protected final OPT_MemoryOperand MO_BD(OPT_Operand base, int disp,
protected final OPT_MemoryOperand MO_BD(OPT_Operand base, Offset disp,
  protected final OPT_MemoryOperand MO_BD(OPT_Operand base, int disp,                                           byte size, OPT_LocationOperand loc,                                          OPT_Operand guard) {    return OPT_MemoryOperand.BD(R(base), Offset.fromIntSignExtend(disp), size, loc, guard);  }