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- The program, nuterm.bin, is a bare bones terminal program, written in BASIC,
- to illustrate the technique of saving an ASCII text file to diskette without
- sending holdoffs to the host (CONTROL S, e.g.). Because no error checking
- protocol is used, the method is not
- recommended for program files. But it
- produces minimum online time. If contiguous characters are received, they re
- displayed and saved to a sequential file in essentially real time. No buffer,
- other than the 255 byte, RS-232 receiver buffer, is used. Thus, since the
- program ma be easily modified, the addition of a capture buffer will permit
- both saving to diskette and buffer capturing for later printing. It has been
- tested with a C-64C, a 1670 modem, and a 1541-II drive at 300 and 1200 baud.
- When LOADed and RUN, it transfers 515 bytes of ML to the region from $C000 to
- $C202. The BASIC program itself occupies $0801 to $0D6C. Any line number
- greater than 20 and less than 2020 may be deleted, edited, or added. If the
- program is reSAVEd, be sure to make line 10 end in GOTO 2020 rather than GOTO
- 0020. Since the program was designed for use with CIS, F2$, F4$, and 6$ are
- string variables which should be redefined as 'phone number, user ID, and
- password (unless your password happens to be number/modem). After answering
- prompts for FILENAME of file to be SAVEd and baudrate, pres F1 to enter
- terminal mode. You are then in an ML loop. You would usually press F2 to dial
- he CIS 'phone number, press the STOP key for a control C when connection is
- made, and follow with F4 for user ID and F6 for password. Press F3 to return
- to menu mode. If a text file is to be SAVEd to diskette, request to REAd the
- file. After entering the CIS FILENAME,
- don't press return. Press F5 instead.
- You should see the text on the screen and be SAVing to diskette. The sporadic
- breaks in printing to the screen, during drive read/write head activity, do not
- represent hold offs sent to the host. As soon as the drive sets the program
- free, the characters that had built up in the receiver buffer are rapidly read
- out. At the end of the file, first press F7, then RETURN. ONLY THE F7 KEY IS
- OPERATIVE DURING A SAVE. PETASCII/ASCII and ASCII/PETASCII conversion is used.
- Again, this is just a demonstration of a technique whih may not be in common
- use. The program hardly quallifies as a finished product. It was designed for
- ease of modification. All suggestions,
- criticisms and comments are welcome.
-
- John Iannetta
-
- 73510,2152
-