1*25c28e83SPiotr Jasiukajtis/* 2*25c28e83SPiotr Jasiukajtis * CDDL HEADER START 3*25c28e83SPiotr Jasiukajtis * 4*25c28e83SPiotr Jasiukajtis * The contents of this file are subject to the terms of the 5*25c28e83SPiotr Jasiukajtis * Common Development and Distribution License (the "License"). 6*25c28e83SPiotr Jasiukajtis * You may not use this file except in compliance with the License. 7*25c28e83SPiotr Jasiukajtis * 8*25c28e83SPiotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*25c28e83SPiotr Jasiukajtis * or http://www.opensolaris.org/os/licensing. 10*25c28e83SPiotr Jasiukajtis * See the License for the specific language governing permissions 11*25c28e83SPiotr Jasiukajtis * and limitations under the License. 12*25c28e83SPiotr Jasiukajtis * 13*25c28e83SPiotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each 14*25c28e83SPiotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*25c28e83SPiotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the 16*25c28e83SPiotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying 17*25c28e83SPiotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner] 18*25c28e83SPiotr Jasiukajtis * 19*25c28e83SPiotr Jasiukajtis * CDDL HEADER END 20*25c28e83SPiotr Jasiukajtis */ 21*25c28e83SPiotr Jasiukajtis/* 22*25c28e83SPiotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 23*25c28e83SPiotr Jasiukajtis */ 24*25c28e83SPiotr Jasiukajtis/* 25*25c28e83SPiotr Jasiukajtis * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 26*25c28e83SPiotr Jasiukajtis * Use is subject to license terms. 27*25c28e83SPiotr Jasiukajtis */ 28*25c28e83SPiotr Jasiukajtis 29*25c28e83SPiotr Jasiukajtis .file "acosl.s" 30*25c28e83SPiotr Jasiukajtis 31*25c28e83SPiotr Jasiukajtis#include "libm.h" 32*25c28e83SPiotr JasiukajtisLIBM_ANSI_PRAGMA_WEAK(acosl,function) 33*25c28e83SPiotr Jasiukajtis 34*25c28e83SPiotr Jasiukajtis ENTRY(acosl) 35*25c28e83SPiotr Jasiukajtis fldt 8(%rsp) / push x 36*25c28e83SPiotr Jasiukajtis fld1 / push 1 37*25c28e83SPiotr Jasiukajtis fld %st(1) / x , 1 , x 38*25c28e83SPiotr Jasiukajtis fabs / |x| , 1 , x 39*25c28e83SPiotr Jasiukajtis fucomip %st(1),%st 40*25c28e83SPiotr Jasiukajtis ja 9f 41*25c28e83SPiotr Jasiukajtis fadd %st(1),%st / 1+x,x 42*25c28e83SPiotr Jasiukajtis fldz 43*25c28e83SPiotr Jasiukajtis fucomip %st(1),%st 44*25c28e83SPiotr Jasiukajtis jp .L1 45*25c28e83SPiotr Jasiukajtis jne .L1 46*25c28e83SPiotr Jasiukajtis / x is -1 47*25c28e83SPiotr Jasiukajtis fstp %st(0) / -1 48*25c28e83SPiotr Jasiukajtis fstp %st(0) / empty NPX stack 49*25c28e83SPiotr Jasiukajtis fldpi 50*25c28e83SPiotr Jasiukajtis ret 51*25c28e83SPiotr Jasiukajtis.L1: 52*25c28e83SPiotr Jasiukajtis fxch %st(1) / x,1+x 53*25c28e83SPiotr Jasiukajtis fld1 / 1,x,1+x 54*25c28e83SPiotr Jasiukajtis fsubp %st,%st(1) / 1-x,1+x 55*25c28e83SPiotr Jasiukajtis fdivp %st,%st(1) / (1-x)/(1+x) 56*25c28e83SPiotr Jasiukajtis fsqrt 57*25c28e83SPiotr Jasiukajtis fld1 / 1,sqrt((1-x)/(1+x)) 58*25c28e83SPiotr Jasiukajtis fpatan 59*25c28e83SPiotr Jasiukajtis fadd %st(0),%st 60*25c28e83SPiotr Jasiukajtis ret 61*25c28e83SPiotr Jasiukajtis9: 62*25c28e83SPiotr Jasiukajtis / |x| > 1 63*25c28e83SPiotr Jasiukajtis fstp %st(0) / x 64*25c28e83SPiotr Jasiukajtis fsub %st,%st(0) / +/-0 or NaN+invalid 65*25c28e83SPiotr Jasiukajtis fdiv %st,%st(0) / NaN+invalid or NaN 66*25c28e83SPiotr Jasiukajtis ret 67*25c28e83SPiotr Jasiukajtis .align 16 68*25c28e83SPiotr Jasiukajtis SET_SIZE(acosl) 69