I would expect x13 when the ddname exists but is not correctly specified; I would be shocked to get an x13 for a missing ddname.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [[email protected]] on behalf of David Spiegel [[email protected]] Sent: Tuesday, July 4, 2023 11:34 AM To: [email protected] Subject: Re: 0C1 abend Hi Shmuel AMV"SH, My experience has been that when the OPEN fails (e.g. missing/incorrect ALLOCATion), the program gets an x13 ABEND and does not get as far as checking DCBxxxxx. Regards, David On 2023-07-04 09:03, Seymour J Metz wrote: > * Failing to test DCBOFOPN after OPEN > > > -- > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3 > > ________________________________________ > From: IBM Mainframe Discussion List [[email protected]] on behalf of > Peter Relson [[email protected]] > Sent: Tuesday, July 4, 2023 8:15 AM > To: [email protected] > Subject: Re: 0C1 abend > > As Tom M mentioned, there are "commonly" encountered general situations. > > It seems the same question would apply to almost any error encountered; > Operation exception is probably one of the easier ones to diagnose in many > cases. > > Some of the "commonly" would be > > * Wild branch to uninitialized storage at which the data is not a valid > instruction > * Branch to 0 because of an uninitialized pointer, at which the data is > not normally a valid instruction > * Use of an instruction that is not valid on the machine on which your > program is running > > Peter Relson > z/OS Core Technology Design > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
