[Coco] HDBDOS/drivewire discovery

[Bob Devries]

Willard, you said:

> It certainly doesn't look bad.  Every example of your code that I've
> seen has been clean and readable.

Thanks for the kudos. IMHO, I could have commented the code better (or at 
all).
My later source was better documented. RSDIR was written 1995-97!! Like most 
of my code, it was written to fill a need I had for my own system.

Regards, Bob Devries
Dalby, QLD, Australia

----- Original Message ----- 
From: "Willard Goosey" <goosey at virgo.sdc.org>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Saturday, January 14, 2012 5:34 PM
Subject: Re: [Coco] HDBDOS/drivewire discovery


> On Sat, Jan 14, 2012 at 05:15:48PM +1000, Bob Devries wrote:
>> My RSDISK programme was written to access the files on a virtual disk 
>> image
>> file. At the time, I did not envisage having multiple "disks" in a file.
>>
> Yeah, it was before people started passing around *hard drive* images
> in addition to floppy images.
>
>> Having said that, it should be quite trivial to modify the source (which 
>> is
>> included in the archive on RTSI) to ask the user for a disk number (0 to
>> 255), and multiply that by 161280 to get the offset to the wanted disk in
>> the image file.
>
> It certainly doesn't look bad.  Every example of your code that I've
> seen has been clean and readable.
>
>> The only caveat I can think of is that for the above offset to work
>> correctly, the disks in the image *must* be 35 tracks, 18 sectors and 256
>> bytes per sector.
>
> Which RGBDOS/HDBDOS images are.  Pretty much by definition, I believe.
>
> Willard
> -- 
> Willard Goosey  goosey at sdc.org
> Socorro, New Mexico, USA
> I search my heart and find Cimmeria, land of Darkness and the Night.
>  -- R.E. Howard
>
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