Taniwha

64 ms·

871.
by Taniwha 5y ago
what you can do is retrofit existing hydro dams, add more generation capacity (penstocks/turbines) and then let them fill when the sun shines/wind blows and empty when it doesn't, this is actually more efficient than pumping
872.
by Taniwha 5y ago
I flew over western China back around 2015 (Shanghai->Amsterdam) I have never seen so many windmills, hundreds of them, spread around open cast (probably coal) mines and power plants, probably sharing the same power grids
873.
by Taniwha 5y ago
Because "gravity" is such a reliable thing in a fighter jet?
874.
by Taniwha 5y ago
You could also expand a TLB miss "ld r1, (r2)" inline to: movcsr r, pte_addr, r ldd r, (r) movcsr r, tlb_data, r ld r1, (r2) With appropriate traps as described above (that's essentially how I handle
875.
by Taniwha 5y ago
(in other words it's a bit of an architectural dead end, like explicit branch delay slots if you want to grow a design past the simple risc stage)
876.
by Taniwha 5y ago
Oh yes! I am so over programs that output yellow text into a terminal with a white background and somehow expect people to be able to read the result
877.
by Taniwha 5y ago
yup, and a swap is more difficult because (depending on the design) is more likely to generate pipe bubbles. The mips also has (quite simple) magic hardware to convert the TLB miss address into a PTE address so that you can create the addre
878.
by Taniwha 5y ago
BTW one of the coolest things is the way that MIPs (and other) systems do 2 level page tables - essentially they map the page tables into their virtual address space (mapped by TLBs just like anything else) and then when they get a miss on
879.
by Taniwha 5y ago
More importantly there are no RISCV "reserved for kernel use" registers that can be trashed at any time - the mips register convention leaves 2 of the 31 registers for the kernel to use in exceptions (including TLB misses). To do
880.
by Taniwha 5y ago
nor on my system where home has largely been symbolic links to hard mountpoints for 20 years now
881.
by Taniwha 5y ago
Nope - any system that imposes on me what my 'home directory' is inherently broken
882.
by Taniwha 5y ago
Not new - as mentioned above the BART trans-bay tube was built this way back in the '70s
883.
by Taniwha 5y ago
it's not surprising of course - if only because most addition and subtraction involves small sets of disjoint memorized number facts
884.
by Taniwha 5y ago
China is roughly 1/5 of the world's population, that means that it has roughly 1/5 of the world's smart people ... for a bunch of political/historical reasons up until this generation they haven't had the same
885.
by Taniwha 5y ago
The main difference is that 'ports' live under the protocol layer (TCP/UDP/...) - TCP port 22 and UDP port 22 are not in the same address space In many way's it's a very historical thing, back when TCP/IP
886.
by Taniwha 5y ago
we've commonly used verilog (just instantiating gates) to do this - partly because for a period (ie the 90s) we didn't really trust synthesis tools to get it right and always ran gatesim before we taped out just in case. My crowni
887.
by Taniwha 5y ago
prior to international roaming bundles becoming reasonable my first task when arriving in the US was always to buy a SIM card. Unlike almost anywhere else the US (well SFO at least) did not have the usual line of SIM sellers at the exit fro
888.
by Taniwha 5y ago
It's an illness of the epithelial tissues, - ie the surfaces of your organs, especially the insides of the vascular system that pumps the blood around your body - sure there's a lot of epithelial tissues in your lungs but they are
889.
by Taniwha 5y ago
It's the lists that I'm comparing not the passengers themselves - the point is that putting someone, after conviction, on an appropriate public list that 3rd parties can use to decide whether or not to buy a house next door to a p
890.
by Taniwha 5y ago
It's much more like the public sex offender lists maintained by some states - the key word in the article was "convicted"
891.
by Taniwha 5y ago
They are asking for people CONVICTED of causing trouble on planes to be put on this list .... of course they are free to appeal their conviction
892.
by Taniwha 5y ago
But this isn't a social credit rating, they're asking that people criminally convicted through due process be put on this list, much like the lsts states maintain for people convicted of sex offences, I assume that airlines will b
893.
by Taniwha 5y ago
Really? Spotify are getting people to report on their neighbours?
894.
by Taniwha 5y ago
there's a subtle distinction here in that what exec does going in and coming out of the kernel, and what are presented to main() by the libc preamble (which is what the C standard is about) are different (though very very related) thin
895.
by Taniwha 5y ago
Remember that they're replacing seabed fibre that was damaged by the eruption - news reports this week say that they went to fish it up this week and couldn't find it (around the point of one of the breaks) - I'm guessing tha
896.
by Taniwha 5y ago
grid batteries do exactly this
897.
by Taniwha 5y ago
Sounds like Casio understand and have no problem with people using their samples. But consider it from a very basic level - pressing a key and getting a 440Hz A is a sample - you can't practically stop people from recording notes - whe
898.
by Taniwha 5y ago
The last line sums it up: “All the best hackers, all the best phreakers in the world, we don’t know who they are because they never got arrested. And they never went to prison. This is why you don’t know who the best ones in the world are.
899.
by Taniwha 5y ago
Injection moulding is not cheap, getting the high quality steel mould produced costs $1000s, a largish portion of this is just the cost of a giant block of steel (there are two moulds here)
900.
by Taniwha 5y ago
nor profit - traditionally as a rule of thumb one doubles the price to cover that, and then again to cover retail markup

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