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" © 1988 Megaforce.
Requirements:
-------------
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 (+0.7 MB for preload).
It can be quit by pressing F10 (key can be changed with Tooltype "QuitKey=").
Features:
---------
- Full load from HD (real files!)
- All OS stuff patched
- Blitter wait added
- Decrunchers (ByteKiller, RLE) relocated and error check added
- Color flashing during decrunching can be enabled with CUSTOM1
- DMA wait in replayer fixed (x3)
- Byte write to volume register in replayer fixed (x3)
- DMA settings fixed
- Interrupts fixed
- CPU dependent delay loops fixed (x8)
- Graphics problems caused by wrong load address fixed (part 2)
- 3 NewIcons (all created by me)
- Source code included as usual
- Quit option that works on 68000 machines (default key is 'F10')
Finally this one is finished too, started it 3 days ago when I arrived
at work and had an almost fully working patch after a while.
Back home I tested it, fixed some minor things and encountered problems
with 2 of the parts. These took a little while to fix as I had to
find the reason for the problems. Part 2 had trashed colors which was
caused by loading the part too high into memory. No idea why that
caused the trashed colors but using a slightly lower load address
fixed the problem. The other problem were graphics bugs in the
scroller in part which appeared on fast machines. A blitter wait
fixed the problem. There also were a few CPU dependent delay loops
which I had to fix of course. Other than that there were no major
problems with the code.
All but one parts were crunched with ByteKiller, I have relocated
the decruncher and added an error check, if decrunching fails WHDLoad
will quit with an appropriate error message. If you like the flashing
colors during decrunching that were in the original demo you can enable
them with the CUSTOM1 tooltype. 1 part has been crunched with a simple
ByteRun cruncher, I have relocated and slightly optimised that decruncher
too but there's no error check.
Apparently Crazy Typer's assembler had a bug as in the original
ByteKiller decruncher the instruction to calculate the checksum
(which wasn't checked anyway) was incorrect. Instead of "eor.l dx,dy"
it was "cmp.l dx,dy".
Enjoy yet another classic demo from HD and have a nice summer everyone.
Sting, 17-Aug-2013
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! :)
History:
--------
version 1.00 (17.08.2013) done by StingRay:
- initial release
- source code included
Contact:
--------
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:
http://www.whdload.de/
or aminet:dev/misc/whdload#?
and aminet:game/patch/ |
