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-----Original Message-----
From: "Knutson, Sam" <[EMAIL PROTECTED]>
Sent: 7/24/2006 5:12 AM
To: "[email protected]" <[email protected]>
Subject: Re: Program Call (PC) routine in AMODE(64)
It might have been ideal if IBM had in fact supported the ETDEAM bit in
z/OS R3 but as it apparently didn't you are going to have to have
exception code anyway. IBM is not going to service unsupported releases
and even on supported releases unless they defined Yet Another Flag
somewhere like the CVT how would you know the APAR fix was installed?
My .02 is be happy it has been added and that it will work from r8 going
forward. Code logic for releases prior to r8. If running on R8 or >
NOP, else if running on R3 & z/ARCH do the SAM64, else NOP. In your
first release to mandate R8 as a minimum supported code level you can
remove the code.
Despite Art Bell's assertion to the contrary I have not seen a working
time machine and this train already left the station. Nothing IBM can
do is going to save you work or provide any significant benefit or
capability to business customers so why even ask. I would bet all get
out of a PMR is a doc update so it might be easier to send a reader's
comment form instead so they update the R8 publications to document it
was new at R8.
Best Regards,
Sam Knutson, GEICO
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The main issue is my PC service routines are called by anyone
on old boxes or newer boxes.
If that caller happens to be an AMODE(64) routine, they
must perform z/OS 1.8 test. If they try to call my PC routine
in AMODE(64), they will abend unless I have set the ETDEAM bit.
So my callers are stuck with adding logic to switch amodes and
test CVT flags. sigh...
Jeffrey D. Smith
Farsight Systems Corporation
24 BURLINGTON DR
LONGMONT, CO 80501
303-774-9381 direct
303-709-8153 cell
303-484-6170 fax
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