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Update AInstEmitSimdCvt.cs

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LDj3SNuD 2018-08-28 02:01:54 +02:00 • committed by GitHub
parent cd73076097
commit c3c41728d4
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1 changed files with 69 additions and 1 deletions
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70
ChocolArm64/Instruction/AInstEmitSimdCvt.cs
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@ -106,6 +106,26 @@ namespace ChocolArm64.Instruction
}
}
public static void Fcvtns_S(AILEmitterCtx Context)
{
EmitFcvtn(Context, Signed: true, Scalar: true);
}
public static void Fcvtns_V(AILEmitterCtx Context)
{
EmitFcvtn(Context, Signed: true, Scalar: false);
}
public static void Fcvtnu_S(AILEmitterCtx Context)
{
EmitFcvtn(Context, Signed: false, Scalar: true);
}
public static void Fcvtnu_V(AILEmitterCtx Context)
{
EmitFcvtn(Context, Signed: false, Scalar: false);
}
public static void Fcvtps_Gp(AILEmitterCtx Context)
{
EmitFcvt_s_Gp(Context, () => EmitUnaryMathCall(Context, nameof(Math.Ceiling)));
@ -250,6 +270,54 @@ namespace ChocolArm64.Instruction
}
}
private static void EmitFcvtn(AILEmitterCtx Context, bool Signed, bool Scalar)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int SizeF = Op.Size & 1;
int SizeI = SizeF + 2;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = !Scalar ? Bytes >> SizeI : 1;
if (Scalar && (SizeF == 0))
{
EmitVectorZeroLowerTmp(Context);
}
for (int Index = 0; Index < Elems; Index++)
{
EmitVectorExtractF(Context, Op.Rn, Index, SizeF);
EmitRoundMathCall(Context, MidpointRounding.ToEven);
if (SizeF == 0)
{
AVectorHelper.EmitCall(Context, Signed
? nameof(AVectorHelper.SatF32ToS32)
: nameof(AVectorHelper.SatF32ToU32));
Context.Emit(OpCodes.Conv_U8);
}
else /* if (SizeF == 1) */
{
AVectorHelper.EmitCall(Context, Signed
? nameof(AVectorHelper.SatF64ToS64)
: nameof(AVectorHelper.SatF64ToU64));
}
EmitVectorInsertTmp(Context, Index, SizeI);
}
Context.EmitLdvectmp();
Context.EmitStvec(Op.Rd);
if ((Op.RegisterSize == ARegisterSize.SIMD64) || Scalar)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
private static void EmitFcvt_s_Gp(AILEmitterCtx Context, Action Emit)
{
EmitFcvt___Gp(Context, Emit, true);
@ -569,4 +637,4 @@ namespace ChocolArm64.Instruction
}
}
}
}
}