Overlay Dataset in Direct Mode

Overlay datasets in direct mode have a special position using key overlaying.

While it seems to be useful to give the overlay positions and their overlay values in a separate (symbolic) way (in metasyntax) using “small” keys in connection with CODING1, this action is completely unsuitable using “big” keys in connection with the other programs to generate a “random selection” key of the available key room of the respective program.

That is why the method of key overlaying is expanded especially with regard to CODING2 and CODING3.

First you can choose more than one overlay dataset in accordance with Information to Datasets to process and all these datasets are operated as one overlay unit (see Processing Form and Statistics) To do so, you can insert a dataset name covering overlay datasets enclosed in round brackets (’(’, ’)’), a directory name enclosed in square brackets (’[’, ’]’) or enclosed in angle brackets (’{’, ’}’) in the overlay information input field. By clicking on the “folder” symbol, you can start the directory choose dialogue and select a directory too if the first character in the input field is one of the brackets ’[’ or ’{’.

Second in this process the overlay datasets are used to overlay the initial key not only once but multiple, what further more is called iteration of this overlay unit.

Without modification of the overlay unit each also this approach doesn’t supply much more “chance” because at least the concerned positions in the initial key mentioned by the overlay unit would be the same in every stage.

In fact the original overlay datasets are used to modify the key only once. At the second and following stages the overlay unit itself is continually encoded (!) before overlaying the initial key again. For encoding the overlay unit, parameters are used which are initialised themselves by the initial key.

There are two big advantages in this way:

§ Not depending on the “chance nature” and therefore the quality of the overlay datasets, extreme chance overlay information is generated by using the coding method presented here on the overlay unit.

§ The quality of overlaying doesn’t depend on the length of the overlay unit.

As shown by examinations of the author, after approx. (x = length of overlay unit in bytes)

1,410 / x (CODING1) 1,441,452 / x (CODING2) 854,889,360 / x (CODING3) iterations

the derived key is not any longer differ from a “chance” key.

That is why the program asks you for the iteration value along with the names of the overlay datasets if using overlay datasets in direct mode.

If the iteration field isn’t selected i.e. hasn’t the focus, the field information is displayed as stars. If the iteration field is selected, the contents of this field only is visible if the mouse pointer is located or moved in the central region of this field. If the mouse pointer slowly leaves the central region of this field, then the information is hidden. Regardless of that marked field parts are always visible.

The iteration field is only responsive or visible by handling overlay datasets in direct mode.

Position, overlay value, and key value interval information are of main interest to overlay datasets in direct mode. In direct mode every dataset can be set as an overlay dataset, program module datasets (*.COM, *.EXE) and other binary datasets too.

Using overlay datasets in direct mode, please notice that line end characters are part of the overlay information and not ignored.