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[114.34.229.221]) by smtp.gmail.com with ESMTPSA id p11sm7083709pjb.31.2021.02.25.19.22.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Feb 2021 19:22:09 -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=XgjH2u9lP18gtBmBV1mHCi8vvkP121obMj36G8LTMwVQa1CxoyEC40aDkn+DR7Wwte 2iMLq2ZxjGgoFlqPcJtmyoCvEy7ekI8kDbAytfqx0s5oK2PCwksxb52AB3kW/tmnS97J cR0zPU47LqXfVwNMXSvDbsaQoPtQZrQGZ4/9qKzqoT52qzRJXaQg+n6opxbqGRYcuqJT g2jkhDWqSDz9lGk7534mNbmnIGadaux85tnJaL9iGRg1wcVufPX2Uv/FeR11EgZCyEU1 qRMPa9ZXBkTzd6k4bZHhRi7IexTzTW7wxbRFdFbCsnjyM9vz2e7ylPfgcN0O3eTf7CUj rqzA== 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=F4myOXseumpk+c9wlMcZnmZGRxCTLfVXUaeplfuJJBoIIE2CYUWwAvGOyOpaDqTvYD 4hA4RDVKMNPsHFoAGPix/Tm2+A1heZ4Md9YBaj0OO/JrbkCw1++1zFQoy0AiqAd1FRV6 7snVfyAbe4H4/GcJGPuUoADVxLAI6zCUr8+XB8aCvsmEAz6cvAKvZW9zlgcOUMJ3OO06 T7c4V4QAflke2QdoshsYyjC18pETvWXy2CehXG7NzL41s1z5mbIwkv9v6oGslpLHM524 mkjFe9HQ/3w7OAxFT2P4qW7eVvk0dYcNAHBjXX9mVpLXR6JHw0D9AzD2P7O89bZEutg8 +WLA== X-Gm-Message-State: AOAM53101o9W1qc+Tijpw/YDBURHI6XBeSkitFvmY9+7hmkgvZFI4SlE EC5vw0nd2FblpTFK5Ob8Uxb1N9YUq7gLEw== X-Google-Smtp-Source: ABdhPJw6JWNK5dCU1O4e/l7drroUepbfHUQntkpBj98O8PKYflbnOYwFI8jxH35V8s3IhH4I9x1YEQ== X-Received: by 2002:a63:f808:: with SMTP id n8mr1007140pgh.115.1614309729446; Thu, 25 Feb 2021 19:22:09 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v7 31/75] target/riscv: rvv-1.0: iota instruction Date: Fri, 26 Feb 2021 11:18:15 +0800 Message-Id: <20210226031902.23656-32-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210226031902.23656-1-frank.chang@sifive.com> References: <20210226031902.23656-1-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::52d; envelope-from=frank.chang@sifive.com; helo=mail-pg1-x52d.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=ham 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