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