On 14 Jan 2015 16:57:26 -0800, in bit.listserv.ibm-main you wrote: >>Hi,I am looking for COBOL compiler option to compile our COBOL programs in = >>64 Bit mode.Please lead me if you have such a experience .The COBOL version= >> is 4.2 on Z9 with z/OS 1.12. Best regardsManshadi > >AMODE 64 COBOL is still being worked on here at IBM. > >I (like the other poster) would like to know what you would do with AMODE 64 >COBOL? >Also, does everyone realize that AMODE 64 code will run slower than AMODE 31 >code? >We assume that AMODE 64 COBOL will be used for very specialized one-off cases >to solve specific business problems, and that in general 99% of code will be >compiled for AMODE 31 even after we ship AMODE 64 COBOL. > > Unlike AMODE 31, which we expected EVERYONE to move to (still waiting :-) we >do not think very many users will need AMODE 64 in the next 10-15 years. >We are gathering use cases and verifiable needs for AMODE 64 COBOL, so if >you know of any, please SHARE! (get it? :-) > If I were working at a site, 64 bit could be very important if any of the following were true.
1. My COBOL routine is used by 64 bit Java or the current 31 bit routine is holding up a conversion to 64 bit Java. 2. My COBOL routine or program is used by a PL1, HLASM or C/C++ program and there is benefit to upgrading that program to 64 bit and the COBOL program is holding up that conversion because it can't interoperate without severe performance penalty. 3. My COBOL program needs to be upgraded to deal with large binary objects such as pictures or videos. I suspect this would be rare but 15 minutes of HD 60p video at MP4 compression takes 4+ gigabytes. 4. There are features in DB2, CICS or IMS that take advantage of 64 bit and that are available to PL1, HLASM and C/C++ but not COBOL. Enough has changed in the application environment since my last contract (2006) that I am unaware of a lot of the newer application needs. One reason for moving more rapidly on 64 bit is that language choice for an application extension may be forced by the need for 64 bit and while COBOL would be the default choice in a shop, another language would be chosen. Clark Morris > >Cheers, >TomR >> COBOL is the Language of the Future! << > >---------------------------------------------------------------------- >For IBM-MAIN subscribe / signoff / archive access instructions, >send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
