Type ASSEMBLE
Source Lines : 289
Fixes Applied : 0
Most Recent Version : Tuesday, December 12, 1978
Last Fix ID : [Unmodified]

Module

       DMSOPT  ( OPTION )

Function

       PROVIDE THE FACILITY TO SET DOS/VS DEFAULT OPTIONS
       IN THE COMMUNICATION REGION FOR USE BY ANY DOS/VS
       PROGRAM. ALSO, IF NO OPTIONS ARE SPECIFIED IN THE
       COMMAND LINE, ANY PREVIOUS USER MODIFIED DEFAULT
       OPTIONS ARE SET TO THEIR ORIGINAL DEFAULT VALUE.

Attributes

       DISK RESIDENT MODULE
       REENTRANT
       EXECUTES IN TRANSIENT AREA

Operation

       1. SET UP NECESSARY ADDRESSABILITIES AND SAVE
          THE RETURN REGISTER. ACQUIRE SUPERVISOR KEY
          AND INITIALIZE SOME REGISTERS. VERIFY IF IN
          CMS/DOS ENVIRONMENT.

       2. CHECK THE COMMAND LINE FOR VALID PARAMETERS
          (DOS/VS OPTIONS) AND SET THE PROPER OPTION
          FALGS IN THE COMMUNICATIONS REGION FOR EACH
          VALID OPTION SPECIFIED.

       3. IF NO PARAMETERS WHERE SPECIFIED AFTER THE
          COMMAND NAME IN THE COMMAND LINE, THE NON-
          STANDARD OPTION BYTES IN THE COMMUNICATIONS
          ARE RESET WITH THE STANDARD DEFAULT OPTIONS
          FOR THE CMS/DOS ENVIRONMENT.

       4. WHEN ALL PROCESSING HAS BEEN DONE, A SWITCH
          TO PROBLEM PROGRAM KEY IS DONE, AND A RETURN
          TO THE CALLER IS MADE PASSING IN REG. 15 THE
          RETURN CODE OF THE COMMAND.

Calls to Other Routines

       NONE