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Megademo 2< >Megademo 2

Megademo 2 (Vortex 42)

download the install packageVortex42_Megademo2.lha
created at2016-05-22
size of install package30484 Bytes
Author/Contact
(use it to report problems with that install)
StingRay
BitWorld1196
Pouët18992
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 Vortex 42.

 Requirements:
 -------------
 This install requires WHDLoad and RawDIC to be in the path.
 To install from a different drive than DF0: select installation mode Expert.

 The installed demo requires 0.5 MB ChipMem (+0.7 MB OtherMem for preload).
 It can be quit by pressing F10 (key can be changed with Tooltype "QuitKey=").


 Features:
 ---------
 - Full load from HD (real files!)
 - OS stuff emulated (SendIO, Forbid, Permit etc.)
 - Blitter waits added (x35)
 - Self-modifying code fixed
 - DMA wait in replayer fixed (x7)
 - Byte write to volume register fixed (x8)
 - Interrupt and DMA settings fixed
 - Byte write to color register fixed (x3)
 - Bplcon0 color bit fixes (x4)
 - ROM reads fixed (x3)
 - Random generator fixed
 - Timing fixed
 - CPU dependent delays fixed (x6)
 - ButtonWait support for loader part added
 - Interrupts fixed
 - 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 Vortex 42. It was requested
 some days ago and I spent about 10 hours the last 2 days creating it.
 The bootblock intro is not supported (yet) as it uses quite some ugly
 hacks in the code and also OS routines for drawing etc. I may support
 it in a later version of this patch but don't hold your breath, it's quite
 some work for not much benefit!

 Speaking of OS routines, in part 2 mathffp library was used to calculate
 the data for deforming the picture, I first tried to emulate it but wasn't
 successful and after a while I simply decided to include the precaluclated
 picture data in the patch. This might also be changed in a later version of
 the patch but yet again, don't hold your breath!

 Other than that there were a lot of ROM accesses to fix, these were mainly
 used to generate random data for starfields and to set interrupts which made
 the demo crash on anything else than Kickstart 1.2 machines. A lot of
 blitter waits and other fixes had to be applied as well which took a fair
 amount of time.
 
 I have added ButtonWait support for the loader part, use it if you want
 to listen to the loader tune. If enabled the parts won't start until either
 mouse button has been pressed.


 Ennjoy another classic from HD.
 Sting, 22-May-2016


 Greetings to all in Scarab and Scoopex, the WHDLoad team, PMC,
 Musashi5150, Skan, Slummy, Loaderror, Frequent, Wayne Kerr, Mr.Spiv,
 Alpha One, CFou!, Paradroid, Audiomonster, Vention, Slammer
 Axis, Tim, Triace, Britelite, Buzzer and all the other usual suspects. :)

 Special greetings to all Golf MK1 fans worldwide and all classic
 car owners/drivers. :)

 Extra greetings to the usual suspects on #amigascne, see you all at
 Revision 2016! :)


 History:
 --------

 version 1.00 (22.05.2016) done by StingRay:
 - initial release



 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 - 22.05.2016 18:50:14 - 5700 bytes
required WHDLoad version17
flagsNoError ClearMem
required Chip Memory512 KiB ($80000)
Expansion Memory0 KiB
info nameMegademo
info copy1988 Vortex 42
info installinstalled by StingRay/[S]carab^Scoopex
Version 1.00 (22.05.2016)
Kickstart name0
Kickstart size0 KiB ($0)
Kickstart checksum$0000
ConfigurationBW

Install Archive Content Listing
UnpackedLvlMethodPackedOSDate/TimeName
15841lh51046Amiga2007-09-05 23:15:12Megademo2_Install.info
398851lh59953Amiga2016-05-22 18:54:32Megademo2_Install/Install
7101lh5361Amiga2016-05-22 19:24:42Megademo2_Install/Install.info
3281lh5255Amiga2016-05-22 18:53:38Megademo2_Install/Megademo2.islave
133441lh54614Amiga2016-05-22 18:58:18Megademo2_Install/Megademo2.newicon
57001lh54975Amiga2016-05-22 18:50:14Megademo2_Install/Megademo2.slave
39321lh52108Amiga2016-05-22 19:28:12Megademo2_Install/ReadMe
14061lh5900Amiga2015-12-20 20:52:30Megademo2_Install/ReadMe.info
29561lh51068Amiga2016-05-21 10:12:08Megademo2_Install/Source/Megademo2_ImagerSlave.s
145381lh54541Amiga2016-05-22 18:49:18Megademo2_Install/Source/Megademo2_WHD.s

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last change : 2024-09-19
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