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Low-level web programming in Racket and a wiki in 500 lines
Racket provides a simple yet flexible web framework for serving dynamic web content.
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 21,842 posts.
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Retrofitting JIT Compilers into C Interpreters
C interpreters are a common language implementation technique and the basis for the reference implementations of languages such as Lua, Ruby, and Python. Unfortunately, C interpreters are slow, especially compared to language implementations powered by JIT compilers. In this post I’m going to show that it is possible…
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No Copyrights on APIs: Help Us Make The Case
Earlier this year, we applauded District Court Judge Alsup for getting it right and holding that, as a matter of law, one could not copyright APIs. The case, Oracle v. Google, is now on appeal to the Federal Circuit, where a three-judge panel is going to revisit Judge Alsup’s ruling.We’ve explained...
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Protocol Buffers, Avro, Thrift & MessagePack
Perhaps one of the first inescapable observations that a new Google developer ( Noogler ) makes once they dive into the code is that Protocol Buffers (PB) is the "language of data" at Google. Put simply, Protocol Buffers are used for serialization, RPC, and about everything in between .
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How to Write a Computer Emulator
I wrote this document after receiving large amounts of email from people who would like to write an emulator of one or another computer but do not know where to start. Any opinions and advices contained in the following text are mine alone and should not be taken for an absolute truth. The document mainly covers…
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Per Brinch Hansen's books on compilers
Brinch Hansen was one of the pioneers of concurrent programming and operating systems (kernels). In the 1960s, Brinch Hansen worked at the Danish computer company Regnecentralen, first in the compiler group headed by Peter Naur and Jørn Jensen, and, later, as the chief architect of the RC 4000 minicomputer and its…
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A look at LLVM: comparing clamp implementations
Please note that this is not an endorsement or criticism of either of these languages. It’s simply something I found interesting with how LLVM handles code generation between the two. This is an implementation quirk, not a language issue. Update (April 9, 2021): A bug report was filed and a fix was pushed! The LLVM…
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Donut.c Without a Math Library
My little donut.c has been making the rounds again, after being featured in a couple YouTube videos (e.g., Lex Fridman and Joma Tech ). If I had known how much attention this code would get over the years, I would have spent more time on it.
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The Making of Gyroscope Running, a React Native App
The making of our first React Native iPhone app
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Reverse Engineering an Eclipse Plugin
Introduction Firstly I want to note I’m not a security researcher, ethical hacker or at all competent at reverse engineering. I’m currently working as a Java developer but I’ve al…
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RubySpec is Reborn
A blog about ruby/spec.
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SaberVM
This post announces SaberVM, an abstract machine for functional programs that guarantees safety, reliability, and portability.
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The One Second Dash
The Amazon Dash is a $5 WiFi button that summons a truck to deliver you water or other stuff. Want your Dash to do something else? The popular approach is to sniff its ARP requests. This requires that Dash connect to your network, putting you perilously close to having some DUDE delivered with your IoT mood lighting.
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From zero to cooperative threads in 33 lines of Haskell
A tiny implementation of coroutines
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A gentle intro to assembly with Rust
One of the things I’ve wanted to do for a while is really dig into assembly and get into the weeds of how programs actually run. A rework of the asm macro has recently landed in nightly rust so it seemed like a good time.
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Writing, technically
Listen in on Jane Street’s Ron Minsky as he has conversations with engineers working on everything from clock synchronization to reliable multicast, build systems to reconfigurable hardware. Get a peek at how Jane Street approaches problems, and how those ideas relate to tech more broadly.
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Writing a Hypervisor in 1k Lines
Writing a Hypervisor in 1,000 Lines
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An Introduction to Vectorization
Your CPU has a 32-bit addition instruction that computes the sum of two 32-bit integers x and y, producing a 32-bit result. (The 33rd bit of the sum, the "carry bit", is usually thrown away.)
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Build your own SQLite, Part 4: reading tables metadata
As we saw in the opening post, SQLite stores metadata about tables in a special "schema table" starting on page 1. We've been reading records from this…
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Let’s Run Lisp on a Microcontroller
I was inexplicably amazed by Lisp since the first day I've seen how Lisp programs look.
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Baby's first WASM compiler
( This is part of a series on the design of zest . See the list of posts here .)
15240
Libcurl gets a URL API
libcurl has done internet transfers specified as URLs for a long time, but the URLs you'd tell libcurl to use would always just get parsed and used internally. Applications that pass in URLs to libcurl would of course still very often need to parse URLs, create URLs or otherwise handle them, but libcurl has not ……