Anyone know a emulator to use on playstation?

[MathUser]

I wanted to see wht it's like to emulate NES and other systems on my psx. I got a spch-9001 model. I need a swap method also. Thanks.

[LiquidManZero]

Well, you're in luck. I can point you at both things...

The best NES emulator for playstation: http://imbnes.gamebase.ca/

And, SephiRon's swap method:

http://www.thegshi.org/faqs/CDXBoot.html
And, the image that is for some reason missing off that:
http://www.thegshi.org/images/CDXBoot.jpg

Or,if you somehow have an Xploder CD9000 or Code Breaker for playstation... Those will work much easier. All you do with one of those is jam the door sensor, load up the disc, go into the cd player, hit "stop", swap in the new disc, and then boot it with or without codes.