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Re: Bug#198158: architecture i386 isn't i386 anymore



Sebastian Kapfer wrote:
I'd drop the sub-pentiums (i.e. 386 and 486) entirely. Not that my vote
would count...


I once read somewhere that you should _never_ compile in 486 optimizations for use in processors other than the 486. Apparently
since 486 optimized code is padded a lot with NOPs.

Apparently you are much better off on a Pentium or Athlon with
i386 optimized code than i486 optimized one.


Hence if we are going to migrate from i386, we should not
go to CPU like i486 and just move to a Pentium Classic
code (i586).

- Adam

PS. ASAIK, i486 is very similar to i386 if you compare them to a i585
processor. Not too many new instructions there.



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