| dec | hex | Name of function | exist in |
| 0 | 0x00 | Getmpb | TOS |
| 1 | 0x01 | Bconstat | TOS |
| 2 | 0x02 | Bconin | TOS |
| 3 | 0x03 | Bconout | TOS |
| 4 | 0x04 | Rwabs | TOS |
| 5 | 0x05 | Setexc | TOS |
| 6 | 0x06 | Tickcal | TOS |
| 7 | 0x07 | Getbpb | TOS |
| 8 | 0x08 | Bcostat | TOS |
| 9 | 0x09 | Mediach | TOS |
| 10 | 0x0A | Drvmap | TOS |
| 11 | 0x0B | Kbshift | TOS |
| 12 | 0x0C | Write_ASC | xVT52; ST-Computer 1988-04 |
| 12 | 0x0C | Lrwabs | ?, no information |
| 16 | 0x10 | ScReset | DOLMEN, SCSI function |
| 17 | 0x11 | ?? | DIAB630? |
| 17 | 0x11 | date_time | PC GEMDOS, internal BIOS function |
| EmuTOS until version 0.7 | |||
| 17 | 0x11 | ScGet | DOLMEN, SCSI function |
| 18 | 0x12 | ScSelect | DOLMEN, SCSI function |
| 19 | 0x13 | ScCmd | DOLMEN, SCSI function |
| 20 | 0x14 | ScComplete | DOLMEN, SCSI function |
| 21 | 0x15 | ScRead | DOLMEN, SCSI function |
| 22 | 0x16 | ScWrite | DOLMEN, SCSI function |
| 23 | 0x17 | ScReadDma | DOLMEN, SCSI function |
| 24 | 0x18 | ScWriteDma | DOLMEN, SCSI function |
| 25 | 0x19 | ScReadBack | DOLMEN, SCSI function |
| 26 | 0x1A | ScWriteBack | DOLMEN, SCSI function |
| 27 | 0x1B | ScStat | DOLMEN, SCSI function |
| 28 | 0x1C | ScSelAtn | DOLMEN, SCSI function |
| 29 | 0x1D | ScMsgIn | DOLMEN, SCSI function |
| 30 | 0x1E | scMsgOut | DOLMEN, SCSI function |
| 32 | 0x20 | AtaReset | DOLMEN, IDE function |
| 121 | 0x79 | VT_DRV | Videotext-Decoder (Print-Technik) |
| 132 | 0x84 | Bforce | ST-Computer 1991-07, Page 78 ff. |
| 300 | 0x12c | bsim_id | Drive B Simulator |
| 301 | 0x12d | load_disk | Drive B Simulator |
| 302 | 0x12e | kill_disk | Drive B Simulator |
| 303 | 0x12f | save_disk | Drive B Simulator |
| 304 | 0x130 | drv_change | Drive B Simulator |
| 305 | 0x131 | drvprotec | Drive B Simulator |
| 306 | 0x132 | dstate | Drive B Simulator |