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ZZAP (c) 1987 David K. Lovison 1 WESTCOMP ZZAP IS COPYRIGHT (c) 1987 DAVID K. LOVISON ALL RIGHTS RESERVED (References to ZZAP include ZZAPA). You may make archival copies of ZZAP, ZZAPA and MANUAL programs for yourself only! The low price of these programs is an incentive to pay WESTCOMP for this software in exchange for hassle-free unprotected software. Such a program can only survive if everyone pays their full share. If this software is to be used at a facility with more than one computer, please send a simple letter to WESTCOMP telling us the company and number of units this package will be used on. You will find our payment request will be very satisfactory in return for your honesty. ZZAP (c) 1987 David K. Lovison 2 WESTCOMP T A B L E O F C O N T E N T S CHAPTER SUBJECT PAGE _______ ______________________________________________ ____ 1.0 .... SELECTING OPTIONS AND CHANGING FIELDS ........ 3 2.0 .... ENTRY - TOP LEVEL ............................ 5 3.0 .... BUFFER OPERATIONS ............................ 6 4.0 .... CHANGING WINDOW VIEW BUFFERS ................. 9 5.0 .... EDITING IN A WINDOW VIEW ..................... 10 6.0 .... PAGE OPERATIONS .............................. 11 7.0 .... DISK INPUT TO A WINDOW VIEW .................. 15 8.0 .... OPEN A WINDOW VIEW ........................... 17 9.0 .... DISK OUTPUT FROM A WINDOW VIEW ............... 18 10.0 .... WINDOW VIEW BUFFER <-> MEMORY TRANSFERS ...... 20 11.0 .... LEAVING ZZAP ................................. 21 ZZAP (c) 1987 David K. Lovison 3 WESTCOMP 1.0 .... SELECTING OPTIONS AND CHANGING FIELDS There are three (3) main ways to select options within ZZAP: 1 - SELECTION FROM A WINDOW MENU, 2 - SELECTION BY USING THE SPACE BAR and 3 - SELECTION BY ALPHA/NUMERIC INPUT. 1.1 .... SELECTION FROM A WINDOW MENU If more than one (1) choice for an option appears within the bounds of a window boarder that suddenly appears, this is a selection from a window menu. An example of this would be the options that appear at the top level of ZZAP after the space bar has been depressed. (Run ZZAP (or ZZAP B), then depress the space bar). When a window with options appear, selection may be made by: DEPRESSING THE FIRST LETTER OF THE OPTION or MOVE THE SELECTION BAR WITH THE SPACE BAR OR CURSOR ARROW KEYS THEN DEPRESS THE ENTER KEY. If you change your mind, you may depress the 'ESC' key and return to the top level of ZZAP. There are numerous windows of this type and they vary in size from that of the major options to just two (2) options in size. They all will use the same method of selection or abort. There is one window that appears that may look like a window menu but it is not. This is seen when you select the PAGE OPERATIONS option. This option has it's own window and options within that window but changing those options are different than a window menu. As actual parameters to be changed, they are altered by ways that are covered in 1.2 and 1.3 (see also 6.0 .... PAGE OPERATIONS). 1.2 .... SELECTION BY USING THE SPACE BAR Some operations (in PAGE OPERATIONS) are changed only by depressing the space bar. These are limited to parameters that have a limited selection of options such as the printer (ON / OFF) or the display mode (HEX / ASC / DEC / OCT). If you are depressing the space bar and you pass the selection you wanted, just depress the space bar again until it re-appears. The options are displayed in a looping fashion. 1.3 .... SELECTION BY ALPHA/NUMERIC INPUT Throughout the ZZAP program, numerous numeric and alpha fields will be displayed in reverse video or normal video. Some requests for input will prompt you without showing a preselected field. ZZAP (c) 1987 David K. Lovison 4 WESTCOMP If there is no preselected field and you depress the enter key without any other input, this will usually be interpreted as a request to abort whatever you are into. If there is a preselected field that is seen (usually in reverse video) you may use the 'DEL' key to completely erase it or the backspace key to remove a charactor at a time. If the field is numeric, your keystrokes are checked for the type of numeric field being input. For example, if the field is octal, you will not be able to enter an 8 or 9 or any other charactor that is not within the family of octal numbers. Alpha fields will only accept alpha charactors (such as the ABS DRIVE in the PAGE OPERATIONS mode). Alpha numeric fields can contain most anything. It does not mean that it is a valid field, however. Such is the case of the file path/name. The validity is not checked until you actually do a read or write. The same is true of the ABS DRIVE. Any letter is allowed for it so be sure you have the drive that matches the letter! ZZAP (c) 1987 David K. Lovison 5 WESTCOMP 2.0 .... ENTRY - TOP LEVEL When you first run the ZZAP program, one large window fills the screen and a smaller window will be on the right hand side (the interface window). This is the top level of ZZAP. The interface window is used throughout ZZAP as an area to prompt you for input as well as displaying some information relative to the options you are currently in. Note on the bottom a "status line". On entry, it shows: GM: OFF / BUF: BUF / SEG: 0x.... / This says that the graphics mode is off, the window view buffer is set to the internal buffer. Because the window view buffer is set to the internal buffer, there is no memory segment address specified. The following keys are used at the top level: KEY PURPOSE _____ ________________________________________________________________ SPACE DISPLAYS OPTIONS (IF ALREADY DISPLAYED, MOVES SELECTION BAR) ESC IF OPTIONS DISPLAYED, REMOVES THE OPTION WINDOW, ELSE IF A WINDOW VIEW IS ACTIVE, CLOSES THAT WINDOW VIEW B BUFFER OPERATIONS C CHANGE BUFFER (TOGGLE BETWEEN BUFFER/MEMORY) E EDIT THE BUFFER (THE CURRENT WINDOW VIEW) P PAGE OPERATIONS R READ INTO THE BUFFER V VIEW A WINDOW W WRITE FROM THE BUFFER M MOVE BUFFER <-> MEMORY Z ZZAP EXIT F1 IF LEFT WINDOW IS UP AND NOT CURRENT, MAKES IT THE CURRENT ONE F2 IF RIGHT WINDOW IS UP AND NOT CURRENT, MAKES IT THE CURRENT ONE ALT-G TOGGLE BETWEEN GRAPHIC MODE ON / OFF ZZAP (c) 1987 David K. Lovison 6 WESTCOMP 3.0 .... BUFFER OPERATIONS This operation allows you to perform various operations to the window view buffer (or whatever the window view is accessing). It is necessary for a window view to be active in order to use this option. If no window view is up, one will be opened for you. After selecting this option, another window with options will be displayed. Select from: 1 - ADVANCE 2 - COPY 3 - EXCHANGE 4 - FILL 5 - SCAN 6 - MATCH 7 - NEW MODE 8 - LOGICALS 3.1 .... ADVANCE This allows you to move the specified byte (0 - 65535) to the top of the active window view. After the prompt "ADVANCE TO:", input the number of the byte to move to in decimal. After you input a number, that byte will now be at the top of the active window view. The window view will loop back to the beginning (byte 0) if the display reaches the end (byte 65535) first. 3.2 .... COPY This allows you to copy a range of bytes from one area to another within the current window view. You will be asked for three (3) parameters: PROMPT INPUT __________ _____________________________________________________ SOURCE: THE BYTE # (DEC) OF THE STARTING STRING TO COPY DESTIN: THE BYTE # (DEC) TO BEGIN TRANSFERING TO COUNT: THE NUMBER OF BYTES TO COPY (UP TO 65535) 3.3 .... EXCHANGE This allows you to exchange a range of bytes with one another within the current window view. Again, you will be asked for three (3) parameters: PROMPT INPUT __________ ____________________________________________________ SOURCE: THE BYTE # (DEC) OF THE STARTING STRING TO EXCHANGE DESTIN: THE BYTE # (DEC) TO BEGIN THE EXCHANGE WITH ZZAP (c) 1987 David K. Lovison 7 WESTCOMP COUNT: THE NUMBER OF BYTES TO EXCHANGE (UP TO 65535) 3.4 .... FILL This allows you to fill the current window view buffer with a selected byte. The three (3) parameters to answer are: PROMPT INPUT __________ ____________________________________________________ START BYTE: THE BYTE # (DEC) TO BEGIN THE FILL # OF BYTES: THE NUMBER OF BYTES YOU WANT TO FILL FILL WITH: INPUT DEPENDS ON THE CURRENT MODE FOR THAT WINDOW When ZZAP is first entered, both windows are set to an ASCii mode. The mode is seen at the top of the window view itself - it is in normal video while the other options are in the same video mode as the window border itself. See 3.7 on changing this mode. 3.5 .... SCAN This allows you to scan the current window view up or down. The buffer will loop around if one of the limits are reached (0 or 65535). There are no prompts but you can use the up arrow and down arrow cursor keys to control the direction of the scan. You can use the left and right arrow cursor keys to control the scanning speed. The left arrow speeds the scan. This throttle was used to adjust the speed because of the variety of systems and their various clock speeds. Some systems, without the throttle, will scan so fast that nothing is readable at all - just a blurrrrrr! While you are scanning, you may pause the display by pressing the space bar. Any other key will continue the scan. To exit the scan mode, depress the 'END' key. 3.6 .... MATCH This allows a string to be searched for within a window view (the destination window). A window menu will appear twice to prompt you for the source and destination windows. The window view for the source / destination must be open yet not necessarily active. The source and destination window views can be the same window. After selection of the source and destination, the following parameters must be answered: PROMPT INPUT __________ ____________________________________________________ MATCH BYTE: BYTE # OF START OF STRING IN SOURCE WINDOW (DEC) # OF BYTES: # OF BYTES IN THE STRING TO SEARCH FOR START SEARCH FROM BYTE: BYTE # IN DESTINATION WINDOW TO BEGIN THE SEARCH ZZAP (c) 1987 David K. Lovison 8 WESTCOMP If no match is found, a message is printed to state such and the program will pause until a key is pressed. If a match is found, a beep will occur and the destination window top byte is set to the 1st byte of the matched string. If the destination window is also set as the current window, the window will be updated. If the destination window is not the current window, you will not see the update until you make it the current window with the F1/F2 keys at the top level. 3.7 .... NEW MODE This is where you select the mode (ASC, DEC, OCT, HEX) to use for the current window. Another window of options will be displayed with the four (4) options. Simply select the new option and the mode indication on top of the current window will be changed! 3.8 .... LOGICALS You can perform logical operations to a range of bytes within the current window view. Upon selection of this option, another window menu will appear. Select the logical operation to be performed (AND, OR, XOR, RSH, LSH, CMP). The CMP is a one's compliment. After selection of the operation, answer the following prompts: PROMPT INPUT __________ ____________________________________________________ START BYTE: STARTING BYTE # TO PERFORM OPERATION # OF BYTES: NUMBER OF BYTES TO DO (UP TO 65535) LOGICAL BYTE: BYTE (HEX) TO PERFORM LOGICAL OPERATION WITH ZZAP (c) 1987 David K. Lovison 9 WESTCOMP 4.0 .... CHANGING WINDOW VIEW BUFFERS This option will toggle between the internal window view buffer and a specified memory segment. If a window view is current (high-lighted), that window view will be toggled also. If the current window view is pointing to the internal buffer and this option is selected, that window will now change to whatever segment in memory specified. If this option is selected again, the window will once again be back to the internal buffer (no data is altered by using this mode). Note that a window view does not need to be opened for this option. If this option is selected, the next window view to be opened will be opened into whatever is shown at the bottom status line: BUF: xxx / SEG: 0x.... When going from the buffer to memory, you will be prompted for the memory segment (HEX) to use as the new "buffer". When switching back and forth between left and right window views, the bottom status line will display what that window view is pointing to. ZZAP (c) 1987 David K. Lovison 10 WESTCOMP 5.0 .... EDITING IN A WINDOW VIEW You may edit the current window view a byte at a time in the current mode for that window (HEX, DEC, OCT, ASC). You will be prompted for "EDIT BYTE:". This is the starting byte (in DEC) to begin to edit. A reverse video bar will be displayed over the first byte to edit. Use the up arrow and down arrow cursor keys to move the edit bar before you input the next byte. If the current mode is ASC, you may type freely until you depress ALT- Q. This will terminate the edit session is the mode was ASC. To terminate the edit session in a numeric mode, just depress the "ENTER" key (no input). Upon termination, the edit bar will leave and you will be returned to the top level of ZZAP. ZZAP (c) 1987 David K. Lovison 11 WESTCOMP 6.0 .... PAGE OPERATIONS Page operations allows you to view data in one of four modes that will fill the screen (256 bytes at a time). Upon selection of this option, you will see the page set-up screen. These are parameters that may be changed to suit your individual need. They are: 1 - PRINTER 9 - FILE END 2 - PAGE LENGTH 10 - SECTOR START 3 - LEFT MARGIN 11 - SECTOR END 4 - PERF SKIP 12 - ABS DRIVE 5 - FILE NAME 13 - ACCESS MODE 6 - BUFFER START 14 - SHOW BYTE CNT 7 - BUFFER END 15 - DISPLAY MODE 8 - FILE START 16 - FILE DUMP To select a parameter to change, move the selection bar with the up and down arrow keys. 6.1 .... PRINTER Allows the output to be sent to the printer. Selection is toggled with the space bar - ON / OFF. 6.2 .... PAGE LENGTH Allows setting the number of printed lines (data only, does not include the title line) for output to the printer. To change, depress the space bar and change the numeric field. Depress the "ENTER" key when you are finished. When the page length is met, the page number is incremented (lines are counted even when scrolling up and down). 6.3 .... LEFT MARGIN Allows a left margin to be printed before each line is printed to the printer. This just allows for neater outputs from the printer. Edit of this field is done as in 6.2. 6.4 .... PERF SKIP When the printer is ON and the number of lines printed match the page length, blank lines will be output (to skip over fan fold paper perfs). Edit of this field is done as in 6.2. 6.5 .... FILE NAME The file name (which can include a drive/path) can be up to 50 charactors in length. This file name is shared by the READ / WRITE operations to the window view modes. Edit of this field is done as ZZAP (c) 1987 David K. Lovison 12 WESTCOMP mentioned in chapter 1.0. 6.6 .... BUFFER START The starting byte (DEC) to start the page display in. When you edit this value, you can not make it greater than the buffer end byte. If you need to, change the buffer end byte value first. Edit of this field is done as in 6.2. 6.7 .... BUFFER END The ending byte (DEC) to end the page display in. When you edit this value, you can not make it less than that of the buffer start byte. If you need to, change the buffer start value first. Edit of this field is done as in 6.2. 6.8 .... FILE START File start values always begin with 1. You can not make this any less than 1 nor can you make it greater than the file end byte. If you need to, change the file end value first. If the start value is greater than the end of the file (the file size), you will get an error. Edit of this field is done as in 6.2. 6.9 .... FILE END The file end value can not be less than that of the file start value. It can exceed the end of the file. If it does, the value will be readjusted to a value that will not exceed the file end as well as exceed the page buffer (one segment in size) that is used for disk input, both file and sector operations. Edit of this field is done as in 6.2. 6.10 .... SECTOR START The sector start can range up to and including the sector end value. If both sector start and end are the same, only that sector is read in. Edit of this field is done as in 6.2. Sectors are logical sectors numbered from 0. 6.11 .... SECTOR END This value can not go below the sector start value. Edit of this field is done as in 6.2. ZZAP (c) 1987 David K. Lovison 13 WESTCOMP 6.12 .... ABS DRIVE This is the drive letter used for absolute (sector) operations. This drive is the same as used for sector READ / WRITE operations to the window view. To edit the drive, depress the space bar, depress the backspace key and enter a drive. If you don't enter anything, you will get an invalid drive error. 6.13 .... ACCESS MODE This is what the page mode will actually display. Depressing the space bar will cycle through the options of BUFFER, FILE, SECTOR. If file or sector have been selected, the disk and file / sector will be accessed and the data will be read into the dedicated file buffer (the address of this file buffer appears at the bottom right hand side of the page options screen. You can use this segment with the window view thus providing a way to write back to the disk. The BUFFER selection is the current window view buffer, whether that be the internal window view buffer or a memory segment specified with the 'c' mode option at the top level of ZZAP. 6.14 .... SHOW BYTE CNT Depressing the space bar will toggle this selection between HEX and DEC. The values on the right-hand side of the page display as well as the start and end bytes will be displayed in whatever mode this option is in. If the ACCESS MODE has been set to SECTOR, the byte count is always changed to HEX to show both the sector and byte of that sector. 6.15 .... DISPLAY MODE The actual display of data in page mode will be in this mode. Depress the space bar to cycle through the options (DEC, HEX, OCT, ASC). When the HEX mode is selected, the display is both HEX and ASC, with the ASC showing only printable charactors. Any other charactors will be displayed by a period. 6.16 .... FILE DUMP This allows you to dump a file from the start byte specified to the end of the file. The file end value will be reset to read in a full segment worth of data until the end of file is reached. The ACCESS MODE must be set to FILE. When the dump begins, it will stop when it reaches the end of the file or when a key is depressed. This means you can dump those large files to a printer and walk away until it is done! To leave the page options and display the data, just depress the 'END' key. ZZAP (c) 1987 David K. Lovison 14 WESTCOMP To return to the top level, depress the 'ESC' key. While in the page display, the following keys may be used (except if doing a file dump): KEY PURPOSE _________ ________________________________________________________________ DN ARROW SCROLL THE DATA DOWN UNTIL THE END LIMIT IS REACHED UP ARROW SCROLL THE DATA UP UNTIL THE END LIMIT IS REACHED PGDN SCROLL THE DATA DOWN 1 PAGE WORTH PGUP SCROLL THE DATA UP 1 PAGE WORTH HOME START THE DISPLAY FROM THE STARTING BYTE END START THE DISPLAY TO INCLUDE THE END BYTE ALT-G TOGGLE THE GRAPHIC MODE DISPLAY ALT-Q TOGGLE THE EDIT MODE ALT-A WHEN IN HEX DISPLAY MODE AND IN EDIT MODE, TOGGLE TO/FROM ASCII LT ARROW SPEED THE DISPLAY UP (SAME AS THROTTLE IN BUFFER SCAN MODE) RT ARROW SLOW THE DISPLAY DOWN (SAME AS THROTTEL IN BUFFER SCAN MODE) ESC RETURN BACK TO THE PAGE OPTIONS When in the edit mode, use the cursor arrow keys to move the cursor. Edit mode will edit only the data that is displayed at that point in time! ZZAP (c) 1987 David K. Lovison 15 WESTCOMP 7.0 .... DISK INPUT TO A WINDOW VIEW You may read file or sector data into the current window view. Pay attention to what the current window view is pointing to! If the drive you are using is a removeable media drive, be sure the media is in first! NOTE: ZZAP RETAINED THE FATAL ERROR HANDLER OF MS-DOS. IF A FATAL ERROR DOES OCCUR, ATTEMPT TO CORRECT THE PROBLEM (UNLESS YOU WANT TO ABORT) AND RETRY THE OPERATION. THE WORST CASE RESULT IS THAT SMALL PORTIONS OF THE SCREEN WILL RETAIN THE CHARACTORS THAT WERE PRINTED BY THE FATAL ERROR ROUTINE. IT WAS DECIDED THAT IF THE ERROR WAS FATAL IN NATURE, WE WANTED ZZAP TO RETURN TO THE OPERATING SYSTEM IN CASE OF AN EMERGENCY ABORT. Upon selection of this option, you will be prompted with a window menu: 1 - FILE ACCESS 2 - SECTOR ACCESS 7.1 .... FILE ACCESS DO NOT REMOVE YOUR DISK MEDIA UNTIL THE PROGRAM HAS RETURNED TO THE TOP LEVEL! In this mode, if you specify a file name that does not exists, one will be created with a length of 0. You will be shown the drive/path/filename (same one as in PAGE OPERATIONS) and be given an opportunity to change it. After depressing the "ENTER" key, the file will be accessed and the size of file will be displayed. PROMPT INPUT __________ ____________________________________________________ FILE ST: >= 1, 0 WILL ABORT, ERROR IF > SIZE OF FILE XFER CT: NUMBER OF BYTES TO TRANSFER TO THE CURRENT WINDOW BUFF ST: STARTING BYTE OF BUFFER TO BEGIN THE TRANSFER An error will result if the XFER CT plus the BUFF ST exceeds the end of the window view buffer (65535). The maximum bytes that can be transfered is 65536 when BUFF ST = 0. If the XFER CT is greater than the end of the file, XFER CT is changed to the end of the file (the file size). After entering the above, "<R>ead" will appear. You must enter an 'r' or 'R' to begin the read operation. After the read is done, you will be told the number of bytes that actually transfered and ZZAP will pause until you depress a key. The current window is updated upon return to the top level. ZZAP (c) 1987 David K. Lovison 16 WESTCOMP 7.2 .... SECTOR ACCESS You will be shown the drive (change it in the PAGE OPERATIONS options) and be prompted for: PROMPT INPUT __________ ____________________________________________________ START @: STARTING SECTOR (DEC) XFER CT: # OF SECTORS TO READ IN (0 WILL ABORT) BUFF ST: STARTING BYTE IN BUFFER TO START TRANSFER You will be shown the bytes/sector and then "<R>ead" will appear. You must depress either 'r' or 'R' to initiate the read operation. Any other key will abort this option. As the sectors are reading in, you will see the count of that sector displayed (if the number of sectors are small, this might occur to fast to see). The current window view will be updated when this is done! ZZAP (c) 1987 David K. Lovison 17 WESTCOMP 8.0 .... OPEN A WINDOW VIEW Two window views can be opened at any one time. Only one of the two may be active. The active window is the one with the high-lighted window border. Remember that you can change the active window at the top level by using the F1 / F2 keys. If you try to open a third window, you will get an error message telling you to remove a window view first. Remember that the 'ESC' key will delete the current (active) window. When a window view is opened, the mode will be set to whatever was last selected. What the window view will be a window into depends on what the bottom status line is showing. (BUF: BUF) will set the view to the internal dedicated window view buffer. (BUF: MEM / SEG: 0x????) will set the view to the segment specified by ????. Whatever it is a view into, the full range of the window view is 0 - 65535, for a total of 65536 bytes (1 full segment size). Also remember that when the term buffer is used for the access mode in the page operations, it is refering to the CURRENT WINDOW VIEW and whatever it is viewing. It could be viewing the dedicated file buffer for the page mode by entering that buffer segment in the 'c' operation (from top level). ZZAP (c) 1987 David K. Lovison 18 WESTCOMP 9.0 .... DISK OUTPUT FROM A WINDOW VIEW You may write file or sector data into the current window view. Pay attention to what the current window view is pointing to! If the drive you are using is a removeable media drive, be sure the media is in first and NOT write protected!!! NOTE: ZZAP RETAINED THE FATAL ERROR HANDLER OF MS-DOS. IF A FATAL ERROR DOES OCCUR, ATTEMPT TO CORRECT THE PROBLEM (UNLESS YOU WANT TO ABORT) AND RETRY THE OPERATION. THE WORST CASE RESULT IS THAT SMALL PORTIONS OF THE SCREEN WILL RETAIN THE CHARACTORS THAT WERE PRINTED BY THE FATAL ERROR ROUTINE. IT WAS DECIDED THAT IF THE ERROR WAS FATAL IN NATURE, WE WANTED ZZAP TO RETURN TO THE OPERATING SYSTEM IN CASE OF AN EMERGENCY ABORT. Upon selection of this option, you will be prompted with a window menu: 1 - FILE ACCESS 2 - SECTOR ACCESS 7.1 .... FILE ACCESS DO NOT REMOVE YOUR DISK MEDIA UNTIL THE PROGRAM HAS RETURNED TO THE TOP LEVEL! You will be shown the drive/path/filename (same one as in PAGE OPERATIONS) and be given an opportunity to change it. After depressing the "ENTER" key, the file will be accessed and the size of file will be displayed. PROMPT INPUT __________ ____________________________________________________ FILE ST: >= 1, 0 WILL ABORT, ERROR IF > SIZE OF FILE XFER CT: NUMBER OF BYTES TO TRANSFER TO THE CURRENT WINDOW BUFF ST: STARTING BYTE OF BUFFER TO BEGIN THE TRANSFER An error will result if the XFER CT plus the BUFF ST exceeds the end of the window view buffer (65535). The maximum bytes that can be transfered is 65536 when BUFF ST = 0. If the XFER CT is greater than the end of the file, the size of the file will be increased. Keep in mind that this is done by stream operations, so any END-OF-FILE indicator may be overwritten! If you need a particular indicator, you can easily write that out to the end of the file with ZZAP. Writes that are less that the size of file will not reduce the size of the file. The data is "painted" where you want it on the file. After entering the above, "<W>rite" will appear. You must enter an 'w' or 'W' to begin the write operation. After the write is done, you will be told the number of bytes that actually transfered and ZZAP will pause until you depress a key. ZZAP (c) 1987 David K. Lovison 19 WESTCOMP The current window is updated upon return to the top level. 7.2 .... SECTOR ACCESS You will be shown the drive (change it in the PAGE OPERATIONS options) and be prompted for: PROMPT INPUT __________ ____________________________________________________ START @: STARTING SECTOR (DEC) XFER CT: # OF SECTORS TO WRITE (0 WILL ABORT) BUFF ST: STARTING BYTE IN BUFFER TO START TRANSFER You will be shown the bytes/sector and then "<W>rite" will appear. You must depress either 'w' or 'W' to initiate the write operation. Any other key will abort this option. As the sectors are being written, you will see the count of that sector displayed (if the number of sectors are small, this might occur to fast to see). The current window view will be updated when this is done! ZZAP (c) 1987 David K. Lovison 20 WESTCOMP 10.0 .... WINDOW VIEW BUFFER <-> MEMORY TRANSFERS This is to transfer between the dedicated window view buffer and memory. Upon selection of this option, a window with two (2) options will appear: 1 - MEMORY -> BUFFER 2 - BUFFER -> MEMORY Chose the direction you want the transfer to go. <M> will move memory into the buffer (the dedicated window view buffer). <B> will move data in the buffer to the specified memory location. After selection of the direction, answer the following prompts: PROMPT INPUT __________ ____________________________________________________ MEM (HEX) SEG: INPUT THE MEMORY SEGMENT IN HEX MEM BYTE: SEGMENT OFFSET (DEC) 0 - 65535 BUFFER ST: STARTING BYTE OF THE DEDICATED WINDOW BUFFER TO XFER # BYTES: NUMBER OF BYTES TO TRANSFER ( IF 0, ABORT) ( IF BUFFER ST + # BYTES > END OF BUFFER, ERROR) ( IF NO VALUE ENTERED, ABORT) If there is a current window up, the top of that window is set to the value entered as the BUFFER ST value and the window is updated (it is possible that the current window is not pointing to the dedicated window buffer, in which case the update would only remind you what the buffer start byte was). It is not required to even have a window view open to perform this operation, since the buffer used is always the dedicated window view buffer. ZZAP (c) 1987 David K. Lovison 21 WESTCOMP 11.0 .... LEAVING ZZAP It is easy (perhaps too much so) to exit ZZAP. Just depressing an upper or lower case Z will return you back to the command line of MS- DOS. Don't make a practice of leaning your hands or anything else on the keyboard - you might exit at a time you did not want to! If you find a change you would like to see to ZZAP or a bug (hope not!), please let us know by a letter with the exact information - please print! If you are the first to make us aware of a problem or we include an enhancement that you first suggested, we will send you the updated version with our thanks! We keep a data base of those that have purchased ZZAP. This data base will be used to make all aware of major changes and how to aquire them. IF YOU PURCHASED ZZAP, THANK YOU. IF YOU HAVE A COPY AND HAVE NOT PAID, PLEASE SEND IN YOUR PAYMENT FOR A MODEST $30.00. WE AND OTHERS LIKE US CAN ONLY SURVIVE IF SUCH QUALITY, LOW PRICED SOFTWARE IS PROPERLY PAID FOR. PROGRAMS THAT DO HALF OF WHAT ZZAP DOES WILL COST YOU MUCH MORE IF PURCHASED IN ONE OF THE NORMAL STORES, ETC. AGAIN, THANKS.