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 it should 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

-- 
  Walt

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