4 Jan
2002
4 Jan
'02
12:40 a.m.
Pete Turnbull wrote:
On Jan 2, 21:08, <quapla(a)xs4all.nl> wrote:
I'm sure there must be people on the
list who know more about 11/70s than I
do, but since no-one else has replied yet...
Until know, you're the only one.....
Is the memory powered up and connected? At the right
address (you must
Yes, it is running, and all the leds are on, except one red led
(battery
power
available?).
There is 128KW of memory (in 2 64Kw boards)
have some memory in the lowest 28KW to start up)? Is
the cache working?
How do I know if the cache is working?
There are various things done by the power-up
bootstrap diagnostic
True, I have re-read the M9312, and at address 777644 is the
diagnostics
rom start
address. When I load this address and then set 012 in the switch reg,
for some
moments it is blinking leds, and then lets the pause light on. There is
no sensible
address/error code shown at the console which should indicate a diag
failure.
routines to set up the cache and memory system; and
there are ways to
disable cache, Unibus map, certain errors, etc, by poking bits into control
registers. And I think you probably want to set the console Address Select
Switch to CONS(ole) PHYS(ical).
The switches are on CONS PHYS and DATA PATH for the
other one.
17177760 is the "lower size register". Set
it to the address of the last
On the M8132 is a switchblock (1 of 3) which is -
according to the doc-
the
lsw, I have set it to 1M,
addressable block of 32 words (ie offset by 6 bits).
There's an upper size
register as well, "reserved for future use", read-only, reads as zeros, at
17177762.
snip snip
--
Pete Peter Turnbull
Network Manager
University of York
Ed
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