Hi Folks I'ts been a productive Easter ........ Hope you had a nice couple of days also 25 years ago National Semiconductor introduced the SC/MP microprocessor Today I finished the alpha release of an Emulator for the SC/MP. It is written in Visual Basic 6.0 and the sources are included also. Docs and background are also info aviable. The Dutch Elektuur magazine (Elektor) devoted a lot of space 24 years ago to a build-it-yourself SC/MP system. The firstversion came with dip-switches to toggle in binary data into 256bytes of RAM. Fiddeling with a few other switches would lead to running programs and getting output via 8 LEDs. This system is what the emulator emulates. Kinda Altair but with a very simple CPU. I've also dedicated part of my website to this program and will eventually add more SCMP-stuff. You can read about and fetch the proggy at: http://xgistor.ath.cx Go => Vintage Computers => SC/MP Elektor Emulator --------------------------------------------------------------------- Sipke de Wal