Mastodawn

🚀 Wow, #groundbreaking news: most 64-bit #integers are just too big to care about their little 32-bit parents! 🔒 But hey, you can't read about it because #access is FORBIDDEN! 🤦‍♂️ What a tease!
https://lemire.me/blog/2026/05/22/only-17-of-all-64-bit-integers-are-products-of-two-32-bit-integers/ #news #64bit #forbidden #tech #tease #HackerNews #ngated

Only 17% of all 64-bit Integers are products of two 32-bit integers

In software programming, the product between two integers is often computed to a fixed number of bits with overflow. Consider 8-bit integers. If you multiply 127 by 127, you get back the number 1 as an 8-bit unsigned integer, with an overflow. The actual full product is 16129. To represent 16129, you typically use 16 … Continue reading Only 17% of all 64-bit Integers are products of two 32-bit integers

Daniel Lemire's blog

AskUbuntu May 21

Unable to install Steam necessary 32-bit drivers? #drivers #nvidia #64bit #steam #32bit

https://askubuntu.com/q/1567026/612

Unable to install Steam necessary 32-bit drivers?

I'm running Ubuntu 26.04 LTS, 64-bit, Linux 7.0.0-15-generic, gnome version 50. And using an NVIDIA GeForce RTX 3060. +------------------------------------------------------------------------------...

Ask Ubuntu

AskUbuntu May 21

Unable to install steam necessary 32bit drivers? #drivers #nvidia #64bit #steam #32bit

https://askubuntu.com/q/1567026/612

Unable to install steam necessary 32bit drivers?

I'm running Ubuntu 26.04 LTS, 64bit, Linux 7.0.0-15-generic, gnome version 50. And using a NVIDIA NVIDIA GeForce RTX 3060. I downloaded and installed the new Ubuntu, onto a newer computer. Installed

Ask Ubuntu

AskUbuntu May 19

VideoDownloadHelper stopped working on ubuntu 22.04 in the latest firefox versions 150.0.3 (64-bit) and 151.0 ( 64-bit) #firefox #video #64bit #youtube

https://askubuntu.com/q/1566969/612

VideoDownloadHelper stopped working on ubuntu 22.04 in the latest firefox versions 150.0.3 (64-bit) and 151.0 ( 64-bit)

VideoDownloadHelper stopped downloading mp4 videos on ubuntu 22.04 in the latest firefox versions 150.0.3 (64-bit) and 151.0 ( 64-bit), displaying the message: Download failed Sadly we failed at

Ask Ubuntu

Andreas Herten May 15

Moved my Home Assistant installation finally from a Raspberry Pi 4B to a small Intel box (J5005 CPU), since 32 bit ARM is not supported anymore. The main parts were already entirely using Docker, and after also moving other host-side remnants (SSH keys) or replacing them with HA-confined alternatives (the wallbox integration now has web API support instead of MQTT), it was pretty smooth. #homeassistant #hass #64bit

LinuxGizmos.com [Unofficial]May 10

SpacemiT K3 integrates 8-core RISC-V CPU cluster and 60 TOPS AI engine

https://fed.brid.gy/r/https://linuxgizmos.com/spacemit-k3-integrates-8-core-risc-v-cpu-cluster-and-60-tops-ai-engine/

Show thread

Karel 'Clock' K.May 4

@MLE_online I upcycled power Schottkies from dead power supplies.

I connected a charger directly to battery terminals of a smartphone whose battery failed, over Schottky diodes to reduce the voltage properly.

Now I have a phone which always shows 90%-100% battery.

I ran Tesseract OCR on its 4x64-bit ARM CPU over Termux and ssh and it adds another 50% computational power to my PC when I needed to OCR many pages of documents.

The power Schottkies were upcycled from dead power supplies, the cable from a broken power cord, the USB-A connector from a failed charging cable, I don't remember what the resistor and PCB comes from.

#upcycling #recycling #reuse #frugal #frugalcomputing #frugality #righttorepair #repair #DIY #homemade #powersupply #charger #charging #smartphone #arm64 #tesseract #64bit

Show thread

Karel 'Clock' K.May 4

@EUCommission I connected a charger directly to battery terminals of a smartphone whose battery failed, over Schottky diodes to reduce the voltage properly.

Now I have a phone which always shows 90%-100% battery.

I ran Tesseract OCR on its 4x64-bit ARM CPU over Termux and ssh and it adds another 50% computational power to my PC when I needed to OCR many pages of documents.

#upcycling #recycling #reuse #frugal #frugalcomputing #frugality #righttorepair #repair #DIY #homemade #powersupply #charger #charging #smartphone #arm64 #tesseract #64bit

Hacker News Apr 13

Optimization of 32-bit Unsigned Division by Constants on 64-bit Targets

https://arxiv.org/abs/2604.07902

#HackerNews #optimization #unsigneddivision #64bit #computing #arxiv #technews

Optimization of 32-bit Unsigned Division by Constants on 64-bit Targets

Granlund and Montgomery proposed an optimization method for unsigned integer division by constants [3]. Their method (called the GM method in this paper) was further improved in part by works such as [1] and [7], and is now adopted by major compilers including GCC, Clang, Microsoft Compiler, and Apple Clang. However, for example, for x/7, the generated code is designed for 32-bit CPUs and therefore does not fully exploit 64-bit capabilities. This paper proposes an optimization method for 32-bit unsigned division by constants targeting 64-bit CPUs. We implemented patches for LLVM/GCC and achieved speedups of 1.67x on Intel Xeon w9-3495X (Sapphire Rapids) and 1.98x on Apple M4 (Apple M-series SoC) in the microbenchmark described later. The LLVM patch has already been merged into llvm:main [6], demonstrating the practical applicability of the proposed method.

arXiv.org

Marco Nova Apr 11

Is Chiptune Retrogaming? - Square Terror Collective VS XCopyPro - TPA Napoli https://youtu.be/LMIlbQHbeXc?si=Rm0FiZ258qZm9Znr via
@YouTube

A night of Chiptune with 3 Gameboys of Square Terror Collective (Rome) and some C64 Amiga Sid with XCopyPro (Poland) on TPA (Terzo Piano Autogestito Napoli).

Is it enough retrogaming?

#Chiptune #SquareTerrorCollective #XCopyPro #8bit #64Bit #Sid #Amiga #Commodore64 #TPA #Napoli #TerzoPianoAutogestito

Is Chiptune Retrogaming? - Square Terror Collective VS XCopyPro - TPA Napoli

YouTube