HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

                      INT 14,3 - Get Serial Port Status

       AH = 03
       DX = zero based serial port number (0-1) (0-3 for AT)

       on return:
       AH = port status
       AL = modem status

       - for status bits see INT 14,STATUS
       - the status check performs a poll of the port and does not
         perform character I/O

Esc or Alt-X to exit int 14,3 Home/PgUp/PgDn/End ←↑↓→
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