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An optimizing brainfuck interpreter in js
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README.md

Gir is an optimizing brainfuck interpreter in Javascript.

Name

𒌋𒀜 gir (Sumerian) - n. kiln

License

Everything in the repo is under Unlicense / CC0.

Status

Gir can parse, prettyprint, and run programs in brainfuck. Gir supports following optimizations:

  • Turn runs of +- or <> into one command
  • Turn [-] or [+] into one command
  • Add offsets to commands that modify tape, to reduce moving tape head
  • Turn multiply loops into one command

TODO

gir.js

  • Implement :;#
  • Make VM and transformMultiplyLoops use a Proxied object that gives out 0 for nonexistent elements for tape and allows using [] interface
  • Keep a cache of compiled programs in run()
  • Support for other types of EOF?

gir.html

  • Implement a UI

Documentation

  • Document the VM
  • Document the user-facing API
  • Document the overall architecture

General

  • Get this on NPM?