>>-AND--address_1--address_2--+-----------------------+--------->
                              |         .-4-------.   |   
                              '-LENGTH(-+---------+-)-'   
                                        '-integer-'       

   .-NOPOINTER-.                                
>--+-----------+--+-------------------------+------------------->
   '-POINTER---'  +-ARFROM(register_number)-+   
                  '-ALETFROM(alet_value)----'   

>--+-----------------------+-----------------------------------><
   +-ARTO(register_number)-+   
   '-ALETTO(alet_value)----'