True, but not entirely satisfactorily. Many of the "newer" (FSVO "new") complex instructions have yet to be added to any of the Hercules emulator systems, so "full" emulation as available in zPDT isn't truly available (yet, until/unless more people contribute and make it so).
IMHO IBM could easily make the zPDT system with its developer-level CPU / I/O governors to prevent "production" level performance at a realistic hobbyist cost level. But it seems as if zPDT is just another profit opportunity in their minds, rather than a community-builder. In the long run, community-building will wind up far more profitable, but that view seems not to have penetrated the IBM decision-makers' minds. What would really blow my mind would be regularly released copies of the (in?)famous "Redbook" copy of PoOPS with all the micro- and milli-code documentation which could provide a way to (perhaps) quickly be able to emulate many of the "new" more complex instructions with micro- and milli-code emulation in addition to software emulation of the silicon-implemented instructions. *Never* going to happen of course, because then (heaven forfend!) there could well be a re-incarnation of the "clone wars", but one can dream. Peter -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of John McKown Sent: Tuesday, June 9, 2020 12:50 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: "Everyone wants to retire mainframes" On Tue, Jun 9, 2020 at 11:38 AM Farley, Peter x23353 < peter.far...@broadridge.com> wrote: > John, > > It isn't just the $900 per year for the ADCD OS license. You can’t > legally get ADCD without the ~$5K yearly cost of the zPDT dongle and > Linux hardware emulation layer to run the OS's. That's the real kicker. > > OTOH I wouldn't be surprised if bad-actor state security organizations > (or US security skunkworks organizations for that matter) haven't > already reverse-engineered the zPDT dongle for their own nefarious uses. > Paranoid? Maybe, maybe not. > I have read "elsewhere" that some people got at least some earlier versions of z/OS to run on a PC using Hercules/390. So the "bad actor" states likely can run z/OS. > > Peter -- This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
