<snip> > >> And, if MVCDK does not work a byte at a time, what would be a correct >> solution for this? Copy a byte at a time with MVCDK in a loop, like the >> programming example in the POP with the MVCSK instruction? >> > >That should work, though not with great efficiency. Why not just have a >constant containing 256 (or so) blanks, and MVCDK from that? It's a >tradeoff between CPU time and storage, and in the past storage always won, >but these days 256 bytes is generally nothing. You can even put it on a >cache line boundary for extra zip... > </snip>
I thought about that, but since it is a user svc the module is in the PLPA, so I was reluctant to just waste 256 bytes. On second thought, it is a 31 bit module, so perhaps that is the best option. Thanks for pointing out the specific exemption for MVC, I had overlooked that. Kind regards, Erik. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
