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Change encoding of some fixed-point instructions to not allow invalid encodings

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This commit is contained in:
gdkchan 2019-02-12 18:32:02 -02:00
parent 9432bf0411
commit 2e98dc0f96
2 changed files with 6 additions and 12 deletions
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9
ChocolArm64/Decoders/OpCodeSimdCvt64.cs
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@ -8,18 +8,9 @@ namespace ChocolArm64.Decoders
public OpCodeSimdCvt64(Inst inst, long position, int opCode) : base(inst, position, opCode)
{
//TODO:
//Und of Fixed Point variants.
int scale = (opCode >> 10) & 0x3f;
int sf = (opCode >> 31) & 0x1;
/*if (Type != SF && !(Type == 2 && SF == 1))
{
Emitter = AInstEmit.Und;
return;
}*/
FBits = 64 - scale;
RegisterSize = sf != 0

9
ChocolArm64/OpCodeTable.cs
View file

@ -310,12 +310,14 @@ namespace ChocolArm64
SetA64("x00111100x101000000000xxxxxxxxxx", InstEmit.Fcvtps_Gp, typeof(OpCodeSimdCvt64));
SetA64("x00111100x101001000000xxxxxxxxxx", InstEmit.Fcvtpu_Gp, typeof(OpCodeSimdCvt64));
SetA64("x00111100x111000000000xxxxxxxxxx", InstEmit.Fcvtzs_Gp, typeof(OpCodeSimdCvt64));
SetA64("x00111100x011000xxxxxxxxxxxxxxxx", InstEmit.Fcvtzs_Gp_Fixed, typeof(OpCodeSimdCvt64));
SetA64("000111100x0110001xxxxxxxxxxxxxxx", InstEmit.Fcvtzs_Gp_Fixed, typeof(OpCodeSimdCvt64));
SetA64("100111100x011000xxxxxxxxxxxxxxxx", InstEmit.Fcvtzs_Gp_Fixed, typeof(OpCodeSimdCvt64));
SetA64("010111101x100001101110xxxxxxxxxx", InstEmit.Fcvtzs_S, typeof(OpCodeSimd64));
SetA64("0>0011101<100001101110xxxxxxxxxx", InstEmit.Fcvtzs_V, typeof(OpCodeSimd64));
SetA64("0x0011110>>xxxxx111111xxxxxxxxxx", InstEmit.Fcvtzs_V, typeof(OpCodeSimdShImm64));
SetA64("x00111100x111001000000xxxxxxxxxx", InstEmit.Fcvtzu_Gp, typeof(OpCodeSimdCvt64));
SetA64("x00111100x011001xxxxxxxxxxxxxxxx", InstEmit.Fcvtzu_Gp_Fixed, typeof(OpCodeSimdCvt64));
SetA64("000111100x0110010xxxxxxxxxxxxxxx", InstEmit.Fcvtzu_Gp_Fixed, typeof(OpCodeSimdCvt64));
SetA64("100111100x011001xxxxxxxxxxxxxxxx", InstEmit.Fcvtzu_Gp_Fixed, typeof(OpCodeSimdCvt64));
SetA64("011111101x100001101110xxxxxxxxxx", InstEmit.Fcvtzu_S, typeof(OpCodeSimd64));
SetA64("0>1011101<100001101110xxxxxxxxxx", InstEmit.Fcvtzu_V, typeof(OpCodeSimd64));
SetA64("0x1011110>>xxxxx111111xxxxxxxxxx", InstEmit.Fcvtzu_V, typeof(OpCodeSimdShImm64));
@ -542,7 +544,8 @@ namespace ChocolArm64
SetA64("01101110<<110000001110xxxxxxxxxx", InstEmit.Uaddlv_V, typeof(OpCodeSimd64));
SetA64("0x101110<<1xxxxx000100xxxxxxxxxx", InstEmit.Uaddw_V, typeof(OpCodeSimdReg64));
SetA64("x00111100x100011000000xxxxxxxxxx", InstEmit.Ucvtf_Gp, typeof(OpCodeSimdCvt64));
SetA64("x00111100x000011xxxxxxxxxxxxxxxx", InstEmit.Ucvtf_Gp_Fixed, typeof(OpCodeSimdCvt64));
SetA64("000111100x0000111xxxxxxxxxxxxxxx", InstEmit.Ucvtf_Gp_Fixed, typeof(OpCodeSimdCvt64));
SetA64("100111100x000011xxxxxxxxxxxxxxxx", InstEmit.Ucvtf_Gp_Fixed, typeof(OpCodeSimdCvt64));
SetA64("011111100x100001110110xxxxxxxxxx", InstEmit.Ucvtf_S, typeof(OpCodeSimd64));
SetA64("0>1011100<100001110110xxxxxxxxxx", InstEmit.Ucvtf_V, typeof(OpCodeSimd64));
SetA64("0x101110<<1xxxxx000001xxxxxxxxxx", InstEmit.Uhadd_V, typeof(OpCodeSimdReg64));