Uxn is the virtual machine powering the Hundred Rabbits software.

The virtual machine, programmable in Uxntal, is a portability layer with a focus on hosting graphical tools and games. It lives at the heart of the Varvara computer system and this wiki.

• Uxn Instructions: Reference, Tests
• Varvara Devices: Reference, Tests
• Emulators: CLI, GUI(X11)

Stack-machines make for an habitable abstraction for personal computing that allows one to comfortably write programs with assembly to tackle general computation projects with what feels like high-level abstractions!

Original illustrations created
by Rekka Bellum.

• Official Site
• Online: Varvara Repl
• Communities: Mailing List • Forum • Uxnomicon
• Chat: Catlang Discord • #uxn on irc.libera.chat

• 17P04 — Uxn Specification Frozen
• 15B13 — Uxn is born!

incoming drifblim forth macintosh ufx format ulz format uxntal varvara playdate oscean devine lu linvega uxn devlog now lie in it hundred rabbits