On 2015-09-20 16:54, Tim Ressel wrote: > My first proc was a COSMAC 1802, on a breadboard, with manual entry > switches, powered off a car battery, in a horse barn. (beat that!) https://en.wikipedia.org/wiki/RCA_1802#Code_samples It appears that a valid opcode on that chip is "SEX" (tee hee hee!)