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The latest blog posts to take off on Hacker News. 4,109 posts.

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2025
3670

Ways to generate SSA

Static Single Assignment is a program representation where each “variable” (though this term can be misleading) is assigned exactly once. Mostly the variables aren’t variables at all, but instead names for values—for expressions. SSA is used a lot in compilers. See this lesson from Cornell for converting Bril to SSA…

3673

How Copyover MUD Servers Worked

When I was younger, I played a lot of MUDs (“ Multi-User Dungeons ” — the text-only predecessors of modern MMORPGs, often played over Telnet ). They were great fun, particularly during high school: a lightweight multiplayer game with no client state meant you could log in from any machine in any lab, even Windows…

3680

What about K?

k is a family of concise, fast vector-oriented languages designed by Arthur Whitney . Calling k a “family” is deliberate; there is no single definitive k, but instead a sequence of slightly incompatible versions. If you decide to stick with k, you’ll see mentions of k4 , k5 etc. Exactly what those numbers mean aren’t…