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Re: ARM halfword bugs?

2006-03-29 by Jayasooriah

Hi Peter,

Your problem is interesting.

I lived through a few halfword bugs similar to yours and the source in all 
of these cases turned out to be either software or hardware (interconnect) 
but, not on-chip as you suspect.

I am assuming you have checked out that binary coding is okay and so 
on.  It does not look like this is your problem from the symptoms you 
describe -- one in ten characters being trashed.

My bet is that your problem going away when you replace the instructions is 
a side effect of your change rather than the cause.  I do not know enough 
about your project and thus have no idea what is involved in tracking this 
down to its source, but I think it is doable.

I would be interested in tracking it down if you are.  If not now, at least 
save the "problem" snapshot so that you can revisit it later.

Jaya

At 20:52 29/03/2006, you wrote:
>Message: 25
>    Date: Wed, 29 Mar 2006 19:44:38 +1000
>    From: Peter Jakacki <peterjak@...>
>Subject: Re: Re: ARM halfword bugs?
...
>I have been having a sneaking suspicion that there is a bug elsewhere
>(silicon?) when performing halfword accesses in ARM mode, that's what
>the original post was about, not any difficulty with assembler.

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