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How is Ultrassembler so fast?
Ultrassembler is a superfast and complete RISC-V assembler library that I'm writing as a component of the bigger Chata signal processing project.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 21,842 posts.
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JRuby 1.7.0. Released
After a long journey (1.5 years..oh my) we have released JRuby 1.7.0. The JRuby 1.7 release series represents a tremendous amount of work by dozens of contributors, and there are improvements in every subsystem. Users of highly-concurrent applications will see improvements in throughput and raw parallelism. And JRuby…
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The Shitty Stack System
How Microsoft's ruthless employee evaluation system annihilated team collaboration.
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Thoughts on PostgreSQL in 2024
A look ahead at some ongoing projects in PostgreSQL in 2024 and beyond
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Unpacking Elixir: Syntax
Elixir is a language with syntactical roots in Ruby. It also carries the Erlang legacy. Legacy used here as in "a great legacy" and not as in "system you don't like anymore". Ruby is an object-oriented language. Elixir is functional language. The Erlang part has an impact as Elixir was designed to provide strong…
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Unexplored Areas in Data Compression
A good colleague of mine, Rich Geldreich put up a interesting article talking about his viewpoints in future directions in lossless…
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.NET Core gRPC
The .NET team at Microsoft has been working in close collaboration with the gRPC team since November 2018 on a new fully managed implementation of gRPC for .NET Core. We’re pleased to announce that grpc-dotnet is now available with .NET Core 3.0 today! How to get it? grpc-dotnet packages have just been released to…
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I made a thing to help you make a thing out of a keypad
I do a lot of electronics projects in my spare time, and I tend to try to make reusable parts to save myself effort in the future. Because I have to order ingredients in certain quantities, I often wind up with more than I need for my project.
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A bit of background for the unified C++ call proposal
C++ provides two calling syntaxes, x.f(y) and f(x,y). This has bothered me for a long time. I discussed the problem in the context of multimethods in D&E in 1994, referring back to a proposal by Doug Lea from 1991, and again in 2007. Each of the syntaxes has its virtues, but they force design decisions on people…
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Heroku-style deployments with Docker and Git tags
In this post I want to explain a new deployment method I came up with while working on drwn.io. I wanted it to meet a few requirements: Simple Based on git tags Zero-downtime Easy rollbacks Creating …
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First impressions about Graal VM
Last week was the release of Oracle’s GraalVM. As stated on the website: GraalVM is a universal virtual machine for running applications written in JavaScript, Python 3, Ruby, R, JVM-based languages like Java, Scala, Kotlin, and LLVM-based languages such as C and C++. GraalVM removes the isolation between programming…
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JRuby Creator's Short List of Key Missing JVM Features
I mused today on Twitter that there's just a few small things that the JVM/JDK need to become a truly awesome platform for all sorts of development. Since so many people asked for more details, I'm posting a quick list here. There's obviously other things, but these are the ones on my mind today.Cold…
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Gpiozero Flow
Back in 2015, I had the idea for gpiozero — a Python library for Raspberry Pi, making programming GPIO devices simpler by abstraction: instead of thinking about pin channels, voltages, pull-up resistors and rising or falling edges, we think about buttons being pressed and released, sensors...
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Reversing for dummies – x86 assembly and C code (Beginner/ADHD friendly)
Before I got into reverse engineering, executables always seemed like black magic to me. I always wondered how stuff worked under the hood, and how binary code is represented inside .exe files, and how hard it is to modify this ‘compiled code’ without access to the original source code.
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Why do database columns have a character length of 191?
`varchar(191)` is such an odd number - how did we get here?
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Reverse Engineer Amazon's Whispersync
I am a big fan of my Kindle. This is the device I’d bring over to a desert island. I am also a fairly frequent user of the highlight feature where you can select a bit of text you like and save it. One thing is bothering me though: the lack of open API on the Kindle to retrieve the data about me. Amazon provides the…
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I found an 8 years old bug in Xorg
Let me set the right expectations first. This bug I found is actually not that complicated, it's very straightforward once you see what's going on. But I still think the process it took me to uncover this bug could be interesting. It's also kind of interesting that a simple bug stayed undiscovered for so long. I will…
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Systems Programmers Relax - Most Programming Advice Isn't For You
I'm an incredibly slow programmer (in the hobby projects I do for the love of it, that is). My ratio of thinking to typing must be around 10...
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Developer ports iOS core to non-Apple hardware
Reecently, I achieved one of the core milestones of my personal project, porting the Darwinkernel to the ARM architec...
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Programming Algorithms in Lisp: Data Structures
The next several chapters will be describing the basic data structures that every programming language provides, their usage, and the most i...
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Notes on “A Philosophy of Software Design”
Jumping on the recent trend, I picked up a copy of A Philosophy of Software Design based on Cindy’s recommendation. It’s a fairly concise read at 160 pages, and I skimmed through it over the last few days, writing up some notes along the way.
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GLFW 3.3 Is Released
New GLFW release announcement.
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Finding your way in vim: tags, cscope, grep and more
Vim is quite powerful programmer's editor, but has a very steep learning curve and it takes time to configure it properly. In this tutorial...
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80386 Protection
I'm building an 80386-compatible core in SystemVerilog and blogging the process. In the previous post , we looked at how the 386 reuses one barrel shifter for all shift and rotate instructions. This time we move from real mode to protected and talk about protection .
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