public override void Encode(Encoder encoder, ref Instruction instr, int operand) => encoder.AddRegOrMem(ref instr, operand, regLo, regHi, allowMemOp: false, allowRegOp: true);
public override void Encode(Encoder encoder, ref Instruction instr, int operand) => encoder.AddRegOrMem(ref instr, operand, Register.None, Register.None, allowMemOp: true, allowRegOp: false);