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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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