From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LWIOO-0002Uj-In for qemu-devel@nongnu.org; Sun, 08 Feb 2009 17:44:48 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LWIOK-0002Si-Nw for qemu-devel@nongnu.org; Sun, 08 Feb 2009 17:44:48 -0500 Received: from [199.232.76.173] (port=53544 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LWIOK-0002Sb-Hx for qemu-devel@nongnu.org; Sun, 08 Feb 2009 17:44:44 -0500 Received: from mx20.gnu.org ([199.232.41.8]:62978) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1LWIOK-0006tK-8i for qemu-devel@nongnu.org; Sun, 08 Feb 2009 17:44:44 -0500 Received: from mail.codesourcery.com ([65.74.133.4]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1LWIOI-0005k8-QL for qemu-devel@nongnu.org; Sun, 08 Feb 2009 17:44:43 -0500 Date: Sun, 8 Feb 2009 14:44:42 -0800 From: Nathan Froyd Subject: Re: [Qemu-devel] [PATCH 14/14] Add vrsqrtefp instruction Message-ID: <20090208224442.GT15286@codesourcery.com> References: <1232657054-30100-1-git-send-email-froydnj@codesourcery.com> <1232657054-30100-15-git-send-email-froydnj@codesourcery.com> <20090204135640.GV25125@hall.aurel32.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090204135640.GV25125@hall.aurel32.net> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Use float32_one constant to avoid repeated conversions. Let the softfloat code handle any special cases. Signed-off-by: Nathan Froyd --- target-ppc/helper.h | 1 + target-ppc/op_helper.c | 11 +++++++++++ target-ppc/translate.c | 1 + 3 files changed, 13 insertions(+), 0 deletions(-) diff --git a/target-ppc/helper.h b/target-ppc/helper.h index 00a573c..85cdd23 100644 --- a/target-ppc/helper.h +++ b/target-ppc/helper.h @@ -245,6 +245,7 @@ DEF_HELPER_3(vsubfp, void, avr, avr, avr) DEF_HELPER_3(vmaxfp, void, avr, avr, avr) DEF_HELPER_3(vminfp, void, avr, avr, avr) DEF_HELPER_2(vrefp, void, avr, avr) +DEF_HELPER_2(vrsqrtefp, void, avr, avr) DEF_HELPER_4(vmaddfp, void, avr, avr, avr, avr) DEF_HELPER_4(vnmsubfp, void, avr, avr, avr, avr) DEF_HELPER_2(vlogefp, void, avr, avr) diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c index 0e78e23..3afd217 100644 --- a/target-ppc/op_helper.c +++ b/target-ppc/op_helper.c @@ -2707,6 +2707,17 @@ VROTATE(h, u16) VROTATE(w, u32) #undef VROTATE +void helper_vrsqrtefp (ppc_avr_t *r, ppc_avr_t *b) +{ + int i; + for (i = 0; i < ARRAY_SIZE(r->f); i++) { + HANDLE_NAN1(r->f[i], b->f[i]) { + float32 t = float32_sqrt(b->f[i], &env->vec_status); + r->f[i] = float32_div(float32_one, t, &env->vec_status); + } + } +} + void helper_vsel (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) { r->u64[0] = (a->u64[0] & ~c->u64[0]) | (b->u64[0] & c->u64[0]); diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 46bd177..048bb54 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -6477,6 +6477,7 @@ GEN_VXFORM_NOA(vupklsh, 7, 11); GEN_VXFORM_NOA(vupkhpx, 7, 13); GEN_VXFORM_NOA(vupklpx, 7, 15); GEN_VXFORM_NOA(vrefp, 5, 4); +GEN_VXFORM_NOA(vrsqrtefp, 5, 5); GEN_VXFORM_NOA(vlogefp, 5, 7); GEN_VXFORM_NOA(vrfim, 5, 8); GEN_VXFORM_NOA(vrfin, 5, 9); -- 1.6.0.5