Specifications

Chapter 12. Plugins 128
12.3.3. Frotz
Frotz is a Z-Machine interpreter for playing Infocom’s interactive fiction games, and
newer games using the same format. To start a game open a .z1 - .z8 file in the File
Browser. Most modern games are in the .z5 or .z8 format but the older formats used
by Infocom are supported.
Z-Machine games are text based and most depend heavily on typed commands. The
virtual keyboard is used for text entry, both for typing entire lines and for typing single
characters when the game requires single character input.
Sounds, pictures, colour and Unicode are not currently supported, but the interpreter
informs the game of this and almost all games will adapt so that they are still playable.
This port of Frotz attempts to be compliant with the Z-Machine Specification version
1.0.
Some places where you can find Z-Machine games, and information about interactive
fiction:
• The Interactive Fiction Archive, where many free modern works can be down-
loaded: http://www.ifarchive.org/
• The specific folder on the if-archive containing Z-Machine games: http://www.
ifarchive.org/indexes/if-archiveXgamesXzcode.html
• The Infocom homepage, with information about how to get the classic commercial
Infocom games: http://www.csd.uwo.ca/Infocom/
• The Frotz homepage (for the original Unix port): http://frotz.sourceforge.net/
• A Beginner’s Guide to Playing Interactive Fiction: http://www.microheaven.com/
IFGuide/
Key Action
Play Display keyboard to enter text
Select Press enter
Home Open Frotz menu (not available at MORE
prompts)
Long Home Quit
12.3.4. Image Viewer
This plugin opens image files from the File Browser to display them. Supported
formats are as follows.
The Rockbox manual (version rUnversioned directory-150516) Sansa Fuze