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Date: Sun, 29 Mar 2009 09:55:50 +0100
Message-ID: <416096c60903290155g34878e17gf3311de983a659be@mail.gmail.com>
Subject: Re: gcc4: missing atomic builtins?
From: Andy Koppe <andy DOT koppe AT gmail DOT com>
To: cygwin AT cygwin DOT com
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> =A0Well, I guess the question is, what's the minimum level of CPU we want=
 to
> support, and I can configure the next version --with-arch that level, and=
 as
> long as it's >=3D486 we'll be ok. =A0I think the question is mainly "686,=
 or is
> there any reason to have 586 as the minimum supported CPU"?

Windows 2000 and XP only require 586. Can't imagine many people using
them on a Pentium machine though, and the 686 CMOV instruction would
be nice to have. Also, should -with-tune be set to something recent?

Andy

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