Homebrew 3DNES - NES Emulator

[DillPo313]

Are you planing to improve 3DGB too? Or, are you already doing that?

 

[st4rk]

Are you planing to improve 3DGB too? Or, are you already doing that?

I am working on 3DNES and a SNES emulator, other emulators just later, not now.

 

[hbk007]

Would it be possible to just port an existing emulator to the 3ds and tweak it? Like Nestopia for example.
I ask because I am learning how to build emulators so I can make some contributions in the future.
Also, if you can give me some tips, that would be great. I am trying to learn assembler and acquire as many NES technical documents as possible.

 

[Idaho]

Seems like there's a competitor for the SNES emulation : http://gbatemp.net/threads/blargsnes-snes-emulator-for-the-3ds-wip.369900/

 

[st4rk]

Seems like there's a competitor for the SNES emulation : http://gbatemp.net/threads/blargsnes-snes-emulator-for-the-3ds-wip.369900/

Yeah... i know :C

 

[PhoenixWrightX]

Yeah... i know :C

Maybe instead of competing against each other, you can work together to make the best snes emulator possible!

Also, this will allow you to spend more time on a n64 emulator.....

 

[andremario81]

I need help! I got 3dnes on the micro sd card and I got the two folders ROMS and SAVES on the big sd card. I got the homebrew to load but when I try to enter the homebrew there's a black screen and I'm stuck. What can I do without erasing my other saves on the micro sd?

 

[Arisotura]

I gave 3DNES a quick try with SMB, and I gotta say, good work there. No speed issues, it plays nicely. (SMB isn't the most CPU-intensive game I guess, though)

I noticed that some sprite priorities were wrong (ie powerups coming out of blocks, Mario entering pipes, etc), but that's minor. What would be nice imo would be the ability to map the 3DS A/B/X/Y to the NES A/B buttons in whatever way you like, or in a few presets that work well in the popular games.

Keep up the good work, anyway.


N64 will be a tricky one. I believe one would need a JIT to get good performance on the 3DS, but the 3DS's security system makes it impossible to implement a JIT without hacking the kernel.

 

[SpaceJump]

I second the the button mapping!

Anyway, great work. I'm really looking forward to the next versions

 

[st4rk]

I gave 3DNES a quick try with SMB, and I gotta say, good work there. No speed issues, it plays nicely. (SMB isn't the most CPU-intensive game I guess, though)

I noticed that some sprite priorities were wrong (ie powerups coming out of blocks, Mario entering pipes, etc), but that's minor. What would be nice imo would be the ability to map the 3DS A/B/X/Y to the NES A/B buttons in whatever way you like, or in a few presets that work well in the popular games.

Keep up the good work, anyway.


N64 will be a tricky one. I believe one would need a JIT to get good performance on the 3DS, but the 3DS's security system makes it impossible to implement a JIT without hacking the kernel.

Thank you for it, really , about the key map, i will work on it xD, sprite priorities really work, but i need remove it, because speed down :C

JIT = Dynamic Recompilation ? if yes, i wanna do it, maybe is the best way to work N64 good on 3DS, but the biggest problem is because we just can use one core from games :C the other core from ARM11 is to System.

 

[DiscostewSM]

Thank you for it, really , about the key map, i will work on it xD, sprite priorities really work, but i need remove it, because speed down :C

JIT = Dynamic Recompilation ? if yes, i wanna do it, maybe is the best way to work N64 good on 3DS, but the biggest problem is because we just can use one core from games :C the other core from ARM11 is to System.

I don't know much about the 3DS's internals, but wasn't the 3DS updated during the time of Super Mario 3D Land to allow that game to utilize 25% of the other core?

 

[st4rk]

I don't know much about the 3DS's internals, but wasn't the 3DS updated during the time of Super Mario 3D Land to allow that game to utilize 25% of the other core?

Really ? i didn't know about it, good information !

 

[DiscostewSM]

Really ? i didn't know about it, good information !

Well, it's accessible (as demonstrated by that game), but how it would be accessed is something I have no knowledge of.

 

[Arisotura]

The CreateThread SVC call takes a bitmask that tells which CPU cores the thread can run on. One can probably just use this, unless it requires a special permission.

Now, I don't know how the '25% of the system core' would work. Does the kernel monitor CPU usage and kill your app if it goes over that number? Seems unlikely.

 

[st4rk]

The CreateThread SVC call takes a bitmask that tells which CPU cores the thread can run on. One can probably just use this, unless it requires a special permission.

Now, I don't know how the '25% of the system core' would work. Does the kernel monitor CPU usage and kill your app if it goes over that number? Seems unlikely.

Woow, it is so good, i thought it is impossible use the two core from ARM11

 

[Arisotura]

Well, nevermind what I said. Either it requires a special permission, or what has been said about SM3DL isn't true.

Either way, attempting to create a thread on the second core just plain crashes. Doesn't even return a 'not authorized' error code.

 

[st4rk]

Well, nevermind what I said. Either it requires a special permission, or what has been said about SM3DL isn't true.

Either way, attempting to create a thread on the second core just plain crashes. Doesn't even return a 'not authorized' error code.

I never tested this before, :o, i can test it in my CFW, maybe work different(or no).

 

[gbazone]

Hey st4rk, I'm also having the problem that others mention above where I cannot launch 3DNES with Gateway because the icon is pure white with no name. I even tried flashing 3dnes onto its own micro SD card using the old method (gateway image flash software) and had no luck. My Emunand firmware is 7.1.0-16U. Thanks!

 

[gamesquest1]

have you updated to 2.2
you need to be on 2.2 to run homebrew

 

[gbazone]

have you updated to 2.2
you need to be on 2.2 to run homebrew

Aha! You were absolutely right. I was still on 2.1 since nothing exciting was going on at the time of the 2.2 release and I didn't care about online play. Thank you very much!