Date   : Thu, 15 Feb 1990 03:26:03 GMT
From   : xanth!rlb@g.ms.uky.edu (Robert L. Bailey)
Subject: Kaypro DSDD 5.25" floppy parameters

In article <2756@lll-lcc.UUCP> rzh@lll-lcc.UUCP (Roger Hanscom) writes:
>
>Does anybody have the vital statistics on Kaypro 5.25" DSDD
>floppies??  Things like sectors/trk, BSH, etc.  I believe they
>should be about 390K with 10, 512b sectors/track.  I'm trying
>to write a BIOS that will use the Kaypro format.  What is the
>interleave for this format??
>
Yes, the Kaypro DSDD format is as you described.  I'm not absolutely sure
about the interleave, but, here is some other info that you will need
to create the disk parameter block & header:

       PARAMETER               Hex     Decimal
       Sectors/trk             28      40
       Blk shift factor        04       4
       Alloc Block Mask        0F      15
       Extent Mask             01       1
       Disk Size Max         00C2     194
       Dir Max -1            007F     127
       Alloc Mask 0            C0     192
       Alloc Mask 1            00       0
       Dir Check size        0020      32
       Sys Trks Offset       0002       2

Hope this helps.

Bob Bailey