"PSW bit 30 can be used to signify that an application is running AM32."
Whats the ROI to the customer for IBM spending the $$$ to research and modify all of the micro/macro/OS code to allow bit 30 to be anything other than 0? You have to realize that the prices are going to increase to cover those costs from IBMs point of view... Its not a one man job to allow that to happen. Joe On Wed, Apr 3, 2019 at 7:18 PM Paul Edwards <[email protected]> wrote: > I was thinking that z/Arch and z/OS could > be updated to support AMODE 32. > > If a load module is marked AMODE ANY, > RMODE ANY it could signify that it is > 32-bit clean. That combination is > currently not really used, and the linker > can be updated to accept this combination. > > PSW bit 30 can be used to signify that an > application is running AM32. > > The BSM instruction can use bit x'4000 0000' > to get/set AM32. This introduces a 1 GiB > restriction where the module should not > be loaded above if it needs to switch > AMODEs to call READ etc. But that's another > restriction that could be lifted in z/OS. > z/OS can instead switch to AM31 itself, > with the READ code being located below 1 GiB. > > 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
