/* * Copyright (c) 1992 Helsinki University of Technology * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * HELSINKI UNIVERSITY OF TECHNOLOGY ALLOWS FREE USE OF THIS SOFTWARE IN * ITS "AS IS" CONDITION. HELSINKI UNIVERSITY OF TECHNOLOGY DISCLAIMS ANY * LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE * USE OF THIS SOFTWARE. */ /* * HISTORY * 29-Apr-92 Johannes Helander (jvh) at Helsinki University of Technology * Created. * * $Id: Ovfork.S,v 1.2 1994/03/07 23:20:38 phil Exp $ */ #include "SYS.h" /* * r0 = pid of child in parent / pid of parent in child * r1 = 0 in parent, 1 in child */ SYSCALL(vfork) cmpqd 0,r1 beq parent movqd 0,r0 parent: ret 0