FPSE on psp...

[siso]

Hi, is possible a porting for psp?

Win32 version requires:
* 486DX/33
* 8 MB Ram
* A Video card and a keyboard (I hope you have them...)
* Microsoft Windows 95/98/NT4/2000

But 166 mhz is indispensable for a decent speed.

[Tinnus]

166? It probably needs HW acceleration to run at that speed.

[craig588]

It just means that it requires a X86 CPU to run. The 486 added protected mode which it probably requires in some way. (I think windows requires it)

It doesn't say anything about it running well. There already is a PSX emulator for the PSP and it runs at just a few FPS, IIRC the compatability is fairly high though.

Much later a good PSX emulator will come out, it's a matter of tapping into the PSPs hardware acceleration functions, that will probably happen at about the same time a extremly compatible PSP emulator comes out so people can watch how retail games work and copy those methods to use the hardware.

[spu]

PSP MIPS R4000 (333 mhz)
PSX MIPS R3000A (33 mhz)

Psp has a MIPS subsequent to the one of psx reason why, you do not think that a virtualization could be done??

My english is no very perfect... I speak spanish...

In spanish: La psp tiene un MIPS R4000 mientras que la psx tiene un MIPS R3000A por lo que lo más probables es que la psp herede las caracteristicas del la CPU de la playstation, por lo cual, ¿no creeis que seria mucho más viable hacer una virtualización que no una emulación? Yo creo que de esta forma se podrian alcanzar juegos de psx a 50-60fps

[craig588]

Once people figure out how to get hardware acceleration working well I'm sure that because the CPUs are so similar it will work fine. I really don't want to learn MIPS ASM though so I can't help much, I'm just familiar with the theory behind it.

The current PSX emulator on the PSP is done entirely though software. I'm not sure if the TYL team is rewriting portions of the core in ASM or if newer versions of the free PS2dev C SDK have begun supporting more hardware functions. I reallly don't know much about the MIPS cpu so even if the SDK is capable now, I'm not.

[siso]

The Media Engine is a second MIPS R4000, right? Can this processor help the CPU?

[craig588]

Yes, once people figure out how to use it.

This isn't like a normal SDK were all of the functions are avalible and documented. The PS2dev crew is reverse engineering it from nothing.

[spu]

This is very complete documentation for PSX, very very interesant for virtualization or emulation of PSX on PSP ^^

www.emulatronia.com/consolas/doctec/dt-psx.htm

[spu]

Virtualization of PSX is 100% posible?

In a review of Megaman Legends (psp) on 1up.com:

The same is true of the PSP version, because, well, it's exactly the same game. Exactly. The graphics haven't been enhanced in any way; the plot (at least four hours in) is unchanged; the character upgrade path is the same; dungeon layouts are identical to the older version of the game. In fact, it's tempting to say that Legends for PSP is simply the original game running on an impressively solid PlayStation emulator -- a possibility given all the more credence thanks to the fact that it features a number of quirks unique to the PlayStation. For instance, the jumpy textures caused by the PS1's lack of z-buffering are there, and the same polygon clipping errors can be seen. Furthermore, saving the game brings up a standard PSP system overlay that causes the game animation beneath to suffer severe slowdown -- a hallmark of emulation.

But what really makes this port look emulated -- or at the very least, extraordinarily lazy -- is the fact that Capcom didn't bother to resize the game's graphics to fit the PSP's widescreen. That's right, you can either play in "stretched" mode or with letterboxing on both sides.

forums.maxconsole.net/showthread.php?t=10935