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/* $NetBSD: fork.S,v 1.3 2000/06/26 06:33:01 kleink 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"
#ifdef WEAK_ALIAS
WEAK_ALIAS(fork, _fork)
#endif
_SYSCALL(_fork,fork)
addi 4,4,-1 # from 1 to 0 in child, 0 to -1 in parent
and 3,3,4 # return 0 in child, pid in parent
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