
========================
=  Mapper 207          =
========================


Example Game:
--------------------------
Fudou Myouou Den


Notes:
---------------------------
Regs appear at $7EFx, I'm unsure whether or not PRG-RAM can exist at $6000-7FFF

This mapper is just like mapper 080, with mirroring handled differently. For details,
refer to mapper 080.


Registers:
---------------------------

  $7EF0:  [MCCC CCCC]
     M = Mirroring 0
     C = CHR Reg 0

  $7EF1:  [MCCC CCCC]
     M = Mirroring 1
     C = CHR Reg 1

  $7EF2-7EF5:  CHR Regs 2-5


  $7EFA,7EFB:  PRG Reg 0 (8k @ $8000)
  $7EFC,7EFD:  PRG Reg 1 (8k @ $A000)
  $7EFE,7EFF:  PRG Reg 2 (8k @ $C000)


CHR Setup:
---------------------------

       $0000   $0400   $0800   $0C00   $1000   $1400   $1800   $1C00 
     +---------------+---------------+-------+-------+-------+-------+
     |    <$7EF0>    |    <$7EF1>    | $7EF2 | $7EF3 | $7EF4 | $7EF5 |
     +---------------+---------------+-------+-------+-------+-------+

PRG Setup:
---------------------------

      $8000   $A000   $C000   $E000  
    +-------+-------+-------+-------+
    | $7EFA | $7EFC | $7EFE | { -1} |
    +-------+-------+-------+-------+

Mirroring:
---------------------------

  [ $7EF0 ][ $7EF0 ]
  [ $7EF1 ][ $7EF1 ]

Mirroring bit of appropriate reg selects NTA or NTB
