Hi folks, I wanted to share with you my recently completed Project using the awesome Papilio Duo platform wit the Classic Computing Shield. It's a migration of Grant Searle's brillant work called MULTICOMP, consisting in a flexible FPGA based architecture for implementing old style 8 bit Retro-computers using Z80, 6502 & 6809 "Soft-core" CPU's.
Below is the link to the Showcase article on this site.
Cheers,
José Luis.