You're kinda getting into the esoterica of how scrolling works on the NES. nesdevwiki:PPU scrolling.mitch3a wrote:Is this just expected behavior?
But ... no, simply disabling then reenabling rendering wouldn't obviously cause a jump of a single scanline. Re-enabling rendering in the middle of a field should cause it to randomly start rendering with a random weird scroll, but I'd be surprised if it was consistently one scanline.