Cocytus

Cocytus is an esoteric programming language inspired by the ninth circle of Dante's Hell. It features exact finite dyadic arithmetic, reversible byte transformations, bounded memory with limited access counts, and a deterministic 640x400 raster display. Its compiler is self-hosted and proven to reproduce its own executable state through multiple compilation passes, aiming for a fixed point. Cocytus is designed as a challenging, deterministic esolang with unique semantics and operational rules.