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Re: [PATCH] Workaround for Janus 2CC core errata
- From: Daniel Gutson <dgutson at codesourcery dot com>
- To: Richard Earnshaw <Richard dot Earnshaw at arm dot com>, Mark Mitchell <mark at codesourcery dot com>, gcc-patches at gcc dot gnu dot org
- Date: Fri, 21 Aug 2009 14:29:11 -0300
- Subject: Re: [PATCH] Workaround for Janus 2CC core errata
- References: <4A4B0186.6070809@codesourcery.com> <4A7B5A66.1050101@codesourcery.com> <4A8AD67F.2060206@codesourcery.com> <1250845748.5695.31.camel@e200601-lin.cambridge.arm.com> <4A8ED910.6020204@codesourcery.com>
[forgot reply-to-all]
Hi Richard,
Richard Earnshaw wrote:
> On Tue, 2009-08-18 at 13:27 -0300, Daniel Gutson wrote:
>> Hi,
>> sorry to insist, anybody could take a look to this?
>>
>> Please commit it for me if approved since I don't have write access.
>>
>
> Sorry, I've never heard of the Janus 2CC core. WHat is it, and what's
> the problem with it?
>
> R.
Janus 2CC is an Avalent core. It has a timing design side-effect in the
handling of
some shift addressing modes; NOPs are needed to work around these problems.
Daniel.
--
Daniel Gutson
CodeSourcery
www.codesourcery.com