Re: interview questions

On Wed, 30 May 2007 06:32:31 -0500 "Michael Mattias" <mmattias@xxxxxxxxxxxxxx>
wrote:

:>(FWIW, I remember S0C3 and S0C4 are more common than the other two, but
:>darned if i can tell you what each means. I think one is invalid address and
:>one is numeric exception? Oh well, that's why the manual exists, so you can
:>look 'em up when they happen.)

S0C3 is quite rare when unforced (and is often used to force an abend). It is
the execute of an execute (maps to interrupt code 3). I prefer an 0C6.

S0C4 is the catch-all for accessing or modifying storage that either does not
exist in your virtual memory or is protected. Maps to many different interrupt
codes, including 4, x'10' and x'11'.

S0C7 is the decimal data exception (program interrupt 7)

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

Director, Dissen Software, Bar & Grill - Israel


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