Most cited

Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 809 posts.

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2019
125

Status as a Service

Editor's Note 1 : I have no editor. Editor’s Note 2 : I would like to assure new subscribers to this blog that most my posts are not as long as this one. Or as long as my previous one . My long break from posting here means that this piece is a collection of what would’ve normally been a series

136

Popcount CPU instruction

Most CPU architectures in use today have an instruction called popcount , short for “population count”. Here’s what it does: it counts the number of set bits in a machine word. For example (assuming 8-bit words for simplicity), popcount(00100110) is 3 and popcount(01100000) is 2 .

139

Homebrew Cray-1A

As part two ( see previous attempt ) of my ongoing series in ‘computational necromancy,’ I’ve spent the last year and a half or so constructing my own 1/10-scale, binary-compatible, cycle-accurate Cray-1. This project falls purely into the “because I can!” category – I was poking around the internet one day looking…