andrew-hoffman/halfnes — pull request #4 by andrew-hoffman (2014-12-25 21:59:31+00:00)
Title: Vrc scanline counter

VRC scanline counter now properly decrements every CPU cycle instead of only at fixed positions in the scanline. It's more accurate like this, but that doesn't necessarily translate to accuracy improvements in all games. Some go from twitchiness to glitchy lines. CPU timing is still not quite cycle accurate and won't be without a major rewrite. (Currently all memory accesses still happen on the 1st cycle.)