Once again, you dont comprehend. IBM 370 can run XA (31-bit) (a la 3084). They CANNOT run AMODE 64.
Everything you are doing with your "32-bit" shenanigans will not work on real IBM 370 hardware because it cannot run AMODE 64. Joe On Wed, May 9, 2018 at 8:15 PM, Paul Edwards <[email protected]> wrote: > My "That is not correct" was with regards to the > whole paragraph. Why did you mention a 2 GiB > bar if you are only talking about S/370 machines? > > Parameter lists are not a problem on S/370 > either, since it will be executing in AM24 as > the only choice. ie the 32-bit address registers > in the 32-bit program will be masked down > to 24 bits. > > A trimodal 32-bit module will run just fine > on S/370 MVS 3.8j. > > BFN. Paul. > > > > > On Wed, 9 May 2018 20:04:17 -0500, Joe Monk <[email protected]> wrote: > > >You didn't even read the post. > > > >I specifically said "IBM 370". There isnt an IBM 370 machine out there > that > >can run AMODE 64. > > > >So yes it is correct. > > > >Joe > > > >On Wed, May 9, 2018 at 7:26 PM, Paul Edwards <[email protected]> wrote: > > > >> On Wed, 9 May 2018 19:17:37 -0500, Joe Monk <[email protected]> > wrote: > >> > >> >There is no such thing as a 32-bit load module on any of the platforms > you > >> >have mentioned. > >> > >> You're quibbling over semantics. A program that > >> uses 32-bit data registers and 32-bit address > >> registers and 32-bit code pointers and 32-bit > >> data pointers is a 32-bit load module. > >> > >> >IBM 370 machines running MVS 3.8J (OS/VS2 3.8) are incapable of running > >> >32-bit code due to their use of the high bit for passing parameter > lists, > >> >which is the entire reason for the existence of the 2GB-4GB bar. > >> > >> That is not correct. You can run in AMODE 64 > >> so long as you step down to AMODE 24/31 > >> (wherever you were loaded) prior to executing > >> whatever code requires the parameter list > >> convention. You also need to obtain the memory > >> for the parameters from 31-bit storage. AM64 > >> means that 32-bit modules no longer need to > >> be constrained by the 2GiB bar, which is the > >> entire reason for this thread. > >> > >> BFN. Paul. > >> > >> ---------------------------------------------------------------------- > >> 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 > > ---------------------------------------------------------------------- > 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
