Hello, I have an Atari 2600 and modified it for S-Video Out.
While researching, I found the RGB mod as a circuit board by Tim Worthington. As far as I understand, his kit accesses the information from the TIA, does a kind of rastering (simply put) and outputs an RGB signal.
Because of how an Atari 2600 works, an emulator has to do (almost) the same thing. So there should be a part in an emulator that translates the information from a virtual TIA into video information.
I wondered why you can't connect the outputs of an original TIA from an Atari 2600 to the input pins of the RaspberryPi and use the emulator video part to generate a clean HDMI signal.
I'm sure I'm completely off the mark here and I certainly don't have the skills to even begin to program such a thing, but what technical hurdle actually speaks against it?
Greetings from Germany, Peter.