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Gjennom

@gjennom.bsky.social
97 followers 115 following 169 posts

Amateur dishwasher, professional time waster 🌻🌻🌻

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Reposted by Gjennom
Ken Shirriff @righto.com · 13/06/2026
Intel introduced the 8087 floating-point chip in 1980 to make math faster. The chip does tangents, square roots, and so forth, but fundamentally everything is computed through additions and subtractions, performed by an adder at the heart of the chip. Let's look at the adder's circuitry... 1/N
A die photo of the 8087 chip, with functional blocks labeled. The die has complex patterns with roughly rectangular shapes. Around the edges, thin bond wires connect the die to the chip's 40 external pins.
In the bottom center, the adder is highlighted. It is a tall, thin rectangle in the middle of the "fraction datapath". Above it is the exponent datapath.
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Gjennom @gjennom.bsky.social · 28/04/2025
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Gjennom @gjennom.bsky.social · 19/04/2025
Sprungly grimbo
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Gjennom @gjennom.bsky.social · 28/03/2025
Gravity simulation with 500 point masses
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