source: WorldVistAEHR/trunk/r/VICTORY_PROGRAMMING_ENVIRONMENT-ZVEM/ZVEMSH9.m@ 841

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1ZVEMSH9 ;DJB,VSHL**VA KERNEL [04/17/94]
2 ;;12;VPE;;COPYRIGHT David Bolduc @1993
3 ;
4KERN ;;;
5 ;;; V A K E R N E L
6 ;;;
7 ;;; The following information applies to those users who wish to run the VSHELL
8 ;;; as a VA KERNEL menu option.
9 ;;;
10 ;;; You create the VSHELL option as an Action type: X ^%ZVEMS. The name of the
11 ;;; option MUST include the word 'VSHELL'. This is important. If the name doesn't
12 ;;; include 'VSHELL' it will not run. The purpose for this naming convention is
13 ;;; to enable the VSHELL to know when it's being called as a VA KERNEL menu
14 ;;; option.
15 ;;;
16 ;;; The VSHELL sets a flag when it starts running. This flag prevents you from
17 ;;; starting a 2nd VSHELL. If you try to run the VSHELL menu option and get a
18 ;;; message saying "The VSHELL is already running", and you are not running
19 ;;; the VSHELL already, it's because this flag has not been cleared. You can
20 ;;; clear the flag 2 ways.
21 ;;; 1. Log off the system and log back on with a new $J.
22 ;;; 2. Enter Programmer Mode, kill XQY0, start the VSHELL and then HALT.
23 ;;; This will delete the VSHELL's scratch global, clearing the flag. You
24 ;;; can now DO ^ZU to reenter the VA KERNEL menu system and run the VSHELL
25 ;;; option.
26 ;;;
27 ;;; If you enter the VSHELL from a VA KERNEL menu option, switch UCIs, and then
28 ;;; try to HALT, you will receive a message telling you to move back to the UCI
29 ;;; you first came in from, and then you can HALT.
30 ;;;
31 ;;; NOTE: If you run a VA KERNEL menu option using ^XUP while in the VSHELL, you
32 ;;; may be halted from the system upon return. This is NOT caused by the VSHELL,
33 ;;; but is a factor of the VA KERNEL software.
34 ;;;***
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