From patchwork Tue Jun 20 20:51:17 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 778473 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3wsg6828SJz9s0m for ; Wed, 21 Jun 2017 06:53:04 +1000 (AEST) Received: from localhost ([::1]:50610 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dNQ90-0008Ja-0Z for incoming@patchwork.ozlabs.org; Tue, 20 Jun 2017 16:53:02 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55428) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dNQ87-0008EJ-0Q for qemu-devel@nongnu.org; Tue, 20 Jun 2017 16:52:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dNQ82-0004Ff-DG for qemu-devel@nongnu.org; Tue, 20 Jun 2017 16:52:07 -0400 Received: from mout.kundenserver.de ([212.227.17.24]:52245) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dNQ82-0004F2-3B for qemu-devel@nongnu.org; Tue, 20 Jun 2017 16:52:02 -0400 Received: from localhost.localdomain ([78.238.229.36]) by mrelayeu.kundenserver.de (mreue104 [212.227.15.183]) with ESMTPSA (Nemesis) id 0M5gVc-1dh9ra1oPA-00xcBp; Tue, 20 Jun 2017 22:51:26 +0200 From: Laurent Vivier To: qemu-devel@nongnu.org Date: Tue, 20 Jun 2017 22:51:17 +0200 Message-Id: <20170620205121.26515-3-laurent@vivier.eu> X-Mailer: git-send-email 2.9.4 In-Reply-To: <20170620205121.26515-1-laurent@vivier.eu> References: <20170620205121.26515-1-laurent@vivier.eu> X-Provags-ID: V03:K0:obBHzNvW891xuMjMOkkdNY3jWNtiP3YYVTRXbBahiTj2VN0Uid3 qY6dO0H1CpRq0UdRpZx5HA7Vn6Xxik4E3KhXwgajtsahGU4mBFGZjsgYvyYohqy08HKw+N8 HhcOSV4tXrHvBIU01rpCsSHV/095tBe1iN8aHYYRIUg4pXQUgNxmfn8WZNtm03FfTq7j/Pj ZwPEmXB1L7z6xw87Ng/eg== X-UI-Out-Filterresults: notjunk:1; V01:K0:ssbU1zLMS5M=:az0pcYUy9Pt4BtheaEBUda rTGFrtBwRaaKku/BGy1ogLcONjFyqiJaLRPABdTM6emGs11MSV2ikEhxYQP0VxJvH0J0Zus5h n7iUqVbQybvf1X08RX+VuNHF9YcIdC72btIYI/Qi14tdpviM/WjfE8OpO+Kt1ijCENPevoe5Q 3rJHgOyHD6JJtAEutZffN3lV/7mHr7TArE07THuS++ZeloBWvxDtoaTNOGMqx3Y8gTVmNUQUj 33Qw3HEOQFRvjDWLF3bAVgG0QVB3hwhucHE2bAeZIMWJ6pjZ7T1XCJRkIdrWZ5vO3C716uTYL MLM+zsMtG2WyVtE1tocPjSgUb2lQ3LnnYMH9Ydqehhj57/Tii74ICM7BQqQj9WTC8cGp/UFOY 7j48ZxRRTM/xppatZEhs1SE0wDkINGAZL/0jOqMU+qENLSNM7b1H0j5JNUfoeUmqKei7RLfBy MbBdWWWxaXykgzkAYL9tLbHUDrWPFBODjsn+HZfKPE5drygiCIhbbXSPex4/7TgmAqJm0Ymzi OLqpRF9LFbZAJyBpKdJRuezVSJupdMfyxvv8Zmy8gzI5krkp5izcsyp6304c9U2EHxa4mptCh yRLUo2wDLjS2iQuktS4eloRgPp6Vnrbp1AiQBEtUmPhDqpaohGYmv+02cnEnhHN/yOtdiFigx W8zLh3qe28C3ncK0pczSZmeIAMvxzrCCf9t+uuwQDiXYtyBGkvd/5Rs4fDikmlfZMqiM= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 212.227.17.24 Subject: [Qemu-devel] [PATCH v5 2/6] target-m68k: initialize FPU registers X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Huth , Riku Voipio , Laurent Vivier , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Aurelien Jarno , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" on reset, set FP registers to NaN and control registers to 0 Signed-off-by: Laurent Vivier Reviewed-by: Richard Henderson --- target/m68k/cpu.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c index f068922..f2e031f 100644 --- a/target/m68k/cpu.c +++ b/target/m68k/cpu.c @@ -49,6 +49,8 @@ static void m68k_cpu_reset(CPUState *s) M68kCPU *cpu = M68K_CPU(s); M68kCPUClass *mcc = M68K_CPU_GET_CLASS(cpu); CPUM68KState *env = &cpu->env; + float64 nan = float64_default_nan(NULL); + int i; mcc->parent_reset(s); @@ -57,7 +59,12 @@ static void m68k_cpu_reset(CPUState *s) env->sr = 0x2700; #endif m68k_switch_sp(env); - /* ??? FP regs should be initialized to NaN. */ + for (i = 0; i < 8; i++) { + env->fregs[i] = nan; + } + env->fpcr = 0; + env->fpsr = 0; + cpu_m68k_set_ccr(env, 0); /* TODO: We should set PC from the interrupt vector. */ env->pc = 0;