On Sun, 17 Jul 2011 18:09:44 -0400 Peter Relson <rel...@us.ibm.com> wrote:

:>The z/OS 1.13 support is for a program to be able to survive the things 
:>that programs cannot typically avoid -- such as external and I/O 
:>interrupts, page faults.

:>If you can get your program up there (whether by yourself or by use of 
:>"directed load" (LOAD with ADDR64), and if it calls no system routines of 
:>any kind (whether by branch, SVC, or PC), then have at it.  You cannot 
:>LINK, LOAD (wtihout ADDR64), ATTACH, XCTL, SYNCH or IDENTIFY to something 
:>above 2G.

I can understand why SVC would not work as there ain't nowhere to save the
full PSW. And branching in AMODE64 to a routine that does not expect it would
lead to astonishment.

But the hardware does the entire PC process. The stack entry has plenty of
room for the entire PSW. One wonders why the residency would have an effect
(with the exception of LOC=RES which may incorrectly determine the RMODE of
the caller).

:>This should not be construed to imply that further support will be 
:>forthcoming.

--
Binyamin Dissen <bdis...@dissensoftware.com>
http://www.dissensoftware.com

Director, Dissen Software, Bar & Grill - Israel


Should you use the mailblocks package and expect a response from me,
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I very rarely bother responding to challenge/response systems,
especially those from irresponsible companies.

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