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16889: Practical Examples of Invoking High Level Assembler Exits and Why They are Useful

Thursday, March 5, 2015: 1:45 PM-2:45 PM
University (Level 4) (Sheraton Seattle)
Speaker: Robert Schreiber(ColeSoft Marketing, Inc.)
  • Presentation Slides (2.0 MB)
  • Presentation Slides with speaker notes (3.8 MB)
  • The power of the High Level Assembler language cannot be fully realized without the use of the assembler's exit facilities. This session provides practical examples of two simple exits and how to code them in a general framework for writing other exits. At the end of the session you will be able to write, compile, and install your own exits.
    The first exit that we demonstrate shows how to remove ASA and Machine carriage controls from the SYSPRINT listing and replace them with blank lines. This is useful for viewing listings with text editors that do not understand them and renders the SYSPRINT pages more naturally.
    The second exit that we present demonstrates how to inspect and modify source code by implementing a new format for statement labels.
      is converted into
    Other possible exits would be to
    1) enforce coding standards
    2) inject automated commentary
    3) control SYSLIB under Unix System Services
    Free source code is provided, with the usual disclaimers, at

    Speaker: Robert Schreiber, Sr. Architect, ColeSoft

    Tracks: Application Development, z/OS Systems Programming and z/VM Systems Programming
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    See more of Project: LE and Programming Languages
    See more of Program: Application Architecture Development