Viewing Thread:
"Backwards compatability confirmed at last!!!"

You need to have a Hard Drive in your 360 however, but it IS backwards compatible.

Only problem with that is they've removed brach predictions from the pipeline and the PPC cores only do in-order execution, not out of order so raw performance for emulation will spend a lot of time doing those, and building an emulator wouldn't be easy.

Since the graphics are done in Direct X, moving from nVidia to ATI shouldn't be an issue. The only issue will be the X86 to PPC architecture. I actually think they have enough power to do on the fly software emulation. Three 3.2 GHz physical cores, all of which support simultaneous multithreading to emulate a 733 MHz P3/Celeron. A 500 MHz Alpha chip used to be able to emulate a P2 at around 300 MHz using FX!32.

My guess is that the emulation software will be on the harddrive and that they say it will work with the top Xbox games is because they probably can't get them all tested in time. There will also likely be a degree of PPC code generation so that all subsequent plays of Halo run at least some of the code natively.

I KNEW that'd come up....

You fancy people and your fancy 2 in 1 kitchen appliances!!!!!(!)

Hang on. I toast bread in my Microwave as it has a grill...

So that means I can play Xbox games on a 360, yey!...

Or a microwave in a toaster.

Why don't microsoft just stick the 360 in an Xbox, and then call it the Xbox 360.


...oh wait.

OddToe wrote:
> Emitime wrote:
> Because the Xbox 360 and Xbox are completely different. It's like
> trying to get a microwave to act as a toaster. It just wouldn't
> work.
>
> It could work, but to get it to work would be mucho expensive.

Much like sticking toaster components into a microwave then?

My comparison rocks!

S'alright.

Sorry, for using the word rubbish, that was a bit harsh, I went to change it, but you've already quoted me :D.

Bonus wrote:
> OddToe wrote:
> Basically:
> The reason the PS2 could play PS1 games is because the processors in
> both machines have the same architect (Or similiar), most likely the
> x86 architect.
>
> Rubbish.
>
> The PSOne used a MIPS3000 processor, the PS2 used a MIPS5000 series
> processor.
>
> The PS2 HAS a MIPS3000 series processor in it to run PSone games.
>
> It acts as an IO controller for processing input etc. when the PS2
> games are using the main processor.

:D

It's just how I thought it would run.

OddToe wrote:
> Basically:
> The reason the PS2 could play PS1 games is because the processors in
> both machines have the same architect (Or similiar), most likely the
> x86 architect.

Rubbish.

The PSOne used a MIPS3000 processor, the PS2 used a MIPS5000 series processor.

The PS2 HAS a MIPS3000 series processor in it to run PSone games.

It acts as an IO controller for processing input etc. when the PS2 games are using the main processor.