On Thu, 4 Apr 2019 09:33:46 -0500, Tom Marchant <m42tom-ibmm...@yahoo.com> wrote:
>>The BSM instruction can use bit x'4000 0000' >>to get/set AM32. > >No, it can't, for compatibility reasons. What are you referring to? I don't see any compatibility problem. >>This introduces a 1 GiB >>restriction where the module should not >>be loaded above if it needs to switch >>AMODEs to call READ etc. > >Yeah. You want to double the available storage, >yet halve the storage available to programs. The storage available to programs is doubled, not halved. It is just the load module that needs to reside below 1 GiB, and even then, that's only if READ hasn't been updated to be AM32-clean. BFN. Paul. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
