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Implement VMULL, VMLSL, VRSHR, VQRSHRN, VQRSHRUN AArch32 instructions + other fixes (#977)

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* Implement VMULL, VMLSL, VQRSHRN, VQRSHRUN AArch32 instructions plus other fixes

* Re-align opcode table

* Re-enable undefined, use subclasses to fix checks

* Add test and fix VRSHR instruction

* PR feedback
This commit is contained in:
gdkchan 2020-03-10 21:49:27 -03:00 • committed by GitHub
parent 89ccec197e
commit c26f3774bd
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GPG key ID: 4AEE18F83AFDEB23
14 changed files with 873 additions and 288 deletions
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2
ARMeilleure/Instructions/InstEmitAlu32.cs
View file

@ -128,8 +128,6 @@ namespace ARMeilleure.Instructions
public static void Cmp(ArmEmitterContext context)
{
IOpCode32Alu op = (IOpCode32Alu)context.CurrOp;
Operand n = GetAluN(context);
Operand m = GetAluM(context, setCarry: false);

235
ARMeilleure/Instructions/InstEmitSimdArithmetic32.cs
View file

@ -2,6 +2,7 @@
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.Translation;
using System;
using System.Diagnostics;
using static ARMeilleure.Instructions.InstEmitFlowHelper;
using static ARMeilleure.Instructions.InstEmitHelper;
@ -113,20 +114,13 @@ namespace ARMeilleure.Instructions
Operand insert = GetIntA32(context, op.Rt);
// Zero extend into an I64, then replicate. Saves the most time over elementwise inserts.
switch (op.Size)
insert = op.Size switch
{
case 2:
insert = context.Multiply(context.ZeroExtend32(OperandType.I64, insert), Const(0x0000000100000001u));
break;
case 1:
insert = context.Multiply(context.ZeroExtend16(OperandType.I64, insert), Const(0x0001000100010001u));
break;
case 0:
insert = context.Multiply(context.ZeroExtend8(OperandType.I64, insert), Const(0x0101010101010101u));
break;
default:
throw new InvalidOperationException("Unknown Vdup Size.");
}
2 => context.Multiply(context.ZeroExtend32(OperandType.I64, insert), Const(0x0000000100000001u)),
1 => context.Multiply(context.ZeroExtend16(OperandType.I64, insert), Const(0x0001000100010001u)),
0 => context.Multiply(context.ZeroExtend8(OperandType.I64, insert), Const(0x0101010101010101u)),
_ => throw new InvalidOperationException($"Invalid Vdup size \"{op.Size}\".")
};
InsertScalar(context, op.Vd, insert);
if (op.Q)
@ -142,20 +136,13 @@ namespace ARMeilleure.Instructions
Operand insert = EmitVectorExtractZx32(context, op.Vm >> 1, ((op.Vm & 1) << (3 - op.Size)) + op.Index, op.Size);
// Zero extend into an I64, then replicate. Saves the most time over elementwise inserts.
switch (op.Size)
insert = op.Size switch
{
case 2:
insert = context.Multiply(context.ZeroExtend32(OperandType.I64, insert), Const(0x0000000100000001u));
break;
case 1:
insert = context.Multiply(context.ZeroExtend16(OperandType.I64, insert), Const(0x0001000100010001u));
break;
case 0:
insert = context.Multiply(context.ZeroExtend8(OperandType.I64, insert), Const(0x0101010101010101u));
break;
default:
throw new InvalidOperationException("Unknown Vdup Size.");
}
2 => context.Multiply(context.ZeroExtend32(OperandType.I64, insert), Const(0x0000000100000001u)),
1 => context.Multiply(context.ZeroExtend16(OperandType.I64, insert), Const(0x0001000100010001u)),
0 => context.Multiply(context.ZeroExtend8(OperandType.I64, insert), Const(0x0101010101010101u)),
_ => throw new InvalidOperationException($"Invalid Vdup size \"{op.Size}\".")
};
InsertScalar(context, op.Vd, insert);
if (op.Q)
@ -575,75 +562,6 @@ namespace ARMeilleure.Instructions
}
}
public static void Vmul_S(ArmEmitterContext context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitScalarBinaryOpF32(context, Intrinsic.X86Mulss, Intrinsic.X86Mulsd);
}
else if (Optimizations.FastFP)
{
EmitScalarBinaryOpF32(context, (op1, op2) => context.Multiply(op1, op2));
}
else
{
EmitScalarBinaryOpF32(context, (op1, op2) =>
{
return EmitSoftFloatCall(context, SoftFloat32.FPMul, SoftFloat64.FPMul, op1, op2);
});
}
}
public static void Vmul_V(ArmEmitterContext context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitVectorBinaryOpF32(context, Intrinsic.X86Mulps, Intrinsic.X86Mulpd);
}
else if (Optimizations.FastFP)
{
EmitVectorBinaryOpF32(context, (op1, op2) => context.Multiply(op1, op2));
}
else
{
EmitVectorBinaryOpF32(context, (op1, op2) =>
{
return EmitSoftFloatCallDefaultFpscr(context, SoftFloat32.FPMulFpscr, SoftFloat64.FPMulFpscr, op1, op2);
});
}
}
public static void Vmul_I(ArmEmitterContext context)
{
if ((context.CurrOp as OpCode32SimdReg).U) throw new NotImplementedException("Polynomial mode not implemented");
EmitVectorBinaryOpSx32(context, (op1, op2) => context.Multiply(op1, op2));
}
public static void Vmul_1(ArmEmitterContext context)
{
OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
if (op.F)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitVectorByScalarOpF32(context, Intrinsic.X86Mulps, Intrinsic.X86Mulpd);
}
else if (Optimizations.FastFP)
{
EmitVectorByScalarOpF32(context, (op1, op2) => context.Multiply(op1, op2));
}
else
{
EmitVectorByScalarOpF32(context, (op1, op2) => EmitSoftFloatCallDefaultFpscr(context, SoftFloat32.FPMulFpscr, SoftFloat64.FPMulFpscr, op1, op2));
}
}
else
{
EmitVectorByScalarOpI32(context, (op1, op2) => context.Multiply(op1, op2), false);
}
}
public static void Vmla_S(ArmEmitterContext context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
@ -786,6 +704,111 @@ namespace ARMeilleure.Instructions
}
}
public static void Vmlsl_I(ArmEmitterContext context)
{
OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
EmitVectorTernaryLongOpI32(context, (opD, op1, op2) => context.Subtract(opD, context.Multiply(op1, op2)), !op.U);
}
public static void Vmul_S(ArmEmitterContext context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitScalarBinaryOpF32(context, Intrinsic.X86Mulss, Intrinsic.X86Mulsd);
}
else if (Optimizations.FastFP)
{
EmitScalarBinaryOpF32(context, (op1, op2) => context.Multiply(op1, op2));
}
else
{
EmitScalarBinaryOpF32(context, (op1, op2) =>
{
return EmitSoftFloatCall(context, SoftFloat32.FPMul, SoftFloat64.FPMul, op1, op2);
});
}
}
public static void Vmul_V(ArmEmitterContext context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitVectorBinaryOpF32(context, Intrinsic.X86Mulps, Intrinsic.X86Mulpd);
}
else if (Optimizations.FastFP)
{
EmitVectorBinaryOpF32(context, (op1, op2) => context.Multiply(op1, op2));
}
else
{
EmitVectorBinaryOpF32(context, (op1, op2) =>
{
return EmitSoftFloatCallDefaultFpscr(context, SoftFloat32.FPMulFpscr, SoftFloat64.FPMulFpscr, op1, op2);
});
}
}
public static void Vmul_I(ArmEmitterContext context)
{
OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
if (op.U) // This instruction is always signed, U indicates polynomial mode.
{
EmitVectorBinaryOpZx32(context, (op1, op2) => EmitPolynomialMultiply(context, op1, op2, 8 << op.Size));
}
else
{
EmitVectorBinaryOpSx32(context, (op1, op2) => context.Multiply(op1, op2));
}
}
public static void Vmul_1(ArmEmitterContext context)
{
OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
if (op.F)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitVectorByScalarOpF32(context, Intrinsic.X86Mulps, Intrinsic.X86Mulpd);
}
else if (Optimizations.FastFP)
{
EmitVectorByScalarOpF32(context, (op1, op2) => context.Multiply(op1, op2));
}
else
{
EmitVectorByScalarOpF32(context, (op1, op2) => EmitSoftFloatCallDefaultFpscr(context, SoftFloat32.FPMulFpscr, SoftFloat64.FPMulFpscr, op1, op2));
}
}
else
{
EmitVectorByScalarOpI32(context, (op1, op2) => context.Multiply(op1, op2), false);
}
}
public static void Vmull_1(ArmEmitterContext context)
{
OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
EmitVectorByScalarLongOpI32(context, (op1, op2) => context.Multiply(op1, op2), !op.U);
}
public static void Vmull_I(ArmEmitterContext context)
{
OpCode32SimdRegLong op = (OpCode32SimdRegLong)context.CurrOp;
if (op.Polynomial)
{
EmitVectorBinaryLongOpI32(context, (op1, op2) => EmitPolynomialMultiply(context, op1, op2, 8 << op.Size), false);
}
else
{
EmitVectorBinaryLongOpI32(context, (op1, op2) => context.Multiply(op1, op2), !op.U);
}
}
public static void Vpadd_V(ArmEmitterContext context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
@ -1157,5 +1180,27 @@ namespace ARMeilleure.Instructions
EmitVectorBinaryOpSimd32(context, genericEmit);
}
}
private static Operand EmitPolynomialMultiply(ArmEmitterContext context, Operand op1, Operand op2, int eSize)
{
Debug.Assert(eSize <= 32);
Operand result = eSize == 32 ? Const(0L) : Const(0);
if (eSize == 32)
{
op1 = context.ZeroExtend32(OperandType.I64, op1);
op2 = context.ZeroExtend32(OperandType.I64, op2);
}
for (int i = 0; i < eSize; i++)
{
Operand mask = context.BitwiseAnd(op1, Const(op1.Type, 1L << i));
result = context.BitwiseExclusiveOr(result, context.Multiply(op2, mask));
}
return result;
}
}
}

95
ARMeilleure/Instructions/InstEmitSimdHelper32.cs
View file

@ -57,7 +57,6 @@ namespace ARMeilleure.Instructions
// From dreg.
vec = GetVecA32(reg >> 1);
insert = context.VectorInsert(vec, value, reg & 1);
}
else
{
@ -69,6 +68,11 @@ namespace ARMeilleure.Instructions
context.Copy(vec, insert);
}
public static Operand ExtractElement(ArmEmitterContext context, int reg, int size, bool signed)
{
return EmitVectorExtract32(context, reg >> (4 - size), reg & ((16 >> size) - 1), size, signed);
}
public static void EmitVectorImmUnaryOp32(ArmEmitterContext context, Func1I emit)
{
IOpCode32SimdImm op = (IOpCode32SimdImm)context.CurrOp;
@ -250,6 +254,57 @@ namespace ARMeilleure.Instructions
context.Copy(GetVecA32(op.Qd), res);
}
public static void EmitVectorBinaryLongOpI32(ArmEmitterContext context, Func2I emit, bool signed)
{
OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
Operand res = context.VectorZero();
int elems = op.GetBytesCount() >> op.Size;
for (int index = 0; index < elems; index++)
{
Operand ne = EmitVectorExtract32(context, op.Qn, op.In + index, op.Size, signed);
Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, signed);
if (op.Size == 2)
{
ne = signed ? context.SignExtend32(OperandType.I64, ne) : context.ZeroExtend32(OperandType.I64, ne);
me = signed ? context.SignExtend32(OperandType.I64, me) : context.ZeroExtend32(OperandType.I64, me);
}
res = EmitVectorInsert(context, res, emit(ne, me), index, op.Size + 1);
}
context.Copy(GetVecA32(op.Qd), res);
}
public static void EmitVectorTernaryLongOpI32(ArmEmitterContext context, Func3I emit, bool signed)
{
OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
Operand res = context.VectorZero();
int elems = op.GetBytesCount() >> op.Size;
for (int index = 0; index < elems; index++)
{
Operand de = EmitVectorExtract32(context, op.Qd, op.Id + index, op.Size + 1, signed);
Operand ne = EmitVectorExtract32(context, op.Qn, op.In + index, op.Size, signed);
Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, signed);
if (op.Size == 2)
{
ne = signed ? context.SignExtend32(OperandType.I64, ne) : context.ZeroExtend32(OperandType.I64, ne);
me = signed ? context.SignExtend32(OperandType.I64, me) : context.ZeroExtend32(OperandType.I64, me);
}
res = EmitVectorInsert(context, res, emit(de, ne, me), index, op.Size + 1);
}
context.Copy(GetVecA32(op.Qd), res);
}
public static void EmitVectorTernaryOpI32(ArmEmitterContext context, Func3I emit, bool signed)
{
OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
@ -330,7 +385,7 @@ namespace ARMeilleure.Instructions
{
OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
Operand m = EmitVectorExtract32(context, op.Vm >> (4 - op.Size), op.Vm & ((1 << (4 - op.Size)) - 1), op.Size, signed);
Operand m = ExtractElement(context, op.Vm, op.Size, signed);
Operand res = GetVecA32(op.Qd);
@ -340,7 +395,37 @@ namespace ARMeilleure.Instructions
{
Operand ne = EmitVectorExtract32(context, op.Qn, op.In + index, op.Size, signed);
res = EmitVectorInsert(context, res, emit(ne, m), op.In + index, op.Size);
res = EmitVectorInsert(context, res, emit(ne, m), op.Id + index, op.Size);
}
context.Copy(GetVecA32(op.Qd), res);
}
public static void EmitVectorByScalarLongOpI32(ArmEmitterContext context, Func2I emit, bool signed)
{
OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
Operand m = ExtractElement(context, op.Vm, op.Size, signed);
if (op.Size == 2)
{
m = signed ? context.SignExtend32(OperandType.I64, m) : context.ZeroExtend32(OperandType.I64, m);
}
Operand res = context.VectorZero();
int elems = op.GetBytesCount() >> op.Size;
for (int index = 0; index < elems; index++)
{
Operand ne = EmitVectorExtract32(context, op.Qn, op.In + index, op.Size, signed);
if (op.Size == 2)
{
ne = signed ? context.SignExtend32(OperandType.I64, ne) : context.ZeroExtend32(OperandType.I64, ne);
}
res = EmitVectorInsert(context, res, emit(ne, m), index, op.Size + 1);
}
context.Copy(GetVecA32(op.Qd), res);
@ -454,7 +539,7 @@ namespace ARMeilleure.Instructions
// Narrow
public static void EmitVectorUnaryNarrowOp32(ArmEmitterContext context, Func1I emit)
public static void EmitVectorUnaryNarrowOp32(ArmEmitterContext context, Func1I emit, bool signed = false)
{
OpCode32Simd op = (OpCode32Simd)context.CurrOp;
@ -465,7 +550,7 @@ namespace ARMeilleure.Instructions
for (int index = 0; index < elems; index++)
{
Operand m = EmitVectorExtract32(context, op.Qm, index, op.Size + 1, false);
Operand m = EmitVectorExtract32(context, op.Qm, index, op.Size + 1, signed);
res = EmitVectorInsert(context, res, emit(m), id + index, op.Size);
}

182
ARMeilleure/Instructions/InstEmitSimdShift32.cs
View file

@ -1,5 +1,6 @@
using ARMeilleure.Decoders;
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.State;
using ARMeilleure.Translation;
using System;
using System.Diagnostics;
@ -11,6 +12,78 @@ namespace ARMeilleure.Instructions
{
static partial class InstEmit32
{
public static void Vqrshrn(ArmEmitterContext context)
{
OpCode32SimdShImm op = (OpCode32SimdShImm)context.CurrOp;
EmitRoundShrImmSaturatingNarrowOp(context, op.U ? ShrImmSaturatingNarrowFlags.VectorZxZx : ShrImmSaturatingNarrowFlags.VectorSxSx);
}
public static void Vqrshrun(ArmEmitterContext context)
{
EmitRoundShrImmSaturatingNarrowOp(context, ShrImmSaturatingNarrowFlags.VectorSxZx);
}
public static void Vrshr(ArmEmitterContext context)
{
OpCode32SimdShImm op = (OpCode32SimdShImm)context.CurrOp;
int shift = GetImmShr(op);
long roundConst = 1L << (shift - 1);
if (op.U)
{
if (op.Size < 2)
{
EmitVectorUnaryOpZx32(context, (op1) =>
{
op1 = context.Add(op1, Const(op1.Type, roundConst));
return context.ShiftRightUI(op1, Const(shift));
});
}
else if (op.Size == 2)
{
EmitVectorUnaryOpZx32(context, (op1) =>
{
op1 = context.ZeroExtend32(OperandType.I64, op1);
op1 = context.Add(op1, Const(op1.Type, roundConst));
return context.ConvertI64ToI32(context.ShiftRightUI(op1, Const(shift)));
});
}
else /* if (op.Size == 3) */
{
EmitVectorUnaryOpZx32(context, (op1) => EmitShrImm64(context, op1, signed: false, roundConst, shift));
}
}
else
{
if (op.Size < 2)
{
EmitVectorUnaryOpSx32(context, (op1) =>
{
op1 = context.Add(op1, Const(op1.Type, roundConst));
return context.ShiftRightSI(op1, Const(shift));
});
}
else if (op.Size == 2)
{
EmitVectorUnaryOpSx32(context, (op1) =>
{
op1 = context.SignExtend32(OperandType.I64, op1);
op1 = context.Add(op1, Const(op1.Type, roundConst));
return context.ConvertI64ToI32(context.ShiftRightSI(op1, Const(shift)));
});
}
else /* if (op.Size == 3) */
{
EmitVectorUnaryOpZx32(context, (op1) => EmitShrImm64(context, op1, signed: true, roundConst, shift));
}
}
}
public static void Vshl(ArmEmitterContext context)
{
OpCode32SimdShImm op = (OpCode32SimdShImm)context.CurrOp;
@ -35,7 +108,7 @@ namespace ARMeilleure.Instructions
public static void Vshr(ArmEmitterContext context)
{
OpCode32SimdShImm op = (OpCode32SimdShImm)context.CurrOp;
int shift = (8 << op.Size) - op.Shift; // Shr amount is flipped.
int shift = GetImmShr(op);
int maxShift = (8 << op.Size) - 1;
if (op.U)
@ -51,7 +124,7 @@ namespace ARMeilleure.Instructions
public static void Vshrn(ArmEmitterContext context)
{
OpCode32SimdShImm op = (OpCode32SimdShImm)context.CurrOp;
int shift = (8 << op.Size) - op.Shift; // Shr amount is flipped.
int shift = GetImmShr(op);
EmitVectorUnaryNarrowOp32(context, (op1) => context.ShiftRightUI(op1, Const(shift)));
}
@ -96,5 +169,110 @@ namespace ARMeilleure.Instructions
return context.ConditionalSelect(isOutOfRange0, Const(op.Type, 0), context.ConditionalSelect(isOutOfRangeN, min, res));
}
}
[Flags]
private enum ShrImmSaturatingNarrowFlags
{
Scalar = 1 << 0,
SignedSrc = 1 << 1,
SignedDst = 1 << 2,
Round = 1 << 3,
ScalarSxSx = Scalar | SignedSrc | SignedDst,
ScalarSxZx = Scalar | SignedSrc,
ScalarZxZx = Scalar,
VectorSxSx = SignedSrc | SignedDst,
VectorSxZx = SignedSrc,
VectorZxZx = 0
}
private static void EmitRoundShrImmSaturatingNarrowOp(ArmEmitterContext context, ShrImmSaturatingNarrowFlags flags)
{
EmitShrImmSaturatingNarrowOp(context, ShrImmSaturatingNarrowFlags.Round | flags);
}
private static void EmitShrImmSaturatingNarrowOp(ArmEmitterContext context, ShrImmSaturatingNarrowFlags flags)
{
OpCode32SimdShImm op = (OpCode32SimdShImm)context.CurrOp;
bool scalar = (flags & ShrImmSaturatingNarrowFlags.Scalar) != 0;
bool signedSrc = (flags & ShrImmSaturatingNarrowFlags.SignedSrc) != 0;
bool signedDst = (flags & ShrImmSaturatingNarrowFlags.SignedDst) != 0;
bool round = (flags & ShrImmSaturatingNarrowFlags.Round) != 0;
if (scalar)
{
// TODO: Support scalar operation.
throw new NotImplementedException();
}
int shift = GetImmShr(op);
long roundConst = 1L << (shift - 1);
EmitVectorUnaryNarrowOp32(context, (op1) =>
{
if (op.Size <= 1 || !round)
{
if (round)
{
op1 = context.Add(op1, Const(op1.Type, roundConst));
}
op1 = signedSrc ? context.ShiftRightSI(op1, Const(shift)) : context.ShiftRightUI(op1, Const(shift));
}
else /* if (op.Size == 2 && round) */
{
op1 = EmitShrImm64(context, op1, signedSrc, roundConst, shift); // shift <= 32
}
return EmitSatQ(context, op1, 8 << op.Size, signedDst);
}, signedSrc);
}
private static int GetImmShr(OpCode32SimdShImm op)
{
return (8 << op.Size) - op.Shift; // Shr amount is flipped.
}
// dst64 = (Int(src64, signed) + roundConst) >> shift;
private static Operand EmitShrImm64(
ArmEmitterContext context,
Operand value,
bool signed,
long roundConst,
int shift)
{
Delegate dlg = signed
? (Delegate)new _S64_S64_S64_S32(SoftFallback.SignedShrImm64)
: (Delegate)new _U64_U64_S64_S32(SoftFallback.UnsignedShrImm64);
return context.Call(dlg, value, Const(roundConst), Const(shift));
}
private static Operand EmitSatQ(ArmEmitterContext context, Operand value, int eSize, bool signed)
{
Debug.Assert(eSize <= 32);
long intMin = signed ? -(1L << (eSize - 1)) : 0;
long intMax = signed ? (1L << (eSize - 1)) - 1 : (1L << eSize) - 1;
Operand gt = context.ICompareGreater(value, Const(value.Type, intMax));
Operand lt = context.ICompareLess(value, Const(value.Type, intMin));
value = context.ConditionalSelect(gt, Const(value.Type, intMax), value);
value = context.ConditionalSelect(lt, Const(value.Type, intMin), value);
Operand lblNoSat = Label();
context.BranchIfFalse(lblNoSat, context.BitwiseOr(gt, lt));
// TODO: Set QC (to 1) on FPSCR here.
context.MarkLabel(lblNoSat);
return value;
}
}
}

5
ARMeilleure/Instructions/InstName.cs
View file

@ -560,12 +560,14 @@ namespace ARMeilleure.Instructions
Vminnm,
Vmla,
Vmls,
Vmlsl,
Vmov,
Vmovl,
Vmovn,
Vmrs,
Vmsr,
Vmul,
Vmull,
Vmvn,
Vneg,
Vnmul,
@ -573,8 +575,11 @@ namespace ARMeilleure.Instructions
Vnmls,
Vorr,
Vpadd,
Vqrshrn,
Vqrshrun,
Vrev,
Vrint,
Vrshr,
Vsel,
Vshl,
Vshr,