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From: Duncan Barclay <Duncan.Barclay@pa-consulting.com>
To: freebsd-hackers <freebsd-hackers@freebsd.org>
Subject: CYRIX Code in locore.s
Date: Tue, 01 Oct 96 16:24:00 PDT
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Hi

I just got a DX2/66 to upgrade my DX33 with and had a
wander around locore.s because what I thought
was an SGS-Thompson chip got identified as
a Cyrix chip. I have now discovered that they are the
same so thats okay.

What I dod come across was a load of
#ifdef CYRIX_CACHE_WORKING
code which intreged me. I think I have worked out
what it does (ie. make all memory cacheable)
but it doesnt want to compile because a couple
of Cyrix specific control register bits
are not defined (CR0_NW and CR_C?).

Can anyone confirm if this code is needed and give me
the definitions for CR0_??.

Thanks

Duncan