From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by 10.25.159.19 with SMTP id i19csp1754745lfe; Sun, 17 Jan 2016 23:15:50 -0800 (PST) X-Received: by 10.140.108.8 with SMTP id i8mr29654367qgf.83.1453101349976; Sun, 17 Jan 2016 23:15:49 -0800 (PST) Return-Path: Received: from lists.gnu.org (lists.gnu.org. [2001:4830:134:3::11]) by mx.google.com with ESMTPS id o38si29603782qge.95.2016.01.17.23.15.49 for (version=TLS1 cipher=AES128-SHA bits=128/128); Sun, 17 Jan 2016 23:15:49 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) client-ip=2001:4830:134:3::11; Authentication-Results: mx.google.com; spf=pass (google.com: domain of qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) smtp.mailfrom=qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org; dkim=fail header.i=@gmail.com; dmarc=fail (p=NONE dis=NONE) header.from=gmail.com Received: from localhost ([::1]:58005 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aL42X-0007on-Bp for alex.bennee@linaro.org; Mon, 18 Jan 2016 02:15:49 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42562) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aL3zv-0003Gt-5j for qemu-devel@nongnu.org; Mon, 18 Jan 2016 02:13:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aL3zu-00075w-5D for qemu-devel@nongnu.org; Mon, 18 Jan 2016 02:13:07 -0500 Received: from mail-pa0-x22d.google.com ([2607:f8b0:400e:c03::22d]:34594) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aL3zt-00075c-Sd; Mon, 18 Jan 2016 02:13:06 -0500 Received: by mail-pa0-x22d.google.com with SMTP id uo6so415136428pac.1; Sun, 17 Jan 2016 23:13:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references :in-reply-to:references; bh=DuUKhiPMRPtZzgP92rKzKYoaDBQ66S3mGqthNdSSzPU=; b=hgmffcT9RaZhVXCKGBvORYnDFx1g0HlKqS4fOKa28i4sY9e1QX87691OV417zlXBoc fBgkECaQoOwoboeafY0j0OKFc0RIquA/vLmCmURU6bNyK28LK/QW6G1j0GVFWHZhIMP2 Gaaq542VjAJUSNNTm+L1FuPEeKB0GJ3SaLEQ70+4ogF+yp8pP7BnG7kEA54bks0qUUdG RYoYSuaR+1WM/DDr5luFATIJFnJcq60ZMV7At+f0kjR7/G9cAeJCHylT0zAGEPYAs9M2 Ck2TNApDPMAMLVrHaMTqeLKQdo1d3jBanB7EbsCIdLJTwToGTBRdcuzRxERLmu1euWcx UnKA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:in-reply-to:references; bh=DuUKhiPMRPtZzgP92rKzKYoaDBQ66S3mGqthNdSSzPU=; b=aMnwnRhAaZPqXYlHzF3JDje363aJInXQ0kgPsmJXBSy/ZIMjDdEn2EWt1vyg8i1ykn jBW+xahiirOXwOX3oCgCXgzrZi79MqC6lKXlPsLDtS//VJkKJ9ZqUxF/GmLb/4h0BwXr 9f9Qc7dckWsBkOwAuZECWIWFgNM8bu2PY6RnFofkjUzk5uoH6CQ010RHAwDPwfwzeZPR iCdM03OREnUYknzlVb6iG8ESbI4C7eEIFFeHu7hVm5CR0nPaO/WZHZeyc05Uy5CnMwZA w1rfUVlKMCfq7d1ekhMAFv32Mls44gwX9ia8sNFlEqtFq8F8p+Vaygwm8MzNGdQJQnpA vfVg== X-Gm-Message-State: ALoCoQkO9sfbYk+m4WaKOGiAv+tUDeHPa1E+CuXGMTNZlbvkUQut36ClimrpQNRm2Ka2DH7OhRxuAyRFj4Gmw0bch9Dj49l5Sw== X-Received: by 10.67.6.67 with SMTP id cs3mr34641273pad.143.1453101185419; Sun, 17 Jan 2016 23:13:05 -0800 (PST) Received: from localhost.localdomain (c-73-70-184-119.hsd1.ca.comcast.net. [73.70.184.119]) by smtp.gmail.com with ESMTPSA id xv2sm31471880pab.10.2016.01.17.23.13.03 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 17 Jan 2016 23:13:04 -0800 (PST) From: Peter Crosthwaite X-Google-Original-From: Peter Crosthwaite To: qemu-devel@nongnu.org Date: Sun, 17 Jan 2016 23:12:37 -0800 Message-Id: <2e141a5f2a5c38936bdf1a06eaeb1a5595f0f833.1453100525.git.crosthwaite.peter@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: In-Reply-To: References: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2607:f8b0:400e:c03::22d Cc: peter.maydell@linaro.org, Peter Crosthwaite , alistair.francis@xilinx.com, sridhar_kulk@yahoo.com, qemu-arm@nongnu.org, pbonzini@redhat.com, piotr.krol@3mdeb.com Subject: [Qemu-devel] [PATCH v1 10/17] target-arm: implement setend X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org Sender: qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org X-TUID: LuOi+treyyCP From: Paolo Bonzini Since this is not a high-performance path, just use a helper to flip the E bit and force a lookup in the hash table since the flags have changed. Signed-off-by: Paolo Bonzini Signed-off-by: Peter Crosthwaite --- target-arm/helper.h | 1 + target-arm/op_helper.c | 5 +++++ target-arm/translate.c | 16 ++++++++-------- 3 files changed, 14 insertions(+), 8 deletions(-) diff --git a/target-arm/helper.h b/target-arm/helper.h index c2a85c7..2315a9c 100644 --- a/target-arm/helper.h +++ b/target-arm/helper.h @@ -48,6 +48,7 @@ DEF_HELPER_FLAGS_3(sel_flags, TCG_CALL_NO_RWG_SE, i32, i32, i32, i32) DEF_HELPER_2(exception_internal, void, env, i32) DEF_HELPER_4(exception_with_syndrome, void, env, i32, i32, i32) +DEF_HELPER_1(setend, void, env) DEF_HELPER_1(wfi, void, env) DEF_HELPER_1(wfe, void, env) DEF_HELPER_1(yield, void, env) diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c index e42d287..2a4bc67 100644 --- a/target-arm/op_helper.c +++ b/target-arm/op_helper.c @@ -295,6 +295,11 @@ uint32_t HELPER(usat16)(CPUARMState *env, uint32_t x, uint32_t shift) return res; } +void HELPER(setend)(CPUARMState *env) +{ + env->uncached_cpsr ^= CPSR_E; +} + /* Function checks whether WFx (WFI/WFE) instructions are set up to be trapped. * The function returns the target EL (1-3) if the instruction is to be trapped; * otherwise it returns 0 indicating it is not trapped. diff --git a/target-arm/translate.c b/target-arm/translate.c index cb925ef..192a5d6 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -7726,10 +7726,10 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn) if ((insn & 0x0ffffdff) == 0x01010000) { ARCH(6); /* setend */ - if (((insn >> 9) & 1) != s->bswap_code) { - /* Dynamic endianness switching not implemented. */ - qemu_log_mask(LOG_UNIMP, "arm: unimplemented setend\n"); - goto illegal_op; + if (((insn >> 9) & 1) != !!(s->mo_endianness == MO_BE)) { + gen_helper_setend(cpu_env); + gen_set_pc_im(s, s->pc); + s->is_jmp = DISAS_JUMP; } return; } else if ((insn & 0x0fffff00) == 0x057ff000) { @@ -11064,10 +11064,10 @@ static void disas_thumb_insn(CPUARMState *env, DisasContext *s) case 2: /* setend */ ARCH(6); - if (((insn >> 3) & 1) != s->bswap_code) { - /* Dynamic endianness switching not implemented. */ - qemu_log_mask(LOG_UNIMP, "arm: unimplemented setend\n"); - goto illegal_op; + if (((insn >> 3) & 1) != !!(s->mo_endianness == MO_BE)) { + gen_helper_setend(cpu_env); + gen_set_pc_im(s, s->pc); + s->is_jmp = DISAS_JUMP; } break; case 3: -- 1.9.1