[Coco] How to create an 80 track 2 sided disk with SDC
nickma at optusnet.com.au
Thu Dec 17 03:43:51 EST 2015
On 17/12/2015 9:52 AM, Darren A wrote:
> SDC-DOS will not access the 2nd side of a double-sided DSK image. The trick
> used in DECB for floppy disks (patching the drive selects table) will not
> If you just want to create an 80 track, double-sided image for use with
> OS-9, you can try the following commands:
> DRIVE 1, "NEWDISK.DSK", NEW
> DRIVE 1, 4
> DSKO$ 1,19,18,"",""
> DRIVE 1,UNLOAD
> All this does is enlarge the size of the DSK file to hold 2880 sectors (2
> sides * 80 tracks * 18 sectors-per-track).
> - Darren
Ok. How then can I create an 80 track single sided DSK?
I have no interest in OS-9. What does the DRIVE 1,4 actually do?
Is there a document I should be reading that explains all this?
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