Dev.to Security 🔐 Cybersecurity Thu, 10 Sep 2026 15:02:50 +0000 👁 2 📖 1 min read

Silica: Testing Every AArch64 Instruction Encoding

I wanted to see what happens when you compare real AArch64 decoders across the entire 32-bit encoding space, so I built Silica. It checks all 4.3B encodings against Arm's spec, LLVM, Capstone, and Unicorn. I'm still dig

Nathan Luevano

Posted on Sep 10

Silica: Testing Every AArch64 Instruction Encoding

#ai #rust #security #programming

I wanted to see what happens when you compare real AArch64 decoders across the entire 32-bit encoding space, so I built Silica.

It checks all 4.3B encodings against Arm's spec, LLVM, Capstone, and Unicorn. I'm still digging through some of the stranger disagreements.

https://github.com/Nathan-Luevano/silica

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