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Re: checking in.
- From: Jonathan Larmour <jlarmour at redhat dot com>
- To: Nick Garnett <nickg at redhat dot com>
- Cc: Peter Petrakis <voodoo at alphadriven dot org>,ecos-discuss at sources dot redhat dot com
- Date: Wed, 01 May 2002 16:17:50 +0100
- Subject: Re: [ECOS] checking in.
- Organization: Red Hat UK Ltd.
- References: <ODEEIIAMNNHHFAMGOBAPEEPLCBAA.voodoo@alphadriven.org> <y07d6wgcijn.fsf@balti.cambridge.redhat.com>
Nick Garnett wrote:
>
> "Peter Petrakis" <voodoo@alphadriven.org> writes:
>
> > Hello everyone,
> >
> > Curious, Has anyone seen how eCos fairs on a 64 bit arch? Are there any caveats
> > I should know about concerning a 64 bit port if it isnt already clean? Thanks.
> >
>
> In theory eCos is designed to be portable to 64 bit machines, you just
> need to supply a suitable set of definitions in the basetype.h
> file. In practice we have never needed to do this - any 64 bit
> platforms we currently support (mostly MIPS) are run in 32 bit mode.
>
> The main areas where the 32 vs. 64 bit dichotomy will bite is in
> device drivers where the wrong size memory accesses may get made.
I guess libm might have difficulties too.
Jifl
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