17 Feb
2015
17 Feb
'15
6:19 a.m.
Hi everyone,
I'm looking for the images of ROMs installed on the IOC (I/O controller)
board of Intel MDS-2 development systems. In particular I'm looking for
the content of the character generator ROM (A19-2708) and of firmware
ROMs (A50 to A53-4x2716). So far I had no success in googling them.
My goal would be to contribute a good emulation of MDS systems to MESS,
especially for what regards the look of the video terminal. Well, this
is the plan, when "real-life" is not inteferring too much...
Thanks a lot.
-- F.Ulivi
17 May
17 May
5:06 p.m.
F.Ulivi wrote on 2/17/2015 9:19 AM:
Hi everyone,
I'm looking for the images of ROMs installed on the IOC (I/O controller)
board of Intel MDS-2 development systems. In particular I'm looking for
the content of the character generator ROM (A19-2708) and of firmware
ROMs (A50 to A53-4x2716). So far I had no success in googling them.
My goal would be to contribute a good emulation of MDS systems to MESS,
especially for what regards the look of the video terminal. Well, this
is the plan, when "real-life" is not inteferring too much...
Thanks a lot.
-- F.Ulivi
I know I'm kind of late into this discussion, but I just took a look at
what I have and perhaps I can help.
I have the character generator rom code from an IOC. Not sure if there
were any changes to it over the revisions of the IOC, but I don't think
so. My copy should be good.
As for the firmware, there were many versions. At one point Intel
released an upgrade package called the iMDX-511. That added
cursor-addressbility on the integral CRT, a function key on the keyboard
(replaced the RPT (repeat) key), some shortcut key sequences, improved
speed, and other things I can't remember. It was a standard part of the
Series-II at some point, about the same time the white one became available.
I have all that rom code. I even took a swipe at disassembling it to
try to understand it. That was never finished, but I did make some
progress.
If the 8741/8041 chip on the IOC was called the PIO (Parallel I/O) then
I have that rom code too. I have a document that says the 8041 is
indeed the PIO.
The iMDX-511 also included an enhancement to the keyboard processor. I
have that rom code as well.
I'm really sorry I didn't look into this sooner as it may have saved a
lot of discussion on this list.
In any case, I can create a zip file of what I have an email it to
anyone interested.
Just email me a good email address for you and I send it out.
Dave
6:34 p.m.
On Sun, May 17, 2015 at 6:06 PM, Dave Mabry <dmabry at mich.com> wrote:
As for the firmware, there were many versions. At one
point Intel released
an upgrade package called the iMDX-511. That added cursor-addressbility on
the integral CRT, a function key on the keyboard (replaced the RPT (repeat)
key), some shortcut key sequences, improved speed, and other things I can't
remember. It was a standard part of the Series-II at some point, about the
same time the white one became available.
I've dumped all the programmable parts from a Series II with an IPB
(8080 main CPU board) and the IOC iMDX-511 firmware, except the IOC
8041A and a few soldered-in bipolar PROMs used for address decode on
the IPB. My firmware images are on Bitsavers:
http://bitsavers.trailing-edge.com/pdf/intel/MDS2/firmware/mds2.zip
I have all that rom code. I even took a swipe at
disassembling it to try to
understand it. That was never finished, but I did make some progress.
As have I. I found that the IOC firmware has undocumented 0dh and 0eh
commands. Command 0x0d allows the main CPU to write to arbitrary IOC
memory, and is probably for diagnostics, but is not allowed unless IOC
RAM location 5af4h contains the value 24h, and I haven't figured out
how that can be made to happen, since you can't use command 0x0d to
set it if it isn't already set. I haven't yet figured out what
command 0eh does.
If the 8741/8041 chip on the IOC was called the PIO
(Parallel I/O) then I
have that rom code too. I have a document that says the 8041 is indeed the
PIO.
Yes. I'd like a copy. Can you confirm that the one you dumped is P/N 104566-001?
The iMDX-511 also included an enhancement to the
keyboard processor. I have
that rom code as well.
104675-001, included in the ZIP file on bitsavers.
Do you have dumps of the firmware for the RPB86 and/or RPC86 8086 CPU
boards used in the Series III?
Best regards,
Eric
6:39 p.m.
wish i coud get mine to work when ever i put the cpu board in the screen
goes all weird
On Sun, May 17, 2015 at 8:34 PM, Eric Smith <spacewar at gmail.com> wrote:
On Sun, May 17, 2015 at 6:06 PM, Dave Mabry <dmabry
at mich.com> wrote:
As for the firmware, there were many versions.
At one point Intel
released
an upgrade package called the iMDX-511. That
added cursor-addressbility
on
the integral CRT, a function key on the keyboard
(replaced the RPT
(repeat)
key), some shortcut key sequences, improved
speed, and other things I
can't
remember. It was a standard part of the
Series-II at some point, about
the
same time the white one became available.
I've dumped all the programmable parts from a Series II with an IPB
(8080 main CPU board) and the IOC iMDX-511 firmware, except the IOC
8041A and a few soldered-in bipolar PROMs used for address decode on
the IPB. My firmware images are on Bitsavers:
http://bitsavers.trailing-edge.com/pdf/intel/MDS2/firmware/mds2.zip
I have all that rom code. I even took a swipe at
disassembling it to
try to
understand it. That was never finished, but I
did make some progress.
As have I. I found that the IOC firmware has undocumented 0dh and 0eh
commands. Command 0x0d allows the main CPU to write to arbitrary IOC
memory, and is probably for diagnostics, but is not allowed unless IOC
RAM location 5af4h contains the value 24h, and I haven't figured out
how that can be made to happen, since you can't use command 0x0d to
set it if it isn't already set. I haven't yet figured out what
command 0eh does.
If the 8741/8041 chip on the IOC was called the
PIO (Parallel I/O) then I
have that rom code too. I have a document that says the 8041 is indeed
the
PIO.
Yes. I'd like a copy. Can you confirm that the one you dumped is P/N
104566-001?
The iMDX-511 also included an enhancement to the
keyboard processor. I
have
that rom code as well.
104675-001, included in the ZIP file on bitsavers.
Do you have dumps of the firmware for the RPB86 and/or RPC86 8086 CPU
boards used in the Series III?
Best regards,
Eric
18 May
18 May
4:55 p.m.
Eric Smith wrote on 5/17/2015 9:34 PM:
I have two dumps of 8041 code from two different systems. One was a
model 220 and the other was a 230. All I know is that the images are
different from each other. I didn't record the part number. (I created
those files about 25 years ago...) If you know that there were only two
versions released, by some strange chance, then one of these must be it.
But I just checked my parts bin and I have two IOC boards (not
completely functioning I think) that have that 104566-001 part. When I
get a chance I can create an image, assuming I can get my eprom burner
to run. It worked when I put it away. Just hoping the gremlins haven't
taken it.
I made two or three RPC86 boards from SBC-86/12 boards. It wasn't very
easy. There were lots of wire jumpers and a few cut foils. There was a
special PAL chip. And, of course, the firmware. So I have the firmware
(or at least I have the EPROMS) for the RPC86. To create the PAL I was
able to copy the code from an authentic RPC86 as Intel hadn't burned the
protection fuse. I carefully documented all the jumpers and cut foils
and used that documentation to make my second and third RPC86. I will
look for the firmware code for you. But I probably won't get to it right
away. Summer is here and I want to scuba dive and shoot at targets
while the weather cooperates. :)
I sent out your Single Density ISIS-II 4.3 boot diskette today with
Kermit on it. It is my customization of Kermit that detects whether it
is running on an MDS or a PDS and uses the correct I/O ports. I find it
most reliable at 2400 bits/second.
On Sun, May 17, 2015 at 6:06 PM, Dave Mabry <dmabry
at mich.com> wrote:
One of the enhancements in the iMDX-511 was a fast block write to the
crt. I'd bet that write to arbitrary IOC memory has something to do
with that. It was about the time that Intel released ALTER (later
renamed AEDIT) which was a very nice screen oriented text editor. If
you had the 511 installed it did very fast screen writes.
As for the firmware, there were many versions.
At one point Intel released
an upgrade package called the iMDX-511. That added cursor-addressbility on
the integral CRT, a function key on the keyboard (replaced the RPT (repeat)
key), some shortcut key sequences, improved speed, and other things I can't
remember. It was a standard part of the Series-II at some point, about the
same time the white one became available.
I've dumped all the programmable
parts from a Series II with an IPB
(8080 main CPU board) and the IOC iMDX-511 firmware, except the IOC
8041A and a few soldered-in bipolar PROMs used for address decode on
the IPB. My firmware images are on Bitsavers:
http://bitsavers.trailing-edge.com/pdf/intel/MDS2/firmware/mds2.zip
I have all that rom code. I even took a swipe at
disassembling it to try to
understand it. That was never finished, but I did make some progress.
As have I.
I found that the IOC firmware has undocumented 0dh and 0eh
commands. Command 0x0d allows the main CPU to write to arbitrary IOC
memory, and is probably for diagnostics, but is not allowed unless IOC
RAM location 5af4h contains the value 24h, and I haven't figured out
how that can be made to happen, since you can't use command 0x0d to
set it if it isn't already set. I haven't yet figured out what
command 0eh does. If the
8741/8041 chip on the IOC was called the PIO (Parallel I/O) then I
have that rom code too. I have a document that says the 8041 is indeed the
PIO.
Yes. I'd like a copy. Can you confirm that the one you dumped is P/N
104566-001? The iMDX-511 also included an enhancement to the
keyboard processor. I have
that rom code as well.
104675-001, included in the ZIP file on bitsavers.
Do you have dumps of the firmware for the RPB86 and/or RPC86 8086 CPU
boards used in the Series III?
Best regards,
Eric
7:48 p.m.
On Mon, May 18, 2015 at 5:55 PM, Dave Mabry <dmabry at mich.com> wrote:
> As have I. I found that the IOC firmware has
undocumented 0dh and 0eh
> commands. Command 0x0d allows the main CPU to write to arbitrary IOC
> memory,
One of the enhancements in the iMDX-511 was a fast
block write to the crt.
I'd bet that write to arbitrary IOC memory has something to do with that.
No, that's command 0x0f which is documented, and can only write to
screen memory.
I made two or three RPC86 boards from SBC-86/12
boards. It wasn't very
easy.
That was something I was hoping to do also, if I can't obtain an RPB
or RPC, but can obtain an 86/12A, 86/14, or 86/30. It's encouraging
that you've confirmed that it's possible, but discouraging that it
sounds like a lot of work.
I sent out your Single Density ISIS-II 4.3 boot
diskette today with Kermit
Thanks!!!
20 May
20 May
1:53 a.m.
Eric Smith wrote on 5/17/2015 9:34 PM:
As have I. I found that the IOC firmware has
undocumented 0dh and 0eh
commands. Command 0x0d allows the main CPU to write to arbitrary IOC
memory, and is probably for diagnostics, but is not allowed unless IOC
RAM location 5af4h contains the value 24h, and I haven't figured out
how that can be made to happen, since you can't use command 0x0d to
set it if it isn't already set. I haven't yet figured out what command
0eh does. Best regards, Eric
Perhaps this document will be of use. I don't think I've passed it
along. At one time I had a pretty good source for internal
information. Friends who worked in the development teams...
Dave
18 May
18 May
1:10 a.m.
Hello,
as far as the IOC dumping is concerned, I've everything except the PIO
code (PIO is "A72" on IOC board and it's stamped with part number
"104566-001"). Most of the binary images I have of IOC come from an old
dump of yours (circa 2004) that I was able to download thanks to
archive.org so, if you want, I can send them back to you but you won't
find anything you don't already have. And, as Eric Smith pointed out in
another message in this thread, he already put everything on bitsavers.
On the other hand, if you have the PIO dump available, I'd like very
much to have it, please. For now the PIO in my emulator is running a
code that I wrote and that is not very "original".
Thanks.
-- F.Ulivi
1:14 a.m.
Hello,
as far as the IOC dumping is concerned, I've everything except the PIO
code (PIO is "A72" on IOC board and it's stamped with part number
"104566-001"). Most of the binary images I have of IOC come from an old
dump of yours (circa 2004) that I was able to download thanks to
archive.org so, if you want, I can send them back to you but you won't
find anything you don't already have. And, as Eric Smith pointed out in
another message in this thread, he already put everything on bitsavers.
On the other hand, if you have the PIO dump available, I'd like very
much to have it, please. For now the PIO in my emulator is running a
code that I wrote and that is not very "original".
Thanks.
-- F.Ulivi
17 Oct
17 Oct
9:02 a.m.
New subject: Looking for HP98034 / HP9895 ROM images
Hi everyone,
does anyone of you happen to have the images of the firmware ROM of
HP98034 module and/or of the HP9895 disk drive, please?
I'm working on implementing these devices on my MAME-based simulator of
HP9845B systems.
Thank you.
-- F.Ulivi
9:47 a.m.
New subject: Looking for HP98034 / HP9895 ROM images
On Mon, Oct 17, 2016 at 9:02 AM, F.Ulivi <fulivi at tiscali.it> wrote:
Hi everyone,
does anyone of you happen to have the images of the firmware ROM of
HP98034 module and/or of the HP9895 disk drive, please?
I'm working on implementing these devices on my MAME-based simulator of
HP9845B systems.
Where is the firmware on the 9895A? Is it in a 24-pin DIP package mask
ROM near the lower right corner of this picture?
http://www.hpmuseum.net/images/09895-66500-26.jpg
Hmm, looking in the service manual it appears there were several
versions of the controller board. Some with multiple PROMs and some
with a single ROM, and some with a Z80 and some with an MC2
(micro-CPU, the '2' is a superscript).
http://www.bitsavers.org/pdf/hp/disc/07902-90030_7902_9895_Svc_Jan81.pdf
I have a 9895A. Don't know which version of the controller PCB it has
without digging it out to take a look.
10:45 a.m.
New subject: Looking for HP98034 / HP9895 ROM images
On 2016-10-17 1:47 PM, Glen Slick wrote:
On Mon, Oct 17, 2016 at 9:02 AM, F.Ulivi <fulivi at
tiscali.it> wrote:
Yes that would be it the unpopulated
positions would be for versions of
the controller using smaller ROMs, The one I have is the 4 ROM version
and I am pretty sure I dumped them, I just need to find out where.
Paul.
Hi everyone,
does anyone of you happen to have the images of the firmware ROM of
HP98034 module and/or of the HP9895 disk drive, please?
I'm working on implementing these devices on my MAME-based simulator of
HP9845B systems.
Where is the firmware on the 9895A? Is it in a 24-pin DIP package mask
ROM near the lower right corner of this picture?
http://www.hpmuseum.net/images/09895-66500-26.jpg
Hmm, looking in the service manual it appears there were several
versions of the controller board. Some with multiple PROMs and some
with a single ROM, and some with a Z80 and some with an MC2
(micro-CPU, the '2' is a superscript).
http://www.bitsavers.org/pdf/hp/disc/07902-90030_7902_9895_Svc_Jan81.pdf
I have a 9895A. Don't know which version of the controller PCB it has
without digging it out to take a look.
2742
days inactive
3350
days old
11 comments
7 participants
participants (7)
-
dmabry＠mich.com -
fulivi＠gmail.com -
fulivi＠tiscali.it -
glen.slick＠gmail.com -
phb.hfx＠gmail.com -
spacewar＠gmail.com -
tdk.knight＠gmail.com