treed

Not strictly Mac, but I do also have a nix definition for cc65 that works on Mac if anyone wants that.

Very into this topic. I came across this NES Screen Tool looking thing recently, but it's still pretty clearly early days. I don't see a way to mess with palette colors for instance. But interesting to watch: https://100r.co/site/nasu.html

Yeah, I originally thought about that, but BIT has no immediate mode. It's only got ZP and Absolute.

Seems entirely reasonable to me. I'm working my way through Nerdy Nights and took a similar approach for flags. Although I wonder why I haven't seen other people using BIT for this: LDA #8 BIT buttons1 BEQ MovePaddleDown As far as I can tell, it's identical in cycles and bytes, so is it just a matter of taste or is there a drawback there? I guess the only benefit I see with using BIT over AND is that A is left alone, in case you wanted to use the same bitmask right away. With the game states though, I probably wouldn't represent it at a bitfield, since the states are actually mutually exclusive. You won't ever have a state which is GameOver & Credits & Paused, for instance. The approach I'm planning to use in my NN Pong is that "State" is just an address and then I do an Indirect JMP once per frame to do the updates. Sadly there's no indirect JSR. You also couldn't do a jumptable of states, since there's not even indexed JMP. Could be some drawback to this plan, but I guess that's what this whole phase of learning is for.