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The N900 is now 15 years old! (8)
to Nokia N900 by whayong - 15 hrs, 12 mins ago -
Sailfish OS for the Motorola Moto G7 Power (XT1955-5) - (ocean) (4)
to SailfishOS by Maemish - 5 days, 11 hrs ago - more...
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2009-11-21
, 15:48
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Posts: 296 |
Thanked: 111 times |
Joined on Oct 2009
@ Manchester
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#22
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Originally Posted by davedickson
Hehe i may have jumped to conclusions in my thread
Thanks! That does sound promising! Maybe PSP on N900 isn't such a silly quest after all!
Let me know if you find/hear anything else....
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2009-11-21
, 16:11
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Posts: 1,107 |
Thanked: 720 times |
Joined on Mar 2007
@ Germany
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#23
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I talk to the N900 psp emu developer every day. So this thread is funny.
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2009-11-21
, 16:27
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Posts: 488 |
Thanked: 107 times |
Joined on Sep 2009
@ Asgard / Midgard / London
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#24
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Joe Pesci: Funny how?
| The Following User Says Thank You to Thor For This Useful Post: | ||
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2009-11-21
, 20:01
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Posts: 248 |
Thanked: 66 times |
Joined on Oct 2009
@ Birmingham
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#25
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Originally Posted by ArnimS
Funny how?? "PSP Developer" If someone is working on one then it would be good to know??
I talk to the N900 psp emu developer every day. So this thread is funny.
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2009-11-21
, 20:49
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Posts: 1,107 |
Thanked: 720 times |
Joined on Mar 2007
@ Germany
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#26
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Originally Posted by Thor
LOL. i think we will see one sometime 2010 and it will be too slow
Joe Pesci: Funny how?
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2009-11-21
, 21:08
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Posts: 716 |
Thanked: 303 times |
Joined on Sep 2009
@ Sheffield, UK
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#27
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Originally Posted by 406NotAcceptable
The reason Dreamcast is easier is because the N900 GPU is based on the Dreamcast GPU, so there should be less translation necessary - you should be able to run GPU instructions straight on the GPU.
It really depend on how the N900 handles the PSX and the Dreamcast. There's already a Dreamcast emulator for the Pandora in the works, so that should be portable without too much effort. If the N900 can handle the Dreamcast, it should also be able to handle the PSP.
Likewise, if we see a PSX emulator it should then be able to gauge the devices ability to run a PSP emulator, as the PSP sits somewhere in between the PSX and the PS2.
Emulators normally have to do a lot of translations as something even as simple as running an nVidia based console on an ATI based one (Xbox on Xbox 360) is complicated, as the GPUs do not have the same list of effects or achieve them in the same way. That is why Direct X exists on PC, so that graphics cards manufacturers both know what instructions the developers are going to use and can tailer their drivers to fill in any gaps in support. Even then, PC games are designed to only enable the features your graphics card supports, consoles have no such functionality as the developers have the security of knowing that every console their game runs on will be identical hardware wise, or at least have its own built-in backwards compatibility.
Emulation is a lot easier when you design your new console from the start with that in mind. That is why early PS3s could emulate PS2 so well, but when they tried to slowly remove the hardware support ultimately they couldn't do it merely in software. Granted they might pull it off eventually, but it would have cost a lot of time and money, something homebrew developers do not necessarily have.
Originally Posted by davedickson
How does the PS1 being possible make PSP more likely?
Thanks! That does sound promising! Maybe PSP on N900 isn't such a silly quest after all!
Let me know if you find/hear anything else....
The PSP is many times more powerful and complicated than the PS1, which is why the PSP itself can emulate the PS1. Even the Dreamcast was able to emulate the PS1, though it did take a lot of optimisation for each game that was supported.
The PSP has more in common with the PS2 than PS1. Some even argue the PSP is as powerful or more powerful than the PS2, for some things.
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2009-11-21
, 21:12
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Posts: 643 |
Thanked: 628 times |
Joined on Mar 2007
@ Seattle (or thereabouts)
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#28
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In terms of the speed difference required to emulate a different CPU architecture at full speed, I've heard numbers between 6x and 12x, which probably makes sense if the PSP emu needs a 2GHz x86 CPU to run full speed. Also keep in mind that clock-for-clock I think that (even one core of) a Core 2 Duo is faster than our little Cortex A8. Starting a PSP emu now and hoping that it will run closer to playable speed (maybe without ssound?) on a dual-core Cortex-A9 OMAP4 sometime in 2011 or 2012, might be a lot more reasonable. Hopefully they'll (ARM? TI?) get us more internal bandwidth by then...
@davedickson: I definitely think you shoulc do your proposed qemu experiment. Even if it doesn't turn out to be "playable" I think it'll be a lot of fun and you'll learn a lot on the way. If you want advice on where to get started, stop by #maemo with an open mind and some free time.
-John
@davedickson: I definitely think you shoulc do your proposed qemu experiment. Even if it doesn't turn out to be "playable" I think it'll be a lot of fun and you'll learn a lot on the way. If you want advice on where to get started, stop by #maemo with an open mind and some free time.
-John
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2009-11-21
, 21:23
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Posts: 716 |
Thanked: 303 times |
Joined on Sep 2009
@ Sheffield, UK
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#29
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Originally Posted by Johnx
From what I have read around I believe the basic, original version, of the Atom is still about twice as powerful as the N900 CPU. The Cortex A9 has been said that it could possibly get close to the dual-core Atom 330 but by then no doubt an even faster Atom will be out, which still will be considered SLOW in desktop PC terms.
In terms of the speed difference required to emulate a different CPU architecture at full speed, I've heard numbers between 6x and 12x, which probably makes sense if the PSP emu needs a 2GHz x86 CPU to run full speed. Also keep in mind that clock-for-clock I think that (even one core of) a Core 2 Duo is faster than our little Cortex A8. Starting a PSP emu now and hoping that it will run closer to playable speed (maybe without ssound?) on a dual-core Cortex-A9 OMAP4 sometime in 2011 or 2012, might be a lot more reasonable. Hopefully they'll (ARM? TI?) get us more internal bandwidth by then...
@davedickson: I definitely think you shoulc do your proposed qemu experiment. Even if it doesn't turn out to be "playable" I think it'll be a lot of fun and you'll learn a lot on the way. If you want advice on where to get started, stop by #maemo with an open mind and some free time.
-John
I was looking at CPUs recently to upgrade an old PC. The basic Atom CPU is not even as powerful as my mid 2003 Athlon XP 3200+, so you have to be realistic about what the N900 can do especially as there is this horrible rumour that Nokia have said the N900 cannot hit 600Mhz sustained without going up in smoke. (which is mental, nobody should ever release a consumer device which can be physically broken via software, it should have thermal management that shuts it down before that happens)
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2009-11-23
, 08:57
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Posts: 248 |
Thanked: 66 times |
Joined on Oct 2009
@ Birmingham
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#30
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Originally Posted by Alex Atkin UK
I think the point he was trying to make was that PS1 emu worked on 770, so you would have thought that N900 could manage PSP, yes PSP is more advanced but so is N900, see what I mean??
How does the PS1 being possible make PSP more likely?
The PSP is many times more powerful and complicated than the PS1, which is why the PSP itself can emulate the PS1. Even the Dreamcast was able to emulate the PS1, though it did take a lot of optimisation for each game that was supported.
The PSP has more in common with the PS2 than PS1. Some even argue the PSP is as powerful or more powerful than the PS2, for some things.
Let me know if you find/hear anything else....