ProSystem is the best emulator of Atari 7800 game console, running on M$ system.
It has been written by Greg Stanton, see Greg's site for details.
I've successfully modified, and port the source code of the version v1.0
and it's now working fine on PSP !
This is a first release and some features are still missing,
such as sound or fit screen mode etc ...
It has been developed on linux for Firmware 1.5 and i hope it works also
for 2.x using the great eloader (0.99x) from http://www.noobz.eu/.
How to use it ? Everything is in the README.txt file.
Sources are included, and this package is under the GNU public license,
read COPYING.txt file for more information about it.
Special thanks to all PSPSDK developers,