Hey, I STILL use Assembly Language for programming. Love it. Now I am trying to convert some of the old programs I wrote in Basic back in the TI-99/4A days to run under linux using Visual C++ and it’s a chore.
The fact that these people wrote a light and fast OS in assembler that can actually work stably with all the hardware out there today, using a GUI no less, and will run Quake and Doom as well is truly impressive.
Now I would expect Quake and Doom would have to be recompiled with the new operating system in mind. Surely it won't run the straight Windows version? If it does, then perhaps they did retain Microsoft Windows function calls.