On the Vogon forums, user MarkDastedt posted an interesting bit of source code he discovered on an old company DVD: a very basic, very rudimentary implementation of multicore support for DOS. Another user, dartfrog, took a closer look and had this to say: Interesting stuff nonetheless. A worker core is running with no interrupt handlers, no page tables, no memory protection, and no OS. That’s about as close to bare metal as you can get, meanwhile the other core is still running DOS. Fascinati...

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