NetBSD/lib/libc/arch/powerpc/sys/fork.S

16 lines
333 B
ArmAsm

/* $NetBSD: fork.S,v 1.2 1998/05/25 15:28:03 ws 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)
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
blr