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> your Arduino would just keep printing bytes until it lucked upon a zero, or overran its buffer so badly that it started trying to read different segments of memory and eventually segfaulted.

I don't think I've ever used an arduino core for something that had an MMU. It should happily keep printing all the way until the end of memory, and either stop there because it's zeros after, or wrap back to the start depending on the board. I have written code to dump out every byte in memory over serial before, just for kicks.



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