The other day I thought it would be neat to develop an open-source AVR core clone for an FPGA. Perhaps even some AVR chip clones including the peripherals. Could get intersting with the possibility of executing program from RAM, an other sorts of flexibilities afforded by having direct access to the internal CPU design.
Of course actually doing such a thing would be way over my head, at least for the next 10 years, depending on how good I might ever get at PLDs.
So I figured I'd ask here about this, since I'm sure the idea has also been pondered by others. Any projects or plans under way? It would also be a great thing for building cheap AVR emulators, and putting the 3rd party tools folks out of business. Maybe they won't be too eager to support such a project.
Just a thought.