dumping my famicom multicarts

Discuss hardware-related topics, such as development cartridges, CopyNES, PowerPak, EPROMs, or whatever.

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mmx999
Posts: 10
Joined: Sat Dec 24, 2016 3:20 am

dumping my famicom multicarts

Post by mmx999 »

hi every one...
this is my first day in nesdev
i have problem dumping my famicom multicarts
i have this one for example (captain majed+turtles fighter)
i dump it using kazzo with mmc3
and it gives me only the menu and one game running (galaxian)
any help with dumping please...
cause im zero with dumping
i upload it here

edit: removed ROM attachment - admin
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koitsu
Posts: 4201
Joined: Sun Sep 19, 2004 9:28 pm
Location: A world gone mad

Re: dumping my famicom multicarts

Post by koitsu »

Please do not upload commercial ROM images here.
mmx999
Posts: 10
Joined: Sat Dec 24, 2016 3:20 am

Re: dumping my famicom multicarts

Post by mmx999 »

what is commercial ROM images ??? :oops:
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tokumaru
Posts: 12425
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Location: Rio de Janeiro - Brazil

Re: dumping my famicom multicarts

Post by tokumaru »

Any game that wasn't released for free by its creators, meaning that any copies posted online are illegal and could cause legal trouble to this site.
hexa83
Posts: 2
Joined: Sun Feb 11, 2024 3:06 am

Re: dumping my famicom multicarts

Post by hexa83 »

Hi every one,
i have the same problem dumping the ROM of my famicom multicarts cardridge
and i think it's the same cartdridge as mmx999 ( Captain majed II + ninja Turtles III + ....)
i trying dumping th ROM using "kazzo" with "anago "software
and it gives me only the menu and i can not play any games, i upload the photo of the cardridge and the sceen of the game menu
Hope that some one help me and give me the correct script to dump the ROm of this multicarts cardridge
Thank you everybody
Attachments
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421221167_199362286571977_5268746025610377151_n.jpg
421172904_1098470941195204_5830696989847708099_n.jpg
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krzysiobal
Posts: 1024
Joined: Sun Jun 12, 2011 12:06 pm
Location: Poland
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Re: dumping my famicom multicarts

Post by krzysiobal »

It is one of those boards with MMC3's WRAM/CE line controlling external register.
Bits from those register controls PRG+CHR upper lines.
And MMC3-CPU-A14 can be switched between CPU-A14 and GND so that MMC3's PRG lines can be used to provide switchable 16k banks at $8000 and $c000 (NROM support)

Normally those boards consisted of 74161+74157 for example
http://krzysiobal.com/carts/?action=view&id=263
http://krzysiobao.com/carts/?action=view&id=125

Here, all that "external" functionality is integrated inside the leftmost blob:

Code: Select all

WRITES AT:      fedc ba98 7654 3210
$6000-$7fff ~ [ 111. .... ...? ????]

What bits with `?` can control
* PRG A18
* PRG A19
* CHR A18 
* what is supplied to MMC3's CPU A14 (CPU A14 or GND)
* what is supplied to PRG's A0 (either CPUA0 or GND?
* what is supplied to PRG's A14 (either MMC3's PRG A14 or CPU A14)
* maybe also one of the bits can control if any further writes to this reg can be disabled
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Image My website: http://krzysiobal.com | Image My NES/FC flashcart: http://krzysiocart.com
hexa83
Posts: 2
Joined: Sun Feb 11, 2024 3:06 am

Re: dumping my famicom multicarts

Post by hexa83 »

Thank you krzysiobal for your help,

But i'm a newbie in the dumping, can you please send me the required anago script to dump the ROM of my cartridge Using Kazzo dumper ,

Thank you
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krzysiobal
Posts: 1024
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Location: Poland
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Re: dumping my famicom multicarts

Post by krzysiobal »

Without dump of menu, it is impossible to figure out how the script should look like.
Image My website: http://krzysiobal.com | Image My NES/FC flashcart: http://krzysiocart.com
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