xref: /minix3/common/lib/libc/arch/arm/quad/__aeabi_ulcmp.c (revision f14fb602092e015ff630df58e17c2a9cd57d29b3)
1*f14fb602SLionel Sambuc /*-
2*f14fb602SLionel Sambuc  * Copyright (c) 2012 The NetBSD Foundation, Inc.
3*f14fb602SLionel Sambuc  * All rights reserved.
4*f14fb602SLionel Sambuc  *
5*f14fb602SLionel Sambuc  * This code is derived from software contributed to The NetBSD Foundation
6*f14fb602SLionel Sambuc  * by Matt Thomas of 3am Software Foundry.
7*f14fb602SLionel Sambuc  *
8*f14fb602SLionel Sambuc  * Redistribution and use in source and binary forms, with or without
9*f14fb602SLionel Sambuc  * modification, are permitted provided that the following conditions
10*f14fb602SLionel Sambuc  * are met:
11*f14fb602SLionel Sambuc  * 1. Redistributions of source code must retain the above copyright
12*f14fb602SLionel Sambuc  *    notice, this list of conditions and the following disclaimer.
13*f14fb602SLionel Sambuc  * 2. Redistributions in binary form must reproduce the above copyright
14*f14fb602SLionel Sambuc  *    notice, this list of conditions and the following disclaimer in the
15*f14fb602SLionel Sambuc  *    documentation and/or other materials provided with the distribution.
16*f14fb602SLionel Sambuc  *
17*f14fb602SLionel Sambuc  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18*f14fb602SLionel Sambuc  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19*f14fb602SLionel Sambuc  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20*f14fb602SLionel Sambuc  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21*f14fb602SLionel Sambuc  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22*f14fb602SLionel Sambuc  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23*f14fb602SLionel Sambuc  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24*f14fb602SLionel Sambuc  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25*f14fb602SLionel Sambuc  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26*f14fb602SLionel Sambuc  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27*f14fb602SLionel Sambuc  * POSSIBILITY OF SUCH DAMAGE.
28*f14fb602SLionel Sambuc  */
29*f14fb602SLionel Sambuc #include <sys/cdefs.h>
30*f14fb602SLionel Sambuc 
31*f14fb602SLionel Sambuc __RCSID("$NetBSD: __aeabi_ulcmp.c,v 1.2 2012/08/06 02:15:51 matt Exp $");
32*f14fb602SLionel Sambuc 
33*f14fb602SLionel Sambuc #include "quad.h"
34*f14fb602SLionel Sambuc #include <arm/aeabi.h>
35*f14fb602SLionel Sambuc 
36*f14fb602SLionel Sambuc /*
37*f14fb602SLionel Sambuc  * Return -1, 0, 1 (like strcmp) if a [<, =, >] b
38*f14fb602SLionel Sambuc  */
39*f14fb602SLionel Sambuc int
__aeabi_ulcmp(unsigned long long a,unsigned long long b)40*f14fb602SLionel Sambuc __aeabi_ulcmp(unsigned long long a, unsigned long long b)
41*f14fb602SLionel Sambuc {
42*f14fb602SLionel Sambuc 	const union uu aa = { .uq = a }, bb = { .uq = b };
43*f14fb602SLionel Sambuc 
44*f14fb602SLionel Sambuc 	if (aa.ul[H] < bb.ul[H])
45*f14fb602SLionel Sambuc 		return -1;
46*f14fb602SLionel Sambuc 	if (aa.ul[H] > bb.ul[H])
47*f14fb602SLionel Sambuc 		return 1;
48*f14fb602SLionel Sambuc 
49*f14fb602SLionel Sambuc 	if (aa.ul[L] < bb.ul[L])
50*f14fb602SLionel Sambuc 		return -1;
51*f14fb602SLionel Sambuc 	if (aa.ul[L] > bb.ul[L])
52*f14fb602SLionel Sambuc 		return 1;
53*f14fb602SLionel Sambuc 
54*f14fb602SLionel Sambuc 	return 0;
55*f14fb602SLionel Sambuc }
56