I found many tutorials and samples out there about how to handle paddles and I think I have done everything right - not sure because I can't even get so far as to test my code. For some reason, when I store a value of #$82 into VBLANK as all the samples say to do, unless I misunderstood something, I get a black screen. Using #$80 lets me see the screen but then paddles do not work. I simply don't know enough to understand what's happening. I am testing my code with Stella 4.7.3. I assume Stella is set up to see the mouse as a paddle. I am attaching a screen shot of my Stella settings and my sample1.asm
BTW I built the sample code at http://spiceware.org/atari_paddles.html and tested in Stella. While I do see the screen, paddle doesn't work. I verified paddles are working for me in Stella because I am able to play Astroblast.
sample1.asm 3.31KB 44 downloads