Cart DB #339: Getsufuu Maden

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
U1	7432
U10	27512
U11	27512
U2	7404
U3	7432
U4	7432
U5	74163(74161)
U6	7483
U7	74670
U8	74670
U9	74151
C1	-
C10	-
C11	-
C2	-
C3	-
C4	-
C5	-
C6	-
C7	-
C8	-
C9	-
CART1	FAMICOM_CART

Name

Value

U10

U11

C10

C11

CART1

FAMICOM_CART

Getsufuu Maden / discrete clone of VRC2 (a kind of) Well, not really whole VRC2, just the subset used by (modified) Getsufuu Maden. [code] $8000-$bfff: [M...PPP.] | |||| | ++++- 16k PRG bank at $8000 ($c000 gets -1 bank) +-------- mirroring (0=V, 1=H) $b000 [.CCCCCC.] - 2k CHR bank at $0000 $c000 [.CCCCCC.] - 2k CHR bank at $0800 $d000 [.CCCCCC.] - 2k CHR bank at $1000 $e000 [.CCCCCC.] - 2k CHR bank at $1800 [/code] First time I see cartridge using 7483 chip (adder). And I always thought that all 74xx chips have GND and VCC in the opposite corners, looks like there are exceptions). Because VRC2 has its CHR-register banks laid in non-aligned addresses, it would require a lot of logic to map them to corresponding PPU range. So.. they added 1 to the CPU address bits and voila [code] CPU registers PPU banks fedcba9876543210 dcba9876543210 1011************ = $b000 -> 000*********** = $0000 1100************ = $c000 -> 001*********** = $0800 1101************ = $d000 -> 010*********** = $1000 1110************ = $e000 -> 011*********** = $1800 || || |+-------------------------------|+ +--------------------------------+ [/code] Notes: * VRC2 is able to 8kB PRG banking, but Getsufu Maden seems to always set two consecutive PRG banks, which results in 16 kB banks * VRC2 is able to 1kB CHR banking, but Getsufu Maden seems to always set two consecutive PRG banks, which results in 2 kB banks * I don't have access to PCB but I don't see CPU-A13 line going to U3.9 so writes to $b000-$bfff CHR bank also triggers write to PRG bank (but it looks like the routine is always executed from fixed bank and then PRG is set, so maybe it does not matter) This PCB seems to be similar in design (probably the same manufacturer) to [url=https://forums.nesdev.com/viewtopic.php?f=9&t=16819]FC02[/url] [url=https://obrazki.elektroda.pl/3746598500_1594482478.png][img]https://obrazki.elektroda.pl/3746598500_1594482478_thumb.jpg[/img][/url] [url=https://obrazki.elektroda.pl/6614574600_1594482482_org.jpg][img]https://obrazki.elektroda.pl/6614574600_1594482482_thumb.jpg[/img][/url] [url=https://obrazki.elektroda.pl/9931547800_1594482484_org.jpg][img]https://obrazki.elektroda.pl/9931547800_1594482484_thumb.jpg[/img][/url] [url=https://obrazki.elektroda.pl/4491347400_1594482486_org.jpg][img]https://obrazki.elektroda.pl/4491347400_1594482486_thumb.jpg[/img][/url] [url=https://obrazki.elektroda.pl/5020704000_1594482487.png][img]https://obrazki.elektroda.pl/5020704000_1594482487_thumb.jpg[/img][/url]

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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