
========================
=  Mapper 082          =
========================


Example Games:
--------------------------
SD Keiji - Blader
Kyuukyoku Harikiri Stadium


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


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

  $7EF0-7EF5:  CHR Regs

  $7EF6:  [.... ..CM]  CHR Mode/Mirroring
    C = CHR Mode select
    M = Mirroring:
       0 = Horz
       1 = Vert

  $7EFA:  [PPPP PP..]  PRG Reg 0 (8k @ $8000)
  $7EFB:  [PPPP PP..]  PRG Reg 1 (8k @ $A000)
  $7EFC:  [PPPP PP..]  PRG Reg 2 (8k @ $C000)


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

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


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

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

Note:  remember that the low 2 bits are not used (right-shift written values by 2)