Presentation materials from the November 2002 UNITE Conference in Baltimore, Maryland.
Click on a link to view or download the slides, notes, or sample files.
Using the WEBPCM (AS4026)
The WEBPCM is a part of the COMS Custom Connect Facility (CCF).
Its purpose is to connect the Atlas Web Transaction Server to
COMS. Using the WEBPCM, you can easily develop programs to
process HTTP requests from web browsers and generate dynamic
HTML responses entirely within the MCP environment. This approach
allows you to implement web-based applications while leveraging
existing skills for COMS, DMSII, and the standard MCP programming
Paul will discuss the features and capabilities of the WEBPCM, describe the general structure of a COMS program that uses the WEBPCM to respond to browser requests, and demonstrate such a program written in COBOL. Attendees will get the most from this presentation if they have experience with COMS direct window programming and understand the basics of HTML and HTTP.
|Slides & Notes||Presentation slides and notes in Adobe Acrobat .PDF (370K)|
|Sample program||A sample WEBPCM program in COBOL-74 (PWB format, 270K) [revised 2002-11-18]|
|Compressed archive||Presentation and sample program source in a standard ZIP archive (298K)|
Understanding MCP Programdumps -- Parts I & II (AS4027)
MCP program dumps are an extremely useful way to diagnose and
understand program faults and abnormal terminations. They can
also be used as an ad hoc debugging tool. Reading a dump
requires, however, that you first understand the basics of the
E-mode architecture used with MCP systems.
In Part I of this presentation, Paul will introduce the E-mode architecture and discuss the word formats, memory addressing schemes, and basic instruction set concepts that are necessary to understand what is in a program dump and how to find it.
In Part II, Paul will discuss the types of dumps, how to generate program dumps, options for controlling dumps, the structure of dumps, and both how to track instruction flow and how to find the values of data elements. Paul will focus on specific techniques for reading dumps from Algol, COBOL-74, and COBOL-85 programs.
|Slides & Notes||Presentation slides and notes in Adobe Acrobat .PDF (206K)|
|Algol samples||Sample Algol program and annotated programdump|
|COBOL-74 samples||Sample COBOL-74 program and annotated programdump|
|COBOL-85 samples||Sample COBOL-85 calling program and called library with annotated programdumps|
|Compressed archive||PowerPoint file, sample program sources, compilation listings, and programdumps (not including the images of annotated dumps) from the links above in a standard ZIP archive (212K)|
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