Previously Posted on this issue -
“Definitely a “Work in Progress”, from what I have seen it’s rendering rate is pretty poor thus far Link Here - http://www.youtube.com/watch?v=W3-TxAscWV8
. I use JPCSP (Which is probably the best existing solution) for testing new Custom PSP Firmware/Emulators on my PC (Quad Core 3GHz CPU with a GeForce 9600 GT Grafix Card, 4GB of RAM and a dedicated Sound Card), but even then it’s performance/stability is imperfect. As a relatively new console, Sony have been quite adept/ fierce at preventing Hacking/Emulation with constant Firmware Updates, Hardware Changes and modifications (Even differing Mother Boards in the same Hardware Issue (i.e. PSP 1000/2000/3000). Also, keep in mind the raw performance of the host hardware (In this case the RPi) can be insignificant with regards to the System being Emulated. I have often cited the Atari VCS/2600 by example, although meagre by today’s standards (CPU: 6507, 1MHz, GPU: TIA) takes quite a powerful machine to Emulate it (Mainly because of the intricacies of the TIA). This is the case with many early Consoles (Because of their judicious use of Custom Silicon to keep Hardware costs down) and as such, documentation is limited for these “Custom Chips" (Making Emulation more problematic).Note on the PPSSPP host site it states Gamecube and PS2 ports “Not Possible” (Although I would assume mostly due to RAM Issues). The PSP’s computational power is in actuality closer to PS2 than PS1 (That’s why accurate Playstation 1 Emulation is easily achieved by the PSP), this being the case, I would probably discount any ideas of acceptable PSP Emulators on the RPi (But, never say never!)”
One Last thing, with reguards to RPi it says "Done?" on the site and there is no mention in the Source Code on Github of a Pi version. The Linux fork uses SDL (So no GPU assistance) which is never going to be fast enough!