abstract Rom

type InesHeader
    PrgRomSize::UInt8
    ChrRomSize::UInt8
    IgnoreMirror::Bool
    Trainer::Bool
    HasBatteryRam::Bool
    Mirror::Bool
    IsNES2Format::Bool
    Arcade2::Bool
    Arcade1::Bool
    PrgRamSize::UInt8
    TVSystem::Bool
    BusConflict::Bool
    PrgRam::Bool
    TVSystem2::UInt8
    Mapper::UInt8
end
type Ines <: Rom
    Header::InesHeader
    Rom::Array{UInt8,1}
    Ines(file::String) = begin
        rom = Mmap.mmap(file)
        return((InesHeader(
                    rom[5]*16,
                    rom[6]*8,
                    Bool(rom[7] & 0b00001000),
                    Bool(rom[7] & 0b00000100),
                    Bool(rom[7] & 0b00000010),
                    Bool(rom[7] & 0b00000001),
                    if ((rom[8] & 0b00001100) >> 2) == 2
                        true
                    else
                        false
                    end,
                    Bool(rom[8] * 0b00000010),
                    Bool(rom[8] * 0b00000001),
                    rom[9] * 8,
                    Bool(rom[10] & 0x1),
                    Bool(rom[11] & 0b00100000),
                    Bool(rom[11] & 0b00010000),
                    rom[11] & 0x3,
                    (rom[7] & 0b11110000) | (rom[8] & 0b00001111)
                    ), rom[16:end]))
    end
end
test_rom = Ines("/home/john/Code/ksy/specimens/ines/2600\ Bros\ (SMB1\ Hack).nes")