3BSD/usr/include/sys.s

	.set	exit,1
	.set	fork,2
	.set	read,3
	.set	write,4
	.set	open,5
	.set	close,6
	.set	wait,7
	.set	creat,8
	.set	link,9
	.set	unlink,10
	.set	exec,11
	.set	chdir,12
	.set	time,13
	.set	mknod,14
	.set	chmod,15
	.set	chown,16
	.set	break,17
	.set	stat,18
	.set	lseek,19
	.set	getpid,20
	.set	mount,21
	.set	umount,22
	.set	setuid,23
	.set	getuid,24
	.set	stime,25
	.set	ptrace,26
	.set	alarm,27
	.set	fstat,28
	.set	pause,29
	.set	utime,30
	.set	smdate,30
	.set	stty,31
	.set	gtty,32
	.set	access,33
	.set	nice,34
	.set	sleep,35
	.set	sync,36
	.set	kill,37
	.set	switch,38
	.set	setpgrp,39
	.set	dup,41
	.set	pipe,42
	.set	times,43
	.set	prof,44
	.set	setgid,46
	.set	getgid,47
	.set	signal,48
#	USG 49
#	USG 50
	.set	acct,51
	.set	setphys,52
	.set	syslock,53
	.set	ioctl,54
	.set	reboot,55
	.set	mpx,56
#	USG 57
#	USG 58
	.set	setinf,59
	.set	umask,60