Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 22 Nov 2001 07:38:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 22 Nov 2001 07:38:41 -0500 Received: from carlsberg.amagerkollegiet.dk ([194.182.238.3]:11529 "HELO carlsberg.amagerkollegiet.dk") by vger.kernel.org with SMTP id ; Thu, 22 Nov 2001 07:38:38 -0500 Date: Thu, 22 Nov 2001 13:38:37 +0100 (CET) From: =?iso-8859-1?Q?Rasmus_B=F8g_Hansen?= To: "Maciej W. Rozycki" cc: Pavel Machek , kernel list Subject: Re: Disabling FPU, MMX, SSE units? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=iso-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 22 Nov 2001, Maciej W. Rozycki wrote: > On Wed, 21 Nov 2001, Pavel Machek wrote: > > > Is there way not to let linux use FPU, MMX, SSE and similar fancy > > units? I have athlon processor, but would like to turn FPU (and > > similar fancy stuff) off... > > You may use "no387" to disable FPU and MMX (they are controlled by a > single bit in cr0). No idea about SSE. Running a kernel optimized for 386 should leave out MMX, SSE and similar fancy instrucion sets IIRC. Rasmus -- -- [ Rasmus 'M?ffe' B?g Hansen ] --------------------------------------- DISCLAIMER: Microsoft, Windows, Windows 98, Bugs, Lacking features, IRQ conflicts, System crashes, Non-functional multitasking, the Y2K problem and the Blue Screen of Death are registered trademarks of Microsoft, Corp., Redmond, USA. --------------------------------- [ moffe at amagerkollegiet dot dk ] -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/