On Thu, 10 May 2018 08:24:18 -0500, Joe Monk <[email protected]> wrote:
>"Allowing 32-bit registers to address 32-bit virtual >addresses is not a limitation/constraint. It is the >ultimate you can get from a 32-bit register." > >It is if it breaks all existing code in the process. Not ALL existing code is broken in the process. Especially not code that has already been converted to run as AM31. > You can't take away >what you call the "crap byte" in BALR and expect > existing code to continue to run. This is a matter of defining "best programming practices" and noting that you can't rely on the BALR crap byte and still have your program work as AM31. Or AM64 either for that matter. BFN. Paul. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
