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dkim=pass reason="pass (just generated, assumed good)" header.d=opensource.wdc.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d= opensource.wdc.com; h=content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:subject:to :from; s=dkim; t=1650523056; x=1653115057; bh=Z0bcwNN6HlsL1bsaGz bPna1G2EFlJ2LfVwXnwKyKZhQ=; b=XqnKWbg07CtFvXh+dJTA0gmOiAlsBqNDCg DvqoLK4RlBy3KmrJE9lUreqkgFE5Wko8xKJ95Zo88W7FW5jQU55vmTga7zjHUEb8 zDdf0NefQCA1eToIS+Jz3kLq8u2+UfAdYHOHnw6VEVr73vW1rIdUVeNAYU4gj0YX ehFhP3Y4goLynR8FGrMgYzBVqNOlmd3MZMoRoReJ1B12Bb2m9yL4kJdogEFFiwmY IHD3s1xjPDWKdNGgRjhzulvEl17IZk9ueSlM6DP04m3pZKlQWqjt3FOkVsqRHGLy 3lgWsj4oGz+NZFkxCUVO7Y2XTKWHKdPRd9B4qtoY04GYyN4/M5Xw== X-Virus-Scanned: amavisd-new at usg-ed-osssrv.wdc.com From: Alistair Francis To: qemu-devel@nongnu.org Cc: alistair23@gmail.com, Weiwei Li , Junqiang Wang , Alistair Francis Subject: [PULL 16/31] target/riscv: fix start byte for vmvr.v when vstart != 0 Date: Thu, 21 Apr 2022 16:36:15 +1000 Message-Id: <20220421063630.1033608-17-alistair.francis@opensource.wdc.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220421063630.1033608-1-alistair.francis@opensource.wdc.com> References: <20220421063630.1033608-1-alistair.francis@opensource.wdc.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=68.232.143.124; envelope-from=prvs=10363b772=alistair.francis@opensource.wdc.com; helo=esa2.hgst.iphmx.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 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_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1650525379856100001 Content-Type: text/plain; charset="utf-8" From: Weiwei Li The spec for vmvr.v says: 'the instructions operate as if EEW=3DSEW, EMUL =3D NREG, effective length evl=3D EMUL * VLEN/SEW.' So the start byte for vstart !=3D 0 should take sew into account Signed-off-by: Weiwei Li Signed-off-by: Junqiang Wang Acked-by: Alistair Francis Message-Id: <20220330021316.18223-1-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis --- target/riscv/vector_helper.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 99f3134aa0..576b14e5a3 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -4890,13 +4890,15 @@ GEN_VEXT_VCOMPRESS_VM(vcompress_vm_d, uint64_t, H8) /* Vector Whole Register Move */ void HELPER(vmvr_v)(void *vd, void *vs2, CPURISCVState *env, uint32_t desc) { - /* EEW =3D 8 */ + /* EEW =3D SEW */ uint32_t maxsz =3D simd_maxsz(desc); - uint32_t i =3D env->vstart; + uint32_t sewb =3D 1 << FIELD_EX64(env->vtype, VTYPE, VSEW); + uint32_t startb =3D env->vstart * sewb; + uint32_t i =3D startb; =20 memcpy((uint8_t *)vd + H1(i), (uint8_t *)vs2 + H1(i), - maxsz - env->vstart); + maxsz - startb); =20 env->vstart =3D 0; } --=20 2.35.1