Gentoo Archives: gentoo-user

From: David W Noon <dwnoon@××××××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Re: i486
Date: Tue, 23 Nov 2010 18:37:25
Message-Id: 20101123183649.53cfb28e@karnak.local
1 On Tue, 23 Nov 2010 18:10:02 +0100, Neil Bothwick wrote about Re:
2 [gentoo-user] Re: i486:
3
4 >On Tue, 23 Nov 2010 16:09:59 +0000 (UTC), James wrote:
5 >
6 >> (I forgot about the geode board.) The Geode is
7 >> one I'm not too sure about.
8 >
9 >My Viglen MPC-L, which I think is a Geode LX, uses
10 >
11 >CFLAGS="-O2 -march=geode -pipe -fomit-frame-pointer"
12 >CXXFLAGS="${CFLAGS}"
13 >CHOST="i486-pc-linux-gnu"
14
15 Try using i686 instead.
16
17 >flags : fpu de pse tsc msr cx8 pge cmov mmx mmxext 3dnowext
18
19 You have CMOV and MMX, as well as 3DNow! instructions -- with
20 extensions. That makes it an Athlon "lite" processor, or a K6-3 with
21 CMOV instructions. These are enough to make it compatible with the
22 Pentium Pro (i686) architecture, and a bit more besides.
23
24 Here are my flags from the box on which I am composing this message, a
25 dyadic Athlon MP (Barton core) system:
26
27 flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
28 mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow
29
30 [Both CPUs reported the same CPUID flags.]
31
32 I guess the Geode is quite "lite" compared to a late-model Athlon.
33
34 To the O.P.: your CHOST should be 'i586-pc-linux-gnu' to support all
35 the processors you have listed, and -march=i586 will allow you to
36 compile once for all your processors.
37 --
38 Regards,
39
40 Dave [RLU #314465]
41 *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
42 dwnoon@××××××××.com (David W Noon)
43 *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*

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Replies

Subject Author
[gentoo-user] Re: i486 James <wireless@×××××××××××.com>
Re: [gentoo-user] Re: i486 Neil Bothwick <neil@××××××××××.uk>