codehero

7 ms·

61.
by codehero 12y ago
In Myth 4 SSDs, Thompson claims that: "there's a limited number of times you can READ and ERASE a block" (emphasis mine) My understanding is that ERASE cycles are what's limited; reading and writing are not destructive t
62.
LibreDWG drama: the end or the new beginning? (2012)(libregraphicsworld.org)
23 points by codehero 12y ago|20 comments
63.
by codehero 12y ago
So let's look at this from an inventor's perspective: Feeling exuberant, I know Quirky will vet and accept my idea. According 109 of 823 accepted projects are on sale, so I have a 13.24% of getting my first dollar. Royalties are p
64.
by codehero 12y ago
I don't understand where the 2072 mile figure came from. The Shell competition was only 16km. And why describe fuel economy in miles per liter?
65.
by codehero 12y ago
They could inspire creativity by letting me upload photos from my desktop...
66.
by codehero 12y ago
Some questions: Tindie Fundraisers just seem to have disappeared; what happened to them? How do you regulate the marketplace competition? Do you let overseas companies copy a maker's product and sell it for a lower price?
67.
Open source delta 3D robot with magnetic quick release end effectors(indiegogo.com)
2 points by codehero 12y ago|0 comments
68.
by codehero 12y ago
Doesn't work when Vimium extension is enabled...though this project makes we want to disable it.
69.
by codehero 12y ago
For I client I designed a UART<->Microphone adapter. It supports bidirectional communication at ~1kbps, almost 0% error rate at full volume (~15% error rate at half) and has a terribly unoptimized analog interface. I didn't reall
70.
by codehero 13y ago
I couldn't tell, does the Numbers support include NaN?
71.
by codehero 13y ago
Network routing is directed flow; water flow is undirected, so backflow is possible. The dangers of analogy....
72.
by codehero 13y ago
I'd like to see it do CSG before I download it.
73.
by codehero 13y ago
This is why you prepend the comma before every succeeding item in a list or map.
74.
by codehero 13y ago
Would online students have access to paywalled research papers?
75.
by codehero 13y ago
Since the days of the EspressoPC I have always been fascinated by small scale computers. With so many choices in small linux systems (Gumstix anyone?) I am not enchanted with seeing the Arduino name slapped on a Linux board. I was appalled
76.
by codehero 13y ago
I've definitely been bitten by this kind of bug before, but I did not come to this author's conclusion. What I learned is that each step of a calculation has lower and upper bounds, regardless of int type. You always make sure you
77.
Here be dragons: advances in problems you didn’t even know you had(serpentine.com)
2 points by codehero 13y ago|0 comments
78.
by codehero 13y ago
Philip Katz of PKZip fame (may he RIP)
79.
by codehero 13y ago
I really like it and its entirely analog nature is refreshing. It makes sense to set aside something like a raspberry pi for it (I would never use a PC, especially on update tuesdays. And I would not want to set my PC audio to full blast so
80.
by codehero 13y ago
My point is that people expect malloc to optimize more than it really should. I don't have the time to explain anything more to you. Look at how malloc uses the brk() function and read up on TLBs. That should get you some depth.
81.
by codehero 13y ago
Jsmn is a fresh (somewhat copout) approach, but unless you know the size of your JSON a priori (ie memory mapped file), I would hard call it beautiful or without global side effects. If you're into C++, take a look at benejson's p
82.
by codehero 13y ago
Help me get on the same wavelength as you. Maybe you can tell me what is "sporadic" about Tny's malloc usage? I don't understand your second question at all. Optimizing the usage of malloc and free is no different than o
83.
by codehero 13y ago
I think it's interesting and I get that it's a simple data parser, but if I am using C I prefer performance over simplicity. The Tny structs and their string values are individually malloc'ed, worsening the performance, so al
84.
by codehero 13y ago
Thanks for the response. Hearing a real world example of a type promotion trap was illuminating. I pick on printf in particular because most seasoned programmers consider copying and pasting code a smell, but is accepted for printf and frie
85.
by codehero 13y ago
Most of these are all just implementation or platform divergence issues, though what was the FPU emulator issue? That actually seems fundamental to formatted output strategies.
86.
by codehero 13y ago
I don't know if that's the reason, but there's no reason formatted output HAS to: 1) block at the caller, ever 2) have its data parameters pushed onto the stack 3) print all or nothing to a single buffer 4) identify the data
87.
by codehero 13y ago
I know the scope of your project isn't to break ground on formatted output. I've seen the same thing you've done in fastcgi. and in nginx. A pattern that recurs because printf is a clunky interface. And of course each copy ha
88.
by codehero 13y ago
Why is it every framework handling run loops or communication makes its own implementation of printf? While printf is ubiquitous, I'd hardly call its semantics or syntax perfect. Why does everyone have to copy the same mistakes over an
89.
by codehero 13y ago
The g2231 etc certainly are not specced to work from high frequency crystals or oscillators, but in actual use it works: http://forum.43oh.com/topic/594-use-a-12mhz-external-square-...
90.
by codehero 13y ago
This has 8 more pins than the LaunchPad and is a bit cheaper: https://analog10.com/store/BOB-G2553-28.html You can drive motors from those pins while keeping your P1 free for comm peripherals.

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