HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

            INT 14,2 - Receive Character from Communications Port

       AH = 02
       DX = zero based serial port number (0-1) (0-3 for AT)


       on return:
       AH = port status  (see INT 14,STATUS)
            bit 7 = 0 if successful
            bit 7 = 1 if call failed
       AL = character received if call was success


       - 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 14,2 Home/PgUp/PgDn/End ←↑↓→