From nobody Sat Jul 12 15:47:07 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1486017812626803.753035220825; Wed, 1 Feb 2017 22:43:32 -0800 (PST) Received: from localhost ([::1]:54708 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cZB7C-0002Xs-Md for importer@patchew.org; Thu, 02 Feb 2017 01:43:30 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52721) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cZ9kH-0007xg-6M for qemu-devel@nongnu.org; Thu, 02 Feb 2017 00:15:54 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cZ9k9-0004Gl-4V for qemu-devel@nongnu.org; Thu, 02 Feb 2017 00:15:45 -0500 Received: from ozlabs.org ([103.22.144.67]:58123) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cZ9k8-0004DH-IX; Thu, 02 Feb 2017 00:15:36 -0500 Received: by ozlabs.org (Postfix, from userid 1007) id 3vDSqZ4QhKz9sN4; Thu, 2 Feb 2017 16:15:02 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1486012506; bh=1JkYWzHKi5KoF/GwaxdMynkSv/bC4znMpMDMdBsc4CA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fDMlaQSg7XV2KEJ7DcRwMST8ot92Fje0lL5FcycWwtViCv+rBUbxRdrx4tntFu1hT Ci+M78hGbiVtsa+ONCnBNoepxIP0lx3JGJ58/fL+gIU4uC0FNb48PBnNWwQDdeK2Kh SbrG4mfUfNTjDXC0+3twuRDvtwzYlxqkaRGHcWc4= From: David Gibson To: peter.maydell@linaro.org Date: Thu, 2 Feb 2017 16:14:27 +1100 Message-Id: <20170202051445.5735-90-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170202051445.5735-1-david@gibson.dropbear.id.au> References: <20170202051445.5735-1-david@gibson.dropbear.id.au> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 103.22.144.67 Subject: [Qemu-devel] [PULL 089/107] target-ppc: Add xsdivqp instruction 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: lvivier@redhat.com, thuth@redhat.com, Nikunj A Dadhania , qemu-devel@nongnu.org, mdroth@linux.vnet.ibm.com, agraf@suse.de, aik@ozlabs.ru, qemu-ppc@nongnu.org, Bharata B Rao , David Gibson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Bharata B Rao xsdivqp: VSX Scalar Divide Quad-Precision Signed-off-by: Bharata B Rao Signed-off-by: Nikunj A Dadhania Signed-off-by: David Gibson --- target/ppc/fpu_helper.c | 36 +++++++++++++++++++++++++++++++++= +++ target/ppc/helper.h | 1 + target/ppc/translate/vsx-impl.inc.c | 1 + target/ppc/translate/vsx-ops.inc.c | 1 + 4 files changed, 39 insertions(+) diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c index b9689b7..545bbbc 100644 --- a/target/ppc/fpu_helper.c +++ b/target/ppc/fpu_helper.c @@ -1981,6 +1981,42 @@ VSX_DIV(xsdivsp, 1, float64, VsrD(0), 1, 1) VSX_DIV(xvdivdp, 2, float64, VsrD(i), 0, 0) VSX_DIV(xvdivsp, 4, float32, VsrW(i), 0, 0) =20 +void helper_xsdivqp(CPUPPCState *env, uint32_t opcode) +{ + ppc_vsr_t xt, xa, xb; + + getVSR(rA(opcode) + 32, &xa, env); + getVSR(rB(opcode) + 32, &xb, env); + getVSR(rD(opcode) + 32, &xt, env); + + if (unlikely(Rc(opcode) !=3D 0)) { + /* TODO: Support xsdivqpo after round-to-odd is implemented */ + abort(); + } + + helper_reset_fpstatus(env); + float_status tstat =3D env->fp_status; + set_float_exception_flags(0, &tstat); + xt.f128 =3D float128_div(xa.f128, xb.f128, &tstat); + env->fp_status.float_exception_flags |=3D tstat.float_exception_flags; + + if (unlikely(tstat.float_exception_flags & float_flag_invalid)) { + if (float128_is_infinity(xa.f128) && float128_is_infinity(xb.f128)= ) { + float_invalid_op_excp(env, POWERPC_EXCP_FP_VXIDI, 1); + } else if (float128_is_zero(xa.f128) && + float128_is_zero(xb.f128)) { + float_invalid_op_excp(env, POWERPC_EXCP_FP_VXZDZ, 1); + } else if (float128_is_signaling_nan(xa.f128, &tstat) || + float128_is_signaling_nan(xb.f128, &tstat)) { + float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1); + } + } + + helper_compute_fprf_float128(env, xt.f128); + putVSR(rD(opcode) + 32, &xt, env); + float_check_status(env); +} + /* VSX_RE - VSX floating point reciprocal estimate * op - instruction mnemonic * nels - number of elements (1, 2 or 4) diff --git a/target/ppc/helper.h b/target/ppc/helper.h index 13142e0..71bf182 100644 --- a/target/ppc/helper.h +++ b/target/ppc/helper.h @@ -404,6 +404,7 @@ DEF_HELPER_2(xsaddqp, void, env, i32) DEF_HELPER_2(xssubdp, void, env, i32) DEF_HELPER_2(xsmuldp, void, env, i32) DEF_HELPER_2(xsdivdp, void, env, i32) +DEF_HELPER_2(xsdivqp, void, env, i32) DEF_HELPER_2(xsredp, void, env, i32) DEF_HELPER_2(xssqrtdp, void, env, i32) DEF_HELPER_2(xsrsqrtedp, void, env, i32) diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx= -impl.inc.c index 37004a4..38fab01 100644 --- a/target/ppc/translate/vsx-impl.inc.c +++ b/target/ppc/translate/vsx-impl.inc.c @@ -781,6 +781,7 @@ GEN_VSX_HELPER_2(xsaddqp, 0x04, 0x00, 0, PPC2_ISA300) GEN_VSX_HELPER_2(xssubdp, 0x00, 0x05, 0, PPC2_VSX) GEN_VSX_HELPER_2(xsmuldp, 0x00, 0x06, 0, PPC2_VSX) GEN_VSX_HELPER_2(xsdivdp, 0x00, 0x07, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xsdivqp, 0x04, 0x11, 0, PPC2_ISA300) GEN_VSX_HELPER_2(xsredp, 0x14, 0x05, 0, PPC2_VSX) GEN_VSX_HELPER_2(xssqrtdp, 0x16, 0x04, 0, PPC2_VSX) GEN_VSX_HELPER_2(xsrsqrtedp, 0x14, 0x04, 0, PPC2_VSX) diff --git a/target/ppc/translate/vsx-ops.inc.c b/target/ppc/translate/vsx-= ops.inc.c index 6b6b828..c1164c3 100644 --- a/target/ppc/translate/vsx-ops.inc.c +++ b/target/ppc/translate/vsx-ops.inc.c @@ -196,6 +196,7 @@ GEN_XX3FORM(xsaddsp, 0x00, 0x00, PPC2_VSX207), GEN_XX3FORM(xssubsp, 0x00, 0x01, PPC2_VSX207), GEN_XX3FORM(xsmulsp, 0x00, 0x02, PPC2_VSX207), GEN_XX3FORM(xsdivsp, 0x00, 0x03, PPC2_VSX207), +GEN_VSX_XFORM_300(xsdivqp, 0x04, 0x11, 0x0), GEN_XX2FORM(xsresp, 0x14, 0x01, PPC2_VSX207), GEN_XX2FORM(xsrsp, 0x12, 0x11, PPC2_VSX207), GEN_XX2FORM(xssqrtsp, 0x16, 0x00, PPC2_VSX207), --=20 2.9.3