Below is my little archive of precompiled binaries of the Playstation Portable (or PSP for short) emulator, PPSSPP. All binaries are compiled for Fedora 19 64bit with Intel i7 CPU optimizations. Your mileage may vary on other Linux distributions but it should work on any newer distro. Make sure you have libSDL installed.
The archive should be updated daily as long as my computer is powered on :)
You can find the build archive Here.