From owner-cvs-all Fri Sep 10 8:52:22 1999 Delivered-To: cvs-all@freebsd.org Received: from freefall.freebsd.org (freefall.FreeBSD.ORG [204.216.27.21]) by hub.freebsd.org (Postfix) with ESMTP id 7678D14EA1; Fri, 10 Sep 1999 08:52:19 -0700 (PDT) (envelope-from peter@FreeBSD.org) Received: (from peter@localhost) by freefall.freebsd.org (8.9.3/8.9.2) id IAA73287; Fri, 10 Sep 1999 08:51:44 -0700 (PDT) (envelope-from peter@FreeBSD.org) Message-Id: <199909101551.IAA73287@freefall.freebsd.org> From: Peter Wemm Date: Fri, 10 Sep 1999 08:51:44 -0700 (PDT) To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/include specialreg.h Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk peter 1999/09/10 08:51:44 PDT Modified files: sys/i386/include specialreg.h Log: Add the CR4 values for P3 SIMD enabling support. FXSR tells the cpu that the OS does FXSAVE/FXRESTOR instructions (fast FPU save/restore) during context switching and also enables SIMD since this enables saving the extra CPU context that isn't saved with normal FPU regs. The other enables the SIMD instructions to use exception 16 (FPU) error reporting. Note, this doesn't turn on SIMD, just defines the bits. Revision Changes Path 1.19 +3 -1 src/sys/i386/include/specialreg.h To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message