Specification
Codd's CA has 8-states and the von Neumann neighborhood with rotational symmetry.
The table below shows the signal-trains needed to accomplish different tasks. Some of the signal trains need to be separated by two blanks (state 1) on the wire to avoid interference, so the 'extend' signal-train used in the image at the top appears here as '70116011'.
purpose | signal train |
---|---|
extend | 70116011 |
extend_left | 4011401150116011 |
extend_right | 5011501140116011 |
retract | 4011501160116011 |
retract_left | 5011601160116011 |
retract_right | 4011601160116011 |
mark | 701160114011501170116011 |
erase | 601170114011501160116011 |
sense | 70117011 |
cap | 40116011 |
inject_sheath | 701150116011 |
inject_trigger | 60117011701160116011 |
Read more about this topic: Codd's Cellular Automaton