Hi R' Shmuel AMV"SH,
"... MERDE ... "
Was that a Freudian Slip or a typo? {;}-?
Regards,
David
On 2019-12-18 17:11, Seymour J Metz wrote:
> I thought that everyone using TSO Data set Utilities: COPY, FORMAT, LIST and
> MERDE, 5734-UT1, had converted to ASI TSO Superset
> (https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fasisoft.com%2Fproducts%2Ftso-superset-utilities&data=02%7C01%7C%7Cc971c13c943f4ead24de08d784075295%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637123039349329554&sdata=5pNxIVvl4Eoos4Ixr7Kvi1uHceisuWl1qlgin4Zh7tQ%3D&reserved=0)
> long since.
>
>
> --
> Shmuel (Seymour J.) Metz
> https://eur01.safelinks.protection.outlook.com/?url=http:%2F%2Fmason.gmu.edu%2F~smetz3&data=02%7C01%7C%7Cc971c13c943f4ead24de08d784075295%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637123039349339565&sdata=w47PKZXX7NfOoELvMJaEDLUCuin7Mv9NvyhDUISHgBw%3D&reserved=0
>
>
> ________________________________________
> From: IBM Mainframe Discussion List <[email protected]> on behalf of
> Jesse 1 Robinson <[email protected]>
> Sent: Tuesday, December 17, 2019 12:58 PM
> To: [email protected]
> 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
> [email protected]
>
> -----Original Message-----
> From: IBM Mainframe Discussion List <[email protected]> On Behalf Of
> Seymour J Metz
> Sent: Tuesday, December 17, 2019 9:47 AM
> To: [email protected]
> 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
> https://eur01.safelinks.protection.outlook.com/?url=http:%2F%2Fmason.gmu.edu%2F~smetz3&data=02%7C01%7C%7Cc971c13c943f4ead24de08d784075295%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637123039349339565&sdata=w47PKZXX7NfOoELvMJaEDLUCuin7Mv9NvyhDUISHgBw%3D&reserved=0
>
>
> ________________________________________
> From: IBM Mainframe Discussion List <[email protected]> on behalf of
> Rupert Reynolds <[email protected]>
> Sent: Monday, December 16, 2019 3:47 PM
> To: [email protected]
> 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
>
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