On Tue, 19 Aug 2014 11:39:11 +0200 Charles Mills <charl...@mcn.org> wrote:
:>I have a callable (non-PC; just basic CALL) that requires APF authorization :>by the caller. It partially operates in Key 0 Supervisor State, but I want :>to allow callers the flexibility to enter in any key and either state. :>I know how to get to and from Supervisor State with MODESET (SVC form). I'm :>familiar with MODESET (SVC form) and have used it a fair amount in the past. :>I can then use IPK and SPKA to save and restore the caller's key, and to get :>to Key 0. :>But what would be the best way to determine whether the caller had entered :>in Supervisor State so I could return to the caller in his original mode :>(and also avoid the overhead of MODESET)? Some sort of "store PSW" :>instruction so I could TM on bit 15? Look at the EPSW instruction. -- 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, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
