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guenthert commented on SectorC: A C Compiler in 512 bytes (2023)   xorvoid.com/sectorc.html... · Posted by u/valyala
mati365 · 21 hours ago
Oh, it looks like my X86-16 boot sector C compiler that I made recently [1]. Writing boot sector games has a nostalgic magic to it, when programming was actually fun and showed off your skills. It's a shame that the AI era has terribly devalued these projects.

[1] https://github.com/Mati365/ts-c-compiler

guenthert · 6 hours ago
Er, what? The article describes a compiler for a not-quite-C programming language which fits entirely in 512B. Your project, if I see this correctly, can optionally produce code meant to execute as boot sector.

Both interesting projects, but other than the words 'boot sector', 'C' and 'compiler', I don't see a similarity.

guenthert commented on Floppinux – An Embedded Linux on a Single Floppy, 2025 Edition   krzysztofjankowski.com/fl... · Posted by u/GalaxySnail
6LLvveMx2koXfwn · 6 days ago
Did I misremember downloading Slackware to 12 floppies in 1997?
guenthert · 4 days ago
Iirc (it's been a while), Interactive Unix (full?) install required some 40 (forty!) 5 1/4" floppies (I believe 1.2MiB) anno 1992 or so. Linux (SLS) install was (a little later) so much smaller, even with X11 and TeX, as it had shared libraries (somewhat new in the *nix world then).

Ah, good times ;-)

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guenthert commented on LED lighting undermines visual performance unless supplemented by wider spectra   nature.com/articles/s4159... · Posted by u/bookofjoe
accidentallfact · 13 days ago
I don't think that this is the reason.

Yes, there is something obviously wrong with most LED lights, but it isn't too much of short wavelength light, but on the contrary. It's the near absence of cyan light in most LEDs. Our eyes are by far the most sensitive to it, the majority of receptors in the eye are sensitive to it, and we may focus primarily on it (focus differs for different wavelengths). This is how you get the feeling of something being wrong with your vision as you for example walk into a mall, and so on.

If anything, higher temperature lights seem to make it better, not worse, but the problem will persist as long as the cyan hole stays there.

guenthert · 13 days ago
Sensitivity peak for humans is in cyan (~510nm) only for low-light conditions (night vision / rod cells). In daylight (cone cells) it's green-yellow (555nm). https://www.giangrandi.ch/optics/eye/eye.shtml
guenthert commented on Doing gigabit Ethernet over my British phone wires   thehftguy.com/2026/01/22/... · Posted by u/user5994461
Latty · 15 days ago
My experience with powerline is they can work well for low activity, but they all overheat if you actually use them continuously, and the advertised speeds are extremely misleading as they are before error correction (which is very significant) and for the whole network.

My guess is that the nature of them being in a power plug means that they struggle to isolate things from the mains for safety in a way that doesn't also make them hotboxes.

guenthert · 15 days ago
I didn't notice overheating, but there are a quite a few different products on the market.

The modest speed (~50MBps at my place) was then ok-ish, but the (variable!) latency of a couple of ms was annoying (it tended to break pacemaker/corosync cluster communication). And every once in a blue moon they stopped working altogether and needed to be un-plugged.

Worst, for someone interested in analogue electronics, they emit (of course) a huge amount of electrical noise into the power lines.

guenthert commented on 200 MB RAM FreeBSD desktop   vermaden.wordpress.com/20... · Posted by u/vermaden
badc0ffee · 18 days ago
I remember booting up Debian into an X11 session on a laptop with only 8 MB of RAM.

(This would have been circa 2000, and I think I had to try a few different distros before finding one that worked. Also I don't think I did anything with it beyond Xterm and Xeyes.)

guenthert · 18 days ago
That would have been then already some kind of anachronism. 8MiB RAM was workable (but only barely so with X11) in the early nineties. Late nineties 64MiB or more were common.
guenthert commented on Wine 11.0   gitlab.winehq.org/wine/wi... · Posted by u/zdw
unsupp0rted · 20 days ago
Every few years I try Wine for whatever app or game and it spits out some obscure error messages I have to Google, and the suggestion is to recompile this or that, after downloading some DLLs from a random Russian honeypot on Yandex.

Is it better now?

guenthert · 20 days ago
Not all functionality is perfectly replicated, so the user experience depends on the application being used.

I use it semi-regularly for quite a number of years and (consequently) various versions of Wine to run (a near current version of) LTspice. That works perfectly as far as I can tell, but it is my understanding that the maintainer of LTspice puts in some effort to assure compatibility with the then current version of Wine.

guenthert commented on Erdos 281 solved with ChatGPT 5.2 Pro   twitter.com/neelsomani/st... · Posted by u/nl
mikaraento · 21 days ago
That might be somewhat ungenerous unless you have more detail to provide.

I know that at least some LLM products explicitly check output for similarity to training data to prevent direct reproduction.

guenthert · 21 days ago
Should they though? If the answer to a question^Wprompt happens to be in the training set, wouldn't it be disingenuous to not provide that?

u/guenthert

KarmaCake day1578August 12, 2015View Original