#MCell 4.00
#GAME Rules table
#RULE 1,0,0,0,0,0,0,0,0,0,0,0,0,2,2,2,2,2,2,2,2,2,0,3,3,3,3,3,3,3,3,3,
#RULE 0,3,1,1,3,3,3,3,3,3
#BOARD 60x60
#SPEED 100
#WRAP 0
#CCOLORS 4
#PALETTE 8 colors
#D Barrier
#D 
#D The most fundamental object in WireWorld is probably a barrier
#D --- a circuit element which blocks pulses arriving from either direction.
#D 
#D In and of itself, it does not amount to much; however it occurs
#D frequently in the following constructions, sometimes participating in
#D schemes circumventing it, sometimes for its ability to block interference.
#D 
#D Harold V. MacIntosh
#L 10.C$A20C$10.C7$10.C$20CA$10.C