153442Sbostic /*- 253442Sbostic * Copyright (c) 1992 The Regents of the University of California. 353442Sbostic * All rights reserved. 453442Sbostic * 5*53794Sbostic * This software was developed by the Computer Systems Engineering group 6*53794Sbostic * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 7*53794Sbostic * contributed to Berkeley. 8*53794Sbostic * 953442Sbostic * %sccs.include.redist.c% 1053442Sbostic */ 1153442Sbostic 1253442Sbostic #if defined(LIBC_SCCS) && !defined(lint) 13*53794Sbostic static char sccsid[] = "@(#)moddi3.c 5.3 (Berkeley) 06/02/92"; 1453442Sbostic #endif /* LIBC_SCCS and not lint */ 1553442Sbostic 16*53794Sbostic #include "quad.h" 1753459Sbostic 18*53794Sbostic /* 19*53794Sbostic * Return remainder after dividing two signed quads. 20*53794Sbostic * 21*53794Sbostic * XXX 22*53794Sbostic * If -1/2 should produce -1 on this machine, this code is wrong. 23*53794Sbostic */ 24*53794Sbostic quad 25*53794Sbostic __moddi3(quad a, quad b) 26*53794Sbostic { 27*53794Sbostic u_quad ua, ub, ur; 28*53794Sbostic int neg; 2953459Sbostic 30*53794Sbostic if (a < 0) 31*53794Sbostic ua = -(u_quad)a, neg = 1; 32*53794Sbostic else 33*53794Sbostic ua = a, neg = 0; 34*53794Sbostic if (b < 0) 35*53794Sbostic ub = -(u_quad)b, neg ^= 1; 36*53794Sbostic else 37*53794Sbostic ub = b; 38*53794Sbostic (void)__qdivmod(ua, ub, &ur); 39*53794Sbostic return (neg ? -ur : ur); 4053442Sbostic } 41