@Samuar
Old 68K Macs and Ataris WILL NOT run AmigaOS, don't bother, don't try. The classic amigas use a range of unique chips that don't reside in either of those machines for example the copper chip, Denise, Agnus, Paula, Gary, Buster, the Kickstart. Running AmigaOS on a mac is simply a matter of porting it (same for MorphOS), but then we go the route of BeOS.