Idea: PSP emu?

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xmfreak
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Re: Idea: PSP emu?

Postby xmfreak » Tue Sep 08, 2009 7:11 am

hyellow wrote:I didn't say it would be easy or even possible, but I kinda liked the idea, for one, never thought would be possible to play psx games on ppc. Hell, psx games (in times there was Bleem!) would't run fairly enough on my p3 1.2ghz, and now fpsece can run on a ppc. But still, it's quite a challenge, but i'm hoping that the first playable beta will be out within two or three years from now.

Keep in mind that PSP has a 266mhz cpu, PSX just had a 33mhz cpu and it's still slow on windows mobile. It doesn't matter how hard you try, it's just impossible to run a psp emulator on actual devices (sorry to answer an old post :P)
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hyellow
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Re: Idea: PSP emu?

Postby hyellow » Tue Sep 08, 2009 2:48 pm

well, it was just an idea. untill we found out wether fpsece 0.10 will make a real difference, meaning on devices that are not omnia-like or snapdragon based, i'll be playing snes emulation full screen with 60 fps on my tp2. it works like a treat with the keyboard.

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Re: Idea: PSP emu?

Postby ell » Sun Sep 13, 2009 11:45 pm

Nobody can't say it is impossible until someone try to port it. Guys, probably most of you don't know it but first versions of PSX emulators for Windows Mobile was made about 7 (!!) years ago, in 2002. You guys think, that someone believe it would be possible then before someone tried?

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Re: Idea: PSP emu?

Postby jamuk2004 » Mon Sep 14, 2009 11:40 am

XMFreak hit the nail on the head...

PSX = 33Mhz

Needs about 600 Mhz (Cortex 8) to run full speed I'd guess. That's about 18x the power of the actual console!

Think how much power we need for PSP, let alone the development time needed!

Although dev time could probably be dvided by 10 if the developers actually allowed people to test the software *rolls eyes*
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Re: Idea: PSP emu?

Postby Q-Ball » Mon Sep 14, 2009 6:14 pm

ell wrote:Nobody can't say it is impossible until someone try to port it. Guys, probably most of you don't know it but first versions of PSX emulators for Windows Mobile was made about 7 (!!) years ago, in 2002. You guys think, that someone believe it would be possible then before someone tried?

As I already said:
The quantity of MHz does not influence on something... I mean it's simply a maximum frequency with which processor works, i.e. quantity of operations.
In PSP it is specialised operations, on which Pocket PC must have about 2.5 MHz.
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Re: Idea: PSP emu?

Postby Chaosstorm » Sun Sep 20, 2009 8:03 pm

Well.. if we could use every piece of hardware ( cpu / gpu ) in full speed it should be possible :P but since you have to write every driver from scratch its almost impossible.. for the pandora console ( www.pandora.org) was a guy making a psp homebrew emulator :P and there was a while ago also some one making an N64 for the psp .. so never say its impossible .. it think devices in the future might be able to run things like n64 or psp :P

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Re: Idea: PSP emu?

Postby xmfreak » Sun Sep 20, 2009 9:50 pm

But PSP is a lot more powerfull than N64. A PSP homebrew emulator may work, but not commercial games. Actual devices can't afford that.
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Re: Idea: PSP emu?

Postby leadbelly » Tue Oct 13, 2009 12:49 am

CloudStrife86 wrote:Thing is though, the PSP is closer to the PS2 in terms of spec than it is a PSone. Can anybody really imagine a working PS2 emulator on a phone? I can't.
I think It'll be a couple of years before any mobile is capable of emulating a console as powerful as PSP or PS2.
That's not saying it wouldn't be cool, I hope I'm proven wrong.


i would imagine the PS2 being much, much harder to emulate than the psp.

you'd be waiting a long time for a ps2 emulator for PPC to surface. the ps2 had several processing units. emulating multiple chips running in parallel is quite a task apparently.

it's easier to emulate an xbox or gamecube than it is to emulate the ps2 and yet both consoles were better in terms of raw power.

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Re: Idea: PSP emu?

Postby guizmox » Tue Oct 13, 2009 3:34 pm

You have to remember that MHZ does not have something to do with speed.

Exemple :

PocketPC, phones, Iphone... are actually using ARM architectures : This sort of CPU's does not have any floating-point unit (but they are much more battery friendly than any other CPU).

Remember : Pentium and Cyrix CPUS (X86 architecture) : The Cyrix floating-point unit was very slow, compared to the Pentium's one. That's why, in term of performances, a Cyrix clocked to 200mhz was equivalent to a Pentium 133mhz.

There are several architectures : ARM, RISC, X86, MIPS... They are stricly incompatibles, and each one does have his advantages (Microsoft Windows does only run with X86 hardware for exemple)

Back to our ARM CPU's : It's a very slow CPU because of it's lack of FPU. And FPU is very important for games (ex : transformations, lighning...), multimedia (ex : encode/decode video...) That's why emulation with decent speed on mobile devices is something very hard to achieve.

Another thing... Consoles does have many CPU'S in their hardware : One for sound, one for graphics, one for inputs,... So, 33mhz (PSP, main CPU) is a thing, but it's not the only CPU to emulate in this console...
And a CPU built in a console is only dedicated to one task : games... A CPU in our mobile devices are designed to be "multifunctions" : They have to hang Windows (or any other operating system) kernel, services (phone, leds, touchscreen, gdi...)... It does heat many ressources.

Some links :

http://en.wikipedia.org/wiki/ARM_architecture
http://en.wikipedia.org/wiki/X86
http://en.wikipedia.org/wiki/MIPS_architecture

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Re: Idea: PSP emu?

Postby Wishmaster » Tue Oct 13, 2009 4:49 pm

Actually all Cortex-A* CPU's have very strong FPU unit(NEON) which could easily handle multimedia, input/output and everything else.


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