From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LQ6PV-00045B-VV for qemu-devel@nongnu.org; Thu, 22 Jan 2009 15:44:22 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LQ6PT-00043E-Lv for qemu-devel@nongnu.org; Thu, 22 Jan 2009 15:44:20 -0500 Received: from [199.232.76.173] (port=38016 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LQ6PT-000433-9C for qemu-devel@nongnu.org; Thu, 22 Jan 2009 15:44:19 -0500 Received: from mx20.gnu.org ([199.232.41.8]:40965) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1LQ6PS-0005KJ-Tu for qemu-devel@nongnu.org; Thu, 22 Jan 2009 15:44:19 -0500 Received: from mail.codesourcery.com ([65.74.133.4]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1LQ6PS-0005j7-A1 for qemu-devel@nongnu.org; Thu, 22 Jan 2009 15:44:18 -0500 From: Nathan Froyd Date: Thu, 22 Jan 2009 12:44:14 -0800 Message-Id: <1232657054-30100-15-git-send-email-froydnj@codesourcery.com> In-Reply-To: <1232657054-30100-1-git-send-email-froydnj@codesourcery.com> References: <1232657054-30100-1-git-send-email-froydnj@codesourcery.com> Subject: [Qemu-devel] [PATCH 14/14] Add vrsqrtefp instruction 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 Cc: Nathan Froyd Signed-off-by: Nathan Froyd --- target-ppc/helper.h | 1 + target-ppc/op_helper.c | 28 ++++++++++++++++++++++++++++ target-ppc/translate.c | 1 + 3 files changed, 30 insertions(+), 0 deletions(-) diff --git a/target-ppc/helper.h b/target-ppc/helper.h index 516cee0..179f077 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_2(vrfim, void, avr, avr) DEF_HELPER_2(vrfin, void, avr, avr) DEF_HELPER_2(vrfip, void, avr, avr) diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c index 8055e1a..4ef0b1c 100644 --- a/target-ppc/op_helper.c +++ b/target-ppc/op_helper.c @@ -2756,6 +2756,34 @@ 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]) { + if (float32_is_zero(b->f[i])) { + if (float32_is_neg(b->f[i])) { + /* Negative infinity */ + r->u32[i] = 0xff800000; + } else { + /* Positive infinity */ + r->u32[i] = 0x7f800000; + } + } else if (float32_is_neg(b->f[i])) { + /* Canonical QNaN */ + r->u32[i] = 0x7fc00000; + } else if (float32_is_infinity(b->f[i])) { + /* Negative infinity handled earlier */ + r->f[i] = float32_zero; + } else { + float32 one = int32_to_float32(1, &env->vec_status); + float32 t = float32_sqrt(b->f[i], &env->vec_status); + r->f[i] = float32_div(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 01a4f11..1c44c59 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(vrfim, 5, 8); GEN_VXFORM_NOA(vrfin, 5, 9); GEN_VXFORM_NOA(vrfip, 5, 10); -- 1.6.0.5