PDP emulation - test-drb@ccmp.vtda.org

5 Mar 2000

On Mar 5, 18:11, Allison J Parent wrote:

...
  I forget if V7 needed I&D space or 2.11 meaning
the 11/23 was not enough.
 The 11/73 has the added I&D bits where 11/23 only has user registers and
 MMU. 
BSD2.11 does need separate I&D, but V7 doesn't.  If you don't have separate
I&D, ISTR you need to build it for "small machine", and it runs a bit
slower.

...
  Got it onto a RL02 pack.  It's the supnick
emulator V7 binary image for
 RL02 and it will run from RL02 IF the pack is a RL02k-DC (no defects).
 The reason for that is the image is for a theoretical perfect disk and
 it's bad block map is zero defects.

 The hardware is 11/73(KA11J-A), 2MB ram, DLV11-F, DLV11J, RLV21/RL02,
 RXV12/RX02, RQDX3/RD52(x2)/RX33, TQK50.  It's a very stuffed BA11N box
 with a CD/CD (18 slots) backplane. 
I tried swapping my M8186 (11/23) for M8192 (11/73) but it doesn't run.
 Maybe I need to rebuild the kernel (I've got an original distribution, not
one of the images from PUPS), but perhaps it would work with more memory or
by swapping RLV11 for RLV12.

-- 

Pete						Peter Turnbull
						Dept. of Computer Science
						University of York