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Add SMLSL, SQRSHRN and SRSHR (Vector) cpu instructions, nits (#225)

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* Add SMLSL, SQRSHRN and SRSHR (Vector) cpu instructions

* Address PR feedback

* Address PR feedback

* Remove another useless temp var

* nit: Alignment

* Replace Context.CurrOp.GetBitsCount() with Op.GetBitsCount()

* Fix encodings and move flag bit test out of the loop
This commit is contained in:
gdkchan 2018-07-14 13:13:02 -03:00 committed by GitHub
parent 2f37583ab3
commit 514218ab98
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 265 additions and 153 deletions
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20
ChocolArm64/AOpCodeTable.cs
View file

@ -371,16 +371,22 @@ namespace ChocolArm64
SetA64("0x001110<<1xxxxx011011xxxxxxxxxx", AInstEmit.Smin_V, typeof(AOpCodeSimdReg));
SetA64("0x001110<<1xxxxx101011xxxxxxxxxx", AInstEmit.Sminp_V, typeof(AOpCodeSimdReg));
SetA64("0x001110<<1xxxxx100000xxxxxxxxxx", AInstEmit.Smlal_V, typeof(AOpCodeSimdReg));
SetA64("0x001110<<1xxxxx101000xxxxxxxxxx", AInstEmit.Smlsl_V, typeof(AOpCodeSimdReg));
SetA64("0x001110<<1xxxxx110000xxxxxxxxxx", AInstEmit.Smull_V, typeof(AOpCodeSimdReg));
SetA64("0x00111100>>>xxx100111xxxxxxxxxx", AInstEmit.Sqrshrn_V, typeof(AOpCodeSimdShImm));
SetA64("01011110<<100001010010xxxxxxxxxx", AInstEmit.Sqxtn_S, typeof(AOpCodeSimd));
SetA64("0x001110<<100001010010xxxxxxxxxx", AInstEmit.Sqxtn_V, typeof(AOpCodeSimd));
SetA64("01111110<<100001001010xxxxxxxxxx", AInstEmit.Sqxtun_S, typeof(AOpCodeSimd));
SetA64("0x101110<<100001001010xxxxxxxxxx", AInstEmit.Sqxtun_V, typeof(AOpCodeSimd));
SetA64("0x00111100>>>xxx001001xxxxxxxxxx", AInstEmit.Srshr_V, typeof(AOpCodeSimdShImm));
SetA64("0100111101xxxxxx001001xxxxxxxxxx", AInstEmit.Srshr_V, typeof(AOpCodeSimdShImm));
SetA64("0>001110<<1xxxxx010001xxxxxxxxxx", AInstEmit.Sshl_V, typeof(AOpCodeSimdReg));
SetA64("0x00111100>>>xxx101001xxxxxxxxxx", AInstEmit.Sshll_V, typeof(AOpCodeSimdShImm));
SetA64("010111110>>>>xxx000001xxxxxxxxxx", AInstEmit.Sshr_S, typeof(AOpCodeSimdShImm));
SetA64("0x0011110>>>>xxx000001xxxxxxxxxx", AInstEmit.Sshr_V, typeof(AOpCodeSimdShImm));
SetA64("0x0011110>>>>xxx000101xxxxxxxxxx", AInstEmit.Ssra_V, typeof(AOpCodeSimdShImm));
SetA64("0101111101xxxxxx000001xxxxxxxxxx", AInstEmit.Sshr_S, typeof(AOpCodeSimdShImm));
SetA64("0x00111100>>>xxx000001xxxxxxxxxx", AInstEmit.Sshr_V, typeof(AOpCodeSimdShImm));
SetA64("0100111101xxxxxx000001xxxxxxxxxx", AInstEmit.Sshr_V, typeof(AOpCodeSimdShImm));
SetA64("0x00111100>>>xxx000101xxxxxxxxxx", AInstEmit.Ssra_V, typeof(AOpCodeSimdShImm));
SetA64("0100111101xxxxxx000101xxxxxxxxxx", AInstEmit.Ssra_V, typeof(AOpCodeSimdShImm));
SetA64("0x00110000000000xxxxxxxxxxxxxxxx", AInstEmit.St__Vms, typeof(AOpCodeSimdMemMs));
SetA64("0x001100100xxxxxxxxxxxxxxxxxxxxx", AInstEmit.St__Vms, typeof(AOpCodeSimdMemMs));
SetA64("0x00110100x00000xxxxxxxxxxxxxxxx", AInstEmit.St__Vss, typeof(AOpCodeSimdMemSs));
@ -419,9 +425,11 @@ namespace ChocolArm64
SetA64("0x101110<<100001010010xxxxxxxxxx", AInstEmit.Uqxtn_V, typeof(AOpCodeSimd));
SetA64("0>101110<<1xxxxx010001xxxxxxxxxx", AInstEmit.Ushl_V, typeof(AOpCodeSimdReg));
SetA64("0x10111100>>>xxx101001xxxxxxxxxx", AInstEmit.Ushll_V, typeof(AOpCodeSimdShImm));
SetA64("011111110>>>>xxx000001xxxxxxxxxx", AInstEmit.Ushr_S, typeof(AOpCodeSimdShImm));
SetA64("0x1011110>>>>xxx000001xxxxxxxxxx", AInstEmit.Ushr_V, typeof(AOpCodeSimdShImm));
SetA64("0x1011110>>>>xxx000101xxxxxxxxxx", AInstEmit.Usra_V, typeof(AOpCodeSimdShImm));
SetA64("0111111101xxxxxx000001xxxxxxxxxx", AInstEmit.Ushr_S, typeof(AOpCodeSimdShImm));
SetA64("0x10111100>>>xxx000001xxxxxxxxxx", AInstEmit.Ushr_V, typeof(AOpCodeSimdShImm));
SetA64("0110111101xxxxxx000001xxxxxxxxxx", AInstEmit.Ushr_V, typeof(AOpCodeSimdShImm));
SetA64("0x10111100>>>xxx000101xxxxxxxxxx", AInstEmit.Usra_V, typeof(AOpCodeSimdShImm));
SetA64("0110111101xxxxxx000101xxxxxxxxxx", AInstEmit.Usra_V, typeof(AOpCodeSimdShImm));
SetA64("0>001110<<0xxxxx000110xxxxxxxxxx", AInstEmit.Uzp1_V, typeof(AOpCodeSimdReg));
SetA64("0>001110<<0xxxxx010110xxxxxxxxxx", AInstEmit.Uzp2_V, typeof(AOpCodeSimdReg));
SetA64("0x001110<<100001001010xxxxxxxxxx", AInstEmit.Xtn_V, typeof(AOpCodeSimd));

118
ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs
View file

@ -65,11 +65,12 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
EmitVectorExtractZx(Context, Op.Rn, 0, Op.Size);
for (int Index = 1; Index < (Bytes >> Op.Size); Index++)
for (int Index = 1; Index < Elems; Index++)
{
EmitVectorExtractZx(Context, Op.Rn, Index, Op.Size);
@ -97,9 +98,10 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
for (int Index = 0; Index < (Bytes >> Op.Size); Index++)
for (int Index = 0; Index < Elems; Index++)
{
EmitVectorExtractZx(Context, Op.Rn, Index, Op.Size);
@ -190,84 +192,6 @@ namespace ChocolArm64.Instruction
}
}
private static void EmitSaturatingExtNarrow(AILEmitterCtx Context, bool SignedSrc, bool SignedDst, bool Scalar)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int Elems = (!Scalar ? 8 >> Op.Size : 1);
int ESize = 8 << Op.Size;
int Part = (!Scalar & (Op.RegisterSize == ARegisterSize.SIMD128) ? Elems : 0);
int TMaxValue = (SignedDst ? (1 << (ESize - 1)) - 1 : (int)((1L << ESize) - 1L));
int TMinValue = (SignedDst ? -((1 << (ESize - 1))) : 0);
Context.EmitLdc_I8(0L);
Context.EmitSttmp();
for (int Index = 0; Index < Elems; Index++)
{
AILLabel LblLe = new AILLabel();
AILLabel LblGeEnd = new AILLabel();
EmitVectorExtract(Context, Op.Rn, Index, Op.Size + 1, SignedSrc);
Context.Emit(OpCodes.Dup);
Context.EmitLdc_I4(TMaxValue);
Context.Emit(OpCodes.Conv_U8);
Context.Emit(SignedSrc ? OpCodes.Ble_S : OpCodes.Ble_Un_S, LblLe);
Context.Emit(OpCodes.Pop);
Context.EmitLdc_I4(TMaxValue);
Context.EmitLdc_I8(0x8000000L);
Context.EmitSttmp();
Context.Emit(OpCodes.Br_S, LblGeEnd);
Context.MarkLabel(LblLe);
Context.Emit(OpCodes.Dup);
Context.EmitLdc_I4(TMinValue);
Context.Emit(OpCodes.Conv_I8);
Context.Emit(SignedSrc ? OpCodes.Bge_S : OpCodes.Bge_Un_S, LblGeEnd);
Context.Emit(OpCodes.Pop);
Context.EmitLdc_I4(TMinValue);
Context.EmitLdc_I8(0x8000000L);
Context.EmitSttmp();
Context.MarkLabel(LblGeEnd);
if (Scalar)
{
EmitVectorZeroLower(Context, Op.Rd);
}
EmitVectorInsert(Context, Op.Rd, Part + Index, Op.Size);
}
if (Part == 0)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
Context.EmitCallPropGet(typeof(AThreadState), nameof(AThreadState.Fpsr));
Context.EmitLdtmp();
Context.Emit(OpCodes.Conv_I4);
Context.Emit(OpCodes.Or);
Context.EmitCallPropSet(typeof(AThreadState), nameof(AThreadState.Fpsr));
}
public static void Fabd_S(AILEmitterCtx Context)
{
EmitScalarBinaryOpF(Context, () =>
@ -338,7 +262,7 @@ namespace ChocolArm64.Instruction
int SizeF = Op.Size & 1;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> SizeF + 2;
int Half = Elems >> 1;
@ -870,7 +794,7 @@ namespace ChocolArm64.Instruction
int SizeF = Op.Size & 1;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
for (int Index = 0; Index < Bytes >> SizeF + 2; Index++)
{
@ -1102,6 +1026,15 @@ namespace ChocolArm64.Instruction
});
}
public static void Smlsl_V(AILEmitterCtx Context)
{
EmitVectorWidenRnRmTernaryOpSx(Context, () =>
{
Context.Emit(OpCodes.Mul);
Context.Emit(OpCodes.Sub);
});
}
public static void Smull_V(AILEmitterCtx Context)
{
EmitVectorWidenRnRmBinaryOpSx(Context, () => Context.Emit(OpCodes.Mul));
@ -1109,22 +1042,22 @@ namespace ChocolArm64.Instruction
public static void Sqxtn_S(AILEmitterCtx Context)
{
EmitSaturatingExtNarrow(Context, SignedSrc: true, SignedDst: true, Scalar: true);
EmitScalarSaturatingNarrowOpSxSx(Context, () => { });
}
public static void Sqxtn_V(AILEmitterCtx Context)
{
EmitSaturatingExtNarrow(Context, SignedSrc: true, SignedDst: true, Scalar: false);
EmitVectorSaturatingNarrowOpSxSx(Context, () => { });
}
public static void Sqxtun_S(AILEmitterCtx Context)
{
EmitSaturatingExtNarrow(Context, SignedSrc: true, SignedDst: false, Scalar: true);
EmitScalarSaturatingNarrowOpSxZx(Context, () => { });
}
public static void Sqxtun_V(AILEmitterCtx Context)
{
EmitSaturatingExtNarrow(Context, SignedSrc: true, SignedDst: false, Scalar: false);
EmitVectorSaturatingNarrowOpSxZx(Context, () => { });
}
public static void Sub_S(AILEmitterCtx Context)
@ -1198,11 +1131,12 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
EmitVectorExtractZx(Context, Op.Rn, 0, Op.Size);
for (int Index = 1; Index < (Bytes >> Op.Size); Index++)
for (int Index = 1; Index < Elems; Index++)
{
EmitVectorExtractZx(Context, Op.Rn, Index, Op.Size);
@ -1272,12 +1206,12 @@ namespace ChocolArm64.Instruction
public static void Uqxtn_S(AILEmitterCtx Context)
{
EmitSaturatingExtNarrow(Context, SignedSrc: false, SignedDst: false, Scalar: true);
EmitScalarSaturatingNarrowOpZxZx(Context, () => { });
}
public static void Uqxtn_V(AILEmitterCtx Context)
{
EmitSaturatingExtNarrow(Context, SignedSrc: false, SignedDst: false, Scalar: false);
EmitVectorSaturatingNarrowOpZxZx(Context, () => { });
}
}
}

6
ChocolArm64/Instruction/AInstEmitSimdCmp.cs
View file

@ -363,7 +363,7 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = (!Scalar ? Bytes >> Op.Size : 1);
ulong SzMask = ulong.MaxValue >> (64 - (8 << Op.Size));
@ -407,7 +407,7 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = (!Scalar ? Bytes >> Op.Size : 1);
ulong SzMask = ulong.MaxValue >> (64 - (8 << Op.Size));
@ -454,7 +454,7 @@ namespace ChocolArm64.Instruction
int SizeF = Op.Size & 1;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
for (int Index = 0; Index < Bytes >> SizeF + 2; Index++)
{

4
ChocolArm64/Instruction/AInstEmitSimdCvt.cs
View file

@ -337,7 +337,7 @@ namespace ChocolArm64.Instruction
int FBits = GetFBits(Context);
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
for (int Index = 0; Index < (Bytes >> SizeI); Index++)
{
@ -426,7 +426,7 @@ namespace ChocolArm64.Instruction
int FBits = GetFBits(Context);
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
for (int Index = 0; Index < (Bytes >> SizeI); Index++)
{

135
ChocolArm64/Instruction/AInstEmitSimdHelper.cs
View file

@ -3,6 +3,7 @@ using ChocolArm64.State;
using ChocolArm64.Translation;
using System;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.CompilerServices;
using System.Runtime.Intrinsics;
using System.Runtime.Intrinsics.X86;
@ -417,7 +418,7 @@ namespace ChocolArm64.Instruction
int SizeF = Op.Size & 1;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
for (int Index = 0; Index < (Bytes >> SizeF + 2); Index++)
{
@ -467,7 +468,7 @@ namespace ChocolArm64.Instruction
int SizeF = Op.Size & 1;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
for (int Index = 0; Index < (Bytes >> SizeF + 2); Index++)
{
@ -527,9 +528,10 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
for (int Index = 0; Index < (Bytes >> Op.Size); Index++)
for (int Index = 0; Index < Elems; Index++)
{
if (Opers.HasFlag(OperFlags.Rd))
{
@ -582,9 +584,10 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
for (int Index = 0; Index < (Bytes >> Op.Size); Index++)
for (int Index = 0; Index < Elems; Index++)
{
if (Ternary)
{
@ -622,9 +625,10 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdImm Op = (AOpCodeSimdImm)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
for (int Index = 0; Index < (Bytes >> Op.Size); Index++)
for (int Index = 0; Index < Elems; Index++)
{
if (Binary)
{
@ -739,11 +743,11 @@ namespace ChocolArm64.Instruction
EmitVectorPairwiseOp(Context, Emit, false);
}
private static void EmitVectorPairwiseOp(AILEmitterCtx Context, Action Emit, bool Signed)
public static void EmitVectorPairwiseOp(AILEmitterCtx Context, Action Emit, bool Signed)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
int Half = Elems >> 1;
@ -769,6 +773,117 @@ namespace ChocolArm64.Instruction
}
}
public static void EmitScalarSaturatingNarrowOpSxSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, true, true, true);
}
public static void EmitScalarSaturatingNarrowOpSxZx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, true, false, true);
}
public static void EmitScalarSaturatingNarrowOpZxZx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, false, false, true);
}
public static void EmitVectorSaturatingNarrowOpSxSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, true, true, false);
}
public static void EmitVectorSaturatingNarrowOpSxZx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, true, false, false);
}
public static void EmitVectorSaturatingNarrowOpZxZx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, false, false, false);
}
public static void EmitSaturatingNarrowOp(
AILEmitterCtx Context,
Action Emit,
bool SignedSrc,
bool SignedDst,
bool Scalar)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int Elems = !Scalar ? 8 >> Op.Size : 1;
int ESize = 8 << Op.Size;
int Part = !Scalar && (Op.RegisterSize == ARegisterSize.SIMD128) ? Elems : 0;
long TMaxValue = SignedDst ? (1 << (ESize - 1)) - 1 : (1L << ESize) - 1L;
long TMinValue = SignedDst ? -((1 << (ESize - 1))) : 0;
Context.EmitLdc_I8(0L);
Context.EmitSttmp();
for (int Index = 0; Index < Elems; Index++)
{
AILLabel LblLe = new AILLabel();
AILLabel LblGeEnd = new AILLabel();
EmitVectorExtract(Context, Op.Rn, Index, Op.Size + 1, SignedSrc);
Emit();
Context.Emit(OpCodes.Dup);
Context.EmitLdc_I8(TMaxValue);
Context.Emit(SignedSrc ? OpCodes.Ble_S : OpCodes.Ble_Un_S, LblLe);
Context.Emit(OpCodes.Pop);
Context.EmitLdc_I8(TMaxValue);
Context.EmitLdc_I8(0x8000000L);
Context.EmitSttmp();
Context.Emit(OpCodes.Br_S, LblGeEnd);
Context.MarkLabel(LblLe);
Context.Emit(OpCodes.Dup);
Context.EmitLdc_I8(TMinValue);
Context.Emit(SignedSrc ? OpCodes.Bge_S : OpCodes.Bge_Un_S, LblGeEnd);
Context.Emit(OpCodes.Pop);
Context.EmitLdc_I8(TMinValue);
Context.EmitLdc_I8(0x8000000L);
Context.EmitSttmp();
Context.MarkLabel(LblGeEnd);
if (Scalar)
{
EmitVectorZeroLower(Context, Op.Rd);
}
EmitVectorInsert(Context, Op.Rd, Part + Index, Op.Size);
}
if (Part == 0)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
Context.EmitCallPropGet(typeof(AThreadState), nameof(AThreadState.Fpsr));
Context.EmitLdtmp();
Context.Emit(OpCodes.Conv_I4);
Context.Emit(OpCodes.Or);
Context.EmitCallPropSet(typeof(AThreadState), nameof(AThreadState.Fpsr));
}
public static void EmitScalarSet(AILEmitterCtx Context, int Reg, int Size)
{
EmitVectorZeroAll(Context, Reg);

4
ChocolArm64/Instruction/AInstEmitSimdLogical.cs
View file

@ -55,7 +55,7 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
for (int Index = 0; Index < Elems; Index++)
@ -195,7 +195,7 @@ namespace ChocolArm64.Instruction
throw new InvalidOperationException();
}
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
int ContainerMask = (1 << (ContainerSize - Op.Size)) - 1;

5
ChocolArm64/Instruction/AInstEmitSimdMemory.cs
View file

@ -105,13 +105,14 @@ namespace ChocolArm64.Instruction
throw new InvalidOperationException();
}
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
for (int SElem = 0; SElem < Op.SElems; SElem++)
{
int Rt = (Op.Rt + SElem) & 0x1f;
for (int Index = 0; Index < (Bytes >> Op.Size); Index++)
for (int Index = 0; Index < Elems; Index++)
{
EmitMemAddress();

18
ChocolArm64/Instruction/AInstEmitSimdMove.cs
View file

@ -14,9 +14,10 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdIns Op = (AOpCodeSimdIns)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
for (int Index = 0; Index < (Bytes >> Op.Size); Index++)
for (int Index = 0; Index < Elems; Index++)
{
Context.EmitLdintzr(Op.Rn);
@ -42,9 +43,10 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdIns Op = (AOpCodeSimdIns)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
for (int Index = 0; Index < (Bytes >> Op.Size); Index++)
for (int Index = 0; Index < Elems; Index++)
{
EmitVectorExtractZx(Context, Op.Rn, Op.DstIndex, Op.Size);
@ -64,7 +66,7 @@ namespace ChocolArm64.Instruction
Context.EmitLdvec(Op.Rd);
Context.EmitStvectmp();
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Position = Op.Imm4;
@ -329,7 +331,7 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
@ -355,7 +357,7 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
int Half = Elems >> 1;
@ -382,7 +384,7 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
int Half = Elems >> 1;

106
ChocolArm64/Instruction/AInstEmitSimdShift.cs
View file

@ -27,9 +27,7 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdShImm Op = (AOpCodeSimdShImm)Context.CurrOp;
int Shift = Op.Imm - (8 << Op.Size);
EmitVectorShImmBinaryZx(Context, () => Context.Emit(OpCodes.Shl), Shift);
EmitVectorShImmBinaryZx(Context, () => Context.Emit(OpCodes.Shl), GetImmShl(Op));
}
public static void Shll_V(AILEmitterCtx Context)
@ -45,22 +43,21 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdShImm Op = (AOpCodeSimdShImm)Context.CurrOp;
int Shift = (8 << (Op.Size + 1)) - Op.Imm;
EmitVectorShImmNarrowBinaryZx(Context, () => Context.Emit(OpCodes.Shr_Un), Shift);
EmitVectorShImmNarrowBinaryZx(Context, () => Context.Emit(OpCodes.Shr_Un), GetImmShr(Op));
}
public static void Sli_V(AILEmitterCtx Context)
{
AOpCodeSimdShImm Op = (AOpCodeSimdShImm)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
int Shift = Op.Imm - (8 << Op.Size);
int Shift = GetImmShl(Op);
ulong Mask = Shift != 0 ? ulong.MaxValue >> (64 - Shift) : 0;
for (int Index = 0; Index < (Bytes >> Op.Size); Index++)
for (int Index = 0; Index < Elems; Index++)
{
EmitVectorExtractZx(Context, Op.Rn, Index, Op.Size);
@ -84,6 +81,39 @@ namespace ChocolArm64.Instruction
}
}
public static void Sqrshrn_V(AILEmitterCtx Context)
{
AOpCodeSimdShImm Op = (AOpCodeSimdShImm)Context.CurrOp;
int Shift = GetImmShr(Op);
long RoundConst = 1L << (Shift - 1);
Action Emit = () =>
{
Context.EmitLdc_I8(RoundConst);
Context.Emit(OpCodes.Add);
Context.EmitLdc_I4(Shift);
Context.Emit(OpCodes.Shr);
};
EmitVectorSaturatingNarrowOpSxSx(Context, Emit);
}
public static void Srshr_V(AILEmitterCtx Context)
{
AOpCodeSimdShImm Op = (AOpCodeSimdShImm)Context.CurrOp;
int Shift = GetImmShr(Op);
long RoundConst = 1L << (Shift - 1);
EmitVectorRoundShImmBinarySx(Context, () => Context.Emit(OpCodes.Shr), Shift, RoundConst);
}
public static void Sshl_V(AILEmitterCtx Context)
{
EmitVectorShl(Context, Signed: true);
@ -93,9 +123,7 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdShImm Op = (AOpCodeSimdShImm)Context.CurrOp;
int Shift = Op.Imm - (8 << Op.Size);
EmitVectorShImmWidenBinarySx(Context, () => Context.Emit(OpCodes.Shl), Shift);
EmitVectorShImmWidenBinarySx(Context, () => Context.Emit(OpCodes.Shl), GetImmShl(Op));
}
public static void Sshr_S(AILEmitterCtx Context)
@ -115,24 +143,20 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdShImm Op = (AOpCodeSimdShImm)Context.CurrOp;
int Shift = (8 << (Op.Size + 1)) - Op.Imm;
EmitVectorShImmBinarySx(Context, () => Context.Emit(OpCodes.Shr), Shift);
EmitVectorShImmBinarySx(Context, () => Context.Emit(OpCodes.Shr), GetImmShr(Op));
}
public static void Ssra_V(AILEmitterCtx Context)
{
AOpCodeSimdShImm Op = (AOpCodeSimdShImm)Context.CurrOp;
int Shift = (8 << (Op.Size + 1)) - Op.Imm;
Action Emit = () =>
{
Context.Emit(OpCodes.Shr);
Context.Emit(OpCodes.Add);
};
EmitVectorShImmTernarySx(Context, Emit, Shift);
EmitVectorShImmTernarySx(Context, Emit, GetImmShr(Op));
}
public static void Ushl_V(AILEmitterCtx Context)
@ -144,9 +168,7 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimdShImm Op = (AOpCodeSimdShImm)Context.CurrOp;
int Shift = Op.Imm - (8 << Op.Size);
EmitVectorShImmWidenBinaryZx(Context, () => Context.Emit(OpCodes.Shl), Shift);
EmitVectorShImmWidenBinaryZx(Context, () => Context.Emit(OpCodes.Shl), GetImmShl(Op));
}
public static void Ushr_S(AILEmitterCtx Context)
@ -251,28 +273,51 @@ namespace ChocolArm64.Instruction
}
}
[Flags]
private enum ShImmFlags
{
None = 0,
Signed = 1 << 0,
Ternary = 1 << 1,
Rounded = 1 << 2,
SignedTernary = Signed | Ternary,
SignedRounded = Signed | Rounded
}
private static void EmitVectorShImmBinarySx(AILEmitterCtx Context, Action Emit, int Imm)
{
EmitVectorShImmOp(Context, Emit, Imm, false, true);
EmitVectorShImmOp(Context, Emit, Imm, ShImmFlags.Signed);
}
private static void EmitVectorShImmTernarySx(AILEmitterCtx Context, Action Emit, int Imm)
{
EmitVectorShImmOp(Context, Emit, Imm, true, true);
EmitVectorShImmOp(Context, Emit, Imm, ShImmFlags.SignedTernary);
}
private static void EmitVectorShImmBinaryZx(AILEmitterCtx Context, Action Emit, int Imm)
{
EmitVectorShImmOp(Context, Emit, Imm, false, false);
EmitVectorShImmOp(Context, Emit, Imm, ShImmFlags.None);
}
private static void EmitVectorShImmOp(AILEmitterCtx Context, Action Emit, int Imm, bool Ternary, bool Signed)
private static void EmitVectorRoundShImmBinarySx(AILEmitterCtx Context, Action Emit, int Imm, long Rc)
{
EmitVectorShImmOp(Context, Emit, Imm, ShImmFlags.SignedRounded, Rc);
}
private static void EmitVectorShImmOp(AILEmitterCtx Context, Action Emit, int Imm, ShImmFlags Flags, long Rc = 0)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int Bytes = Context.CurrOp.GetBitsCount() >> 3;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
for (int Index = 0; Index < (Bytes >> Op.Size); Index++)
bool Signed = (Flags & ShImmFlags.Signed) != 0;
bool Ternary = (Flags & ShImmFlags.Ternary) != 0;
bool Rounded = (Flags & ShImmFlags.Rounded) != 0;
for (int Index = 0; Index < Elems; Index++)
{
if (Ternary)
{
@ -281,6 +326,13 @@ namespace ChocolArm64.Instruction
EmitVectorExtract(Context, Op.Rn, Index, Op.Size, Signed);
if (Rounded)
{
Context.EmitLdc_I8(Rc);
Context.Emit(OpCodes.Add);
}
Context.EmitLdc_I4(Imm);
Emit();