About the Authors of RiscOS Frotz
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Frotz engine by Stefan Jokisch
RiscOS port  by Musus Umbra

RiscOS Frotz also makes use of the following:
Dominic Symes' ZapRedraw module (for the screen display)
Philip Banks' DataVox module (for sound effects)
and was created using DeskLib ”The FreeWare C library for RISC OS machines•

The Frotz engine is © Stefan Jokisch
The RiscOS specific front-end is © Musus Umbra
The ZapRedraw module is © Dominic Symes
The DataVox module is © Philip Banks


About the Frotz Engine
~~~~~~~~~~~~~~~~~~~~~~
In Stefan's words:
FROTZ V2.01 - an interpreter for all Infocom games.
Complies with standard 0.2 for all games except V6 (graphic) games.
Written by Stefan Jokisch in 1995-96.

This program evolved from Mark Howell's Zip. Although the source code is
completely re-written, one can still find traces of Zip.
Frotz is freeware: It may be used and distributed freely provided no
commercial profit is involved. (c) 1995, 1996 Stefan Jokisch.


About the RiscOS port
~~~~~~~~~~~~~~~~~~~~~
Frotz was ported to RiscOS by Musus Umbra in 1996-7.
Actually, the first working port was finished at the start of December '96,
but lacked all the bells and whistles.  Consequently I immediately started
work on version 2, an almost complete re-write of the initial port (which
has been delayed somewhat by illness and other pressing matters).

I would particulary like to thank Stefan for making Frotz so easy to port
(the very first non-desktop 'just to see if it works' port took about 10
mintues :-)


Contacting Stefan
~~~~~~~~~~~~~~~~~
Stefan's e-mail address is jokisch@ls7.informatik.uni-dortmund.de, however,
please don't send bug reports there when my front-end crashes - these
errors are almost certainly *my* fault, so tell me about them!