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Crawly Crypt Collection 1
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petra_e.txt
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1992-08-19
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**********************************************************************
* *
* PETRA.PRG - a Sound Driver which allows you to use PAULA on ST's *
* which don't have DMA-Soundhardware, written by Christian Limpach *
* *
* v1.0 20.8.1992 *
**********************************************************************
SHAREWARE:
----------
PETRA is Shareware, you can copy PETRA for free, as long as all files
stay together. You are not allowed to change any files. When you are
using PETRA more than some weeks, you _have_ to pay the shareware fee
(how you do this is explained at the end of this text...)
PETRA MAY be distributed through BBS's and Public Domain Pools.
© 1992 by Christian Limpach.
SYSTEM REQUIREMENTS:
--------------------
PETRA runs on all STs. There may be problems, if you have a 68030 CPU
as PETRA is highly optimized for a 68000 CPU and has some
selfmodifying code.
INSTALLATION:
-------------
You install PETRA by copying it into your auto folder. You can also
run it from the desktop. The only thing you have to care about is
that you run PETRA before PAULA, because otherwise PAULA won't work.
USER'S GUIDE:
-------------
The emulation of the DMA-Soundhardware takes a lot of CPU-time.
Therefore only the two low samplefrequencies are useful (6144 Hz and
9600 Hz) The top samplefrequency (12288 Hz) causes an overload
(that's when all the CPU-time is used...) if you just move the mouse.
This frequency is only to listen to a modfile without doing anything
else.
BUGS AND LIMITATIONS:
---------------------
Other software using Timer A may stop the replay. After this
a restart may not be possible. Sometimes this problem can be solved
by reloading PAULA.
INFOS for specialists and hardware guru's.
------------------------------------------
PETRA installs a cookie (SSND) which is used by PAULA to tell PETRA
what to play with which samplefrequency. You can get detailed
information about this interface from me.
PETRA changes some vectores using XBRA. The identification used is
SSND.
PETRA uses Timer A to do the sample output. The keyboard interrupt
routine is changed to allow sample outputs while the mouse is moved.
Keyclick & Bell are possible, but PETRA turns them off. Use the
control panel to turn them on again.
AUTHOR and how do I pay the shareware fee:
------------------------------------------
You can transfer the shareware fee to my bank account or send it by
post (sending it by post is better and easier, as the transfer costs
will probably be much too high) You can send any currencies...
Christian Limpach Shareware fee: anything around 200 LUF/10 DM
10, rue de Hobscheid Bank:
L-8422 Steinfort Banque Internationale A Luxembourg
Luxembourg account number: 4-132/1866
or through FIDONET:
Black Devil BBS Luxembourg, (Tel +352-398722, 300-14400 Bps V.32b)
2:270/20.1, Christian Limpach
or through INTERNET:
Christian_Limpach@p1.f20.n270.z2.fidonet.org
or on BBS:
Christian Limpach, ComNet Luxembourg, Tel: +352-222534
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