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/* $OpenBSD: divdi3.c,v 1.4 2004/08/07 00:38:32 deraadt Exp $ */
/* $NetBSD: divdi3.c,v 1.5 1995/10/07 09:26:24 mycroft Exp $ */
/*-
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)divdi3.c 8.1 (Berkeley) 6/4/93";
#else
static char rcsid[] = "$OpenBSD: divdi3.c,v 1.4 2004/08/07 00:38:32 deraadt Exp $";
#endif
#endif /* LIBC_SCCS and not lint */
#include "quad.h"
/*
* Divide two signed quads.
* ??? if -1/2 should produce -1 on this machine, this code is wrong
*/
quad_t
__divdi3(quad_t a, quad_t b)
{
u_quad_t ua, ub, uq;
int neg;
if (a < 0)
ua = -(u_quad_t)a, neg = 1;
else
ua = a, neg = 0;
if (b < 0)
ub = -(u_quad_t)b, neg ^= 1;
else
ub = b;
uq = __qdivrem(ua, ub, (u_quad_t *)0);
return (neg ? -uq : uq);
}
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