Do you mean only that IBM has changed the underlying hardware used to implement what they called Machine Interface (MI) on the S/38, or do you mean that they have changed the MI itself?
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [[email protected]] on behalf of Clark Morris [[email protected]] Sent: Wednesday, July 1, 2020 9:56 PM To: [email protected] Subject: Re: z/OS use of "legacy" programming languages [Default] On 1 Jul 2020 14:43:51 -0700, in bit.listserv.ibm-main [email protected] (Seymour J Metz) wrote: >Comfort isn't the only issue. When they change the law such that the code no >longer complies, then you have to bite the bullet and update it? Lost the >source code? There could be legal consequences. YMMV. > >There used to be an operating system with no support for running from an >object deck; the compilers were fast enough that it wasn't an issue. I >sometimes think they had the right idea. That reads like MUMPS or AS400/IBM-i. I know AS400/IBM-i have changed instruction sets. Clark Morris ---------------------------------------------------------------------- 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
