Function 02h (2)         Character Output

    Outputs a character to the standard output device.

       On entry:      AH         02h
                      DL         Character

       Returns:       Nothing

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    This function outputs to the standard output device the character
    whose ASCII value is in DL.

       Notes:         This function issues an INT 23h if it detects a
                      Ctrl-Break or Ctrl-C.  This test is done after
                      displaying the character.

                      To output an entire string, see Function 09h.