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Violators will be prosecuted; Thu, 28 Jul 2016 23:44:47 +0530 X-IBM-Helo: d28dlp01.in.ibm.com X-IBM-MailFrom: nikunj@linux.vnet.ibm.com X-IBM-RcptTo: qemu-devel@nongnu.org;qemu-ppc@nongnu.org Received: from d28relay03.in.ibm.com (d28relay03.in.ibm.com [9.184.220.60]) by d28dlp01.in.ibm.com (Postfix) with ESMTP id B35BAE0045; Thu, 28 Jul 2016 23:49:02 +0530 (IST) Received: from d28av01.in.ibm.com (d28av01.in.ibm.com [9.184.220.63]) by d28relay03.in.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u6SIEltU10158464; Thu, 28 Jul 2016 23:44:47 +0530 Received: from d28av01.in.ibm.com (localhost [127.0.0.1]) by d28av01.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u6SIEghv029970; Thu, 28 Jul 2016 23:44:46 +0530 Received: from abhimanyu.in.ibm.com ([9.79.214.88]) by d28av01.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u6SIEXqj029553; Thu, 28 Jul 2016 23:44:40 +0530 From: Nikunj A Dadhania To: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au, rth@twiddle.net Date: Thu, 28 Jul 2016 23:44:17 +0530 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1469729658-4832-1-git-send-email-nikunj@linux.vnet.ibm.com> References: <1469729658-4832-1-git-send-email-nikunj@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16072818-0008-0000-0000-000002F5748B X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16072818-0009-0000-0000-00000E6D932E Message-Id: <1469729658-4832-8-git-send-email-nikunj@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-07-28_12:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1604210000 definitions=main-1607280181 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH v2 7/8] target-ppc: add vsrv instruction 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: nikunj@linux.vnet.ibm.com, qemu-devel@nongnu.org, Vivek Andrew Sha , aneesh.kumar@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 From: Vivek Andrew Sha Adds Vector Shift Right Variable instruction. Signed-off-by: Vivek Andrew Sha [ reverse the order of computation to avoid temporary array ] Signed-off-by: Nikunj A Dadhania Reviewed-by: Richard Henderson --- target-ppc/helper.h | 1 + target-ppc/int_helper.c | 17 +++++++++++++++++ target-ppc/translate/vmx-impl.c | 1 + target-ppc/translate/vmx-ops.c | 1 + 4 files changed, 20 insertions(+) diff --git a/target-ppc/helper.h b/target-ppc/helper.h index d4c060b..93ac9e1 100644 --- a/target-ppc/helper.h +++ b/target-ppc/helper.h @@ -211,6 +211,7 @@ DEF_HELPER_3(vslw, void, avr, avr, avr) DEF_HELPER_3(vsld, void, avr, avr, avr) DEF_HELPER_3(vslo, void, avr, avr, avr) DEF_HELPER_3(vsro, void, avr, avr, avr) +DEF_HELPER_3(vsrv, void, avr, avr, avr) DEF_HELPER_3(vslv, void, avr, avr, avr) DEF_HELPER_3(vaddcuw, void, avr, avr, avr) DEF_HELPER_3(vsubcuw, void, avr, avr, avr) diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c index 12fe144..552b2e0 100644 --- a/target-ppc/int_helper.c +++ b/target-ppc/int_helper.c @@ -1710,6 +1710,23 @@ void helper_vslv(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) } } +void helper_vsrv(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) +{ + int i; + unsigned int shift, bytes; + + /* Use reverse order, as destination and source register can be same. Its + * being modified in place saving temporary, reverse order will guarantee + * that computed result is not fed back. + */ + for (i = ARRAY_SIZE(r->u8) - 1; i >= 0; i--) { + shift = b->u8[i] & 0x7; /* extract shift value */ + bytes = ((i ? a->u8[i - 1] : 0) << 8) + a->u8[i]; + /* extract adjacent bytes */ + r->u8[i] = (bytes >> shift) & 0xFF; /* shift and store result */ + } +} + void helper_vsldoi(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t shift) { int sh = shift & 0xf; diff --git a/target-ppc/translate/vmx-impl.c b/target-ppc/translate/vmx-impl.c index 5844a7e..ac78caf 100644 --- a/target-ppc/translate/vmx-impl.c +++ b/target-ppc/translate/vmx-impl.c @@ -367,6 +367,7 @@ GEN_VXFORM(vsrab, 2, 12); GEN_VXFORM(vsrah, 2, 13); GEN_VXFORM(vsraw, 2, 14); GEN_VXFORM(vsrad, 2, 15); +GEN_VXFORM(vsrv, 2, 28); GEN_VXFORM(vslv, 2, 29); GEN_VXFORM(vslo, 6, 16); GEN_VXFORM(vsro, 6, 17); diff --git a/target-ppc/translate/vmx-ops.c b/target-ppc/translate/vmx-ops.c index ffc4443..7449396 100644 --- a/target-ppc/translate/vmx-ops.c +++ b/target-ppc/translate/vmx-ops.c @@ -110,6 +110,7 @@ GEN_VXFORM(vsrab, 2, 12), GEN_VXFORM(vsrah, 2, 13), GEN_VXFORM(vsraw, 2, 14), GEN_VXFORM_207(vsrad, 2, 15), +GEN_VXFORM_300(vsrv, 2, 28), GEN_VXFORM_300(vslv, 2, 29), GEN_VXFORM(vslo, 6, 16), GEN_VXFORM(vsro, 6, 17),