:
DEC , 1;
CMP , - . CMP , SUB, , . , CMP, .
SUB , ; :
=
SBB , ( CF). :
= - CF.
SBB ADC, CF 1 .
CF. 1, , .
, , , OF. 1 , (.. ) , .
. (22 )
, . . , . . , , .
- , . ( ), . , DoneMsg - , "Returning to DOS", :
GoodBy DB DoneMsg
:
GoodBy DB 'Returning to DOS'