RyuKen/ARMeilleure/Decoders/OpCode32MsrReg.cs
Mary 501c3d5cea
Implement MSR instruction for A32 (#2585)
* Implement MSR instruction

Fix #1342.

Now Pocket Rumble is playable.

* Address gdkchan's comments

* Address gdkchan's comments

* Address gdkchan's comment
2021-08-27 00:07:44 +02:00

29 lines
909 B
C#

using ARMeilleure.State;
namespace ARMeilleure.Decoders
{
class OpCode32MsrReg : OpCode32
{
public bool R { get; }
public int Mask { get; }
public int Rd { get; }
public bool Banked { get; }
public int Rn { get; }
public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCode32MsrReg(inst, address, opCode);
public OpCode32MsrReg(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
{
R = ((opCode >> 22) & 1) != 0;
Mask = (opCode >> 16) & 0xf;
Rd = (opCode >> 12) & 0xf;
Banked = ((opCode >> 9) & 1) != 0;
Rn = (opCode >> 0) & 0xf;
if (Rn == RegisterAlias.Aarch32Pc || Mask == 0)
{
Instruction = InstDescriptor.Undefined;
}
}
}
}