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Moving working storage section data to Linkage section data

 
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vamseepotti

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Joined: 21 Oct 2003
Posts: 45

PostPosted: Wed Oct 19, 2005 6:31 pm    Post subject: Moving working storage section data to Linkage section data
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One doubt regarding Linkage section. Can we move working storage section data to Linkage section data. If posible how can we code the program.
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Sridevi_C

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Joined: 22 Sep 2005
Posts: 104
Location: Concord, New Hampshire, USA.

PostPosted: Wed Oct 19, 2005 8:49 pm    Post subject:
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Main program's working storage section variable's contents are moved to the sub program's linkage section variables(ie.,parameter passing using CALL). Linkage section can also get value through PARM parameter.
Main pgm:
WORKING-STORAGE SECTION.
77 A PIC 9 VALUE 9.
77 B PIC 9 VALUE 8.
77 C PIC 99.
PROCEDURE DIVISION.
PARA.
....
CALL SUB USING A,B,C.
DISPLAY C.
.....
Sub pgm:
LINKAGE SECTION.
77 X PIC 9.
77 Y PIC 9.
77 Z PIC 99.
PROCEDURE DIVISION USING X,Y,Z.
....
COMPUTE Z = X - Y.
.....
output:1
Also if the sub pgm has working storage variables by itself then those values can be moved to it's own linkage section variables (though automatically it receives value from the calling pgm)during calculation.
I hope it doesn't confuse...
Regards,
Sridevi
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