You show me a hook spot in your DSP code and I'll add it. It will be compatible with a CX-22, Atari Mouse, Amiga Mouse
and the Atari VCS driving controllers. I need probably about 256 bytes total(probably a less).
It's been a few years but as I recall it, the paddle and balls are not controlled by the DSP - the 6800 tracks them. The other processors were used to draw the objects on the screen, play sound effects and play music. The game logic is simply a port of an ST game I wrote called WalZ and the 6800 we more than enough for the task.
Mario