On 07/06/12 23:14, Andreas Schwab wrote:
Greg Ungerer<gerg@xxxxxxxxxxxx> writes:
This strikes me as odd. Maybe this has been wrong all along. I need
to check further but in a little testing I did today I think it may
well be that all ColdFire support unaligned reads and writes.
The CFPRM doesn't indicate otherwise (the address error exception is
only documented to be raised for a word index addressing mode).
Yeah, I can't find anything that says otherwise in any of the CPU
specific data sheets either. I suspect the internals of unaligned.h
have just been carried from the original non-mmu 68k support to
ColdFire.
Testing on the ColdFires I have at hand here shows unaligned reads
and writes working on all. And that includes testing with a modified
unaligned.h that allows unaligned accesses.
Geert, I'll put a patch together that changes this over. I'll make
that on top of your recent patch series.
Regards
Greg
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Greg Ungerer -- Principal Engineer EMAIL: gerg@xxxxxxxxxxxx
SnapGear Group, McAfee PHONE: +61 7 3435 2888
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