>l 5 / R 80 / J      tHIS IS THE BEGINNING OF A SERIES OF ARTICLES DEVOTED TO THE ASSEMBLY LANGUAGE PROGRAMMER.  i WILL FIRST COVER THE NECESSARY INPUT/OUTPUT DRIVERS, AND THEN INTEGRATE THEM INTO WORKING PROGRAMS.  iN ORDER TO HELP UNDERSTAND THE THINGS WE ARE TRYING TO ACCOMPLISH, A MINIMUM OF rom WILL BE USED.  i WILL ALWAYS TRY TO USE CODE EFFICIENTLY, BUT NOT BE BYTE CONSCIOUS AT THE EXPENSE OF VERSATILITY.     tHIS MONTH i WILL START WITH THE BASIC KEYBOARD SCAN, AND SCREEN PRINTER DRIVER.  tHE REMARKS SHOULD FULLY EXPLAIN EACH COMMAND.  aNYONE WITH COMMENTS, OR SUGGESTIONS SHOULD WRITE TO kIM wATT c/o THIS MAGAZINE.