Date: Fri, 6 Sep 2002 21:28:28 -0400 (EDT) From: Kenneth Culver <culverk@yumyumyum.org> To: Kris Kennaway <kris@obsecurity.org> Cc: Maxime Henrion <mux@FreeBSD.ORG>, <cvs-committers@FreeBSD.ORG>, <cvs-all@FreeBSD.ORG>, <current@FreeBSD.ORG> Subject: Re: HEADS UP: SSE instructions (Re: cvs commit: src/share/mk bsd.cpu.mk) Message-ID: <20020906212438.J46717-100000@alpha.yumyumyum.org> In-Reply-To: <20020907012324.GA84837@xor.obsecurity.org>
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> Note that you'll need to have 'options CPU_ENABLE_SSE' in your kernel > configuration file if you have a SSE-capable CPU, otherwise you'll get > SIGILL from certain applications (e.g. ncurses) What if you don't want to do this though? Athlon XP processors support SSE instructions, but not at the same time as 3dnow instructions. The processor has to switch modes or something like that. What if a user wants to actually use the 3dnow instructions? Does this mean that on an athlon XP which supports SSE instructions, if you don't want to enable them you'll catch SIGILL and die when using those "certain apps?" Just wondering. Ken To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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