1*0d34bfa2Suebayasi/* $NetBSD: fork.S,v 1.10 2014/05/23 02:34:19 uebayasi Exp $ */ 21394f01bSchristos 30b9f5089Scgd/*- 40b9f5089Scgd * Copyright (c) 1990 The Regents of the University of California. 50b9f5089Scgd * All rights reserved. 60b9f5089Scgd * 70b9f5089Scgd * This code is derived from software contributed to Berkeley by 80b9f5089Scgd * William Jolitz. 90b9f5089Scgd * 100b9f5089Scgd * Redistribution and use in source and binary forms, with or without 110b9f5089Scgd * modification, are permitted provided that the following conditions 120b9f5089Scgd * are met: 130b9f5089Scgd * 1. Redistributions of source code must retain the above copyright 140b9f5089Scgd * notice, this list of conditions and the following disclaimer. 150b9f5089Scgd * 2. Redistributions in binary form must reproduce the above copyright 160b9f5089Scgd * notice, this list of conditions and the following disclaimer in the 170b9f5089Scgd * documentation and/or other materials provided with the distribution. 18eb7c1594Sagc * 3. Neither the name of the University nor the names of its contributors 190b9f5089Scgd * may be used to endorse or promote products derived from this software 200b9f5089Scgd * without specific prior written permission. 210b9f5089Scgd * 220b9f5089Scgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 230b9f5089Scgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 240b9f5089Scgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 250b9f5089Scgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 260b9f5089Scgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 270b9f5089Scgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 280b9f5089Scgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 290b9f5089Scgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 300b9f5089Scgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 310b9f5089Scgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 320b9f5089Scgd * SUCH DAMAGE. 3344186168Sjtc * 3444186168Sjtc * from: @(#)fork.s 5.1 (Berkeley) 4/23/90 350b9f5089Scgd */ 360b9f5089Scgd 371394f01bSchristos#include <machine/asm.h> 380b9f5089Scgd#if defined(SYSLIBC_SCCS) && !defined(lint) 39*0d34bfa2Suebayasi RCSID("$NetBSD: fork.S,v 1.10 2014/05/23 02:34:19 uebayasi Exp $") 400b9f5089Scgd#endif /* SYSLIBC_SCCS and not lint */ 410b9f5089Scgd 420b9f5089Scgd#include "SYS.h" 430b9f5089Scgd 444fb740b8Snathanw_SYSCALL(__fork,fork) 453463cb4eSmycroft decl %edx /* from 1 to 0 in child, 0 to -1 in parent */ 463463cb4eSmycroft andl %edx,%eax 470b9f5089Scgd ret /* pid = fork(); */ 48*0d34bfa2SuebayasiEND(__fork) 49