tb1);
|
|
}
|
|
|
|
public static AVec Tbl2_V128(AVec Vector, AVec Tb0, AVec Tb1)
|
|
{
|
|
return Tbl(Vector, 16, Tb0, Tb1);
|
|
}
|
|
|
|
public static AVec Tbl3_V64(AVec Vector, AVec Tb0, AVec Tb1, AVec Tb2)
|
|
{
|
|
return Tbl(Vector, 8, Tb0, Tb1, Tb2);
|
|
}
|
|
|
|
public static AVec Tbl3_V128(AVec Vector, AVec Tb0, AVec Tb1, AVec Tb2)
|
|
{
|
|
return Tbl(Vector, 16, Tb0, Tb1, Tb2);
|
|
}
|
|
|
|
public static AVec Tbl4_V64(AVec Vector, AVec Tb0, AVec Tb1, AVec Tb2, AVec Tb3)
|
|
{
|
|
return Tbl(Vector, 8, Tb0, Tb1, Tb2, Tb3);
|
|
}
|
|
|
|
public static AVec Tbl4_V128(AVec Vector, AVec Tb0, AVec Tb1, AVec Tb2, AVec Tb3)
|
|
{
|
|
return Tbl(Vector, 16, Tb0, Tb1, Tb2, Tb3);
|
|
}
|
|
|
|
private static AVec Tbl(AVec Vector, int Bytes, params AVec[] Tb)
|
|
{
|
|
AVec Res = new AVec();
|
|
|
|
byte[] Table = new byte[Tb.Length * 16];
|
|
|
|
for (int Index = 0; Index < Tb.Length; Index++)
|
|
for (int Index2 = 0; Index2 < 16; Index2++)
|
|
{
|
|
Table[Index * 16 + Index2] = (byte)VectorExtractIntZx(Tb[Index], Index2, 0);
|
|
}
|
|
|
|
for (int Index = 0; Index < Bytes; Index++)
|
|
{
|
|
byte TblIdx = (byte)VectorExtractIntZx(Vector, Index, 0);
|
|
|
|
if (TblIdx < Table.Length)
|
|
{
|
|
Res = VectorInsertInt(Table[TblIdx], Res, Index, 0);
|
|
}
|
|
}
|
|
|
|
return Res;
|
|
}
|
|
|
|
public static ulong VectorExtractIntZx(AVec Vector, int Index, int Size)
|
|
{
|
|
switch (Size)
|
|
{
|
|
case 0: return Vector.ExtractByte (Index);
|
|
case 1: return Vector.ExtractUInt16(Index);
|
|
case 2: return Vector.ExtractUInt32(Index);
|
|
case 3: return Vector.ExtractUInt64(Index);
|
|
}
|
|
|
|
throw new ArgumentOutOfRangeException(nameof(Size));
|
|
}
|
|
|
|
public static long VectorExtractIntSx(AVec Vector, int Index, int Size)
|
|
{
|
|
switch (Size)
|
|
{
|
|
case 0: return (sbyte)Vector.ExtractByte (Index);
|
|
case 1: return (short)Vector.ExtractUInt16(Index);
|
|
case 2: return (int)Vector.ExtractUInt32(Index);
|
|
case 3: return (long)Vector.ExtractUInt64(Index);
|
|
}
|
|
|
|
throw new ArgumentOutOfRangeException(nameof(Size));
|
|
}
|
|
|
|
public static float VectorExtractSingle(AVec Vector, int Index)
|
|
{
|
|
return Vector.ExtractSingle(Index);
|
|
}
|
|
|
|
public static double VectorExtractDouble(AVec Vector, int Index)
|
|
{
|
|
return Vector.ExtractDouble(Index);
|
|
}
|
|
|
|
public static AVec VectorInsertSingle(float Value, AVec Vector, int Index)
|
|
{
|
|
return AVec.InsertSingle(Vector, Index, Value);
|
|
}
|
|
|
|
public static AVec VectorInsertDouble(double Value, AVec Vector, int Index)
|
|
{
|
|
return AVec.InsertDouble(Vector, Index, Value);
|
|
}
|
|
|
|
public static AVec VectorInsertInt(ulong Value, AVec Vector, int Index, int Size)
|
|
{
|
|
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));
|
|
}
|
|
}
|
|
}
|