INES Mapper 242

 Here are Disch's original notes:  
 ========================
 =  Mapper 242          =
 ========================
 
 
 Example Game:
 --------------------------
 Wai Xing Zhan Shi
 
 
 
 Registers:
 ---------------------------
 
   $8000-FFFF:  A~[.... .... .PPP P.M.]
     P = PRG Reg (32k @ $8000)
     M = Mirroring (0=Vert, 1=Horz)
 
 
 Powerup/Reset:
 ---------------------------
 
 Register set to 0 on powerup/reset.