• Login
  • Register
  • Dolphin Forums
  • Home
  • FAQ
  • Download
  • Wiki
  • Code


Dolphin, the GameCube and Wii emulator - Forums › Offtopic › Delfino Plaza v
« Previous 1 ... 19 20 21 22 23 ... 64 Next »

Wii U emulation
View New Posts | View Today's Posts

Pages (10): 1 2 3 4 5 ... 10 Next »
Jump to page 
Thread Closed 
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Thread Modes
Wii U emulation
10-12-2013, 08:50 AM
#1
Gir Offline
Chaotix
****
Posts: 310
Threads: 21
Joined: Mar 2012
I know Wii-U emulation is a dream away but I am interesting in the technicalities of such a task.

Wii U uses a Triple-Core PowerPC CPU @ 1.24Ghz
Wii uses a Single-Core PowerPC CPU @ 729Mhz

How would a multi-core powerpc be emulated, could each PowerPC core be
emulated on separate threads?

What would the requirements be to emulate the Wii U CPU ?
Find
10-12-2013, 09:36 AM (This post was last modified: 10-12-2013, 09:37 AM by Link_to_the_past.)
#2
Link_to_the_past Offline
Link on steroids really
*******
Posts: 1,767
Threads: 17
Joined: Feb 2010
Without hard evidence only guesses can be made. You can just take the upgraded hardware specs and make a guess with mathematics that you will need three times the cpu cores and about two times the ghz that you need now for wii emulation. It is a highly unreliable figure but you could say it is not entirely unrealistic to expect something among those lines either. So if a four core (preferably 6 core) highly overclocked current/future intel cpu was needed to play something in a decent framerate, it wouldn't shock me...
Find
10-12-2013, 11:13 AM
#3
NaturalViolence Offline
It's not that I hate people, I just hate stupid people
*******
Posts: 9,013
Threads: 24
Joined: Oct 2009
Gir Wrote:How would a multi-core powerpc be emulated, could each PowerPC core be
emulated on separate threads?

Yes.

Gir Wrote:What would the requirements be to emulate the Wii U CPU ?

^What he said.
"Normally if given a choice between doing something and nothing, I’d choose to do nothing. But I would do something if it helps someone else do nothing. I’d work all night if it meant nothing got done."  
-Ron Swanson

"I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. "
-Mark Antony
Website Find
10-12-2013, 12:35 PM
#4
DatKid20 Offline
UDK/Cryengine3/Unity tinkererer
****
Posts: 516
Threads: 26
Joined: Jul 2013
So is the Wii U a three core and overclock version of the Wii or is it actually a whole new architecture that has backwards compatibility?
Find
10-12-2013, 12:45 PM (This post was last modified: 10-12-2013, 12:46 PM by NaturalViolence.)
#5
NaturalViolence Offline
It's not that I hate people, I just hate stupid people
*******
Posts: 9,013
Threads: 24
Joined: Oct 2009
It's ISA and microarchitecture are practically identical but not quite. They are backwards compatible. It has three PPC cores, an arm core (for backwards compatibility with starlet), a much bigger/faster cache, and 32MB of edram manufactured on a single die using a 45nm SOI process by IBM. The arm core and one of the PPC cores are reserved for the OS. And yes it's clocked a bit higher, 1.24GHz like he said.
"Normally if given a choice between doing something and nothing, I’d choose to do nothing. But I would do something if it helps someone else do nothing. I’d work all night if it meant nothing got done."  
-Ron Swanson

"I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. "
-Mark Antony
Website Find
10-12-2013, 12:52 PM (This post was last modified: 10-12-2013, 12:55 PM by MayImilae.)
#6
MayImilae Offline
Chronically Distracted
**********
Administrators
Posts: 4,614
Threads: 120
Joined: Mar 2011
According to delroth, the main problem isn't the CPU, it's the GPU. Flipper was pretty basic, and it was more or less just enhanced for the Wii. The Wii U GPU is an entirely different beast, built from a very modern and full featured GPU. No emulator that has existed up to this point has had to emulate a GPU on that scale before. It would SUCK.
[Image: RPvlSEt.png]
AMD Threadripper Pro 5975WX PBO+200 | Asrock WRX80 Creator | NVIDIA GeForce RTX 4090 FE | 64GB DDR4-3600 Octo-Channel | Windows 11 22H2 | (details)
MacBook Pro 14in | M1 Max (32 GPU Cores) | 64GB LPDDR5 6400 | macOS 12
Find
10-12-2013, 12:59 PM
#7
DatKid20 Offline
UDK/Cryengine3/Unity tinkererer
****
Posts: 516
Threads: 26
Joined: Jul 2013
(10-12-2013, 12:52 PM)MaJoR Wrote: According to delroth, the main problem isn't the CPU, it's the GPU. Flipper was pretty basic, and it was more or less just enhanced for the Wii. The Wii U GPU is an entirely different beast, built from a very modern and full featured GPU. No emulator that has existed up to this point has had to emulate a GPU on that scale before. It would SUCK.
http://wiiudaily.com/wii-u-gpu/


If it does have 400 unified shaders like this website says then its a 5550 with modern features.
Find
10-12-2013, 01:07 PM
#8
NaturalViolence Offline
It's not that I hate people, I just hate stupid people
*******
Posts: 9,013
Threads: 24
Joined: Oct 2009
It's microarchitecture is R700 based not R800. It's feature set is actually older than a 5550, more on par with an HD 4000 series card. And the number of shader units is far from the only important spec.
"Normally if given a choice between doing something and nothing, I’d choose to do nothing. But I would do something if it helps someone else do nothing. I’d work all night if it meant nothing got done."  
-Ron Swanson

"I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. "
-Mark Antony
Website Find
10-12-2013, 01:13 PM
#9
DatKid20 Offline
UDK/Cryengine3/Unity tinkererer
****
Posts: 516
Threads: 26
Joined: Jul 2013
I've seen another website say it might be based on R800 as well. But if it is based on R700 it is between a 4670 and a 4730 when it comes to shader performance.
Find
10-12-2013, 01:23 PM
#10
NaturalViolence Offline
It's not that I hate people, I just hate stupid people
*******
Posts: 9,013
Threads: 24
Joined: Oct 2009
I'm pretty sure nintendo themselves said R700.

You cannot evaluate shader throughput based on the number of shader units alone. Its shader throughput is 352 GFLOPs putting it about on par with a 4650. Of course a number of other things effect actual shader performance so that still isn't the full story.
"Normally if given a choice between doing something and nothing, I’d choose to do nothing. But I would do something if it helps someone else do nothing. I’d work all night if it meant nothing got done."  
-Ron Swanson

"I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. "
-Mark Antony
Website Find
« Next Oldest | Next Newest »
Pages (10): 1 2 3 4 5 ... 10 Next »
Jump to page 
Thread Closed 


  • View a Printable Version
  • Subscribe to this thread
Forum Jump:


Users browsing this thread: 1 Guest(s)



Powered By MyBB | Theme by Fragma

Linear Mode
Threaded Mode