diff options
Diffstat (limited to 'ARMeilleure')
| -rw-r--r-- | ARMeilleure/Decoders/OpCodeT32AluImm.cs | 38 | ||||
| -rw-r--r-- | ARMeilleure/Decoders/OpCodeTable.cs | 16 |
2 files changed, 54 insertions, 0 deletions
diff --git a/ARMeilleure/Decoders/OpCodeT32AluImm.cs b/ARMeilleure/Decoders/OpCodeT32AluImm.cs new file mode 100644 index 00000000..0895c29b --- /dev/null +++ b/ARMeilleure/Decoders/OpCodeT32AluImm.cs @@ -0,0 +1,38 @@ +using ARMeilleure.Common; +using System.Runtime.Intrinsics; + +namespace ARMeilleure.Decoders +{ + class OpCodeT32AluImm : OpCodeT32Alu, IOpCode32AluImm + { + public int Immediate { get; } + + public bool IsRotated { get; } + + public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCodeT32AluImm(inst, address, opCode); + + private static readonly Vector128<int> _factor = Vector128.Create(1, 0x00010001, 0x01000100, 0x01010101); + + public OpCodeT32AluImm(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode) + { + int imm8 = (opCode >> 0) & 0xff; + int imm3 = (opCode >> 12) & 7; + int imm1 = (opCode >> 26) & 1; + + int imm12 = imm8 | (imm3 << 8) | (imm1 << 11); + + if ((imm12 >> 10) == 0) + { + Immediate = imm8 * _factor.GetElement((imm12 >> 8) & 3); + IsRotated = false; + } + else + { + int shift = imm12 >> 7; + + Immediate = BitUtils.RotateRight(0x80 | (imm12 & 0x7f), shift, 32); + IsRotated = shift != 0; + } + } + } +}
\ No newline at end of file diff --git a/ARMeilleure/Decoders/OpCodeTable.cs b/ARMeilleure/Decoders/OpCodeTable.cs index ad696104..28650256 100644 --- a/ARMeilleure/Decoders/OpCodeTable.cs +++ b/ARMeilleure/Decoders/OpCodeTable.cs @@ -1048,25 +1048,41 @@ namespace ARMeilleure.Decoders #region "OpCode Table (AArch32, T32)" // Base SetT32("11101011010xxxxx0xxxxxxxxxxxxxxx", InstName.Adc, InstEmit32.Adc, OpCodeT32AluRsImm.Create); + SetT32("11110x01010xxxxx0xxxxxxxxxxxxxxx", InstName.Adc, InstEmit32.Adc, OpCodeT32AluImm.Create); SetT32("11101011000<xxxx0xxx<<<<xxxxxxxx", InstName.Add, InstEmit32.Add, OpCodeT32AluRsImm.Create); + SetT32("11110x01000<xxxx0xxx<<<<xxxxxxxx", InstName.Add, InstEmit32.Add, OpCodeT32AluImm.Create); SetT32("11101010000<xxxx0xxx<<<<xxxxxxxx", InstName.And, InstEmit32.And, OpCodeT32AluRsImm.Create); + SetT32("11110x00000<xxxx0xxx<<<<xxxxxxxx", InstName.And, InstEmit32.And, OpCodeT32AluImm.Create); SetT32("11110x<<<xxxxxxx10x0xxxxxxxxxxxx", InstName.B, InstEmit32.B, OpCodeT32BImm20.Create); SetT32("11110xxxxxxxxxxx10x1xxxxxxxxxxxx", InstName.B, InstEmit32.B, OpCodeT32BImm24.Create); SetT32("11101010001xxxxx0xxxxxxxxxxxxxxx", InstName.Bic, InstEmit32.Bic, OpCodeT32AluRsImm.Create); + SetT32("11110x00001xxxxx0xxxxxxxxxxxxxxx", InstName.Bic, InstEmit32.Bic, OpCodeT32AluImm.Create); SetT32("11110xxxxxxxxxxx11x1xxxxxxxxxxxx", InstName.Bl, InstEmit32.Bl, OpCodeT32BImm24.Create); SetT32("11110xxxxxxxxxxx11x0xxxxxxxxxxx0", InstName.Blx, InstEmit32.Blx, OpCodeT32BImm24.Create); SetT32("111010110001xxxx0xxx1111xxxxxxxx", InstName.Cmn, InstEmit32.Cmn, OpCodeT32AluRsImm.Create); + SetT32("11110x010001xxxx0xxx1111xxxxxxxx", InstName.Cmn, InstEmit32.Cmn, OpCodeT32AluImm.Create); SetT32("111010111011xxxx0xxx1111xxxxxxxx", InstName.Cmp, InstEmit32.Cmp, OpCodeT32AluRsImm.Create); + SetT32("11110x011011xxxx0xxx1111xxxxxxxx", InstName.Cmp, InstEmit32.Cmp, OpCodeT32AluImm.Create); SetT32("11101010100<xxxx0xxx<<<<xxxxxxxx", InstName.Eor, InstEmit32.Eor, OpCodeT32AluRsImm.Create); + SetT32("11110x00100<xxxx0xxx<<<<xxxxxxxx", InstName.Eor, InstEmit32.Eor, OpCodeT32AluImm.Create); SetT32("11101010010x11110xxxxxxxxxxxxxxx", InstName.Mov, InstEmit32.Mov, OpCodeT32AluRsImm.Create); + SetT32("11110x00010x11110xxxxxxxxxxxxxxx", InstName.Mov, InstEmit32.Mov, OpCodeT32AluImm.Create); SetT32("11101010011x11110xxxxxxxxxxxxxxx", InstName.Mvn, InstEmit32.Mvn, OpCodeT32AluRsImm.Create); + SetT32("11110x00011x11110xxxxxxxxxxxxxxx", InstName.Mvn, InstEmit32.Mvn, OpCodeT32AluImm.Create); SetT32("11101010011x<<<<0xxxxxxxxxxxxxxx", InstName.Orn, InstEmit32.Orn, OpCodeT32AluRsImm.Create); + SetT32("11110x00011x<<<<0xxxxxxxxxxxxxxx", InstName.Orn, InstEmit32.Orn, OpCodeT32AluImm.Create); SetT32("11101010010x<<<<0xxxxxxxxxxxxxxx", InstName.Orr, InstEmit32.Orr, OpCodeT32AluRsImm.Create); + SetT32("11110x00010x<<<<0xxxxxxxxxxxxxxx", InstName.Orr, InstEmit32.Orr, OpCodeT32AluImm.Create); SetT32("11101011110xxxxx0xxxxxxxxxxxxxxx", InstName.Rsb, InstEmit32.Rsb, OpCodeT32AluRsImm.Create); + SetT32("11110x01110xxxxx0xxxxxxxxxxxxxxx", InstName.Rsb, InstEmit32.Rsb, OpCodeT32AluImm.Create); SetT32("11101011011xxxxx0xxxxxxxxxxxxxxx", InstName.Sbc, InstEmit32.Sbc, OpCodeT32AluRsImm.Create); + SetT32("11110x01011xxxxx0xxxxxxxxxxxxxxx", InstName.Sbc, InstEmit32.Sbc, OpCodeT32AluImm.Create); SetT32("11101011101<xxxx0xxx<<<<xxxxxxxx", InstName.Sub, InstEmit32.Sub, OpCodeT32AluRsImm.Create); + SetT32("11110x01101<xxxx0xxx<<<<xxxxxxxx", InstName.Sub, InstEmit32.Sub, OpCodeT32AluImm.Create); SetT32("111010101001xxxx0xxx1111xxxxxxxx", InstName.Teq, InstEmit32.Teq, OpCodeT32AluRsImm.Create); + SetT32("11110x001001xxxx0xxx1111xxxxxxxx", InstName.Teq, InstEmit32.Teq, OpCodeT32AluImm.Create); SetT32("111010100001xxxx0xxx1111xxxxxxxx", InstName.Tst, InstEmit32.Tst, OpCodeT32AluRsImm.Create); + SetT32("11110x000001xxxx0xxx1111xxxxxxxx", InstName.Tst, InstEmit32.Tst, OpCodeT32AluImm.Create); #endregion FillFastLookupTable(InstA32FastLookup, AllInstA32, ToFastLookupIndexA); |