AVRsimulator can be used for debugging firmware for Atmel AVR
Microcontroller. The GUI uses OSF/Motif 2.0 compatible libraries
(LessTif can be used). The program was developed on GNU/Linux but should
also run on other UNIX-like systems.
License: GPL, Contributors are welcome
More information:
http://micha.freeshell.org/avr/index.php
Micha