Show HN: A simple Unix-like operating system that runs Doom

Re:Show HN: A simple Unix-like operating system that runs Doom by tinktank on Saturday September 07, 2019 @11:00AM (#20904139)

This is awesome. How long did it take you and how familiar were you with the low-level details before you started?

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Re:Show HN: A simple Unix-like operating system that runs Doom by ozkl on Saturday September 07, 2019 @11:20AM (#20904298)

Thanks. I think it would take 8 months night works. But it took longer because of breaks. I was always interested in low-level stuff especially about syscalls (how they jump to kernel from userspace). So, I was familiar with syscall internals and memory protection. But I learnt all including how paging is done in x86 when I was writing Soso thanks to OSDev.

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Re:Show HN: A simple Unix-like operating system that runs Doom by eterps on Saturday September 07, 2019 @02:28PM (#20905605)

Any books or other resources you used for guidance?

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