Re: [avr-gcc-list] Gcc bug??

[David Gay]

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Brian Cuthie wrote:
> What I then determined is that the "0" register (r1) contained the value 8!
> This, not coincidentally (and looking at the disassembled code) is exactly
> the value that's being incorrectly written into the static state variable.
> Interestingly, turning on any level of optimization seems to fix it, at
> least as observed by the TWI port handler not hanging.
>
> I was wondering if anyone else has seen anything like this, or has any
> advice or suggestions.

Something to consider: the registers are memory mapped, so stray pointer writes 
(in this case, to address 1), can overwrite them...

David Gay
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