R/ARMeilleure/Decoders/OpCode32SimdMovGpElem.cs
2022-09-10 23:03:14 -03:00

51 lines
1.6 KiB
C#

namespace ARMeilleure.Decoders
{
class OpCode32SimdMovGpElem : OpCode32, IOpCode32Simd
{
public int Size { get; }
public int Vd { get; }
public int Rt { get; }
public int Op { get; }
public bool U { get; }
public int Index { get; }
public new static OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCode32SimdMovGpElem(inst, address, opCode, false);
public static OpCode CreateT32(InstDescriptor inst, ulong address, int opCode) => new OpCode32SimdMovGpElem(inst, address, opCode, true);
public OpCode32SimdMovGpElem(InstDescriptor inst, ulong address, int opCode, bool isThumb) : base(inst, address, opCode)
{
IsThumb = isThumb;
Op = (opCode >> 20) & 0x1;
U = ((opCode >> 23) & 1) != 0;
var opc = (((opCode >> 23) & 1) << 4) | (((opCode >> 21) & 0x3) << 2) | ((opCode >> 5) & 0x3);
if ((opc & 0b01000) == 0b01000)
{
Size = 0;
Index = opc & 0x7;
}
else if ((opc & 0b01001) == 0b00001)
{
Size = 1;
Index = (opc >> 1) & 0x3;
}
else if ((opc & 0b11011) == 0)
{
Size = 2;
Index = (opc >> 2) & 0x1;
}
else
{
Instruction = InstDescriptor.Undefined;
return;
}
Vd = ((opCode >> 3) & 0x10) | ((opCode >> 16) & 0xf);
Rt = (opCode >> 12) & 0xf;
}
}
}