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  Title:    Interrupt on Overflow                 Flags: O D I T S Z A P C
                                                         ═════════════════
  Syntax:   INTO                                             ± ±
 
  See also: INT, Int 04h
 
  Description:
 
     Generates Interrupt 04h if the overflow flag is set.
 
     Under DOS, the default Int 04h service routine is null. You must
     define an interrupt procedure for Int 04h for INTO to have any
     effect.
                                    -♦-