09-03-2015, 03:54 AM
Mine works by freezing the image using a double piston 'and' gate layout. I think it captures 8 ticks of data. It uses a large cascading... thing that times the captures by the and gates to prevent the waveform from drifting across the screen, and it has another cascading thing (they're like trees of repeaters set for certain delays) that when you push it, it delays that clock pulse by one tic, so the waveform moves one bit to the right. If it's a piston clock generating the test pulse, the last bit in the high stream flips every time the screen updates (thus: half-tic accuracy)