VM_Interface._assert((value & LOGGING_MASK) != LOGGED); VM_Interface.writeAvailableBitsWord(object, value & LOG_MASK);
VM_Interface._assert(value.and(LOGGING_MASK).NE(LOGGED)); VM_Interface.writeAvailableBitsWord(object, value.and(LOGGING_MASK.not()));
  static void makeLogged(VM_Address object)    throws VM_PragmaUninterruptible, VM_PragmaInline {    int value = VM_Interface.readAvailableBitsWord(object);    if (VM_Interface.VerifyAssertions)      VM_Interface._assert((value & LOGGING_MASK) != LOGGED);    VM_Interface.writeAvailableBitsWord(object, value & LOG_MASK);  }