Microsoft open-sources GW-BASIC

These sources, as clearly stated in the repo's readme, are the 8088 assembly language sources from 10th Feb 1983, and are being open-sourced for historical reference and educational purposes. This means we will not be accepting PRs that modify the source in any way.

Rich Turner

I'm loving all these open source releases from Microsoft, but honestly, I'd wish the pace was a little higher and we'd get to some more recent stuff. Open sourcing early versions of MS-DOS and related software is obviously great from a software preservation standpoint, but at this rate we'll get to more influential pieces of software by the time the sun experiences its helium flash.

On a related note, about a month ago Microsoft released the source code to MS-DOS 4.00. Well, we've now also got access to the code for MS-DOS 4.01, a bugfix release that came out very quickly after 4.00.

Due to various bugs, DOS 4.00 was a relatively short-lived release, and it was replaced by DOS 4.01 just a couple of months later.

Howard M. Harte (hharte), who already fixed various flaws in the official source code release of MS-DOS 4.00, managed to figure out the differences between DOS 4.00 and 4.01 - we now have access to the improved version as well!

Lothar Serra Mari

We're getting a pretty complete picture of early MS-DOS source code.