1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1988 AT&T	*/
28/*	  All Rights Reserved  	*/
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include	"lint.h"
33#include	<sys/types.h>
34#include	<sys/dl.h>
35#include	"libc.h"
36
37dl_t
38ldivide(dl_t lop, dl_t rop)
39{
40	int		cnt;
41	dl_t		ans;
42	dl_t		tmp;
43	dl_t		div;
44
45	if (lsign(lop))
46		lop = lsub(lzero, lop);
47	if (lsign(rop))
48		rop = lsub(lzero, rop);
49
50	ans = lzero;
51	div = lzero;
52
53	for (cnt = 0; cnt < 63; cnt++) {
54		div = lshiftl(div, 1);
55		lop = lshiftl(lop, 1);
56		if (lsign(lop))
57			div.dl_lop |= 1;
58		tmp = lsub(div, rop);
59		ans = lshiftl(ans, 1);
60		if (lsign(tmp) == 0) {
61			ans.dl_lop |= 1;
62			div = tmp;
63		}
64	}
65
66	return (ans);
67}
68