cpu: fix a potential exception

Sometimes its just not in the hands of software,
may the gods be with us.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
helpers: centralize file paths

Easier to maintain, reduced redundancy, smaller
footprint. There are a bunch of reasons why those
file paths should be in one place.
Lets see how this turns out.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
memory: show low mem option only for defy

For now its only really save to show this to defy users,
no questions will be asked.

Also adding some space here and there, it doesn't hurt.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>