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REENTER command

The REENTER command starts the current fork  at  its  alternate  entry
point.


Format

     @REENTER (PROGRAM)


Characteristics

     Using REENTER

          The REENTER command  starts  your  program  at  the  address
          specified  by the second word in the program's entry vector.
          For most programs this address is contained in location 124.
          Usually  the REENTER and START commands start the program at
          the same point, but another re-entry point can  be  provided
          to  avoid initialization procedures, perform error recovery,
          or to use the program in a different way.


Hints

     Further Information

          For more information about entry vectors,  see  the  TOPS-20
          Monitor Calls Reference Manual.


Related Commands

     GET       for placing an executable program in memory

     LOAD      for loading a source or object program into memory

     START     for entering a program at its normal entry point


Examples

     1.  Give the REENTER command for your current program.

         @REENTER

     2.  Begin running a program, then give a CTRL/C to leave  it  and
         obtain  a  file.   Resume  execution  of  the  program at the
         alternate entry point.

         @R DUMPER
         DUMPER>^C
         @ACCESS PS:<P.SPECCINI>
         Password:___
         @COPY PS:<P.SPECCINI>USR.FIL
          PS:<P.SPECCINI>USR.FIL.1 => USR.FIL.1 [OK]
         @END-ACCESS PS:<P.SPECCINI>
         @REENTER
         DUMPER>