Development of a N64 Save Dump Program Question

[Poke J]

I'm not sure if my idea for a N64 save dumping program would even work based solely on the hardware, but I'd like to get other peoples opinion on this topic before I begin trying to make it.  My idea is to write a script that would be placed on a Game Boy flash cart which would make uses of the Game Boy Game Pack accessory and if the game uses the game pack accessory when the game tries to read the game pack the script would activate and copy the save file from the N64 game to the Game Boy flash cart.

[Deoxyz]

I'd personally be interested in this.

Last I checked the Retrode still didn't support N64 save backup, and iirc all other dumpers are rare and expensive ancient hardware like Dr V64/Dr V64 Jr.

[Brittany]

I think it would be a really nifty idea if you could actually get it to work. I would definitely use it, at least.

All the current methods are.... rather time consuming or expensive.I recently went through the difficulty of getting the DVs of my pokemon off stadium 2. (Thanks to the user, SadisticMystic in the discord, actually!), and spent a decent amount of time trying to figure out a way to rip the save data since I knew I'd never be able to understand the technical information in this thread since hex goes wayyyyy above my head. ((I was pretty much crying at the idea of trying to get something so old that could run that hardware to dump the memory/save, so I'm glad they were able to help me))

For the sake of anyone who is curious about the methods I have seen:

Method 1) $220: 64drive ($200) and UltraSave ($20)
The only really "modern" one I was able to find. You need the 64drive to use it.  Unless you are interested in a flash cart for the N64, it's really hard to to consider purchasing for the price when most other save managers for other consoles are way cheaper. 

Method 2) Gameshark

I believe it might be possible with a gameshark, but it's... complicated. You need the N64 expansion pack, and You can with a Gameshark 3.2+,(pref. 3.2 since 3.3 had some faulty boards, see but you need antiquated hardware (a parallel port on your motherboard as USB to parallel doesn't work for most people, for example)

You can see some details here: 
http://www.paulscode.com/forum/index.php?topic=810.0
https://www.kyleniewiada.org/blog/2016/05/ocarina-of-time-n64-save-transfer-guide/
https://www.kyleniewiada.org/blog/2015/04/transferring-n64-saves/
https://gamehacking.org/vb/forum/video-game-hacking-and-development/retro-hacking/6217-n64-gs-3-3-help-with-pc-linking-usb-to-parallel-printer-cable
 

Method 3) Make it yourself - GL&HF

https://github.com/sanni/cartreader/wiki


 

[puchamon]

Retrode have plugin for N64, saves in cartridge, for de Memory Pak exist one program for Everdrive 64, backup all save from Memory Pak