From nobody Tue Feb 10 00:39:45 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1610446140; cv=none; d=zohomail.com; s=zohoarc; b=lktTwBrr6PO4p1pq8w4Tq1FB9NcjxQNKI7k78ZrmEPJ5AQIUdUVhXRySY9ePUiIE0y/X95+ftI2bYV3v1iNZToH1Ke6Ttu80cf3NsOxOtgXciqnQ2DyCDKL2A4qwiRbXZ/zvZmggfQoL/eU3qzComoaGxWHiEZ9Ar1cIXict6wU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1610446140; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=ooeYII9a9p02Rf950LgKJWyqZVGnNJSme//eJhfqgt0=; b=J9meibpynNPvCaID3E09aeiKgtEa2fm9Jc74axuyP5pAnThlK6aVfF31wSvCt18E8LTVggTHf5Eo9TVS1f7nntV5kITga0vtTGR/t2jthvy6Yk3O8iIP7cUUQbpUqMo/dLFjoxdy+ywpjE5H5oCFJlf/BdrZ9QRqNJnDZiJOCUY= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1610446140336920.2964372815497; Tue, 12 Jan 2021 02:09:00 -0800 (PST) Received: from localhost ([::1]:51214 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kzGbi-0006tu-Vx for importer@patchew.org; Tue, 12 Jan 2021 05:08:59 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:37740) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kzGBp-0004f0-76 for qemu-devel@nongnu.org; Tue, 12 Jan 2021 04:42:13 -0500 Received: from mail-pf1-x42a.google.com ([2607:f8b0:4864:20::42a]:44974) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kzGBm-0007lM-ET for qemu-devel@nongnu.org; Tue, 12 Jan 2021 04:42:12 -0500 Received: by mail-pf1-x42a.google.com with SMTP id a188so1051120pfa.11 for ; Tue, 12 Jan 2021 01:42:10 -0800 (PST) Received: from frankchang-ThinkPad-T490.internal.sifive.com (114-34-229-221.HINET-IP.hinet.net. [114.34.229.221]) by smtp.gmail.com with ESMTPSA id h16sm2865664pgd.62.2021.01.12.01.42.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Jan 2021 01:42:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=ooeYII9a9p02Rf950LgKJWyqZVGnNJSme//eJhfqgt0=; b=ArXijuxhXQLr2VEWC/4e5vW7JeSK+SWICaZ1prNCgQQXCR2d1gCcHZuDKg4rUUKxYj iKkMz8C9SzjAXw10bHgaOx3tjfCvueDriK5HBHqbkPLx+KFhtIQYLnPYMGBD5aBe9xV5 ohfmmLy5N52sDCx9z+7VNXg/6Qp+jjLRcxHhEtqqhVQdpmY5giUNkk7VNRk+kE1Z10Po Xx3Ku+iFOGPTDk2wVbGIFc9JyVHjcRBqJSV2Ii/1eR6HXPluCprCGyrpXlt7ysBlr0DZ ov/ozOl9BKd5g+RShcmQfEdlCQQrItIEIg3GjQQqjLnD+FOGAhQ7zTqDS3zP/GYPZkPk RkWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=ooeYII9a9p02Rf950LgKJWyqZVGnNJSme//eJhfqgt0=; b=qG5oy9VE631K5VzBIaub6la/+kp54kpQvSJ0BfqAo7GAX/F0AK7QTO+kB7vcpH4U+s TFTRddRhXF1B99ooLYF2PWiSh2+qPJ82vdORq5xmNVLHzvwKUtJwmlGZoUJJBZzz0+H0 xRtSQvtHaTDiGbZLLchJeauK1RoaCGk0UbODPviEDjL4/K7rpacMvZUJEwy3zWSGYWk4 6aKa0C3kQnX6Yeed9ilXBUdknsySTSrV+afx0dl8qeHHtU29yQQA/34jaracmuFi8bGI g23POBaMVyhP/fKNZ3v2UzWFpqeg+pAGK5eMwX4D/KLCI8UwFalja7GUwRZM6Dvvpo0l 3t5w== X-Gm-Message-State: AOAM5332i3accfHPv9Ve2mws3cGjBjVp3GaLfYLwdPo6phrNFlmqxegB 4qWp+T+6Vaafhmr+yEVqkEmrh5elndyKnsNc X-Google-Smtp-Source: ABdhPJxFe9+0BhPXMXq86tAfXsyEEVFkeMVSJau5TZqSvRFiIwUz3bgFMLfqSQSmE2TtoCtywT627g== X-Received: by 2002:a62:dd94:0:b029:19e:92ec:722a with SMTP id w142-20020a62dd940000b029019e92ec722amr4124825pff.50.1610444528979; Tue, 12 Jan 2021 01:42:08 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v6 31/72] target/riscv: rvv-1.0: iota instruction Date: Tue, 12 Jan 2021 17:39:05 +0800 Message-Id: <20210112093950.17530-32-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210112093950.17530-1-frank.chang@sifive.com> References: <20210112093950.17530-1-frank.chang@sifive.com> Received-SPF: pass (zohomail.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; Received-SPF: pass client-ip=2607:f8b0:4864:20::42a; envelope-from=frank.chang@sifive.com; helo=mail-pf1-x42a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sagar Karandikar , Frank Chang , Bastian Koppelmann , Richard Henderson , Alistair Francis , Palmer Dabbelt , LIU Zhiwei Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Frank Chang Signed-off-by: Frank Chang Reviewed-by: Richard Henderson --- target/riscv/insn32.decode | 2 +- target/riscv/insn_trans/trans_rvv.c.inc | 10 ++++++++-- 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 6b3caef1721..fae5ea3fa63 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -607,7 +607,7 @@ vfirst_m 010000 . ..... 10001 010 ..... 1010111 = @r2_vm vmsbf_m 010100 . ..... 00001 010 ..... 1010111 @r2_vm vmsif_m 010100 . ..... 00011 010 ..... 1010111 @r2_vm vmsof_m 010100 . ..... 00010 010 ..... 1010111 @r2_vm -viota_m 010110 . ..... 10000 010 ..... 1010111 @r2_vm +viota_m 010100 . ..... 10000 010 ..... 1010111 @r2_vm vid_v 010110 . 00000 10001 010 ..... 1010111 @r1_vm vext_x_v 001100 1 ..... ..... 010 ..... 1010111 @r vmv_s_x 001101 1 00000 ..... 110 ..... 1010111 @r2 diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_tr= ans/trans_rvv.c.inc index 5b229d55307..6e45186b9b4 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -2989,12 +2989,18 @@ GEN_M_TRANS(vmsbf_m) GEN_M_TRANS(vmsif_m) GEN_M_TRANS(vmsof_m) =20 -/* Vector Iota Instruction */ +/* + * Vector Iota Instruction + * + * 1. The destination register cannot overlap the source register. + * 2. If masked, cannot overlap the mask register ('v0'). + * 3. An illegal instruction exception is raised if vstart is non-zero. + */ static bool trans_viota_m(DisasContext *s, arg_viota_m *a) { if (require_rvv(s) && vext_check_isa_ill(s) && - require_noover(a->rd, s->lmul, a->rs2, 0) && + !is_overlapped(a->rd, 1 << MAX(s->lmul, 0), a->rs2, 1) && require_vm(a->vm, a->rd) && require_align(a->rd, s->lmul)) { uint32_t data =3D 0; --=20 2.17.1