3 OPEN
5 GET RECORD
7 GET CHARACTERS
8 PUT RECORD
11 PUT CHARACTERS
12 CLOSE
13 STATUS REQUEST
17 DRAW LINE
18 FILL
32 RENAME
33 DELETE
34 CREATE DIRECTORY (MyDOS)
34 LOCK DISK (SpartaDOS 2.3/3.2)
35 LOCK FILE
36 UNLOCK FILE
37 POINT
38 NOTE
39 GET FILE LENGTH (SpartaDOS)
40 LOAD BINARY FILE
41 SAVE BINARY FILE (Atari DOS, SpartaDOS 2.3/3.2)
41 CHANGE DIRECTORY (MyDOS)
42 CREATE DIRECTORY (SpartaDOS)
43 DELETE DIRECTORY (SpartaDOS)
44 CHANGE DIRECTORY (SpartaDOS)
45 SET BOOT FILE (SpartaDOS)
46 UNLOCK DISK (SpartaDOS 2.3/3.2)
49 SET FILE ATTRIBUTES (SpartaDOS X)
253 FORMAT SINGLE DENSITY (DOS 2.5)
254 FORMAT DISK (default format)