(unknown charset) Re: Adding k9 and k10 to bsd.cpu.mk

From: (unknown charset) David O'Brien <obrien_at_freebsd.org>
Date: Fri, 31 Aug 2007 12:42:44 -0700
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_at_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"
Received on Fri Aug 31 2007 - 17:43:15 UTC

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