PS One Emulator for PSP 1000

[AngelicDemon]

I have a PSP 1000 and I just want to ask if there is a PS One emulator for PSP and what emulator is it? Thank you.

[belmont]

There is no working emulator except the official one. There are lots of games in the PSN store. You can play back-ups of these games if you have custom firmware.