4 Feb
2008
4 Feb
'08
1:23 p.m.
On 04-Feb-08, Jerome H. Fine wrote:
Probably your best option is to use the BA23 box.
However, for that
option, you really need a quad M8189 CPU (PDP-11/23)
or a quad M8190 CPU (PDP-11/73).
It is entirely possible to use the dual M8186 CPU
(PDP-11/23), however,
you will then require a controller with a boot ROM (usually only
available
with a 3rd party disk controller) or you will need to
enter the
boot program via ODT each time you power on the system.
If you look carefully down the list, he's got an M8047 - MXV11 with
(P)roms,
so he'll be able to use the 11/23 that he already has, and, depending
on the
roms installed, should be able to perform an MSCP boot.
Entering the boot program manually (by hand one
instruction at a time)
takes about 5 minutes. A boot program for the MSCP M7555 controller
is available.
Entering bootstrap by hand? Eeek! That is what macros on terminal
emulators are for.
;-)
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4 Feb
4 Feb
5:22 p.m.
On 04/02/2008 21:23, tiggerlasv at aim.com wrote:
On 04-Feb-08, Jerome H. Fine wrote:
Or use the RX01 controller and drives (assuming they're present) and run
RT-11, booting off the MXV11.
Probably your best option is to use the BA23 box.
However, for that
option, you really need a quad M8189 CPU (PDP-11/23)
or a quad M8190 CPU (PDP-11/73).
It is entirely possible to use the dual M8186 CPU
(PDP-11/23), however,
you will then require a controller with a boot ROM (usually only
available
> with a 3rd party disk controller) or you will need to enter the
> boot program via ODT each time you power on the system. If you look carefully down the list, he's got an
M8047 - MXV11 with
(P)roms,
so he'll be able to use the 11/23 that he already has, and, depending on
the
roms installed, should be able to perform an MSCP boot.
M8047 is an MXV11-A, and there's no standard MSCP boot available for
that. The MXV11-A will only boot RX01, RX02, RL01, RL02, TU58. You
can't even write bootstrap code for it in the way you can for a BDV11 or
MXV11-B, or a microPDP-11/23plus because the ROMs aren't window-mapped
and you can only get at 256 bytes. You can choose which 256-byte page
by wire-wrapping, but not in software.
--
Pete Peter Turnbull
Network Manager
University of York
6164
days inactive
6165
days old
1 comments
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pete＠dunnington.plus.com -
tiggerlasv＠aim.com