[Coco] cobbler'd disks

[Joel Ewy]

mike delyea wrote:
> dmode /dd shows
> nam=DD mgr=RBF ddr=rb1773 hpn=07 hpa=FF40 drv=00 stp=03 typ=20 dns=01
> cyl=0028
> sid=02 vfy=01 sct=0012 t0s=0012 ilv=03 sas=08 wpc= ofs= rwc=
>
> dmode /d0 shows the same except for the nam part (which is D0 instead of
> DD).  dmode /d1 is also the same.  I am only using 360k 5.25 floppy
> drives.
>
> On 5/15/07, Stephen Castello <zootzoot at cfl.rr.com> wrote:
>>
>> On Tue, 15 May 2007 16:06:30 -0400, mike delyea <mdelyea at gmail.com>
>> had a flock of green cheek conures squawk out:
>>
>> >/dd is /d0.  ummm, where's the TPI setting?
>> >
>>
The "dns" parameter is for setting both the sector and track density, as
follows:
Bit 0:  0=Single Density  1=Double Density
Bit 1:  0=48 TPI          1=96 TPI

JCE
>> It's one of the settings in /dd.  Dmode will show it.
>> If the floppy was formatted with a different TPI (tracks per inch),
>> than what /dd expects it to be, it won't be accessible.  At least
>> that's what I've found trying to read my Tandy OS9 disks under
>> NitrOS9.
>>
>> Stephen
>> -- 
>>
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>
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