The DOS assembler supported macros and SET symbols. Charles
-----Original Message----- From: IBM Mainframe Assembler List [mailto:[email protected]] On Behalf Of Rob van der Heij Sent: Saturday, March 11, 2017 7:00 AM To: [email protected] Subject: Re: 50 year old assembler code still running. On 11 March 2017 at 13:52, Tony Thigpen <[email protected]> wrote: > I am working on some REALLY old code. Some of the code has dates back > in 1967! The oldest date found is 5/9/67. > > This code is still running daily. That's as good as 50 years later. > The only reason we are touching the code is because we are migrating > this application from z/VSE to z/OS. > I think that's a very cool find. Wonder how long the original developer had expected the code to be in active use. I read that even a tiny bit of code could be used to determine eating habits and such... Also kind of strange to see it branch to 4 bytes beyond the routine address. And does &NAME show that we already had macros or is that just a label? Maybe if we had IBM Watson analyze early code snippets from various places, we could recognize patterns that influenced developers and find out where the first assembler programmers came from.
