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SweRV – An Annotated Deep Dive of the SweRV RISC-V Core
Every 6 months, the RISC-V consortium organizes a two day workshop where various companies and research entities present work that is one way or the other related to RISC-V.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,807 posts.
Hardware & Electronics
Any year
4262
Exploring Dithering on Spectra 6-color E-Ink Displays
I have tested the XIAO ePaper DIY Kit (ESP32-S3) – EE04 from Seeed Studio in depth. While its 6-color Spectra 6 display is impressive out of the box, I wanted to see if software could overcome hardware limitations. In this post, I’ll share how I’ve pushed this hardware to its limits by using dithering techniques to…
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The ARM powered ThinkPad x13s, as a developer
The ARM powered Thinkpad x13s is the first truly premium Windows on ARM laptop. Let's see how that actually stacks up as a software engineer!
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Mixed Reality gone in Windows 11 Insider Preview Build 26052
UPDATE 2/9: Added an important known issue for Dev Drive users. Please see the known issues below. Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 26052 to the Canary
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Audi Cruise Control Bug
I noticed a "bug" in the way Audi handles its Cruise Control options. Cruise control is only meant to be used once you drive "30 kilometers per hour or more". …
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Notes on ExFAT and Reliability (2021)
Is exFAT as fragile as some say?
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Exploring Windows XP on macOS ARM64
Windows XP I have a lot of fond memories of Windows XP and after feeling nostalgic, I was happy to find out that it’s relatively easy to take it for a spin on an ARM64 Mac using QEMU. I decided to install XP and an assortment of classic software one final time, taking screenshots of the whole process. This included…
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The History of ThinkPad: From IBM’s Bento Box to Lenovo’s AI Workstations
A sourced history of ThinkPad from IBM's 1992 700C to Lenovo's 2026 AI workstations: TrackPoint, keyboards, X-series, T-series and P-series.
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GTX 1080s: Testing a Legend
Welcome to LTT Labs - your go-to destination for all things tech. Explore comprehensive test results, insightful commentary, and the latest analysis in hardware.
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One-Hour Mandelbrot: Creating a Fractal on the Vintage Xerox Alto
I wrote a short program to generate the Mandelbrot set on the Xerox Alto, a groundbreaking minicomputer from the 1970s. The program, in...
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A Cloud-Scale Acceleration Architecture: FPGAs in Microsoft’s Datacenters
A hyperscale Configurable Cloud architecture using FPGAs to efficiently accelerate networking and applications with a distributed fabric in the data center.
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Oculus to Acquire Carbon Design Team
We’re thrilled to announce that we’ve agreed to acquire the Carbon Design team, one of the premier industrial design and product engineering...
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Neumann Drive: A Pulsed Cathodic Arc Thruster for Spacecrafts
Your Content Goes Here THE NEW STANDARD FOR IN-SPACE PROPULSION Our Products The Neumann Drive’s superior electric propulsion system doesn’t just focus on performance; it covers the full mission lifecycle. Our product range covers CubeSat, SmallSat and specific client requirements. Simple, solid-state, robust design…
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How to run C programs on the BeagleBone's PRU microcontroller
This article describes how to write C programs for the BeagleBone's microcontrollers. The BeagleBone Black is an inexpensive, credit-card...
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The analog computer for the Nike missile system (2001)
Nike computer - Installed in class room, not BC van. From Rolf Goerigk Left rack has the power supplies - outputs about 7 different voltages. Top panel is switches, meters, voltage warning lights. (Note: in the van installation, this rack is on the right side of the computer.) Middle two racks - operational amplifies…
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Why Ice Lake is Important – a bit-basher’s perspective
With Computex, there’s been a ton of news about Ice Lake (hereafter ICL) and the Sunny Cove core (SNC). Wikichip, Extremetech and Anandtech among many others have coverage (and there will be …
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Extracting Bitlocker Keys from a TPM
Extracting BitLocker keys sealed with a TPM by sniffing the LPC bus
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How to talk to your parents about hardware memory safety
Some conversations are difficult to have with members of older generations who grew up with different social norms. In particular, when you’re talking to people who grew up with PDP-11s with their completely flat memory, or Lisp machines or Burroughs Large Systems with their deeply opinionated and language-integrated…
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TPU v4 provides exaFLOPS-scale ML with efficiency gains
A new paper describes how Google’s Cloud TPU v4 outperforms TPU v3 by 2.1x on a per-chip basis, and improves performance/Watt by 2.7x.
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A Solar Kiln to dry wood. Overview, design and build (2019)
The solar kiln is based on the well know Virginia Tech design, adapted for my own needs and materials I could find easily on local hardware stores. Mine is a small one, with a gross storage space inside of about 1.5 m in length, 0.85 m wide and 0.65 high (~5’ x 2.75’ x 2’ ).
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Exploiting zero days in abandoned hardware
We successfully exploited two discontinued network devices at DistrictCon’s inaugural Junkyard competition in February, winning runner-up for Most Innovative Exploitation Technique. Our exploit chains demonstrate why end-of-life hardware poses persistent security risks.
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Features and Benefits of Bluetooth Mesh 1.1 for Wireless Mesh Networking
Commercial and industrial applications like lighting require large-scale, low-power device networks where thousands of devices need to communicate with one another efficiently, reliably and securely.
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PC-XT Emulator on a ESP8266 (2018)
Can you run a 8086 PC-XT emulation with 640K RAM, 80×25 CGA composite video and a 1.44MB MS-DOS disk on a ESP12E without additional components? Yes, you can and I did. The CPU emulator is a po…
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Here's to the systems programmers – Writing Hello World on a home brew CPU
Writing Hello World on a homebrew CPU
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Reversing the AMD Secure Processor (PSP) – Part 2: Cryptographic Co-Processor
Part one: https://dayzerosec.com/blog/2023/04/17/reversing-the-amd-secure-processor-psp.html This is a follow-up part 2 to my previous post on the AMD Secure Processor (formerly known as the Platform Security Processor or "PSP"). In that post, I mentioned that the Cryptographic Co-Processor (CCP) is an essential…
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Designing my own ASIC with tiny tapeout
First, what is an ASIC? An ASIC is an Application Specific Integrated Circuit which basically means that it is an Integrated Circuit on a single piece of silicon and its use is limited to a particu…
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