PS1 Emulator for Mac Yosemite?

you could try to pirate parallels or any other windows program to run a normal emulator on. Or you could throw you apple product out the window of a moving vehicle and go get a real computer....SICK BURN OH SNAP APPLE SUCKS NOOOOOO FLAMING TIME MAN...but fo real parallels is beast.

That might be a bad idea, most macs don't have as much processing power as the PS1 did. If you do decide to move forward with it though, I would recommend waiting a few more months until FF9 is ported to Steam. They've already ported 7 and 8 over, so it's only a matter of time.

Here. I'm pretty sure pcsx is the one you want.