| Function | Address | Vector | Description |
|---|---|---|---|
| OSCLI | FFF7 | 208 | Pass string to the CLI |
This call provides the machine code user with a convenient method of performing any of the * commands that the system provides from Basic.
The command required is placed in a string as normal text terminated by a CR character and this call is made with the address in X & Y.
If the string passed to the CLI is not terminated by a carriage return within 255 bytes this routine has undefined effects.
The OS provides a default set of commands: (Note these have * in them but that is not necessary when passing the command to OSCLI)
| Command | Action | Available on | ||
|---|---|---|---|---|
| BBC | Master | Electron | ||
| *. | treated as *CAT command | X | X | X |
| */ | treated as *RUN command | X | X | X |
| *BASIC | Select BASIC as current language | X | X | X |
| *CAT | issue catalogue request to filing system | X | X | X |
| *CODE | passed to user vector | X | X | X |
| *EXEC | select text file as input stream | X | X | X |
| *FX | issue OSBYTE call, no returns possible | X | X | X |
| *HELP | issue page ROM service call 9 | X | X | X |
| *KEY | take rest of line as text for soft key | X | X | X |
| *LINE | passed to user vector | X | X | X |
| *LOAD | issue load request to filing system | X | X | X |
| *MOTOR | open/close cassette motor relay | X | X | X |
| *OPT | issue option request to filing system | X | X | X |
| *ROM | select ROM filing system | X | X | X |
| *SAVE | issue save request to filing system | X | X | X |
| *SPOOL | include text file in output stream | X | X | X |
| *TAPE | select tape filing system | X | X | X |
| *TV | TV configuration | X | X | |
These commands may be abbreviated by taking the first few letters and terminating with a ‘.’ character. Parameters may be passed in the text following the command.
Other unrecognised commands are first offered to paged ROMs and are then offered to the currently selected filing system via the filing system control vector.