int disp,
Offset disp,
  public static OPT_MemoryOperand BD(OPT_RegisterOperand base,                                      int disp,                                      byte size,                                     OPT_LocationOperand loc,                                     OPT_Operand guard) {    return new OPT_MemoryOperand(base, null, (byte)0, disp, size, loc, guard);  }