On Sun, Oct 14, 2012 at 1:42 PM, js at
cimmeri.com <js at cimmeri.com> wrote:
What makes IDE to Qbus or Unibus interfacing so
difficult? There must be
reasons, otherwise it would have been done by now.
Oddball bus interface chips on the hardware side, and either
completely emulating an existing DEC (or 3rd party) controller's
registers and functionality or creating a new controller and being
prepared to write drivers for every DEC OS known to man.
-ethan