What Paul can't separate in his mind is that a machine can have larger registers than it has memory addresses (i.e. 32-bit registers but 24-bit AMODE).
Thats where most of this is coming from ... his attempts to make the mainframe be a PC. For instance, if you look at his PDOS, the command processor is named command.com. He wants the mainframe to behave like a big PC-DOS box, and so he is trying to impose the same limitations/constraints, etc. Joe On Thu, May 10, 2018 at 7:45 AM, Seymour J Metz <sme...@gmu.edu> wrote: > Actually, the 32 bit registers go back *before* S/370. The issue is > compatibility of AMODE24 code. > > > -- > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3 > > ________________________________________ > From: IBM Mainframe Discussion List <IBM-MAIN@listserv.ua.edu> on behalf > of Paul Edwards <mutazi...@gmail.com> > Sent: Thursday, May 10, 2018 6:50 AM > To: IBM-MAIN@listserv.ua.edu > Subject: Re: GETMAIN LOC=32 > > On Wed, 9 May 2018 20:45:46 -0500, Joe Monk <joemon...@gmail.com> wrote: > > >Once again, you dont comprehend. > > > >IBM 370 can run XA (31-bit) (a la 3084). They CANNOT run AMODE 64. > > And non-XA IBM 370 CANNOT run AMODE 31. > So what? What's your point. Yes, I know some > hardware supports AM24 only, some supports > AM31 and AM24, and some supports ALL of > AM64, AM31 and AM24. > > Ideally, when you are producing a load module > that uses the 32-bit registers found all the way > back to non-XA 370, it should be AMODE-neutral > and run in ALL THREE AMODEs. > > >Everything you are doing with your "32-bit" shenanigans will not work on > >real IBM 370 hardware because it cannot run AMODE 64. > > It doesn't need to. That's why the gods invented z/Arch > because IT CAN run AMODE 64. > > BFN. Paul. > > ---------------------------------------------------------------------- > 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 > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
