A bug in the ROM for the Macintosh II was recently discovered that causes a crash when booting in 32-bit mode. Doug Brown discovered and documented the bug while playing with the MAME debugger. Why did it never show up before? It seems a quirk in Motorola’s 68030 CPU inadvertently fixes it when executing an illegal instruction that shou ... ⌘ Read more
A bug in the ROM for the Macintosh II was recently discovered that causes a crash when booting in 32-bit mode. Doug Brown discovered and documented the bug while playing with the MAME debugger. Why did it never show up before? It seems a quirk in Motorola’s 68030 CPU inadvertently fixes it when executing an illegal instruction that shou ... ⌘ Read more