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Violators will be prosecuted; Fri, 3 Feb 2017 20:01:47 -0200 Received: from d24relay04.br.ibm.com (d24relay04.br.ibm.com [9.18.232.146]) by d24dlp02.br.ibm.com (Postfix) with ESMTP id 171B31DC0054; Fri, 3 Feb 2017 17:01:48 -0500 (EST) Received: from d24av01.br.ibm.com (d24av01.br.ibm.com [9.8.31.91]) by d24relay04.br.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v13M1lxp34013426; Fri, 3 Feb 2017 20:01:47 -0200 Received: from d24av01.br.ibm.com (localhost [127.0.0.1]) by d24av01.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v13M1kUF029567; Fri, 3 Feb 2017 20:01:46 -0200 Received: from pacoca.ibm.com ([9.85.131.14]) by d24av01.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id v13M1Zid029297; Fri, 3 Feb 2017 20:01:44 -0200 From: Jose Ricardo Ziviani To: qemu-ppc@nongnu.org Date: Fri, 3 Feb 2017 20:01:16 -0200 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1486159277-25949-1-git-send-email-joserz@linux.vnet.ibm.com> References: <1486159277-25949-1-git-send-email-joserz@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 17020322-0020-0000-0000-000002841233 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17020322-0021-0000-0000-0000309E30EE Message-Id: <1486159277-25949-4-git-send-email-joserz@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-02-03_15:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1612050000 definitions=main-1702030206 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH 3/4] ppc: implement xssqrtqp 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: qemu-devel@nongnu.org, nikunj@linux.vnet.ibm.com, david@gibson.dropbear.id.au 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" xssqrtqp: VSX Scalar Square Root Quad-Precision. Signed-off-by: Jose Ricardo Ziviani --- target/ppc/fpu_helper.c | 38 +++++++++++++++++++++++++++++++++= ++++ target/ppc/helper.h | 1 + target/ppc/translate/vsx-impl.inc.c | 1 + target/ppc/translate/vsx-ops.inc.c | 1 + 4 files changed, 41 insertions(+) diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c index e032363..46ec0ec 100644 --- a/target/ppc/fpu_helper.c +++ b/target/ppc/fpu_helper.c @@ -3393,3 +3393,41 @@ void helper_xsrqpxp(CPUPPCState *env, uint32_t opcod= e) float_check_status(env); } =20 +void helper_xssqrtqp(CPUPPCState *env, uint32_t opcode) +{ + ppc_vsr_t xb; + ppc_vsr_t xt; + float_status tstat; + + getVSR(rB(opcode) + 32, &xb, env); + memset(&xt, 0, sizeof(xt)); + helper_reset_fpstatus(env); + + if (unlikely(Rc(opcode) !=3D 0)) { + /* TODO: Support xsadddpo after round-to-odd is implemented */ + abort(); + } + + tstat =3D env->fp_status; + set_float_exception_flags(0, &tstat); + xt.f128 =3D float128_sqrt(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_signaling_nan(xb.f128, &tstat)) { + float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1); + xt.f128 =3D float128_snan_to_qnan(xb.f128); + } else if (float128_is_quiet_nan(xb.f128, &tstat)) { + xt.f128 =3D xb.f128; + } else if (float128_is_neg(xb.f128) && !float128_is_zero(xb.f128))= { + float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSQRT, 1); + set_snan_bit_is_one(0, &env->fp_status); + xt.f128 =3D float128_default_nan(&env->fp_status); + } + } + + helper_compute_fprf_float128(env, xt.f128); + putVSR(rD(opcode) + 32, &xt, env); + float_check_status(env); +} + diff --git a/target/ppc/helper.h b/target/ppc/helper.h index 9ce2e58..fbf80a7 100644 --- a/target/ppc/helper.h +++ b/target/ppc/helper.h @@ -461,6 +461,7 @@ DEF_HELPER_2(xsrdpip, void, env, i32) DEF_HELPER_2(xsrdpiz, void, env, i32) DEF_HELPER_2(xsrqpi, void, env, i32) DEF_HELPER_2(xsrqpxp, void, env, i32) +DEF_HELPER_2(xssqrtqp, void, env, i32) =20 DEF_HELPER_2(xsaddsp, void, env, i32) DEF_HELPER_2(xssubsp, void, env, i32) diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx= -impl.inc.c index 91be201..bbd7d1a 100644 --- a/target/ppc/translate/vsx-impl.inc.c +++ b/target/ppc/translate/vsx-impl.inc.c @@ -835,6 +835,7 @@ GEN_VSX_HELPER_XT_XB_ENV(xsrsp, 0x12, 0x11, 0, PPC2_VSX= 207) =20 GEN_VSX_HELPER_2(xsrqpi, 0x05, 0x00, 0, PPC2_ISA300) GEN_VSX_HELPER_2(xsrqpxp, 0x05, 0x01, 0, PPC2_ISA300) +GEN_VSX_HELPER_2(xssqrtqp, 0x04, 0x19, 0x1B, PPC2_ISA300) =20 GEN_VSX_HELPER_2(xsaddsp, 0x00, 0x00, 0, PPC2_VSX207) GEN_VSX_HELPER_2(xssubsp, 0x00, 0x01, 0, PPC2_VSX207) diff --git a/target/ppc/translate/vsx-ops.inc.c b/target/ppc/translate/vsx-= ops.inc.c index e58740b..bac3db2 100644 --- a/target/ppc/translate/vsx-ops.inc.c +++ b/target/ppc/translate/vsx-ops.inc.c @@ -115,6 +115,7 @@ GEN_VSX_XFORM_300_EO(name, opc2, opc3 | 0x18, opc4 | 0x= 1, inval) =20 GEN_VSX_Z23FORM_300(xsrqpi, 0x05, 0x0, 0x0, 0x0), GEN_VSX_Z23FORM_300(xsrqpxp, 0x05, 0x1, 0x0, 0x0), +GEN_VSX_XFORM_300_EO(xssqrtqp, 0x04, 0x19, 0x1B, 0x00000001), =20 GEN_XX2FORM(xsabsdp, 0x12, 0x15, PPC2_VSX), GEN_XX2FORM(xsnabsdp, 0x12, 0x16, PPC2_VSX), --=20 2.7.4