INES Mapper 058

iNES Mapper 058 is used for a number of simple NROM-/CNROM-based multicarts:

• 21-in-1 (AS-5321)
• 50-in-1 (WQ1806 B)
• 55-in-1 (WQ2006 B)
• 68-in-1 (HKX5268)
• 75-in-1 (WQ1905 E)
• 86-in-1 (AP-5486)
• 92-in-1 (WQ1605 E)
• 97-in-1 (WQ1708 B)

Address Latch ($8000-$FFFF, write)

Mask: $8000

A~FEDC BA98 7654 3210
  -------------------
  1... .... MSCC CPPP
            |||| |+++- PRG A16..A14
            ||++-+---- CHR A15..A13
            |+-------- PRG Mode
            |           0: NROM-256 (PRG A14=CPU A14)
            |           1: NROM-128
            +--------- Nametable mirroring
                        0: Vertical
                        1: Horizontal

Notes

• INES Mapper 213 is a duplicate.