Doug Brown:
This is the story of how Apple made a mistake in the ROM of the Macintosh Classic II that probably should have prevented it from booting, but instead, miraculously, its Motorola MC68030 CPU accidentally prevented a crash and saved the day by executing an undefined instruction.
Incredible that we’re still discovering things about these machines some 30 years later. Doug dives deep to work out why MAME was unable to emulate the Macintosh Classic II.