ROM Hack I'm trying to reverse-engineer "Nintendogs: Shiba and Friends".

[Deleted User]

I'm trying to reverse-engineer "Nintendogs: Shiba and Friends".
Currently, I'm stuck at the coproccessor wrapper code.(https://gist.github.com/sc39IsADev/0515f0ef45c7cf695fdd87dda5f944b1)
Any ideas?

 

[Kwyjor]

Currently, I'm stuck at the coproccessor wrapper code.

What exactly do you mean? What have you done so far?

 

[Deleted User]

What exactly do you mean? What have you done so far?

Currently I'm trying to get the game code from the ROM.

 

[Kwyjor]

Currently I'm trying to get the game code from the ROM.

I understand that. So:

1-You got the ROM
2-????
3-You are stuck at the coproccessor wrapper code

What happened in Step 2?

 

[Deleted User]

I understand that. So:

1-You got the ROM
2-????
3-You are stuck at the coproccessor wrapper code

What happened in Step 2?

I loaded it in ghidra.

 

[Kwyjor]

Okay, so... Have you read something that has led you to believe that Ghidra is a useful tool for reverse-engineering NDS games? (I assume you've already searched to see if someone has successfully hacked Nintendogs before.)

Also, do you have a specific goal in mind?

These are useful things to try to establish.

 

[Deleted User]

Okay, so... Have you read something that has led you to believe that Ghidra is a useful tool for reverse-engineering NDS games? (I assume you've already searched to see if someone has successfully hacked Nintendogs before.)

Also, do you have a specific goal in mind?

These are useful things to try to establish.

Have you read something that has led you to believe that Ghidra is a useful tool for reverse-engineering NDS games?: Yes, I heard that from MVG.
Also, do you have a specific goal in mind?: I want to decompile the game and release the code, like what happened with the sm64 decompilation.

 

[Kwyjor]

Yes, I heard that from MVG.

ModernVintageGamer says a lot of things :-P . Does he have a video which specifically illustrates using Ghidra to reverse-engineer a DS game? Because there are a lot of other DS hacking tools available at this point.

I want to decompile the game and release the code, like what happened with the sm64 decompilation.

You realize that project took years of extensive collaboration to complete, right? SM64 is a particularly odd case in that people knew it was originally written in C and knew specifically what was used to compile it. I'm not sure anyone has dug into what was used to write DS games.

I'll shut up now and see if someone with better ideas would like to chime in.