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Megademo 2< >Megademo 2

Megademo 2 (Alcatraz)

download the install packageAlcatraz_Megademo2.lha
created at2014-01-04
size of install package23590 Bytes
Author/Contact
(use it to report problems with that install)
StingRay
Mantis BugTracker1127
BitWorld1954
Pout1329
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 2"  1988 Alcatraz.

 Requirements:
 -------------
 This install requires WHDLoad to be in the path.
 It 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 (+0.5 MB for preload).
 It can be quit by pressing F10 (key can be changed with Tooltype "QuitKey=").


 Features:
 ---------
 - Full load from HD
 - OS stuff patched/recoded (AllocEntry)
 - Self-modifying code fixed
 - All decrunchers (ByteKiller) relocated to fast memory and error check added
 - Bplcon0 color bit fixes (x4)
 - DMA wait in replayer fixed (x6)
 - Byte write to volume register in replayer fixed (x6)
 - Write to $dff000 disabled
 - Interrupts fixed
 - DMA settings fixed
 - Timing fixed
 - CPU dependent delays fixed (x2)
 - 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 second Megademo by Alcatraz which was released
 a few months after the first one. Nice music, graphics and code
 again, it's another demo that is still enjoyable almost 25 years after
 its initial release.
 Patching took a little while as Zodiac used some OS-functions such as
 AllocEntry in his parts which I had to emulate. There also were a few
 CPU dependent delays and the replayers had the usual bugs. The tune
 in the first part was played too fast because the counter in the replayer
 was increased by 2 instead of 1. I have no idea why the tune was played
 correctly on 68000 machines but anyway, it's now fixed.

 I have relocated all ByteKiller decrunchers as usual and added an error
 check so WHDLoad will quit with an appropriate error message if decrunching
 fails. Zodiac's parts were crunched with the HQC cruncher which is bascially
 ByteKiller for relocatable code i.e. the data won't be decrunched to a
 fixed address, quite nice actually for that time! These parts will be
 decrunched during installation.

 The demo can be downloaded here:
 ftp://ftp.amigascne.org/pub/amiga/Groups/A/Alcatraz/Alcatraz-Megademo2.adf

 Enjoy this great classic from HD and have a nice weekend everyone.
 Sting, 06-Oct-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 1.01 (04.01.2014)
 - fixed 2 more byte writes to volume register
 - write to $dff000 disabled

 version 1.00 (06.10.2013) 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/

Icons contained in install package

WHDLoad Slave information
Megademo2.slave - 04.01.2014 22:36:06 - 1864 bytes
required WHDLoad version17
flagsNoError ClearMem
required Chip Memory512 KiB ($80000)
Expansion Memory0 KiB
info nameMegademo 2
info copy1988 Alcatraz
info installinstalled by StingRay/[S]carab^Scoopex
Version 1.01 (04.01.2014)
Kickstart name0
Kickstart size0 KiB ($0)
Kickstart checksum$0000
Configuration

Install Archive Content Listing
UnpackedLvlMethodPackedOSDate/TimeName
15841lh51046Amiga2007-09-05 22:15:12Megademo2_Install.info
349321lh58744Amiga2013-10-06 01:50:26Megademo2_Install/Install
7101lh5353Amiga2013-10-06 01:49:16Megademo2_Install/Install.info
137161lh53876Amiga2013-10-06 01:44:06Megademo2_Install/Megademo2.newicon
18641lh51382Amiga2014-01-04 22:36:06Megademo2_Install/Megademo2.slave
38951lh52069Amiga2014-01-04 23:17:26Megademo2_Install/ReadMe
19901lh51310Amiga2000-09-10 23:37:22Megademo2_Install/ReadMe.info
132991lh54299Amiga2014-01-04 22:35:56Megademo2_Install/Source/Megademo2_WHD.s

Old Install Archives
Alcatraz_Megademo2-20131006.lha

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last change : 2015-12-23
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