Basilisk II is an Open Source 68k Macintosh emulator.
Release notes:
Okay, test 15. This fixes a few bugs – one in the imap/floppy/cdrom menu, I switched back to unix gettimeofday timing (seems a little more consistent), it should handle the caps lock key correctly, and should load IRDA.PRX on 3.80+. Would someone with a Phat and 3.80+ please check that?
I also fixed a minor quibble in the default input mapping – CROSS is now enter instead of keypad enter. I now allow for comments in the input maps. Look at the included default and Maelstrom maps as examples. Here’s a tip for testing your input maps/keyboards – under the Apple Menu is a little jewel of an app called Key Caps… use it!
http://forums.ps2dev.org/viewtopic.php?t=3741&postdays=0&postorder=asc&start=450