Cart DB #34: 4 in 1 (BIC)

Notes for chip search:

Use "+" as delimeter for all fields (except "cart name", where space is used); if many values are entered, all of them must appear in the cartridge then; case is not sensitive
"Mapper" is the actual mapper used by this cartridge hardware (might not match the one at wiki.nesdev.com, as at the moment I was analyzing this cartridge, there was no mapper assigned to it, so I had to assign my own number for testing)
"Original mapper" is the mapper used by licensed version of this game (for multicarts, it refers to mapper of the inside games, so 0+2 means this cartridge can run NROM+UNROM games)
Order in which you put values doesn't matter (you can write 7400+74138+7400 or 7400+7400+74138 to search for a cartridge that contains at least two 7400 chips and one 74138
Some chips (like PAL16*8) appear in cartridges as 16V8 or 16L8, so be sure to check both posibilities
Same goes for memories - type 27F080 to search for 32 pin memories, 27512 for 28 pin with two chip enables or MASKROM_1M_DIP28 for 28 pin with one chip enable
Same goes for mappers - some examples: AX5904(MMC1), AX5202P(MMC3), PT8154BM (9112MMC3), AX5208C(VRC4), 23C3662(VRC2)
Good news is that you can use wildcards, so 74139+*MMC3* will search for any cartrige that has at least one 74139 and MMC3 chip in any version

Name	Value
IC1	74174
IC2	7432
IC3	7400
IC4	PRG_ROM(27512)
IC5	CHR_ROM(27512)
CART1	FAMICOM_CART

Name

Value

IC1

IC2

IC3

IC4

IC5

CART1

FAMICOM_CART

4-in-1 multicart [[File:4-in-1_menu.jpg|thumb|4-in-1 menu]] [[File:4-in-1_top.jpg|thumb|4-in-1 top]] [[File:4-in-1_bottom.jpg|thumb|4-in-1 bottom]] [[File:4-in-1_schematic.png|thumb|4-in-1 schematic]] This cartridge contains 4 CNROM games: *Puzzle *F-15 City War *Volley Ball *PokeBlock ==CPU banks== $8000-$ffff: 32 kB ROM bank (swapppable) ==PPU banks== $0000-$1fff: 8 kB ROM bank (swappable) ==Mirroring== H/V (selected by software) ==Subject to bus conflicts== Yes ==Registers== $8000-$ffff: PRG/CHR bank selection register 7 0 -------- xxPPCCCC |||||| ||++++- select 8kB CHR-ROM bank at $0000-$1fff ++----- select 32 kB PRG-ROM bank at $8000-$ffff +------ select mirroring (0=H, 1=V) ==Quirks== * Multicart register overlaps CNROM register and multicart register is not protected from writes after game is selected, so all games CHR-bank switching rougines had to be patched. * The register is not initialized on startup so reset vector of all games had to be patched * DIP28 1 MB mask ROMs are used both for PRG and CHR (pin 22, which is normally used as !OE in DIP28 EEPROMS is utilized as A16)

Cart name		Notes for chip search: Use "+" as delimeter for all fields (except "cart name", where space is used); if many values are entered, all of them must appear in the cartridge then; case is not sensitive "Mapper" is the actual mapper used by this cartridge hardware (might not match the one at wiki.nesdev.com, as at the moment I was analyzing this cartridge, there was no mapper assigned to it, so I had to assign my own number for testing) "Original mapper" is the mapper used by licensed version of this game (for multicarts, it refers to mapper of the inside games, so 0+2 means this cartridge can run NROM+UNROM games) Order in which you put values doesn't matter (you can write 7400+74138+7400 or 7400+7400+74138 to search for a cartridge that contains at least two 7400 chips and one 74138 Some chips (like PAL168) appear in cartridges as 16V8 or 16L8, so be sure to check both posibilities Same goes for memories - type 27F080 to search for 32 pin memories, 27512 for 28 pin with two chip enables or MASKROM_1M_DIP28 for 28 pin with one chip enable Same goes for mappers - some examples: AX5904(MMC1), AX5202P(MMC3), PT8154BM (9112MMC3), AX5208C(VRC4), 23C3662(VRC2) Good news is that you can use wildcards, so 74139+MMC3* will search for any cartrige that has at least one 74139 and MMC3 chip in any version
Mapper#
Original mapper#
PCB marks
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