DaedalusX64 is the only working Nintendo 64 emulator for the PSP and PSVita and it can emulate some titles like Super Mario 64 and Mario Kart 64 quite well. However, it’s still quite far from being a perfect emulator but thankfully, some people like z2442, TheMrIron2 and wally4000 seem to have taken an interest in making it better.
Through their efforts, many updated builds have been released and the most recent one is 1.1.6, which was released a few days ago and it brings along:
Improvements to the job manager which improved the performance of the audio emulation routine and made it more stable
An update to the toolchain being used to compile the emulator which has unexpectedly brought about performance improvements
Faster memory copying routine
Work is also being done on a PC (Linux) port of Daedalus which may make it easier for debugging and improving the performance of the PSP version
In order to get this updated version of Daedalus, click on this link and grab the ZIP file linked in it. If you’re using a PSVita, this must be run via Adrenaline as there isn’t a native port of Daedalus yet.