JH> I don't know of anyone doing the VAX architecture in a FPGA. JH> JH> One of the most popular (and best) PDP-11 implementation in FPGA is the JH> PDP2011 project of Sytse van Slooten at JH> https://pdp2011.sytse.net/wordpress/ JH> Thanks John! I'll check it out right now. dave