Microsoft open sources GWBASIC

Yes, and on some machines, like the IBM 1800, small numeric constants are stored in a common location, to reduce the size of executable images. So, once you've changed 4 to 5, it means that all programs that get loaded will now use 5 when they meant 4. Usually the generated code has a way to refer to zero without using the common constant area, but not numbers like 1 or 2, so setting 1 or 2 to zero will have 'interesting' effects. Especially if the machine is controlling heavy equipment. [I bear witness to the result - been there, did that...] From: "cctalk" <cctalk at classiccmp.org> To: "cctalk" <cctalk at classiccmp.org> Sent: Monday, June 1, 2020 11:40:10 PM Subject: Re: Microsoft open sources GWBASIC On Mon, 1 Jun 2020 at 00:14, Eric Korpela via cctalk <cctalk at classiccmp.org> wrote: I had no idea, and I wrote a lot of FORTRAN for a few years. I just tested the above with the Fortran-77 compiler for my ND-100 mini, and yes, it prints 2+2= 5