amforth is a compact forth interpreter and compiler for the atmel avr atmega micro controller family.
It is implemented in assembly language and forth itself.
It is an interactive system runnung completly on the controller.
It does not need additional hardware beyond a power supply.
A (serial) terminal is a nice to have ;=) amforth is published under the GNU Public License v2 (GPL). amforth implements an ans94 stylish indirect...
preview:
http://amforth.sourceforge.net/
8/16/2007