HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

               INT 14,1 - Send Character to Communications Port

       AH = 01
       AL = character to send
       DX = zero based serial port number (0-1) (0-3 for AT)

       on return:
       AH = port status  (see INT 14,STATUS)
            bit 7=0 indicates success
            bit 7=1 indicates error, bits 0-6 indicate cause

       - INT 14,3 should be used to determine the actual cause
         of the error since the time-out bit of the status register
         is always set during an error on this call
       - uses hardware flow control

Esc or Alt-X to exit int 14,1 Home/PgUp/PgDn/End ←↑↓→
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