I'm sorry, but I don't have to make any changes to my 31 bit programs using CALLs and using 64-bit addressing. We have lots of programs doing both AM31 and AM64 with the only change is the instructions to change the addressing mode. Do you realize how many user programs that have CALLs embedded in the code that would require eliminating the HO X'80' bit? Maybe that is why IBM from the beginning only defined 31 bits instead of 32. Gene In a message dated 4/4/2019 10:37:13 AM Venezuela Standard Time, mutazi...@gmail.com writes:
On Thu, 4 Apr 2019 14:22:16 +0000, Gene Hudders <eshudd...@aol.com> wrote: > How is the system going to interpret the X'80'> used to indicate the end of a > CALL parameter list. This is one of the 32-bit changes, the sameas needs to be done if using AM64. There is a set of changes that need to bedone when going from AM24 to AM31. There is a set of changes that need to bedone when going from AM31 to AM32. There is a set of changes that need to bedone when going from AM32 to AM64. BFN. Paul. ----------------------------------------------------------------------For IBM-MAIN subscribe / signoff / archive access instructions,send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN