Great work Toad, I've been following some of your work since you posted the SdL Mame on Tehskeen.

 

I believe he praised the Wii CPU being more powerful than people give it credit, I would think Nestopia to be feasible; if a cycle-accurate Genesis emulator (which has pretty complex hardware) and run full speed...well you get the idea.

 

I believe if you program only against one main CPU (like we do for pretty much most emus), you would find that the PS3/Xenon CPUs in practice are only about 20% faster than the Wii CPU.

I've ported the same code over to enough platforms by now to state this with confidence - the PS3 and 360 at 3.2GHz are only (at best - I would stress) 20% faster than the 729Mhz out-of-order Wii CPU without multithreading (and multithreading isn't a be-all end-all solution and isn't a 'one size fits all' magic wand either). That's pretty pathetic considering the vast differences in clock speed, the increase in L2/L1 cache and other things considered - even for in-order CPUs, they shouldn't be this abysmally slow and should be totally leaving the Wii in the dust by at least 50/70% difference - but they don't.

BTW - if you search around on some of the game development forums you can hear game developers talking amongst themselves about how crap the 360/PS3 CPUs were to begin with. They were crap from the very first minute the systems were launched - with MS hardware executives (according to some 360 'making of' book) allegedly freaking out when IBM told them they would be getting in-order CPUs for their new console - which caused them to place an order to have three 'cores' instead of one because one core would be totally pathetic (pretty much like the PS3 then where you only have one main processor and 6/7 highly specialized 'vector' SIMD CPUs that are very fast but also very low on individual RAM and essentially have to be able to do some heavy code weightlighting for you to gain anything). Without utilizing multithreading, you're essentially looking at the equivalent of Pentium 4-spec consoles that have to be helped along by lots of vector CPUs (SPUs) and/or reasonably mid-specced, highly programmable GPUs (which the Wii admittedly lacks).

 

To be fair though, game developers have learned to go multithreading heavy and games these days are all about fancy polygonal graphics models and post-processing shaders - stuff where lots of parallel SIMD processors and a fancy GPU are the main crux of the system - and the PS3/360 are capable there - so they've managed to work around the main CPU being so utterly weak. That and the fact that with HDTVs - most HDTVs cannot be guaranteed to have zero input lag so you don't have to worry about running your games at 60fps since you would cut out a large percentage of your potential audience because they wouldn't own a TV capable of handling the input to action response time to be able to play it properly - so what they do instead is run it at 30fps - which leaves enough wiggle room for even the worst HDTVs with lots of post-processing filters going on that slow down the response time.

It's for this reason you have seen such a surprising lack of rhythm action games as well this generation on 360/PS3 - something like Parappa or Space Channel 5 I mean.

 

Does anyone has loading problems loading RetroArch? Mine is taking so long to load and in some cases,it doesn't load at all...

 

First thanks for your work again but if posible add psx core not matter have requires much machine but its a good idea for test, and last question mame core its avalaible for wii???

 

Thanks for your answer and maybe asking something more:

I see page libretro in github and appears another modules:

stella (atari 2600 ????) - yabause (saturn?????) - mednafen-pcfx (pc engine fx???) - mednafen-lynx (atari lynx????) - mednafen-vb (virtual boy???) - meteor (GBA)

And see another how bsnes, bnes

 

Why isn't RetroArch on WiiBrew.org yet?

 

Does anyone have a working forwarding channel for retroarch yet?

 

seconded

Is it feasible, what with the many .dol files and all?

PS. possible mame support? hooooooo boy