From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 28 Jan 2001 05:19:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 28 Jan 2001 05:19:44 -0500 Received: from neon-gw.transmeta.com ([209.10.217.66]:58119 "EHLO neon-gw.transmeta.com") by vger.kernel.org with ESMTP id ; Sun, 28 Jan 2001 05:19:40 -0500 Message-ID: <3A73F1EB.B6F69A93@transmeta.com> Date: Sun, 28 Jan 2001 02:18:19 -0800 From: "H. Peter Anvin" Organization: Transmeta Corporation X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.4.0 i686) X-Accept-Language: en, sv, no, da, es, fr, ja MIME-Version: 1.0 To: Rogier Wolff CC: "H. Peter Anvin" , linux-kernel@vger.kernel.org Subject: Re: Linux Post codes during runtime, possibly OT In-Reply-To: <200101281012.LAA04278@cave.bitwizard.nl> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Rogier Wolff wrote: > > Ok. I've thought about it some more, but I don't care enough about > this issue to do the painstaking legwork: I don't have one of those > POST-code indicators on port 0x80. > > I've made the "pause" in outb_p just a few (*) ns slower, because it > now loads a variable before outputting the value to port 0x80. As the > whole idea about this is "pausing", making it a bit slower shouldn't > matter too much. I've tested it: It compiles, it boots. > > I'm not too familar with the syntax of the "asm" statement. So I may > illegally be modifying the AX register. I don't care enough about this > to figure it out right now. > It is; you'd have to specify "eax" as a clobber value, and that is undesirable. And you're still overwriting the POST value written by the BIOS. -hpa -- at work, in private! "Unix gives you enough rope to shoot yourself in the foot." http://www.zytor.com/~hpa/puzzle.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/