Re: //e emulator needed - that supports DOS 3.3 400K multi-volume

[mdj <mdj.mdj@gmail.com>]

On Jan 13, 7:36 am, a2avia...@gmail.com wrote:
> I have been supporting a system that has been in place since 1985,
> that works on a modified DOS on a Corvus OmniDrive.
>
> The kicker, it's not just normal DOS 3.3, it's highly tweaked to get
> more than 35 tracks of space per volume.  A modified RWTS uses two
> actual volumes as one- instead of accessing 16 sectors, it does 32.
> Sectors higher than 16 are mapped the to the next volume.
>
> So a storage space equal to two volumes is available for a single
> random access txt file.
>
> The application itself is written in Applesoft BASIC, and doesn't fit
> in the ProDOS memory space.
>
> I'm trying to have a failsafe environment to fall back on if I can't
> get any more Corvus Omnidrive parts, while they migrate off this onto
> something else.
>
> That migration was supposed to happen this week, but it's been put off
> due to shenanigans from the software vendor hawking the Windows stuff,
> keeping adding more fees to stuff and saying it can't do stuff that
> they said it can.
>
> This system as placed in use in 1985, in DOS 3.3, and has been
> chugging along ever since.
>
> Ideally, an emulator would be OS X based, though since I know of all
> of those.. and none do it.. essentially, Sider emulation.. and heck,
> if I needed to I could probably move this guy onto a Sider, I have a
> few of those. But that would loose the multiuser bit for the time
> being.

What about DOS MASTER ? That would allow a 400k image on a Focus
partition.

Matt