On 3/23/2012 12:59 AM, Scott Bennett wrote:
I am trying to find documentation or examples that show how I can utilize
(I assume) register 1 to access the value of the arguments from a caller to
my assembler routine executed under USS.
For example, if my routine was called from USS as:
$ myroutine arg1 arg2
How can I get the value arg1 and arg2?
Thanks!
Well, here's an extract from our course "Developing
Applications for z/OS UNIX" (I went on a hunt for the
original source and couldn't find it; I know it's
documented out there, but it always takes me a long
time to re-locate it, so simplest just to pass along
the result from earlier work):
R1 -> list of seven words
word 1 -> fullword counter: number of parms passed
word 2 -> pointer -> table of parm lengths (one fullword each)
word 3 -> pointer -> table of parm addresses
word 4 -> fullowrd counter: number of environment variables available
word 5 -> pointer -> table of env var lengths (one fullword each)
word 6 -> pointer -> table of env var addresses
word 7 -> word 1
HTH.
More info on the related course:
http://www.trainersfriend.com/UNIX_and_Web_courses/u520descr.htm
--
Kind regards,
-Steve Comstock
The Trainer's Friend, Inc.
303-355-2752
http://www.trainersfriend.com
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