IBM Mainframe Discussion List <[email protected]> wrote on 03/05/2009 01:47:25 PM:
> On Thu, 5 Mar 2009 10:31:55 -0600 Walt Farrell <[email protected]> wrote: > > :>On Thu, 5 Mar 2009 16:00:35 +0200, Binyamin Dissen > :><[email protected]> wrote: > :> > :>>I am getting a PIC-4/S0c4 in IEANUC01.IEATTIME+04FE with the PSW in 31 bit > :>>mode. Backtracking in the dump I see it doing an EREG 1,1 when itshould be > :>>doing an EREGG if it supports 64bit. > :> > :>According to the book, only a limited set of MVS assembler programming > :>services support invocation in 64-bit addressing mode, and only a more > :>limited set of the services support parameters above the bar. > :> > :>See > :>http://publibz.boulder.ibm.com/cgi- > bin/bookmgr_OS390/BOOKS/IEA2A990/1.2?SHELF=EZ2ZO10L&DT=20080601235844&CASE= > :> > :>or http://preview.tinyurl.com/b9alno > > Maybe I am missing something obvious, but what is the big deal in that a PC > routine supports a 64 bit caller if it can't support 64 bit parameters? I did not see anything in the book which makes judgements as to what is or is not a "big deal". The book simply states facts about interfaces. In many cases, an SVC or Stacking PC routine can support a 64-bit addressing mode caller without any changes to the routine. Supporting 64-bit parameters usually requires significant changes to the routine. Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
