[Coco] HDBDOS >>DRIVE OFF

[Christopher Smith]

So you need to find the operation that initializes it from somewhere else, then?

Chris

----- Original Message -----
> From: "Chad H" <chadbh74 at hotmail.com>
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Sent: Saturday, October 5, 2013 10:55:31 PM
> Subject: Re: [Coco] HDBDOS >>DRIVE OFF
> 
> crap... was about to flash and realized that address is not part of
> HC000 rom space ugh...
> 
> Sent from my Asus Transformer Infinity
> 
> Chad H <chadbh74 at hotmail.com> wrote:
> 
> Well i may have found the "trick" I was looking for.  I wrote a quick
> & dirty BASIC program to toggle DRIVE ON/OFF while scanning
> addresses and looking for changes...started at drive table area in
> the 65500 range going backwards.... should have started from 0
> upwards LOL...
> 
> key address seems to be at decimal 334.  poking a 0 here seems to put
> in DRIVE ON mode (rom default).   poking a 4 here made it access
> physical floppy just like DRIVE OFF.   These are the values returned
> from PEEKing that address after issuing that command as well....
> 
> Now time to test...  I will flash a modded HDBOS rom in my FD502
> controller and see if it autoboots floppy..  crossing fingers...
> Sent from my Asus Transformer Infinity
> 
> Robert Gault <robert.gault at att.net> wrote:
> 
> Chad H wrote:
> > yea but that would only work with from DriveWire disk#0 which i'm
> > trying to have the option of doing without... physical floppies
> > only.  HDBDOS may have been made for hdd setups but it enhances
> > the floppy experience as well.
> >
> 
> Hmmm, there was a function in RGBDOS that made drives 0-3 floppies if
> a hard
> drive was not present. Still AUTOEXEC.BAS was not automatically run
> from floppy
> drive 0.
> HDBDOS for Drivewire will not even automatically switch to floppies
> if Drivewire
> is not running or there is no drive mounted in DW drive0.
> 
> 
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-- 
Christopher Smith
Systems Engineer, Wolfram Research