Just_Boxing_(Unl)[Shenzhen_Nanjing] pass 1

game
  crc: b1940c20
  title: Just_Boxing_(Unl)[Shenzhen_Nanjing]
  board: 256
    memory
      type: ROM
      size: 0x200000
      content: Program
    memory
      type: RAM
      size: 0x2000
      content: Character
      volatile

E: Mapper: 256

ERROR:  Unsupported mapper


Just_Boxing_(Unl)[Shenzhen_Nanjing] pass 2

game
  crc: b1940c20
  title: Just_Boxing_(Unl)[Shenzhen_Nanjing]
  board: 256
    memory
      type: ROM
      size: 0x200000
      content: Program
    memory
      type: RAM
      size: 0x2000
      content: Character
      volatile

E: Mapper: 256

ERROR:  Unsupported mapper


Just_Boxing_(Unl)[Shenzhen_Nanjing] pass 3

game
  crc: b1940c20
  title: Just_Boxing_(Unl)[Shenzhen_Nanjing]
  board: 256
    memory
      type: ROM
      size: 0x200000
      content: Program
    memory
      type: RAM
      size: 0x2000
      content: Character
      volatile

E: Mapper: 256

ERROR:  Unsupported mapper