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Subject: Re: question: pointer alignment on ColdFire and SH7034Re: question: pointer alignment on ColdFire and SH7034
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From: Thom Johansen <thomj_at_pvv.ntnu.no>
Date: Wed, 26 Oct 2005 13:50:20 +0200
Frederic Devernay wrote:
> On the processors we use (ColdFire and SH7034), is the following
> instruction authorized, even if s and d are not aligned?
> ((*(long long *)(d)) = (*(long long *)(s)))
Unaligned accesses will be slower than usual accesses on Coldfire, and outright
crash the SH processors with an illegal address error, so no, not authorized.
Thom
Received on 2005-10-26
Date: Wed, 26 Oct 2005 13:50:20 +0200
Frederic Devernay wrote:
> On the processors we use (ColdFire and SH7034), is the following
> instruction authorized, even if s and d are not aligned?
> ((*(long long *)(d)) = (*(long long *)(s)))
Unaligned accesses will be slower than usual accesses on Coldfire, and outright
crash the SH processors with an illegal address error, so no, not authorized.
Thom
Received on 2005-10-26
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