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www.uninformativ.de

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movq
www.uninformativ.de
 (20m ago)

2024 was a funny year: The year begins and ends with calendar week 1:

Download

The one in January being 2024-W01 and the one in December 2025-W01.

🤓

(Hmmm, my printed LaTeX calendar using tikz-kalender gets it wrong or uses different week definitions. It shows next week as 53. 🤔)

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movq
www.uninformativ.de
 (15h ago)

I’ve been making a little toy operating system for the 8086 in the last few days. Now that was a lot of fun!

I don’t plan on making that code public. This is purely a learning project for myself. I think going for real-mode 8086 + BIOS is a good idea as a first step. I am well aware that this isn’t going anywhere – but now I’ve gained some experience and learned a ton of stuff, so maybe 32 bit or even 64 bit mode might be doable in the future? We’ll see.

It provides a syscall interface, can launch processes, read/write files (in a very simple filesystem).

Here’s a video where I run it natively on my old Dell Inspiron 6400 laptop (and Warp 3 later in the video, because why not):

https://movq.de/v/893daaa548/los86-p133-warp3.mp4

(Sorry for the skewed video. It’s a glossy display and super hard to film this.)

It starts with the laptop’s boot menu and then boots into the kernel and launches a shell as PID 1. From there, I can launch other processes (anything I enter is a new process, except for the exit at the end) and they return the shell afterwards.

And a screenshot running in QEMU:

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movq
www.uninformativ.de
 (1w ago)
↳ In-reply-to » Goodbye Blender, I guess? 🤔

@lyse@lyse.isobeef.org Mostly small and simple stuff, like cable management, headphone rests, pill dispensers (that I didn’t end up using), … The most elaborate thing I made was that contraption for my keyboard, which is a bit hard to explain right now, so here’s some photos:

Image


Image

I didn’t end up using that, either. 🥴

In general, I print very little. So little that some of my supplies have simply gone bad, like that “3D LAC” (sprayable glue).

@aelaraji@aelaraji.com Yeah, I saw that when googling the issue. I’m on Linux, there are no DLLs to swap. I could use an older version indeed. 🤔 Let’s see if I can find some better alternative first. (Let’s face it, Blender is hard to use.)

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movq
www.uninformativ.de
 (1w ago)

Goodbye Blender, I guess? 🤔

“A graphics card and driver with support for OpenGL 4.3 or higher is required. Installing the latest driver for your graphics card might resolve the issue.”
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“A graphics card and driver with support for OpenGL 4.3 or higher is required. Installing the latest driver for your graphics card might resolve the issue.”

A bit annoying, but not much of a problem. The only thing I did with Blender was make some very simple 3D-printable objects.

I’ll have a look at the alternatives out there. Worst case is I go back to Art of Illusion, which I used heavily ~15 years ago.

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movq
www.uninformativ.de
 (12w ago)

Someone recommended a nice (German) talk:

https://media.ccc.de/v/ds24-394-linux-hello-world-nur-mit-einem-hex-editor

Luckily, everything™ is easier™ on DOS with .COM files. A fun little time killer to make a HELLO.COM using only a hex editor, the Intel docs and the DOS interrupt list.

That ModR/M stuff is easy in the end, but it took me quite some time to understand it. 🥴

(I’m still new to DOS on this level and didn’t know that all segment registers are initialized to the same values, apparently, so copying CS to DS was not necessary. Too lazy to update the screenshot. File size shrinks by 4 bytes.)

https://movq.de/v/0139fbaabc/doshello.png

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movq
www.uninformativ.de
 (14w ago)
↳ In-reply-to » @lyse Gosh, that sounds so horrible. 🙈🤢

Speaking of public transportation, though: If it works, then it’s an amazing system. I love it.

I recently took the time to find an alternative route to one of my doctors. Hardly any people using that route and it’s faster. Absolutely brilliant. It’s like having a chauffeur. 😅

But navigating through that system is also a total nightmare. Which bus takes you to which places at which times, getting info about current construction sites, all that stuff. It takes forever.

And it doesn’t help at all that this is what their website looks like:

https://movq.de/v/acb23dc1c2/s.png

You can’t move that window at the bottom. It just sits there and takes up space from the map. It gets even worse: When you ask for a route, you get to see the buses and individual stops and all that – but all in that little window with that large font! Why do we all have widescreen monitors and than stack UI items vertically?

Sure, 30 years ago it was much worse. But it could also be much better today. 😅

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movq
www.uninformativ.de
 (14w ago)
↳ In-reply-to » Thinking about what to do for the next Advent of Code. 🤔

Another idea for the upcoming Advent Of Code 2024:

OS/2 Warp 4 came with Java and that not only meant a runtime but a JDK including API docs. So, for AoC, I could try to solve as many puzzles as I can in that environment, directly on my old Pentium. For later puzzles, I’ll definitely want to switch to my normal workstation for faster development cycles – but I can still use Java and try to backport the solutions.

Sounds interesting. 🤔

https://movq.de/v/81ac0142f2/1.ff.jpg
https://movq.de/v/81ac0142f2/2.ff.jpg

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movq
www.uninformativ.de
 (16w ago)

There was a time when WebKit (I think it was WebKit) stored metadata of downloads in extended attributes. Like the URL you were downloading it from.

https://movq.de/v/f79b94485a/s.png

This was really useful. 🤔 Chromium also did it for a while and then they removed it due to privacy concerns. Now none of the popular browsers do it anymore. 🫤

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movq
www.uninformativ.de
 (17w ago)
↳ In-reply-to » @movq Is there a good way to get jenny to do a one-off fetch of a feed, for when you want to fill in missing parts of a thread? I just added @slashdot to my private follow file just because @prologic keeps responding to the feed :-P and I want to know what he's commenting on even though I don't want to see every new slashdot twt.

@falsifian@www.falsifian.org @bender@twtxt.net I pushed an alternative implementation to the fetch-context branch. This integrates the whole thing into mutt/jenny.

You will want to configure a new mutt hotkey, similar to the “reply” hotkey:

macro index,pager <esc>C "\
<enter-command> set my_pipe_decode=\$pipe_decode nopipe_decode<Enter>\
<pipe-message> jenny -c<Enter>\
<enter-command> set pipe_decode=\$my_pipe_decode; unset my_pipe_decode<Enter>" \
"Try to fetch context of current twt, like a missing root twt"

This pipes the mail to jenny -c. jenny will try to find the thread hash and the URL and then fetch it. (If there’s no URL or if the specific twt cannot be found in that particular feed, it could query a Yarn pod. That is not yet implemented, though.)

The whole thing looks like this:

https://movq.de/v/0d0e76a180/jenny.mp4

In other words, when there’s a missing root twt, you press a hotkey to fetch it, done.

I think I like this version better. 🤔

(This needs a lot of testing. 😆)

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movq
www.uninformativ.de
 (18w ago)
↳ In-reply-to » I've decided to try and get rid of as much stress as possible. Stupid things stress me out, some things are more important to fix then others. But today I got started, by fixing the xeon bulb on our car, been ignoring it for a year, because the car garage said it'll cost me 350$ so get it changed (Because they had to remove the whole front).. So because of that I did not prioritize it. But today I went and bought a bulb for 50$ and I openened the hood of the car and saw I could just replace it my self by simply removing a cover to get access to the bulb. So I've been stressing over nothing for a year simply because I did not check and took their word for it. next thing to get fixed is a rotten board under a window outside, been bugging me for a long time, now I want to get that sorted next. All these small things adds up, and I want peace of mind.

@stigatle@yarn.stigatle.no Oh, I know that feeling all too well. Go for it! ✌️

Also:

https://movq.de/v/8cdad1ae3a/s.png

😅

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movq
www.uninformativ.de
 (20w ago)
↳ In-reply-to » A equivalent yarnc debug <url> only sees the 2nd hash Media

@prologic@twtxt.net In that screenshot (https://twtxt.net/media/7c3rEWveU64SAxrXZ6CDYS.png), all the bracketed stuff is duplicated again, compared to lyse’s original twt. I suspect that’s the cause for the changed hash.

I could not reproduce this by manually duplicating those text areas in lyse’s twt. I end up with the hash pjdciga instead, but I probably mistyped something.

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movq
www.uninformativ.de
 (23w ago)

Always makes me giggle a bit like an idiot when I see OS/2’s equivalent of the “trash” or “recycle bin”. The English original calls it “shredder” (which is appropriate – it deletes files, there is no delay like in Windows 95’s “recycle bin”) …

… but the German word for it is “Reißwolf”. That used to be a more or less common term, but nowadays it’s quite archaic. And it sounds needlessly violent. 😂🐺

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movq
www.uninformativ.de
 (24w ago)

There’s something special about writing your own programs for OS/2 in C and finally getting it to work after sifting through lots of ancient docs. ✨

I’d be totally lost without KO Myung-Hun’s website and Open Watcom v2. 🙏

(I’m making a little tool to dump floppy disks to image files. I know these programs already exist – I’m doing it for fun and to learn. The task itself is not complicated, but finding the correct docs is.)

https://movq.de/v/13597a4d87/os2dump.jpg

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movq
www.uninformativ.de
 (24w ago)

Thinking about what to do for the next Advent of Code. 🤔

Writing the solutions as DOS programs in C was super fun last year and I don’t think I can top that. 💾

Something in the realm of retrocomputing would be nice. I wonder how far I can get using QuickBASIC 4.5. Haven’t touched this in ages – but I have a feeling that this could be rather painful. 😂

Or maybe I’ll just go for Rust again, because I’m not using that a lot and keeping up with it could be useful. Or maybe a mix of both, “as many puzzles as possible with QB 4.5, Rust for the rest”. 🤔

https://movq.de/v/ac63405fd1/b.jpg

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movq
www.uninformativ.de
 (25w ago)

What a night. The first storm cluster passed us in about 25km distance.

The second one hit us right in the face. The sky was constantly flashing and there was a continuous rumble, not individual thunder. (You can’t really hear it in the video, I was too close to the window …)

https://movq.de/v/e949ae6403/MVI_7687.MOV.mp4

Most of the lightning was inside the clouds, apparently.

https://movq.de/v/e949ae6403/IMG_7648.JPG

No water damage this time, luckily.

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movq
www.uninformativ.de
 (27w ago)
↳ In-reply-to » Got a new pack of rosin for my double bass. There was a large bubble of air trapped inside. 🥴 It slowly made its way up over the course of a couple of days and now it finally burst. 😅

@lyse@lyse.isobeef.org Indeed, it’s quite translucent. 😃

It depends on the type of rosin, though. The one that I used before is basically opaque and also much harder:

Download

I intentionally went for the softer rosin this time, because I find it easier to use. It’s stickier and can be applied to the bow much easier.

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