Table des matières
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INT 0x21 - 0x3d - Open File or Device Using Handle
Request/Call:
| reg | value | descr |
|---|---|---|
| AH | 0x3d | |
| AL | Mode (see below) | |
| DS:DX | pointer to ASCIIZ file name |
Return:
CF is cleared : success
| reg | descr |
|---|---|
| AX | File Handle |
CF is set: error
| reg | descr |
|---|---|
| AX | error code (see DOS Error Code) |
Notes & Comments
- will open normal, hidden and system files
- file pointer is placed at beginning of file