Anyone intrested in Amithlon type PS3 Amiga emulator?

[Piru]

@Painkiller

Hardware target should be A1200 with either 040 or 060

PS3 isn't fast enough for that I'm afraid.

[Piru]

@Trev

The last time I looked at Amithlon, it was running on a Celeron 333 with 128KB level 2 cache--certainly not the world's fastest processor.

Last time I looked at Amithlon, it didn't run on PS3.

In fact all you have is UAE - without JIT.

It seems to me that an Amiga-like hypervisor (on top of the PS3 hypervisor) designed to run across multiple SPEs would be fast enough.

And who'd write that? Amiga emulation doesn't multithread anyway.

[Piru]

@Trev

In terms of functionality, UAE would be just as capable.

But in terms of performance, not.

There's no reason a proper design couldn't take advantage of multiple execution units to implement the asynchronous parts of the system

Except that there really isn't any asynchronous parts, everything must be really tightly syncronized to get proper emulation.

or even offload emulation tasks like recompilation.

If JIT would be implemented it really wouldn't be worth the trouble to use SPEs for the translation. SPEs have akward (read: no) access to the main system memory, and the actual translation takes relatively little CPU resources -> just use the PPE.

[Piru]

@Painkiller

I really had in mind a complete custom emulator that is able to boot in PS3

That'd be a massive project, and the end result would likely be inferior to UAE regardless.

Shouldn't it be possible to emulate Amiga custom chips with SPEs etc.

Not really.

Even if it would (in theory you can perform any computational problem on the SPEs too), it wouldn't make any sense. It would be slower than running the emulation with the PPE alone.

SPEs are no replacement for general purpose processor.

[Piru]

@Painkiller

Well if that is the case then why not focus on JIT for PPC platforms?

I guess everyone is happy running UAE on x86.