Tom,
 
You are write, I would practice so.Thanks again Tom.

Tom Harper <[EMAIL PROTECTED]> wrote:
Mary,

Generally, writing a PC routine is done to provide a service, not to intercept 
a system service. If you just want practice writing a PC routine, then write 
one that does something non-authorized (so that you can't get in too much 
trouble), such as issuing a WTO or something.

Tom 

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED]
Behalf Of mary george
Sent: Friday, September 09, 2005 5:03 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: pc


Thanks Tom.
I basically want to try writing a pc routine.
Could you suggest me few examples that would not cause
any adverse effect.

Tom Harper wrote:
Mary,

It would help us to help you if you could let us know what you are trying to 
accomplish. There is no reason to write a PC routine if it won't help you to 
reach your goal.

Incidentally, if you are trying to intercept all GETMAINs, there are many other 
paths to GETMAIN beside SVC 10, including branch entry GETMAIN (which issues no 
SVCs at all). And if you change the length of GETMAIN requests, you would also 
need to change the length of FREEMAIN requests. This whole concept is fraught 
with peril and pitfalls for the un-initiated. I think such a daunting task 
would be a challenge even for Ed Jaffe and Chris Craddock.

Maybe there is a simpler way to accomplish what you want to do.

Tom Harper 

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