To copy the same functions of a particular system into another system for similar action is the objective of emulator, which is a program in software or in firmware form. And the result is the programe will perform same action designed for another system.

Generally 2 types of emulators.

1- SOFTWARE EMULATORS - Which are installed in system and make it ready to work on a different software program originally which was installed. which futher result into accepting the game software .

2- HARDWARE EMULATORS - This type of emulators comes in form of a hardware device including fimware which give instructions to the system that what has to be done when game software are loaded.

There are emulators for PSP that are presently available which is compatable for playing n64 games.

To Install an N64 emulator to your PSP is not an easy job also but taking precautions it is very easy like to choose a good website of N64 from where a good quality emulator can be downloaded and do not run for cheap or free emulator.

Download the emulator from a legal website into your system hard disk. Make a folder in directory to save the emulator. Then connect your system with PSP with or via USB port. copy the emulator file from hard disk and paste it on the root directory.