Ahhhhhh! OK, I get it! Thanks for reply!
That's kind of the major difference between AmigaOS3.9 and AmigaOS4.x.
That fact that one is native 680x0 whit PowerPC extentions WarpUP.
And the other AmigaOS4.x is native PowerPC, whit just in time compiler (JIT) for 680x0 hunk binary code.
You can install AmigaOS3.9 on MacMini but only if it runs in emulator like EUAE.
