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68K Amiga Emulation on PowerPC Amiga and AmigaOS 4
[[WinUAE]] is capable of emulating PowerPC acceleration board, so it could also run AmigaOS 4.x if a compatible PowerPC acceleration board such as [http://8bitplus.co.uk/articles/amiga-blizzard-ppc/ Blizzard PPC] has been properly configured. Extra ROM files are required in order to emulate these acceleration boards.
==68K Amiga Emulation on PowerPC Amiga and AmigaOS 4==
AmigaOS 4.x comes with 2 68K Amiga emulators: BlackBox and Petunia, and they will automatically start when trying to run old 68K-based Amiga programs.
BlackBox is an interpretive emulator, thus the emulation speed is mediocre but provides lower input latency and better compatibility; Petunia uses dynamic recompilation in order to speed up emulation but consumes more memory and with less compatibility.
Petunia could be disabled entirely on boot in order to save memory, or disabled only for certain programs that are not compatible with it. Check [https://wiki.amigaos.net/wiki/UserDoc:How_AmigaOS_Works#Motorola_680x0_Emulators AmigaOS 4 Documentation] for more information.
AmigaOS 4.x never make use of real 68K hardware, even when running on an actual 68K-based Commodore Amiga with PowerPC acceleration board.
On emulated PowerPC-based Amiga, both emulators run quite slow as it's basically running an emulator inside an emulator, causing great performance loss.
==External Links==
