[Coco] VCC2.0.1 and DriveWire

Barry Nelson Barry.Nelson at amobiledevice.com
Mon Oct 19 14:23:46 EDT 2015


I wrote a program that can copy between the DECB disk slots of a HDBDOS drive, as well as copy to or from actual floppy disks called HDBack. It is written in BASIC and runs on a CoCo 3 with HDBDOS and 512k of ram. It also copies single sided 35 and 40 track floppies in a single pass. I will try to post a link to it this evening. I had previously emailed it to a couple of people on this list.

 

>        Aaron Wolfe aawolfe at gmail.com  <mailto:coco%40maltedmedia.com?Subject=Re%3A%20%5BCoco%5D%20VCC2.0.1%20and%20DriveWire&In-Reply-To=%3CCAA6uQZTDf25Cy4mN40yDTZ5zjktQoFDB583u_BPQVxDdXiLS5g%40mail.gmail.com%3E> 
Mon Oct 19 09:49:29 EDT 2015 

 
>         Ah..  In this case then you definitely do not want "HDBDOS mode" enabled.
>         HDBDOS Mode uses the LSN to direct requests to drive slots on the DW side.
>         Handy for single floppy disk images, totally wrong for anything else :)
>         Booting into NitrOS9 will automatically disable HDBDOS mode if it detects
>         that it is on, but that may not be enough to ensure you're set correctly
>         all the time.
 
>         You could access both the OS9 and the DECB disk portions of such a file
>         using the offset as Robert mentioned.  If you need to copy between DECB
>         disk slots inside the VHD that might be handy.
 
>         -Aaron

 



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