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muralikrishnan · Beginner Joined: 08 Feb 2006 Posts: 19 Topics: 11

Team,
Once again I need your help.
What is meant by saying "COBOL prgs containing SORT/MERGE statements reside above/below 16-megabyte line"?

kolusu · Posted: Wed Feb 22, 2006 10:20 am Post subject:

muralikrishnan,

Before IBM introduced MVS/XA architecture in the 1980's a program's virtual storage was limited to 16 megs. Programs compiled with a 24 bit mode can only address 16 Mb of space, as though they were kept under an imaginary storage line. With COBOL II a program compiled with a 31 bit mode can be 'above the 16 Mb line.

I suggest that you read this post which will help you understand the concept much better

http://www.mvsforums.com/helpboards/viewtopic.php?p=2597#2597

Hope this helps...

Cheers

Kolusu
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Kolusu
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