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Megademo< >Megademo

Megademo (Excellence)

download the install packageExcellence_Megademo.lha
created at2013-01-06
size of install package25061 Bytes
Author/Contact
(use it to report problems with that install)
StingRay
BitWorld18541
download images for that installftp.amigascne.org


 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/

Icons contained in install package

WHDLoad Slave information
Megademo.slave - 06.01.2013 14:18:46 - 2864 bytes
required WHDLoad version10
flagsNoError EmulTrap ClearMem
required Chip Memory512 KiB ($80000)
Expansion Memory0 KiB
info nameMegademo
info copy1990 Excellence
info installinstalled by StingRay/[S]carab^Scoopex
Version 1.00 (06.01.2013)

Install Archive Content Listing
UnpackedLvlMethodPackedOSDate/TimeName
15841lh51047Amiga2008-08-31 15:57:30Megademo_Install.info
359651lh59051Amiga2013-01-06 14:19:48Megademo_Install/Install
7111lh5359Amiga2013-01-06 14:17:00Megademo_Install/Install.info
3601lh5281Amiga2013-01-06 14:18:38Megademo_Install/Megademo.islave
115101lh52905Amiga2013-01-06 14:15:06Megademo_Install/Megademo.newicon
28641lh51754Amiga2013-01-06 14:18:46Megademo_Install/Megademo.slave
35041lh51910Amiga2013-01-06 15:02:14Megademo_Install/ReadMe
19901lh51310Amiga2000-09-11 00:37:22Megademo_Install/ReadMe.info
29591lh51034Amiga2013-01-04 11:20:28Megademo_Install/Source/Megademo_ImagerSlave.s
174161lh54762Amiga2013-01-06 14:02:36Megademo_Install/Source/Megademo_WHD.s

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last change : 2015-12-23
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