zsmi

20 ms·

151.
by zsmi 5y ago
I don't think it takes too much imagination to understand why iPhone case manufactures would be interested in what the next iPhone will be like.
152.
by zsmi 5y ago
So I tried it and it seems Google knows the quadratic equation, but it didn't know how to integrate. i.e. this worked in the Google search bar "solve 1x^2 - 2x - 3 = 0" this didn't "Integrate e^x from 0 to 1" W
153.
by zsmi 5y ago
> copy/paste the equations into Google. Just out of curiosity, why would you want to copy/paste an equation into the Google search bar? Can it solve it?
154.
by zsmi 5y ago
It's big, but not overwhelmingly so. To eye is looks like it's about 10% of the area so it jives with the quote provided by minipci1321 which claims ~10% of power. Here is an annotated die shot of Zen2 that shows it. https:&#x2
155.
by zsmi 5y ago
interesting. no news.ycombinator.com obviously.
156.
by zsmi 5y ago
perf/area comes with a huge number of caveats and it basically doesn't mean anything as given. For example, the exact same verilog, on the same process node at the same foundry, can synthesize to very different areas depending on
157.
by zsmi 5y ago
> how do you generate recursive designs in vhdl? I understand mapping a recursive algorithm to hardware, and VHDL can definitely do that [1]. (even if it is generally a bad idea) But what is a recursive hardware design? It sounds reall
158.
by zsmi 5y ago
I looked over the Silice readme yesterday, and as a seasoned HDL engineer, I didn't see anything for me but I could see it's merit as a learning tool. On HLS in general, I was a skeptic too until I read this paper. [1] I am still
159.
by zsmi 5y ago
It's for sure an interesting result but honestly, perf/freq is yesterday's spec. What matters in 2021 is perf/W and perf/$ and there is no information on either of those metrics.
160.
by zsmi 5y ago
Thanks for the pointers! I'll definitely take a look.
161.
by zsmi 5y ago
Me too. I was particularly hopeful that they would explain why they decided to not go with systemC as it seems to solve a similar problem but I couldn't find anything. https://en.wikipedia.org/wiki/SystemC
162.
by zsmi 5y ago
Great reply. Just to add on: the software environment should be controlled obviously, but the actual environmental conditions around the machine also need to be controlled for an accurate measurement. https://benchmarks.ul.com&#x
163.
by zsmi 5y ago
Core 2 Duo https://www.businessnewsdaily.com/10817-slideshow-intel-proc...
164.
by zsmi 5y ago
< I suspect that macs just aren't represented in this graph It looks like their software doesn't support macOS so it's pretty safe to say there are no Macs in the dataset. Their software does support Andriod & iOS. It
165.
by zsmi 5y ago
I didn't actually calculate anything, so there's no precise answer, but the high level answer is, all the middle men want their cut too.
166.
by zsmi 5y ago
And it's way harder to pull off than just good old fashioned, cease the center and bludgeon the opponent. Especially against a competent opponent.
167.
by zsmi 5y ago
Which means, unfortunately, that you actually have a $100 coffee maker, and not a $30 coffee maker, then.
168.
by zsmi 5y ago
Not only do we have events, they're not rare. Here is a more recent one from the same site. https://hackaday.com/2020/10/22/stm32-clones-the-good-the-ba...
169.
by zsmi 5y ago
The fundamental reason is foundries work really hard to make sure they have zero idle time, by booking time months in advance, so there wasn't a lot of slack in the system to absorb the extra demand when it hit. Add some confounding fa
170.
by zsmi 5y ago
Also, a lot of the newer low noise op amps want much better frequencies characteristics and more GBW as they're primary application is sensors. Take for example the ADA4817. It has very comparable noise characteristics but is quite a
171.
by zsmi 5y ago
> beginning of 90ties when i read about 50MHz being the fundamental impossible to surpass limit Do you remember what magazine that was in? It's hard to imagine anyone thinking 50MHz was a fundamental limit to circuit design, or comp
172.
by zsmi 5y ago
The main reason people use DRAM over other types of memory in system design is usually the price. If the higher density leads to a cost advantage, which wasn't made clear by the article, then that would be something. It tough to bea
173.
by zsmi 5y ago
https://www.anandtech.com/show/16553/qualcomm-completes-acqu... "The immediate goals for the NUVIA team will be implementing custom CPU cores into laptop-class Snapdragon SoCs running Windows" - Qualcomm
174.
by zsmi 5y ago
It's even harder than that. SVE vs NEON performance will also hugely depend on the vector length the given algorithm requires, and the stress that the instructions put on the memory subsystem. Memory hierarchy varies by product and wil
175.
by zsmi 5y ago
I thought the same thing, how could there be no PFC? The UC3842B is not that old. [1] But I guess time has flown... The PFC requirement was part of Energy Star 5.0 which was 2009. [2] [1] https://www.ti.com/lit/ds&#x2
176.
by zsmi 5y ago
> become worse and worse as damage accumulates. And that there's no word for such a property I think the name for that property is "age". :) Do you have an example of something that gets better in the presence of accumulat
177.
by zsmi 5y ago
That's a good solution and it probably wouldn't be too expensive, relative to a Xeon. This also demonstrates where it really hurts is when you want to do something low cost, and very low power, with a small die. And that's w
178.
by zsmi 5y ago
It's actually a hard question to answer but first one needs to specify the width of the integer and if it is signed or not. Just one semi-random example, dividing two 1b unsigned integers is not going to need the same hardware as divid
179.
by zsmi 5y ago
How the architecture handles the memory hierarchy is hugely important, but your example of calling conventions is a good one too. Keep in mind what calling conversions are: "Calling conventions act as a contract between subroutines at
180.
by zsmi 5y ago
It's actually not that complicated. Here is a state machine coded in C that does it for the base set. https://stackoverflow.com/questions/23788236/get-size-of-ass... The same technique could be extended to c

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