This new application is part of the OZ 4.5 Operating System.
The Z88 when it was introduced had two ways of saving files.
The RAM pack is good. It is convenient and quick to use. The downside of it is that if the Z88 goes wrong or the batteries go flat, the files saved there will have gone. EPROM packs are really useful. They can store the files, which remain there even when the RAM has lost them. The disadvantage was that to erase the files, they needed to be exposed to UV light. This meant that 20 minutes, a mains supply and an EPROM Eraser was required.
When the Flash chip appeared it could save files like the EPROM but it had these advantages.
FAST ERASING - takes less than ten seconds to erase 1024K bytes. FAST SAVING - takes three seconds to save a 20K file. LOW POWER - uses a 1/10 of the power used by a standard EPROM.
This meant that the erasing could be done whist the chip was in the Z88. For the Z88 to use it, an additional application needed to be written. Flashstore is the result.
Running the Application
To start the application either move the cursor down to the FlashStore (the application name in the command window in the Index) or start it with J
Flashstore supports all the cursor movement commands. These are useful when moving up and down in the FILE AREA or for moving the cursor to the beginning or end of line before editing.
Beginning of line
Top of the list
Back a word
Up a screen
Back a character
Up a line
Down a line
Forward a character
Down a screen
Forward a word
Bottom of the list
End of line
Pressing the key displays all the commands for quick reference.
Pressing the key displays the following screen.
Simple help description's are available for each menu command; press key and position the cursor on command you want help for, then press .
The three windows (from left to right) are:-
The COMMAND window - selects the mostly used commands The FILE AREA window - displays, fetches and deletes files and shows you what flashstore is doing. The INFORMATION window - displays device statistics and commands.
The COMMAND Window
Seven commands are quickly available by moving the cursor with the and arrow over the command, then press the key.
This information is shown in the information window whilst the file area window is in use.
The COMMUNICATION Window
When executing Flashstore commands the COMMUNICATION window replaces the FILE AREA window. It displays the following:-
Banner with the command name
Relevant statistical information to allow informed choices.
The filename already loaded in the command line ready for editing if required.
Warnings - if files are being overwritten or deleted.
Press or at the end to leave the window.
The INFORMATION window
This displays two sets of information.
1. When the cursor is in the COMMAND window it shows the following:-
which slot you are using in the Banner
Flash Chip Number or EPROM and Size
File Area Size
A Graphical Display of the complete file area. Deleted (grey), Saved files (black) and free area (white) give a quick indication of file usage and whether it is time to reformat the device and get rid of the deleted area.
Free and Used Space in bytes up to 1K or Kbytes
Number of Deleted and Saved files.
2. When the cursor is in the FILE AREA window it shows the following:-