This is why a Saturn emulator was thought to be impossible for a long time. I just looked around and there seem to be some Saturn emulators around, but I did not test them and do not know how good they work - does anybody know? :-)
There is only one truly good emulator and that is SSF. The others may only emulate a percentage of some of the processors accurately.
SSF is by an unknown Japanese author that some believe may have worked at Sega on the Saturn.