X86-64

A Rust nightly tail-call interpreter for the Uxn/Raven VM delivers strong performance gains on ARM64 versus hand-written assembly, with mixed results on x86 and WebAssembly; the feature is merged in 0.3.0 and defaults to ARM64, highlighting both promise and cross-platform caveats.

Technical guide to a Robin Hood open-addressing hash table with 64-bit slots that pack 32-bit keys/values and use a 75% load threshold with rehashing, plus hardware-ISA considerations.