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Date:      Fri, 31 Aug 2007 12:42:44 -0700
From:      "David O'Brien" <obrien@freebsd.org>
To:        =?unknown-8bit?Q?Bj=F6rn_K=F6nig?= <bkoenig@alpha-tierchen.de>
Cc:        freebsd-current@freebsd.org
Subject:   Re: Adding k9 and k10 to bsd.cpu.mk
Message-ID:  <20070831194244.GA4565@dragon.NUXI.org>
In-Reply-To: <53082.192.168.1.2.1188586737.squirrel@webmail.alpha-tierchen.de>
References:  <-3502020561049594852@unknownmsgid> <a31046fc0708291203s3e71d603ka7b34cc320a8166a@mail.gmail.com> <20070829191310.GA50909@freebsd.org> <50152.2001:6f8:101e:0:20e:cff:fe6d:6adb.1188416964.squirrel@webmail.alpha-tierchen.de> <20070831142032.GD79097@dragon.NUXI.org> <53082.192.168.1.2.1188586737.squirrel@webmail.alpha-tierchen.de>

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On Fri, Aug 31, 2007 at 08:58:57PM +0200, Bjrn Knig wrote:
> Björn König wrote:
> >> Intel's first Pentium 4 with SSE3 is called "prescott". We could use
> >> "venice" analogously to represent SSE3-capable Athlon64 CPUs.
> 
> David O'Brien wrote:
> > No!  NO!  AMD core names does not mean the same as Intel ones.
> > Look folks, there is a clear way for this - the CPUID family.
> 
> Pentium 4 processors before Prescott belong to family 15. Prescott and
> recent Pentium 4 processors still use 15 as family ID. If I understand you
> correctly then there should be no distinction between these processors
> because they have the same family ID, but there is one in bsd.cpu.mk
> because of SSE3.

Not quite.  CPUID Family is vendor-specific.  The Family value for Intel
cannot be compared with the meaning of Family for AMD (or VIA).

AMD bumps the CPUID Family value for each new major architecture
generation.  I have no idea what's the meaning of "Family" by Intel.

-- 
-- David  (obrien@FreeBSD.org)
Q: Because it reverses the logical flow of conversation.
A: Why is top-posting (putting a reply at the top of the message) frowned upon?
Let's not play "Jeopardy-style quoting"



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