A file may be opened for viewing by using Open file from the File menu, or the Open button on the toolbar.
There is no specific limit on the size of a file to be opened, but as the whole file is loaded into memory there must be enough free memory to do this.
All files, including system files and those on the Z drive, are accessible.
A file may be saved by using Save from the File menu.
There must be enough free space on a drive to save an additional copy of the file. This is because it is initially saved to a temporary file to ensure that a partially modified file is not produced in the case of system failure.
nd any comments or reports of bugs to <tixy@cajji.clara.net>
Hex or ASCII data may be entered when the cursor is in the appropriate listing.
The first change you make to a file will produce a dialogue box which will ask you to confirm that you do indeed wish to make changes.
If these changes are in the first 16 bytes of a file with valid UIDs then you will also be given the option to recalculate the checksum for them.
A file may be searched by using Find from the Edit menu, or the Find button on the toolbar. This will bring up a dialogue box.
You can enter text for the search if the format type is set to ASCII, or enter hexadecimal numbers by selecting Hex. It is possible to enter more than one number by separating them with spaces and they may each contain up to 8 digits. e.g.
Entering 12 56 BC will find occurrences of these three bytes in this order.
Entering 349A will find the two bytes 9A and 34 (Note, the numbers are 'little endian')
Entering 00123456 will find 56 34 12 00.
To repeat a search use Find next from the menu or the toolbar.
A file may be saved by using Save from the File menu.
There must be enough free space on a drive to save an additional copy of the file. This is because it is initially saved to a temporary file to ensure that a partially modified file is not produced in the case of system failure.
A cursor is shown in the file dump which can be moved around using the arrow keys or the pen. You can change between the Hex and ASCII listings by using ctrl+Tab or using Input toggle on the Edit menu.
Go to
To view a specific part of a file use Go to from the Edit menu, or tap the addresses at the start of each line of the file dump.
This will bring up a dialogue box where you may enter an address in hexadecimal, the cursor will then be moved to this location.
Note; if the cursor is at a location where the next four bytes specify a valid address in the file, then this address will appear in the dialogue box as a suggestion.
Instead of specifying an absolute location you may prefix an address by p or + to move forwards by a given number of bytes. Likewise m or - will move backwards.
Another feature is the ability to jump over data by using Skip from the Edit menu or the toolbar.
This reads a byte, word or long from the cursor position and skip forwards this number elements, which may also be bytes, shorts or longs.
e.g. Skipping Byte count Longs when the byte at the cursor position is 08, will move the cursor on by 1+8*4 bytes.
Both the above Go to and Skip functions have an undo option available which will move the cursor back to the location where the function was invoked.
Bookmarks
You may 'bookmark' a location in a file by using Set bookmark on the Edit menu then jump back to it at any time by using Go to bookmark from the same menu.
FileDump displays the contents of a file as a hexadecimal dump, and allows it to be edited.
The program is
J.D.Medhurst 1998. You may use and copy this progrom freely, under the condition that no charge of any kind is made for copies.
Please send any comments or reports of bugs to <tixy@clara.net>
About
Opening files
Printingp
A listing of a whole file can be made using the standard print menus available from Printing on the File menu.
(.txt)