On 9 Feb 2009 15:33:19 -0800, in bit.listserv.ibm-main you wrote: >-----Original Message----- >From: IBM Mainframe Discussion List [mailto:[email protected]] On >Behalf Of Ivan Warren >Sent: Monday, February 09, 2009 5:23 PM >To: [email protected] >Subject: Re: Assembler Question > >Hopefully.. > >BAL/BALR will still be around.. It's been around since S/360 and it's >here to stay. > >That's the power of the architecture.. > >Please.. find *ONE* single architecture that's still capable of running >programs written 45 years ago ! > ><SNIP> > >Discussed this very thing with a person who used to work on Burroughs >systems. > >Seems that UNISYS systems that are patterned after the Burroughs >machines are able to run programs that old. Not sure about the UNIVAC >side of the house. > >Seems that the BUNCH had a common idea at some point of protecting the >investment that their clients made in software.
Thsey are able to run programs for which there is source in one of the higher level languages (the B5000, B5500, B6500, etc. series machines operating system was written in Algol). Various upgrades have required recompiles. On the other hand, COBOL 74 is still supported for that series of machines which I believe is now the A series. > >(BUNCH - Burroughs Univac Ncr Cdc Honeywell -- if I remember correctly). > >Regards, >Steve Thompson > >PS. BAS and BASR were implemented on the S/360-20. Because it only had >16 bit registers, not the full 32 of its bigger siblings. > >-- Opinions posted by this poster may not be those of poster's employer. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
