Yeah, i meant he was correct that R15 didnt have the EP. Sorry for the confusion.
Joe On Sun, Aug 17, 2025 at 11:49 AM Jon Perryman <[email protected]> wrote: > On Sun, 17 Aug 2025 11:08:32 -0500, Joe Monk <[email protected]> wrote: > > >"At the begining of a rmode64 pgm to look at the register values and > >register 15 didn’t have the entry point " > > > >Correct. > > Incorrect, the doc clearly says AMODE64 (not RMODE64). I wonder how IBM > handled the transition of existing AMODE64 programs. > > When the subtask routine is to run in 64-bit addressing mode, it is > expected to use relative branching and register 15 contains a value that > can be used to determine the addressing mode of the issuer of the ATTACH or > ATTACHX macro as follows: > Issuer AMODE 24: X'FFFFF000' > Issuer AMODE 31: X'FFFFF002' > Issuer AMODE 64: X'FFFFF004' > > ---------------------------------------------------------------------- > 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
