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Add fixed-point variant of the UCVTF instruction

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gdkchan 2019-02-12 17:50:59 -02:00
commit 9432bf0411
2 changed files with 22 additions and 3 deletions
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24
ChocolArm64/Instructions/InstEmitSimdCvt.cs
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@ -349,6 +349,26 @@ namespace ChocolArm64.Instructions
EmitScalarSetF(context, op.Rd, op.Size); EmitScalarSetF(context, op.Rd, op.Size);
} }
public static void Ucvtf_Gp_Fixed(ILEmitterCtx context)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
context.EmitLdintzr(op.Rn);
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U4);
}
context.Emit(OpCodes.Conv_R_Un);
EmitFloatCast(context, op.Size);
EmitI2fFBitsMul(context, op.Size, op.FBits);
EmitScalarSetF(context, op.Rd, op.Size);
}
public static void Ucvtf_S(ILEmitterCtx context) public static void Ucvtf_S(ILEmitterCtx context)
{ {
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp; OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
@ -530,9 +550,7 @@ namespace ChocolArm64.Instructions
context.Emit(OpCodes.Conv_R_Un); context.Emit(OpCodes.Conv_R_Un);
} }
context.Emit(sizeF == 0 EmitFloatCast(context, sizeF);
? OpCodes.Conv_R4
: OpCodes.Conv_R8);
EmitI2fFBitsMul(context, sizeF, fBits); EmitI2fFBitsMul(context, sizeF, fBits);

1
ChocolArm64/OpCodeTable.cs
View file

@ -542,6 +542,7 @@ namespace ChocolArm64
SetA64("01101110<<110000001110xxxxxxxxxx", InstEmit.Uaddlv_V, typeof(OpCodeSimd64)); SetA64("01101110<<110000001110xxxxxxxxxx", InstEmit.Uaddlv_V, typeof(OpCodeSimd64));
SetA64("0x101110<<1xxxxx000100xxxxxxxxxx", InstEmit.Uaddw_V, typeof(OpCodeSimdReg64)); SetA64("0x101110<<1xxxxx000100xxxxxxxxxx", InstEmit.Uaddw_V, typeof(OpCodeSimdReg64));
SetA64("x00111100x100011000000xxxxxxxxxx", InstEmit.Ucvtf_Gp, typeof(OpCodeSimdCvt64)); SetA64("x00111100x100011000000xxxxxxxxxx", InstEmit.Ucvtf_Gp, typeof(OpCodeSimdCvt64));
SetA64("x00111100x000011xxxxxxxxxxxxxxxx", InstEmit.Ucvtf_Gp_Fixed, typeof(OpCodeSimdCvt64));
SetA64("011111100x100001110110xxxxxxxxxx", InstEmit.Ucvtf_S, typeof(OpCodeSimd64)); SetA64("011111100x100001110110xxxxxxxxxx", InstEmit.Ucvtf_S, typeof(OpCodeSimd64));
SetA64("0>1011100<100001110110xxxxxxxxxx", InstEmit.Ucvtf_V, typeof(OpCodeSimd64)); SetA64("0>1011100<100001110110xxxxxxxxxx", InstEmit.Ucvtf_V, typeof(OpCodeSimd64));
SetA64("0x101110<<1xxxxx000001xxxxxxxxxx", InstEmit.Uhadd_V, typeof(OpCodeSimdReg64)); SetA64("0x101110<<1xxxxx000001xxxxxxxxxx", InstEmit.Uhadd_V, typeof(OpCodeSimdReg64));