/* $OpenBSD: moddi3.c,v 1.2 1997/11/07 15:56:45 niklas Exp $ */ /* $NetBSD: moddi3.c,v 1.5 1995/10/07 09:26:31 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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[] = "@(#)moddi3.c 8.1 (Berkeley) 6/4/93"; #else static char rcsid[] = "$OpenBSD: moddi3.c,v 1.2 1997/11/07 15:56:45 niklas Exp $"; #endif #endif /* LIBC_SCCS and not lint */ #include "quad.h" /* * Return remainder after dividing two signed quads. * * XXX * If -1/2 should produce -1 on this machine, this code is wrong. */ quad_t __moddi3(a, b) quad_t a, b; { u_quad_t ua, ub, ur; 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; (void)__qdivrem(ua, ub, &ur); return (neg ? -ur : ur); }