I tried it and it was beyond my expection! Even CPS2 games could run at full speed! Though only one game (Super Puzzle Fighter II Turbo) could run, others CPS2 games got code dump screen after ROM was loaded. I think they are just too big for Gamecube RAM. I alse tried Nestopia core and it ran super mario 3 perfectly.
FBA core is too big and swiss won't let you boot it. If you could seperate CPS1 drivers out and compile it then we could get a perfect CPS1 emu for Gamecube.
FBA Neo Geo core also works as good as CPS2 core. More small sized games work, but if you want to change one game from another, you have to reset Gamecube, or you will only get black screen after another ROM is loaded. Maybe this bug is related to unclean RAM.
Boot.dol doesn't work and after loaded it with Swiss, only black screen shows.
After all, it shows brilliant prospects to Gamecube fans.
Thank you for your hard work