These graphics demos are very cool and are a great way to show off the machine. Thanks for the

If you have an iPhone/iPad/Mac, you might also find this useful: https://apps.apple.com/us/app/dec-

I think it's amazingly impressive, but that's just me. I'm running it, will check it in

I found an integer transpose and rotate algorithm at www.geometrictools.com and implemented the

The Type 23 Drum has been updated to actually cycle-steal and to use real-time determined timing

It now says 'HS CYCLE' like it should. More significantly, the way it turned on and off the

The brightness setting really wasn't correct. It was a scaling factor applied to all brightness

This is a bit embarrassing, a number of the makefiles had debugging turned on for gcc, some left over

Major (and tedious) tuning efforts have been made to be sure newpanel is as isolated from scheduler

and here I am struggling to write a program to rotate an ellipse in 2D while trying to learn the

Bugfix in t30dpy.c and t30dpy3.c, an older point could overwrite a newer one, should be the other way

I'm really enjoying writing C in the Arduino ecosystem. It's small, clean and pure. On Sat,

Installed. FYI one error when doing 'make' in Funstuff directory: am1 cgdemo.am1 am1: invalid

No feeback as usual. It really seems this was an implementation fail. I've changed things so red/

I still have my SYM-1 SBC with a keyboard, upgraded ROMs including a Digitalker ROM, and an S-100 bus

If you've ever wondering just what snowflake is doing to the display, t30dpy can accumulate some

A rendering issue in t30dpy3 specific to the pi using the trixie x11 hardware driver and alpha

The linux scheduler on some systems reportedly cause a pause in the panel updates every semi-random

To make it easier to deal with some of the wayland/labwc silliness, you can now drag the window by

Bill, I just downloaded the latest version of your pidp1-mods and installed it (default = all yes). I

This took some major effort to fix the light updating in pdp1 and a pretty deep analysis of the

t30dpy and t30dpy3 now center the window in x11 again. Bill

I probably missed something, I'll check it out as I put back window centering under x11. Bill

I laughed and woke the wife up with that one On Monday, June 15, 2026 at 12:40:53 PM UTC-4 wjegr...@

And I've answered my own question by doing, duh, some research. Its a known problem with the rpi5

https://github.com/wjenh/T30dpy-windows.git This has a statically linked exe that runs quite well.

I tracked down why p7sim performs so poorly on most platforms but is fine on the pi4. It's kind

https://flashbak.com/the-pdp-1-483567/

I've decided to stick with SDL2 for now. SDL3 has only been released on most of the Linux

Ok thanks Bill, The programflag drivers generates the sound via a rc filters. The program for the