From nobody Sun Nov 9 16:23:50 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1551182105192576.6930725912885; Tue, 26 Feb 2019 03:55:05 -0800 (PST) Received: from localhost ([127.0.0.1]:53597 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gybK9-0007JL-42 for importer@patchew.org; Tue, 26 Feb 2019 06:55:01 -0500 Received: from eggs.gnu.org ([209.51.188.92]:47635) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gyb5i-0004qA-N0 for qemu-devel@nongnu.org; Tue, 26 Feb 2019 06:40:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gyb5h-00076H-LY for qemu-devel@nongnu.org; Tue, 26 Feb 2019 06:40:06 -0500 Received: from mx1.redhat.com ([209.132.183.28]:41890) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gyb5h-0006s4-CQ; Tue, 26 Feb 2019 06:40:05 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 5BCC41E317; Tue, 26 Feb 2019 11:39:48 +0000 (UTC) Received: from t460s.redhat.com (ovpn-117-93.ams2.redhat.com [10.36.117.93]) by smtp.corp.redhat.com (Postfix) with ESMTP id 018D9600C0; Tue, 26 Feb 2019 11:39:46 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Date: Tue, 26 Feb 2019 12:38:56 +0100 Message-Id: <20190226113915.20150-15-david@redhat.com> In-Reply-To: <20190226113915.20150-1-david@redhat.com> References: <20190226113915.20150-1-david@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Tue, 26 Feb 2019 11:39:48 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v1 14/33] s390x/tcg: Implement VECTOR LOAD MULTIPLE 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-s390x@nongnu.org, Cornelia Huck , David Hildenbrand , Thomas Huth , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Also fairly easy to implement. One issue we have is that exceptions will result in some vectors already being modified. At least handle it consistently per vector by using a temporary vector. Good enough for now, add a FIXME. Signed-off-by: David Hildenbrand Reviewed-by: Richard Henderson --- target/s390x/insn-data.def | 2 ++ target/s390x/translate_vx.inc.c | 26 ++++++++++++++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index 46a0739703..65ff8bbd2e 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -1000,6 +1000,8 @@ F(0xe721, VLGV, VRS_c, V, la2, 0, r1, 0, vlgv, 0, IF_VEC) /* VECTOR LOAD LOGICAL ELEMENT AND ZERO */ F(0xe704, VLLEZ, VRX, V, la2, 0, 0, 0, vllez, 0, IF_VEC) +/* VECTOR LOAD MULTIPLE */ + F(0xe736, VLM, VRS_a, V, la2, 0, 0, 0, vlm, 0, IF_VEC) =20 #ifndef CONFIG_USER_ONLY /* COMPARE AND SWAP AND PURGE */ diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.in= c.c index 301408d1f2..c9f57afd4a 100644 --- a/target/s390x/translate_vx.inc.c +++ b/target/s390x/translate_vx.inc.c @@ -377,3 +377,29 @@ static DisasJumpType op_vllez(DisasContext *s, DisasOp= s *o) gen_gvec_mov(get_field(s->fields, v1), TMP_VREG_0); return DISAS_NEXT; } + +static DisasJumpType op_vlm(DisasContext *s, DisasOps *o) +{ + const uint8_t v3 =3D get_field(s->fields, v3); + uint8_t v1 =3D get_field(s->fields, v1); + + while (v3 < v1 || (v3 - v1 + 1) > 16) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + /* + * FIXME: On exceptions we must not modify any vector. + */ + for (;; v1++) { + load_vec_element(s, TMP_VREG_0, 0, o->addr1, MO_64); + gen_addi_and_wrap_i64(s, o->addr1, o->addr1, 8); + load_vec_element(s, TMP_VREG_0, 1, o->addr1, MO_64); + gen_gvec_mov(v1, TMP_VREG_0); + if (v1 =3D=3D v3) { + break; + } + gen_addi_and_wrap_i64(s, o->addr1, o->addr1, 8); + } + return DISAS_NEXT; +} --=20 2.17.2