DOS_SET_DRIVE
Set the default drive
Categories:
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.
Last modified November 24, 2021: Start of +3DOS documentation (253d8cc)