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TSR Berry
2023-04-08 01:22:00 +02:00
committed by Mary
parent cd124bda58
commit cee7121058
3466 changed files with 55 additions and 55 deletions
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34
src/ARMeilleure/Decoders/OpCodeT16MemMult.cs Normal file
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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()
};
}
}
}