Int 21 Fn E3  - Doubledos - Add Character To Keyboard Buffer Of Current J  [T]

   AH = E3h
   AL = character

Return: AL = status
       00h successful
       01h buffer full (128 characters)

See Also: AH=E1h"DoubleDOS",AH=E2h"DoubleDOS",AH=E8h"DoubleDOS"

See Also: AH=F3h"DoubleDOS"