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/*	$NetBSD: Ovfork.S,v 1.4 2002/07/30 06:07:59 matt Exp $	*/

/*
 * pid = vfork();
 *
 * r4 == 0 in parent process, 1 in child process.
 * r3 == pid of child in parent, pid of parent in child.
 */

#include "SYS.h"

WARN_REFERENCES(vfork, \
    "warning: reference to compatibility vfork(); include <unistd.h> for correct reference")

SYSCALL(vfork)
	addi	%r4,%r4,-1	# from 1 to 0 in child, 0 to -1 in parent
	and	%r3,%r3,%r4	# return 0 in child, pid in parent
	blr