Lpc2000

At 07:21 PM 10/5/04 +0000, you wrote:
>Is there any way to have the LPC2000 generate an exception on
>unaligned data accesses? We are using ARM-GCC and it seems neither the
>compiler nor the processor warn us of unaligned data accesses, even
>though they are illegal.

The short answer is no.

But it raises the question.  What kind of code are you writing where this 
is more than a very occasional issue?  The compiler shouldn't be generating 
unaligned access for normal code unless there is a bug in it.

The only case I know of where it would show up involves pointer punning 
which is inherently risky regardless of architecture.

There is also the case of a few registers (AFAIR) that require word access.

Robert

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