[Coco] Sierra Xmas 86 demo

[Bill Pierce]

Stephen... 
Not sure about the 80 trk 5.25 but I think it's supposed to be dns=3 also. I think this applies to any double stepping drive and 80 trk 5.25 fits the bill so let me rephrase that

SSDD - DSDD Single stepping drives should be dns=1 (35trk & 40 trk)
DSDD Double stepping drives should be dns=3 (80trk)

That should cover it better.

I think it has something to do with the timing in the step rate of the double stepping drives. Gene could probably clarify this as he seems to be "Drive man" and knows more about stepping motors than most.

Bill P

Music from the Tandy/Radio Shack Color Computer 2 & 3
https://sites.google.com/site/dabarnstudio/
Bill Pierce
ooogalapasooo at aol.com




-----Original Message-----
From: Stephen H. Fischer <SFischer1 at Mindspring.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Sun, Dec 9, 2012 10:07 pm
Subject: Re: [Coco] Sierra Xmas 86 demo


Hi,

What should DNS be for my 80 Track 2 sided 5.25" Disks?

If you look at the definition for 3.5" disks, the DNS should be DNS = 3.

 I had A 80T2S 3.5" drive and a 5.25" 80T2S which I swapped /D0 and /D1 with 
a switch.

But most people having only 3.5" 80T2S drives might well have DNS =1.

What a mess Charlie Brown. Your rule "It should dns=3 for 3.5 and dns=1 for 
5.25" just does not work.


SHF


----- Original Message ----- 
From: "Bill Pierce" <ooogalapasooo at aol.com>
To: <coco at maltedmedia.com>
Sent: Sunday, December 09, 2012 6:47 PM
Subject: Re: [Coco] Sierra Xmas 86 demo


>
> @Robert Gault,
> I too have been messing with the XMas86 disk and something I've noticed 
> about all the disks in the new builds. The sector sizes are all out of 
> whack in the dw disks and some of the others as well. None of the external 
> dsk sizes are right 311k for 360k, 636k for 720k. These cannot be backed 
> up normally. Some of the 40trks are dmoded as typ=21... this should be 
> typ=20.   typ=21 is a 3.5 disk.  I haven't dmoded them all but I bet the 
> dns=x is wrong on most. It should dns=3 for 3.5 and dns=1 for 5.25
> I would assume this is being done in the makefile/scripts that create the 
> diks?
>
> Bill P
>
> Music from the Tandy/Radio Shack Color Computer 2 & 3
> https://sites.google.com/site/dabarnstudio/
> Bill Pierce
> ooogalapasooo at aol.com
>
>
>
>
> -----Original Message-----
> From: Robert Gault <robert.gault at att.net>
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> Sent: Sun, Dec 9, 2012 9:27 pm
> Subject: Re: [Coco] Sierra Xmas 86 demo
>
>
> Charlie Pelosi wrote:
>> Thanks Robert. I did get it working by using a DOS computer and writing 
>> the
> image with DSKINI /T40 /D
>>
>> Works great. The images of this demo in the Nitros9 project archive 
>> however
> don't seem to work at all.
>>
>> Charlie
>>
>
> Hmmm, if it's the nightly build I wouldn't be surprised.
>
> I just built the disk from the 
> nitros9/3rdparty/packages/sierra/christmas86
> source code and it works perfectly.
> There was also a Drivewire version built but that would not boot. Guess 
> I'll
> need to see what is wrong with the DW3 version.
>
> Robert
>
>
>
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>
>
>
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