Searching txt.sour.is

Twts matching #0
Sort by: Newest, Oldest, Most Relevant
@rlafuente@ciberlandia.pt
ciberlandia.pt
 (25w ago)

Os comentários ao post no bsky são 5 estrelas:

  • “Sound of a man fighting DESPERATELY not to turn into Donald Duck during a full moon.”
  • “The WETNESS is what gets me.”
  • “Heartbreaking: your favorite sports commentator revealed to be a liquid”
  • “What the fuck were those crunching sounds around 0:45? Why did it think it needed crunching sounds? What was it eating? What has it killed?”

⤋ Read More
movq
www.uninformativ.de
 (27w ago)

@lyse@lyse.isobeef.org AI result ahead, feel free to ignore.

I “asked” the AI at work the same question out of morbid curiousity. It “said” that SQLite converts that integer to floating point internally on overflows and then, when converting back, the x86 instruction cvttsd2si will turn it into 0x8000000000000000, even if the actual floating point value is outside of that range. So, yes, it allegedly actually saturates, as a side effect of the type conversion.

I couldn’t find anything about that automatic conversion in SQLite’s manual, yet, but an experiment looks like it might be true:

sqlite> select typeof(1 << 63);
╭─────────────────╮
│ typeof(1 << 63) │
╞═════════════════╡
│ integer         │
╰─────────────────╯

sqlite> select typeof((1 << 63) - 1);
╭──────────────────────╮
│ typeof((1 << 63) ... │
╞══════════════════════╡
│ real                 │
╰──────────────────────╯

As for cvttsd2si, this source confirms the handling of 0x8000000000000000 on range errors: https://www.felixcloutier.com/x86/cvttsd2si

The following C program also confirms it (run through gdb to see cvttsd2si in action):

<a href="https://txt.sour.is/search?q=%23include">#include</a> <stdint.h>
<a href="https://txt.sour.is/search?q=%23include">#include</a> <stdio.h>

int
main()
{
    int64_t i;
    double d;

    /* -3000 instead of -1, because `double` can’t represent a
     * difference of -1 at this scale. */
    d = -9223372036854775808.0 - 3000;

    i = d;
    printf("%lf, 0x%lx, %ld\n", d, i, i);

    return 0;
}

(Remark about AI usage: Fine, I got an answer and maybe it’s even correct. But doing this completely ruined it for me. It would have been much more satisfying to figure this out myself. I actually suspected some floating point stuff going on here, but instead of verifying this myself I reached for the unethical tool and denied myself a little bit of fun at the weekend. Won’t do that again.)

⤋ Read More
movq
www.uninformativ.de
 (27w ago)

@lyse@lyse.isobeef.org

Disclaimer: Can’t guarantee that I’m fully awake and I’m being trained at work not to use my brain anymore, so maybe this is complete bullshit. 😪🧟‍♀️

It says here that SQLite uses signed integers:

https://sqlite.org/datatype3.html

In pure bits, 1 << 63 would be 0x8000000000000000, but as a signed value, it gets interpreted as -9223372036854775808. Subtracting 1 yields -9223372036854775809 – but that doesn’t fit in 64 bits anymore. It’s possible that SQLite doesn’t want to wrap around but instead saturates? Haven’t checked. 🤔

With 62 bits, there is enough room.

With 1 << 64, I have no idea how SQLite wants to handle this, because this should immediately trigger a warning, because it doesn’t fit right away. Maybe it gets truncated to 0?

sqlite> select printf('0x%x', 2 * (1 << 64));
╭──────────────────────╮
│ printf('0x%x', 2 ... │
╞══════════════════════╡
│ 0x0                  │
╰──────────────────────╯
sqlite> select printf('0x%x', 0 - 1);
╭──────────────────────╮
│ printf('0x%x', 0 ... │
╞══════════════════════╡
│ 0xffffffffffffffff   │
╰──────────────────────╯
sqlite> select printf('0x%x', 0 - 2);
╭──────────────────────╮
│ printf('0x%x', 0 ... │
╞══════════════════════╡
│ 0xfffffffffffffffe   │
╰──────────────────────╯

⤋ Read More
aelaraji
aelaraji.com
 (32w ago)

@kiwu@twtxt.net Sorry, I have two functional brain cells left in my brain, and I’m not sure if you’re asking What am I putting in it, as in a) when making some? Or as in b) when consuming/serving it?

a) 1L milk (0.5L cold + 0.5L warm @ ~45 °C), a bit of store bought yogourt for the bacteria, sugar and vanilla extract.
b) Most of the time, as is. But I’ve tried once: adding in a couple of diced strawberries that have been sitting in granulated sugar for a couple of minutes, until they’d released enough syrup, and I think I might’ve caught a new addiction on top of the original one.

What do you put in yours?

⤋ Read More
lyse
lyse.isobeef.org
 (38w ago)
↳ In-reply-to » @lyse Ohh, Winter Wonderland. Lovely!

@movq@www.uninformativ.de I was also extremely surprised and couldn’t believe it myself. But around the hair were definitely two, three millimeters of ice with a bunch of snow on top. I couldn’t simply brush it off, the hair were all frozen together. Back in the house, it took maybe three minutes to melt the solidified white stuff and free up and disconnect the individual hair. Crazy.

Yeah, 0°C in town, maybe -2°C on the summit. It definitely didn’t feel all the cold, but I came prepared with a few layers of cloth.

⤋ Read More
movq
www.uninformativ.de
 (38w ago)
↳ In-reply-to » What a beautiful, beautiful 0°C Sunday arvo and evening! The weather forecast delayed the snow by the minute. An hour or so after it finally started very, very lightly, I headed off for the woods to check out the lake again. Unfortunately, with the fresh snow layer, the crazy wild surface texture of the ice sheet wasn't visible anymore. But it brought some other nice views and photo opportunities.

@lyse@lyse.isobeef.org Ohh, Winter Wonderland. Lovely!

Never had frozen hair. 😳 With just around 0°C? 🤔

⤋ Read More
lyse
lyse.isobeef.org
 (38w ago)

What a beautiful, beautiful 0°C Sunday arvo and evening! The weather forecast delayed the snow by the minute. An hour or so after it finally started very, very lightly, I headed off for the woods to check out the lake again. Unfortunately, with the fresh snow layer, the crazy wild surface texture of the ice sheet wasn’t visible anymore. But it brought some other nice views and photo opportunities.

I initially thought that I just go for a quick turn. However, with the snowfall a wee bit increasing I was hooked and kept going. Visibility was poor, but the snow blankets just looked too stunning. The road surfaces were quite slippery, so I often just walked alongside the pathways. On downhill slopes I had some good fun sliding down the road on my feet. With varying success. Luckily, I managed not to fall.

On the summit of the mountain the twigs had those absolutely magnificently looking windblown crystal coverings. Awwwwwww! They never get old. It was already getting dark, so the camera was tired and wanted to sleep. The snow program then made use of the flash and I’m quite pleased with how these shots turned out.

Two deer crossed the road in front of me and ran into the woods, that was sight for sore eyes. Although I felt bad that they had to flee from me in this white terrain. By the time I got home, the snow had accumulated around eight centimeters in height, even in town down in the valley. Walking on this fresh snow is just amazing. And I love the sound it makes. Today, the snow consistency must have been just right, because the crushing sound was really loud.

I cannot recall that I had frozen hair and beard before, but today, there was a thick ice buildup. In case I had, it was definitely never this much. Felt really cool.

Enough of this preliminary skirmishing, there ya go: https://lyse.isobeef.org/waldspaziergang-2026-01-25/

⤋ Read More
lyse
lyse.isobeef.org
 (39w ago)
↳ In-reply-to » https://github.com/unix-v4-commentary/unix-v4-source-commentary

Wow, as I anticipated, this is waaay out of my capabilities to really understand it. But I’m quite happy to just have spotted a mistake in an explanatory comment in section 4.5.2 “The icode Array”. Of course, it should be /e + tc + /i + ni + t\0. Let’s hope that my e-mail with the patch actually makes it into Briam’s inbox. I fear GMail just hides it in the spam folder.

⤋ Read More
@villares@ciberlandia.pt
ciberlandia.pt
 (41w ago)

Hey folks! We have recently had a wonderful new release of #py5, read about the new 3D trimesh integration feature and the matplotlib TextPath integration.
That release was quickly followed by a release to fix some small issues that surfaced this last week. Please check out py5 0.10.9a1 and join us at https://github.com/py5coding/py5generator/discussions to share your experiences!

#CreativeCoding #Processing #Python #genuary (sorry for the hashtag spamming, I couldn’t resist!)

⤋ Read More
lyse
lyse.isobeef.org
 (42w ago)
↳ In-reply-to » @movq That's cool! I also like the name of your library. :-) I assume you made the thing load quickly, didn't you?

@movq@www.uninformativ.de Yeah, I see. Just crudely checked on my computer, with around 0.013 seconds, Python 2.7 seems a tad faster than Python 3.14’s 0.023 seconds in this little program.

The lazy imports sound not too bad, but I just skimmed over them. There are surprisingly many exceptions, but yeah, no way around them. :-)

⤋ Read More
movq
www.uninformativ.de
 (42w ago)
↳ In-reply-to » @movq That's cool! I also like the name of your library. :-) I assume you made the thing load quickly, didn't you?

The baseline here is about 55 ms for nothing, btw. Python ain’t fast to start up.

$ time python -c 'exit(0)'

real    0m0.055s
user    0m0.046s
sys     0m0.007s

⤋ Read More
movq
www.uninformativ.de
 (42w ago)

My little toy operating system from last year runs in 16-bit Real Mode (like DOS). Since I’ve recently figured out how to switch to 64-bit Long Mode right after BIOS boot, I now have a little program that performs this switch on my toy OS. It will load and run any x86-64 program, assuming it’s freestanding, a flat binary, and small enough (< 128 KiB code, only uses the first 2 MiB of memory).

Here I’m running a little C program (compiled using normal GCC, no Watcom trickery):

https://movq.de/v/b27ced6dcb/los86%2D64.mp4

Image

Next steps could include:

  • Use Rust instead of C for that 64-bit program?
  • Provide interrupt service routines. (At the moment, it just keeps interrupts disabled.)

⤋ Read More
movq
www.uninformativ.de
 (43w ago)
↳ In-reply-to » Wow, @movq, so many tables. No idea what I expected (I'm totally clueless on this low-level stuff), but that was quite an interesting surprise to me. https://www.uninformativ.de/blog/postings/2025-12-21/0/POSTING-en.html

@lyse@lyse.isobeef.org I was surprised by that as well. 😅 I thought these were features that you can use, but no, you must do all this.

By the way, I now fixed the issue that I mentioned at the end and it works on the netbook now. 🥳

Image

⤋ Read More
movq
www.uninformativ.de
 (43w ago)
↳ In-reply-to » H… Ho… How have I not heard about vim-tagbar before? 😳

@lyse@lyse.isobeef.org Yeah, well, given that I didn’t need this for such a long time, it’s probably not an essential tool. 😅

I’ve often wanted to have an outline of text documents, though, and tagbar/ctags can do that as well:

Image

Image

This isn’t as powerful as the “Navigator” tool in StarOffice/LibreOffice (which can be used to rearrange the document), but still pretty useful:

https://www.uninformativ.de/blog/postings/2024-05-23/0/so31.mp4

⤋ Read More
movq
www.uninformativ.de
 (44w ago)

If your very popular project with lots of stars on GitHub is over 10 years old, and you’re still at a pre-1.0 version because you’re using SemVer and a 1.0 would mean making some kind of commitment and that’s somehow not desirable for you, then I think you’re doing something wrong. 🤔

⤋ Read More
prologic
twtxt.net
 (44w ago)

I’m having to write my own functions like this in mu just to solve AoC puzzles :D

fn pow10(k) {
    p := 1
    i := 0
    while i < k {
        p = p * 10
        i = i + 1
    }
    return p
}

⤋ Read More
movq
www.uninformativ.de
 (44w ago)
↳ In-reply-to » Advent of Code 2025 starts tomorrow. 🥳🎄

Alright, Advent of Code is over:

https://www.uninformativ.de/blog/postings/2025-12-12/0/POSTING-en.html

It’s been quite the time sink, especially with the DOS games on top, but it was fun. 🥳

In case you’re wondering: All puzzles (except for part 2 of day 10) were doable in Python 1 on SuSE Linux 6.4 and ran in a finite time on the Pentium 133. Puzzle 10/2 might have been doable as well if I had better education. 🤣

⤋ Read More
prologic
twtxt.net
 (47w ago)

Tired to re-enable the Ege route to git.mills.io today (after finishing work) and this is what I found 🤯 Tehse asshole/cunts are still at it !!! 🤬 – So let’s instead see if this works:

$ host git.mills.io 1.1.1.1
Using domain server:
Name: 1.1.1.1
Address: 1.1.1.1#53
Aliases:

git.mills.io is an alias for fuckoff.mills.io.
fuckoff.mills.io has address 127.0.0.1


PS: Would anyone be interested if I started a massive global class action suit against companies that do this kind of abusive web crawling behavior, violate/disregards robots.txt and whatever else standards that are set in stone by the W3C? 🤔

⤋ Read More
movq
www.uninformativ.de
 (47w ago)
↳ In-reply-to » I just noticed this pattern:

And regarding those broken URLs: I once speculated that these bots operate on an old dataset, because I thought that my redirect rules actually were broken once and produced loops. But a) I cannot reproduce this today, and b) I cannot find anything related to that in my Git history, either. But it’s hard to tell, because I switched operating systems and webservers since then …

But the thing is that I’m seeing new URLs constructed in this pattern. So this can’t just be an old crawling dataset.

I am now wondering if those broken URLs are bot bugs as well.

They look like this (zalgo is a new project):

https://www.uninformativ.de/projects/slinp/zalgo/scksums/bevelbar/

When you request that URL, you get redirected to /git/:

$ curl -sI https://www.uninformativ.de/projects/slinp/zalgo/scksums/bevelbar/
HTTP/1.0 301 Moved Permanently
Date: Sat, 22 Nov 2025 06:13:51 GMT
Server: OpenBSD httpd
Connection: close
Content-Type: text/html
Content-Length: 510
Location: /git/

And on /git/, there are links to my repos. So if a broken client requests https://www.uninformativ.de/projects/slinp/zalgo/scksums/bevelbar/, then sees a bunch of links and simply appends them, you’ll end up with an infinite loop.

Is that what’s going on here or are my redirects actually still broken … ?

⤋ Read More
movq
www.uninformativ.de
 (47w ago)
↳ In-reply-to » My goodness, a new level of stupidity.

I just noticed this pattern:

uninformativ.de 201.218.xxx.xxx - - [22/Nov/2025:06:53:27 +0100] "GET /projects/lariza/multipass/xiate/padme/gophcatch HTTP/1.1" 301 0 "" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36"
www.uninformativ.de 103.10.xxx.xxx  - - [22/Nov/2025:06:53:28 +0100] "GET http://uninformativ.de/projects/lariza/multipass/xiate/padme/gophcatch HTTP/1.1" 400 0 "" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36"

Let me add some spaces to make it more clear:

    uninformativ.de 201.218.xxx.xxx - - [22/Nov/2025:06:53:27 +0100] "GET                       /projects/lariza/multipass/xiate/padme/gophcatch HTTP/1.1" 301 0 "" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36"
www.uninformativ.de 103.10.xxx.xxx  - - [22/Nov/2025:06:53:28 +0100] "GET http://uninformativ.de/projects/lariza/multipass/xiate/padme/gophcatch HTTP/1.1" 400 0 "" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36"

Some IP (from Brazil) requests some (non-existing, completely broken) URL from my webserver. But they use the hostname uninformativ.de, so they get redirected to www.uninformativ.de.

In the next step, just a second later, some other IP (from Nepal) issues an HTTP proxy request for the same URL.

Clearly, someone has no idea how HTTP redirects work. And clearly, they’re running their broken code on some kind of botnet all over the world.

⤋ Read More
lyse
lyse.isobeef.org
 (48w ago)
↳ In-reply-to » @lyse wow, 31 is truly a telling! Interesting facade on that building on 10! And that roof on 51, oh my! The golden Jesus and tower on 7 are something else too.

@bender@twtxt.net Glad you like them! :-) Those colorful roof shingles are absolutely stunning. The golden building has quite a few folds in the facade skin, from the other sides a bit more. Check out this:

Image

Luckily, there weren’t this many people around today. :-)

Don’t think this is the norm, though, most stuff here is also much more modern. There are not a whole lot of historic buildings left. And if there are, they’re not necessarily kept in good shape. But some are. So, don’t be fooled by my biased preselection of typically photographing the nicer ones.

The people photos are not for the internet. ;-) But I get your point, the reason why I ended up in that town is irrelevant and misleading, I should have introduced it differently. :-D

⤋ Read More
low-tech-magazine
feeds.twtxt.net
 (48w ago)

Winter is Coming: Build a Solar Powered Foot Stove

Image


Image: The electric foot stove that we build in this manual. Photo by Marie Verdeil.

We built an electric cube heater, powered by a 100-watt solar PV panel. During the day, the solar panel slowly heats the cube, … ⌘ Read more

⤋ Read More
Planet_Jabber_XMPP
feeds.twtxt.net
 (49w ago)

Ignite Realtime Blog: First release candidate of Smack 4.5 published
The Smack developers are happy to announce the availability the first release candidate (RC) of Smack 4.5.0.

The upcoming Smack 4.5 release contains many bug fixes and improvements. Please consider testing this release candidate in your integration stages and report back any issues you may found. The more people are actively testing release candidates, the less issues will remain in the actual release.

Smac … ⌘ Read more

⤋ Read More
lyse
lyse.isobeef.org
 (49w ago)

Thank you for https://www.uninformativ.de/blog/postings/2025-11-09/0/POSTING-en.html, @movq@www.uninformativ.de! I never configured systemd timers, but I would have gotten it wrong, too. Good to know when I eventually stumble across that in the future. I’m still using cron. Yeah, its field order sucks and I always have to look it up (because I don’t deal with that all that often). Indeed, systemd’s order sounds more reasonable.

⤋ Read More