One thing I've wondered... And this is somewhat unrelated, is why the Xbox One doesn't run 360 games. One of the core features of it's OS is the fact that everything is running in a modified Hyper-V environment. So why couldn't MS have emulated the 360 on the hypervisor?! Will be cool to see this project progress and hopefully running on an Xbox One dev kit.
Xenia - An Xbox 360 emulator
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Re: Xenia - An Xbox 360 emulator
#12One thing I've wondered... And this is somewhat unrelated, is why the Xbox One doesn't run 360 games. One of the core features of it's OS is the fact that everything is running in a modified Hyper-V environment. So why couldn't MS have emulated the 360 on the hypervisor?! Will be cool to see this project progress and hopefully running on an Xbox One dev kit.
The 360 ran a PowerPC instruction set while the Original Xbox and Xbox One run x86 architecture. The game would have to be rewritten to run on Xbox One.
I'd assume this makes it difficult.
Re: Xenia - An Xbox 360 emulator
#13One thing I've wondered... And this is somewhat unrelated, is why the Xbox One doesn't run 360 games. One of the core features of it's OS is the fact that everything is running in a modified Hyper-V environment. So why couldn't MS have emulated the 360 on the hypervisor?! Will be cool to see this project progress and hopefully running on an Xbox One dev kit.
Xbox 360 used a PowerPC instruction set. It would seem unlikely that emulation could be efficient enough to have it work reliably good and fast.
Re: Xenia - An Xbox 360 emulator
#14One thing I've wondered... And this is somewhat unrelated, is why the Xbox One doesn't run 360 games. One of the core features of it's OS is the fact that everything is running in a modified Hyper-V environment. So why couldn't MS have emulated the 360 on the hypervisor?! Will be cool to see this project progress and hopefully running on an Xbox One dev kit.
The 360 ran a PowerPC instruction set while the Original Xbox and Xbox One run x86 architecture. The game would have to be rewritten to run on Xbox One. I'd assume this makes it difficult.
You can convert instruction sets on the fly, the technology has been around for a while. One big commercial failure that was partly relying on this was Transmeta and their Code Morphing Software: http://en.wikipedia.org/wiki/Code_Morphing_Software
Here is a more general article on the topic:
Re: Xenia - An Xbox 360 emulator
#15One thing I've wondered... And this is somewhat unrelated, is why the Xbox One doesn't run 360 games. One of the core features of it's OS is the fact that everything is running in a modified Hyper-V environment. So why couldn't MS have emulated the 360 on the hypervisor?! Will be cool to see this project progress and hopefully running on an Xbox One dev kit.
In reality you could emulate it. The problem is the xbone doesn't have a powerful enough x86 processor to emulate the powerpc 360. It was around 2010 that mainstream computers matured enough to easily emulate a ps2, for instance.
Re: Xenia - An Xbox 360 emulator
#16One thing I've wondered... And this is somewhat unrelated, is why the Xbox One doesn't run 360 games. One of the core features of it's OS is the fact that everything is running in a modified Hyper-V environment. So why couldn't MS have emulated the 360 on the hypervisor?! Will be cool to see this project progress and hopefully running on an Xbox One dev kit.
Xbox 360 used a PowerPC instruction set. It would seem unlikely that emulation could be efficient enough to have it work reliably good and fast.
It isn't necessary to purely emulate every instruction, you can cache translated code segments like a JIT compiler does. It has been done before for fast x86 emulation on a VLIW chipset: http://en.wikipedia.org/wiki/Code_Morphing_Software
More details: http://en.wikipedia.org/wiki/Binary_translation#Dynamic_bina...
Re: Xenia - An Xbox 360 emulator
#17That's a great project and I'm going to dive into the source pretty soon! However I'm not sure I really like the tone used in the README.md... :/
As others have said, the word "emulator" draws a distinct crowd who is otherwise (almost) completely non-technical. Having frequented a lot of developer forums for both, I'd say it's analogous to many of the sorts of threads you get about Android development on XDA.
Re: Xenia - An Xbox 360 emulator
#18One thing I've wondered... And this is somewhat unrelated, is why the Xbox One doesn't run 360 games. One of the core features of it's OS is the fact that everything is running in a modified Hyper-V environment. So why couldn't MS have emulated the 360 on the hypervisor?! Will be cool to see this project progress and hopefully running on an Xbox One dev kit.
The 360 ran a PowerPC instruction set while the Original Xbox and Xbox One run x86 architecture. The game would have to be rewritten to run on Xbox One. I'd assume this makes it difficult.
That's the whole point of a VM right? OS X could run PowerPC apps with Rosetta when they went Intel. I just assumed that we could do the same since the Xbox One has a beastly processor compared to the aged 360 one.
Re: Xenia - An Xbox 360 emulator
#19Earlier quoted context omitted.
The 360 ran a PowerPC instruction set while the Original Xbox and Xbox One run x86 architecture. The game would have to be rewritten to run on Xbox One. I'd assume this makes it difficult.
That's the whole point of a VM right? OS X could run PowerPC apps with Rosetta when they went Intel. I just assumed that we could do the same since the Xbox One has a beastly processor compared to the aged 360 one.
Rosetta was based on QuickTransit technology: http://en.wikipedia.org/wiki/QuickTransit
Re: Xenia - An Xbox 360 emulator
#20One thing I've wondered... And this is somewhat unrelated, is why the Xbox One doesn't run 360 games. One of the core features of it's OS is the fact that everything is running in a modified Hyper-V environment. So why couldn't MS have emulated the 360 on the hypervisor?! Will be cool to see this project progress and hopefully running on an Xbox One dev kit.
It would require emulation. And while it's fairly easy to emulate apps compiled for powerpc to run on x86, it's much harder to do so with games while maintaining performance.