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Add CRC32 instruction and SLI (vector)

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This commit is contained in:
gdkchan 2018-03-14 00:12:05 -03:00
parent 19564e570b
commit 553ba659c4
4 changed files with 205 additions and 10 deletions
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9
ChocolArm64/AOpCodeTable.cs
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@ -42,6 +42,14 @@ namespace ChocolArm64
Set("x1111010010xxxxxxxxx00xxxxxxxxxx", AInstEmit.Ccmp, typeof(AOpCodeCcmpReg)); Set("x1111010010xxxxxxxxx00xxxxxxxxxx", AInstEmit.Ccmp, typeof(AOpCodeCcmpReg));
Set("11010101000000110011xxxx01011111", AInstEmit.Clrex, typeof(AOpCodeSystem)); Set("11010101000000110011xxxx01011111", AInstEmit.Clrex, typeof(AOpCodeSystem));
Set("x101101011000000000100xxxxxxxxxx", AInstEmit.Clz, typeof(AOpCodeAlu)); Set("x101101011000000000100xxxxxxxxxx", AInstEmit.Clz, typeof(AOpCodeAlu));
Set("x0011010110xxxxx010000xxxxxxxxxx", AInstEmit.Crc32b, typeof(AOpCodeAluRs));
Set("x0011010110xxxxx010001xxxxxxxxxx", AInstEmit.Crc32h, typeof(AOpCodeAluRs));
Set("x0011010110xxxxx010010xxxxxxxxxx", AInstEmit.Crc32w, typeof(AOpCodeAluRs));
Set("x0011010110xxxxx010011xxxxxxxxxx", AInstEmit.Crc32x, typeof(AOpCodeAluRs));
Set("x0011010110xxxxx010100xxxxxxxxxx", AInstEmit.Crc32cb, typeof(AOpCodeAluRs));
Set("x0011010110xxxxx010101xxxxxxxxxx", AInstEmit.Crc32ch, typeof(AOpCodeAluRs));
Set("x0011010110xxxxx010110xxxxxxxxxx", AInstEmit.Crc32cw, typeof(AOpCodeAluRs));
Set("x0011010110xxxxx010111xxxxxxxxxx", AInstEmit.Crc32cx, typeof(AOpCodeAluRs));
Set("x0011010100xxxxxxxxx00xxxxxxxxxx", AInstEmit.Csel, typeof(AOpCodeCsel)); Set("x0011010100xxxxxxxxx00xxxxxxxxxx", AInstEmit.Csel, typeof(AOpCodeCsel));
Set("x0011010100xxxxxxxxx01xxxxxxxxxx", AInstEmit.Csinc, typeof(AOpCodeCsel)); Set("x0011010100xxxxxxxxx01xxxxxxxxxx", AInstEmit.Csinc, typeof(AOpCodeCsel));
Set("x1011010100xxxxxxxxx00xxxxxxxxxx", AInstEmit.Csinv, typeof(AOpCodeCsel)); Set("x1011010100xxxxxxxxx00xxxxxxxxxx", AInstEmit.Csinv, typeof(AOpCodeCsel));
@ -243,6 +251,7 @@ namespace ChocolArm64
Set("0x0011110>>>>xxx010101xxxxxxxxxx", AInstEmit.Shl_V, typeof(AOpCodeSimdShImm)); Set("0x0011110>>>>xxx010101xxxxxxxxxx", AInstEmit.Shl_V, typeof(AOpCodeSimdShImm));
Set("0x101110<<100001001110xxxxxxxxxx", AInstEmit.Shll_V, typeof(AOpCodeSimd)); Set("0x101110<<100001001110xxxxxxxxxx", AInstEmit.Shll_V, typeof(AOpCodeSimd));
Set("0x00111100>>>xxx100001xxxxxxxxxx", AInstEmit.Shrn_V, typeof(AOpCodeSimdShImm)); Set("0x00111100>>>xxx100001xxxxxxxxxx", AInstEmit.Shrn_V, typeof(AOpCodeSimdShImm));
Set("0x1011110>>>>xxx010101xxxxxxxxxx", AInstEmit.Sli_V, typeof(AOpCodeSimdShImm));
Set("0x001110<<1xxxxx011001xxxxxxxxxx", AInstEmit.Smax_V, typeof(AOpCodeSimdReg)); Set("0x001110<<1xxxxx011001xxxxxxxxxx", AInstEmit.Smax_V, typeof(AOpCodeSimdReg));
Set("0x001110<<1xxxxx011011xxxxxxxxxx", AInstEmit.Smin_V, typeof(AOpCodeSimdReg)); Set("0x001110<<1xxxxx011011xxxxxxxxxx", AInstEmit.Smin_V, typeof(AOpCodeSimdReg));
Set("0x001110<<1xxxxx100000xxxxxxxxxx", AInstEmit.Smlal_V, typeof(AOpCodeSimdReg)); Set("0x001110<<1xxxxx100000xxxxxxxxxx", AInstEmit.Smlal_V, typeof(AOpCodeSimdReg));

74
ChocolArm64/Instruction/AInstEmitHash.cs Normal file
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@ -0,0 +1,74 @@
using ChocolArm64.Decoder;
using ChocolArm64.State;
using ChocolArm64.Translation;
using System.Reflection.Emit;
namespace ChocolArm64.Instruction
{
static partial class AInstEmit
{
public static void Crc32b(AILEmitterCtx Context)
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32b));
}
public static void Crc32h(AILEmitterCtx Context)
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32h));
}
public static void Crc32w(AILEmitterCtx Context)
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32w));
}
public static void Crc32x(AILEmitterCtx Context)
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32x));
}
public static void Crc32cb(AILEmitterCtx Context)
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32cb));
}
public static void Crc32ch(AILEmitterCtx Context)
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32ch));
}
public static void Crc32cw(AILEmitterCtx Context)
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32cw));
}
public static void Crc32cx(AILEmitterCtx Context)
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32cx));
}
private static void EmitCrc32(AILEmitterCtx Context, string Name)
{
AOpCodeAluRs Op = (AOpCodeAluRs)Context.CurrOp;
Context.EmitLdintzr(Op.Rn);
if (Op.RegisterSize != ARegisterSize.Int32)
{
Context.Emit(OpCodes.Conv_U4);
}
Context.EmitLdintzr(Op.Rm);
ASoftFallback.EmitCall(Context, Name);
if (Op.RegisterSize != ARegisterSize.Int32)
{
Context.Emit(OpCodes.Conv_U8);
}
Context.EmitStintzr(Op.Rd);
}
}
}

54
ChocolArm64/Instruction/AInstEmitSimdShift.cs
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@ -29,7 +29,7 @@ namespace ChocolArm64.Instruction
int Shift = Op.Imm - (8 << Op.Size); int Shift = Op.Imm - (8 << Op.Size);
EmitVectorBinaryShImmBinaryZx(Context, () => Context.Emit(OpCodes.Shl), Shift); EmitVectorShImmBinaryZx(Context, () => Context.Emit(OpCodes.Shl), Shift);
} }
public static void Shll_V(AILEmitterCtx Context) public static void Shll_V(AILEmitterCtx Context)
@ -50,6 +50,40 @@ namespace ChocolArm64.Instruction
EmitVectorShImmNarrowBinaryZx(Context, () => Context.Emit(OpCodes.Shr_Un), Shift); EmitVectorShImmNarrowBinaryZx(Context, () => Context.Emit(OpCodes.Shr_Un), Shift);
} }
public static void Sli_V(AILEmitterCtx Context)
{
AOpCodeSimdShImm Op = (AOpCodeSimdShImm)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Shift = Op.Imm - (8 << Op.Size);
ulong Mask = ulong.MaxValue >> (64 - Shift);
for (int Index = 0; Index < (Bytes >> Op.Size); Index++)
{
EmitVectorExtractZx(Context, Op.Rn, Index, Op.Size);
Context.EmitLdc_I4(Shift);
Context.Emit(OpCodes.Shl);
EmitVectorExtractZx(Context, Op.Rd, Index, Op.Size);
Context.EmitLdc_I8((long)Mask);
Context.Emit(OpCodes.And);
Context.Emit(OpCodes.Or);
EmitVectorInsert(Context, Op.Rd, Index, Op.Size);
}
if (Op.RegisterSize == ARegisterSize.SIMD64)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
public static void Sshl_V(AILEmitterCtx Context) public static void Sshl_V(AILEmitterCtx Context)
{ {
EmitVectorShl(Context, Signed: true); EmitVectorShl(Context, Signed: true);
@ -83,7 +117,7 @@ namespace ChocolArm64.Instruction
int Shift = (8 << (Op.Size + 1)) - Op.Imm; int Shift = (8 << (Op.Size + 1)) - Op.Imm;
EmitVectorBinaryShImmBinarySx(Context, () => Context.Emit(OpCodes.Shr), Shift); EmitVectorShImmBinarySx(Context, () => Context.Emit(OpCodes.Shr), Shift);
} }
public static void Ssra_V(AILEmitterCtx Context) public static void Ssra_V(AILEmitterCtx Context)
@ -98,7 +132,7 @@ namespace ChocolArm64.Instruction
Context.Emit(OpCodes.Add); Context.Emit(OpCodes.Add);
}; };
EmitVectorTernaryShImmBinarySx(Context, Emit, Shift); EmitVectorShImmTernarySx(Context, Emit, Shift);
} }
public static void Ushl_V(AILEmitterCtx Context) public static void Ushl_V(AILEmitterCtx Context)
@ -217,22 +251,22 @@ namespace ChocolArm64.Instruction
} }
} }
private static void EmitVectorBinaryShImmBinarySx(AILEmitterCtx Context, Action Emit, int Imm) private static void EmitVectorShImmBinarySx(AILEmitterCtx Context, Action Emit, int Imm)
{ {
EmitVectorShImmBinaryOp(Context, Emit, Imm, false, true); EmitVectorShImmOp(Context, Emit, Imm, false, true);
} }
private static void EmitVectorTernaryShImmBinarySx(AILEmitterCtx Context, Action Emit, int Imm) private static void EmitVectorShImmTernarySx(AILEmitterCtx Context, Action Emit, int Imm)
{ {
EmitVectorShImmBinaryOp(Context, Emit, Imm, true, true); EmitVectorShImmOp(Context, Emit, Imm, true, true);
} }
private static void EmitVectorBinaryShImmBinaryZx(AILEmitterCtx Context, Action Emit, int Imm) private static void EmitVectorShImmBinaryZx(AILEmitterCtx Context, Action Emit, int Imm)
{ {
EmitVectorShImmBinaryOp(Context, Emit, Imm, false, false); EmitVectorShImmOp(Context, Emit, Imm, false, false);
} }
private static void EmitVectorShImmBinaryOp(AILEmitterCtx Context, Action Emit, int Imm, bool Ternary, bool Signed) private static void EmitVectorShImmOp(AILEmitterCtx Context, Action Emit, int Imm, bool Ternary, bool Signed)
{ {
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp; AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;

78
ChocolArm64/Instruction/ASoftFallback.cs
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@ -38,6 +38,84 @@ namespace ChocolArm64.Instruction
return (ulong)Size; 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, byte Val) => Crc32h(Crc, Crc32RevPoly, Val);
public static uint Crc32w(uint Crc, byte Val) => Crc32w(Crc, Crc32RevPoly, Val);
public static uint Crc32x(uint Crc, byte Val) => Crc32x(Crc, Crc32RevPoly, Val);
public static uint Crc32cb(uint Crc, byte Val) => Crc32 (Crc, Crc32cRevPoly, Val);
public static uint Crc32ch(uint Crc, byte Val) => Crc32h(Crc, Crc32cRevPoly, Val);
public static uint Crc32cw(uint Crc, byte Val) => Crc32w(Crc, Crc32cRevPoly, Val);
public static uint Crc32cx(uint Crc, byte 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 ReverseBits8(uint Value)
{
Value = ((Value & 0xaa) >> 1) | ((Value & 0x55) << 1);
Value = ((Value & 0xcc) >> 2) | ((Value & 0x33) << 2);
Value = ((Value & 0xf0) >> 4) | ((Value & 0x0f) << 4);
return Value;
}
public static uint ReverseBits16(uint Value)
{
Value = ((Value & 0xaaaa) >> 1) | ((Value & 0x5555) << 1);
Value = ((Value & 0xcccc) >> 2) | ((Value & 0x3333) << 2);
Value = ((Value & 0xf0f0) >> 4) | ((Value & 0x0f0f) << 4);
Value = ((Value & 0xff00) >> 8) | ((Value & 0x00ff) << 8);
return Value;
}
public static uint ReverseBits32(uint Value) public static uint ReverseBits32(uint Value)
{ {
Value = ((Value & 0xaaaaaaaa) >> 1) | ((Value & 0x55555555) << 1); Value = ((Value & 0xaaaaaaaa) >> 1) | ((Value & 0x55555555) << 1);