xref: /minix/lib/libc/arch/m68k/hardfloat/cmpdf2.S (revision 0a6a1f1d)
1/*	$NetBSD: cmpdf2.S,v 1.3 2014/03/18 18:20:37 riastradh Exp $	*/
2
3/*-
4 * Copyright (c) 1990 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * the Systems Programming Group of the University of Utah Computer
9 * Science Department.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include <machine/asm.h>
37
38#if defined(LIBC_SCCS) && !defined(lint)
39#if 0
40	RCSID("from: @(#)cmpdf2.s	5.1 (Berkeley) 6/7/90")
41#else
42	RCSID("$NetBSD: cmpdf2.S,v 1.3 2014/03/18 18:20:37 riastradh Exp $")
43#endif
44#endif /* LIBC_SCCS and not lint */
45
46/* double > double: 1 */
47/* double < double: -1 */
48/* double == double: 0 */
49ENTRY(__cmpdf2)
50	fmoved	4(%sp),%fp0
51	fcmpd	12(%sp),%fp0
52	fbgt	Lbgt
53#ifdef __mcoldfire__
54	fbeq	Lbeq
55	movql	#-1,%d0
56#else
57	fslt	%d0
58	extbl	%d0
59#endif
60	rts
61Lbgt:
62	moveq	#1,%d0
63	rts
64#ifdef __mcoldfire__
65Lbeq:
66	clrl	%d0
67	rts
68#endif
69END(__cmpdf2)
70