[Coco] OS-9 sector allocation bitmap AKA LSN 1

[Gene Heskett]

On Sunday 02 September 2012 18:13:49 Willi Kusche did opine:

> Hi!
> 
>     While working on programs to convert OS-9 disk images from Apple
> II format to CoCo format and back I noticed that bit zero of the last
> bitmap byte is apparently set in all disk images I examined.  I looked
> at about a dozen CoCo disk images and two Apple II images and bit zero
> of the last bitmap byte was set in all of them.  Can anyone enlighten
> me as to why this is so?
> 
> Willi
> 
The numbering system, at least in os9, is base 0. AFAIK, free reports the 
correct data, and it gets it from the map sectors.

> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco


Cheers, Gene
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: <http://coyoteden.dyndns-free.com:85/gene> is up!
If you want to travel around the world and be invited to speak at a lot
of different places, just write a Unix operating system.
		-- Linus Torvalds