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    Copyright 1991 David Jurgens | 
  
  
    
      
        
          
                                INT 21,3 - Wait for Auxiliary Device Input 
 
 
        AH = 03 
 
 
        on return: 
        AL = character from the auxiliary device 
 
 
        - does not supply error returns 
        - waits for character and reads from STDAUX 
        - default DOS AUX parameters are 2400,N,8,1 
 
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    | Esc or Alt-X to exit | 
    int 21,3 | 
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