If someone out there has some idea how it works, compare the code at http://veswiki.com/Videocart_dumper: with the information in this pdf: http://veswiki.com/images/0/05/F3850.pdf Contains timing signals output and such with nice signal timing picures and the complete table of all ROMC states. / Fredric -- __________________________________ * Fairchild Channel F collector extraordinaire * http://go.to/channelf - The Gallery of Channel F