From patchwork Wed Feb 22 11:44:37 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: 731084 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 3vSwjK22FCz9rxl for ; Wed, 22 Feb 2017 22:52:53 +1100 (AEDT) Received: from localhost ([::1]:51694 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cgVTW-0007u2-NK for incoming@patchwork.ozlabs.org; Wed, 22 Feb 2017 06:52:50 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56995) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cgVMN-0000P8-Fq for qemu-devel@nongnu.org; Wed, 22 Feb 2017 06:45:29 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cgVMJ-0003bw-2B for qemu-devel@nongnu.org; Wed, 22 Feb 2017 06:45:27 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:52982) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cgVMI-0003bg-PQ for qemu-devel@nongnu.org; Wed, 22 Feb 2017 06:45:22 -0500 Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v1MBi44J027429 for ; Wed, 22 Feb 2017 06:45:21 -0500 Received: from e28smtp09.in.ibm.com (e28smtp09.in.ibm.com [125.16.236.9]) by mx0a-001b2d01.pphosted.com with ESMTP id 28s5ksa4xj-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 22 Feb 2017 06:45:20 -0500 Received: from localhost by e28smtp09.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Wed, 22 Feb 2017 17:15:15 +0530 Received: from d28relay04.in.ibm.com (d28relay04.in.ibm.com [9.184.220.61]) by d28dlp02.in.ibm.com (Postfix) with ESMTP id 5D8BD3940064; Wed, 22 Feb 2017 17:15:15 +0530 (IST) Received: from d28av03.in.ibm.com (d28av03.in.ibm.com [9.184.220.65]) by d28relay04.in.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v1MBjFHE5636166; Wed, 22 Feb 2017 17:15:15 +0530 Received: from d28av03.in.ibm.com (localhost [127.0.0.1]) by d28av03.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v1MBjDMQ001187; Wed, 22 Feb 2017 17:15:14 +0530 Received: from abhimanyu.in.ibm.com ([9.102.3.12]) by d28av03.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id v1MBjABv001090; Wed, 22 Feb 2017 17:15:12 +0530 From: Nikunj A Dadhania To: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au, rth@twiddle.net Date: Wed, 22 Feb 2017 17:14:37 +0530 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1487763883-4877-1-git-send-email-nikunj@linux.vnet.ibm.com> References: <1487763883-4877-1-git-send-email-nikunj@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 17022211-0032-0000-0000-000001EB9370 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17022211-0033-0000-0000-0000121C954D Message-Id: <1487763883-4877-5-git-send-email-nikunj@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-02-22_08:, , 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-1702220115 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 v3 04/10] 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" 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 Reviewed-by: Richard Henderson --- target/ppc/translate.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/target/ppc/translate.c b/target/ppc/translate.c index c9f6768..9165450 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -816,6 +816,23 @@ 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 res, TCGv arg0, TCGv arg1, + int sub) +{ + TCGv t0; + + if (!is_isa300(ctx)) { + return; + } + + t0 = tcg_temp_new(); + tcg_gen_xor_tl(t0, arg0, arg1); + tcg_gen_xor_tl(t0, t0, res); + tcg_gen_extract_tl(cpu_ca32, t0, 32, 1); + tcg_temp_free(t0); +} + /* 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 +859,9 @@ 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); + if (is_isa300(ctx)) { + tcg_gen_mov_tl(cpu_ca32, cpu_ca); + } } else { TCGv zero = tcg_const_tl(0); if (add_ca) { @@ -850,6 +870,7 @@ 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, t0, arg1, arg2, 0); tcg_temp_free(zero); } } else {