Parallelogram - C-One extender board
Linus Åkesson made a demo for the extender board of the C-One. The C-One is a FPGA computer developed by Jeri Ellsworth and Jens Schönfeld. The C-One is a modern version of the Commodore C64. For the demo Linus developed a new FPGA core with a new CPU, FM synthesizer and blitter with pixel shader support. The demo won the wild compo at Revision 2012.

Revision 2012 web page.