becurious

9 ms·

61.
by becurious 4y ago
Why do the 255-bitmask? You’re going to look it up in a table anyway. I’m pretty sure I’ve implemented the compact operation before in AVX-256 and not needed a massive table and I don’t think you need a gather either but that was at a previ
62.
by becurious 4y ago
You also have to remember that the WinSock API had to be implemented on cooperatively multitasked Windows 3.x. So some of the weirdness is due to that - async socket IO had to work in that environment. There’s some story I heard at Build or
63.
by becurious 4y ago
You could change the stack pointer to the top of the area of memory you wanted to fill and then use PUSH to fill at I think 11 clock cycles per two bytes. It was faster than unrolled LDI or LD (HL),A followed by INC HL. It would be filling
64.
by becurious 4y ago
Worked with a transputer based embedded system for a life sciences instrument. Checking if code was running was fun. You’d send the messages for poke and peek and check if the poke worked. If it did the program wasn’t loaded so you would se
65.
by becurious 4y ago
Ammonia is currently produced from methane.
66.
by becurious 5y ago
That and ED B0 are burned in my mind forever.
67.
by becurious 5y ago
My original AirPods started to not charge reliably. It was corrosion from the sweat from running. I now have a pair of AirPods Pro which are supposed to be sweat resistant but I’m skeptical. If I do a long run in the summer there’s a lot of
68.
by becurious 5y ago
No XML Parsers. Limited i18n / l10n support in the OS. File formats that were serialized structs. Limited art (I remember looking at the time zone map in the resources of some Win 9X DLL and it was a palettized bitmap. The palette inde
69.
by becurious 5y ago
I stopped wearing my Oticon Opn S hearing aid when running because they don’t seem happy with sweat on a long run. That and wind noise can still be an issue. Also only having hearing loss in one ear means that they’re not really good for st
70.
by becurious 5y ago
If you had many lookups to do, then an approach with a coroutine that issues a prefetch instruction then yields to other lookups while the data is fetched in memory might be effective. Similar to this: http://www.vldb.org/pv
71.
by becurious 5y ago
Wanting to do my own 3D graphics after playing Elite was a strong motivator. I figured out all the rotation maths just by drawing triangles on paper and figuring out what the angles were and therefore the formulas. You might be able to find
72.
by becurious 5y ago
There were many 3rd party add-on keyboards for the 16K/48K Spectrum. I got the Saga 1 Emperor keyboard the Christmas after I got my 48K. You opened the case of the Spectrum, removed the ribbon connectors from the board and then attache
73.
by becurious 6y ago
No, there is CE marking for medical devices in the EU which means it has achieved conformity for the Medical Devices directive. Generally equivalent to FDA regulation.