[vcf-midatlantic] Mystery code

Bob Flanders bob.flanders at gmail.com
Sat Jul 22 02:05:46 EDT 2017

This is definitely s/370 or s/390 code for CICS. I noted the "mystery03"
page uses the DFHEIENT macro, which is for CICS. Here's a reference to that


The 1990 dates shown is MVS era .. but also DOS/VSE era. CICS ran under


On Fri, Jul 21, 2017 at 9:03 PM, Neil Cherry via vcf-midatlantic <
vcf-midatlantic at lists.vintagecomputerfederation.org> wrote:

> On 07/21/2017 07:57 PM, Adam Michlin via vcf-midatlantic wrote:
>> Hi Everyone,
>> Way before my day, I'm trying to help someone identify some code that his
>> father (who
>> passed away) left him. Sure looks like it must be mainframe or mini from
>> back in the day:
>> http://ceos.io/mystery/
>> Two pictures of code and one of the (redacted) father's resume.
> Not an expert but it looks like IBM assembly to me (Mainframe 370).
> like the stuff I did in college.
> --
> Linux Home Automation         Neil Cherry       ncherry at linuxha.com
> http://www.linuxha.com/                         Main site
> http://linuxha.blogspot.com/                    My HA Blog
> Author of:      Linux Smart Homes For Dummies

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