[NEWS]Des infos sur l'émulateur Nintendo 64: PS364 : News - PS3-Infos

[Attila]

Voici des informations de emu_kidid, qui travaille sur l'émulateur de Nintendo 64, PS364.
Il nous explique les problèmes rencontrés et les raisons de retards sur celui-ci.

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Ainsi, il voulait porter le projet depuis le code sur Wii, mais malheureusement le code du recompilateur dynamique qui permet d'avoir une vitesse grandement améliorée n'est pas compatible avec la PS3, et nécessite un recodage complet ce qui prendra beaucoup de temps :

We hit a roadblock after getting pretty far. The dynamic recompiler we've written for Wii is totally incompatible with the PS3

Even though both the consoles share the same CPU instruction sets (mostly), our dynarec is written for a PPC 32bit CPU following the EABI, whereas the PS3 needs PPC 64bit and ABI. We're in the process of rewriting it but it is a major task - this is what's causing the delay.

I have another question emu_kidid if it doesnt bother you.

Do you see any BIG difference between the wii port to PS3 (upcoming) port in terms of speed, playability, glitches/bugs? I am really curious to know what pros or cons for both ports.

Thank you again for your time.

gamba, the PS3 port is a lot easier for us to do since we have so much more memory to play with. In terms of speed, it should be full FPS for all games, as far as playability and compatibility go, it'll be just like Wii64 on the Wii - heck it'll even look the same

I think whoever said that doesn't know much

We have hardware accelerated graphics already using PSL1GHT and although the shaders are static (no compiler support), it is fine, just more work for us.

We don't use the SPUs either, but we shouldn't, after all, we're emulating a 93mhz cpu on a 3ghz or so cpu

We are getting faster performance on the PS3 using the pure interpreter vs the Wii using the same, but not much, which I must admit came as quite a shock to us. Initially we figured, pure interpreter + ps3 = 'boom instant port'. How wrong we were indeed.

You may be right about the PPC in the PS3 being useless/underpowered, but we haven't given up yet - we'll see once we get the recompiler written. We're confident it will run games at full FPS if the one on the Wii almost did in most cases - and that was before the rewrite.

As for not using the SDK and instead using the open sourced PSL1GHT, I wouldn't see any point of using the SDK over PSL1GHT - I mean, we're not going to take the time to thread stuff off onto the SPUs - this would take more effort than just optimizing our recompiler.

Site officiel : http://www.gc-forever.com/forums/viewtopic.php?f=9&t=557
Source : http://www.ps3-addict.fr/forum/viewtopic.php?f=13&t=3176