[Coco] The ultimate VCC hard disk image using EmuDsk

[Bill Pierce]

Barry, everything seems right but there's probably no offset in hdblba (0 by default from the repo). You need to set the offset to the size of the OS9 partition in sectors. I have no idea  what the offset would be, but it pokes into &HD938, &HD939, and &HD93A.
If it's a 256 disk RSDOS partition, the subtrack 41287680 (20643840 for 128 disks) from the total byte size of the VHD. Divide the os9 size by 256, this will give the sectors. Convert to hex, and poke those 3 numbers into the addresses above.

I just use a hex editor and edit the rom itself. Then I don't have to poke the offset every time. In a PC hex editor, the addresses would $1938, $1939 and $193A

 

 


Bill Pierce
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-----Original Message-----
From: Barry Nelson <barry.nelson at amobiledevice.com>
To: coco <coco at maltedmedia.com>
Sent: Fri, Nov 13, 2015 2:25 am
Subject: Re: [Coco] The ultimate VCC hard disk image using EmuDsk


I am putting the image in IDE Master. I am able to access it using /i0 under
NitrOS9, but HDBDOS does not see it. I did notice the vhd files did not show up
in browse, but I was able to type in the file name. I did have to change the /i0
device descriptor to use FF60 and change the ice settings in VVC to match so
that it did not conflict with EmuDisk if I wanted to use them both, but I set it
back to FF50, and disabled EmuDisk and HDBDOS still does not see it.

> Bill
Pierce ooogalapasooo at aol.com 
> Thu Nov 12 21:01:16 EST 2015
> 
> Barry,
where are you putting the VHD? If you are putting it in "HD Drive 0", then you
are not even using the SuperIDE. The SuperIDE'dll uses the "IDE Master" & "IDE
Slave" slots, which will not (by default) even accept a VHD image, only
"xxx.img" files. Not sure, but I think CF cards use FAT16 or FAT32 (I could be
wrong, they may use just files like VHDs) where VHD files are just a 'file'.|
>
If you are putting it in "HD Drive 0", then EmuDsk is using it in NitrOS9, not
SuperIDE. You're not going to access those drives in NitrOS9 without rbsuper,
llide, i0, and i1 installed.
> And hdblda will not access the "HD Drive 0" slot
from RSDOS, it is looking for "xxxx.img" to be in "IDE Master".


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