The Punctilious Programmer IBM Mainframe Assembler BRC and BRCL Instruction Lessons

BRC and BRCL Instruction Lessons

I’ve added lessons on two relative branch operands that have become fundamental tools for “baseless” programs:  Branch Relative on Condition and Branch Relative on Condition Long.  You can try out these instructions in VisibleZ as well.  Upload the new Codes directory for some sample object code programs, or build your own.

Along with these lessons, I cleaned up some links on the assembler page and added links to all the lessons in three formats (PDF, DOCX, HTM).

I’m working on an assembler book that will organize and combine the information you can find on the site.  I hope to complete it over the next few months.  If you have special requests for topics you would like me to include, email me your suggestions.  I’d like to know the instructions you’re using that aren’t represented here.

7 thoughts on “BRC and BRCL Instruction Lessons”

  1. “I’ve added lessons … Branch Relative on Condition and Branch Relative on Condition Long.”


    … with the .htm and .docx versions yet to be added? The links for those:
    … all return a 404 error as of 4-Dec-2015

    Love your site! Definitely “best of breed” on the web!

    1. Thanks for the kind words, David. I’ve already learned a lot from your linkedin Mainframe Assembler Professionals group. There’s a lot of serious experience and good adivce to be found there! Thanks for hosting it.

  2. I am unable to access the above links. Particularly, interested in Branch Relative Program code. Getting the following Server Error:
    404 – File or directory not found.
    The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable.

    1. The links on the IBM Mainframe Assembler page appear to be working. I’ll copy them here just in case:

      If you are using a link from an old post, it’s possible the link may be incorrect – I had to move lots of material a few months ago.
      You should be able to access informationa about each instruction from a table on the opening page. Let me know if you have a problem.

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