Homebrew blargSnes -- SNES emulator for the 3DS (WIP)

the_randomizer · Jan 21, 2015

StapleButter said:
3DS is 268 MHz dual-core, PSP is 222 to 333 MHz single-core.

Also consider that you're limited to 30% of the second core on the 3DS.

N64 might be a fun one to attempt. Apparently there's a N64 emulator for the PSP, how does it run? Just out of curiosity, not like I'm going to be maintaining two emulator projects at once.

Not very well, N64 emulation on there's more a proof of concept than anything.

dekuleon · Jan 21, 2015

StapleButter said:
3DS is 268 MHz dual-core, PSP is 222 to 333 MHz single-core.

Also consider that you're limited to 30% of the second core on the 3DS.

N64 might be a fun one to attempt. Apparently there's a N64 emulator for the PSP, how does it run? Just out of curiosity, not like I'm going to be maintaining two emulator projects at once.

TBH very bad... I think the only game that runs at a playable speed is Mario 64!

Arisotura · Jan 21, 2015

Hah, the classics before!

Phantombrainm said:
What about N3DS? It has a better CPU. Can't find much information on it.

The N3DS CPU isn't faster. It just has 4 cores instead of 2.

John Player · Jan 21, 2015

Seems like 3DS is not much an improvement over PSP after all. Should have known; the original NDS lagged far behind its competition in all aspects, except exclusive games, of couse

. So it´s not like Nintendo likes to release cutting-edge technology..

Also, seems like its dual-core design makes the task of harvesting its power more challenging than it was on PSP. That said, it´s amazing to see how far Blargsnes has come in a short period of time. At this rate, maybe we can dream of playing Star Fox full speed in 3D someday!

shaosam · Jan 21, 2015

I have the 1.2 .cia already installed. Do I need to find and uninstall that first before I install 1.3? Or can I just install 1.3 without worrying about the old version?

ubergeek77 · Jan 21, 2015

Not sure if StapleButter has established an 'official' compatibility list yet, but I'd like to report that Bahamut Lagoon (the English patched version) is currently unplayable. It loads and immediately brings up a Music Test menu, but nothing else can be done from there. None of the buttons work, can't move down the menu, etc. This is odd, because the game doesn't load up to this menu immediately while on a PC emulator or traditional hardware. The Japanese, unpatched version of the ROM simply displays a black screen and doesn't load at all. It doesn't crash the emulator to the point of a reboot, however.

This game does not use any special expansion chips.

(blargSNES 1.3 .cia on 9.2 emuNAND)

logg · Jan 21, 2015

shaosam said:
I have the 1.2 .cia already installed. Do I need to find and uninstall that first before I install 1.3? Or can I just install 1.3 without worrying about the old version?

You can just install over the old one.

mvmiranda · Jan 21, 2015

logg said:
You can just install over the old one.

Yup!
I just did it!

BTW: I'm using the CIA version on a GW emuNAND.

shaosam · Jan 21, 2015

logg said:
You can just install over the old one.

Thanks!

AndrewPH · Jan 21, 2015

StapleButter said:
3DS is 268 MHz dual-core, PSP is 222 to 333 MHz single-core.

Also consider that you're limited to 30% of the second core on the 3DS.

N64 might be a fun one to attempt. Apparently there's a N64 emulator for the PSP, how does it run? Just out of curiosity, not like I'm going to be maintaining two emulator projects at once.

N64 emulation is a lot better than it would be on the 3ds because it has a MIPS-based 64-bit processor.

Even then, it doesn't work very well - like another person said, only SM64 runs playably.

bobmcjr · Jan 21, 2015

AndrewPH said:
N64 emulation is a lot better than it would be on the 3ds because it has a MIPS-based 64-bit processor.

Even then, it doesn't work very well - like another person said, only SM64 runs playably.

PSP is only MIPS32, not 64. I believe it runs as well as it does because of the huge amount of HLE optimizations they've done. When you first boot a game, it caches patched game code into .hle files.

AndrewPH · Jan 21, 2015

bobmcjr said:
PSP is only MIPS32, not 64. I believe it runs as well as it does because of the huge amount of HLE optimizations they've done. When you first boot a game, it caches patched game code into .hle files.

My bad, I was under the impression it was 64bit from some cursory reading I was doing.

Still, I'm sure it being MIPS-based at all makes it a bit easier on it.

Arisotura · Jan 21, 2015

I wonder how much 64-bit is used on the N64. Not like it needs an address space bigger than 4GB.

weatMod · Jan 21, 2015

I thought you were already working on a N64 emulator or maybe I am confusing you with st4rk?

Arisotura · Jan 21, 2015

No, it was st4rk.

I personally know I'd have trouble keeping up with two projects or more.

bobmcjr · Jan 21, 2015

StapleButter said:
I wonder how much 64-bit is used on the N64. Not like it needs an address space bigger than 4GB.

Donkey Kong 64 seems to use it quite frequently, and DK64 had broken collision detection on Mupen64plus-ae for a while until some of these commits: https://github.com/Gillou68310/mupen64plus-ae/commits/master

Arisotura · Jan 21, 2015

Hah, a game-specific hack.

I hope I'll be able to avoid those as much as possible in blargSNES.

bobmcjr · Jan 21, 2015

StapleButter said:
Hah, a game-specific hack.

I hope I'll be able to avoid those as much as possible in blargSNES.

They aren't actually game specific hacks, a lot of the 64-bit ops in the dynarec were pretty broken (Ari64 even admitted they weren't fully functional).

Arisotura · Jan 21, 2015

I was talking about the very first commit. It divides clocks_per_op by 2 if it detects DK64.

bobmcjr · Jan 21, 2015

StapleButter said:
I was talking about the very first commit. It divides clocks_per_op by 2 if it detects DK64.

Oh yeah those. Heh. Mupen does have a lot of game specific settings unfortunately, especially with gfx plugins. We also hard code in some cheat codes that make games run better (prevent Pokemon snap from freezing, increase the speed of OOT's pause menu opening etc)

Homebrew blargSnes -- SNES emulator for the 3DS (WIP)

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