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INES Mapper 190

iNES Mapper 190 is assigned to the unlicensed game Magic Kid Googoo released by Zemina.

Banks

CPU $6000-$7FFF: 8 KiB RAM
CPU $8000-$BFFF: 16 KiB switchable PRG ROM bank
CPU $C000-$FFFF: 16 KiB PRG ROM bank, fixed to the first bank
PPU $0000-$07FF: 2 KiB switchable CHR ROM bank
PPU $0800-$0FFF: 2 KiB switchable CHR ROM bank
PPU $1000-$17FF: 2 KiB switchable CHR ROM bank
PPU $1800-$1FFF: 2 KiB switchable CHR ROM bank

Registers

CHR-ROM Bank Select ($A000-$BFFF)

A~[101. .... .... ..bb] D~[CCCC CCCC]
                    ||     |||| ||||
                    ||     ++++-++++--- Select 2 KiB CHR bank ...
                    ++----------------- for PPU address starting at bb*$800

PRG-ROM Bank Select ($8000-$9FFF, $C000-$DFFF)

A~[1P0. .... .... ....] D~[.... .PPP]
    |                            |||
    +----------------------------+++--- Select 16 KiB PRG bank at $8000-$BFFF

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