OK, so this works in the only way possible, by recreating some functions of the VDP. I looked at this years ago and the problem is that the VDP creates the analog signal directly on the chip, so there is no simple way to tap a digital signal.
The problem with recreating the VDP is that you have to be careful that you are doing it correctly -- you're emulating the functions of the original chip, so are you doing it 100% right? Are there any games that glitch with this mod?
The problem with recreating the VDP is that you have to be careful that you are doing it correctly -- you're emulating the functions of the original chip, so are you doing it 100% right? Are there any games that glitch with this mod?