dvdkhlng

10 ms·

31.
by dvdkhlng 5y ago
Well, I recently found the Cortex-M SoCs to be a blessing in that regard: no MMU, no need to run a fully fledged operating system, but still with LwIP, FreeRTOS&friends, they can handle surprisingly complex software tasks, while the la
32.
by dvdkhlng 5y ago
Yes, looks like they added a few bits to the PSR register to capture the internal state of LDM/STM . Like a small version of x86's CS register.
33.
by dvdkhlng 5y ago
In fact the Cell CPU [1] had a DMA facility accessible from the SPU cores by non-privileged software [2]. This worked cleanly, as all DMA operations were subject to normal virtual memory paging rules. But then the SPU did not have direct R
34.
by dvdkhlng 5y ago
Note that in ARM-based controllers, LDM/STM also have a non-negligible impact on interrupt latency. These are defined in a way that they cannot be interrupted mid-instruction, so worst-case interrupt latency is higher that would be ex
35.
by dvdkhlng 5y ago
I think copyright is inherited by the heirs (in most cases relatives of the deceased) and carries on quite a long time after death. So the relatives may actually sue you, and any discussion WRT relicensing would have to be addressed to the
36.
by dvdkhlng 5y ago
IMO it's not "GPL virality" that is at the root of the issue here. The authors' decision to license theis works this way causes the problem. You can still ask both libraries' authors for relicensing their work in
37.
by dvdkhlng 5y ago
If you travel close to C, those photons will be blue-shifted into (depending on velocity) very energetic photons (x-ray, gamma spectrum) that may be rather difficult to shield against.
38.
by dvdkhlng 5y ago
Yes, the global cost function of standard of living may likely have other comparable optimimums at other points in parameter-space (which may be less damaging to the planet). The question is whether we can move around in parameter-space to
39.
by dvdkhlng 5y ago
In germany (and I'd assume standardized throughout europe) COVID vaccination digital certificate is just that: a digitally signed certificate (encoding your name+vaccination meta-info) passed around via QR code. While you can use an A
40.
by dvdkhlng 5y ago
I'm regularly using chipTAN with a stand-alone TAN generator (similar to [1], based on optical flicker-code) for a DKB account. No problems so far. Deutsche bank uses PhotoTAN, which supports hardware TAN generators [2]. Some banks u
41.
by dvdkhlng 5y ago
AFAICS, no, they don't. If you don't install the bank's app, you are usually offered to use a stand-alone hardware TAN generator. I currently have 4 TAN generators for different bank accounts (because everybody seeems to us
42.
by dvdkhlng 5y ago
Where I live, tankless heaters are pretty wide-spread. They connect to 3-phase power supply, heating at a variable power level up to 24 kW [1]. They need almost no maintenance, nobody I know has ever descaled one. I think the better unit
43.
by dvdkhlng 5y ago
I cannot share this optimism. I wonder how a society would look like, where young people are the absolute minority and their demands and ideas drowned by the number and power of those who have lived for centuries, amassing fortunes, having
44.
by dvdkhlng 5y ago
I think what you're trying to define by example may just be Normalization of Deviance [1]. [1] https://en.wikipedia.org/wiki/Normalization_of_deviance
45.
by dvdkhlng 5y ago
I think, in case you delete all your cookies, you will get a new cookie popup the next time you visit a web-site. As I usually configure browsers to not keep cookies between browser-restarts, I'm quite used to being asked anew about c
46.
by dvdkhlng 6y ago
There may be some grandfathering of old accounts: accounts that have email notification enabled, can still access the Packstation using mTAN transmitted by email. However, once the email notification is disabled, there seems to be no way t
47.
by dvdkhlng 6y ago
You can get this sort of satisfaction for much less money. Try a Volla phone [1] or a KaiOS based phone [2]. That's always funny when some services assume that just having an iOS or Android App (and no equivalent web-page) is enough
48.
by dvdkhlng 6y ago
It's also possible without any energy transmission using lasers etc. as long as you are in some non-flat spacetime (i.e. there is some mass in your vincinity). It's called "swimming in spacetime" [1] [edit] You can find
49.
by dvdkhlng 6y ago
Note how this problem of "sufficient complexity" is an asymmetric problem between code author and compiler. A rather simple transformation implemented by the author to make the code constant-time may require NP-hard effort for th
50.
by dvdkhlng 6y ago
I just started wondering, if things were any better if security libraries were written in higher level languages, depending on on a huge run-time support system that is written in what is essentially a portable assembly language, doing si
51.
by dvdkhlng 6y ago
I think we have already "lost" similar amounts of knowledge when the mechanical typewriters went away. And the mechanical calculators (and mechanical clocks?). Or have you recently looked through a book on vacuum tube circuit des
52.
by dvdkhlng 6y ago
Unfortunately, changing weight of the helicopter changes also changes inertia and the moment of inertia [1]. On mars, only the gravitational force changes, while inertia stays the same. That will be somewhat more tricky (or impossible) to
53.
by dvdkhlng 6y ago
Also a minor hardware re-design may change mic switch behaviour in the future without that change being noticeable to the buyer. You'd really need regular tear-downs of a sufficient sample-size of devices to make sure that you can act
54.
by dvdkhlng 6y ago
I think this approach quickly enters the realm of transcomputational problems [1], which, given the limits of this universe is equivalent to "undecidable" for all practical considerations. [1] https://en.wikipedia.org&#
55.
by dvdkhlng 6y ago
You mean you're using online services to provide you with trusted timestamp? [1]. But you need to consider how a trusted timestamp merely proves that some photo was definitely taking at or before the attested time. It does not prove
56.
by dvdkhlng 6y ago
But everybody can give his/her smartphone to a 3rd party to carry around, right? Your Google location history only proves where your phone was, it doen't prove where you were.
57.
by dvdkhlng 6y ago
Also with the advent of deep fakes [1] I'm not so sure that this is going to be a winning strategy for long. [1] https://en.wikipedia.org/wiki/Deepfake
58.
by dvdkhlng 6y ago
I think you are too optimistic WRT how forensic "science" is generally applied in the US [1] (one prominent example is e.g. [2]). Now imagine this is you standing in front of a scientifically untrained jury trying to argue again
59.
by dvdkhlng 6y ago
I remember the name Philip Glass only due to watching the movie "Hamburger Hill", which started with an opening theme [1] that seemed so unusual that I looked up the composer on wikipdia. [1] https://youtu.be/YeD4b
60.
by dvdkhlng 6y ago
The pessimistic side of me would like to point out that in this kind of future, criminals will know how to leave sufficient fake DNA at the crime scene, and random people will suddenly be thrown in jail, because some criminal deliberately u

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