Add SQADD, UQADD, SQSUB, UQSUB, SUQADD, USQADD, SQABS, SQNEG (Scalar, Vector) instructions; add 24 Tests. Most saturation instructions now on ASoftFallback. (#314)

* Update AOpCodeTable.cs

* Update AInstEmitSimdHelper.cs

* Update AInstEmitSimdArithmetic.cs

* Update Pseudocode.cs

* Update Instructions.cs

* Update CpuTestSimd.cs

* Update CpuTestSimdReg.cs

* Update AInstEmitSimdHelper.cs

* Update AInstEmitSimdHelper.cs

* Update AInstEmitSimdHelper.cs

* Update AInstEmitSimdHelper.cs

* Update ASoftFallback.cs

* Update AInstEmitSimdHelper.cs

* Update ASoftFallback.cs

* Update AInstEmitSimdHelper.cs

* Update CpuTestSimd.cs

* Update CpuTestSimdReg.cs

* Update ASoftFallback.cs

* Update AInstEmitSimdHelper.cs

* Opt. (retest).
This commit is contained in:
LDj3SNuD 2018-08-04 21:58:54 +02:00 committed by gdkchan
parent e51ccf206b
commit f736be2efb
4 changed files with 693 additions and 65 deletions

View File

@ -374,7 +374,15 @@ namespace ChocolArm64
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("01011110xx100000011110xxxxxxxxxx", AInstEmit.Sqabs_S, typeof(AOpCodeSimd));
SetA64("0>001110<<100000011110xxxxxxxxxx", AInstEmit.Sqabs_V, typeof(AOpCodeSimd));
SetA64("01011110xx1xxxxx000011xxxxxxxxxx", AInstEmit.Sqadd_S, typeof(AOpCodeSimdReg));
SetA64("0>001110<<1xxxxx000011xxxxxxxxxx", AInstEmit.Sqadd_V, typeof(AOpCodeSimdReg));
SetA64("01111110xx100000011110xxxxxxxxxx", AInstEmit.Sqneg_S, typeof(AOpCodeSimd));
SetA64("0>101110<<100000011110xxxxxxxxxx", AInstEmit.Sqneg_V, typeof(AOpCodeSimd));
SetA64("0x00111100>>>xxx100111xxxxxxxxxx", AInstEmit.Sqrshrn_V, typeof(AOpCodeSimdShImm));
SetA64("01011110xx1xxxxx001011xxxxxxxxxx", AInstEmit.Sqsub_S, typeof(AOpCodeSimdReg));
SetA64("0>001110<<1xxxxx001011xxxxxxxxxx", AInstEmit.Sqsub_V, typeof(AOpCodeSimdReg));
SetA64("01011110<<100001010010xxxxxxxxxx", AInstEmit.Sqxtn_S, typeof(AOpCodeSimd));
SetA64("0x001110<<100001010010xxxxxxxxxx", AInstEmit.Sqxtn_V, typeof(AOpCodeSimd));
SetA64("01111110<<100001001010xxxxxxxxxx", AInstEmit.Sqxtun_S, typeof(AOpCodeSimd));
@ -402,6 +410,8 @@ namespace ChocolArm64
SetA64("01111110111xxxxx100001xxxxxxxxxx", AInstEmit.Sub_S, typeof(AOpCodeSimdReg));
SetA64("0>101110<<1xxxxx100001xxxxxxxxxx", AInstEmit.Sub_V, typeof(AOpCodeSimdReg));
SetA64("0x001110<<1xxxxx011000xxxxxxxxxx", AInstEmit.Subhn_V, typeof(AOpCodeSimdReg));
SetA64("01011110xx100000001110xxxxxxxxxx", AInstEmit.Suqadd_S, typeof(AOpCodeSimd));
SetA64("0>001110<<100000001110xxxxxxxxxx", AInstEmit.Suqadd_V, typeof(AOpCodeSimd));
SetA64("0x001110000xxxxx0xx000xxxxxxxxxx", AInstEmit.Tbl_V, typeof(AOpCodeSimdTbl));
SetA64("0>001110<<0xxxxx001010xxxxxxxxxx", AInstEmit.Trn1_V, typeof(AOpCodeSimdReg));
SetA64("0>001110<<0xxxxx011010xxxxxxxxxx", AInstEmit.Trn2_V, typeof(AOpCodeSimdReg));
@ -423,6 +433,10 @@ namespace ChocolArm64
SetA64("0x101110<<1xxxxx101011xxxxxxxxxx", AInstEmit.Uminp_V, typeof(AOpCodeSimdReg));
SetA64("0x001110000xxxxx001111xxxxxxxxxx", AInstEmit.Umov_S, typeof(AOpCodeSimdIns));
SetA64("0x101110<<1xxxxx110000xxxxxxxxxx", AInstEmit.Umull_V, typeof(AOpCodeSimdReg));
SetA64("01111110xx1xxxxx000011xxxxxxxxxx", AInstEmit.Uqadd_S, typeof(AOpCodeSimdReg));
SetA64("0>101110<<1xxxxx000011xxxxxxxxxx", AInstEmit.Uqadd_V, typeof(AOpCodeSimdReg));
SetA64("01111110xx1xxxxx001011xxxxxxxxxx", AInstEmit.Uqsub_S, typeof(AOpCodeSimdReg));
SetA64("0>101110<<1xxxxx001011xxxxxxxxxx", AInstEmit.Uqsub_V, typeof(AOpCodeSimdReg));
SetA64("01111110<<100001010010xxxxxxxxxx", AInstEmit.Uqxtn_S, typeof(AOpCodeSimd));
SetA64("0x101110<<100001010010xxxxxxxxxx", AInstEmit.Uqxtn_V, typeof(AOpCodeSimd));
SetA64("0>101110<<1xxxxx010001xxxxxxxxxx", AInstEmit.Ushl_V, typeof(AOpCodeSimdReg));
@ -430,6 +444,8 @@ namespace ChocolArm64
SetA64("0111111101xxxxxx000001xxxxxxxxxx", AInstEmit.Ushr_S, typeof(AOpCodeSimdShImm));
SetA64("0x10111100>>>xxx000001xxxxxxxxxx", AInstEmit.Ushr_V, typeof(AOpCodeSimdShImm));
SetA64("0110111101xxxxxx000001xxxxxxxxxx", AInstEmit.Ushr_V, typeof(AOpCodeSimdShImm));
SetA64("01111110xx100000001110xxxxxxxxxx", AInstEmit.Usqadd_S, typeof(AOpCodeSimd));
SetA64("0>101110<<100000001110xxxxxxxxxx", AInstEmit.Usqadd_V, typeof(AOpCodeSimd));
SetA64("0x10111100>>>xxx000101xxxxxxxxxx", AInstEmit.Usra_V, typeof(AOpCodeSimdShImm));
SetA64("0110111101xxxxxx000101xxxxxxxxxx", AInstEmit.Usra_V, typeof(AOpCodeSimdShImm));
SetA64("0x101110<<1xxxxx001100xxxxxxxxxx", AInstEmit.Usubw_V, typeof(AOpCodeSimdReg));

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@ -1052,6 +1052,46 @@ namespace ChocolArm64.Instruction
EmitVectorWidenRnRmBinaryOpSx(Context, () => Context.Emit(OpCodes.Mul));
}
public static void Sqabs_S(AILEmitterCtx Context)
{
EmitScalarSaturatingUnaryOpSx(Context, () => EmitAbs(Context));
}
public static void Sqabs_V(AILEmitterCtx Context)
{
EmitVectorSaturatingUnaryOpSx(Context, () => EmitAbs(Context));
}
public static void Sqadd_S(AILEmitterCtx Context)
{
EmitScalarSaturatingBinaryOpSx(Context, SaturatingFlags.Add);
}
public static void Sqadd_V(AILEmitterCtx Context)
{
EmitVectorSaturatingBinaryOpSx(Context, SaturatingFlags.Add);
}
public static void Sqneg_S(AILEmitterCtx Context)
{
EmitScalarSaturatingUnaryOpSx(Context, () => Context.Emit(OpCodes.Neg));
}
public static void Sqneg_V(AILEmitterCtx Context)
{
EmitVectorSaturatingUnaryOpSx(Context, () => Context.Emit(OpCodes.Neg));
}
public static void Sqsub_S(AILEmitterCtx Context)
{
EmitScalarSaturatingBinaryOpSx(Context, SaturatingFlags.Sub);
}
public static void Sqsub_V(AILEmitterCtx Context)
{
EmitVectorSaturatingBinaryOpSx(Context, SaturatingFlags.Sub);
}
public static void Sqxtn_S(AILEmitterCtx Context)
{
EmitScalarSaturatingNarrowOpSxSx(Context, () => { });
@ -1099,6 +1139,16 @@ namespace ChocolArm64.Instruction
EmitHighNarrow(Context, () => Context.Emit(OpCodes.Sub), Round: false);
}
public static void Suqadd_S(AILEmitterCtx Context)
{
EmitScalarSaturatingBinaryOpSx(Context, SaturatingFlags.Accumulate);
}
public static void Suqadd_V(AILEmitterCtx Context)
{
EmitVectorSaturatingBinaryOpSx(Context, SaturatingFlags.Accumulate);
}
public static void Uaba_V(AILEmitterCtx Context)
{
EmitVectorTernaryOpZx(Context, () =>
@ -1221,6 +1271,26 @@ namespace ChocolArm64.Instruction
EmitVectorWidenRnRmBinaryOpZx(Context, () => Context.Emit(OpCodes.Mul));
}
public static void Uqadd_S(AILEmitterCtx Context)
{
EmitScalarSaturatingBinaryOpZx(Context, SaturatingFlags.Add);
}
public static void Uqadd_V(AILEmitterCtx Context)
{
EmitVectorSaturatingBinaryOpZx(Context, SaturatingFlags.Add);
}
public static void Uqsub_S(AILEmitterCtx Context)
{
EmitScalarSaturatingBinaryOpZx(Context, SaturatingFlags.Sub);
}
public static void Uqsub_V(AILEmitterCtx Context)
{
EmitVectorSaturatingBinaryOpZx(Context, SaturatingFlags.Sub);
}
public static void Uqxtn_S(AILEmitterCtx Context)
{
EmitScalarSaturatingNarrowOpZxZx(Context, () => { });
@ -1231,6 +1301,16 @@ namespace ChocolArm64.Instruction
EmitVectorSaturatingNarrowOpZxZx(Context, () => { });
}
public static void Usqadd_S(AILEmitterCtx Context)
{
EmitScalarSaturatingBinaryOpZx(Context, SaturatingFlags.Accumulate);
}
public static void Usqadd_V(AILEmitterCtx Context)
{
EmitVectorSaturatingBinaryOpZx(Context, SaturatingFlags.Accumulate);
}
public static void Usubw_V(AILEmitterCtx Context)
{
EmitVectorWidenRmBinaryOpZx(Context, () => Context.Emit(OpCodes.Sub));

View File

@ -336,17 +336,21 @@ namespace ChocolArm64.Instruction
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
if (Opers.HasFlag(OperFlags.Rd))
bool Rd = (Opers & OperFlags.Rd) != 0;
bool Rn = (Opers & OperFlags.Rn) != 0;
bool Rm = (Opers & OperFlags.Rm) != 0;
if (Rd)
{
EmitVectorExtract(Context, Op.Rd, 0, Op.Size, Signed);
}
if (Opers.HasFlag(OperFlags.Rn))
if (Rn)
{
EmitVectorExtract(Context, Op.Rn, 0, Op.Size, Signed);
}
if (Opers.HasFlag(OperFlags.Rm))
if (Rm)
{
EmitVectorExtract(Context, ((AOpCodeSimdReg)Op).Rm, 0, Op.Size, Signed);
}
@ -377,17 +381,21 @@ namespace ChocolArm64.Instruction
int SizeF = Op.Size & 1;
if (Opers.HasFlag(OperFlags.Ra))
bool Ra = (Opers & OperFlags.Ra) != 0;
bool Rn = (Opers & OperFlags.Rn) != 0;
bool Rm = (Opers & OperFlags.Rm) != 0;
if (Ra)
{
EmitVectorExtractF(Context, ((AOpCodeSimdReg)Op).Ra, 0, SizeF);
}
if (Opers.HasFlag(OperFlags.Rn))
if (Rn)
{
EmitVectorExtractF(Context, Op.Rn, 0, SizeF);
}
if (Opers.HasFlag(OperFlags.Rm))
if (Rm)
{
EmitVectorExtractF(Context, ((AOpCodeSimdReg)Op).Rm, 0, SizeF);
}
@ -769,7 +777,7 @@ namespace ChocolArm64.Instruction
Emit();
EmitVectorInsertTmp(Context, Pairs + Index, Op.Size);
EmitVectorInsertTmp(Context, Index, Op.Size);
EmitVectorInsertTmp(Context, Index, Op.Size);
}
Context.EmitLdvectmp();
@ -781,56 +789,241 @@ namespace ChocolArm64.Instruction
}
}
[Flags]
public enum SaturatingFlags
{
Scalar = 1 << 0,
Signed = 1 << 1,
Add = 1 << 2,
Sub = 1 << 3,
Accumulate = 1 << 4,
ScalarSx = Scalar | Signed,
ScalarZx = Scalar,
VectorSx = Signed,
VectorZx = 0,
}
public static void EmitScalarSaturatingUnaryOpSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingUnaryOpSx(Context, Emit, SaturatingFlags.ScalarSx);
}
public static void EmitVectorSaturatingUnaryOpSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingUnaryOpSx(Context, Emit, SaturatingFlags.VectorSx);
}
public static void EmitSaturatingUnaryOpSx(AILEmitterCtx Context, Action Emit, SaturatingFlags Flags)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
bool Scalar = (Flags & SaturatingFlags.Scalar) != 0;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = !Scalar ? Bytes >> Op.Size : 1;
if (Scalar)
{
EmitVectorZeroLowerTmp(Context);
}
for (int Index = 0; Index < Elems; Index++)
{
EmitVectorExtractSx(Context, Op.Rn, Index, Op.Size);
Emit();
EmitUnarySignedSatQAbsOrNeg(Context, Op.Size);
EmitVectorInsertTmp(Context, Index, Op.Size);
}
Context.EmitLdvectmp();
Context.EmitStvec(Op.Rd);
if ((Op.RegisterSize == ARegisterSize.SIMD64) || Scalar)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
public static void EmitScalarSaturatingBinaryOpSx(AILEmitterCtx Context, SaturatingFlags Flags)
{
EmitSaturatingBinaryOp(Context, SaturatingFlags.ScalarSx | Flags);
}
public static void EmitScalarSaturatingBinaryOpZx(AILEmitterCtx Context, SaturatingFlags Flags)
{
EmitSaturatingBinaryOp(Context, SaturatingFlags.ScalarZx | Flags);
}
public static void EmitVectorSaturatingBinaryOpSx(AILEmitterCtx Context, SaturatingFlags Flags)
{
EmitSaturatingBinaryOp(Context, SaturatingFlags.VectorSx | Flags);
}
public static void EmitVectorSaturatingBinaryOpZx(AILEmitterCtx Context, SaturatingFlags Flags)
{
EmitSaturatingBinaryOp(Context, SaturatingFlags.VectorZx | Flags);
}
public static void EmitSaturatingBinaryOp(AILEmitterCtx Context, SaturatingFlags Flags)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
bool Scalar = (Flags & SaturatingFlags.Scalar) != 0;
bool Signed = (Flags & SaturatingFlags.Signed) != 0;
bool Add = (Flags & SaturatingFlags.Add) != 0;
bool Sub = (Flags & SaturatingFlags.Sub) != 0;
bool Accumulate = (Flags & SaturatingFlags.Accumulate) != 0;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = !Scalar ? Bytes >> Op.Size : 1;
if (Scalar)
{
EmitVectorZeroLowerTmp(Context);
}
if (Add || Sub)
{
for (int Index = 0; Index < Elems; Index++)
{
EmitVectorExtract(Context, Op.Rn, Index, Op.Size, Signed);
EmitVectorExtract(Context, ((AOpCodeSimdReg)Op).Rm, Index, Op.Size, Signed);
if (Op.Size <= 2)
{
Context.Emit(Add ? OpCodes.Add : OpCodes.Sub);
EmitSatQ(Context, Op.Size, true, Signed);
}
else /* if (Op.Size == 3) */
{
if (Add)
{
EmitBinarySatQAdd(Context, Signed);
}
else /* if (Sub) */
{
EmitBinarySatQSub(Context, Signed);
}
}
EmitVectorInsertTmp(Context, Index, Op.Size);
}
}
else if (Accumulate)
{
for (int Index = 0; Index < Elems; Index++)
{
EmitVectorExtract(Context, Op.Rn, Index, Op.Size, !Signed);
EmitVectorExtract(Context, Op.Rd, Index, Op.Size, Signed);
if (Op.Size <= 2)
{
Context.Emit(OpCodes.Add);
EmitSatQ(Context, Op.Size, true, Signed);
}
else /* if (Op.Size == 3) */
{
EmitBinarySatQAccumulate(Context, Signed);
}
EmitVectorInsertTmp(Context, Index, Op.Size);
}
}
Context.EmitLdvectmp();
Context.EmitStvec(Op.Rd);
if ((Op.RegisterSize == ARegisterSize.SIMD64) || Scalar)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
[Flags]
public enum SaturatingNarrowFlags
{
Scalar = 1 << 0,
SignedSrc = 1 << 1,
SignedDst = 1 << 2,
ScalarSxSx = Scalar | SignedSrc | SignedDst,
ScalarSxZx = Scalar | SignedSrc,
ScalarZxSx = Scalar | SignedDst,
ScalarZxZx = Scalar,
VectorSxSx = SignedSrc | SignedDst,
VectorSxZx = SignedSrc,
VectorZxSx = SignedDst,
VectorZxZx = 0
}
public static void EmitScalarSaturatingNarrowOpSxSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, true, true, true);
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.ScalarSxSx);
}
public static void EmitScalarSaturatingNarrowOpSxZx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, true, false, true);
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.ScalarSxZx);
}
public static void EmitScalarSaturatingNarrowOpZxSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.ScalarZxSx);
}
public static void EmitScalarSaturatingNarrowOpZxZx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, false, false, true);
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.ScalarZxZx);
}
public static void EmitVectorSaturatingNarrowOpSxSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, true, true, false);
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.VectorSxSx);
}
public static void EmitVectorSaturatingNarrowOpSxZx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, true, false, false);
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.VectorSxZx);
}
public static void EmitVectorSaturatingNarrowOpZxSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.VectorZxSx);
}
public static void EmitVectorSaturatingNarrowOpZxZx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, false, false, false);
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.VectorZxZx);
}
public static void EmitSaturatingNarrowOp(
AILEmitterCtx Context,
Action Emit,
bool SignedSrc,
bool SignedDst,
bool Scalar)
public static void EmitSaturatingNarrowOp(AILEmitterCtx Context, Action Emit, SaturatingNarrowFlags Flags)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int Elems = !Scalar ? 8 >> Op.Size : 1;
bool Scalar = (Flags & SaturatingNarrowFlags.Scalar) != 0;
bool SignedSrc = (Flags & SaturatingNarrowFlags.SignedSrc) != 0;
bool SignedDst = (Flags & SaturatingNarrowFlags.SignedDst) != 0;
int ESize = 8 << Op.Size;
int Elems = !Scalar ? 8 >> Op.Size : 1;
int Part = !Scalar && (Op.RegisterSize == ARegisterSize.SIMD128) ? Elems : 0;
long TMaxValue = SignedDst ? (1 << (ESize - 1)) - 1 : (long)(~0UL >> (64 - ESize));
long TMinValue = SignedDst ? -((1 << (ESize - 1))) : 0;
Context.EmitLdc_I8(0L);
Context.EmitSttmp();
if (Scalar)
{
EmitVectorZeroLowerTmp(Context);
}
if (Part != 0)
{
@ -840,47 +1033,11 @@ namespace ChocolArm64.Instruction
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)
{
EmitVectorZeroLowerTmp(Context);
}
EmitSatQ(Context, Op.Size, SignedSrc, SignedDst);
EmitVectorInsertTmp(Context, Part + Index, Op.Size);
}
@ -892,13 +1049,120 @@ namespace ChocolArm64.Instruction
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
// TSrc (16bit, 32bit, 64bit; signed, unsigned) > TDst (8bit, 16bit, 32bit; signed, unsigned).
public static void EmitSatQ(
AILEmitterCtx Context,
int SizeDst,
bool SignedSrc,
bool SignedDst)
{
if (SizeDst > 2)
{
throw new ArgumentOutOfRangeException(nameof(SizeDst));
}
Context.EmitLdc_I4(SizeDst);
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
if (SignedSrc)
{
ASoftFallback.EmitCall(Context, SignedDst
? nameof(ASoftFallback.SignedSrcSignedDstSatQ)
: nameof(ASoftFallback.SignedSrcUnsignedDstSatQ));
}
else
{
ASoftFallback.EmitCall(Context, SignedDst
? nameof(ASoftFallback.UnsignedSrcSignedDstSatQ)
: nameof(ASoftFallback.UnsignedSrcUnsignedDstSatQ));
}
}
// TSrc (8bit, 16bit, 32bit, 64bit) == TDst (8bit, 16bit, 32bit, 64bit); signed.
public static void EmitUnarySignedSatQAbsOrNeg(AILEmitterCtx Context, int Size)
{
int ESize = 8 << Size;
long TMaxValue = (1L << (ESize - 1)) - 1L;
long TMinValue = -(1L << (ESize - 1));
AILLabel LblFalse = new AILLabel();
Context.Emit(OpCodes.Dup);
Context.Emit(OpCodes.Neg);
Context.EmitLdc_I8(TMinValue);
Context.Emit(OpCodes.Ceq);
Context.Emit(OpCodes.Brfalse_S, LblFalse);
Context.Emit(OpCodes.Pop);
EmitSetFpsrQCFlag(Context);
Context.EmitLdc_I8(TMaxValue);
Context.MarkLabel(LblFalse);
}
// TSrcs (64bit) == TDst (64bit); signed, unsigned.
public static void EmitBinarySatQAdd(AILEmitterCtx Context, bool Signed)
{
if (((AOpCodeSimdReg)Context.CurrOp).Size < 3)
{
throw new InvalidOperationException();
}
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
ASoftFallback.EmitCall(Context, Signed
? nameof(ASoftFallback.BinarySignedSatQAdd)
: nameof(ASoftFallback.BinaryUnsignedSatQAdd));
}
// TSrcs (64bit) == TDst (64bit); signed, unsigned.
public static void EmitBinarySatQSub(AILEmitterCtx Context, bool Signed)
{
if (((AOpCodeSimdReg)Context.CurrOp).Size < 3)
{
throw new InvalidOperationException();
}
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
ASoftFallback.EmitCall(Context, Signed
? nameof(ASoftFallback.BinarySignedSatQSub)
: nameof(ASoftFallback.BinaryUnsignedSatQSub));
}
// TSrcs (64bit) == TDst (64bit); signed, unsigned.
public static void EmitBinarySatQAccumulate(AILEmitterCtx Context, bool Signed)
{
if (((AOpCodeSimd)Context.CurrOp).Size < 3)
{
throw new InvalidOperationException();
}
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
ASoftFallback.EmitCall(Context, Signed
? nameof(ASoftFallback.BinarySignedSatQAcc)
: nameof(ASoftFallback.BinaryUnsignedSatQAcc));
}
public static void EmitSetFpsrQCFlag(AILEmitterCtx Context)
{
const int QCFlagBit = 27;
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
Context.EmitCallPropGet(typeof(AThreadState), nameof(AThreadState.Fpsr));
Context.EmitLdtmp();
Context.Emit(OpCodes.Conv_I4);
Context.EmitLdc_I4(1 << QCFlagBit);
Context.Emit(OpCodes.Or);
Context.EmitCallPropSet(typeof(AThreadState), nameof(AThreadState.Fpsr));
}

View File

@ -1,3 +1,4 @@
using ChocolArm64.State;
using ChocolArm64.Translation;
using System;
@ -10,6 +11,273 @@ namespace ChocolArm64.Instruction
Context.EmitCall(typeof(ASoftFallback), MthdName);
}
public static long BinarySignedSatQAdd(long op1, long op2, AThreadState State)
{
long Add = op1 + op2;
if ((~(op1 ^ op2) & (op1 ^ Add)) < 0L)
{
SetFpsrQCFlag(State);
if (op1 < 0L)
{
return long.MinValue;
}
else
{
return long.MaxValue;
}
}
else
{
return Add;
}
}
public static ulong BinaryUnsignedSatQAdd(ulong op1, ulong op2, AThreadState State)
{
ulong Add = op1 + op2;
if ((Add < op1) && (Add < op2))
{
SetFpsrQCFlag(State);
return ulong.MaxValue;
}
else
{
return Add;
}
}
public static long BinarySignedSatQSub(long op1, long op2, AThreadState State)
{
long Sub = op1 - op2;
if (((op1 ^ op2) & (op1 ^ Sub)) < 0L)
{
SetFpsrQCFlag(State);
if (op1 < 0L)
{
return long.MinValue;
}
else
{
return long.MaxValue;
}
}
else
{
return Sub;
}
}
public static ulong BinaryUnsignedSatQSub(ulong op1, ulong op2, AThreadState State)
{
ulong Sub = op1 - op2;
if (op1 < op2)
{
SetFpsrQCFlag(State);
return ulong.MinValue;
}
else
{
return Sub;
}
}
public static long BinarySignedSatQAcc(ulong op1, long op2, AThreadState State)
{
if (op1 <= (ulong)long.MaxValue)
{
// op1 from ulong.MinValue to (ulong)long.MaxValue
// op2 from long.MinValue to long.MaxValue
long Add = (long)op1 + op2;
if ((~op2 & Add) < 0L)
{
SetFpsrQCFlag(State);
return long.MaxValue;
}
else
{
return Add;
}
}
else if (op2 >= 0L)
{
// op1 from (ulong)long.MaxValue + 1UL to ulong.MaxValue
// op2 from (long)ulong.MinValue to long.MaxValue
SetFpsrQCFlag(State);
return long.MaxValue;
}
else
{
// op1 from (ulong)long.MaxValue + 1UL to ulong.MaxValue
// op2 from long.MinValue to (long)ulong.MinValue - 1L
ulong Add = op1 + (ulong)op2;
if (Add > (ulong)long.MaxValue)
{
SetFpsrQCFlag(State);
return long.MaxValue;
}
else
{
return (long)Add;
}
}
}
public static ulong BinaryUnsignedSatQAcc(long op1, ulong op2, AThreadState State)
{
if (op1 >= 0L)
{
// op1 from (long)ulong.MinValue to long.MaxValue
// op2 from ulong.MinValue to ulong.MaxValue
ulong Add = (ulong)op1 + op2;
if ((Add < (ulong)op1) && (Add < op2))
{
SetFpsrQCFlag(State);
return ulong.MaxValue;
}
else
{
return Add;
}
}
else if (op2 > (ulong)long.MaxValue)
{
// op1 from long.MinValue to (long)ulong.MinValue - 1L
// op2 from (ulong)long.MaxValue + 1UL to ulong.MaxValue
return (ulong)op1 + op2;
}
else
{
// op1 from long.MinValue to (long)ulong.MinValue - 1L
// op2 from ulong.MinValue to (ulong)long.MaxValue
long Add = op1 + (long)op2;
if (Add < (long)ulong.MinValue)
{
SetFpsrQCFlag(State);
return ulong.MinValue;
}
else
{
return (ulong)Add;
}
}
}
public static long SignedSrcSignedDstSatQ(long op, int Size, AThreadState State)
{
int ESize = 8 << Size;
long TMaxValue = (1L << (ESize - 1)) - 1L;
long TMinValue = -(1L << (ESize - 1));
if (op > TMaxValue)
{
SetFpsrQCFlag(State);
return TMaxValue;
}
else if (op < TMinValue)
{
SetFpsrQCFlag(State);
return TMinValue;
}
else
{
return op;
}
}
public static ulong SignedSrcUnsignedDstSatQ(long op, int Size, AThreadState State)
{
int ESize = 8 << Size;
ulong TMaxValue = (1UL << ESize) - 1UL;
ulong TMinValue = 0UL;
if (op > (long)TMaxValue)
{
SetFpsrQCFlag(State);
return TMaxValue;
}
else if (op < (long)TMinValue)
{
SetFpsrQCFlag(State);
return TMinValue;
}
else
{
return (ulong)op;
}
}
public static long UnsignedSrcSignedDstSatQ(ulong op, int Size, AThreadState State)
{
int ESize = 8 << Size;
long TMaxValue = (1L << (ESize - 1)) - 1L;
if (op > (ulong)TMaxValue)
{
SetFpsrQCFlag(State);
return TMaxValue;
}
else
{
return (long)op;
}
}
public static ulong UnsignedSrcUnsignedDstSatQ(ulong op, int Size, AThreadState State)
{
int ESize = 8 << Size;
ulong TMaxValue = (1UL << ESize) - 1UL;
if (op > TMaxValue)
{
SetFpsrQCFlag(State);
return TMaxValue;
}
else
{
return op;
}
}
private static void SetFpsrQCFlag(AThreadState State)
{
const int QCFlagBit = 27;
State.Fpsr |= 1 << QCFlagBit;
}
public static ulong CountLeadingSigns(ulong Value, int Size)
{
Value ^= Value >> 1;