blob: f4185cfcb4486b93d790d392a6f8c15a08507661 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
using ARMeilleure.Instructions;
using System;
using System.Numerics;
namespace ARMeilleure.Decoders
{
class OpCodeT16MemMult : OpCodeT16, IOpCode32MemMult
{
public int Rn { get; }
public int RegisterMask { get; }
public int PostOffset { get; }
public bool IsLoad { get; }
public int Offset { get; }
public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCodeT16MemMult(inst, address, opCode);
public OpCodeT16MemMult(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
{
RegisterMask = opCode & 0xff;
Rn = (opCode >> 8) & 7;
int regCount = BitOperations.PopCount((uint)RegisterMask);
Offset = 0;
PostOffset = 4 * regCount;
IsLoad = inst.Name switch
{
InstName.Ldm => true,
InstName.Stm => false,
_ => throw new InvalidOperationException()
};
}
}
}
|