Date: Tue, 15 Jan 2002 18:22:19 -0800 (PST) From: Peter Wemm <peter@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 identcpu.c Message-ID: <200201160222.g0G2MJv54624@freefall.freebsd.org>
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peter 2002/01/15 18:22:19 PST
Modified files:
sys/i386/i386 identcpu.c
Log:
Change <b28> to HTT (Hyperthreading technology). If this flag is set then
cpuid with %eax=1 will return a logical cpu count in bits 16-23 of %ebx.
Bit 29 is actually 'TM' according to AP-485. This signifies the presence
of the thermal control circuit (which I believe can slow the clock down
to reduce core temperature).
Revision Changes Path
1.97 +3 -3 src/sys/i386/i386/identcpu.c
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