Nice! I've been using python to augment my 6502 assembly. I haven't programmed the NES, but I've read that acommon way to wait for a particular raster line on i

Nice! I've been using python to augment my 6502 assembly. I haven't programmed the NES, but I've read that acommon way to wait for a particular raster line on it without using fancy mapper hardware is to use sprite-to-background collision interrupts. Collisions aren't triggered until they happen "on screen" with respect to the monitor beam position (same on C64 or Atari 2600), so you can effectively use it to get a line- or even a pixel interrupt.