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Bill E
2
7:40 AM
Looking for help with strange issue
Really getting frustrated with this one. I just tried a dual install, I can switch back and forth via
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Looking for help with strange issue
Really getting frustrated with this one. I just tried a dual install, I can switch back and forth via
7:40 AM
Bill E
,
Glenn Babecki
6
May 26
New Type 30 display emulator!
And as usual, I wasn't totally happy. I've refactored the code a bit once I realized that all
unread,
New Type 30 display emulator!
And as usual, I wasn't totally happy. I've refactored the code a bit once I realized that all
May 26
John Rayfield
,
Bill E
3
May 26
Can't get Pidp1 running
If that doesn't work, cd into the .../src/bliconlnlights/pdp1 directory in your install dir and
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Can't get Pidp1 running
If that doesn't work, cd into the .../src/bliconlnlights/pdp1 directory in your install dir and
May 26
Carlo Valpiani
, …
Norbert Landsteiner
4
May 24
Help with circle
Thanks for all the suggestions. I tried various combinations using Bill's ad1 but couldn't
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Help with circle
Thanks for all the suggestions. I tried various combinations using Bill's ad1 but couldn't
May 24
Bill E
23
May 24
Pidp1-mods development log
New display emulator added, t30dpy, to provide better performance.
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Pidp1-mods development log
New display emulator added, t30dpy, to provide better performance.
May 24
Steven Fellini
, …
Win Heagy
9
May 23
Problem using ET editor
Great, thanks. I'll give it a try. Win On Saturday, May 23, 2026 at 7:47:01 PM UTC-4 wjegr...@
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Problem using ET editor
Great, thanks. I'll give it a try. Win On Saturday, May 23, 2026 at 7:47:01 PM UTC-4 wjegr...@
May 23
Oscar Vermeulen
, …
Bill E
9
May 22
Life for the PDP-1?
You can try disassembling it with the disassembler in my repo, which is more recent than the one in
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Life for the PDP-1?
You can try disassembling it with the disassembler in my repo, which is more recent than the one in
May 22
Bill E
, …
Malcolm Ray
9
May 15
Random (heh) discussion for the day...
Some more experiments with the software random. A tiny change really improves the apparent randomness
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Random (heh) discussion for the day...
Some more experiments with the software random. A tiny change really improves the apparent randomness
May 15
Bill E
2
May 13
Lines, reimagined
Here's an even more impressive and I think pretty fun lines. This one uses vcontinue, which are
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Lines, reimagined
Here's an even more impressive and I think pretty fun lines. This one uses vcontinue, which are
May 13
Sgeo
May 9
PDP-1 Lisp on the web
Finally finished adding support for typewriter input, and the Lisp tape, to https://sgeo.github.io/
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PDP-1 Lisp on the web
Finally finished adding support for typewriter input, and the Lisp tape, to https://sgeo.github.io/
May 9
Bill E
2
May 7
Question about memory access
Lacking responses, I think I've figured out that a start, readin, continue, or examine will
unread,
Question about memory access
Lacking responses, I think I've figured out that a start, readin, continue, or examine will
May 7
Bill E
May 6
Another little graphics exampe
This would never have existed on any real PDP-1. Well, it could have, but only on separate monitors.
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Another little graphics exampe
This would never have existed on any real PDP-1. Well, it could have, but only on separate monitors.
May 6
Bill E
, …
Carlo Valpiani
8
May 5
How are people using their pidp-1s?
I'm using it as an art work on the wall with the Type 30 in a picture frame and a PiDP-8/I as a
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How are people using their pidp-1s?
I'm using it as an art work on the wall with the Type 30 in a picture frame and a PiDP-8/I as a
May 5
Bill E
May 3
P7sim fixed!
The subconscious is a wonderful thing. It just suddenly came to me what to look for, bingo. It will
unread,
P7sim fixed!
The subconscious is a wonderful thing. It just suddenly came to me what to look for, bingo. It will
May 3
Bill E
May 3
Just for fun
Hard to see the details, but this is the Type 340 using its Type 342 character generator to draw
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Just for fun
Hard to see the details, but this is the Type 340 using its Type 342 character generator to draw
May 3
Bill E
2
May 2
p7simES and Type 340 woes
I guess I shouldn't be that concerned. I've tweaked p7simES, (yes, went down the rabbit hole,
unread,
p7simES and Type 340 woes
I guess I shouldn't be that concerned. I've tweaked p7simES, (yes, went down the rabbit hole,
May 2
Bill E
May 1
Original maindec test for the Type 30 recovered
I found a binary that wouldn't load for the maindec test and managed to disassemble it The mac is
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Original maindec test for the Type 30 recovered
I found a binary that wouldn't load for the maindec test and managed to disassemble it The mac is
May 1
John Kennedy
, …
Carlo Valpiani
16
Apr 30
New iPhone app hopefully useful to PiDP users..
I updated the app again with a bunch of PiDP-x and SimH information so you always have it to hand.
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New iPhone app hopefully useful to PiDP users..
I updated the app again with a bunch of PiDP-x and SimH information so you always have it to hand.
Apr 30
Oscar Vermeulen
, …
sunnyboy010101
6
Apr 30
Newsletter, PiDP parts tester, Kicads
One other thing Bill... I notice the 'blinky lights' behaviour is much improved compared to
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Newsletter, PiDP parts tester, Kicads
One other thing Bill... I notice the 'blinky lights' behaviour is much improved compared to
Apr 30
Bill E
2
Apr 30
4 displays at once
Hmm, what happened to the pdf? One more time..
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4 displays at once
Hmm, what happened to the pdf? One more time..
Apr 30
Bill E
2
Apr 30
Critical patch in pidp1-mods
My apologies, I messed up the critical patch update, pushed the wrong version. Too little sleep. All
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Critical patch in pidp1-mods
My apologies, I messed up the critical patch update, pushed the wrong version. Too little sleep. All
Apr 30
Curtis Vaughan (ACSS)
, …
Bill E
7
Apr 29
Raspberry fan?
It seems to be OK. Mine is running on a pi5, but I do occasionally test on a pi4 and don't
unread,
Raspberry fan?
It seems to be OK. Mine is running on a pi5, but I do occasionally test on a pi4 and don't
Apr 29
Bill E
Apr 27
Type 340 documentation added
This covers my implementation. I'm including a pdf of it just because I think it's such a
unread,
Type 340 documentation added
This covers my implementation. I'm including a pdf of it just because I think it's such a
Apr 27
Bill E
Apr 26
Broken display fixed
Sorry, but I broke display in my earlier update, it's fixed. More cross-platform gcc diffs. On
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Broken display fixed
Sorry, but I broke display in my earlier update, it's fixed. More cross-platform gcc diffs. On
Apr 26
Bill E
,
Peter Long
2
Apr 25
Off topic, Linux question but it is relevant.
Nice Computerphile episode B is the forerunner to C - but seemed lost - Angelo Papenhoff decided to
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Off topic, Linux question but it is relevant.
Nice Computerphile episode B is the forerunner to C - but seemed lost - Angelo Papenhoff decided to
Apr 25
Bill E
Apr 22
Type 340 (and Type 343 slave displays and Type 347 subroutine interface) done!
It is an amazing device. And yes, the manual says 'slave'. It's perfectly appropriate in
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Type 340 (and Type 343 slave displays and Type 347 subroutine interface) done!
It is an amazing device. And yes, the manual says 'slave'. It's perfectly appropriate in
Apr 22
Charles Ess
, …
Bill E
12
Apr 20
mozart_sym35_1feb68.bin stops loading
Thanks on all fronts, Bill. Yes, FWIW, the EXTEND light came on - as it does with the working Bach
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mozart_sym35_1feb68.bin stops loading
Thanks on all fronts, Bill. Yes, FWIW, the EXTEND light came on - as it does with the working Bach
Apr 20
Bill E
Apr 19
Rather massive change in my branch, read on if you're interested
ALL of the low-level display code that was intertwined with the emulator main loop is now gone. It
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Rather massive change in my branch, read on if you're interested
ALL of the low-level display code that was intertwined with the emulator main loop is now gone. It
Apr 19
Bill E
Apr 15
Type 340 is alive!
Ok, doesn't look like much: But under the covers, it's pretty cool. It's being drawn with
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Type 340 is alive!
Ok, doesn't look like much: But under the covers, it's pretty cool. It's being drawn with
Apr 15
Bill E
,
Norbert Landsteiner
2
Apr 13
Type 340 display questions
I think, Lars Brinkoff may know more about the 340, but probably mostly as related to PDP-6 and its
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Type 340 display questions
I think, Lars Brinkoff may know more about the 340, but probably mostly as related to PDP-6 and its
Apr 13