NES Emulation: After Burner, Nametable Mapping, and Expansion Slots

1 · Luke Triantafyllidis · April 1, 2021, midnight
After Burner was one of my favorite games growing up, and although it was After Burner II on the Mega Drive that I originally fell in love with, the NES version is still good fun and worth playing. It was published by Sunsoft, and as such, it was distributed on a Sunsoft cartridge board, the Sunsoft-4. It was the only US game released on this board. Two PRG-ROM banks of 16KB, first bank is switchable, and the second bank is fixed to the last bank 8KB of optional PRG-RAM Four 2KB CHR-ROM banks T...