If you are going to include OS compatibility as well as hardware compatibility then there are issues such as control blocks that have been moved above line.
Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Seymour J Metz Sent: Thursday, July 2, 2020 9:07 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: z/OS use of "legacy" programming languages > The only thing which might not work would > be something which was CPU speed dependent. That's not the only thing. A program that relies on getting certain program interrupts might fail. Then there's the ASCII bit, although I would be very surprised if anybody actually used it. There are optional instructions that IBM carried over. There's probably more that I haven't thought of. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
