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 "Megademo" © 1990 Darkness.
This install requires WHDLoad and DIC to be in the path.
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
- Self-modifying code fixed
- Interrupts fixed
- DMA wait in replayer fixed (x12)
- Byte write to volume register fixed (x11)
- Bplcon4 access removed (x4)
- Write to DMACONR disabled (x2)
- DIWSTRT/STOP problems fixed
- OCS only DDFSTRT fixed (x5)
- Interrupt settings fixed
- Blitter waits added (x9)
- Bplcon0 color bit fixes (x12)
- NewIcon (created by me)
- Source code included
- Quit option that works on 68000 machines (default key is F10)
The patch for this classic demo was requested a few days ago on EAB. Took a
little while to do as there were quite a few problems to fix and the code
isn't exactly great. There were a lot of copperlist problems, mainly wrong
DDFSTRT values which only worked on OCS machines. In one part the
DIWSTART/STOP settings were completely missing, there were writes to
read only only registers, ECS/AGA registers were accessed by accident, the
replayers had the usual DMA wait and volume bugs and some blitter waits were
needed as well.
Despite the not too great code the parts are still enjoyable and there's a
lot to see. The demo features an "auto mode", if you don't move the helicopter
in the main menu for 15 seconds the demo will run the parts automatically.
Enjoy the demo 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, Vention, Slammer
Axis, Tim, Triace, Britelite, Buzzer 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 2017! :)
version 1.01 (29.09.2017)
- Piston part was not executed due to wrong quitkey check (Mantis #3726)
version 1.00 (22.03.2017) done by StingRay:
- initial release
- 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: