From patchwork Mon May 20 17:02:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cornelia Huck X-Patchwork-Id: 10952107 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3A5A91390 for ; Mon, 20 May 2019 17:30:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1B1B92876D for ; Mon, 20 May 2019 17:30:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0F800288C6; Mon, 20 May 2019 17:30:27 +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=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 96747288DC for ; Mon, 20 May 2019 17:30:26 +0000 (UTC) Received: from localhost ([127.0.0.1]:39211 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hSm7F-0006pe-PR for patchwork-qemu-devel@patchwork.kernel.org; Mon, 20 May 2019 13:30:25 -0400 Received: from eggs.gnu.org ([209.51.188.92]:55237) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hSloO-0006Og-Dl for qemu-devel@nongnu.org; Mon, 20 May 2019 13:10:57 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hSloI-0005Pq-Ds for qemu-devel@nongnu.org; Mon, 20 May 2019 13:10:52 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60814) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hSloD-0005NC-GF; Mon, 20 May 2019 13:10:46 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 430DE308622B; Mon, 20 May 2019 17:10:32 +0000 (UTC) Received: from localhost (ovpn-204-110.brq.redhat.com [10.40.204.110]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 549D960BEC; Mon, 20 May 2019 17:10:26 +0000 (UTC) From: Cornelia Huck To: Peter Maydell Date: Mon, 20 May 2019 19:02:49 +0200 Message-Id: <20190520170302.13643-42-cohuck@redhat.com> In-Reply-To: <20190520170302.13643-1-cohuck@redhat.com> References: <20190520170302.13643-1-cohuck@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.42]); Mon, 20 May 2019 17:10:39 +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] [PULL 41/54] s390x/tcg: Implement VECTOR SUBTRACT WITH BORROW COMPUTE BORROW INDICATION 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, Richard Henderson , qemu-devel@nongnu.org, David Hildenbrand Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: David Hildenbrand Mostly courtesy of Richard H. Reviewed-by: Richard Henderson Signed-off-by: David Hildenbrand --- target/s390x/insn-data.def | 2 ++ target/s390x/translate_vx.inc.c | 34 +++++++++++++++++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index a60d8531dc52..a8d90517f613 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -1180,6 +1180,8 @@ F(0xe7f5, VSCBI, VRR_c, V, 0, 0, 0, 0, vscbi, 0, IF_VEC) /* VECTOR SUBTRACT WITH BORROW INDICATION */ F(0xe7bf, VSBI, VRR_d, V, 0, 0, 0, 0, vsbi, 0, IF_VEC) +/* VECTOR SUBTRACT WITH BORROW COMPUTE BORROW INDICATION */ + F(0xe7bd, VSBCBI, VRR_d, V, 0, 0, 0, 0, vsbcbi, 0, IF_VEC) #ifndef CONFIG_USER_ONLY /* COMPARE AND SWAP AND PURGE */ diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.inc.c index 66a938a90972..85cd5f03b352 100644 --- a/target/s390x/translate_vx.inc.c +++ b/target/s390x/translate_vx.inc.c @@ -2218,3 +2218,37 @@ static DisasJumpType op_vsbi(DisasContext *s, DisasOps *o) get_field(s->fields, v4)); return DISAS_NEXT; } + +static void gen_sbcbi2_i64(TCGv_i64 dl, TCGv_i64 dh, TCGv_i64 al, TCGv_i64 ah, + TCGv_i64 bl, TCGv_i64 bh, TCGv_i64 cl, TCGv_i64 ch) +{ + TCGv_i64 th = tcg_temp_new_i64(); + TCGv_i64 tl = tcg_temp_new_i64(); + TCGv_i64 zero = tcg_const_i64(0); + + tcg_gen_andi_i64(tl, cl, 1); + tcg_gen_sub2_i64(tl, th, al, zero, tl, zero); + tcg_gen_sub2_i64(tl, th, tl, th, bl, zero); + tcg_gen_andi_i64(th, th, 1); + tcg_gen_sub2_i64(tl, th, ah, zero, th, zero); + tcg_gen_sub2_i64(tl, th, tl, th, bh, zero); + tcg_gen_andi_i64(dl, th, 1); + tcg_gen_mov_i64(dh, zero); + + tcg_temp_free_i64(tl); + tcg_temp_free_i64(th); + tcg_temp_free_i64(zero); +} + +static DisasJumpType op_vsbcbi(DisasContext *s, DisasOps *o) +{ + if (get_field(s->fields, m5) != ES_128) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + gen_gvec128_4_i64(gen_sbcbi2_i64, get_field(s->fields, v1), + get_field(s->fields, v2), get_field(s->fields, v3), + get_field(s->fields, v4)); + return DISAS_NEXT; +}