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.
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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 2005 Sun Microsystems, Inc. All rights reserved.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * Use is subject to license terms.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis */
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis .file "hypotf.s"
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis#include "libm.h"
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr JasiukajtisLIBM_ANSI_PRAGMA_WEAK(hypotf,function)
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis#include "libm_protos.h"
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis ENTRY(hypotf)
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis movl 4(%esp),%eax / eax <-- x
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis andl $0x7fffffff,%eax / eax <-- |x|
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis jz .return_abs_y / if x = +/-0, return |y|
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis subl $0x7f800000,%eax / eax <-- |x| - INF
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis jz .return_abs_x / if x = +/-INF, return |x|
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis movl 8(%esp),%eax / eax <-- y
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis andl $0x7fffffff,%eax / eax <-- |y|
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis jz .return_abs_x / if y = +/-0, return |x|
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis subl $0x7f800000,%eax / eax <-- |y| - INF
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis.return_abs_y:
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis flds 8(%esp) / y
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis jz .take_abs / if y = +/-INF, return |y|
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fmul %st(0),%st / y*y
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis flds 4(%esp) / x,y*y
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fmul %st(0),%st / x*x,y*y
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis faddp %st,%st(1) / x*x+y*y
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fsqrt / sqrt(x*x+y*y)
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis subl $4,%esp
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fstps (%esp) / round to single
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis flds (%esp)
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fwait
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis addl $4,%esp
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis ret
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis.return_abs_x:
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis / returns |x|
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis flds 4(%esp)
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis.take_abs:
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis fabs
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis ret
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis .align 4
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis SET_SIZE(hypotf)