On 01/16/2013 04:02 AM, Mark Wickens wrote: If someone is interested, I have published the source code and the basic circuitry I have been using. I have also built a virtual console for the virtual pdp-11. Or if you like it more, a simulation of the simulated console for the simulated PDP-11. http://ancientbits.blogspot.com.es/2013/01/blinkenlights-not-so-difficult-a… Jordi Guillaumes i Pons jg at jordi.guillaumes.name HECnet: BITXOV::JGUILLAUMES PS: This mail _could_ end being duplicated... I apologize for it I was thinking of doing this as a retrochallenge project - it's really cool and stops me from thinking about purchasing a real PDP! which is good - no space *or* money at the moment! I dunno man, doesn't sound too good to me! ;) -Dave -- Dave McGuire, AK4HZ New Kensington, PA