Chip-8 Emulator - Toshiba Gigabeat F Manual

Rockbox firmware manual
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Chapter 11. Plugins
How to use .link files, i.e. jump to desired places
To use a .link file just "play" it from the file browser. This will show you a list with the
entries in the file. Selecting one of them will then exit the plugin and leave you within
the directory selected, or with the file selected in the file browser. You can then play
the file or do with it whatever you want. The file will not be "played" automatically.
If the .link file contains only one entry no list will be shown, you will directly jump
to that location. The file shortcuts.link in the root directory is an exception. After
"playing" it, the list will be shown even if the file contains just one entry.
If the list you are seeing is from shortcuts.link in the root directory, you can delete
the selected entry by pressing Menu. Deleting entries from other .link files is not
possible.
Advanced Usage
Placing the line "#Display last path segments=n" (where n is a number) in the beginning
of a .link file will leave just the last n segments of the entries when they are shown. For
example, if n is chosen to be 1, then the entry /MyMusic/collection/song.mp3 will be
shown as song.mp3. This allows you to hide common path prefixes.
You can also provide a custom display name for each entry individually. To do so,
append a tabulator character after the entry's path followed by your custom name. That
name will then be used for showing the entry. For example:
/MyMusic/collection/song.mp3<TAB>My favourite song!

11.3.2. Chip-8 Emulator

Chip8 is a kind of assembly language for a long-gone architecture. This plugin runs
games written using the chip8 instructions. To start a game open a .ch8 file in the File
Browser
There are lots of tiny Chip8 games (usually only about 256 bytes to a couple of KB)
which were made popular by the HP48 calculator's emulator for them. The original
Chip8 had 64 32 pixel graphics, and the new superchip emulator supports 128 64
graphics.
The only problem is that they are based on a 4 4 keyboard, but since most games do
not use all of the buttons, this can easily be worked around.
To do this, one may put a .c8k file with the same name as the original program
which contains new key mappings (for BLINKY.ch8, one writes a BLINKY.c8k file). That
.c8k file contains 16 characters describing the mapping from the Chip8 keyboard to
the default key mapping (that way, several Chip8 keys can be pressed using only one
Rockbox key). For example, a file containing the single line:
0122458469ABCDEF
The Rockbox manual
Example
Code
(version 3.14)
Toshiba Gigabeat F and X Series
143

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