DaedalusX64 is the best Nintendo 64 Emulator available exclusively for the PSP. To eliminate some frequently asked questions: No, the Emulator is not perfect, so any graphical bugs, or speed issues are considered normal. Yes, the audio does not always play full speed, often crackles, and can cause the Emulator to crash. The latest compiled rev of DaedalusX64 can be found below, and I will try my best to upload the latest rev when I'm aware of it's commit.
What's changed in this revision:
Revision 563
[+] Rewrote resampling for ABI1 and ABI2 for a small speedup
[~] Couple of small audio related fixes
[~] Made the FPS display slightly smaller
Note: EMU sometimes hangs if a game is started with Async mode (since 562)
Revision 562
[~]Updated Compat List Titles to reflect roms.ini change. (Thanks Sterist)
Revision 561
[+] Started WIP to update audio plugin [several improvements done] (Corn and Salvy)
[~] ProcessAList deprecated( we'll just load the audio task directly)