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Forums - Microsoft - Microsoft Researching an Xbox 360 Emulator for the Xbox One.

fatslob-:O on 05 April 2014
lucidium said:

Yeah still half asleep, PS2 is RISC and 360 Ppc but roughly The same disparity between the two and x86, also pcsx2 took over a decade to get the INTERPRETER to run games good enough to be played, many still have bugs both computationally and graphically, if you switch mode over to dynamic clrecompiler for more accurate emulation everything slows to a crawl.

But again, PS2 emulation thus far has been a case of hacking up code to get one game to work and said hack improving operation of another, back and forth over the past decade to get to the current point, this is a two generation old console that ran subHD with no hypervisor or advanced GPU.

 

If they're "looking in to it" only now then its very doubtful it would be ready by the next Xbox let alone this one

Both the PS2 and xbox 360 use a RISC originated ISA but I'd prefer not to use the term RISC or CISC for classification purposes because the lines between them have blurred dramatically in the recent years. You have the whole interpreter and dynamic recompiler thing wrong ... The purpose of the interpreter is only used for experimentation purposes and is SLOWER than the recompiler. The recompiler on the other hand is both FASTER and has the MOST COMPATIBILITY. 

These hack used to make a situation worked has stopped for the most part and that along goes with dolphin. The GPU really isn't the issue seeing as how it has a relatively simple instruction set architecture.

I would mostly say that CPU emulation of the IBM Xenon is the issue for the xbox one ...



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lucidium on 05 April 2014
fatslob-:O said:
lucidium said:

Yeah still half asleep, PS2 is RISC and 360 Ppc but roughly The same disparity between the two and x86, also pcsx2 took over a decade to get the INTERPRETER to run games good enough to be played, many still have bugs both computationally and graphically, if you switch mode over to dynamic clrecompiler for more accurate emulation everything slows to a crawl.

But again, PS2 emulation thus far has been a case of hacking up code to get one game to work and said hack improving operation of another, back and forth over the past decade to get to the current point, this is a two generation old console that ran subHD with no hypervisor or advanced GPU.

 

If they're "looking in to it" only now then its very doubtful it would be ready by the next Xbox let alone this one

Both the PS2 and xbox 360 use a RISC originated ISA but I'd prefer not to use the term RISC or CISC for classification purposes because the lines between them have blurred dramatically in the recent years. You have the whole interpreter and dynamic recompiler thing wrong ... The purpose of the interpreter is only used for experimentation purposes and is SLOWER than the recompiler. The recompiler on the other hand is both FASTER and has the MOST COMPATIBILITY. 

These hack used to make a situation worked has stopped for the most part and that along goes with dolphin. The GPU really isn't the issue seeing as how it has a relatively simple instruction set architecture.

I would mostly say that CPU emulation of the IBM Xenon is the issue for the xbox one ...

rofl yeah, mixing up shit again, totally not on the ball today, still in bed due to coming down with something over the weekend, actually tried booting my xbone with a DS4 earlier.

360 uses a PPC cpu, which is why i mentioned it, honestly havent dug around in pcsx2 source for years now but last time i did it was a mess.

blerg, will come back to the topic when im feeling better, going back to bed.



Mystro-Sama on 05 April 2014

Smart move. This wouldn't be happening if there was no competition.



Zappykins on 06 April 2014
BasilZero said:
Zappykins said:
I would love if I could play some of my old 360 games on my Xbox One. Even if it ends up just being the digital ones (I got Alan Wake digitally.) But Xbox One plays DVD's so if would hopefully do both. How great it would be that if at E3 they announce xx many X360 games will no play on your Xbox One!

This would make me, and the person I loan my Xbox 360 very, very happy!


I wouldnt be surprised if they do what Sony did with the PS2 classics.....having you to rebuy the games again digitally ~_~.

That I wouldn't like that much.  Unless it was like a $3 game and had some improvements to it.  Like seeing how Brothers would like in DirectX 12.  It was good the way it was, but you can always polish more (except for when Stephen Spielburg re does his movies.)



 

Really not sure I see any point of Consol over PC's since Kinect, Wii and other alternative ways to play have been abandoned. 

Top 50 'most fun' game list coming soon!

 

Tell me a funny joke!
Dark_Lord_2008 on 06 April 2014

Imagine XBox 360 being upgraded with software program to be able to play XBox One games at a lower frame rate and lower resolution? A software emulator that upgrades the older console to play games designed for a more powerful console would be a miracle.



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Mr Puggsly on 06 April 2014
lucidium said:
Won't happen, were barely emulating the ppc CPU in the PS2 on PC, emulating the CPU and GPU on the 360 is going to take hardware a lot more powerful than a weak amd APU

Barely emulating PS2? Most PS2 games are fully playable on a PC.

The Gamecube and Wii use a PPC CPU and most of those games are emulated on PC as well.



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walsufnir on 06 April 2014

As a tech guy, I highly doubt this is possible. But, MS knows what it is doing and comparing current emulators with an emulator developed by professionals who actually know the hardware is a bit off. If they can do it, I am highly tempted to buy the One in 2-3 years...



walsufnir on 06 April 2014
Mr Puggsly said:
lucidium said:
Won't happen, were barely emulating the ppc CPU in the PS2 on PC, emulating the CPU and GPU on the 360 is going to take hardware a lot more powerful than a weak amd APU

The Gamecube and Wii use a PPC CPU and most of those games are emulated on PC as well.


Yes, one CPU. And an especially slow one. No match for the 3 cores used in 360...



Mr Puggsly on 06 April 2014
walsufnir said:
Mr Puggsly said:
lucidium said:
Won't happen, were barely emulating the ppc CPU in the PS2 on PC, emulating the CPU and GPU on the 360 is going to take hardware a lot more powerful than a weak amd APU

The Gamecube and Wii use a PPC CPU and most of those games are emulated on PC as well.


Yes, one CPU. And an especially slow one. No match for the 3 cores used in 360...

I'm not sure what your point is.

The 360 emulator would obviously be more demanding of resources than a Wii emulator. But does mean no PC can handle a 360 emulator? Absolutely not.



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lucidium on 06 April 2014
Mr Puggsly said:
walsufnir said:


Yes, one CPU. And an especially slow one. No match for the 3 cores used in 360...

I'm not sure what your point is.

The 360 emulator would obviously be more demanding of resources than a Wii emulator. But does mean no PC can handle a 360 emulator? Absolutely not.

 

Topic said:

Microsoft Researching an Xbox 360 Emulator for the Xbox One.

And PS2 emulation still is "barely", theres a huge difference between running and running properly, after trying out latest SVN pcsx2 id say only about 20% are running with no notable issues, most of the time however theres graphical glitches here and then in 3d/menus, missing shadows, surfaces, sound syncing issues and so on.

If this was something Microsoft planned to release and make money from it would need to be in a form where such issues were near zero otherwise the backlash would be painful.

I tried 4 games thus far (all legitimate PS2 disks in my optical drive, all in minty fresh condition).

Okami (SLPM66375) - Would not boot at all, black screen
Spy Fiction (SLPS25311) - Worked okay, no major graphical glitches but sound syncing issues and points of slowdown
Ridge Racer V (SCES50000) - Major graphical glitches throughout all menus, video playback and environment/vehicle texures as well as shadows, large portions of slowdown during scripted events
KU-ON (SLUS21007) - Sound syncing issues and occasional slowdown

These all at native-ps2 resolution, no fancy stuff enabled, on a 3 way titan black system and an i7 3970X cpu, not exactly a sluggish machine.