scheduling (partly)
asts (partly)
timing (partly)
event flags, both local and common (partly)
process control and communication (partly)
logicals (partly)
fork (partly)
queued i/o (a little bit)
memory management (a little bit)
ods2 readonly (partly)
rms readonly (partly)
ods5 readonly (partly)
xqp (barely)
sca/scs/cluster (barely)
locks/dlm (barely)
cwps (forcex only)

syscalls/services:
$ascefc
$asctim
$assign
$bintim
$clref
$close
$connect
$create
$create_region_32
$crelnm
$crelnt
$crmpsc
$dclast
$disconnect
$display
$enq
$erase
$extend
$forcex
$get
$gettim
$hiber
$mgblsc
$mount
$numtim
$open
$parse
$put
$qio
$qiow
$readef
$schdwk
$search
$setast
$setddir
$setef
$setime
$setimr
$setpri
$setprn
$synch
$trnlnm
$waitfr
$wake
some RMS syscalls

cli:
DCL

utilities:
backup
set process

librtl:
strings routines

loader:
srm
