28 Oct
2018
28 Oct
'18
11:54 p.m.
I?ve come into an HP-Apollo 9000/425t which uses memory boards with 72-pin headers rather
than using SIMMs.
Based on what I can see in pictures online, the boards themselves don?t appear to be
anything special (they just carry TMS444000 etc. DRAM) and the connections aren?t anything
special either, so I figure it shouldn?t be hard to design a SIMM adapter.
Does anyone have or know where I could find the pinout and timings?
-- Chris
5 Nov
5 Nov
10:16 p.m.
To follow up on this with what I?ve learned:
As expected, lots of places online will say they have a thing on their web site, and then
when you ask for a quote they won?t actually have it.
However, ServerWorlds not only had HP 98229-66524 16MB memory modules listed, they also
had a price and in-stock quantity listed! So I ordered a couple to try.
https://www.serverworlds.com/hp-98229-66524-16mb-simm/
They have a whole lot fewer now, because it turns out that despite what it says in the
HP-Apollo 9000/400 Series Owner?s Guide, the 425t *does* support 16MB modules! My system
comes right up, all self tests pass and it says it has 32MB of memory with two modules.
So I?ve ordered six more to get to 128MB. In the worst case, I figure it?ll only allow me
to put half that in, and I can pass the memory along to someone else who buys a 9000/375,
380, or 400 series with no RAM.
All that said I?m quite surprised MAME doesn?t include HP-Apollo 9000/400 series
emulation. The hardware is very similar to the 9000/380, which is supported, and several
Apollo DN series systems are also supported?
Hopefully I can install Domain/OS on a virtual disk using MAME (using the same node ID)
and just blast the raw bits to a SCSI disk to make something bootable. Anyone know whether
that wouldn?t work?
? Chris
6 Nov
6 Nov
3:48 a.m.
On Tue, Nov 6, 2018 at 7:16 AM Chris Hanson via cctalk <
cctalk at classiccmp.org> wrote:
Hopefully I can install Domain/OS on a virtual disk
using MAME (using the
same node ID) and just blast the raw bits to a SCSI disk to make something
bootable. Anyone know whether that wouldn?t work?
No idea, but I want to know, so please report whether you were successful.
Do you have a Domain keyboard? I was never able to find one.
8:24 a.m.
On Nov 6, 2018, at 3:48 AM, Rico Pajarola <rp at servium.ch> wrote:
Will do!
On Tue, Nov 6, 2018 at 7:16 AM Chris Hanson via
cctalk <cctalk at classiccmp.org> wrote:
Hopefully I can install Domain/OS on a virtual disk using MAME (using the same node ID)
and just blast the raw bits to a SCSI disk to make something bootable. Anyone know whether
that wouldn?t work?
No idea, but I want to know, so please report whether you were
successful. Do you have a Domain keyboard? I was never able to
find one.
Yes, someone happened to have one on eBay: https://www.ebay.com/itm/302169367965
An Apollo keyboard and mouse also shouldn?t be hard to emulate with something like an
Arduino and a PS/2 keyboard and mouse; the combination speaks a sensible and documented
TTL serial protocol, and the 7-pin DIN connector can be obtained easily. The biggest
difficulty would be mapping a PS/2 keyboard reasonably to all the special Apollo keys.
? Chris
19 Nov
19 Nov
1:30 p.m.
On 11/06/2018 07:16 AM, Chris Hanson via cctalk wrote:
All that said I?m quite surprised MAME doesn?t include
HP-Apollo 9000/400 series emulation. The hardware is very similar to the 9000/380, which
is supported, and several Apollo DN series systems are also supported?
It's just a matter of time - i've got HP-UX with full VUE now running in
MAME. I've? added emulation of most of the functionality of the 98550A
1280x1024 8bpp card. That makes now a nice virtual HP-UX for playing! :-)
I'm now on the 4xx Systems - got a bootrom from someone which looks like
a 400t Boot ROM - it expects a 68030. As you have a real 4xx, would it
be possible to dump the boot rom + configuration eeprom? If you don't
have the possibilities to dump it physically, it might be possible via
/dev/mem in HP-UX, if someone on the list knows the details on how to
use that special device.
Best regards
Sven
20 Nov
20 Nov
3:03 p.m.
On Nov 19, 2018, at 1:30 PM, Sven Schnelle via cctalk <cctalk at classiccmp.org>
wrote:
On 11/06/2018 07:16 AM, Chris Hanson via cctalk wrote:
Do you have a recipe for doing so?
-- Chris
All that said I?m quite surprised MAME doesn?t
include HP-Apollo 9000/400 series emulation. The hardware is very similar to the 9000/380,
which is supported, and several Apollo DN series systems are also supported?
It's just a matter of time - i've got HP-UX with full VUE now running in
MAME. I've added emulation of most of the functionality of the 98550A
1280x1024 8bpp card. That makes now a nice virtual HP-UX for playing! :-)
1996
days inactive
2018
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5 comments
3 participants
participants (3)
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cmhanson＠eschatologist.net -
rp＠servium.ch -
svens＠stackframe.org