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This was actually working anyways, because NULL pointers don't trap, and the pointed-to char is currently 0x98, not a digit. But I prefer to fix it before we do one of the following: - move to a new cpu that traps on null - use RAM at a different address than zeero - use "mvi r0, 0" instead of "xor r0,r0,r0" (would parse as 4). Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
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