Thanks a lot,
it would be always better to give even a very small ASSEMBLER program a
test run
instead of simply posting it to a public web site.
I will fix this on Wikipedia as soon as I can.
I'm not sure if ASSEMBLER should be used by humans :-) given this episode.
In fact, it was used in the past (heavily), because in the 1950s and
1960s, it was the only language we had.
And it is still used on Mainframes (some say: Mainframe Assembler is the
only usable Assembler, all others are not)
and as long as we have large code bases in Assembler, there is no other
way than supporting it
(and we have large code bases, this is what John Ehrman once told me ...
most customers who still have that
don't want to talk about it).
Anyway: the reasons to learn it (like: to understand the code produced
by other language translators better etc.
and to understand language translators, BTW) are very valid, and that's
what Ray Mullins (liebe Grüße)
tells in his papers, too, if I understand him right.
Another fun story:
Once a co-worker of mine (at the large insurance company mentioned
earlier) had a problem with IBM software,
and while communicating with IBM, he posted a bit of ASSEMBLER code
showing the error, and the answer of
IBM support was "Customer should not use ASSEMBLER" :-)
Kind regards
Bernd
Am 06.09.2023 um 05:44 schrieb Tom Brennan:
Your sample assembled fine but abended 0C1. I made some minor mods.
Hope you don't mind my pretend German in the comments :)
The biggest problem is trying to use R15 as a base. That gets messed
up by OPEN. The other problem is LA instead of L when loading R13 for
the return. I mix those up a lot myself.
https://www.mildredbrennan.com/mvs/hello.png
P.S. My wife and I were in München last May. Beautiful city and it
was fun trying to understand the language based on a high-school class.
On 9/5/2023 6:19 PM, Bernd Oppolzer wrote:
FWIW:
ChatGPT could have used this ASSEMBLER program, which I posted some
years ago
to German Wikpedia ... this does not do the addition of two integers,
but instead it
is a simple Hello World program. In contrast to the program provided
by ChatGPT,
it has no errors (I hope) and it will work.
https://de.wikipedia.org/wiki/Liste_von_Hallo-Welt-Programmen/Assembler#IBM-Mainframe-ASSEMBLER
Kind regards
Bernd
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