Вы можете попробовать этот код: -
shutdown_sucess:
mov ax, 5301h ; Connect to the APM
xor bx, bx
int 15h
je near continue_connection ; Pass if connected
cmp ah, 2
je near continue_connection ; Pass if already connected
ret ; Bail if fail
continue_connection:
mov ax, 530Eh ; Check APM Version
xor bx, bx
mov cx, 0102h ; v1.2 Required
int 15h
ret