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ryubing/ARMeilleure/Decoders/OpCode32SimdRegElem.cs

22 lines
688 B
C#

namespace ARMeilleure.Decoders
{
class OpCode32SimdRegElem : OpCode32SimdReg
{
public OpCode32SimdRegElem(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
{
Q = ((opCode >> 24) & 0x1) != 0;
F = ((opCode >> 8) & 0x1) != 0;
Size = ((opCode >> 20) & 0x3);
RegisterSize = Q ? RegisterSize.Simd128 : RegisterSize.Simd64;
Vm = ((opCode >> 5) & 0x1) | ((opCode << 1) & 0x1e);
if (DecoderHelper.VectorArgumentsInvalid(Q, Vd, Vn) || Size == 0 || (Size == 1 && F))
{
Instruction = InstDescriptor.Undefined;
}
}
}
}