Gentoo Archives: gentoo-user

From: Neil Bothwick <neil@××××××××××.uk>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Re: i486
Date: Tue, 23 Nov 2010 21:06:11
Message-Id: 20101123210518.4e0d5d3b@digimed.co.uk
In Reply to: Re: [gentoo-user] Re: i486 by David W Noon
1 On Tue, 23 Nov 2010 18:36:49 +0000, David W Noon wrote:
2
3 > >CFLAGS="-O2 -march=geode -pipe -fomit-frame-pointer"
4 > >CXXFLAGS="${CFLAGS}"
5 > >CHOST="i486-pc-linux-gnu"
6 >
7 > Try using i686 instead.
8 >
9 > >flags : fpu de pse tsc msr cx8 pge cmov mmx mmxext 3dnowext
10 >
11 > You have CMOV and MMX, as well as 3DNow! instructions -- with
12 > extensions. That makes it an Athlon "lite" processor, or a K6-3 with
13 > CMOV instructions. These are enough to make it compatible with the
14 > Pentium Pro (i686) architecture, and a bit more besides.
15
16 Apparently it's not quite a full i686. The research I did at the time
17 indicated that using anything higher than i486 was asking for problems.
18
19
20 --
21 Neil Bothwick
22
23 An expert is nothing more than an ordinary person away from home.

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