Replies

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  Joe Groffjoe

  Oct 14, 2026, 5:20 PM

  @aparrish if you have a scope or logic analyzer, one smoke test thing you can do with 68K processors, since `0000` is a nop, you could try tying the data bus lines to ground and watching the address lines, you should see the address bus count binary upward as it executes an endless series of nops

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  Techokamitechokami@woof.tech

  Oct 14, 2026, 5:48 PM

  @joe @aparrish seconding this, it's pretty simple to breadboard as well. If you have some LEDs handy you can use them to monitor the address bus, and if you see it counting up in binary, you should be good

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  Joe Groffjoe

  Oct 14, 2026, 5:51 PM

  @techokami @aparrish yeah that's a good point, you should be able to eyeball the higher bits of the address bus without needing a scope!

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