I thought this was a good intro into z/OS. I had been playing with MVS on Hercules, and I wanted to have some idea on how MVS and z/OS differed. Is MVS so old that I’m wasting my time learning it? Other than obvious improvements over the years, I found the biggest differentiator is the […]
Just to be complete I thought I’d mention another freely available 3270 terminal emulator on Linux. I briefly tried the c3270, 3270 terminal emulator, it is easy to increase/decrease the font size simply by pressing <Ctrl>+ or – respectively. The thing that wasn’t readily clear to me was how to use special keys such as […]
I really needed larger fonts for the Master the Mainframe course. I used the default x3270 many times using the Hercules emulator but for some reason the smaller font really bothered me in this course. Watched “Setting up x3270 on Linux”, a YouTube video where a guy installed with apt then easily changed the font […]
I changed the first print line to start lower on the form for better looking alignment. I also finally figured out how to use the python module PyPDF2 to crop a little off the left side of the form (thanks to a YouTube video) for better symmetry as well as removing the pesky 1st blank […]
Watching myself stomp all over storage as I re-familiarize myself with IBM mainframe Assembler. Playing with simple packed and register arithmetic. I really like the SNAP macro for looking at registers & storage.
Finally solved a nagging Hercules/MVS problem that has had me stumped for days (card image exceeds maximum 80). After watching the YouTube video… “MVS 3.8 or z_OS – Installing and using the Assist Assembler – M17” which documents Jay Mosley’s Assist Assembler install procedure. I decided I wanted to do the same with 1 exception…I […]
Fixed sort04.cob amounts and arithmetic on those fields after figuring out how…again, how IBM COBOL works with these fields. It was working but not displaying amount fields and I had left it that way until I understood why. By working I mean producing output and running to completion. So I guess I should really say […]
I mentioned here something odd and confusing to me. So played with it and certainly can work around it. However I still find it strange that in IBM COBOL, at least this very old version, I can’t move a field defined as 999.99 to another field defined as 999.99. I guess the answer simply is […]
Modified parseJob, my Hercules local prt file extractor (see here) to also parse prt00f.txt. For me prt00e.txt is most useful. There’s also a prt002.txt file, but I didn’t process because I haven’t seen it’s output yet.
Even though I said this wasn’t a high priority, I did some more work on my greenbar program. Seems to do a pretty fair job. Not exactly an example of my finest programming skills. A lot of trial and error rather than properly understanding the process. I think I understood it better a few years […]