xbox emu????

[FireGL]

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Xbox emulator ? => cxbx - Hilbert Hagedoorn @ 6:07

What is cxbx ? It runs xbox software on a compatible pc and some hackers are extremely far with it. Since the xbox is essentially an x86 pc system inside of a box with specific hardware and a specific operating system, there is practically a 1 to 1 hardware requirement for accurate emulation.

It would be possible for cxbx to run software on a faster pc, but a pc slower than an actual xbox will run software slow. it is expected that you will need about a 750mhz processor and a capable video card in order to emulate most xbox software.

the process of converting an xbox executable (.xbe) to a windows "portable executable" (PE, [.exe]) has been a success. despite rumors floating around, .xbe -> .exe converstion is entirely possible, and is already being done. the problem is that a lot of work is necessary to fullfill the environmental expectations of an xbox executable. most importantly, kernel exports and certain hardware are expected, and must be emulated. the kernel emulation will be done by wrapping around existing win32 api. this is explained in the progress section.

head over to the download section to grab a copy of cxbx 0.3.0. this is the first version released that demonstrates the successfull hijacking of xbox kernel exports. the next step in emulating the xbox system is to provide accurate wrappers for all the xbox kernel exports. this can be done one of several different ways. currently, i am experimenting with both user mode and kernel mode techniques. each has its advantages, and i am unsure which method will be used in the end.

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[Ninjaa]

LMAO @ your sig FireGL.

Anyways, I hate myself for asking this, but does it run commercial games yet? I am kind of anxious to play DOA Xtreme Beach Volleyball.

[Syed Fawad]

Is this real? or is it supposed to be a technical joke?

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[FireGL]

LMAO @ your sig FireGL.
Anyways, I hate myself for asking this, but does it run commercial games yet? I am kind of anxious to play DOA Xtreme Beach Volleyball.

whats the meaning of LMAO????

i dont know yet....... me i'd like to play the shenmue and doa

Is this real? or is it supposed to be a technical joke?

oh don't know but i guess its not coz it's guru3d men.... i don't think they will ruin their reputation on this one....

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[Allnatural]

Originally posted by FireGL
whats the meaning of LMAO????

Laugh My A$$ Off

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I doubt a 750mhz CPU could really be able to emulate an Xbox.

[Kellicros]

Interesting, well, is GF2MX400 a capable card?

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[E}I{]

I heard there is PIII 600 or 700 inside. So why not?. Main problem is video compatibility IMO.

I thought that the computer emulating has to be more powerfull then the compter being emulated?

i.e

PSX CPU = 33MHz (or thereabout)
A 33MHz PC would not be able to emulate a PSX.

Please correct me if I'm wrong though

[FireGL]

xbox is just a pc cut off.... not like other console very diff.. on pc

Interesting, well, is GF2MX400 a capable card?

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[E}I{]

You don't need to emulate PIII on PIII you only have to emulate system kernel and specific hardware.

E}I{ : Good point

[winter_mute]

So?
How do U think
What will be hardware requirement??
CPU 1G & GF4Ti card??

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=> PSEmu.pl <= PlayStation Emulation

[E}I{]

I not quite sure, but probably yes. Even if Xbox much more powerful than PS2 it will require much less I not quite sure about compatibility of Nvidia chip in Xbox with normal Geforces, but it is similar to GF3 or 4. Sorry, I not know much about non-PSX consoles . Anyway, even if 100%compatibility on HW level exists, it will be quite hard to use it directly from windows, so there will be emulation layer which can require more CPU power.

[Ninjaa]

I highly doubt that it would take much more power than a 1GHz P3 and a GeForce4. It's not like you have to actually emulate anything other than software.

[E}I{]

Probably yes, but then why we still haven't DC emulators working on Kyro videocards only? They are almost completely compatible.
Even if GF4 is completely compatible with it, how you are going to use it directly from Windows, not through drivers? Write your own? And if you do, then how about other videocards? CPU is really not a problem, they are always compatible(almost) with previous generation, yet for non PIII some emulation will be required to cheat CPU detection routines(and i sure they are present).

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Last edited by E}I{; August 29th, 2002 at 23:58..

[Alias]

well the big issue really is the memory bandwidth. The xbox has unified bandwidth, meaning that both the video chip and the cpu and the southbridge sound/networking chip (basically everything) share the 6.4 GB/ sec bandwidth to the memory. So it is up to the developer to utilize the bandwidth tho their needs. PC's on the other hand have seperate system memory (fastest being the 4.2 GB/sec for 1066 RDRAM) and another for video memory (Fasted being radeon 9700 with 19.8 GB/sec). The real issue is handling calls to memory that took the same path on the xbox is taking different paths on a PC. I think if you can somehow manage the memory bandwidth and calls to the same pool of memory to separate pools, xbox emulation can be pulled off.

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[E}I{]

That's not really a problem IMO. I don't think xbox games are only throwing many megabytes of data from one place to another to fill this bandwidth They got much more things to do Anything that's more complex than simple copying, for example doing geometry transforms, colorspace conversions will be limited by CPU speed on such system and will work better on faster CPU with slower memory.
And to sum things up I don't thing "bandwidth" is really worth comparing. Gfx bandwidth maybe, but it already surpassed in newer videocards. Anyway, great numbers you see in ads are only part of marketing strstegy. Everyone tries to hide weak points and find some digits which will move their product to top. And very often they forget to mention that these numbers are not obtainable in real working conditions. Especially Sony.

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Last edited by E}I{; August 30th, 2002 at 07:16..

[Mog]

Hey ninja, do you want to play DOA beach volley ball for the babes or the game?

[atze]

Originally posted by j1188
I thought that the computer emulating has to be more powerfull then the compter being emulated?

i.e

PSX CPU = 33MHz (or thereabout)
A 33MHz PC would not be able to emulate a PSX.

Please correct me if I'm wrong though

Your are right. But PSX CPU is a almost full RISC cpu. This means that is its very good at building 3d graphics. A normal CPU has only a part RISC processing, because it needs to do other things than building 3d graphics. The X-box CPU is also a simple normal PIII CPU. That's where the big difference is. The PSX is also incredible hard to emulate, that makes the emulation of psx even slower.

Greetinx
Atze