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Show HN: X86CSS – An x86 CPU emulator written in CSS

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

What you're seeing above is a C program that was compiled using GCC into native 8086 machine code being executed fully within CSS.

GitHub ⧸ Fedi, Bluesky, Twitter

Frequently Asked Questions

Is CSS a programming language?

Do you really need to ask at this point?

How??

I plan on writing a blog post that explains how this works as well as many of the tricks used. Bookmark my blog or add it to your RSS reader.

Surely you still need a little bit of JavaScript?

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