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 "Music Disk 3" © 1991 Vega.
This install requires WHDLoad and DIC 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 (+0.9 MB for preload)
It can be quit by pressing F10 (key can be changed with Tooltype "QuitKey=").
- Full load from HD
- OS stuff patched/emulated (DoIO, ScrollRaster, RectFill etc.)
- Self-modifying code fixed
- Interrupt problems fixed
- DMA wait in replayer fixed (x2)
- Byte write to volume register fixed
- Bplcon0 color bit fixed (x4)
- Access faults fixed (replayer was initialised before loading a module)
- Decruncher (ByteKiller) relocated to fast memory and slightly optimised
- CPU dependent delay loops fixed (x9)
- NewIcon (created by me)
- Source code included (also on Github, link below)
- Quit option that works on 68000 machines (default key is 'F10')
I had started the patch for this music disk back in 2015 already, but did
not finish the required code for emulating certain graphics library functions.
I now started the patch from scratch (as I actually did not remember that
I already started it some years ago) and added all the required code to
emulate the OS functions.
The demo uses ScrollRaster and RectFill graphics library functions to
draw the analysers. Creating the emulation code took quite a while, I needed
about 8 hours total to create all patch code, most of that time was spent
creating the graphics library emulation code.
The latest version of the source for this patch can be found on
my Github: https://github.com/MK1Roxxor/WHDLoad_Patches/blob/master/Demos/Vega_MusicDisk3_WHD.s
Enjoy the music disk from HD.
version 1.00 (03.09.2023) done by StingRay:
- initial release
- source code included
If you have problems with this installation please try and get a newer
version of this package from the WHDLoad WWW-Page.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: