Hacking JGecko U Setup Guide

[HackingNewbie]

Fixed

It happened because the address was treated as signed int hence 0x80000000 is suddenly negative and invalid. Kinda stupid but I never made or used it with Wii memory dumps anyway. Still, this was necessary to fix.

Haha thanks dude

 

[targren]

Hey @BullyWiiPlaza, JGecko U and the TCP Gecko installer are working a treat, so no problem there.

I do have a quick dev question for you, though, about the communication protocol between the Gecko client on the PC and the code handler on the WiiU: is it documented anywhere? I went through the thread and found cosmocortney's docs for the codetypes, but not much on the protocol for transmitting them. I figured I'd ask you first before I had to set about doing it the hard way (reversing it from Wireshark and probably PandaOnCrack's BOTW trainer source).

Either way, thanks for the project. It's good stuff.

 

[HackingNewbie]

@BullyWiiPlaza btw, how did you learn to deveop wii/wii u homebrew? Is there some online tutorial or something?

 

[skoolzout1]

Fixed

It happened because the address was treated as signed int hence 0x80000000 is suddenly negative and invalid. Kinda stupid but I never made or used it with Wii memory dumps anyway. Still, this was necessary to fix.

I wish I had mentioned this while you were fixing the pointer searcher but the same issue occurs in Jgecko. You cannot use the Watch List nor the Follow Pointer button for addresses above 0x80000000 normally that's not a problem but I guess some games like LOZ OOT I know use the E8000000 to EA000000 range.

Viewing addresses is fine and everything, it doesn't hinder/restrict anything but it's something worth mentioning I guess.

Also I don't know if you got around to fixing the integer register load/store code wizard format but there's another thing.


...I feel like a mother handing out chores to do.

 

[BullyWiiPlaza]

...I feel like a mother handing out chores to do.

None of them are done yet because I'm busy but you're saying it takes too many efforts to use the code wizard? Any ideas on how to make it more efficient then?

 

[C0mm4nd_]

@BullyWiiPlaza btw, how did you learn to deveop wii/wii u homebrew? Is there some online tutorial or something?

learn C (and some C++ if you want) then take a look here

 

[HackingNewbie]

learn C (and some C++ if you want) then take a look here

Cheers mate

 

[BullyWiiPlaza]

@BullyWiiPlaza btw, how did you learn to deveop wii/wii u homebrew? Is there some online tutorial or something?

I learned C programming before so it wasn't too difficult to pick up on programming Wii U homebrew. C++ can be used as well. You only need to install devkitPro and you can start writing some code with the Nintendo API and such. It's best to study what others did to better understand everything.

 

[HackingNewbie]

I learned C programming before so it wasn't too difficult to pick up on programming Wii U homebrew. C++ can be used as well. You only need to install devkitPro and you can start writing some code with the Nintendo API and such. It's best to study what others did to better understand everything.

thanks mate

 

[skoolzout1]

None of them are done yet because I'm busy but you're saying it takes too many efforts to use the code wizard? Any ideas on how to make it more efficient then?

No no no no. The code wizard is amazing and very efficient already. The problem I'm talking about is just within the Register Operation section of the code wizard. The data size box needs to have "64 bit" and "96 bit" removed since you can't load/store a 64 or 96 bit integer. And it needs to be programmed so when you select 8,16,32 bit data sizes, the resulting code that is copied to the clipboard changes accordingly. Right now it doesn't matter what data size you select, it will always copy the code of 10000000 as a load, and 11000000 as a store operation. Which are always 8bit load/store operations.

But honestly take your time. It's certainly not a priority to fix. You deserve a break anyways :3

 

[mike087]

Where i can get the codehandler file?

 

[BullyWiiPlaza]

Where i can get the codehandler file?

You don't

 

[HackingNewbie]

I learned C programming before so it wasn't too difficult to pick up on programming Wii U homebrew. C++ can be used as well. You only need to install devkitPro and you can start writing some code with the Nintendo API and such. It's best to study what others did to better
understand everything.

Is there a documentation of the nintendo api?

 

[C0mm4nd_]

Is there a documentation of the nintendo api?

http://wiiubrew.org/wiki/Cafe_OS#Libraries

 

[HackingNewbie]

http://wiiubrew.org/wiki/Cafe_OS#Libraries

Thanks

 

[BullyWiiPlaza]

Is there a documentation of the nintendo api?

Get yourself a copy of the cafe SDK. It contains the "official" documentation for the Nintendo API.

 

[HackingNewbie]

Get yourself a copy of the cafe SDK. It contains the "official" documentation for the Nintendo API.

Thx m9

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Is it straightforward to find (just google it) or should I just have a link?

 

[BullyWiiPlaza]

Is it straightforward to find (just google it) or should I just have a link?

Straightforward but linking is not allowed due to copyright.

 

[HackingNewbie]

Straightforward but linking is not allowed due to copyright.

K, cafe sdk 1.7?

 

[BullyWiiPlaza]

K, cafe sdk 1.7?

Yes