From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 185D5C433FE for ; Thu, 10 Dec 2020 09:04:14 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 82C7F2343B for ; Thu, 10 Dec 2020 09:04:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 82C7F2343B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:41498 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1knHrw-0004Oi-LM for qemu-devel@archiver.kernel.org; Thu, 10 Dec 2020 04:04:12 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:41410) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1knHp5-0001oL-Ia for qemu-devel@nongnu.org; Thu, 10 Dec 2020 04:01:15 -0500 Received: from indium.canonical.com ([91.189.90.7]:59826) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1knHp2-0000fY-P9 for qemu-devel@nongnu.org; Thu, 10 Dec 2020 04:01:15 -0500 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1knHp1-0004jI-Lh for ; Thu, 10 Dec 2020 09:01:11 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 9B9632E8138 for ; Thu, 10 Dec 2020 09:01:11 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Thu, 10 Dec 2020 08:49:44 -0000 From: Thomas Huth <1900779@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=Fix Released; importance=Undecided; assignee=None; X-Launchpad-Bug-Tags: bytes disassembly mixes X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: dennis-restle jnsnow pmaydell th-huth X-Launchpad-Bug-Reporter: Chaoscode (dennis-restle) X-Launchpad-Bug-Modifier: Thomas Huth (th-huth) References: <160324353545.18570.15111142462284405315.malonedeb@chaenomeles.canonical.com> Message-Id: <160759018433.6033.6061855778160199740.malone@gac.canonical.com> Subject: [Bug 1900779] Re: xp /16i on arm mixes DWords X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="4853cb86c14c5a9e513816c8a61121c639b30835"; Instance="production" X-Launchpad-Hash: b411696842e268e7fb0592ae2e995955650137b7 Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1900779 <1900779@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Released with QEMU v5.2.0. ** Changed in: qemu Status: Fix Committed =3D> Fix Released -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1900779 Title: xp /16i on arm mixes DWords Status in QEMU: Fix Released Bug description: I was working with qemuand wanted to understag ATAG structure. In Monitor mode I used xp /16i 0x100 and I got really confused. with xp /16i 0x100: At address 0x120 the DWords are 0x00000000, 0x00000004, 0x54410009, 0x747= 36574 with xp /16x 0x100: At address 0x120 the DWords are 0x54410001, 0x00000001, 0x00000001, 0x000= 00000 from my Terminal: (qemu) xp /16x 0x100 0000000000000100: 0x00000005 0x54410001 0x00000001 0x00001000 0000000000000110: 0x00000000 0x00000004 0x54410002 0x3c000000 0000000000000120: 0x00000000 0x00000004 0x54410009 0x74736574 0000000000000130: 0x00000000 0x00000000 0x00000000 0x00000000 (qemu) xp /16i 0x100 0x00000100: 00000005 andeq r0, r0, r5 0x00000104: 54410001 strbpl r0, [r1], #-1 0x00000108: 00000001 andeq r0, r0, r1 0x0000010c: 00001000 andeq r1, r0, r0 0x00000110: 00000000 andeq r0, r0, r0 0x00000114: 00000004 andeq r0, r0, r4 0x00000118: 54410002 strbpl r0, [r1], #-2 0x0000011c: 3c000000 .byte 0x00, 0x00, 0x00, 0x3c 0x00000120: 54410001 strbpl r0, [r1], #-1 0x00000124: 00000001 andeq r0, r0, r1 0x00000128: 00001000 andeq r1, r0, r0 0x0000012c: 00000000 andeq r0, r0, r0 0x00000130: 00000004 andeq r0, r0, r4 0x00000134: 54410002 strbpl r0, [r1], #-2 0x00000138: 3c000000 .byte 0x00, 0x00, 0x00, 0x3c 0x0000013c: 00000000 andeq r0, r0, r0 (increasing length only results in more 00000000 andeq r0, r0, r0 Lin= es) Version: 4.2.1Debian 1:4.2-3ubuntu6.6 Commandline: qemu-system-arm -machine raspi2 --nographic -S -s -kernel ./vmlinuz --app= end "test" ./vmlinuz is a x64 linux kernel. I didn't care about architecture because= i just wanted to see ATAG structure. I also tried qemu-system-arm -machine raspi2 --nographic -S -s -kernel ./overview.pdf = --append "test" same result. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1900779/+subscriptions