diff options
Diffstat (limited to 'ChocolArm64/Decoders/OpCode32BImm.cs')
| -rw-r--r-- | ChocolArm64/Decoders/OpCode32BImm.cs | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/ChocolArm64/Decoders/OpCode32BImm.cs b/ChocolArm64/Decoders/OpCode32BImm.cs new file mode 100644 index 00000000..43f191eb --- /dev/null +++ b/ChocolArm64/Decoders/OpCode32BImm.cs @@ -0,0 +1,29 @@ +using ChocolArm64.Instructions; + +namespace ChocolArm64.Decoders +{ + class OpCode32BImm : OpCode32, IOpCode32BImm + { + public long Imm { get; private set; } + + public OpCode32BImm(Inst inst, long position, int opCode) : base(inst, position, opCode) + { + uint pc = GetPc(); + + //When the codition is never, the instruction is BLX to Thumb mode. + if (Cond != Condition.Nv) + { + pc &= ~3u; + } + + Imm = pc + DecoderHelper.DecodeImm24_2(opCode); + + if (Cond == Condition.Nv) + { + long H = (opCode >> 23) & 2; + + Imm |= H; + } + } + } +}
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