Uploaded February 2022 | Updated September 2026, 2 weeks ago

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In this video I take a look at why disabling the instruction cache on the 68020 processor in the Commodore Amiga A1200 might allow a game to boot that otherwise wouldn't (thanks to Bam1200 for the suggestion during a recent live stream).

Motorola 68020 Document Link: nxp.com/docs/en/data-sheet/MC68020UM.pdf

Timestamps:
0:00 Intro
0:23 Booting Toki (Cache On)
1:17 Booting Toki (Cache Off)
3:06 The cache makes it incompatible?
4:17 Booting Toki WinUAE (Cache On)
5:00 Booting Toki WinUAE (Cache Off)
5:45 Booting Toki WinUAE (Cache On / Turbo Floppy)
7:19 60EC020 CPU Docs
9:10 Conclusion