[Coco] Hacking the SuperIDE

[Gene Heskett]

On Wednesday 03 October 2012 14:07:29 Retro Canada did opine:

> ops broken email:
> 
> i tried:
> 
> dmode /i0 stp=ff typ=81 dns=08 wpc=05 ofs=2ddc

Post the Capacity line from a "free /i0" please.

And are you using the superdriver in deblocking mode?
 
> and even though I cannot access it. It gives not permission.

Probably because its not been formatted.
 
> On Wed, Oct 3, 2012 at 12:49 PM, Retro Canada <retrocanada76 at gmail.com> 
wrote:
> > on my side I could not make the /ih descriptor to work.
> > 
> > There is something broken here. First it mounts itself as I0 and the
> > offset is zero, as well as stp and
> > 
> > On Wed, Oct 3, 2012 at 12:20 PM, Gene Heskett <gheskett at wdtv.com> 
wrote:
> >> On Wednesday 03 October 2012 11:55:51 Retro Canada did opine:
> >>> For HDB-DOS, the offset is 3 byte long. So I believe it can be
> >>> $FFFFFF-(256*630) maximum.
> >> 
> >> That is an HDBDOS restriction.  If running nitros9, and your bootfile
> >> includes /sh.dd, then be aware that the dmode utility can be used to
> >> make quite a few of the 256 disk sets of rsdos formatted virtual
> >> disks available.
> >> 
> >> For instance, I have 2 1Gb drives on my tc^3 scsi controller. 
> >> Address 0 on the scsi bus is my work drive, and is partitioned for
> >> $1DBB90 sectors as /dd.  That is about 498 megs, using a cluster
> >> size of 4.
> >> 
> >> Normally, a dmode of the /sh descriptor says the offset is also set
> >> to $1DBB90.  This is the "wpc=1D ofs=BB90" in dmode.  In the /sh
> >> descriptor for the superdriver, the stp value is used as the vdisk
> >> to access, so if stp=$80, that is the drive my copy of HDBDOS can
> >> boot from.
> >> 
> >> BUT, until I run out of drive, there is no reason the offsets in /sh
> >> cannot be modified (write it on the wall so you can restore) by
> >> using dmode to increase this offset value by an additional $27600
> >> for every additional 256 vdisk set you need.  On one of those 4Gb CF
> >> cards, that is a huge bunch.
> >> 
> >> I think what I would do would be to write me a bunch of scripts
> >> called dmodesh# where # was the set of vdisks you wanted to look at.
> >> 
> >> Cheers, Gene
> >> --
> >> 
> >> "There are four boxes to be used in defense of liberty:
> >>  soap, ballot, jury, and ammo. Please use in that order."
> >> 
> >> -Ed Howdershelt (Author)
> >> My web page: <http://coyoteden.dyndns-free.com:85/gene> is up!
> >> TAILFINS!! ... click ...
> >> 
> >> --
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> >> Coco at maltedmedia.com
> >> http://five.pairlist.net/mailman/listinfo/coco
> > 
> > --
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> > Commodore 64
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> > ..and more coming!


Cheers, Gene
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: <http://coyoteden.dyndns-free.com:85/gene> is up!
To have died once is enough.
		-- Publius Vergilius Maro (Virgil)