17 lines
363 B
ArmAsm
17 lines
363 B
ArmAsm
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/* $NetBSD: fork.S,v 1.6 2011/01/15 07:31:13 matt Exp $ */
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/*
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* pid = fork();
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*
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* r4 == 0 in parent process, 1 in child process.
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* r3 == pid of child in parent, pid of parent in child.
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*/
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#include "SYS.h"
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_SYSCALL(__fork,fork)
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addi %r4,%r4,-1 # from 1 to 0 in child, 0 to -1 in parent
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and %r3,%r3,%r4 # return 0 in child, pid in parent
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blr
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END(__fork)
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