I believe this is more of a limitation of CICS itself and not COBOL.  Neither 
C/C++ nor PL/I 64-bit applications are supported under CICS.  Even for 
assembler only non-LE programs are allowed to use AMODE(64).

________________________________
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of 
Savor, Thomas (Alpharetta) <thomas.sa...@fiserv.com>
Sent: Wednesday, January 1, 2020 12:39 AM
To: IBM-MAIN@LISTSERV.UA.EDU <IBM-MAIN@LISTSERV.UA.EDU>
Subject: Re: Enterprise COBOL 6.3 and IBM Programmer Tools

If I read the Manual correctly, only Batch is 64-bit supported.  CICS is not 
64-bit supported.
I have many DB2 programs that run Batch and Online, so I guess they will have 
to be forced to run as 31-bit.

Thanks,

Tom Savor
-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of 
Charles Mills
Sent: Tuesday, December 24, 2019 2:57 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Enterprise COBOL 6.3 and IBM Programmer Tools

  ⚠ EXTERNAL MESSAGE – Think Before You Click



A wild guess is that a debugger will need significant upgrades to support 
64-bit storage, a key feature of COBOL 6.3 as I understand things.

Charles


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