via http://www.emucr.com/
Jpcsp SVN r2444 is released. JPCSP is the most advanced PlayStation Portable(PSP) emulator, allowing you to play your PSP games on a PC. Even though Jpcsp is written in Java, it can already reach 100% PSP speed on a lot of commercial games... and the emulator performance is constantly increasing. Jpcsp takes full advantage of dual-core processors, matching the PSP dual-core architecture. Even a quad-core can give a small performance improvement by leaving free CPU cores for the Java JIT Compiler and the graphics cache.

Jpcsp SVN changelog:
r2444
Improvement of the software renderer: apply the perspective correction while mapping a texture to a 3D triangle (take the depth into account while mapping). Now the texture is correctly mapped on the 3D cube demo.

http://code.google.com/p/jpcsp/