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 Humanoids.
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 (+0.6 MB for preload).
It can be quit by pressing F10 (key can be changed with Tooltype "QuitKey=").
- Full load from HD (real files!)
- ColdCapture patching disabled
- Blitter waits added (x41, only enabled on 68010+ machines)
- Blitter wait patches can be forced on 68000 machines with CUSTOM1
- Self-modifying code fixed
- All OS stuff patched
- CPU dependent delays fixed
- All decrunchers (TetraPack 2.2) relocated to fast memory
- Bplcon0 color bit fixes (x4)
- DMA wait in replayer fixed (x9)
- Byte write to volume register in replayer fixed (x6)
- Interrupts fixed
- DMA settings fixed
- 3 NewIcons (created by me)
- Source code included as usual
- Quit option that works on 68000 machines (default key is 'F10')
Here's the patch for Humanoid's Megademo which is still entertaining
to watch, it's actually another one of my old favorite demos.
Really nice parts, good graphics and music here. Creating the
patch took quite some time even though the code is rather good.
The plasma code is nicely optimised and uses all registers including
a7 in the innerloop. I had level 2 interrupts enabled for checking
the quit key which resulted in graphics corruption in the plasma.
Took me a little while to find the reason, this kinda annoyed me
because I had disabled interrupts already because I noticed that
a7 was used in the innerloop but forgot about the level 2 interrupt.
Anyway, after about an hour of checking the code and trying various things
I finally fixed the problem. During that hour I created quite a few
interesting incarnations of the plasma part. :)
Other than that there was some self-modifying code used which I have fixed,
the only exception here is the "Evolution" part, there's such an amount of
SMC used that I decided to simply disable the cache, I may fix all the SMC
in a later version of the patch. Some blitter waits had to be added too,
these patches are only installed on machines with a 68010+ CPU, to force
the blitter waits on 68000 machines you can use CUSTOM1=1.
Enjoy this really nice 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 1.00 (01.10.2013) 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: