Yes, we send a bug report way back in the 1960's at Shell Oil in Melbourne.
We used COND codes a lot, and it mucked everything up!
Clem
Colin Paice wrote:
I heard that IEFBR14 had the highest "bug rate" per line of code
1) There was no CSECT statement
2) It was not reentrant
3) It did not clear R15 prior to exit
4) It was missing an end statement
I was told this over 40 years ago... and may not be true
On Tue, 5 Sept 2023 at 13:53, Bob Bridges <[email protected]> wrote:
Hey, look at that! I never knew why the famous IEFBR14 was so named; now
I guess maybe I do, though I won't be guessing after I look up the BR
instruction).
---
Bob Bridges, [email protected], cell 336 382-7313
/* The historic case against miracles...consists of calling miracles
impossible, then saying that no one but a fool believes impossibilities:
then declaring that there is no wise evidence on behalf of the miraculous.
The whole trick is done by means of leaning alternately on the
philosophical and historical objection. If we say miracles are
theoretically possible, they say, “Yes, but there is no evidence for them.”
When we take all the records of the human race and say, “Here is your
evidence,” they say, “But these people were superstitious, they believed in
impossible things.” -from "Miracles and Modern Civilisation" by G K
Chesterton */
-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf
Of John Dravnieks
Sent: Tuesday, September 5, 2023 04:24
If you are truly interested in learning System z assembler, then one
resource you could use is the late John Ehrman's book 'Assembler
Programming for IBM System z Servers' - a quick google search should find
it for you.
The reason I am posting this is to mention some macros detailed in
Appendix B - using these macros will hide away a lot of the complexity of
z/OS I/O so you can concentrate on all the other details while you learn.
Here is a simple 'Hello world' program using the Printlin macro from this
set:
*
* Hello world
*
Hello csect
using hello,15
*
PrintLin Heading,l'heading print page hdr
br 14
heading dc Cl28'1 Hello World!'
end hello
By default, Printlin will write the output to the SYSPRINT DD
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