Portal | Manuals | References | Downloads | Info | Programs | JCLs | Master the Mainframes
IBM Mainframe Computers Forums Index
 
Register
 
IBM Mainframe Computers Forums Index Mainframe: Search IBM Mainframe Forum: FAQ Memberlist Usergroups Profile Log in to check your private messages Log in
 

 

What is meant by ‘double word boundaries’ in COBOL

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> COBOL Programming
View previous topic :: :: View next topic  
Author Message
Yugaswaroopini

New User


Joined: 21 Dec 2007
Posts: 10
Location: India

PostPosted: Wed May 14, 2008 9:18 am    Post subject: What is meant by ‘double word boundaries’ in COBOL
Reply with quote

What is meant by ‘double word boundaries’ in COBOL ?



Ex: both 01 level and 77 levels are aligned on a double word boundary
Back to top
View user's profile Send private message

dick scherrer

Site Director


Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Wed May 14, 2008 10:45 am    Post subject:
Reply with quote

Hello,

"Double Word Boundary" is not specific to COBOL.

Double word boundary refers to an address that is evenly divisable by 8, so addresses that end with 0 or 8. Addresses that end with these are "double word boundary aligned". (And thanks to DBZ for spotting my initial brain fade. . .).

This is important because there are some machine instructions that require double-word boundary alignment.
Back to top
View user's profile Send private message
Yugaswaroopini

New User


Joined: 21 Dec 2007
Posts: 10
Location: India

PostPosted: Wed May 14, 2008 11:35 am    Post subject: Reply to: Double word boundary
Reply with quote

Yeah .. This helps.. Thanks icon_biggrin.gif
Back to top
View user's profile Send private message
dick scherrer

Site Director


Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Wed May 14, 2008 7:15 pm    Post subject: Reply to: Double word boundary
Reply with quote

You're welcome icon_smile.gif

d
Back to top
View user's profile Send private message
View previous topic :: :: View next topic  
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> COBOL Programming All times are GMT + 6 Hours
Page 1 of 1

 

Search our Forum:

Similar Topics
Topic Author Forum Replies Posted
No new posts XML Parse for COBOL 5.2 Bhanu Praveen COBOL Programming 1 Sat Jul 08, 2017 8:58 pm
No new posts Dynamic output file creation in cobol... smileheal COBOL Programming 7 Thu Jun 15, 2017 10:53 pm
No new posts Search utility(3.14) using JCl and Cobol RKS3 COBOL Programming 12 Sat Jun 10, 2017 10:24 pm
No new posts COBOL DB2 program - zIIP eligible vasanthz COBOL Programming 7 Wed May 31, 2017 5:12 am
This topic is locked: you cannot edit posts or make replies. Cobol GUI (like Editor) Kala Mainframe COBOL Programming 14 Wed May 10, 2017 12:30 pm


Facebook
Back to Top
 
Mainframe Wiki | Forum Rules | Bookmarks | Subscriptions | FAQ | Tutorials | Contact Us