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/* $NetBSD: fork.S,v 1.2 2014/08/23 02:24:22 matt Exp $ */
/*
* pid = fork();
*
* r4 == 0 in parent process, 1 in child process.
* r3 == pid of child in parent, pid of parent in child.
*/
#include "SYS.h"
_SYSCALL(__fork,fork)
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
END(__fork)
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