AX = 1F
on return:
AX = 001F if successful
FFFF if error
ES:BX = previous ~INT 33~ vector
- restores vectors for ~INT 10~ and INT 71 (8088/86) or INT 74 (286+)
- ~INT 33~ interrupt vector (software) is not affected
- use of the vector returned in ES:BX to restore the previous INT 33
vector can cause problems since it contains the value of INT 33
before the driver was installed; any other hooks into INT 33 set
after driver installation will not receive service
Zurück zum Interrupt Info. | Roger Morgan / 1998 | L.Änderung 29.03.99 |