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 Excellence.
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!)
- Interrupts fixed
- DMA wait in replayers fixed (x16)
- Byte write to AudXVol in replayers fixed (x8)
- Decrunchers relocated to fast memory
- Bplcon0 color bit fixes (x35)
- Wrong branch in one interrupt fixed
- Source code included as usual
- NewIcon (created by me)
- Quit option that works on 68000 machines (default key is 'F10')
Welcome to my first WHDLoad patch in 2013. Reason for making this patch
was a rather pragmatic one. I was checking some old demos during the
Christmas holidays and this one just didn't work correctly. So I was
curious and tried to find the reason for this, it was caused by wrong
checks in the interrupts for the interrupt request. The btst instruction
which was used to check the interrupt request works with bytes only when the
destination is a memory location thus the btst #x,$dff01e instruction checked
the wrong bits causing the interrupt not work correctly. Same problem kept
me busy for a while in the part with the many scrollers, here bset was used
to enable the CDANG bit which caused all kinds of strange unpredictable
problems. It's interesting how these rather simple mistakes cause such major
problems.
Other than that the code is quite OK and the demo, while not being the most
interesting one, is quite entertaining to watch so enjoy it from HD now.
You can download it here:
ftp://ftp.amigascne.org/pub/amiga/Groups/E/Excellence/EXCELLENCE-Megademo.dms
Happy New Year everyone!
Sting, 06-Jan-2013
Greetings to all in Scarab and Scoopex, the WHDLoad team, PMC,
Musashi5150, Skan, Slummy, Loaderror, Frequent, Wayne Kerr, Mr.Spiv
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 2013! :)
History:
--------
version 1.0 (06.01.13) 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/ |
