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This groups is for support and discussion of the MFM disk reader/emulator project
http://www.pdp8online.com/mfm.
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Mayne Mihacsi
,
David Gesswein
14
9:50 AM
Image File Fails to show any files
Using Linux fdisk against the image it says partition 4 Start-C/H/S: 0/1/1 End-C/H/S: 384/9/17
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Image File Fails to show any files
Using Linux fdisk against the image it says partition 4 Start-C/H/S: 0/1/1 End-C/H/S: 384/9/17
9:50 AM
BBMDonut
,
Eric J Korpela
3
8:56 AM
MFM Emulator Updates
Hey, all! Just wanted to give an update on progress over the last few weeks... I've managed to
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MFM Emulator Updates
Hey, all! Just wanted to give an update on progress over the last few weeks... I've managed to
8:56 AM
Forgotten Machines
, …
d...@pdp8online.com
5
Sep 9
Setup Autostart Drive Emulation on MFM Emulator
But then where do I specify the drive number and .emu image file for it to run after this? From page
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Setup Autostart Drive Emulation on MFM Emulator
But then where do I specify the drive number and .emu image file for it to run after this? From page
Sep 9
Alexey Pavlenko
,
d...@pdp8online.com
9
Aug 17
Maxtor XT 2190 - From a Wang DS (Data Storage Cabinet)
I've uploaded a zip with the 2 files via the link. Thank you again for the help! On Saturday,
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Maxtor XT 2190 - From a Wang DS (Data Storage Cabinet)
I've uploaded a zip with the 2 files via the link. Thank you again for the help! On Saturday,
Aug 17
Jay Cotton
, …
Rob Pritchard
10
Aug 12
Attempting to run 2 drives with mfm emulator
Appreciate this is an old thread, but I have MFM Emu working find with an RQDX3 in an 11/73 I'm
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Attempting to run 2 drives with mfm emulator
Appreciate this is an old thread, but I have MFM Emu working find with an RQDX3 in an 11/73 I'm
Aug 12
Steve Jones
,
Joan Touzet
5
Jun 21
What are people running on the Beaglebone Green Wireless (BBGW)?
Looks like the DECromancer image `BBB_deb11.9_mfm_v4.31_2024-10-23.img` is working on a BBGW (v1.0)
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What are people running on the Beaglebone Green Wireless (BBGW)?
Looks like the DECromancer image `BBB_deb11.9_mfm_v4.31_2024-10-23.img` is working on a BBGW (v1.0)
Jun 21
Ashlin Inwood
,
d...@pdp8online.com
5
Jun 3
MFM drive from NorthStar Horizon
Google implemented a poor spam filter a while ago that I have no control over. It also only notifies
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MFM drive from NorthStar Horizon
Google implemented a poor spam filter a while ago that I have no control over. It also only notifies
Jun 3
Tom Stepleton
,
David Gesswein
7
May 7
Not sure how to convert PERQ_T2 .emu files to images
Thanks David, there's no need to look into it on my account; I'm happy to start fresh with
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Not sure how to convert PERQ_T2 .emu files to images
Thanks David, there's no need to look into it on my account; I'm happy to start fresh with
May 7
emu
,
David Gesswein
2
Apr 20
erasing disks
You can use mfm_write. This way tou can read back to verify disk wiped. Use ext2emu to create the
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erasing disks
You can use mfm_write. This way tou can read back to verify disk wiped. Use ext2emu to create the
Apr 20
emu
, …
Kirk Barrett
4
Apr 14
Reversed cables?
Absolutely fantastic boards!! On Sunday, April 13, 2025 at 12:22:33 PM UTC-4 e2k wrote: On 2025-04-13
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Reversed cables?
Absolutely fantastic boards!! On Sunday, April 13, 2025 at 12:22:33 PM UTC-4 e2k wrote: On 2025-04-13
Apr 14
Marcel Prisi
, …
Timo Hartong
9
Mar 4
mfm_emu & Acorn A310
It has been tested it was almost no trouble. It is working as you have outlined ;-). On Tuesday,
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mfm_emu & Acorn A310
It has been tested it was almost no trouble. It is working as you have outlined ;-). On Tuesday,
Mar 4
Timo Hartong
Mar 4
ST506 Emulator working in Acorn A410/I
I also tested the ST506 emulator with an Acorn A410/I which has an onboard ST506 controller and it
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ST506 Emulator working in Acorn A410/I
I also tested the ST506 emulator with an Acorn A410/I which has an onboard ST506 controller and it
Mar 4
Timo Hartong
,
David Gesswein
4
Mar 4
Images for Acorn Archimedes
Dear David, I saw the list and I saw I forgot to mention versions etc. They are : Revision board : D
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Images for Acorn Archimedes
Dear David, I saw the list and I saw I forgot to mention versions etc. They are : Revision board : D
Mar 4
Chris Tersteeg
,
David Gesswein
2
Feb 3
LED PCB for the J7 Expansion Connector
Thanks. I've added links to this message to my site. On Sun, Feb 02, 2025 at 04:07:36PM -0800,
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LED PCB for the J7 Expansion Connector
Thanks. I've added links to this message to my site. On Sun, Feb 02, 2025 at 04:07:36PM -0800,
Feb 3
Chris Tersteeg
,
David Gesswein
2
Feb 2
Command fault when analyzing a CMI 6426-S
On Sun, Feb 02, 2025 at 03:11:59PM -0800, Chris Tersteeg wrote: > No sectors readable from
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Command fault when analyzing a CMI 6426-S
On Sun, Feb 02, 2025 at 03:11:59PM -0800, Chris Tersteeg wrote: > No sectors readable from
Feb 2
Jay Cotton
, …
cub...@gmail.com
10
Jan 14
simh and emulator file compatibility.
What do you mean by "I can't seem to link anything"?? 10MB would be way bigger than I
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simh and emulator file compatibility.
What do you mean by "I can't seem to link anything"?? 10MB would be way bigger than I
Jan 14
Alexander Huemer
, …
d...@pdp8online.com
9
12/31/24
Requesting help in interpreting mfm_read output
The one message got stuck in a spam queue. Looks like you figured it out. On the image Phil was right
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Requesting help in interpreting mfm_read output
The one message got stuck in a spam queue. Looks like you figured it out. On the image Phil was right
12/31/24
Andrew Hudson
, …
cub...@gmail.com
18
11/5/24
Resurrecting an ST-225 from a DEC Pro
I would be interested in an Ultrix image as well. I have v7m 1.0 floppies (which I also contributed
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Resurrecting an ST-225 from a DEC Pro
I would be interested in an Ultrix image as well. I have v7m 1.0 floppies (which I also contributed
11/5/24
Riccardo Cannavo
11/5/24
Reading an old MFM Drive
Hi all, I was wondering if anyone can give me a big favor, I would need to read an old drive as
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Reading an old MFM Drive
Hi all, I was wondering if anyone can give me a big favor, I would need to read an old drive as
11/5/24
ich.c...@gmail.com
,
David Gesswein
4
11/2/24
Search for last 3.x OS 7.x image
> You can update to the current 4.xx code on the old OS if desired. Thanks David, yes - that's
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Search for last 3.x OS 7.x image
> You can update to the current 4.xx code on the old OS if desired. Thanks David, yes - that's
11/2/24
Tom Stepleton
, …
David Gesswein
6
10/22/24
Anyone using an MFM emulator with a PERQ 2T2?
On Tue, Oct 22, 2024 at 12:17:41PM -0700, Joan Touzet wrote: > Hi Tom, > > Sadly, I don'
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Anyone using an MFM emulator with a PERQ 2T2?
On Tue, Oct 22, 2024 at 12:17:41PM -0700, Joan Touzet wrote: > Hi Tom, > > Sadly, I don'
10/22/24
Tim Radde
, …
Alison Telford
31
10/18/24
Slow boot
Hi all -- fyi I prepared a fresh sd card with r74, got the wifi working (wpa_supplicant), and wow,
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Slow boot
Hi all -- fyi I prepared a fresh sd card with r74, got the wifi working (wpa_supplicant), and wow,
10/18/24
John Orwin
,
David Gesswein
10
9/25/24
3B2 MFM Emulation
Latest code change: # diff analyze.c.original analyze.c.mod2 802c802 < for (i = 1; i <= seek
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3B2 MFM Emulation
Latest code change: # diff analyze.c.original analyze.c.mod2 802c802 < for (i = 1; i <= seek
9/25/24
Jefferey Wilson
, …
Steve Mastrianni
5
8/21/24
MFM_EMU lockup at second INDEX Pulse?
Update: The new BeagleBone arrived and behaved the same way as the old one, so the BeagleBone was not
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MFM_EMU lockup at second INDEX Pulse?
Update: The new BeagleBone arrived and behaved the same way as the old one, so the BeagleBone was not
8/21/24
Steve Jones
,
David Gesswein
3
8/20/24
Newb failing to create an extract file from an emulation file
Thanks! Clearly need to upgrade from 2.16 to latest so I can use "--format tektronix_6130"
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Newb failing to create an extract file from an emulation file
Thanks! Clearly need to upgrade from 2.16 to latest so I can use "--format tektronix_6130"
8/20/24
Gotcha TL
, …
William Stillwell
5
7/5/24
Handling a ST-506 hard (Xebec 1410 controller)
I had one time had troubles with an Xebec Controller with ST-506, I think if you dig through the
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Handling a ST-506 hard (Xebec 1410 controller)
I had one time had troubles with an Xebec Controller with ST-506, I think if you dig through the
7/5/24
Alison Telford
,
d...@pdp8online.com
10
6/11/24
MFM Emulation on IBM PS/2 Model 50 -- success
I was using an (indicated) 12V 2A (wall-wart) plug attached to a converted (barrel-jack-to-molex).
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MFM Emulation on IBM PS/2 Model 50 -- success
I was using an (indicated) 12V 2A (wall-wart) plug attached to a converted (barrel-jack-to-molex).
6/11/24
David Waine
,
David Gesswein
3
5/30/24
Trying (and failing) to low level format a track
Good morning David, Thanks for your prompt and content-rich reply. It's going to take me a while
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Trying (and failing) to low level format a track
Good morning David, Thanks for your prompt and content-rich reply. It's going to take me a while
5/30/24
Cliff Miller
,
David Gesswein
9
5/21/24
Compaq Portable Plus
Sort of. The emulator image is raw MFM encoded data. Only think I know that can use it directly is
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Compaq Portable Plus
Sort of. The emulator image is raw MFM encoded data. Only think I know that can use it directly is
5/21/24
Seth Morabito
,
David Gesswein
10
5/13/24
ext2emu support for 3B2
Not much wants -d 0. Next update the mfm_emu command page will make that clearer. Did you find -d 0
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ext2emu support for 3B2
Not much wants -d 0. Next update the mfm_emu command page will make that clearer. Did you find -d 0
5/13/24