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,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,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 DAAABC4320A for ; Sun, 25 Jul 2021 07:44:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C070A60F13 for ; Sun, 25 Jul 2021 07:44:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230240AbhGYHD7 (ORCPT ); Sun, 25 Jul 2021 03:03:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43588 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230272AbhGYHDs (ORCPT ); Sun, 25 Jul 2021 03:03:48 -0400 Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D570C061757 for ; Sun, 25 Jul 2021 00:44:18 -0700 (PDT) Received: by mail-pj1-x1031.google.com with SMTP id ds11-20020a17090b08cbb0290172f971883bso15213974pjb.1 for ; Sun, 25 Jul 2021 00:44:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:cc:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding; bh=+1CbdclIXuS1P33C/qOefRO4xRhZbvNeuMXF7mLBa/s=; b=aDPvLHd+7NX40ZNQoGa9jAavZjPCXEHcyA0+ZqYOnaoHL7F9A2v23PivByt1lM9TGw /sYZQYl1JbQ8W9iV87dr6PT5hHAhgtgTjpyx1SnCmYdZ6FtAdno5HHkSVAcKArF+tU6w 9WjVKMGvngbXXW/dHwpDHRCWPp7h/TF0Eb9Y4ymzTH7pjd3wZ1vM5wpONu0I2Wkbj3Tl IsSjL6nzLXH8we71PbgxBA6wN9IxthU8bTFCZXecolnbDoVu7LUOzAMyy2ads3ODka3c ia7ZHadxoJsUSJO1W2MbdwG147tagPaJOeEdvzb/w5k3AeMau01wI9vk5oiGqQXxPIEO l+sQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding; bh=+1CbdclIXuS1P33C/qOefRO4xRhZbvNeuMXF7mLBa/s=; b=gDxX2abRynFIxLyXSKpPUWDvlFe6uXxDPU9fEeyJoD8IZETOAUdQ2RADa6HXKNPIvU f8x9AexwYS6glRSXDmBCdWf9SFr1HSjbsYQ/s0szJRD416yAK0Jpt8jIkR1Z8snVeY+i 3blgkXwZzeglq1XBBeimA90BPpOtghJDOV50cqZY6Y2SHG9q/eMn21tOsL4WsgXcuhMW 8liSETSGbpRr0j6jczTNHjXPPwv9b7uk6hYaQvLyLJduaUTTDm+IONXcJlo3kDhnkqRD BEb263D42zql6xDLGpXQemNH41awEjChDqALVxETQVG0wN6NTMmknX1dx8tePrfVhH1M OxTA== X-Gm-Message-State: AOAM533E3Zm+/mbpMzqfg5Hy6tAaqT1qSPMphXbIJH/RdLChjUTlUBH4 FXw1ybplWDu8ZGRv82UE+QU= X-Google-Smtp-Source: ABdhPJxttcbg9hC5V+iz0fNwTi+hh/7+6jW7G99v9FTUrNl20QgnDLuW3tGew4ZkT9Vqe7bBUjXYRg== X-Received: by 2002:a17:90b:209:: with SMTP id fy9mr11546856pjb.187.1627199057549; Sun, 25 Jul 2021 00:44:17 -0700 (PDT) Received: from [10.1.1.25] (222-152-189-37-fibre.sparkbb.co.nz. [222.152.189.37]) by smtp.gmail.com with ESMTPSA id f11sm45050500pga.61.2021.07.25.00.44.13 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 25 Jul 2021 00:44:17 -0700 (PDT) Subject: Re: [PATCH v4 0/3] m68k: Improved switch stack handling To: Andreas Schwab References: <1624407696-20180-1-git-send-email-schmitzmic@gmail.com> <87zgunzovm.fsf@disp2133> <3b4f287b-7be2-0e7b-ae5a-6c11972601fb@gmail.com> <1b656c02-925c-c4ba-03d3-f56075cdfac5@gmail.com> <8735scvklk.fsf@disp2133> <87h7gopvz2.fsf@disp2133> <328e59fb-3e8c-e4cd-06b4-1975ce98614a@gmail.com> <877dhio13t.fsf@disp2133> <12992a3c-0740-f90e-aa4e-1ec1d8ea38f6@gmail.com> <87tukkk6h3.fsf@disp2133> <87eebn7w7y.fsf@igel.home> Cc: "Eric W. Biederman" , geert@linux-m68k.org, linux-arch@vger.kernel.org, linux-m68k@lists.linux-m68k.org, torvalds@linux-foundation.org From: Michael Schmitz Message-ID: Date: Sun, 25 Jul 2021 19:44:11 +1200 User-Agent: Mozilla/5.0 (X11; Linux ppc; rv:45.0) Gecko/20100101 Icedove/45.4.0 MIME-Version: 1.0 In-Reply-To: <87eebn7w7y.fsf@igel.home> Content-Type: text/plain; charset=iso-8859-15; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org Hi Andreas, Am 25.07.2021 um 00:05 schrieb Andreas Schwab: > On Jul 24 2021, Michael Schmitz wrote: > >> According to my understanding, you can't get a F-line exception on >> 68040. > > The F-line exeception vector is used for all FPU illegal and > unimplemented insns. Thanks - now from my reading of the fpsp040 code (which has mislead me in the past), it would seem that operations like sin() and exp() ought to raise that exception then. I don't see that in ARAnyM. Is there any emulator that correctly emulates the 68040 FPU in that regard? Cheers, Michael