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-
-
- =============== WILDCAT! FILE SYSTEM TUTORIAL ==================
-
- The files area allows users to move files between your system and
- WILDCAT!. Downloading is the process of moving files from WILDCAT!
- to your computer, and uploading is moving files from your computer
- to WILDCAT!.
-
- Data transfer can be done in a number of ways in WILDCAT!. New
- error checking protocols are being added on a regular basis, but
- the most common transfer methods are XMODEM, YMODEM and standard ASCII.
- XMODEM protocol was originally developed by Ward Christensen, a
- pioneer in micro communications. XMODEM is included in many
- communications programs including PC-TALK III, QMODEM, CROSSTALK,
- SMARTCOM and many more. Before talking any more about specific
- protocols, lets review the general method of locating a file or
- program to download from a WILDCAT! system.
-
- The explaination which follows assumes the SYSOP has adopted the
- standard WILDCAT! Files System Menu, and is using the recommended
- prompts. Since every WILDCAT! system has the option of changing the
- wording of this menu, you may find some slight variation of the
- menu prompts which will perform the same functions.
-
- WILDCAT! allows the System Operator the option of storing files in
- separate subdirectories or areas, each of which is devoted to different
- types of files or programs. File areas usually have names like GAMES,
- UTILITIES, etc., and contain files of that type. Select the LIST command,
- usually displayed as [L]ist on the menu and you will be prompted for the
- specific file area you wish to view. The complete names of the files
- available will be listed along with file size, date added to the system,
- time needed to download at your baud rate, the number of times it has
- been downloaded, and a brief description of each file.
-
-
- XMODEM FILE TRANSFER
-
- WILDCAT! supports two variations of the XMODEM protocol called
- XMODEM and XMODEM/CRC respectively. One of these two protocols is
- required if you intend to transfer files with extensions of EXE,
- OBJ, COM, ARC, LBR, xQx, as well as tokenized BASIC programs.
- Files containing the IBM PC special ASCII characters (ones with
- ASCII values above 128) must also be transferred with XMODEM,
- including Wordstar files. These files cannot be transferred in
- ASCII mode since ASCII transfer is only 7 bit and these types of
- files require the full 8 bit transfer of the data with no
- translation of the contents of the file.
-
- XMODEM also offers the advantage of error checking on a block by
- block basis to assure that the data sent contains no errors. It
- does this by adding a checksum byte to the end of each block of
- data; the receiver calculates its own checksum and compares it to
- the one received. If an error is detected in the transmission,
- XMODEM will request that WILDCAT! retransmit the block of data.
-
- In addition to the above checksum comparison, XMODEM/CRC adds
- another level of error detection using a complex CYCLICAL
- REDUNDANCY CHECK algorithm.
-
- Please be certain to select and use matching protocol types for
- accurate data interchange. QMODEM, a product of John Friel and the
- FORBIN PROJECT supports both XMODEM and XMODEM/CRC, and will usually
- contain additional protocols added to WILDCAT!.
-
- To perform an XMODEM file download, first determine the name of a file
- by using the <L>IST command.
-
- 1. Select <D>OWNLOAD from the FILES MENU
-
- 2. Enter the COMPLETE file name. WILDCAT! will check to make sure the
- file exists and then proceed. If the file is not found, check the
- spelling in the [L]ist.
-
- 3. Select the transfer protocol you want to use by entering the
- number which corresponds to it, ie. 3 for XMODEM/CRC.
-
- 4. WILDCAT! will indicate how many blocks are to be sent and wait
- for you to begin you transfer procedure. Once WILDCAT! indicates
- it is READY TO SEND you should then open your recieve or capture
- file (QMODEM & PC-TALK.III Alt-R command) and start the XMODEM
- receive process. PC-TALK.III starts XMODEM for you ONLY IF you put
- '=X' at the end of the download filename. QMODEM will ask for the
- protocol type much the same way as WILDCAT!
-
- 5. The file will be transferred automatically block by block under
- XMODEM until the entire file has been sent. You may abnormally
- abort the transfer by sending WILDCAT! an ASCII CAN code (CTRL-
- X). PC-TALK.III & QMODEM will do this for you if you enter an
- Alt-R during the file transfer, or it can be entered from the
- keyboard.
-
- 7. When the file transfer is finished, XMODEM automatically closes
- your capture file for you. XMODEM also ensures that no garbage
- gets into your file; binary files and text files are sent to
- you with 99.6% error free transmission with XMODEM and better
- than 99.9% with XMODEM/CRC.
-
- ASCII DATA CAPTURE
-
- ASCII transfer is simply the sending of information as characters,
- and is limited to 7 bit information. The transfer of files in
- ASCII mode can be done if your system is capable of any type of
- data capture. To download a file using the ASCII method, follow
- the same sequence of steps listed above for XMODEM, but select
- protocol type 1, ASCII.
-
- 4. WILDCAT! will ask which type of ASCII transfer you want,
- 1. PROMPTED
- 2. TIME DELAY
- 3. NO DELAY
-
- NO DELAY is the simplest and will cause WILDCAT! to send the file
- full speed to your system with no pauses. If it is a long file and
- your system has only a small communications buffer, you may find
- your computer is unable to keep up with receiving & writing the file
- without losing some characters. If so, change to a TIME DELAY as
- indicated below.
-
- TIME DELAY will allow you to specify the amount of time between each
- transmitted character in hundredths of a second. For example you
- could specify 10 as the time delay and WILDCAT! would wait 10/100 of
- a second (one tenth) between each character sent. A delay between
- 10 and 50 will allow almost any system to successfully receive ASCII
- even if a buffer problem has been found.
-
- PROMPTED transmission allows receiving the file line by line with a
- pause between each line until a specified character has been
- received by WILDCAT!. You must tell WILDCAT! what character will be
- sent by your system to signal that it is ready for the next line.
-
- 5. Open your capture or receive file as indicated by WILDCAT!
- (Opening your capture file is done by using the Alt-R command in
- PC-TALK & QMODEM) After setting up to receive the file on your
- end, you have to send WILDCAT! one carriage return so that it
- knows you are ready to start.
-
- 6. The file will be sent a line at a time until the entire file is
- sent. You will see the lines of ASCII code (readable text and
- numbers) on your screen as they flow to your system. A Ctrl-X
- (ASCII CAN) can be sent anytime to abort the transmission of the
- data.
-
- 7. When the file transfer is finished, WILDCAT! will send you an
- End Of File Marker (Ctrl-Z) and tell you to close your capture
- file (PC-TALK & QMODEM Alt-R)
-
-
- FILE UPLOADING
-
- File uploading to WILDCAT! is very similar to downloading.
-
- Uploading of ASCII files can be done without interruption between
- lines. WILDCAT! can handle data uploading at up to 2400 baud
- without any problem.
-
- Before sending a file be sure WILDCAT! has enough disk space to take
- the file. When you select <U>PLOAD at the File menu, the system will
- tell you how much disk space is free on the upload drive.
-
- UPLOAD GROUND RULES
-
- You are encouraged to donate programs to the library on this system.
- Any type of program or document is welcome, however, a few ground
- rules are in order. The files donated must contain only information
- that is in the public domain. No private or commercial information
- should be placed on this system. The SYSOP is not responsible for
- any of the data that is shared on this system.
-
- MUSTANG SOFTWARE
- 3125 19th Street, Suite 162
- Bakersfield, CA 93301-3118
- VOICE (805) 395-0223
- DATA (805) 395-0650
-
- Jim Harrer Rick Heming
-