Data chaining was the original solution to this problem. On Wed, 19 Oct 2016 00:27:56 +0200 Peter Hunkeler <p...@gmx.ch> wrote:
:> :>Below discussion triggered a question I could not answer by RTFM. I had never thought about this before in this detail, but now that I do, I wonder if the following is correct. :> :>Program allocates >4k of virtual storage. The real frames backing it may or may not be contiguous. The program wants to use this area with some interface (I/O, etc) that will use real addresses when accessing the storage, so it does a PGFIX. PGFIX would move the possibly non-contiguous frames guaranteeing the area is backed by contiguous frames. After all, the interface using real addresses would expect the the frames to be contiguous. :> :> :>Am I wrong? I would have expected to find this documented with the PGFIX or PGSER FIX macros, but did not find it. -- Binyamin Dissen <bdis...@dissensoftware.com> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
