I thought that everyone using TSO Data set Utilities: COPY, FORMAT, LIST and MERDE, 5734-UT1, had converted to ASI TSO Superset (http://asisoft.com/products/tso-superset-utilities) long since.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Jesse 1 Robinson <jesse1.robin...@sce.com> Sent: Tuesday, December 17, 2019 12:58 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Backward compat--how far? We experienced a lot of brouhaha during Y2K preparation over the ancient and venerable TSO Utilities: COPY/MERGE/... Their link edit dates were in the early 1970s. We had to fight up the chain of command to avoid deleting them. Of course they work as well--or poorly--today as they did in 1999. Sometimes reason can prevail. As for ISAM, IBM provided a transparent conversion to VSAM in the 1980s. No application code changes, but a huuuge improvement in performance. No charge. . . J.O.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 323-715-0595 Mobile 626-543-6132 Office ⇐=== NEW robin...@sce.com -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Seymour J Metz Sent: Tuesday, December 17, 2019 9:47 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: (External):Re: Backward compat--how far? Lots of OS/360 code can still be run unchanged. Some will take an ABEND S0C4 due to accessing unassigned storage; that problem shouldn't exist for code written for an OS/VS2 or MVS/SP system. ISAM may be an issue for some code, as may BTAM and QTAM.. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Rupert Reynolds <rreyno...@cix.co.uk> Sent: Monday, December 16, 2019 3:47 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Backward compat--how far? Another question, purely out of interest: Can the old MVS/SP code still run unchanged? I reminisced with a friend about the day he whinged about a 64k code segment size on Intel micros and I out-whinged him with a 4k code CSECT :-) Can a modern z/OS installation still assemble, link and run the old stuff, such as the typical local utilities we all saw: MYPROG CSECT MYPROG RMODE ANY MYPROG AMODE 24 STM 14,12,12(13) USING ... If so, that's quite an achievement, both in the changes and the flexibility of the original design! Rupert ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
