On Tue, Nov 21, 2017 at 6:55 AM, Peter Relson <[email protected]> wrote:
> There is no additional documentation and there are no other references > because there is no particular need for there to be. > > If you are using the trap instructions then you know (or need to know) > about the trap control block and that the trap instructions architecture > requires you to provide information controlling the traps within the > dispatchable unit control table (DUCT). This pointer (and the service > behind it) was created so that individual trap exploiters would not code > these updates themselves because they were more likely to get it wrong > than z/OS development is and were more likely not to be in a position to > react to architectural changes (such as happened when z/Architecture was > introduced) than z/OS development is. > > Peter Relson > z/OS Core Technology Design > So, it is GUPI. But it is not going to be documented in a manual such as "Authorized Assembler Services Guide". IOW, as the preacher said in "Blazing Saddles", "Son, you're on your own!" -- I have a theory that it's impossible to prove anything, but I can't prove it. Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
