-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of David Andrews
Sent: Friday, July 27, 2007 8:35 AM
To: [email protected]
Subject: Re: KEY8 CSA: Pro/JCL and Info/XE

On Thu, 2007-07-26 at 15:39 -0400, Jim Mulder wrote:
> A V=R (ADDRSPC=REAL) job step is assigned a key from the 10-15 range.

I think Bob Rogers mentioned a handful of shares ago (maybe Dallas?)
that he was considering "optimizing it out"; he left the impression that
V=R was a short timer.  Are there any V=R users around anymore?
<SNIP>

Well, kinda, Yes. While the following are not truly V=R users, they (at
the time I was working at STL on development) were able to use KEYS
10-15. (These are AI languages).

IBM Prolog for 370: USERKEYs 8-15. Modified before it went GA because of
CICS mangling 9, to use 10-15. 

The Integrated Reasoning Shell (TIRS) was able to do the same in its
subsystem interface (which it shared with Prolog).

I understand that TIRS is no longer owned by IBM, and Prolog moved to
Europe (for development) and I've lost track of it.

I mention these because DAT (this was in MVS/SP3 days), after MASTER got
control, was ALWAYS on, whether V=R or not. So the use of user keys
provided certain protection without getting into system keys. So
products that are using the user keys (10-15) are protected across
address spaces just as key8 is now.

This may not be what Dave had in mind, but this type of thing needs to
be considered for CSA usage.

Regards,
Steve Thompson

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