Hacking 3DS Emulator Programming

[Yoshimaster96]

Would it be possible to program a 3DS emulator with our current knowledge? Where could I find such information? And yes, I'm programming an emulator.

 

[Snailface]

Would it be possible to program a 3DS emulator with our current knowledge? Where could I find such information? And yes, I'm programming an emulator.

http://www.3dbrew.org/wiki/Main_Page 3ds wiki
https://github.com/plutooo/3dmoo 3ds emu
https://github.com/citra-emu/citra 3ds emu

 

[Yoshimaster96]

What about the ROM encryption format? Is that known?

 

[FAST6191]

Emulator to do what exactly?

With public knowledge to run games in playable form, keep dreaming.
With public knowledge to run games in a form useful for ROM hackers, still waiting on keys really. Same for audio related emulation.
With public knowledge to run homebrew in something approaching hardware accurate, I would say no.
With public knowledge to run homebrew in something resembling hardware like forms, getting warmer.
With public knowledge to run homebrew so as to test out a few routines and the like, maybe even a full homebrew if you are willing to cater to limitations. Sure (it is ARM and something resembling the mobile versions of opengl with a few things bolted on), though I would probably just make it for the DS (it has a pretty similar form factor after all). Frankly though I would probably do the DS thing (or maybe some android stuff as it has better 3d options) and whatever debugging/stepping my dev environment might have.

Where to find. 3dbrew ( http://3dbrew.org/wiki/Main_Page ) and smea's github ( https://github.com/smealum ) are your best bets, you might be pick up some other things from some of the other hacking and homebrew projects. Nothing like GBAtek or cowbite exists as far as I am aware.

 

[Yoshimaster96]

So the encryption format is unknown?

 

[FAST6191]

The format, methods and more are known and have been decoded in private (a lot of the work smea did with the 3d formats and pokemon in general was based upon it). We are still waiting on a public release of the keys to do it though.

 

[Snailface]

So the encryption format is unknown?

Its AES, but there's also a hardware key scrambler too so all decryption must be processed on a hacked 3ds.

http://3dbrew.org/wiki/AES
http://3dbrew.org/wiki/PSPXI:EncryptDecryptAes
http://3dbrew.org/wiki/NCCH

 

[Kaphotics]

So the encryption format is unknown?

No, it is known. The only way you can decrypt the ROM and use the majority of crypto required is by using the 3DS, as the AES keys are write only. There is no way of getting them short of dumping the bootrom, which has not happened.

 

[Sparkette]

No, it is known. The only way you can decrypt the ROM and use the majority of crypto required is by using the 3DS, as the AES keys are write only. There is no way of getting them short of dumping the bootrom, which has not happened.

Forgive me if this is off-topic, but why haven't we dumped the bootrom yet? Wasn't there a fundraiser for decapping?

 

[matt123337]

Forgive me if this is off-topic, but why haven't we dumped the bootrom yet? Wasn't there a fundraiser for decapping?

guy ran off with the money.

 

[Sparkette]

guy ran off with the money.

Wow. What a dick. I did see something about them being unable to contact someone, but I didn't know he was the one with the money.

Any further plans to get it done? It would be a shame to see nothing more come of it because of that.

Also, can't you try to get the money back, somehow? In court maybe, if it's enough to be worth it?

 

[Gericom]

Its AES, but there's also a hardware key scrambler too so all decryption must be processed on a hacked 3ds.

http://3dbrew.org/wiki/AES
http://3dbrew.org/wiki/PSPXI:EncryptDecryptAes
http://3dbrew.org/wiki/NCCH

It would be very nice if there was a homebrew utility, that could encrypt/decrypt 3ds roms from the sd card with the hardware key scrambler. That would be one more step in the direction of emulating (and rom hacking ofcourse!).

 

[zfreeman]

https://t.co/O6shixrHr8

St4rk already made a new emulator, but he has only announced it in a 3DS homebrew thread somewhere on here. It only works on Gateway right now.

http://gbatemp.net/threads/homebrew-development.360646/page-84

Found it.

 

[Abcdfv]

http://gbatemp.net/threads/homebrew-development.360646/page-84

Found it.

He's asking about a PC emulator, like to play 3DS on the PC I believe.

 

[zfreeman]

http://filetrip.net/dl?39rrOrQUwQ

here's the link in the page for the emulator. I don't have a Gateway, but I'm guessing you just drag and drop the .3ds file onto the SD card.

 

[Yoshimaster96]

http://www.3dbrew.org/wiki/Memory_layout
It looks like anyone with a dump of ARM11 memory could extract the boot rom from the first 0x10000 bytes in memory.

 

[matt123337]

http://www.3dbrew.org/wiki/Memory_layout
It looks like anyone with a dump of ARM11 memory could extract the boot rom from the first 0x10000 bytes in memory.

it get's zeroed at the end of the boot process, before the main OS boots.

 

[Yoshimaster96]

So you can't dump it during boot up?

[EDIT]
Also in need of the ARM9 and ARM11 opcodes (in binary format).

[EDIT 2]
Obviously, the entire RAM cannot possibly be emulated, so what part or RAM needs to be emulated?

 

[hippy dave]

Also in need of the ARM9 and ARM11 opcodes (in binary format).

Out of the entire project you're proposing, this part should be the easiest possible to find the answer, ask google.

 

[matt123337]

Obviously, the entire RAM cannot possibly be emulated, so what part or RAM needs to be emulated?

Generally you'd need to emulate the entire ram if you wanted to ya know... make an emulator?