PS1 Emulator with Rewind?

Is there a PS1 emulator that has the rewind feature?

I think you can rewind save state up to 600 frames in Mednafen :shrug:
I never use save states so I'm only stating what I have read, it isn't personal experience.

Actually, you can push the rewind a lot more. I did test up to 30 minutes but you need 7 or 8gb of ram with my settings.
Here is a copy paste of my psx.cfg with Mednafen:
; << Various Config >>

psx.input.port1 dualshock
psx.input.port1.dualshock.axis_scale 1.20
autosave 0
cd.image_memcache 0
cheats 0
srwautoenable 1
srwframes 99999
ffspeed 12
sfspeed 0.75
input.autofirefreq 3
input.joystick.axis_threshold 75

How do you do this on Mednafen?

According to Mednafen hotkeys, the tilde key fast forwards. That's usually the key to the left of the 1 key.

https://defkey.com/mednafen-1-29-shortcuts

Found it on Duckstation.