1 /*- 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This software was developed by the Computer Systems Engineering group 6 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 7 * contributed to Berkeley. 8 * 9 * %sccs.include.redist.c% 10 */ 11 12 #if defined(LIBC_SCCS) && !defined(lint) 13 static char sccsid[] = "@(#)divdi3.c 8.1 (Berkeley) 06/04/93"; 14 #endif /* LIBC_SCCS and not lint */ 15 16 #include "quad.h" 17 18 /* 19 * Divide two signed quads. 20 * ??? if -1/2 should produce -1 on this machine, this code is wrong 21 */ 22 quad_t 23 __divdi3(a, b) 24 quad_t a, b; 25 { 26 u_quad_t ua, ub, uq; 27 int neg; 28 29 if (a < 0) 30 ua = -(u_quad_t)a, neg = 1; 31 else 32 ua = a, neg = 0; 33 if (b < 0) 34 ub = -(u_quad_t)b, neg ^= 1; 35 else 36 ub = b; 37 uq = __qdivrem(ua, ub, (u_quad_t *)0); 38 return (neg ? -uq : uq); 39 } 40