[Tuxnes-devel] MMC4 support

[Mike M. <mel...@pc...>]

Hi team,
	I don't know if I could actually release a version of TuxNES
without at least 1 new mapper supported...:)

	With a little guessing, extrapolation, and luck, I figured out
that MMC4 is functionally equivalent to MMC2, except for one tiny
difference (the first 16K of PRG is switchable instead of just the first
8K). So I was able to leverage the MMC2 support and implement MMC4. So, if
you actually happen to have one of those exceptionally rare ROMs that uses
this mapper (Fire Emblem [Gaiden], (Family | Famicom) Wars, Japanese
version of Punch-Out!!, allegedly), it should work fine.

-- 
	-Mike Melanson