The "2.2" image on ibibilio is actually XXDP+, the "V1" monitor. It runs
everything, including the 11/03 and 11/23 with BEVENT enabled. The 2.5
image runs on the 03 and 23 with BEVENT disabled, as well as the 04, 05,
20; in effect, everything as well.
So the problem occurs in Mattis' XXDP 2.2 image. For the 2.2 image, all
the non-MMU systems fail on the simulator, including the 11/23 if the
MMU is disabled. The failures appear be similar.
I have not found sources for the XXDP V2 monitor.
/Bob
On 12/30/2015 3:08 PM, [email protected] wrote:
Great that we have a solution for BEVENT!
According to the manual XXDP shall resort to the small monitor if the MMU
is non present or faulty. (page 2-2 indicate so as far as I read it)
I tested the images at
http://www.ibiblio.org/pub/academic/computer-science/history/pdp-11/xxdp/
I can boot the two XXDP RL02 images attached to rl0 on 11/04, 11/05 and
11/20.
PDP-11 simulator V4.0-0 Beta git commit id: ea4d9a16
sim> set 11/04
Disabling XQ
sim> attach rl0 ./xxdp22.rl02.img
sim> b rl0
CHMDLD0 XXDP+ DL MONITOR
BOOTED VIA UNIT 0
28K UNIBUS SYSTEM
ENTER DATE (DD-MMM-YY):
Simulation stopped, PC: 150574 (BPL 150652)
sim> attach rl0 ./xxdp25.rl02.img
sim> b rl0
CPU NOT SUPPORTED BY XXDP-XM
BOOTING UP XXDP-SM SMALL MONITOR
XXDP-SM SMALL MONITOR - XXDP V2.4
REVISION: D0
BOOTED FROM DL0
28KW OF MEMORY
UNIBUS SYSTEM
RESTART ADDRESS: 152010
TYPE "H" FOR HELP
.
Simulation stopped, PC: 151006 (TST R0)
sim> set 11/05
sim> b rl0
CPU NOT SUPPORTED BY XXDP-XM
BOOTING UP XXDP-SM SMALL MONITOR
XXDP-SM SMALL MONITOR - XXDP V2.4
REVISION: D0
BOOTED FROM DL0
28KW OF MEMORY
UNIBUS SYSTEM
RESTART ADDRESS: 152010
TYPE "H" FOR HELP
.
Simulation stopped, PC: 151002 (JSR PC,150664)
sim> set 11/20
sim> b rl0
CPU NOT SUPPORTED BY XXDP-XM
BOOTING UP XXDP-SM SMALL MONITOR
XXDP-SM SMALL MONITOR - XXDP V2.4
REVISION: D0
BOOTED FROM DL0
28KW OF MEMORY
UNIBUS SYSTEM
RESTART ADDRESS: 152010
TYPE "H" FOR HELP
.
Simulation stopped, PC: 150674 (BPL 150750)
So it cannot be the MMU (not alone at least). It has to be a combination
with device driver.
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