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      1  1.8     matt /*	$NetBSD: fork.S,v 1.8 2013/07/16 22:15:55 matt Exp $	*/
      2  1.3  thorpej 
      3  1.1   paulus /*-
      4  1.1   paulus  * Copyright (c) 1990 The Regents of the University of California.
      5  1.1   paulus  * All rights reserved.
      6  1.1   paulus  *
      7  1.1   paulus  * This code is derived from software contributed to Berkeley by
      8  1.1   paulus  * the Systems Programming Group of the University of Utah Computer
      9  1.1   paulus  * Science Department.
     10  1.1   paulus  *
     11  1.1   paulus  * Redistribution and use in source and binary forms, with or without
     12  1.1   paulus  * modification, are permitted provided that the following conditions
     13  1.1   paulus  * are met:
     14  1.1   paulus  * 1. Redistributions of source code must retain the above copyright
     15  1.1   paulus  *    notice, this list of conditions and the following disclaimer.
     16  1.1   paulus  * 2. Redistributions in binary form must reproduce the above copyright
     17  1.1   paulus  *    notice, this list of conditions and the following disclaimer in the
     18  1.1   paulus  *    documentation and/or other materials provided with the distribution.
     19  1.7      agc  * 3. Neither the name of the University nor the names of its contributors
     20  1.1   paulus  *    may be used to endorse or promote products derived from this software
     21  1.1   paulus  *    without specific prior written permission.
     22  1.1   paulus  *
     23  1.1   paulus  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  1.1   paulus  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  1.1   paulus  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  1.1   paulus  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  1.1   paulus  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  1.1   paulus  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  1.1   paulus  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  1.1   paulus  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  1.1   paulus  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  1.1   paulus  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  1.1   paulus  * SUCH DAMAGE.
     34  1.1   paulus  */
     35  1.1   paulus 
     36  1.3  thorpej #include "SYS.h"
     37  1.3  thorpej 
     38  1.1   paulus #if defined(LIBC_SCCS) && !defined(lint)
     39  1.3  thorpej #if 0
     40  1.3  thorpej 	RCSID("from: @(#)fork.s	5.1 (Berkeley) 5/12/90")
     41  1.3  thorpej #else
     42  1.8     matt 	RCSID("$NetBSD: fork.S,v 1.8 2013/07/16 22:15:55 matt Exp $")
     43  1.3  thorpej #endif
     44  1.1   paulus #endif /* LIBC_SCCS and not lint */
     45  1.1   paulus 
     46  1.6  nathanw _SYSCALL(__fork,fork)
     47  1.4  thorpej 	subql	#1,%d1	/* from 1 to 0 in child, 0 to -1 in parent */
     48  1.4  thorpej 	andl	%d1,%d0
     49  1.1   paulus 	rts		/* pid = fork() */
     50  1.8     matt END(__fork)
     51