Microsoft Just Released MS-DOS Source Code!

pastermil@sh.itjust.works to Open Source@lemmy.ml – 819 points –
GitHub - microsoft/MS-DOS: The original sources of MS-DOS 1.25, 2.0, and 4.0 for reference purposes
github.com
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Is this useful for hobbyists besides poking around and seeking the design philosophy at work back then?

Like would there be any advantage or reason to implement this in a home project? For example maybe that it's lightweight and has some rare compatibility or anything like that?

I think its interesting from a historical perspective.

I imagine people will examine the code, find easter eggs, bugs, unknown features, amusing comments etc.

I look forward to seeing what is found.

Looking forward to the "when I wrote this code, only god and I knew how it works. Now only god knows" comments.

There are a lot of decades old embedded systems out there. Every so often you hear about a big company still relying on floppy disks and other old tech, including major railways and airplane companies. Having the source code will help with debugging better than having to disassemble or other reverse engineering.

Maybe as a reference, if you want to build another abomination?