this post was submitted on 24 Feb 2026
63 points (95.7% liked)

Programming

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63
x86 CPU made in CSS (lyra.horse)
submitted 2 weeks ago by cm0002@lemy.lol to c/programming@programming.dev
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[–] MadMadBunny@lemmy.ca 20 points 2 weeks ago (1 children)

They did WHAT?!?!

[–] einkorn@feddit.org 5 points 2 weeks ago

These are truly the end times!

[–] ulterno@programming.dev 6 points 2 weeks ago

Nice.
Now install Doom on it.

[–] ClanOfTheOcho@lemmy.world 6 points 2 weeks ago

Abomination!

[–] spartanatreyu@programming.dev 3 points 2 weeks ago

CSS has been considered turing complete for a long time.

So this isn't a shocking revelation, but it is cool.

[–] yetAnotherUser@lemmy.ca 3 points 2 weeks ago

This is probably way easier to do than making a CSS interpreter for x86 CPUs :P

[–] wibble@reddthat.com -1 points 2 weeks ago (1 children)

Chrome and JavaScript required.

[–] Successful_Try543@feddit.org 10 points 2 weeks ago (1 children)

Chromium yes, but JS?

x86CSS is a working CSS-only x86 CPU/emulator/computer. Yes, the Cascading Style Sheets CSS. No JavaScript required.

[–] elvith@feddit.org 9 points 2 weeks ago (1 children)

They used the JS to provide a stable clock that speeds up the processing, but they also implemented it in CSS only as a fallback, if you haven't enabled scripts

[–] PoY@lemmygrad.ml 2 points 2 weeks ago

so not required