25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis/*
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * CDDL HEADER START
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis *
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * The contents of this file are subject to the terms of the
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * Common Development and Distribution License (the "License").
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * You may not use this file except in compliance with the License.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis *
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * or http://www.opensolaris.org/os/licensing.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * See the License for the specific language governing permissions
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * and limitations under the License.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis *
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner]
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis *
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * CDDL HEADER END
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis */
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis/*
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis */
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis/*
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * Use is subject to license terms.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis */
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis .file "asin.s"
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis#include "libm.h"
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr JasiukajtisLIBM_ANSI_PRAGMA_WEAK(asin,function)
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis#include "libm_protos.h"
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis ENTRY(asin)
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fldl 4(%esp) / push x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fld1 / push 1
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fld %st(1) / x , 1 , x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fabs / |x| , 1 , x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fucomp
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fstsw %ax
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis sahf
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis ja .ERR
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fadd %st(1),%st / 1+x,x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fld1 / 1,1+x,x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fsub %st(2),%st / 1-x,1+x,x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fmulp %st,%st(1) / (1-x)*(1+x),x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fsqrt / sqrt((1-x)/(1+x)),x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fpatan / atan(x/sqrt((1-x)/(1+x)))
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis ret
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis.ERR:
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis / |x| > 1
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis pushl %ebp
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis movl %esp,%ebp
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis PIC_SETUP(1)
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fstp %st(0) / x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fstp %st(0) / empty NPX stack
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis pushl $2
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis pushl 12(%ebp) / high x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis pushl 8(%ebp) / low x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis pushl 12(%ebp) / high x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis pushl 8(%ebp) / low x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis call PIC_F(_SVID_libm_err) / report SVID result/error
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis addl $20,%esp
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis PIC_WRAPUP
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis leave
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis ret
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis .align 4
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis SET_SIZE(asin)