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 Bass.
This install requires WHDLoad and RawDIC 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 for preload).
It can be quit by pressing F10 (key can be changed with Tooltype "QuitKey=").
- Full load from HD (real files!)
- ColdCapture/CoolCapture patching disabled
- Blitter waits added (x2)
- Self-modifying code fixed
- Copperlist problem (part 5) fixed
- All OS stuff patched
- All decrunchers (TetraPack 2.2) relocated to fast memory
- Bplcon0 color bit fixes (x14)
- DMA wait in replayer fixed (x12)
- Byte write to volume register in replayer fixed (x6)
- Wrong write to INTENA (move.l instead of move.w) fixed (x2)
- Writes to read only registers fixed
- Interrupts fixed
- DMA settings fixed
- Reset patched quit quit back to DOS
- ButtonWait support for loader picture (any mouse button to start demo)
- 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 the very first megademo by Bass. While the
parts feature rather simple code the demo is still enjoyable, good
music and nice enough effects.
Code had a few problems but is quite OK, I had to add a few blitter waits
but these are not time-critical so they are also applied on 68000
machines. The only real bug was a long write to INTENA ($dff09a) so
instead of enabling the wanted interrupts they were just acknowledged.
Luckily for the coder the used interrupts were turned on by the OS
so this wasn't a problem when booting the demo from disk.
I have added ButtonWait support for the loader picture, if you enable
it you have to press either mouse button to start the main part
of the demo. That way you can listen to the sample loop for as long
as you want. :)
Enjoy this classic from HD. You can download it here:
Greetings to all in Scarab and Scoopex, the WHDLoad team, PMC,
Musashi5150, Skan, Slummy, Loaderror, Frequent, Wayne Kerr, Mr.Spiv,
Alpha One, CFou!, Paradroid and all the other usual suspects. :)
Special greetings to all Golf MK1 fans worldwide except those
lowlifes who "borrowed" my MK1 for a joyride!
Extra greetings to the usual suspects on #amigascne, see you all at
Revision 2014! :)
version 1.01 (05.01.2014)
- snoop problem in part 5 fixed (DMA enabled before copperlist
was properly initialised)
version 1.00 (30.09.2013) 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: