Re: 2E - 3.5" drive question

[dempson@actrix.gen.nz (David Empson)]

Supertimer <supertimer@aol.com> wrote:

> dempson@actrix.gen.nz (David Empson) wrote:
> 
> >neither of Apple's 3.5" controllers
> >support 5.25" drives.  (The UDC does, but not as well as the standard
> >Apple controller.)
> 
> How so?  When I ran my DuoDisk with a UDC card back in my
> IIe days, the UDC would let me run Apple UCSD Pascal, which
> was pretty hard coded for 5.25 drives.

Which version of Apple Pascal was this?  I would fully expect version
1.3 to work, but earlier versions might not.

I was under the impression that the UDC provides access to 5.25" drives
through the SmartPort firmware (and ProDOS block driver), and doesn't
support the standard Disk ][ controller card I/O addresses (equivalent
of the IWM).

Can you boot DOS 3.3 on a UDC?  How about copy-protected games which
depend on the contents of the firmware?

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P O Box 27-103, Wellington, New Zealand