Hacking [Discussion] HaxxStation: Download Play for the Wii U?

[datahoarder]

@CuriousTommy had mentioned over in another thread that nn_dlp.rpl exists for this purpose.
https://gbatemp.net/threads/is-ther...-use-of-the-3ds-download-play-feature.472441/
Would this even be remotely possible to run natively or on Virtual Console games on the Wii U?

or could Monster Hunter Ultimate 3DS Packet Relay Tools
be able to be reconfigured to do the same as Download Play?



The DS exploit thread:
https://gbatemp.net/threads/haxxstation-ds-download-station-exploit.473648/

 

[Deleted User]

Relay Tools works like a server.
Server is hosted on Wii U and players can locally play it on 3DS using 3DS version of the game.
Download Play is a other thing, that's more likely Spotpass and automatic software downloads.
But, I know nothing so I'll leave it to professional such as @QuarkTheAwesome and many other devs.

 

[QuarkTheAwesome]

I'm not really sure how that DS exploit works (do you host a .nds? Is there a server? I have no idea) but I can tell you a bit about nn_dlp. There's not much on it since nobody's turned up a game that uses the library. It's also not immediately obvious how to use it based on things like function names (as a counter-example, one can easily deduce what OSForceFullRelaunch does. nn_dlp's function names aren't so descriptive). This means, short of looking it up in the SDK, it's hard to tell how to use the library since it's not self a documenting and we don't have a reference implementation. To top it all off, iirc it's C++. Nintendo's C++ libraries have never been used in homebrew to my knowledge and it's not immediately obvious how one would make it work. So yeah, it's possible from a technical standpoint, but practically it'd be a PITA.

As for MH3, it doesn't look to be using Download Play; since the software has to be already on the 3DS.
We know that the hardware is capable of doing Download Play stuff for both the DS and 3DS, it's just a case of how...

 

[Whovian NineThreeSixNine]

m not really sure how that DS exploit works (do you host a .nds? Is there a server? I have no idea)

You modify a copyrighted DS Download Station 01 rom to inject Homebrew, as far as I can tell. Put that on a flashcart, boom.

Now that is IF I'm reading it correctly.

 

[datahoarder]

@QuarkTheAwesome
Thanks for the input! Looks like @FIX94 was able to implement this to a degree utilizing the vWii and DS roms!
https://gbatemp.net/threads/v-wii-ds-rom-sender.474213/