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
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.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.
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.
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?