chrischtel
Show HN: A tool for automatically grading/sorting astrophotography FITS frames
Building an x86-64 instruction encoder in Rust
Re:Building an x86-64 instruction encoder in Rust
on Wednesday October 08, 2025 @02:51AM (#45512915)
I’ve been working on Rask, a small x86-64 instruction encoder written in Rust.
It’s designed for people who want to understand how compilers emit machine code — without the complexity of LLVM or Cranelift.
It currently supports mov/add/sub/ret with correct REX and ModR/M encoding, and includes tests verifying the byte output.
Repo: https://github.com/chrischtel/rask
Feedback welcome, especially from anyone who’s worked on compiler backends or JITs.