THIS PACKAGE COMES WITH ABSOLUTELY NO WARRANTY OF ANY KIND, EITHER EXPRESS OR
IMPLIED, STATUTORY OR OTHERWISE. THE ENTIRE RISK AS TO USE, RESULTS AND
PERFORMANCE OF THE PACKAGE IS ASSUMED BY YOU AND IF THE PACKAGE SHOULD PROVE
TO BE DEFECTIVE, YOU ASSUME THE ENTIRE COST OF ALL NECESSARY SERVICING,
REPAIR OR OTHER REMEDIATION.
UNDER NO CIRCUMSTANCES, CAN THE AUTHOR BE HELD RESPONSIBLE FOR ANY DAMAGE
CAUSED IN ANY USUAL, SPECIAL, OR ACCIDENTAL WAY, ALSO IF THE OWNER OR A THIRD
PARTY HAS BEEN POINTED AT SUCH POSSIBILITIES OF DAMAGE.
This install applies to "Techtech" © 1987 Sodan & Magician 42.
This install requires WHDLoad and DIC to be in the path.
These programs can be found in the WHDLoad package.
To install from a different drive than DF0: select installation mode Expert.
The installed demo requires 0.5 MB ChipMem (+0.9 MB OtherMem for preload).
It can be quit by pressing F10 (key can be changed with Tooltype "QuitKey=").
- Full load from HD
- OS stuff patched (InitRastPort, Draw, SetAPen etc.)
- ROM accesses fixed
- Timing fixed
- Access fault fixed
- Interrupts fixed
- NewIcon (created by me)
- Source code included as usual
- Quit option that works on 68000 machines (default key is 'F10')
Here's the patch for one of the real classics of the early Amiga
scene! This demo by Sodan and Magician 42 was released in November 1987
and is one of the first (if not the very first) Amiga trackloading demos!
If any demo deserves a WHDLoad patch is this one without any doubt!
I made 99% of the patch in a few hours back in January 2012 already and
then it collected dust on my HD for about 3 years as I didn't write the
necessary code to emulate the graphics.library routines used in the very
last part. This has now finally been fixed and the patch is finished and
I'm quite happy about that!
The code is quite good for such an early demo but there were a few
problems, interrupts were acknowledged by jumping to the relevant routines
in the Kickstart ROM which was the reason that the demo only worked on
Kickstart 1.2 machines. There also were some CPU dependent delay loops
and an access fault in the last part but I'm quite surprised how good and
clean the code actually is. Then again it was made by Sodan and he sure
was a great coder on C64 and Amiga too!
The timing in part 3 (the one which gave a certain effect its name) is not
100% correct, should I be REALLY bored one day I may fix it but it's highly
unlikely as I already spent too much time with the timing fixes and it's not
a major problem anyway.
Enough said, enjoy this classic from HD!
Greetings to all in Scarab and Scoopex, the WHDLoad team, PMC,
Musashi5150, Skan, Slummy, Loaderror, Frequent, Wayne Kerr, Mr.Spiv,
Alpha One, CFou!, Paradroid, Audiomonster, Bonefish, Vention,
Slammer and all the other usual suspects. :)
Special greetings to all Golf MK1 fans worldwide and all classic
car owners/drivers. :)
Extra greetings to the usual suspects on #amigascne, see you all at
Revision 2015! :)
version 1.00 (30.03.2015) done by StingRay
- initial version
- source code included
If you have problems with this installation please try and get a newer
version of this package from the WHDLoad WWW-Page. If that doesn't help try
some Tooltypes like NOCACHE, NOAUTOVEC, EXPCHIP, NOMMU, PAL or NTSC. If
that also fails, please inform the author via the Bug-Report-Form which
can be accessed on the WHDLoad WWW-Page.
For the full WHDLoad package, other installs and updates refer to: