ref: 83daaf4ee43ec79d87dab45c3d14e55b2adb8425
dir: /sys/games/lib/life/cmu/
xxx..x.x.x..xxx x.x..x.x.x....x x.x..xxxxx..xxx ............... ............... xxx.........xxx ..x.........x.. xxx.........xxx ..x.........x.. xxx.........xxx ............... ............... xxx..xxxxx..x.x x....x.x.x..x.x xxx..x.x.x..xxx