Do you think a PS1/PSX emulator would be possible?

I know, another one of these threads. But I think this one makes sense. Even smea said it:
I think it would be awesome to play nostalgic titles like Spyro (my favorite PS1 franchise), Crash Bandicoot and Rayman etc on the 3DS!

Do you think it's possible? Are you intrested in coding it? Or neither? Share it in a reply.