From patchwork Mon Feb 20 10:11:53 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Nikunj A. Dadhania" X-Patchwork-Id: 9582499 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 47E746042F for ; Mon, 20 Feb 2017 10:42:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 39A27281DB for ; Mon, 20 Feb 2017 10:42:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2CCD82845F; Mon, 20 Feb 2017 10:42:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id CAAA1281DB for ; Mon, 20 Feb 2017 10:42:28 +0000 (UTC) Received: from localhost ([::1]:37337 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cflQJ-0000u2-NT for patchwork-qemu-devel@patchwork.kernel.org; Mon, 20 Feb 2017 05:42:27 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44364) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cfkz8-0001Rs-GV for qemu-devel@nongnu.org; Mon, 20 Feb 2017 05:14:23 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cfkz5-0003Cu-DV for qemu-devel@nongnu.org; Mon, 20 Feb 2017 05:14:22 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:45564) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cfkz5-0003CQ-3M for qemu-devel@nongnu.org; Mon, 20 Feb 2017 05:14:19 -0500 Received: from pps.filterd (m0098394.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v1KA9rYZ001559 for ; Mon, 20 Feb 2017 05:14:17 -0500 Received: from e23smtp02.au.ibm.com (e23smtp02.au.ibm.com [202.81.31.144]) by mx0a-001b2d01.pphosted.com with ESMTP id 28qw8wb259-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Mon, 20 Feb 2017 05:14:16 -0500 Received: from localhost by e23smtp02.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Mon, 20 Feb 2017 20:14:13 +1000 Received: from d23relay08.au.ibm.com (d23relay08.au.ibm.com [9.185.71.33]) by d23dlp03.au.ibm.com (Postfix) with ESMTP id 773263578052; Mon, 20 Feb 2017 21:14:12 +1100 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay08.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v1KAE5WJ22151350; Mon, 20 Feb 2017 21:14:12 +1100 Received: from d23av01.au.ibm.com (localhost [127.0.0.1]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v1KAD7wV005558; Mon, 20 Feb 2017 21:13:07 +1100 Received: from abhimanyu.in.ibm.com (abhimanyu.in.ibm.com [9.124.35.122]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id v1KACugg002964; Mon, 20 Feb 2017 21:13:05 +1100 From: Nikunj A Dadhania To: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au, rth@twiddle.net Date: Mon, 20 Feb 2017 15:41:53 +0530 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1487585521-19445-1-git-send-email-nikunj@linux.vnet.ibm.com> References: <1487585521-19445-1-git-send-email-nikunj@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 17022010-0004-0000-0000-000001E2C48A X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17022010-0005-0000-0000-000009B2ED53 Message-Id: <1487585521-19445-3-git-send-email-nikunj@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-02-20_06:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=2 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1612050000 definitions=main-1702200103 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH v1 02/10] target/ppc: Update ca32 in arithmetic add 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: qemu-devel@nongnu.org, nikunj@linux.vnet.ibm.com, bharata@linux.vnet.ibm.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Adds routine to compute ca32 - gen_op_arith_compute_ca32 For 64-bit mode use the compute ca32 routine. While for 32-bit mode, CA and CA32 will have same value. Signed-off-by: Nikunj A Dadhania --- target/ppc/translate.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/target/ppc/translate.c b/target/ppc/translate.c index 498b095..2a2d071 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -816,6 +816,36 @@ static inline void gen_op_arith_compute_ov(DisasContext *ctx, TCGv arg0, tcg_gen_or_tl(cpu_so, cpu_so, cpu_ov); } +static inline void gen_op_arith_compute_ca32(DisasContext *ctx, TCGv arg0, + TCGv arg1, bool add_ca, int sub) +{ + TCGv t0 = tcg_temp_new(); + TCGv t1 = tcg_temp_new(); + TCGv inv0 = tcg_temp_new(); + + tcg_gen_extract_tl(t0, arg0, 0, 32); + tcg_gen_extract_tl(t1, arg1, 0, 32); + if (sub) { + tcg_gen_not_tl(inv0, t0); + if (add_ca) { + tcg_gen_add_tl(t1, t1, cpu_ca32); + } else { + tcg_gen_addi_tl(t1, t1, 1); + } + tcg_gen_add_tl(t0, t1, inv0); + tcg_gen_extract_tl(cpu_ca32, t0, 32, 1); + } else { + tcg_gen_add_tl(t0, t0, t1); + if (add_ca) { + tcg_gen_add_tl(t0, t0, cpu_ca32); + } + tcg_gen_extract_tl(cpu_ca32, t0, 32, 1); + } + tcg_temp_free(t0); + tcg_temp_free(t1); +} + + /* Common add function */ static inline void gen_op_arith_add(DisasContext *ctx, TCGv ret, TCGv arg1, TCGv arg2, bool add_ca, bool compute_ca, @@ -842,6 +872,7 @@ static inline void gen_op_arith_add(DisasContext *ctx, TCGv ret, TCGv arg1, tcg_temp_free(t1); tcg_gen_shri_tl(cpu_ca, cpu_ca, 32); /* extract bit 32 */ tcg_gen_andi_tl(cpu_ca, cpu_ca, 1); + tcg_gen_mov_tl(cpu_ca32, cpu_ca); } else { TCGv zero = tcg_const_tl(0); if (add_ca) { @@ -850,6 +881,7 @@ static inline void gen_op_arith_add(DisasContext *ctx, TCGv ret, TCGv arg1, } else { tcg_gen_add2_tl(t0, cpu_ca, arg1, zero, arg2, zero); } + gen_op_arith_compute_ca32(ctx, arg1, arg2, add_ca, 0); tcg_temp_free(zero); } } else {