[Coco] DECB and BACKUP

[Ron]

Hi Robert,

I have RGBDOS and HDBDOS, including the one with Drivewire support. It 
looks like I may need to go the DW option.  I've been trying to do this 
with a gray cased Coco 1 "F" board version with 64K, a gray edition MPI, 
an original RS Disk Basic Cart in Slot 4 and the CoCoSDC in Slot 3, 
selector switch on 3.

DRIVE 0, OFF
DRIVE 1,"DISK0001.DSK",NEW
BACKUP 0 to 1

Rinse and repeat, changing the filename between disks.

If I do this with Drivewire, HGBDOS and a Coco 3, is there a way to 
premount multiple floppies (in drivewire) so I can just use a BASIC 
program, increment the drive number and swap floppies?  Is 4 the limit 
in Drivewire?

Thanks!

-Ron




On 8/30/2015 6:17 PM, Robert Gault wrote:
> Ron wrote:
>> Hi everyone,
>>
>> Is there a way to do BACKUPs in DECB without it clearing the contents 
>> of the
>> BASIC program in memory?
>>
>> I'm trying to transfer many floppy disks to a CoCoSDC and the BACKUP 
>> command
>> works great.  I wrote something that helps speed the process up, but 
>> the BASIC
>> program is gone when the BACKUP operation completes.  I thought I 
>> remember
>> reading something about BACKUP needing as much RAM as it can to do 
>> what it
>> does.  I'm just looking for a way around this so the running program 
>> will continue.
>>
>> Thanks!
>>
>> -Ron
>>
>>
>
> That is a failure of the Tandy Disk Basic. If you are able to replace 
> your Disk ROM with RGBDOS or HDBDOS, then the Backup command will not 
> erase programs in memory. HDBDOS is available in a LOADM format for 
> the Coco3 so you won't need to burn an EPROM for that unit.
>
> I can supply RGBDOS for a Coco3. HDBDOS with Drivewire access can be 
> had from
> https://sites.google.com/site/dabarnstudio/the-color-computer-drivewire4-hdbdos-nitros9-starter-kit 
>
>
> The easiest way to get many different versions of HDBDOS is by 
> compiling Toolshed. That however is not for beginners.
>
> Robert
>
>