Great Find!

I was snooping around the net looking for info before re-hacking my PPU again when I ran across the following site:

http://wiki.nesdev.com/w/index.php/Emulator_Tests

On this page was a rom called nestest, which seems to be a lot better at edge case testing my emulator than nestress was. So because I don't have a lot of time tonight, I will work on passing this rom as much as possible. Here's the starting score (OK means it passed, obviously nothing is OK yet):

I will post back once I make some more progress.