fa74a364de
- this implementation is based on a more accurate colour emphasis from fceux. - The raw palette + nes decoder shader was kinda incomplete since the implementation was based on a per-frame basis which means that the emphasis bits were read once and applied to the whole frame. This means that some games that uses a per pixel or per scanline emphasis would not appear correct. The more accurate implementation reads emphasis bits from bits 5-7 of PPU[1] and saves this info in a separate frame. - The same implementation is also used to fix emphasis for the ntsc filter.
FCE Ultra mappers modified
FCEU "mappers modified" is an unofficial build of FCEU Ultra by CaH4e3, which supports a lot of new mappers including some obscure mappers such as one for unlicensed NES ROM's.