HNHacker News
TopNewBestAskShowJobs

jercos

17 karma · joined October 13, 2014

[ my public key: https://keybase.io/jercos; my proof: https://keybase.io/jercos/sigs/EE04cluk-vx_5BoZiwtlIzD5FPqavj3a7oxtDWd-ohA ]
submissionscomments
jercos··on I got almost all of my wishes granted with RP2350
I think you highlight the exact issue rather well... fixed-point DSP instructions are awkward to use. The FPU and the double-precision hardware with its baked operations work with IEEE floats out of the box, so the programmer can be "lazy." A thousand new programmers can write something like `* 0.7` in C++ inside a tight loop without it stealing 200 instructions from the timing of the rest of the program.
jercos··on I got almost all of my wishes granted with RP2350
Downside is it occupies a CS on the QSPI controller, presumably bonding to the same pads as the QSPI pins on the package, so now you only have one external memory IC. It's a very small tradeoff all things considered, but is still technically a tiny disadvantage over highly integrated MCUs.

A potential alternative would have been a directly memory-mapped NOR flash die, but that would have required more bond wires, more dedicated pads on the die, a port on the bus, and on top of that the memory die would have been more expensive too.

An older (and often impractical) alternative is to use a single die with both flash and SoC on, in the same process. This usually forces a larger-than-desired process node to match the flash technology, making the SoC take up more space. The result requires no extra bond wires or pads, but now you're really manufacturing a flash chip with an MCU attached.

jercos··on AI solves International Math Olympiad problems at silver medal level
A significant part of the problem is that a majority of people are unaware of just how simple what they consider "intelligence" really is. You don't need actual intelligence to replace the public-facing social role of a politician, or a talking head, or a reactive-only middle manager. You just need words strung together that fit a problem.
jercos··on “Setting the record straight on Freenode” [pdf]
The disappearance of this blog post makes me think there's been a realization of some sort, perhaps that the post closely resembled accounts of "gang stalking", posted by individuals suffering from paranoid schizophrenia? I wonder if you realize in turn, how close you are to organized stalking yourself.
jercos··on [dead]
@kuschku is the developer of Quasseldroid, the pictured Android IRC client. Quasseldroid displays the screenshotted warning when joining channels on Leenode.
jercos··on The Emails Snowden Sent to First Introduce His NSA Leaks
Considering john the ripper has a plugin that can churn out 50k c/s on a gpg key with a mid-tier GPU without specific optimizations, I'd guess a dedicated team of NSA researchers could get the cost for off-the-shelf hardware down to 5000 c/s/$ (based on a $100 GPU running 50k c/s + 10x speedup from engineering effort and specific optimizations), which makes the cost of the raw GPU hardware for a 1 trillion passphrase GPU cluster a smooth $200 million for a civilian assembling in his basement.

Wanna bet the NSA gets volume discounts from nVidia/AMD?