so, I can play in Elite on my GPL-compatible mp3 player...

12.3.18 ZXBox
Figure 12.44: ZXBox
ZXBox is a port of the “Spectemu” Spectrum emulator for Rockbox
(https://sourceforge.net/projects/spectemu/). To start a game open a tape file or snapshot saved as .tap,
.tzx, .280 or .sna in the file browser.
Note: As ZXBox is a emulator only loading of snapshots is possible.
Default keys
The emulator is set up for 5 different buttons: Up, Down, Left, Right and Jump/Fire. Each one of these can
be mapped to one key of the Spectrum Keyboard or they can be used like a “Kempston” joystick. Per default
the buttons, including an additional but fixed menu button, are assigned as follows: