It's not really possible on the PSP. To have N64 Emulators on the PSP would be way too much trouble, and it wouldn't even run smoothly. N64 emu's probably wont make it to the PSP, maybe until ALL homebrew is done, and ALL emulators done are at full speed. That would give people time to work on it, but I doubt they would get it going at a descent rate. Sorry to say this but N64 wont make it.