*COMDECK TMD4D2 
_ 
*       M O D E   4   O V E R L A Y 
? 
         1 : (BZ4CCBPTR     : B0BUFPTR;     _PTR TO 1ST CCB ON LINE    ?
              BZ4CURCCB     : B0BUFPTR;     _PTR TO CURRENT CCB        ?
              BZ4ARINPROG   : BOOLEAN;      _AUTO RECOGNITION ACTIVE   ?
              BZ4MLTCLS     : BOOLEAN;      _MULTIPLE CLUSTERS ON LINE ?
              BZ4RECATTEMPT : BOOLEAN;      _RECOVERY ATTEMPT POSSIBLE ?
              BZ4DELAYLINE  : BOOLEAN);     _IDLE LINE DELAY NEEDED    ?
