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Angelo Papenhoff/aap
, …
Oscar Vermeulen
20
Sep 28
What are you doing with your PiDP-1
Bill, On Saturday, September 27, 2025 at 1:22:05 PM UTC+2 wjegr...@gmail.com wrote: How are binaries
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What are you doing with your PiDP-1
Bill, On Saturday, September 27, 2025 at 1:22:05 PM UTC+2 wjegr...@gmail.com wrote: How are binaries
Sep 28
Oscar Vermeulen
2
Oct 9
Found PDP-1 Eliza in Lisp
This page describes how to load Lisp, and load Lisp source code in it: https://obsolescence.dev/pdp1-
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Found PDP-1 Eliza in Lisp
This page describes how to load Lisp, and load Lisp source code in it: https://obsolescence.dev/pdp1-
Oct 9
Mike Arrington
, …
Oscar Vermeulen
5
Oct 9
#97 (rack version) is Alive
Garry, Yes, please send a photo! Kind regards, Oscar.
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#97 (rack version) is Alive
Garry, Yes, please send a photo! Kind regards, Oscar.
Oct 9
Phillip Porch, MD
, …
Oscar Vermeulen
6
Oct 9
LED colors
Kristen, On Thursday, October 9, 2025 at 2:35:06 AM UTC+2 k...@elitemail.org wrote: I haven't
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LED colors
Kristen, On Thursday, October 9, 2025 at 2:35:06 AM UTC+2 k...@elitemail.org wrote: I haven't
Oct 9
John Mann
Oct 9
Off Topic: Error in Table Of Powers Of Two
Hi, I noticed in the "PDP-1 Handbook" Copyright 1960, 1961, 1962, 1963 https://obsolescence
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Off Topic: Error in Table Of Powers Of Two
Hi, I noticed in the "PDP-1 Handbook" Copyright 1960, 1961, 1962, 1963 https://obsolescence
Oct 9
MICHAEL GARDI
, …
Oscar Vermeulen
10
Oct 8
A Small Favor
Nice to have confirmation. Thanks Oscar. Mike On Wednesday, October 8, 2025 at 8:01:49 PM UTC-4
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A Small Favor
Nice to have confirmation. Thanks Oscar. Mike On Wednesday, October 8, 2025 at 8:01:49 PM UTC-4
Oct 8
Bill E
, …
Glenn Babecki
44
Oct 8
Fixed version of macro1_1.c
Norbert, Thanks for the clarification of the history behind the particular version of the Minskytron
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Fixed version of macro1_1.c
Norbert, Thanks for the clarification of the history behind the particular version of the Minskytron
Oct 8
Alen Shapiro
, …
Oscar Vermeulen
10
Oct 8
#31 (Rack Configuration) is alive and well
Ouch ouch ouch. I temporarily added a link to this thread in case anyone is building the controllers
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#31 (Rack Configuration) is alive and well
Ouch ouch ouch. I temporarily added a link to this thread in case anyone is building the controllers
Oct 8
Bill E
, …
Oscar Vermeulen
7
Oct 8
Apparent problem starting up
>> On boot, the simulator and panel controller are started, but not the gui window that shows
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Apparent problem starting up
>> On boot, the simulator and panel controller are started, but not the gui window that shows
Oct 8
MICHAEL GARDI
, …
Oscar Vermeulen
4
Oct 8
DEMOCODING FOR THE PDP-1
That is a rather big ask to Norbert :-) For the moment, I added a reference to his ICSS blogs for an
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DEMOCODING FOR THE PDP-1
That is a rather big ask to Norbert :-) For the moment, I added a reference to his ICSS blogs for an
Oct 8
Matthias Barthel
, …
Oscar Vermeulen
4
Oct 8
playing with Cloude AI
The esp32 will have no problem with doing the lamp glow - you'd use one of its two cores for the
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playing with Cloude AI
The esp32 will have no problem with doing the lamp glow - you'd use one of its two cores for the
Oct 8
Angelo Papenhoff/aap
,
Oscar Vermeulen
2
Oct 8
monas: PDP-1 cross assembler
Added to the install script. To update your install: cd /opt/pidp1 git pull /opt/pidp1/install/
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monas: PDP-1 cross assembler
Added to the install script. To update your install: cd /opt/pidp1 git pull /opt/pidp1/install/
Oct 8
Oscar Vermeulen
,
Alen Shapiro
3
Oct 8
C cross-compiler
Oh my... it works gcc->PDP-1 order code!! (and it does not even output the numbers in reverse). I
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C cross-compiler
Oh my... it works gcc->PDP-1 order code!! (and it does not even output the numbers in reverse). I
Oct 8
Bill E
, …
Oscar Vermeulen
12
Oct 8
My pidp1 hardware hack
Here are the stl files for the front and back LCD mount. The holes in the front are 3.3mm to be self-
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My pidp1 hardware hack
Here are the stl files for the front and back LCD mount. The holes in the front are 3.3mm to be self-
Oct 8
Bill E
Oct 8
Changes for audio filtering and dynamic IOTs now in github
https://github.com/wjenh/pidp1mods Note that if you apply this to your local clone, you will have to
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Changes for audio filtering and dynamic IOTs now in github
https://github.com/wjenh/pidp1mods Note that if you apply this to your local clone, you will have to
Oct 8
Bill E
,
Angelo Papenhoff/aap
2
Oct 8
A possible bug in pdp1.c
The schematics say this is what should happen. the signal 3X-TP 7-4 generates the pulse 0->IO ON
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A possible bug in pdp1.c
The schematics say this is what should happen. the signal 3X-TP 7-4 generates the pulse 0->IO ON
Oct 8
Bill E
, …
Angelo Papenhoff/aap
4
Oct 8
Dynamically loaded IOTs are implemented
Actually that sounds like a pretty sweet idea! For contributions of this kind a pull request on
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Dynamically loaded IOTs are implemented
Actually that sounds like a pretty sweet idea! For contributions of this kind a pull request on
Oct 8
Norbert Landsteiner
, …
Bradford Miller
8
Oct 8
P(i)DP-1 code and LLMs
Given the 1 drew about 2kw of power in it's normal configuration (could be more with additional
unread,
P(i)DP-1 code and LLMs
Given the 1 drew about 2kw of power in it's normal configuration (could be more with additional
Oct 8
Phillip Porch, MD
, …
Oscar Vermeulen
9
Oct 8
Fidgety parts
So, -put tape over each row of switches before putting on the wood board and flipping the whole thing
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Fidgety parts
So, -put tape over each row of switches before putting on the wood board and flipping the whole thing
Oct 8
Bill E
, …
Oscar Vermeulen
11
Oct 7
Better music playback for pidp-1 is (almost) here
Bill, Thank you! Give me a couple of days as I suffer some undesired Real Life Interference tomorrow
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Better music playback for pidp-1 is (almost) here
Bill, Thank you! Give me a couple of days as I suffer some undesired Real Life Interference tomorrow
Oct 7
R Clark
, …
Oscar Vermeulen
13
Oct 6
#127 is alive and well.
Bill, On Saturday, October 4, 2025 at 4:05:52 PM UTC+2 wjegr...@gmail.com wrote: I agree, the -1
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#127 is alive and well.
Bill, On Saturday, October 4, 2025 at 4:05:52 PM UTC+2 wjegr...@gmail.com wrote: I agree, the -1
Oct 6
Angelo Papenhoff/aap
, …
Matthias Barthel
31
Oct 6
New IO devices
Oscar, The io manual (http://bitsavers.informatik.uni-stuttgart.de/pdf/dec/pdp1/F25_PDP1_IO.pdf)
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New IO devices
Oscar, The io manual (http://bitsavers.informatik.uni-stuttgart.de/pdf/dec/pdp1/F25_PDP1_IO.pdf)
Oct 6
Bill E
,
Oscar Vermeulen
4
Oct 6
No music on the hardware rack version
Excelllent! Sigh, I just finished a little standalone app that does that, setaudio on/off. Having it
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No music on the hardware rack version
Excelllent! Sigh, I just finished a little standalone app that does that, setaudio on/off. Having it
Oct 6
Bill E
, …
Oscar Vermeulen
8
Oct 6
#95 is up and running, had some led issues
This is precisely the setup that currently use for all LEDs in a PiDP-1 before packing up a kit.
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#95 is up and running, had some led issues
This is precisely the setup that currently use for all LEDs in a PiDP-1 before packing up a kit.
Oct 6
Bill E
,
Oscar Vermeulen
9
Oct 6
Disassembler now has a compatibility mode for classic native macro
Bill, Apologies, I was offline for a few days. Python can call a C function, so that is no problem. I
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Disassembler now has a compatibility mode for classic native macro
Bill, Apologies, I was offline for a few days. Python can call a C function, so that is no problem. I
Oct 6
MICHAEL GARDI
, …
Bryce Jeannotte
4
Oct 3
I have finished my 2:3 Scale Type 30 Reproduction
Hey. Just noticed this nice writeup over on hackster.io: https://www.hackster.io/news/michael-gardi-s
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I have finished my 2:3 Scale Type 30 Reproduction
Hey. Just noticed this nice writeup over on hackster.io: https://www.hackster.io/news/michael-gardi-s
Oct 3
MICHAEL GARDI
,
Oscar Vermeulen
3
Oct 2
Curious. Who did the p7sim code?
We do need to visit the CHM in the coming months, with a PiDP-1 in hand, to fine-tune the phospor
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Curious. Who did the p7sim code?
We do need to visit the CHM in the coming months, with a PiDP-1 in hand, to fine-tune the phospor
Oct 2
Adam Thornton
, …
R Clark
8
Oct 1
#48 is alive and well
Looks good! I think I am going to go with the blue front panels as well. What can go in your empty
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#48 is alive and well
Looks good! I think I am going to go with the blue front panels as well. What can go in your empty
Oct 1
Chris Kostanick
, …
Oscar Vermeulen
63
Oct 1
Do We Have A Price Estimate For The Kit?
On Thursday, October 2, 2025 at 3:49:12 AM UTC+2 sunnybo...@gmail.com wrote: Unless there was a
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Do We Have A Price Estimate For The Kit?
On Thursday, October 2, 2025 at 3:49:12 AM UTC+2 sunnybo...@gmail.com wrote: Unless there was a
Oct 1
Paul Birkel
, …
sunnyboy010101
7
Oct 1
PiDP-1 Kit Bag-level Content
I decided to post my photos here as well, just for reference to anyone else wondering how their kit
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PiDP-1 Kit Bag-level Content
I decided to post my photos here as well, just for reference to anyone else wondering how their kit
Oct 1
Charles Ess
, …
Jon Jackson
5
Sep 30
“ESP01215E 7″ HDMI display — anyone tried it in PiDP-1?
Yes, thanks for this. I was also able to grab it from Digikey. Figuring out the physical dimensions
unread,
“ESP01215E 7″ HDMI display — anyone tried it in PiDP-1?
Yes, thanks for this. I was also able to grab it from Digikey. Figuring out the physical dimensions
Sep 30
