1*5d9d9091SRichard Lowe/* 2*5d9d9091SRichard Lowe * CDDL HEADER START 3*5d9d9091SRichard Lowe * 4*5d9d9091SRichard Lowe * The contents of this file are subject to the terms of the 5*5d9d9091SRichard Lowe * Common Development and Distribution License (the "License"). 6*5d9d9091SRichard Lowe * You may not use this file except in compliance with the License. 7*5d9d9091SRichard Lowe * 8*5d9d9091SRichard Lowe * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*5d9d9091SRichard Lowe * or http://www.opensolaris.org/os/licensing. 10*5d9d9091SRichard Lowe * See the License for the specific language governing permissions 11*5d9d9091SRichard Lowe * and limitations under the License. 12*5d9d9091SRichard Lowe * 13*5d9d9091SRichard Lowe * When distributing Covered Code, include this CDDL HEADER in each 14*5d9d9091SRichard Lowe * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*5d9d9091SRichard Lowe * If applicable, add the following below this CDDL HEADER, with the 16*5d9d9091SRichard Lowe * fields enclosed by brackets "[]" replaced with your own identifying 17*5d9d9091SRichard Lowe * information: Portions Copyright [yyyy] [name of copyright owner] 18*5d9d9091SRichard Lowe * 19*5d9d9091SRichard Lowe * CDDL HEADER END 20*5d9d9091SRichard Lowe */ 21*5d9d9091SRichard Lowe/* 22*5d9d9091SRichard Lowe * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 23*5d9d9091SRichard Lowe */ 24*5d9d9091SRichard Lowe/* 25*5d9d9091SRichard Lowe * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 26*5d9d9091SRichard Lowe * Use is subject to license terms. 27*5d9d9091SRichard Lowe */ 28*5d9d9091SRichard Lowe 29*5d9d9091SRichard Lowe .file "asinl.s" 30*5d9d9091SRichard Lowe 31*5d9d9091SRichard Lowe#include "libm.h" 32*5d9d9091SRichard LoweLIBM_ANSI_PRAGMA_WEAK(asinl,function) 33*5d9d9091SRichard Lowe 34*5d9d9091SRichard Lowe ENTRY(asinl) 35*5d9d9091SRichard Lowe fldt 8(%rsp) / push x 36*5d9d9091SRichard Lowe fld1 / push 1 37*5d9d9091SRichard Lowe fld %st(1) / x , 1 , x 38*5d9d9091SRichard Lowe fabs / |x| , 1 , x 39*5d9d9091SRichard Lowe fucomip %st(1),%st 40*5d9d9091SRichard Lowe ja 9f 41*5d9d9091SRichard Lowe fadd %st(1),%st / 1+x,x 42*5d9d9091SRichard Lowe fld1 / 1,1+x,x 43*5d9d9091SRichard Lowe fsub %st(2),%st / 1-x,1+x,x 44*5d9d9091SRichard Lowe fmulp %st,%st(1) / (1-x)*(1+x),x 45*5d9d9091SRichard Lowe fsqrt / sqrt((1-x)*(1+x)),x 46*5d9d9091SRichard Lowe fpatan / atan(x/sqrt((1-x)*(1+x))) 47*5d9d9091SRichard Lowe ret 48*5d9d9091SRichard Lowe9: 49*5d9d9091SRichard Lowe / |x| > 1 50*5d9d9091SRichard Lowe fstp %st(0) / x 51*5d9d9091SRichard Lowe fsub %st,%st(0) / +/-0 or NaN+invalid 52*5d9d9091SRichard Lowe fdiv %st,%st(0) / NaN+invalid or NaN 53*5d9d9091SRichard Lowe ret 54*5d9d9091SRichard Lowe .align 16 55*5d9d9091SRichard Lowe SET_SIZE(asinl) 56