[joezydeco]

What would you interface to? I thought the idea of DCPU is that it runs the "ship" in 0x10c.

Why not learn real assembly on a living microprocessor and hook it up to real things? There are some instruction sets, like 6809/68000 or 8051, that are very easy to learn and are a good stepping stone to larger architectures.

I'm a big 6809 fan, and you can synthesize a whole '09 system from opencores.org: http://opencores.org/project,system09

[kuripyon]

There's also been an instruction set/specification released for it (http://www.0x10c.com/doc/dcpu-16.txt). And while yes, within the game the DCPU's main function is to run the ship, you'll note that Notch makes reference to playing games "while you're waiting for X to finish" any number of times. People are already getting interested in the possibility, and it seemed like a fun project for me. More than anything, I was curious whether anyone else was thinking along these lines.

[sybreon]

Already done. https://github.com/sybreon/dcpu16