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LDA, GDA and PDAs

 
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nan_ishan

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Joined: 15 Apr 2009
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Location: Pune

PostPosted: Thu Feb 18, 2010 12:32 am    Post subject: LDA, GDA and PDAs
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What is the scope of LDA, PDA and GDA?
In which memory does it reside?
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Ralph Zbrog

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Joined: 21 Nov 2009
Posts: 58
Location: California

PostPosted: Thu Feb 18, 2010 11:36 am    Post subject: Reply to: LDA, GDA and PDAs
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LDA - programming object in which it is located
PDA - caller and callee
GDA - all programs and external subroutines in which it is defined
- a subprogram and all external subroutines it performs
- NOTE: a program's GDA is not available to any subprogram. Even if it has the same name and field definitions, a subprogram's GDA is a separate instance from the program's GDA. (Individual elements of a program's GDA may be passed to a subprogram in a parameter list.)
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