Re: I demand an answer!

[puritan_2076@yahoo.com (Leon Howell)]

> When someone says electrical interface, just the pinouts
> is not an issue. There could be other more complex issues
> involved.

That's one reason I'd like to see the pinouts; so we can rule out
what's not the problem, and narrow down our search to something more
specific, like the controller chip or driver.

> Could be a simple patch, but I doubt it. If they
> used address lines A0-A3 to send commands to the
> drive, then maybe, but if they used A4-A7, then
> I kind of question whether you could "simply"
> write a patch that would work.

Hmm, I was about to demonstrate my ignorance by suggesting "simply"
changing the address lines used, but I have to remember we're talking
about an os written for one specific type of computer. I can just
imagine the mess that might make...

> Disk Drivers are
> not written in a straight thru, and loop to the
> beginning manner. They jump about in a rather
> erratic fashion. The firmware would need to be
> disassembled and studied in order to determine
> whether it would even be possible. Sorry to say
> that nothing is "that" simple. If it were, I would
> have had lots of software written by now.  8o)

"Simple" is a relative term, depending on both the os you're using and
if you're the end user or the programmer. Would it help to look at the
IIGS code? someone implied that the HD20 would work in a IIGS.