HP 3000 Manuals

Getting Started as an MPE/iX Programmer Programmer's Guide

Break Mode 

When a process is in control, it reads user input and acts according to
its own rules and conventions.  It is possible to temporarily interrupt
the process to go back to the command interpreter (CI) without exiting
the process and having to restart it.  When this occurs, the CI is
executing in break mode.

Activating the BREAK key interrupts the data communication function of
the terminal.  This can suspend or terminate the process currently
executing (for example, a subsystem or user program).  The program
currently running is interrupted, not the actual MPE/iX command that
started execution of the program; this command may have already completed
execution.  In break mode, you can enter MPE/iX commands and user-defined
commands (UDCs).  When you press the BREAK key, the colon prompt (:)
appears, indicating that your session is in break mode.

The following MPE/iX commands can be interrupted by pressing the BREAK
key.  This action aborts the output of the command, not its action:

     :BYE
     :HELLO
     :HELP
     :LISTF
     :LISTVS
     :REDO
     :REMOTE HELLO
     :REPORT
     :SHOWDEV
     :SHOWIN
     :SHOWJCW
     :SHOWJOB
     :SHOWME
     :SHOWOUT
     :STREAM

The following MPE/iX commands can by interrupted by pressing the BREAK
key.  This action temporarily suspends execution of the command;
execution can be resumed by entering :RESUME.

     :CCXL
     :CCXLG
     :CCXLK
     :COB74XL
     :COB74XLG
     :COB74XLK
     :COB85XL
     :COB85XLG
     :COB85XLK
     :EDITOR
     :FTNXL
     :FTNXLGO
     :FTNXLLK
     :LINK
     :LINKEDIT
     :PASXL
     :PASXLGO
     :PASXLLK
     :RESTORE
     :RUN
     :STORE

MPE/iX 5.0 Documentation