Digital circuitry simulation

The CAM-8 architecture offers great flexibility and efficiency for the purpose of simulating digital circuitry. Unlike conventional cellular-automata architectures, where in order to go from point A to point B a signal has to step through all the intervening cells, in CAM-8 one can have ``express'' conveyor belts that can carry signals over a long distance in a single step.

In the current embodyment of the CAM-8 architecture, processors are time-shared between a large number of sites---we gave priority to flexibility over raw speed. However, once a circuit-simulation strategy has been successfully developed and evaluated on this platform, one can directly port it to a more dedicated, massively parallel implementation of the same architecture, more appropriate for the high-speed simulation of large circuits.

The following figure shows an 8-bit shift-register with linear feedback, used as a random-number generator, followed by an 8-to-1 multiplexer driven by a 3-bit binary counter.

Postscript Version

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