tcas

17 ms·

121.
by tcas 13y ago
I hope this applies to technical books as well. I would love to have things like my old DSP textbook and others available with me wherever I go, but still have the hardcopy I'm used to at home.
122.
by tcas 13y ago
Just double checked. It's own occupation for 24 months, then it becomes reasonable occupation. I have a feeling that that term is something that when 24 months approach, you want a good lawyer for. Still, considering I'm paying le
123.
by tcas 13y ago
My LTD is 60% of my income, tax free (very important, always pay for any disability post-tax, if you don't your income from it is taxable), until I am able to make over 80% of my pre disability income. It provides me benefits from 6 mo
124.
by tcas 13y ago
Reading over the article, it doesn't really say anything of technical content other than "Apple has complete control and can vertically integrate, applications have different needs per thread, if you can tightly couple hardware an
125.
by tcas 13y ago
Also: peripheral muxing, interrupts in input mode, connecting a timer as PWM output to a pin (which is basically what blink is probably doing). In input mode it might also have schmitt triggering. Where's the blink getting the timer fr
126.
by tcas 13y ago
The RTL source was released under the GPLv2, GPL and hardware is a bit iffy since synthesis isn't the same as compilation, but depending on who owns the IP (in this case Oracle) they could make the case you need to open source your RTL
127.
by tcas 13y ago
YubiHSM[1] seems much more reasonable at $500, but it's still not "cheap." A COTS implementation would be interesting. Securing SSL keys would require very quick public key crypto and probably a PCI-E interface to talk to the
128.
by tcas 13y ago
Any info on using a HSM for front end SSL? I know of crypto accelerators, but nothing like using a Luna HSM to store the keys.
129.
by tcas 13y ago
That's what I thought -- but it was also down the 19th yet 2 were revoked. Probably means nothing however. I doubt that anybody with the ability to get into the system would want to get only developer certificates.
130.
by tcas 13y ago
I downloaded the CRL for developer certificates [1] and quickly looked at it using grep: grep -E "Revocation Date: Jul 17 .{8} 2013" wwdrccrl.txt | wc -l 3065 grep -E "Revocation Date: Jul 18 .{8} 2013" wwdrc
131.
by tcas 13y ago
Which wouldn't take very long. I'd be amazed if Apple wasn't using a hardware security module to store their intermediate signing keys and logging the keys generated from it. I wonder where the CRL for the dev certificates is
132.
by tcas 13y ago
Doh, I completely glossed over the readme and went straight to the code. That makes sense -- Thanks! Cool to think that that waste function can still compile with todays compilers. A quick disassembly it seems to take up 751 bytes compiled
133.
by tcas 13y ago
Looks like a very early dialect. C assumes everything is an int unless specified otherwise. You can declare parameter types after the function name. So: init(s, t) char s[]; { would be equivalent to: int init(char s[], int t) {
134.
by tcas 13y ago
Also, when using Python 3.2 it seems to be the default behavior Python 3.2.3 (default, Oct 19 2012, 20:10:41) [GCC 4.6.3] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import re
135.
by tcas 13y ago
Speed of the FPGA? FPGAs are given speed grades, but the actual design dictates the max speed. Different logic sections, depending on pipelining, size, which pins they are connected to can run at different speeds. You might have an overall
136.
by tcas 13y ago
This is in regards to the highest end fab technologies, which doesn't even include IBM who apparently have a 22nm fab. http://en.wikipedia.org/wiki/List_of_semiconductor_fabricati... With the most advanced fab technologies there's a much
137.
by tcas 14y ago
The power distribution on a board is essential to it running properly. The 5v needs to go into 3.3v and probably 1.2-1.8v as well. You need to make sure that any loads on the power net won't cause a momentary voltage drop below any componen
138.
by tcas 14y ago
You're right. I just tested it in Xilinx ISE 13.4 and it seemed to work without using any assign as both a single wire and a bus. I just recall seeing an error message at some point in the past which was about something similar.
139.
by tcas 14y ago
Didn't expect to see Verilog on the front page of HN. 1 nit pick, I think wherever you use a wire assignment you need the assign keyword. e.g wire [1:0] command = mem_out[7:6]; wire [2:0] destination_addr = mem_out[6:3]; wire [2:0]
140.
by tcas 14y ago
Looking at the source, it looks like there's only one line that calls jQuery on line 37 (and I don't think it should be using the short calling convention without a wrapper -- if you rename jQuery to '_' or something else it won't work):
141.
by tcas 14y ago
It's definitely not full multicast. Flash doesn't support multicast (if I recall correctly). They're probably doing a single stream to CDNs which then fan them out.
142.
by tcas 14y ago
I think the term you're looking for is UDP hole punching, port knocking is performing a special sequence of connections (i.e. try TCP on 8100 then UDP on 4000 then TCP on 2000) to open up an additional port (like SSH) to a certain IP. I'd b
143.
by tcas 14y ago
Does anyone know what the two horseshoe looking things are in the bottom left of the RTR8600 die? I want to say inductors, but they aren't in the shapes I'm familiar with (that being said, my VLSI knowledge is extremely rusty)
144.
by tcas 14y ago
Encoding != Encryption. Encoding is on a line level, so for example, 8b/10b is used in HDMI to prevent a DC bias on the line. The way it works is by making sure within a certain number of 8 bit inputs (I think 3), the resulting 10b outputs
145.
by tcas 14y ago
It's pretty easy using package. Here's what I just copied and pasted from my init.el (require 'package) (dolist (source '(("technomancy" . "http://repo.technomancy.us/emacs/) ("elpa" . "http://tromey.com/elpa/)))
146.
by tcas 14y ago
On modern jet engines: yes. There's a documentary / video about the manufacture of the Rolls-Royce Trent engine that mentions this fact and shows a CAD drawing / part of the manufacture process of the blades right after the combustion stage
147.
by tcas 14y ago
You shouldn't use urandom for crypto purposes. /dev/random is generated (on most platforms) as cryptographic strength numbers (usually from hardware), but can block if it runs out of data. /dev/urandom was created with the guarantee to neve
148.
by tcas 14y ago
There's an exhibit at the Boston Aquarium that is exactly this with a strobe light. It's really cool to see in person.
149.
by tcas 15y ago
I'm working on a multicycle implementation that I will be able to push to a FPGA. There's no way I'll be able to get the same cycle timing as the specs indicate however. 3 cycles for a divide is very, very generous for such a simple CPU, I'
150.
by tcas 15y ago
It's not. If you have a jailbroken iPhone there is an a mod you can download to enable a morse code keyboard. http://iditdahtext.com/iDitDahText.html At this point however I became so used to the virtual keyboard on my iPhone that I doubt

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