HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

                         INT 21,4 - Auxiliary Output


       AH = 04
       DL = character to output


       returns nothing


       - sends character in DL to STDAUX
       - does not supply error returns
       - waits until STDAUX is available
       - default DOS AUX parameters are 2400,N,8,1

Esc or Alt-X to exit int 21,4 Home/PgUp/PgDn/End ←↑↓→