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Implement some 32-bit Thumb instructions (#3614)

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* Implement some 32-bit Thumb instructions

* Optimize OpCode32MemMult using PopCount
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gdkchan 2022-08-25 06:59:34 -03:00 • committed by GitHub
parent b994dafe7a
commit eba682b767
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13 changed files with 190 additions and 15 deletions
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30
ARMeilleure/Decoders/OpCodeT32MemRsImm.cs Normal file
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namespace ARMeilleure.Decoders
{
class OpCodeT32MemRsImm : OpCodeT32, IOpCode32MemRsImm
{
public int Rt { get; }
public int Rn { get; }
public int Rm { get; }
public ShiftType ShiftType => ShiftType.Lsl;
public bool WBack => false;
public bool IsLoad { get; }
public bool Index => true;
public bool Add => true;
public int Immediate { get; }
public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCodeT32MemRsImm(inst, address, opCode);
public OpCodeT32MemRsImm(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
{
Rm = (opCode >> 0) & 0xf;
Rt = (opCode >> 12) & 0xf;
Rn = (opCode >> 16) & 0xf;
IsLoad = (opCode & (1 << 20)) != 0;
Immediate = (opCode >> 4) & 3;
}
}
}