How did you get the DUCT address?

On Mon, 27 Jan 2025 13:37:00 +0000 Joseph Reichman
<000005812645a43c-dmarc-requ...@listserv.ua.edu> wrote:

:>It’s time to FESS up I got this running under TESTAUTH trying to implement 
TRAP2
:>
:>I moved the address of the trap control block at X’2C’ bit 0 of this address 
was zero at bit 31 I turned that on to enable trap
:>I was in key zero supervisor state
:>
:>Does it matter that the TCB it was running under had a TCBPFK of x’80’
:>
:>Don’t expect too many people to know as it’s not something done everyday
:>
:>But Binyamin seems to have run across almost everything
:>
:>Thanks
:>
:>Get Outlook for iOS<https://aka.ms/o0ukef>
:>________________________________
:>From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of 
Binyamin Dissen <00000662573e2c3a-dmarc-requ...@listserv.ua.edu>
:>Sent: Monday, January 27, 2025 8:31:09 AM
:>To: IBM-MAIN@LISTSERV.UA.EDU <IBM-MAIN@LISTSERV.UA.EDU>
:>Subject: Re: Explanation of TCBPFK
:>
:>Strangely enough, PIC-5 was not wrapped into 0C4.
:>
:>Of course, PIC-5 cannot occur with DAT (unless, I guess, the page or segment
:>table entry points to non-existant storage).
:>
:>
:>On Mon, 27 Jan 2025 11:33:42 +0000 Seymour J Metz <sme...@gmu.edu> wrote:
:>
:>:>To clarify, an S0C4 can have any of the interrupt codes 4, 10, 11, 2B, 38, 
39, 3A, 3B, and only 4 can relate to the protection key.
:>:>
:>:>Does anybody have any statistics on the relative frequencies of S0C4 IC 4 
for key mismatch, fetch protect, low storage protect, page protect and segment 
protect?
:>:>
:>:>--
:>:>Shmuel (Seymour J.) Metz
:>:>http://mason.gmu.edu/~smetz3
:>:>??? ?????????? ???
:>:>?????? ??????????? ???? ??????????
:>:>
:>:>
:>:>
:>:>________________________________________
:>:>From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of 
Seymour J Metz <sme...@gmu.edu>
:>:>Sent: Sunday, January 26, 2025 10:07 PM
:>:>To: IBM-MAIN@LISTSERV.UA.EDU
:>:>Subject: Re: Explanation of TCBPFK
:>:>
:>:>External Message: Use Caution
:>:>
:>:>
:>:>Way back in the dawn of history, IBM did something that appalled me, and 
you are the latest victim. While for other S0Cx ABENDs the last digit 
identifies the program interrupt code, for S0C4 there are multiple possible 
interrupt code, and 0004 is not the most common. Most likely you got a 0010 or 
0011, or the Z equivalent.

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

Director, Dissen Software, Bar & Grill - Israel

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