abelsson

7 ms·

1.
by abelsson 2y ago
It’s also running on a microcontroller with a few hundred kb of memory so even win16 or macOS classic would be a bit heavy.
2.
by abelsson 2y ago
Unnecessary though productivity outpacing demand as far as I've understood it. In Marxism what they call "full communism" is envisioned to be the "final state of humanity" where productivity is described to be highe
3.
by abelsson 2y ago
Economic systems of the 1800s doesn't really make sense in a space based, post scarcity society - economics is after all, the allocation of scarce resources. But I would argue that the ultimate aim of the socialism as envisioned by Mar
4.
by abelsson 3y ago
Tesla is free to not sign a CBA, and union members are free to not serve Tesla. Swedish labor market is very free (as in unencumbered by laws and government intervention).
5.
by abelsson 3y ago
Of course not. Having the ability to add or modify root CAs in browsers doesn’t imply a requirement to sign every webpage yourself either.
6.
by abelsson 3y ago
That’s fine, assuming we pass laws mandating that signing keys can be controlled by end users. Otherwise we end up where no-one really owns their devices any more, every device would be merely temporarily rented.
7.
by abelsson 7y ago
As someone who's two new arrivals recently turned two; it's by far the hardest thing I've done. I envy those who have one at a time. Having a startup fail around me was a piece of cake. Singlehandedly building a house (not co
8.
by abelsson 8y ago
> Rephrased, Spotify seems to think it has a /right/ to run its software on Apple platforms in an identical fashion to Apple's first-party software. Does that mean Apple has an obligation to provide an equivalent technical
9.
by abelsson 8y ago
Walking/Biking also allows me to instantly change my plans, even more so than driving does (try turning around instantly in a car). What do you mean "low large countries work"? The absolute size of a country is irrelevant (wh
10.
by abelsson 8y ago
Having spent quite a bit of time in the US, I've noticed that getting somewhere there takes about the same amount time as home (which happens to be Sweden, hence me clicking the link). As an anecdotal example, some common times for me
11.
by abelsson 9y ago
True, many are indeed using ARM (in house designs are also more popular than you might think in deeply embedded SoCs), but a lot of companies would love to be able to throw out ARM due to licensing cost & hassle, or at least have a viab
12.
by abelsson 9y ago
There's gazillions of embedded processor cores in every device you own. Your SSD, network card, phone, motherboard, router, TV, modem, car, fridge, you name it all have multiple processor cores running some piece of firmware you never
13.
by abelsson 10y ago
For reference, gas contains about 33kWh of energy per gallon, and if we assume you pump 20 gallons in 5 minutes when you fill up your car you have an effective energy transfer rate of about 8 MW at your gas pump. Even if we give an electric
14.
by abelsson 10y ago
A while ago, I spent a fair amount of time evaluating JIT frameworks including DynASM. The one I ended up using is something called Xbyak ( https://github.com/herumi/xbyak ) which I think is a bit of a hidden gem. Unlike
15.
by abelsson 11y ago
If you think the cost of the instructions to express copying is the main problem I'd call your mental model flawed. That is not the thing to worry about, when moving data the issued instructions matters very little. No, the thing to wo
16.
by abelsson 12y ago
German industry may indeed be in better shape, but that is inspite of German energy policies, not because of them. What you're really arguing for here is a poorer, less prosperous, Germany because of anti-nuclear-ideology. There's
17.
by abelsson 12y ago
No, the correct answer is zero. The impact of Fukushima on someone living on the west cost of the US is negligible; as near to zero as makes no difference. There are many, many, many other things you don't worry about which has a much
18.
by abelsson 12y ago
The number of non-acute deaths from Chernobyl is highly uncertain and difficult to estimate, even 30 years later. The range of estimate seem to more reflect the author's opinion on nuclear power than scientific fact. WHO estimated 4000
19.
by abelsson 12y ago
The problem is that Germany, with its focus on wind and solar, is paying twice as much as for electricity compared to France - also a country with higher density in the middle of Europe - while also emitting more carbon dioxide per capita (
20.
by abelsson 12y ago
I'm not quite sure what you mean your first question, but I think heat pumps using air, ground or water as heat reservoirs would qualify. They are in common household use at least where I am located, and have a input-power-to-heat effi
21.
by abelsson 12y ago
Heating can be more than 100% efficient. Before you go "what, lol, no" - let me clarify. Obviously it can't be even 100% thermodynamically efficient, but a heat pump for example can generate 3-4 kW of heat from 1 kW of power.
22.
by abelsson 12y ago
No, the plan is to wind down the foundation within 20 years of his and Melinda's deaths. See http://en.wikipedia.org/wiki/Bill_%26_Melinda_Gates_Foundati...
23.
by abelsson 12y ago
Location: Scandinavia, willing to relocate to English speaking countries. Full time, no remote unless you have something exceptionally interesting. Stack: C, C++, Python, Assembly, JIT compilation, Optimization, Drivers, CPU architecture, E
24.
by abelsson 13y ago
Hah, I was just about to post more or less exactly the same code. :) It's funny, had the author tweaked the problem just slightly to try make C++ look good by saying that the program should output sorted words instead of lines, you cou
25.
by abelsson 13y ago
As an intermediate step, before starting with the SSE intrinsics I rewrote the code in a form that should have been reasonably suitable for an autovectorizer (an inner loop over a fixed number of elements - I imagine it probably looked fair
26.
by abelsson 13y ago
No, it doesn't. I tried to make that point too, but perhaps it didn't come across very clearly. For these kind of tight inner loops a language only ever gets in the way, the difference is really only how difficult it is to get rid
27.
by abelsson 13y ago
I'll grant you that - AVX is pretty uncommon. I originally wrote it with SSE2 (there's a working version in the next to last commit on the github repo), but rewrote it using AVX because.. well, I hadn't used it before. But I
28.
by abelsson 13y ago
It feels like a very modern language overall, I particularly like the memory management ideas. It's refreshing to see something which tries to find a middle ground between error prone manual handling and unpredictable GC. Now someone j
29.
On comparing languages, C++ and Go(blog.grok.se)
126 points by abelsson 13y ago|127 comments
30.
by abelsson 13y ago
Linköping, Sweden - Software & HW engineers (Local, relocation offered) Mediatek Sweden is developing a family of configurable baseband signal processors, with a full toolchain, simulator and RTL implementation. We're looking for P

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