There are a couple of problems with that approach. First, the game uses a standard television, so you can't change the number of scanlines. Second, the pixel ra

There are a couple of problems with that approach. First, the game uses a standard television, so you can't change the number of scanlines. Second, the pixel rate is about 1MHz, so you'd get about one clock cycle per pixel with a processor of that era. Of course, doing everything in software was a long-term solution.