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Compiling above 16MB line vs below 16MB compiler options


IBM Mainframe Forums -> CICS
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uma rao
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Joined: 20 Oct 2007
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PostPosted: Tue Oct 23, 2007 12:39 pm
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what is meant by compiling above 16MB line and below 16MB line?
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CICS Guy

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PostPosted: Tue Oct 23, 2007 5:25 pm
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24 bit addressing vs 31 bit addressing.....
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Negi

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Joined: 25 Oct 2007
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PostPosted: Mon Oct 29, 2007 3:05 pm
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Hey CICS guy could you please explain the difference between them, i know the AMODE and RMODE options and use them, they are installation dependant i think, but i do not know why is a option is used?
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itjagadesh

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Joined: 05 Dec 2006
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PostPosted: Sun Nov 25, 2007 11:25 am
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Hi UMA RAO,

AMODE & RMODE are compiler options for a cobol program.
They specify which type of processing .ie)24 bit processing and 32 bit processing.

if u specify AMODE(24) & RMODE(24) - THEN maximum u can use 16MB for working storage space.
if u specify AMODE(an or 31) & RMODE(any or 31) - THEN maximum u can use greater than 16MB for working storage space.
This is the main use of AMODE and RMODE.
Exception : Program compiled with 24 mode cant used in sub module og program compiled with 31 mode
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