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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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40
ARMeilleure/Decoders/OpCodeAluImm.cs
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@ -1,40 +0,0 @@
using System;
namespace ARMeilleure.Decoders
{
class OpCodeAluImm : OpCodeAlu, IOpCodeAluImm
{
public long Immediate { get; }
public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCodeAluImm(inst, address, opCode);
public OpCodeAluImm(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
{
if (DataOp == DataOp.Arithmetic)
{
Immediate = (opCode >> 10) & 0xfff;
int shift = (opCode >> 22) & 3;
Immediate <<= shift * 12;
}
else if (DataOp == DataOp.Logical)
{
var bm = DecoderHelper.DecodeBitMask(opCode, true);
if (bm.IsUndefined)
{
Instruction = InstDescriptor.Undefined;
return;
}
Immediate = bm.WMask;
}
else
{
throw new ArgumentException(nameof(opCode));
}
}
}
}