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Emulating aarch64 in software using JIT compilation and Rust

news.ycombinator.com Unknown 2025-10-20 12:58:02

Emulating aarch64 in software using JIT compilation and Rust by Manos Pitsidianakis on 2025-08-25 I was able to write a simple just-in-time compiled emulator for the aarch64 ISA (Arm A-profile A64 Instruction Set Architecture). The Armv8-A/Armv9-A specs are massive in size, so the initial scope is for basic functionality and almost no optional architectural features such as SIMD. I wrote the emulator as an exercise in understanding how QEMU’s TCG (Tiny Code Generator) software emulation works

Topics: entry gdb instruction let memory

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From Multi-Head to Latent Attention: The Evolution of Attention Mechanisms

news.ycombinator.com Unknown 2025-10-24 10:45:24

From Multi-Head to Latent Attention: The Evolution of Attention Mechanisms Vinithavn 7 min read · 15 hours ago 15 hours ago -- Listen Share Press enter or click to view image in full size What is attention? In any autoregressive model, the prediction of the future tokens is based on some preceding context. However, not all the tokens within this context equally contribute to the prediction, because some tokens might be more relevant than others. The attention mechanism addresses this by allow

Topics: attention context key query vectors

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In a new filing, Apple fights back against court’s ‘indefensible’ Epic Games ruling

9to5mac.com Marcus Mendes 2025-10-24 16:11:36

Earlier this evening, Apple filed a reply brief with the Court of Appeals for the Ninth Circuit, arguing multiple points why the court should either reverse Judge Yvonne Gonzalez Rogers’ 2021 decision, or vacate the new injunction and assign a new judge to the case. Here are the details. ‘Indefensible’, ‘overbroad’, and ‘flawed’ In a 42-page document, Apple minces no words to refute both Epic Games’ arguments and the district court’s ruling, particularly regarding the “improper expansion and m

Topics: apple court district injunction new

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iPhone’s Crash Detection feature saves teen who fell asleep behind the wheel

9to5mac.com Marcus Mendes 2025-10-25 03:15:38

This is probably not the first time you’ve read about an iPhone automatically calling 911 following a serious car crash, but stories like this never cease to impress. Watch the video below. As reported by WFMJ, earlier this month, 16-year-old Lindsay Leskovac fell asleep while driving back home late at night. She crashed her truck, suffered multiple fractures, including both legs and her cervical spine, and lost consciousness. Upon detecting the crash, her iPhone automatically dialed 911, and

Topics: crash detection iphone later watch

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Today's NYT Connections: Sports Edition Hints and Answers for Aug. 30, #341

cnet.com See Full Bio 2025-10-25 03:24:00

Looking for the most recent regular Connections answers? Click here for today's Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Strands puzzles. Today's Connections: Sports Edition is tough. The purple category was a complete guess for me, and I didn't do great on the blue category either. If you're struggling but still want to solve it, read on for hints and the answers. Connections: Sports Edition is out of beta now, making its debu

Topics: answers connections group sports today

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Marvell stock slumps 18% after chipmaker's data center revenue, forecast disappoint

cnbc.com Annie Palmer 2025-10-25 07:01:09

Shares of Marvell Technology plunged 18% on Friday after the artificial intelligence chipmaker's data center revenue fell short of estimates and it gave lackluster guidance for the current quarter. Here's how the company did in comparison with LSEG consensus estimates: Earnings per share: 67 cents adjusted vs. 66 cents expected 67 cents adjusted vs. 66 cents expected Revenue: $2.01 billion vs. $2.01 billion expected Revenue jumped 58% from a year ago in the fiscal second quarter that ended A

Topics: billion cents company expected revenue

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Ambarella stock rips 16% higher after earnings as AI demand boosts guidance

cnbc.com Chris Eudaily 2025-10-25 07:03:14

Ambarella stock climbed 16% higher Friday as the chip designer reported better-than-expected fiscal second-quarter results and issued strong guidance. Here's how the company did compared with LSEG expectations: Earnings: 15 cents per share adjusted vs 5 cents per share expected 15 cents per share adjusted vs 5 cents per share expected Revenue: $96 million vs $90 million expected Ambarella, which is known for its system-on-chip semiconductors and software used for edge artificial intelligence

Topics: cents edge expected million share

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Electricity Is Becoming Unbelievably Expensive as the US Power Grid Decays Into Ruin

futurism.com Unknown 2025-10-25 06:19:56

The US electrical grid is facing a stress test like never before. Thanks to a perfect storm of AI power consumption, climate crisis, crony capitalism, and a president bent on uprooting perfectly good energy infrastructure, the country's already-struggling power system is rapidly crumbling as costs balloon into the stratosphere. A recent analysis by Bloomberg underscores just how dire it's getting. In the country's largest continuous grid — a 13-state monstrosity managed by PJM Interconnection L

Topics: energy grid infrastructure pjm power

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Today's NYT Connections Hints, Answers and Help for Aug. 30, #811

cnet.com See Full Bio 2025-10-25 07:00:05

Looking for the most recent Connections answers? Click here for today's Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections: Sports Edition and Strands puzzles. Today's NYT Connections puzzle had some super-weird words in it. Reich? Stink? Suck? Both Emo and Eno? Read on for clues and today's Connections answers. The Times now has a Connections Bot, like the one for Wordle. Go there after you play to receive a numeric score and t

Topics: answers connections group today words

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Hardware Flaw in Apple A16 Chip: Debug Logic Active on Production Devices

news.ycombinator.com Unknown 2025-10-25 15:01:23

A16-FuseBypass: Debug Logic Enabled on Production Apple Silicon Overview This repository documents a critical hardware-level vulnerability in the Apple A16 Bionic chip used in iPhone 14 Pro Max and related devices. The flaw allows debug logic—meant strictly for development silicon—to be executed on production-fused devices ( dev-fused = 0 ) running stock, unmodified iOS with debug = 0x0 . No jailbreak. No provisioning profile. No tampering. Just flawed hardware trust enforcement. Summary of

Topics: apple debug fused hardware production

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Nvidia CEO Says AI Will Actually Make Us Busier in the Future

gizmodo.com Matt Novak 2025-10-25 15:15:09

Elon Musk recently insisted that our robot-filled future will allow humans to collect free money for doing nothing, while bots do all the labor. But Nvidia CEO Jensen Huang doesn’t seem to be buying that narrative. In fact, Huang seems to think advancements in AI and robotics are going to mean that humans will be busier than ever in the world of tomorrow. Huang appeared on Fox Business on Thursday, where he talked about the controversy surrounding selling chips to China, Nvidia’s success as a $

Topics: ai day expect future huang

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Marvell stock slumps 16% after chipmaker's data center revenue, forecast disappoint

cnbc.com Annie Palmer 2025-10-25 19:58:02

Shares of Marvell Technology plunged 15% on Friday after the artificial intelligence chipmaker's data center revenue fell short of estimates and it gave lackluster guidance for the current quarter. Here's how the company did in comparison with LSEG consensus estimates: Earnings per share: 67 cents adjusted vs. 66 cents expected 67 cents adjusted vs. 66 cents expected Revenue: $2.01 billion vs. $2.01 billion expected Revenue jumped 58% from a year ago in the fiscal second quarter that ended A

Topics: billion cents company expected revenue

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Great Scott! ‘Back to the Future’ Is Getting a Snazzy Theatrical Re-Release

gizmodo.com Cheryl Eddy 2025-10-25 19:30:17

Forty years after its release, Back to the Future‘s pop-culture presence is as strong as ever thanks to theme parks, the tie-in musical, a missing-guitar mystery, and simply the enduring love for the movie itself. Starting October 31, fans can revisit the Robert Zemeckis-directed, Steven Spielberg-produced time-travel classic on the big screen. And we do mean big: this re-release is targeting premium, large-scale formats, including Dolby Cinema, 4DX, and D-Box—as well as IMAX. According to a Un

Topics: anniversary future october release set

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Samsung’s take on Pixel Screenshots is finally available to global users

androidauthority.com Unknown 2025-10-25 23:26:06

Ryan Haines / Android Authority TL;DR Global Galaxy owners on One UI 6 or later can now try out the Collections app. This app was previously exclusive to users in China. The app stores information and allows you to easily search for it, sort it by app, and summarize it with AI. Google offers a handy app called Pixel Screenshots, which makes it easy to organize and recall information from screenshots and photos. If you didn’t know, Samsung has a similar, but different app called Collections.

Topics: ai app collections galaxy information

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This ‘Magical’ Material That Dissolves Like Candy Is Exactly What EVs Have Been Missing

gizmodo.com Gayoung Lee 2025-10-25 23:40:05

The irony of eco-friendly electric vehicles is the mountainous load of electronic waste they produce. So far, most targeted efforts to recycle EV batteries have been expensive and chemically toxic—and they haven’t stuck. That could change soon, however, thanks to a promising breakthrough from MIT. In a Nature Chemistry paper published August 28, researchers describe a new type of self-assembling material that easily dissolves in organic solvents. It works reasonably well as the electrolyte in a

Topics: battery cho electrolyte lithium material

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Framework actually did it: I upgraded a laptop’s entire GPU in just three minutes

theverge.com Sean Hollister 2025-10-25 23:09:02

is a senior editor and founding member of The Verge who covers gadgets, games, and toys. He spent 15 years editing the likes of CNET, Gizmodo, and Engadget. Posts from this author will be added to your daily email digest and your homepage feed. On Tuesday, I told you how the modular computer company Framework was finally fulfilling its promise of the “holy grail for gamers” — a laptop with modular, swappable discrete graphics cards so easy to swap, practically anyone can do it at home. The fir

Topics: actually framework laptop new upgrade

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Students Shocked by Instructor's Ruthless Response to Suspected AI Use on Exam

futurism.com Unknown 2025-10-26 02:26:10

In classrooms, reactions to the rise of artificial intelligence have ranged from abject horror from some educators to excited adoption from others. With ChatGPT approaching its three-year birthday, we've seen students and teachers alike issue all kinds of complaints and defenses — and this latest one might take the cake for the more extreme backlash we've seen. As New Zealand's Stuff reports some 115 postgraduate students at the country's Lincoln University were flabbergasted to learn that the

Topics: added ai email lecturer students

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Security Bite: Why it’s mathematically impossible to stop malware

9to5mac.com Arin Waichulis 2025-10-26 03:11:59

9to5Mac Security Bite is exclusively brought to you by Mosyle, the only Apple Unified Platform. Making Apple devices work-ready and enterprise-safe is all we do. Our unique integrated approach to management and security combines state-of-the-art Apple-specific security solutions for fully automated Hardening & Compliance, Next Generation EDR, AI-powered Zero Trust, and exclusive Privilege Management with the most powerful and modern Apple MDM on the market. The result is a totally automated Appl

Topics: apple behavior detection malware program

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10 Sunglass Colors and How They Improve Your Vision and Eye Health

cnet.com See Full Bio 2025-10-25 23:18:00

Summer days and outdoor adventures go hand in hand. You know what else goes alongside? A great pair of sunglasses to keep your eyes protected. A solid pair of sunglasses is just as important as high quality sunscreen. Prolonged exposure to UV rays can harm your eyes, and the tint of your lenses can make a much bigger difference than you might think. Different lens colors filter light in unique ways and can impact everything from eye health to depth perception. This means certain shades might be

Topics: activities best eye lenses sunglasses

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Ambarella stock rips 20% higher after earnings as AI demand boosts guidance

cnbc.com Chris Eudaily 2025-10-26 07:12:24

Ambarella stock roared 20% higher Friday as the chip designer reported better-than-expected second-quarter results and issued strong guidance. Here's how the company did compared to LSEG expectations: Earnings: 15 cents per share adj. vs 5 cents per share expected 15 cents per share adj. vs 5 cents per share expected Revenue: $96 million vs $90 million expected Ambarella, which is known for its system-on-chip semiconductors and software used for edge artificial intelligence, said it expects

Topics: cents expected lseg million share

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Not Even $20 Million Would’ve Gotten Ridley Scott to Direct ‘Terminator 3’

gizmodo.com Isaiah Colbert 2025-10-26 07:03:14

There comes a time in a creative’s life when all the qualms one might have had around being brutally honest about their career’s highlights, their missed opportunities, and their happily avoided pitfalls seem to slip away. And joining the fray of old auteur’s saying the darnedest things is Alien director Ridley Scott, who just revealed that he was offered beaucoup bucks to direct Terminator 3: Rise of the Machines—but he turned it down. In an interview with The Guardian, (the outlet for many of

Topics: alien cameron direct scott terminator

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Antarctica Is Unraveling

gizmodo.com Matt Simon 2025-10-26 07:10:15

Seen from space, Antarctica looks so much simpler than the other continents—a great sheet of ice set in contrast to the dark waters of the encircling Southern Ocean. Get closer, though, and you’ll find not a simple cap of frozen water, but an extraordinarily complex interplay between the ocean, sea ice, and ice sheets and shelves. That relationship is in serious peril. A new paper in the journal Nature catalogs how several “abrupt changes,” like the precipitous loss of sea ice over the last dec

Topics: antarctica climate ice said sea

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GoPro Needs to Get Its Act Together if These Leaks for DJI’s Tiny Action Camera Are Real

gizmodo.com Kyle Barr 2025-10-26 07:33:17

DJI is taking yet another cue from Insta360. The China-based company recently pulled the curtain on its first 360 camera, the Antigravity A1, but there are more unique cameras to rip off. DJI may also have a “Nano” action camera with a detachable pod, something very close in shape and capabilities to the recent Insta360 Go Ultra. Even if DJI is stuck copying its competitor, at least it’s bringing something new to the world of action cameras, unlike a certain company that rhymes with “Slow no.”

Topics: action camera device dji osmo

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Contrastive Representations for Temporal Reasoning

news.ycombinator.com Unknown 2025-10-26 06:42:40

In classical AI, perception relies on learning spatial representations, while planning—temporal reasoning over action sequences—is typically achieved through search. We study whether such reasoning can instead emerge from representations that capture both spatial and temporal structure. We show that standard temporal contrastive learning, despite its popularity, often fails to capture temporal structure, due to reliance on spurious features. To address this, we introduce Contrastive Representati

Topics: crtr reasoning representations structure temporal

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Clues for Apple's iPhone 17 Event Point to More Than Thin Phones

cnet.com See Full Bio 2025-10-26 10:00:05

The iPhone lineup will forever change on Sept. 9, as Apple's big "Awe Dropping" iPhone 17 event might reveal an ultra-thin model, nicknamed by many as "iPhone Air." Months of leaks, reports and rumors have analysts and pundits not only expecting a new, thinner iPhone in the 10 a.m. PT live-streamed presentation, but also new models of the Apple Watch Series 11 and AirPods Pro 3. Apple may have hidden clues in the art of the announcement. For this week's episode of One More Thing, embedded above

Topics: apple expecting iphone new thinner

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Google Phone app’s Calling Cards are now rolling out widely: Here’s what you need to know

androidauthority.com Unknown 2025-10-26 15:19:10

AssembleDebug / Android Authority TL;DR • Google’s “Calling Cards” feature is now widely rolling out in v188 of the Phone app, allowing Android users to personalize incoming/outgoing call screens with full-screen photos and styling options. Calling Cards differs from Apple’s Contact Posters in that it gives you full control over how each contact appears on your device — you set one card per contact manually. Alongside Calling Cards, the updated app introduces major UI changes, including a new

Topics: calling cards contact google phone

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My top 6 productivity apps for Linux that are lesser known - but shouldn't be

zdnet.com Jack Wallen 2025-10-26 15:30:00

JuSun/iStock/Getty Images Plus Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Linux has tons of productivity tools waiting to help. There are both GUI and command-line apps available. All of the tools listed are free to use. When you think of productivity, I'm sure the usual suspects come to mind: Office suite Groupware PDF creators/editors Image editors File managers Content Management Systems (CMS) To-do lists Project management tools To assume those

Topics: free gemini productivity tool use

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‘The Wizard of Oz’ at the Sphere Has a Shocking 2-Second Cameo: David Zaslav

gizmodo.com Sabina Graves 2025-10-26 02:26:42

The Sphere’s version of The Wizard of Oz has already drawn controversy over its use of AI. Now we know another unsettling element has been introduced into the Hollywood classic: a likeness of Warner Bros. Discovery CEO and president David Zaslav. No, really: the exec, along with the Sphere’s executive chairman and CEO, James Dolan, will be superimposed on the faces of uncredited background characters in what are apparently blink-and-you’ll-miss-them appearances. The stunt is to celebrate the mo

Topics: ai characters hollywood sphere think

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Simple prompt or agent workflow? How not to overthink AI

zdnet.com Joe Mckendrick 2025-10-26 22:34:00

Photobank2/iStock/Getty Images Plus Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Gen AI success is about knowing which approach to use. Start with the simplest tool that solves your problem. Sometimes you'll need a prompt, and other times an agent workflow. "You're probably making AI harder than it needs to be." This advice from Corey Noles and Grant Harvey's latest episode of The Neuron podcast urges greater simplicity in what has become a complicated and c

Topics: ai need noles prompt structured

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DJI Mic 3 Review: The Best Wireless Mic Gets Better

wired.com Sam Kieldsen 2025-10-26 23:00:00

When DJI announced the Mic 3 just 18 months after the excellent Mic 2, I didn’t really get it. The Mic 2 has been my own go-to wireless microphone (bought with my own money, no less) for over a year now, and it still feels new to me. What could justify yet another iteration so soon? It took about five seconds with the Mic 3 in my hands to understand exactly what DJI was thinking. The transmitter units are dramatically smaller and lighter than those on the Mic 2, so much so that they feel like e

Topics: actually case dji entirely mic

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Latest Tech News

Emulating aarch64 in software using JIT compilation and Rust

From Multi-Head to Latent Attention: The Evolution of Attention Mechanisms

In a new filing, Apple fights back against court’s ‘indefensible’ Epic Games ruling

iPhone’s Crash Detection feature saves teen who fell asleep behind the wheel

Today's NYT Connections: Sports Edition Hints and Answers for Aug. 30, #341

Marvell stock slumps 18% after chipmaker's data center revenue, forecast disappoint

Ambarella stock rips 16% higher after earnings as AI demand boosts guidance

Electricity Is Becoming Unbelievably Expensive as the US Power Grid Decays Into Ruin

Today's NYT Connections Hints, Answers and Help for Aug. 30, #811

Hardware Flaw in Apple A16 Chip: Debug Logic Active on Production Devices

Nvidia CEO Says AI Will Actually Make Us Busier in the Future

Marvell stock slumps 16% after chipmaker's data center revenue, forecast disappoint

Great Scott! ‘Back to the Future’ Is Getting a Snazzy Theatrical Re-Release

Samsung’s take on Pixel Screenshots is finally available to global users

This ‘Magical’ Material That Dissolves Like Candy Is Exactly What EVs Have Been Missing

Framework actually did it: I upgraded a laptop’s entire GPU in just three minutes

Students Shocked by Instructor's Ruthless Response to Suspected AI Use on Exam

Security Bite: Why it’s mathematically impossible to stop malware

10 Sunglass Colors and How They Improve Your Vision and Eye Health

Ambarella stock rips 20% higher after earnings as AI demand boosts guidance

Not Even $20 Million Would’ve Gotten Ridley Scott to Direct ‘Terminator 3’

Antarctica Is Unraveling

GoPro Needs to Get Its Act Together if These Leaks for DJI’s Tiny Action Camera Are Real

Contrastive Representations for Temporal Reasoning

Clues for Apple's iPhone 17 Event Point to More Than Thin Phones

Google Phone app’s Calling Cards are now rolling out widely: Here’s what you need to know

My top 6 productivity apps for Linux that are lesser known - but shouldn't be

‘The Wizard of Oz’ at the Sphere Has a Shocking 2-Second Cameo: David Zaslav

Simple prompt or agent workflow? How not to overthink AI

DJI Mic 3 Review: The Best Wireless Mic Gets Better

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