phire

5 ms·

61.
by phire 2mo ago
My understanding is that after Compaq sold the Alpha IP to intel, and quite a lot of the DNA ended up in Nehalem and Sandy Bridge.
62.
by phire 2mo ago
I'm not even sure inspection and quality control is done at the fab. At least with logic ICs, they either testing/QC/bining as part of packaging (before dicing), or even have factories that specialise in just testing/QC&
63.
by phire 2mo ago
Yeah, and you can change the defaults of UBO lite to always have full access to every site.
64.
by phire 2mo ago
There is a dynamic API too that allows extensions to modify the blocklist at runtime. I’ve been using UBlock Origin Lite on my iPhone for a while, and that works great, keeping itself updated from EasyList and allowing for custom rules. In
65.
by phire 2mo ago
Not really... backdoor just means something that can bypass the main security. It's just that publicly known backdoors are of very limited usefulness, because people go out of their way to remove, disable, or avoid them. Or worse, use
66.
by phire 2mo ago
"It's documented in the datasheet" is such a weak excuse for a backdoor. Documenting a backdoor doesn't make it not a backdoor, just means it's not a hidden backdoor. The fact that a number of machines shipped with
67.
by phire 2mo ago
The repo page says exactly why these long running instructions were researched. A very long-running instruction can be used to break SMI: https://github.com/xoreaxeaxeax/smiiiiiiiiiiiiiiii
68.
by phire 2mo ago
It's actually benchmarking 1000 repetitions of the RDTSC instruction running in parallel. My guess... On Skylake, multiple in-flight RDTSC instructions slow each other down for some reason? Possibly because it's attempting to prov
69.
by phire 2mo ago
As specified by the spec, it arguably increments RIP by one. The actual typical hardware implementation just fetches the next 16-32 bytes from icache, shifts it to the correct alignment, and slams it into a bunch of parallel decoders which
70.
by phire 2mo ago
Even if they need to replace every single lithography machine, there are a lot of other machines that probably don't need to be replaced for any given upgrade. Like everything related to it being a clean room; All the logistics robots
71.
by phire 2mo ago
There is some overlap. The last DDR4 fabs were typically on a 16nm process, the first DDR5 fabs were also on a 16nm process. There shouldn't be much issue converting those 16nm DDR4 fabs to DDR5, it's really just an issue of swapp
72.
by phire 2mo ago
> Before dynamic branch prediction... static branch prediction had been used for decades. I'm not sure that's true. At least not the "predict backwards branches are taken" part. Many RISC cpus did kind of have &quot
73.
by phire 2mo ago
I'm more thinking about how MIPS were quite late to branch predictors. They were shipping the high-performance R4000 and R4400 with 8 stage pipelines and no branch predictors. They could have really done with a branch predictor, each b
74.
by phire 2mo ago
I think the Pentium is more or less the first microprocessor with branch prediction. Certainly the most mainstream. PowerPC 601 arrived at more or less the same time, and the Alpha 21064 was a year earlier. There were a few minicomputers an
75.
by phire 2mo ago
I think they are claiming it was the first merger of a multiple cities and a county. Rather than something that was originally created a merged county/city (like San Francisco) or a merger where the city/county boundaries were alr
76.
by phire 2mo ago
Yeah... I was worried that might be true.
77.
by phire 2mo ago
> I think "going inter" just gives you a third "dimension" along which you can still only travel one way Essentially intra prediction gives you two half dimensions. The temporal aspect of inter prediction gives you
78.
by phire 2mo ago
If you were limited to just a single frame of itra blocks, then yes. This would be an example of logic without storage. Also quite limiting as wires could never cross. But I was kinda jumping ahead and assuming VP8 allows you to mix and mat
79.
by phire 2mo ago
I think you also need some form of intermediate storage to be Turing complete. Not that this example doesn't have intermediate storage... But I suspect you could create or discover a mechanism that is expressive enough to implement any
80.
by phire 2mo ago
Really depends on what a hello world is meant to be a simplification of. If hello world is meant to be a simplification of printing large amounts of text to a buffered standard out? Then yes, it probably should be checking errors. If hello
81.
by phire 2mo ago
And the “electronic” part is important. The Z3 predates in by 2 years and was a programmable digital computer, except it used electromechanical relays. The Z3 is arguably more programmable than colossus and it was proven to be Turing comple
82.
by phire 2mo ago
I suspect it's possible to build an active radar without exceeding the limits of the ISM bands. Actually, I know it's possible, that's how the automotive radars (used for adaptive cruise control) work. The real question is if
83.
by phire 2mo ago
Power consumption seems a bit high. Other than that, looks awesome. I checked, the 2nd gen iPod mini can get 18 hours of listening on a 400mAh battery, with a spinning HDD. This is getting 20+ hours listening with a 2200mAh battery and soli
84.
by phire 2mo ago
There isn't really a restriction that a downstream device will only have one mac address. It might be another switch. Even if it's not; VM/container networking is often implemented by bridging the host's NIC to a virtual
85.
by phire 2mo ago
You already need to add a decent quality DAC/Amp, might as well add a SD card slot at the same time. On top of the lower power consumption, another advantage of the pico is that you can actually buy the raw RP2040 or RP2350 chips (for
86.
by phire 2mo ago
Or even the Pi Pico. You really don't need that much processing power to decode mp3s and FLACs.
87.
by phire 2mo ago
There are so many 3rd party parts available for iPods. Pry it open, replace the battery, swap the HDD for something like the iFlash.
88.
by phire 2mo ago
I guess there just is no room in the current market for a mid-ranged product. The segment is being squeezed on at least five sides (probably more): - Cheap low-end no-name players; - Audiophile products like the Sony walkman stuff; - People
89.
by phire 2mo ago
The first 386 PC didn't arrive until September 1986. It wasn't until like 1991 that sales of 386/486 PCs went above 50%. Most PCs in the wild were still 8088s or 286es at best. DOS just couldn't really take advantage of
90.
by phire 2mo ago
True. But most C code out there assumes malloc will always return something that is at least aligned to sizeof(void *), it's very rare to see aligned_alloc. So how is your alloc allocation going to know when it can get away with a smal

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