dfox

38 ms·

421.
by dfox 4y ago
AFAIK what is sold today by Unisys are essentially preconfigured emulators running on what is otherwise normal Xeon servers.
422.
by dfox 4y ago
Another point is that due to erlang's immutability there cannot be pointers from oldgen into nursery and thus the GC does not need write barriers.
423.
by dfox 4y ago
Apparently the model is intentionally trained such that it does not “know” any kind of metadata about its training inputs. So it can deduce the name of the author if it was referenced elsewhere, but not from the paper itself.
424.
by dfox 4y ago
Today you are probably better off owning RPi-pico and just bitbanging (or in the rare case when it is needed the PPI comes in handy) the whatever bus you want to interface to in microPython.
425.
by dfox 4y ago
Another point about glibc implementation of pthread_mutex_t (and IIRC even the glibc internal lll_t that implements simple mutex as few lines of assembly involving futex(2)) is that on 32/64b platforms the layout of the structure is co
426.
by dfox 4y ago
Last week I've spent some time trying to make OpenStep run in qemu, but gave up after few hours. Apparently there is some incompatibility with how qemu emulates CD drive.
427.
by dfox 4y ago
HDMI/DVI has dedicated pixel clock pair as do the various LVDS LCD panel interfaces (and CameraLink, which is a related PHY). These interfaces are more or less “dumb” and simply serialize the display data onto three pairs with the same
428.
by dfox 4y ago
Another thing that is probably specific to Europe are elevators with retrofitted carriage doors that originally had only shaft doors. In this case the carriage doors are usually motorized, while the shaft doors are not. And in this case the
429.
by dfox 4y ago
CS6400 is not exactly the same thing as SC4000/6000, but the same design slightly improved by people at Cray's business systems division (which originally was FPS Inc.). On the other hand it is still fundamentally sun4d (ie. non-N
430.
by dfox 4y ago
It is probably of note that 6400 was not supercomputer per-se but Cray's attempt to produce bussines oriented mainframe. It was SPARC based more or less sun4d machine. As it did not exactly fit into SGI's lineup, after the SGI aqu
431.
by dfox 4y ago
What apple calls Secure Element is a separate chip that essentially is an eSIM with NFC interface (or in other words, smart card MCU with larger memory and more IO). Apple's implementation of what TrustZone is supposed to solve is call
432.
by dfox 4y ago
Newly manufactured true AT and PS/2 keyboards were rare even 20 years ago. The cheap keyboards from even that time implement only the subset of behavior of true AT keyboard required for PC with OS that leaves the hardware in PC-like st
433.
by dfox 4y ago
It is the same weird backwards I2C-ish thing as an AT keyboard, only on smaller connector ;)
434.
by dfox 4y ago
> Regardless of a grid’s size, the current flowing through it oscillates in perfect synchrony, at exactly the same frequency, throughout the whole grid I have a feeling that this is not exactly true. The grid is composed of transmission
435.
by dfox 4y ago
Ok, there is GameCube as a “vintage computer”, I'm getting old and probably I should seek some kind of product that would die my beard gray…
436.
by dfox 4y ago
OKI 3x2dn (the x in there essentially means the amount of paper trays). We had run thousands of A4 pages of cardstock through the thing printing atendee badges for our convention.
437.
by dfox 4y ago
The issue with select(2)/poll(2) (and for that matter WaitForMultipleObjects()) is that you are passing huge datastructure across userspace/kernel boundary with each call. There are various alternative platform specific implementa
438.
by dfox 4y ago
There are two things: SysV IPC and POSIX IPC, both of which have message queues. In the SysV case this feature probably made sense because it was designed at a time when BSD sockets were not yet the universaly accepted API. POSIX equivalent
439.
by dfox 4y ago
The issue is that you cannot directly pick one of the outputs using the entropy, you have to use some kind of probabilistic algorithm to traverse the state space and find valid output. When the PRNG's cycle is smaller than the output s
440.
by dfox 4y ago
I think that the point there is that most users (and especially for RPC-ish applications, which is what most of the existing XSD documents are about) do not need a formal schema but the schema is only implied by the implementation. The is
441.
by dfox 4y ago
XML 1.1 did not "fail". It is from the start designed as slight relaxation of XML syntax rules for applications that can benefit from it, which essentially means applications running platforms where the usual encoding is not deriv
442.
by dfox 4y ago
The hardware can do the segmentation model that was designed around what the OS needed, because of how it was designed, there is nothing that precludes you from doing your own additional handle/segment mechanism in user space. And well
443.
by dfox 4y ago
The MMU is limited by the fact that it is bolted onto MC68000 which nominally does not support MMU in todays sense. The article you linked says that while code was on demand swapped ("paged" in UNIX terms) by OS (which they "
444.
by dfox 4y ago
One of the main consequences of how the abstract machine in the standard is defined is that it does not imply that there is one big flat memory. It requires pointers into arrays to behave as if there was, but that is it. In other words, tak
445.
by dfox 4y ago
Let me guess: you didn't ever solo drive for work. You can certainly use a paper map while driving. When it gets too distracting to safely drive then you are lost and should stop and use the paper map more thoroughly to find out where
446.
by dfox 4y ago
That is surprisingly close to what I used as a good-enough error in fallback route estimator in our TSP/VRP solver. I came up with that essentially by curve-fitting great-circle WGS84 distances and really traveled distances between my
447.
by dfox 4y ago
You can drift with anything that has wheels, or even, tracks, somebody did that. And drifting with FWD german family car is one of my favorite activities.
448.
by dfox 4y ago
The USB issue is intentional and documented Windows feature (although so badly documented that it apparently surprises even MS insiders). IIRC it only behaves this way on Windows Server SKUs. (the idea is that when it is used as terminal se
449.
by dfox 4y ago
I spent better part of today by reading through service manuals of various test and measurement instruments. It is not that hard to assume that half of the content (eg. ridiculously detailed step by step procedures for doing obvious things)
450.
by dfox 4y ago
Randomizing the link order per release does not solve anything, for this to really work as an mitigation layer, you need to have few different randomly linked versions and randomly give these to the end users. Just randomizing the build doe

More ›