Re: Problem: Can't Run RobotOdyssey on IIGS

[scalar@blues.jpj.net (Scalar)]

uDecker (udecker@hotmail.com) scribbled out the following:
: There seems to be a problem with running this old peice of software on a
: IIGS, regardless of what ROM version is installed... I'm not sure why.

It will probably load on a IIe.

Some programs are dependant on finding a certain chunk of machine code in
disk controller slot ($C600-C6FF) to boot.

The IIgs has different code in there than the IIe, so these programs will
fail to load.


The Technical solution:

You'd have to figure out what the boot sector (track 0, sector 0) is
trying to run on the disk controller, and then duplicate that code somehow
in the boot sector. That way the program will boot whether or not it finds
the IIe disk controller.

-Scalar