ARMeilleure/Decoders/OpCode32AluImm.cs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

using ARMeilleure.Common;

namespace ARMeilleure.Decoders
{
    class OpCode32AluImm : OpCode32Alu, IOpCode32AluImm
    {
        public int Immediate { get; }

        public bool IsRotated { get; }

        public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCode32AluImm(inst, address, opCode);

        public OpCode32AluImm(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
        {
            int value = (opCode >> 0) & 0xff;
            int shift = (opCode >> 8) & 0xf;

            Immediate = BitUtils.RotateRight(value, shift * 2, 32);

            IsRotated = shift != 0;
        }
    }
}