Hi Peter,

Thanks very much for your answers.  Perhaps I should be more specific about my 
questions:

What is the range of numbers for an SVC routine that is invoked by SVC 109 that 
are reserved for IBM use?

What is the entire range that can be user-written SVC routines that are invoked 
by SVC 109?

Can a user-written SVC routine invoked by SVC 109 be a type-3 or type-4, or is 
it only type-4?  

Surely, if there is a link to the docs that you can point me to where I can 
read this, I'm happy to do the work myself. (-: I just didn't find it (yet).

Happy Holy Days!
Lindy

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of 
Peter Relson
Sent: Friday, December 22, 2006 2:50 PM
To: [email protected]
Subject: Re: Question about SVC 109

SVC 109 by itself might be said to consist of just a table which identifies
the extended SVC routines. That table is treated the same as a type 2 SVC,
being in the nucleus, and having its name formed by the standard nucleus
SVC convention of "IGC" concatenated to the decimal SVC number.

The extended SVC routine that a user provides are expected to be in LPA
(which is part of the definition of a type 3 / type 4 SVC).

Peter Relson
z/OS Core Technology Design
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html

Reply via email to