HX-20 "Smart Terminal" Program

          Instructions:

          1.  Load program into unused BASIC area (this program will 
          title itself and appear on the main Menu after it has run).

          2.  Connect CX-20 Modem to the HX-20.

          3.  Set the CX-20 for Orig, Full Duplex, and turn it on (see 
          instruction manual).

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          Available Functions:

          CTRL-D
          Half Duplex (Display typed characters) will toggle off/on.

          CTRL-C
          Close storage buffer.

          CTRL-E
          Terminate the program.

          CTRL-O
          Open storage buffer.

          CTRL-P
          Printed copy of buffer.

          CTRL-G
          Fill buffer (from Microcassette).

          CTRL-S
          Save buffer (to Microcassette).

          CTRL-Z
          Zero buffer (empty).

          CTRL-T
          Trnasmit buffer (to RS-232)

          CTRL-V
          View buffer (use spacebar to increment lines)

          CTRL-D
          End Viewing

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          Under normal conditions you should establish contact with 
          the remote station using the keyboard with the buffer 
          closed.

          After the receiving end is prepared to accept data (their 
          buffer is open), hold down the CTRL key and press T.  This 
          will send whatever is currently in the buffer to their 
          terminal.

          When receiving, your buffer must be open before the data you 
          wish to capture is sent (use CTRL-O).  With the buffer 
          closed, the information is displayed only to the LCD screen.

          Data Files may be retrieved from Microcassette:

          prompt-- DEV:FILESPEC
          input--- CAS0:FILENAME.EXT  (Whatever filename you want)

          The data file must be an ASCII file created by using the 
          PRINT# commands, or by saving to Microcassette with the ,A 
          on the end.  (See instruction manual.)

          The CTRL functions are executed by holding down the CTRL key 
          and pressing the desired function key.

          When using this program with Bulletin Boards it is not 
          necessary to display your own characters.  Most will echo 
          yours back to you.  If double characters are being 
          displayed, use CTRL-D.

          This version works well between two smart terminals when no 
          special control characters are being transmitted.  It has 
          the capability of capturing 500 lines of data, and provides 
          the HX-20 with buffer viewing after filling, (CTRL-V).

          It is recommended that controls not be used while data is 
          being received.  The program is set up for 300 BAUD, 8 bit 
          word, 1 stop bit, and no parity.

          All opening and closing of the buffer is the operators 
          responsibility.  Status is displayed upon execution of all 
          control characters.

          Please do NOT remove the REM's, this is all the compensation 
          received by the author.