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Bill E
,
MICHAEL GARDI
3
9:56 AM
Here's an example of what you can do with the Type 340 display
Very impressive and scary. I am curious about the code emitted. Did it model the cube and add
unread,
Here's an example of what you can do with the Type 340 display
Very impressive and scary. I am curious about the code emitted. Did it model the cube and add
9:56 AM
Bill E
, …
Paul Birkel
9
Jun 28
Recent changes summary
Comprehensive test suite added for DCS2, bug fix in pdp1.c around B5/B6 handling, new high speed
unread,
Recent changes summary
Comprehensive test suite added for DCS2, bug fix in pdp1.c around B5/B6 handling, new high speed
Jun 28
Bill E
,
ChrisK
2
Jun 27
Thanks!
I'm really enjoying writing C in the Arduino ecosystem. It's small, clean and pure. On Sat,
unread,
Thanks!
I'm really enjoying writing C in the Arduino ecosystem. It's small, clean and pure. On Sat,
Jun 27
Bill E
,
sunnyboy010101
31
Jun 20
Pidp1-mods development log
Installed. FYI one error when doing 'make' in Funstuff directory: am1 cgdemo.am1 am1: invalid
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Pidp1-mods development log
Installed. FYI one error when doing 'make' in Funstuff directory: am1 cgdemo.am1 am1: invalid
Jun 20
Bill E
2
Jun 20
Soroban question
No feeback as usual. It really seems this was an implementation fail. I've changed things so red/
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Soroban question
No feeback as usual. It really seems this was an implementation fail. I've changed things so red/
Jun 20
Bill E
, …
Jon Jackson
21
Jun 18
Dragging people screaming and kicking into the future
I still have my SYM-1 SBC with a keyboard, upgraded ROMs including a Digitalker ROM, and an S-100 bus
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Dragging people screaming and kicking into the future
I still have my SYM-1 SBC with a keyboard, upgraded ROMs including a Digitalker ROM, and an S-100 bus
Jun 18
Bill E
Jun 18
Some fun snowflake details
If you've ever wondering just what snowflake is doing to the display, t30dpy can accumulate some
unread,
Some fun snowflake details
If you've ever wondering just what snowflake is doing to the display, t30dpy can accumulate some
Jun 18
Bill E
Jun 18
More t30dpy fixes for the never-ending wayland./labwc bugs
A rendering issue in t30dpy3 specific to the pi using the trixie x11 hardware driver and alpha
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More t30dpy fixes for the never-ending wayland./labwc bugs
A rendering issue in t30dpy3 specific to the pi using the trixie x11 hardware driver and alpha
Jun 18
Bill E
Jun 17
A note on the new panel driver
The linux scheduler on some systems reportedly cause a pause in the panel updates every semi-random
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A note on the new panel driver
The linux scheduler on some systems reportedly cause a pause in the panel updates every semi-random
Jun 17
Bill E
Jun 17
SIgnificant additon to both t30dpy versions
To make it easier to deal with some of the wayland/labwc silliness, you can now drag the window by
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SIgnificant additon to both t30dpy versions
To make it easier to deal with some of the wayland/labwc silliness, you can now drag the window by
Jun 17
Bill E
, …
sunnyboy010101
7
Jun 16
The new panel driver is ready.
Bill, I just downloaded the latest version of your pidp1-mods and installed it (default = all yes). I
unread,
The new panel driver is ready.
Bill, I just downloaded the latest version of your pidp1-mods and installed it (default = all yes). I
Jun 16
Bill E
Jun 16
Success! The CHM test program now works propery!
This took some major effort to fix the light updating in pdp1 and a pretty deep analysis of the
unread,
Success! The CHM test program now works propery!
This took some major effort to fix the light updating in pdp1 and a pretty deep analysis of the
Jun 16
Bill E
,
Carlo Valpiani
6
Jun 16
Pi5, trixie, wayland continued
t30dpy and t30dpy3 now center the window in x11 again. Bill
unread,
Pi5, trixie, wayland continued
t30dpy and t30dpy3 now center the window in x11 again. Bill
Jun 16
Bill E
, …
Carlo Valpiani
10
Jun 16
Very annoying issue using the trixie os release on the pi5
I probably missed something, I'll check it out as I put back window centering under x11. Bill
unread,
Very annoying issue using the trixie os release on the pi5
I probably missed something, I'll check it out as I put back window centering under x11. Bill
Jun 16
Bill E
,
AB
2
Jun 15
The panel_pidp1 simuation error
I laughed and woke the wife up with that one On Monday, June 15, 2026 at 12:40:53 PM UTC-4 wjegr...@
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The panel_pidp1 simuation error
I laughed and woke the wife up with that one On Monday, June 15, 2026 at 12:40:53 PM UTC-4 wjegr...@
Jun 15
Bill E
2
Jun 13
Socket writes on the pi 5
And I've answered my own question by doing, duh, some research. Its a known problem with the rpi5
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Socket writes on the pi 5
And I've answered my own question by doing, duh, some research. Its a known problem with the rpi5
Jun 13
Bill E
Jun 13
Win 11 executable of T30dpy added to its own repository
https://github.com/wjenh/T30dpy-windows.git This has a statically linked exe that runs quite well.
unread,
Win 11 executable of T30dpy added to its own repository
https://github.com/wjenh/T30dpy-windows.git This has a statically linked exe that runs quite well.
Jun 13
Bill E
2
Jun 8
SDL3 version of t30dpy added
I tracked down why p7sim performs so poorly on most platforms but is fine on the pi4. It's kind
unread,
SDL3 version of t30dpy added
I tracked down why p7sim performs so poorly on most platforms but is fine on the pi4. It's kind
Jun 8
AB
Jun 7
some nice little snippets
https://flashbak.com/the-pdp-1-483567/
unread,
some nice little snippets
https://flashbak.com/the-pdp-1-483567/
Jun 7
Bill E
,
Whit Turner
3
Jun 5
Question about OS versions people are using
I've decided to stick with SDL2 for now. SDL3 has only been released on most of the Linux
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Question about OS versions people are using
I've decided to stick with SDL2 for now. SDL3 has only been released on most of the Linux
Jun 5
Matthias Barthel
,
Bill E
3
Jun 4
Sound with the pdp1
Ok thanks Bill, The programflag drivers generates the sound via a rc filters. The program for the
unread,
Sound with the pdp1
Ok thanks Bill, The programflag drivers generates the sound via a rc filters. The program for the
Jun 4
Bill E
, …
Win Heagy
18
Jun 3
Looking for help with strange issue
Good point. Normally, should be no need to mix binaries, and the panel driver is the only thing that
unread,
Looking for help with strange issue
Good point. Normally, should be no need to mix binaries, and the panel driver is the only thing that
Jun 3
Bill E
,
Glenn Babecki
8
Jun 2
New Type 30 display emulator!
I've done some major rework of t30dpy's alpha blending and initial color code. It was over-
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New Type 30 display emulator!
I've done some major rework of t30dpy's alpha blending and initial color code. It was over-
Jun 2
Bill E
May 31
Some interesting feedback on the pidp-1
When I was at the Computer History Museum last Dec watching the last running PDP-1 and Type 30
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Some interesting feedback on the pidp-1
When I was at the Computer History Museum last Dec watching the last running PDP-1 and Type 30
May 31
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
unread,
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
unread,
Help with circle
Thanks for all the suggestions. I tried various combinations using Bill's ad1 but couldn't
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...@
unread,
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
unread,
Lines, reimagined
Here's an even more impressive and I think pretty fun lines. This one uses vcontinue, which are
May 13