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Super Mario Bros. 2 (J) The Lost Levels Reproduction - Anago
http://forums.nesdev.com/viewtopic.php?f=28&t=15591
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Author:  rebelsong [ Mon Feb 27, 2017 8:26 pm ]
Post subject:  Super Mario Bros. 2 (J) The Lost Levels Reproduction - Anago

Good evening ladies and gentlemen and thank you in advance for your consideration and cooperation.

I have a famicom game called Super Mario Bros. 2 (J) The Lost Levels. I purchased it from a Chinese eBay seller named kairoseki_ichigo.
My goal is to either create from scratch or preferably find an anago script that will allow me to dump the game ROM via INL's Retro Programmer Kazzo.
My question is as follows:

Does anyone know of an anago script that would allow me to achieve my goal of dumping the game ROM for this particular game?
Or, by looking at the pictures of the PCB (please see below), does anyone savvy what an analog script for dumping this game would look like?

Again, I appreciate your help. At your convenience, please respond with your thoughts. Thanks!

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Super Mario Bros The Lost Levels Repro 3.jpg
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Super Mario Bros The Lost Levels Repro 2.jpg
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Super Mario Bros The Lost Levels Repro 1.jpg
Super Mario Bros The Lost Levels Repro 1.jpg [ 2.59 MiB | Viewed 954 times ]

Author:  lidnariq [ Mon Feb 27, 2017 8:54 pm ]
Post subject:  Re: Super Mario Bros. 2 (J) The Lost Levels Reproduction - A

Visible parts on that board:
A 512 KiB EEPROM
An 128 KiB EEPROM
A 32 KiB SRAM
An epoxy blob ("chip-on-board").

Odds are good that you'll have to reverse-engineer the board, rather than finding someone here who already knows what's going on. If you're up for that, the first steps are your choice of:
1- Use a multimeter to figure out what pins go to what places (and in this case, scratch a little of the resist off the traces that go into the epoxy blob), or-
2- Dump the game as NROM (mapper 0), and follow in a debugging emulator to figure out how the game writes to the mapper registers

Author:  Ice Man [ Tue Feb 28, 2017 2:00 am ]
Post subject:  Re: Super Mario Bros. 2 (J) The Lost Levels Reproduction - A

Did you try dumping as MMC3?

Author:  rebelsong [ Tue Feb 28, 2017 6:38 pm ]
Post subject:  Re: Super Mario Bros. 2 (J) The Lost Levels Reproduction - A

lidnariq wrote:
Visible parts on that board:
A 512 KiB EEPROM
An 128 KiB EEPROM
A 32 KiB SRAM
An epoxy blob ("chip-on-board").

Odds are good that you'll have to reverse-engineer the board, rather than finding someone here who already knows what's going on. If you're up for that, the first steps are your choice of:
1- Use a multimeter to figure out what pins go to what places (and in this case, scratch a little of the resist off the traces that go into the epoxy blob), or-
2- Dump the game as NROM (mapper 0), and follow in a debugging emulator to figure out how the game writes to the mapper registers


Thank you for your thoughtful contribution, lidnariq.

Author:  rebelsong [ Tue Feb 28, 2017 6:43 pm ]
Post subject:  Re: Super Mario Bros. 2 (J) The Lost Levels Reproduction - A

Ice Man wrote:
Did you try dumping as MMC3?


Ice Man, greetings. Yes, I used the mmc3.ad and mmc3_v2.ad.
These amongst several other analog scripts (including many of those found at GitHub) I tried to no avail.

Thanks for your inquiry.

Author:  nintendo2600 [ Thu Mar 09, 2017 12:53 am ]
Post subject:  Re: Super Mario Bros. 2 (J) The Lost Levels Reproduction - A

You could desolder the PRG and CHR EEPROM chips and read them with most any universal programmer if that is an option for you.

Author:  rebelsong [ Fri Mar 10, 2017 4:40 pm ]
Post subject:  Re: Super Mario Bros. 2 (J) The Lost Levels Reproduction - A

nintendo2600 wrote:
You could desolder the PRG and CHR EEPROM chips and read them with most any universal programmer if that is an option for you.

Thanks, nintendo2600. That is something that I have not yet considered. I will absolutely look into this as a potential solution.

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