Function new_m44 

pub fn new_m44(
    prg_rom: Box<[u8]>,
    chr_rom: Box<[u8]>,
    mirroring: Mirroring,
) -> Result<Mmc3CloneMapper, MapperError>

Mapper 44 (BMC SuperBig 7-in-1 MMC3 multicart).

Errors

MapperError::Invalid on a bad PRG/CHR size.