==> LA R7,5 Put 5 in register 7
It depends on the intended target audience. Now I and you know that a 5 is put
in Register 7, but many shops have only a couple Assembler Programmers....but
many more Cobol programmers. Telling "them" that a 5 is put in Register 7 can
be helpful to solving a problem or learning what a program does.
Way too many Cobol programmers that I run into are scared of looking at
Assembler...like just looking at it or trying to learn it is going to give you
Ebola...so even very basic instructions can be helpful...especially if
Instruction says LA 7,5 then it really helps "them".
Thanks,
Tom
-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of
Seymour J Metz
Sent: Wednesday, June 16, 2021 11:58 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: EXTERNAL: Coding for the future
Long ago in a galaxy far away, they handed each of us a stack of manuals and
told use that we were all enrolled in a 7070 class and had to read all of the
manuals before the class started. It turned out that some of the students were
answering questions that stumped the instructor, and that if you read the
manuals you didn't need the course.
The worst are the ones that score based on the quantity of comments instead of
their quality. That guaranties cluttered and unhelpful comments. People will
behave in such a fashion as to optimize how their organization ranks them; if
teir grades or performance reviews depend on doing something sub-optimal, then
that's what they'll do. Measure the things that actually matter.
I generally frown on marking students down on stylistic issues like labels on
separate lines, but I will mark down for
LA R7,5 Put 5 in register 7
Don't tell me what LA does, tell me why you're putting that value in that
register. If there is nothing useful to say in the comment, then omit it.
--
Shmuel (Seymour J.) Metz
https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmason.gmu.edu%2F~smetz3&data=04%7C01%7Cthomas.savor%40fisglobal.com%7Cbe99c6f1bde54085afe408d930df9961%7Ce3ff91d834c84b15a0b418910a6ac575%7C0%7C0%7C637594559179362403%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=kaKOh28RkIFxgof3dWR3QMgfWMAyZeQ8ijJ7XLqXpXE%3D&reserved=0
________________________________________
From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of
Phil Smith III [li...@akphs.com]
Sent: Wednesday, June 16, 2021 11:17 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: EXTERNAL: Coding for the future
Crawford, Robert C. wrote, in part:
>Oh, and I used to this:
>LOOP MVC HERE,THERE
>And now do this:
>LOOP DS 0H
> MVC HERE,THERE
Yes, I was taught that early. Then I took a Commodore SuperPet assembler class
(after writing 370 assembler for several years). That assembler had no
DS 0H
but it did have
EQU *
So I used that-and was marked down for it. At that point, I stopped taking the
class seriously.
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