CoCoMax for the Dragon

Use this forum to submit new files for the download section of the archive. I will check each submission and upload it to the archive on a regular basis.
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KenH
Posts: 182
Joined: Fri Oct 12, 2012 9:50 am

CoCoMax for the Dragon

Post by KenH »

One of the cool things about Drivewire and HDBDOS for the Dragon, is that it makes it easier to port CoCo based disk programs over to the Dragon.

CoCoMax is one of those programs I've always wanted to have on my Dragon 64. It is a mac paint clone for the CoCo that was (and still is) an amazing demonstration of the 6809's power.

You can read a nice review from 1985 here https://archive.org/stream/undercolor-n ... 9/mode/2up
It is a reviewers duty to help you to decide whether you want to buy a product; I have
the perfect way for you. Go to your local computer store, sit down and play with
Macpaint, and if you like what you see ... save yourself $1500 and get CoCo Max! There
have been few CoCo programs that revolutionize the use of our computers. For me CoCo
Max is one of those programs. It is one of the top three CoCo programs ever written.
With HDBDOS available for the Dragon (thanks Tormod :) ) all that was needed to port CoCoMax to the Dragon was replacing some JSRs to ROM calls.
I was having a hard time at first, because apparently there is an error in the Close File $A42D reference on http://dragon32.info/info/romref.html. Once I crossed checked with Tormod's table http://sourceforge.net/p/toolshed/code/ ... vs.asm#l94 all was well.

Image

The attached version works perfectly under XRoar/HDBDOS -Becker.
It's based on a version that was cracked back in 1986 to use a regular mouse/joystick instead of the HiRes mouse.
Just type RUN"COCOMAX.BAS". 64K is required.
Using Drivewire on my Dragon 64 the program runs fine but trying to save/load from disk causes a disk error. Any ideas why this happens?
Attachments
CocoMaxD.dsk
CoCoMAX for Dragon/HDBDOS
(157.5 KiB) Downloaded 219 times
KenH
Posts: 182
Joined: Fri Oct 12, 2012 9:50 am

Re: CoCoMax for the Dragon

Post by KenH »

I have managed to get disk save/load working also on a real Dragon (with Drivewire) using a different CoCoMax source disk.
Apparently, there are a couple of CoComax versions on the web which use different methods to remove the Hires joystick routines.

The attached version (based on the "Krakomax" release) works both on XRoar and on the Dragon 64 (HDBDOS in ROM is required).
To load a file, select load page and type the filename without an extension. Note that file names are case sensitive.
Attachments
Coco Max II (Krakomax)-Dragon.dsk
CoCo Max II for the Dragon/Drivewire
(157.5 KiB) Downloaded 279 times
KenH
Posts: 182
Joined: Fri Oct 12, 2012 9:50 am

Re: CoCoMax for the Dragon

Post by KenH »

Tim Linder made a nice video about CoCoMax vs. MacPaint
http://youtu.be/4GxRr5tkSPk
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