[Zlib-devel] patch-in-progress: vectorized adler32 calculation
Stefan Fuhrmann
stefanfuhrmann at alice-dsl.de
Thu Apr 15 16:53:19 EDT 2010
Gilles Vollant wrote:
> " I'm currently not decided whether to support MMX at all. It would only be
> used on processors older than 5 years, would get little test coverage and
> yields only a modest performance improvement."
>
> I suggest you support even older processor (without MMX), without
> performance consideration, just to not hang
>
Today's code will always be there as a fallback
since we have to support non-x86/x64 CPUs
as well.For x86 there will be a #define for pre-
486 CPUs since they don't support CPUID.
-- Stefan^2.
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