[Coco] Coco drives single and double side question.

[Ghislain Harvey]

What I really want is that my system react as if I have 2 single side drive.

I have 2 double side drive.
So that's why I say DIR2 will give me the same thing as DIR0

-----Message d'origine-----
De : coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] De
la part de Rogelio Perea
Envoyé : January-08-08 9:34 PM
À : CoCoList for Color Computer Enthusiasts
Objet : Re: [Coco] Coco drives single and double side question.

Perhaps we need to backtrack a little bit here. I am assuming you understand
that by doing a DIR 0 you access the first side of the disk and with a DIR 2
the opposite side right?. From your first message:

> DIR0 and DIR2 is for the same drive but can access different data.

"different data" comes out of running both commands because the CoCo
interprets those commands as the user accessing TWO different DRIVES, the
CoCo and it's RSDOS (the minimal disk operating system) doesn't know it's
accesing the same DISK - it doesn't care!

Now - and move slowly here because this can get confusing - from your last
message:

> I want is that DIR0 give me the same result as DIR2

The only way this can happen in your setup is if you BACKUP the contents of
the second side of the DISK (what you see with a DIR 2) into the first side
of the disk (the DRIVE 0). *THEN* you will get the same *result* from doing
a DIR 0 or DIR 2 on that *particular* disk.

I could be misinterpreting your intentions about the "same results". As I
noted before, if what you want is to just issue a DIR command and get the
directory of BOTH sides of the disk (a DIR 0 and DIR 2 in a single sweep),
that won't happen. You can 'fake it' writing a Basic program that reads both
directories and gives you a single listing, but even so, for the CoCo that
means it is accessing two different drives.


-=[ Rogelio ]=-


On Jan 8, 2008 9:02 PM, Ghislain Harvey <ghislainharvey at videotron.ca> wrote:

Well not exactly. What I want is that DIR0 give me the same result as DIR2.
>
> -----Message d'origine-----
> De: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] De
> la part de Rogelio Perea
> Envoyé: January-08-08 4:58 PM
> À: CoCoList for Color Computer Enthusiasts
> Objet: Re: [Coco] Coco drives single and double side question.
>
> Do you mean you want to access both sides of the drive (and thus the whole
> 360k of available data space) as if it were a single drive?
>
> If that's the case then it is not possible unless you use OS9. RSDOS is
> limited to access the drive as currently setup in your CoCo 3 disk
> controller, side A is DRIVE 0 and side B is DRIVE 2.
>
>
> - Rogelio
>
>
> On Jan 8, 2008 3:14 PM, Ghislain Harvey <ghislainharvey at videotron.ca>
> wrote:
>
> > Hi great community.
> > I have a Coco3 128k with 2 drives that are double sides. DIR0 and DIR2
> is
> > for the same drive but can access different data.
> > I would like to know if there is a way to make the system work as its
> only
> > Single Sided? IS is a command related or I must absolutely used single
> > sided
> > Drives?
> > Thanks
> > Ghislain Harvey
>

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