0AAB2 | 
 PORTSTATUS
 | 
( #port → present? writeable? merged? #size #addr ) 
Returns information for port.
 | 
0AB22 | 
 (PORTEND)
 | 
( #port → #addr ) 
Gets end address of port.
 | 
0AB82 | 
 NEXTLIBBAK
 | 
( #addr → backup/library #nextaddr ) 
Gets next library or backup.
 | 
0B409 | 
 (MERGE)
 | 
( #port →  ) 
Merges specified port. Only works for port
one.  Checks if wrong port number was
entered.
 |