>
> Actually that is rather odd. You shouldn't be getting bus errors on an
> Intel platform as it can do non-aligned accesses.
Umm.. Only if the Unaligned bit is set in the flags register. Any OS
designed with half a clue or an application writer with half a clue and
some knowledge of CPU usage will turn that bit off.
Apple turn it off by default I do believe (god bless them). The CPU
itself boots with it off ;-)
Unaligned loads are handled by microcode BTW, they actually expand to
two (independent) loads, two shifts and a register copy. They are one
of the reasons intel CPUs need stupid guarantees on TLB entries (the
last _NINE_ entries are never flushed).
> It will be interesting to find out what is going wrong.
/me notes it's probably unaligned access after a string.
nash
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