[Coco] OS-9 Floppy / Printer configuration?

[Chad H]

Well I'm willing to take a crack at it. Yea I know my numbering scheme may
not be typical but hey...it suits me.  Anywhooo....how do I modify the
CCDISK table? From what you say about it being so much trouble, I would
guess it would be some sort of direct hex edit, that's the most troublesome
hacks I've ever had to deal with but I could just edit the .DSK image on PC
and look for the pattern that needs changing if that's the case.
- Chad

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of Robert Gault
Sent: Monday, July 26, 2010 7:48 AM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] OS-9 Floppy / Printer configuration?

Chad H wrote:
> Well the "move programs to NitrOS9" didn't work with DeskMate..haven't had
> time to try with others yet.  DeskMate tries to load under NitrOS9 but
exits
> almost immediately saying "NOT ENOUGH MEMORY".  The OS9 on the DeskMate
disk
> seems very stripped down. I'm thinking NitrOS9 is loading too many
modules.
> I even tried booting from original OS-9 disk and then loading DeskMate,
same
> error message.

Chad,

Level1 NitrOS-9 has an mfree result of 137 pages while Deskmate 1 gives 162.

That should explain the "NOT ENOUGH MEMORY" message.

It seems your main request is to use Deskmate 1 with the disk hardware on
your 
system. You have said the disks are assigned Top 0/1 and Bottom 2/3 in your
ROM 
but that may not be enough information. That just says what DIR0-DIR3 will 
access not what the values in the ROM drive table actually are. This is 
important as your easiest solution is to modify the CCDISK drive table on
the 
Deskmate disk to match your hardware.

On the stock Deskmate disk, the drive table values are at CCDISK bytes $209 
01,02,04,$40. These are the drive masks used to access the four floppies if
the 
modules are present in the OS9Boot file. Deskmate has only /d0 and /d1 in
the 
bootfile.
You probably need to change the table to match that in your ROM. My guess
would 
be your ROM table is 01,$41,02,$42 based on your description. The more usual

table would be 01,02,$41,$42 making the top drive 0/2 and the bottom 1/3.
Antway it looks like you need to change the CCDISK table to 01,$41,02,$42.

 From the thread I've been reading, that could be more trouble for you than
the 
effort is worth. Would you like me to e-mail you a modified disk?

Robert

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