You. Forth. Simplicity. fossil repository stable release prior releases wiki mailing list and forum irc channel and logs try retro

NgaroImplementations

C

The original system, this is the most complete. It has:

• full execution tracing
• instruction-level statistics, including calls and jumps
• endian conversion
• mapping ascii files as input sources

C#

Based on the Java port, this has since become a superior implementation. It has:

• mapping of ascii files as input sources
• endian conversion

Java Script

For use in browsers and widget engines, this is slower than the other implementations, but works on most of the current generation of browsers.

• full canvas support
• mouse support
• optional saving of images to the server or locally
• optional form-based input for mobile devices

Go

A new addition, this has non-standard extensions for adding concurrency. It's reasonably fast and clean.

Emacs Lisp

The newest addition, it allows running of Retro inside the Emacs editor family. Slow, but very handy if you use Emacs.