Latest posts
- Scaling, stretching and shifting sinusoidsMay 02, 2026Eli Bendersky
This is a brief and simple [1] explanation of how to adjust the standard sinusoid sin(x) to change its amplitude, frequency and phase shift. More precisely, given the general function: \[s(x)=A\cdot sin(w\cdot x+\theta)\] We’ll see how adjusting the parameters , and affect the shape of s(x). Each section below covers one of these aspects mathematically, and you can use the demo at the bottom to
- Thoughts on WebAssembly as a stack machineApr 30, 2026Eli Bendersky
This week the article Wasm is not quite a stack machine has been making the rounds and has caught my eye. The post claims that WASM is not a pure stack machine because it has locals and is missing some stack manipulation operations like dup and swap. While I don't necessarily disagree, IMHO it's a bit of a semantic discussion because - to the best of my knowledge - there is no formal definition of
- Debugging WASM in Chrome DevToolsApr 23, 2026Eli Bendersky
When I was working on the WASM backend for my Scheme compiler, I ran into several tricky situations with debugging generated WASM code. It turned out that Chrome has a very capable WASM debugger in its DevTools, so in this brief post I want to share how it can be used. The setup and harness I'll be using an example from my wasm-wat-samples project for this post. In fact, everything is already in p
- watgo - a WebAssembly Toolkit for GoApr 10, 2026Eli Bendersky
I'm happy to announce the general availability of watgo - the WebAssembly Toolkit for Go. This project is similar to wabt (C++) or wasm-tools (Rust), but in pure, zero-dependency Go. watgo comes with a CLI and a Go API to parse WAT (WebAssembly Text), validate it, and encode it into WASM binaries; it also supports decoding WASM from its binary format. At the center of it all is wasmir - a semantic
- Summary of reading: January - March 2026Apr 01, 2026Eli Bendersky
"Intellectuals and Society" by Thomas Sowell - a collection of essays in which Sowell criticizes "intellectuals", by which he mostly means left-leaning thinkers and opinions. Interesting, though certainly very biased. This book is from 2009 and focuses mostly on early and mid 20th century; yes, history certainly rhymes. "The Hacker and the State: Cyber Attacks and the New Normal of Geopolitics" by