dmitrygr

15 ms·

511.
by dmitrygr 8mo ago
https://randomaugustine.medium.com/on-apple-exclaves-d683a2c... https://9to5mac.com/2024/06/03/m4-ipad-pro-security-feature-...
512.
by dmitrygr 8mo ago
> Because the Neo’s only camera-in-use indicator is in the menu bar, that seems obviously possible to circumvent via software. Not as obvious as the author implies. Apple has some docs out, IIRC, explaining how it is implemented. Worth a
513.
by dmitrygr 8mo ago
ANDI is not 1-extended (though that would be nice) it is 0-extended. MIPS only has 2 extension modes for immediates - sign extended and zero-extended. all logical ops are 0-extended, all arith ops are sign extended.
514.
by dmitrygr 8mo ago
IF you care to read the article, they indeed do not blame the architecture but the available silicon implementations.
515.
by dmitrygr 8mo ago
Entirely disagreed. In a simple step by step emulator it can be as much as 30% of the time spent. In a jit indeed it is less of an effect.
516.
by dmitrygr 8mo ago
MIPS (the arch of which RISCV is mostly a copy) is even easier to emulate, unlike RV it does not scatter immediate bits al over the instruction word, making it easier for an emulator to get immediates. If you need emulated perf, MIPS is the
517.
by dmitrygr 8mo ago
You know, I'm something of a raccoon myself
518.
by dmitrygr 8mo ago
And do what, what buggy whip unions did?
519.
by dmitrygr 8mo ago
I think it is insane to name that as a benchmark with no details. That phrase could mean anything and nothing and everything.
520.
by dmitrygr 8mo ago
> and general social well-being. Your question was sane and sounded like it was genuine until that. That is an invisible goalpost that can be moved by the question-asker at will to negate any disliked answer, to allow one to create an il
521.
by dmitrygr 8mo ago
Oh, FFS, who asked for this? Why not fix perf issues, or autofill randomly breaking requiring a restart?
522.
by dmitrygr 8mo ago
aarch64 is not an extension. It is a whole new architecture having NOTHING in common with ARMv7 and below. Nothing!
523.
by dmitrygr 8mo ago
Graviton, Apple M-series... That variable-length encoding and strongly ordered memory model will do x86 in sooner and not later.
524.
by dmitrygr 8mo ago
> Subaru Outback It had more margin and manufacturer squeezed it to keep prices. If you want to see real prices look at cheapest cars. Those are no-margin. And that is why their prices are up. This is not “an excuse”. I literally was in
525.
by dmitrygr 8mo ago
I like this, but a bigger problem exists that needs to be solved. I suggest: any business that accepts money for services MUST have a way to reach a human & any email from them that is not purely informational may not be sent from a no-
526.
by dmitrygr 8mo ago
And that may be true, but the point remains: it is illegal to make cheap cars due to regulations requiring a lot of features that cost a lot of money to implement.
527.
by dmitrygr 8mo ago
it is all the new cameras and processing required by things like FMVSS127 and its predecessors
528.
by dmitrygr 8mo ago
> Many new models come with parking sensors, forward-looking radar and cameras, and blind-spot monitoring. > While those devices make driving safer, they also raise the cost of repairing cars. I love the passive tense, as if all those
529.
by dmitrygr 8mo ago
I disagree. This feature protects people who do not know better. Those who do, instead of raising their blood pressure by writing rants, can simply disable this feature.
530.
by dmitrygr 8mo ago
> for functions where it's deemed too costly to inline, but which aren't externally visible in LTO mode, gcc does
531.
by dmitrygr 8mo ago
The hardware support was there for a while. Given that this runs macOS, i would guess (no insider knowledge) that it would work just fine and not be disabled like it is in iOS (by policy, not by technical reasons)
532.
by dmitrygr 8mo ago
Vote for politicians who'll lower VAT from 25% (!!!) to the same about as we pay in sales tax (5-9% depending on locale, 0% in some states) -- see lower prices :)
533.
by dmitrygr 8mo ago
Mobile devices, to give you good battery life, operate in a “race to sleep” mode. Good performance is necessary not to compute a lot of things, but to finish your computation quickly and shut down the power hungry processors. So do not worr
534.
by dmitrygr 8mo ago
and you are 100% sure none of this will change suddenly, and are willing to bet you have the money to defend yourself in case you are sued wrongly, perhaps, but still need to provide a lawyer to defend yourself, on your own dime? ballsy mov
535.
by dmitrygr 8mo ago
"It probably does not apply to you" and "Laws are usually applied as intended" and "You'll probably be ok" is what i keep hearing. None of that addresses "if you get unlucky and some prosecutor decide
536.
by dmitrygr 8mo ago
Windows UI customization used to be a thing Stardock did with products like "WindowBlinds". Googling around, it seems it still exists and even supports windows 11...wow
537.
by dmitrygr 8mo ago
this "divide" thing will add latency which you really do not want to add to L1 hits
538.
by dmitrygr 8mo ago
that is ... not at all how that works. RAM is a separate chip, that is placed on top of the substrate that holds the main dies. It is bought from normal ram manufacturers like micron. it is not "embedded in the chip" by any possib
539.
by dmitrygr 8mo ago
> Sifive is moving fast as far as I know) worked with their cores in $pastJob. I'd say their main products are flowery promises and long errata sheets.
540.
by dmitrygr 8mo ago
that will break if any page is mapped at two VAs, you'll end up with conflicting cache lines for the same page...

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