How to call an assembler program from another asm program?

Harsh Pawar · New User Joined: 04 Jun 2008 Posts: 25 Location: Noida

It seems to be a very basic instruction:

How do we call an assembler module from another assembler module.
i want the syntax.

And is there anything called static call and dynamic call in assembler like we have in cobol ?

Regards,
Harry

Robert Sample · Posted: Wed Jul 22, 2009 11:36 pm

1 way is to use a V-type address.

Another way is to use the CALL macro, referenced in the Assembler Services manual.

Another way is to use the LINK macro, referenced as well in the Assembler Services macro.

Reading the Assembler Services macro will tell you the syntax, the pitfalls, and all the details of these instructions.

Harsh Pawar · New User Joined: 04 Jun 2008 Posts: 25 Location: Noida

Robert,
thanks for helping.

It would be great if you can provide a link for "Assembler Services manual" for a beginer like me

Also i want to know more about V-type address. If there is a link for it ,please give me that as well.

Regards,
Harry

Robert Sample · Posted: Thu Jul 23, 2009 6:34 pm

www.s390.ibm.com is the web site for IBM stuff in general. Search for HLASM or Assembler Services and you'll find plenty of Assembler material.

Google z/os assembler and you'll get about 485,000 hits -- and there's plenty of good stuff on the first page of results.

There's also an Assembler LISTSERV at www.listserv.uga.edu/archives/asm370.html

Googling z/os assembler v-type can get you plenty of hits, as well. Or look at publib.boulder.ibm.com/infocenter/ratdevz/v7r5/topic/com.ibm.ent.asm.zos.doc/topics/fn1lrmst77.htm

Bill O'Boyle · Posted: Thu Jul 23, 2009 6:39 pm

Harry,

Check out the following Bookshelf link. Although it's for z/OS 1.9, I would say that most of the contents are downward compatible as much of this hasn't changed in years or even decades -

publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/Shelves/IEA2BK81

Regards,

Bill O'Boyle · Posted: Thu Jul 23, 2009 6:41 pm

Robert,

You're too quick to the draw....

Bill