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UNKEEP command

The UNKEEP command cancels the kept status of a fork.


Format

     UNKEEP (FORK) fork

     where:

     fork is one of the following:  Fork name
                                    Fork number
                                         Default - the current fork


Characteristics

     Unkept Forks

          An unkept fork is a fork that is cleared  from  memory  when
          another  program  is  loaded  or  when  the RESET command is
          given.  Forks are normally unkept unless kept with the  KEEP
          or SET PROGRAM KEEP commands.

     Inferior Forks

          The UNKEEP command simultaneously cancels the kept status of
          a superior fork and its inferior forks.


Hints

     More Information

          The UNKEEP command is one of the TOPS-20  multiforking-class
          commands.   For more information about multiforking, see the
          section named  Running  Multiple  Programs  in  the  TOPS-20
          User's Guide.


Effect on Memory

     The UNKEEP command does not immediately affect memory.  It  does,
     however,  allow  a  fork  in  memory  to  be cleared when another
     program is loaded or the RESET command is given.


Related Commands

     INFORMATION FORK-STATUS        for displaying the fork status

     KEEP                           for changing an unkept fork  to  a
                                    kept fork

     RESET                          for clearing forks from memory

     CONTINUE, FORK, FREEZE,        other         multiforking-related
     KEEP, INFORMATION FORK-STATUS, commands
     SET NAME, and SET PROGRAM


Examples

     1.  Give the INFORMATION FORK-STATUS command to display the  fork
         status.   Then,  give  the  UNKEEP command to cancel the kept
         status of the current fork and redisplay the fork status.

         @INFORMATION FORK-STATUS
          => EDIT (1): Kept, HALT at 6254, 0:00:00.6
             FILCOM (2): Kept, ^C from IO wait at 700272, 0:00:00.2
         @UNKEEP
         @INFORMATION FORK-STATUS
          => EDIT (1): HALT at 6254, 0:00:00.6
             FILCOM (2): Kept, ^C from IO wait at 700272, 0:00:00.2

     2.  Display the fork status, and UNKEEP a noncurrent fork.  Then,
         verify the new fork status.

         @INFORMATION FORK-STATUS
          => EDIT (1): HALT at 6254, 0:00:00.6
             FILCOM (2): Kept, ^C from IO wait at 700272, 0:00:00.2
         @UNKEEP FILCOM
         @INFORMATION FORK-STATUS
          => EDIT (1): HALT at 6254, 0:00:00.6
             FILCOM (2): ^C from IO wait at 700272, 0:00:00.2