←back to thread

Show HN: My from-scratch OS kernel that runs DOOM

(github.com)
320 points UnmappedStack | 3 comments | 24 Apr 25 00:15 UTC | HN request time: 0.591s | source

Hi there! I've been on-and-off working on TacOS for a few months, which follows some UNIX-derived concepts (exec/fork, unix-style VFS, etc) and is now able to run a port of Doom, with a fairly small amount of modifications, using my from-scratch libc. The performance is actually decent compared to what I expected. Very interested to hear your thoughts. Thank you!
1. OSDeveloper ◴[24 Apr 25 18:47 UTC] No.43786086[source]▶
Hey unmapped (I am ThatOSDeveloper on GitHub and discord it's my display name) I never knew you got doom running on it, pretty cool, but I have a few questions, is it the original doom, is it on disk or an initramfs and do you use freedom or the shareware doom wad with the engine you use?
replies(2): >>43786311 #>>43790653 #
2. kleiba ◴[24 Apr 25 19:07 UTC] No.43786311[source]▶
It's doomgeneric, as can be seen in the article, with a fairly small amount of modifications, as can be seen at the top of this page.
3. UnmappedStack ◴[25 Apr 25 06:16 UTC] No.43790653[source]▶
Hi, I use DoomGeneric which is a portable fork of Doom. It's on a TempFS loaded from an initrd. I use doom1.wad.