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Yugaswaroopini
New User
Joined: 21 Dec 2007
Posts: 10
Location: India
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What is meant by ‘double word boundaries’ in COBOL ?
Ex: both 01 level and 77 levels are aligned on a double word boundary |
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dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19243
Location: Inside the Matrix
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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. |
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Yugaswaroopini
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Joined: 21 Dec 2007
Posts: 10
Location: India
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Yeah .. This helps.. Thanks  |
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dick scherrer
Moderator Emeritus
Joined: 23 Nov 2006
Posts: 19243
Location: Inside the Matrix
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You're welcome 
d |
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