(fwd) Re: amode rmode problem

2006-03-22 Thread Clark Morris
On 21 Mar 2006 17:46:17 -0800, in bit.listserv.ibm-main
[EMAIL PROTECTED] (Edward E. Jaffe) wrote:

Tom Savor wrote:
 Ed wrote:
   
 Tom Savor wrote:
 
 Thanks to some enlightenment from Mr Rutledge, all my Assembler programs
 run AMODE(31), RMODE(ANY).
   1). GETMAIN storage location as ANY.
   2). Copy DCB to GETMAINed area
   3). Open file as example:  OPEN  (FILE,(INPUT)),MODE=31
   4). Get File as example:   GET  FILE,AREA
   5). Close file as example: CLOSE (FILE),MODE=31

   
 #1 above GETMAIN location should be BELOW or 24 -- not 31 or ANY.
 

 Sorry Ed, but the GETMAIN location is set to ANY.
 If the DSORG is PO, then I use BELOW for READ and WRITE processing of PDS.
 But for normal QSAM processing and my example, program is set to ANY.
   

Then I must be confused about what it is you're doing with this GETMAIN. 
DCBs must (MUST!) be below 16MB in all cases because, among other 
things, the pointer to the DCB from the DEB is only three bytes long! 
LOC=ANY implies 31-bit storage (though it *could* actually be satisfied 
from 24-bit storage if 31-bit storage is exhausted -- very unlikely). We 
_are_ talking about the *first* (or only) LOC= subparameter, right? The 
second subparameter controls only the location of the real storage when 
the page is fixed.

Why the unprintable hasn't IBM extended the ACB to handle at least
QSAM (and parenthetically allowed concatenation of ESDS and QSAM data
sets)?  To have to go through the aggravation of getting 24 bit
storage in 2006 is one minor symptom for the mainframe not have good
long term prospects.

Naturally, the above has nothing whatsoever to do with the location of 
your program. Your program can reside anywhere.

-- 
Edward E Jaffe
Phoenix Software International, Inc
5200 W Century Blvd, Suite 800
Los Angeles, CA 90045
310-338-0400 x318
[EMAIL PROTECTED]
http://www.phoenixsoftware.com/

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Re: (fwd) Re: amode rmode problem

2006-03-22 Thread Blaicher, Chris
I think z/OS has very good long term prospects just because of what you
think is a symptom.

Because of downward compatibility, a program written 30+ years ago can
still work today.  Things introduced post 31-bit addressing use it.

The problem I see for z/OS is what people use it for.  Its role has
changed from just a batch job machine to a giant server.  In terms of
capacity to handle a tremendous number of online queries, it can not be
beat.  Which is why UPS, FedEx and most all large companies rely on the
z/Series machines to support their critical workloads.

Christopher Y. Blaicher
BMC Software, Inc.
Austin Development Labs
(512) 340-6154
The comments made are my personal opinions. BMC Software, Inc. makes no
representations or promises regarding the reliability, completeness, or
accuracy of the information provided in this discussion; all readers
agree not to rely on this information or take any action against BMC
Software in response to this information.

-Original Message-
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Clark Morris
Sent: Wednesday, March 22, 2006 10:34 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: (fwd) Re: amode rmode problem


Why the unprintable hasn't IBM extended the ACB to handle at least
QSAM (and parenthetically allowed concatenation of ESDS and QSAM data
sets)?  To have to go through the aggravation of getting 24 bit
storage in 2006 is one minor symptom for the mainframe not have good
long term prospects.

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Re: (fwd) Re: amode rmode problem

2006-03-22 Thread Gerhard Adam
To have to go through the aggravation of getting 24 bit storage in 2006
is one minor symptom for the mainframe not have good long term
prospects.


You're joking right?  We're talking about a minor and pretty
insignificant piece of coding to basically maintain downward
compatibility with code that is several decades old.  It is only of
concern for Assembler language programmers who aren't exactly the most
abundant element in I/T.

So, why should this play into the mainframe's long-term prospects?

Adam

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(fwd) RE: (fwd) Re: amode rmode problem

2006-03-22 Thread Clark Morris
On 22 Mar 2006 09:47:12 -0800, in bit.listserv.ibm-main
[EMAIL PROTECTED] (Blaicher, Chris) wrote:

I think z/OS has very good long term prospects just because of what you
think is a symptom.

Because of downward compatibility, a program written 30+ years ago can
still work today.  Things introduced post 31-bit addressing use it.

I have no problem with IBM functionally stabilizing the DCB to protect
existing programs.  I have a major problem with them not coming up
with a clean way to access those data set organizations which were not
functionally stabilized without having to get 24 bit storage.  Indeed
we have a major shift coming with 64 bit.  IBM COBOL already seems to
be steadfastly ignoring it and XPLINK as well.  We have the ludicrous
situation where instead of implementing the 2002 COBOL standard
floating point usages and declaring them to be IEEE floating point
leaving COMP-1 and COMP-2 to remain hex floating point, IBM has a glue
routine when interfacing with JAVA.  I have a major problem with IBM
not handling FBA devices despite the fact that all of the strategic
access methods (VSAM, PDSE, databases) are FBA.  There are still 24
bit modules in TSO and TSO is functionally stabilized despite there
still not being a follow-on.

The problem I see for z/OS is what people use it for.  Its role has
changed from just a batch job machine to a giant server.  In terms of
capacity to handle a tremendous number of online queries, it can not be
beat.  Which is why UPS, FedEx and most all large companies rely on the
z/Series machines to support their critical workloads.

Christopher Y. Blaicher
BMC Software, Inc.
Austin Development Labs
(512) 340-6154
The comments made are my personal opinions. BMC Software, Inc. makes no
representations or promises regarding the reliability, completeness, or
accuracy of the information provided in this discussion; all readers
agree not to rely on this information or take any action against BMC
Software in response to this information.

 rest snipped

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