LED
leds[LED(0)] = a;
leds[LED(1)] = b;
leds[LED(2)] = c;
leds[LED(3)] = d;
leds[LED(4)] = ' ';
leds[LED(5)] = ' ';
leds[LED(6)] = ' ';
leds[LED(7)] = ' ';
bus_space_write_1(bst, bsh, LED,