Geforce posted following lines into our webboards:

A GBA demo I made based on Manulon’s 2003 Text on Mode 4 thing. It’s JUST a demo not better or worse than any of the demos on the site, so dont flame me… im a n00b been programming in C for TWO DAYS. EDIT: Source code made in VisualHAM but it should work in any C editor for GBA (i think). Source + Bin included.

http://www.pdroms.de/phpbb/viewtopic.php?t=167