| Function | Address | Description |
|---|---|---|
| DOS_SET_DRIVE | 012D | Set the default drive |
Synopsys
Set the default drive (i.e. the drive implied by all filenames that do not specify a drive).
The default drive is initially A:
Does not access the drive, but merely checks that there is a driver for it (which does not imply that the drive exists).
This only affects routines that take filename parameters.
Entry Parameters
| Register | Content |
|---|---|
| A | Drive letter A…P, 0xFF to get the default drive |
Exit Parameters
- If OK:
- Carry true
- A = default drive
- Otherwise:
- Carry false
- A=Error code
- Always:
- BC DE HL IX corrupt, all other registers preserved.