@Hyperspeed
As someone already pointed out, it is UAE that allows us to run most old Amiga games on OS4. Without UAE we couldn't. And UAE wouldn't exist on OS4 unless it had existed for other platforms since a long time ago.
As such OS4 emulates only the 68k CPU, which is fine for new programs and will run them nice and fast, but most games simpl y won't work. It does not emulate custom chips at all.
