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The latest blog posts to take off on Hacker News. 4,763 posts.

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2017
1171

Processing the Page Turn

This board isn’t strictly a CPU but it is a processor of sorts. I actually purchased this board as it was described as a DEC board, with not a great picture, having not seen a DEC board with LOGIC ALUs on it I bought it. When it arrived I found it wasnt DEC at all but DSC, Digital Services Corporation. DSC was a video…

1182

How the Catalan government uses IPFS to sidestep Spain's legal block

Catalonia, with Barcelona as its capital, is currently one of Spain’s seventeen autonomous comunities. It has a long story of pro-independence movements, and has even declared itself independent in the past. Nowadays, the political climate is very heated up. A majority of catalan people want to hold a referendum for…

1188

Visualizing Your Ruby Heap

In a previous post, I wrote a bit about how Ruby objects are laid out in memory. Today we’ll use that information to write a program that will allow us to take a Ruby heap dump and visualize the layout and fragmentation of that heap. Ruby Object Layout Recap Just as a recap, Ruby objects are fixed width. That is…

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Floating Point Visually Explained

While I was writing the Wolfenstein 3D book [1] , I wanted to demonstrate how much of a handicap it was to work without floating points. My attempts at understanding floating points using canonical [2] articles [3] were met with resistance from my brain. I tried to find a different way. Something far from $(-1)^S *…