Zenbleed(lock.cmpxchg8b.com)

1160 points by loeg 3 years ago | 327 comments

Tavis Ormandy's writeup of Zenbleed, an AMD Zen 2 CPU vulnerability that leaks data from vector registers, covering exploitation, discovery, and mitigation.

Building a UMatrix Replacement(lock.cmpxchg8b.com)

45 points by taviso 5 months ago | 13 comments

Building an FPGA 3dfx Voodoo with Modern RTL Tools(noquiche.fyi)

215 points by fayalalebrun 7 months ago | 48 comments

Why are anime catgirls blocking my access to the Linux kernel?(lock.cmpxchg8b.com)

728 points by taviso 1 year ago | 772 comments

Tavis Ormandy's essay examining Anubis, a proof-of-work anti-AI-crawler gate, covering the problem it targets, cost numbers, alternatives, and workarounds.

Totality and non-standard recursion in Idris(franklin.dyer.me)

4 points by franklin_p_dyer 2 years ago | 0 comments

Programming the Gigatron(iwriteiam.nl)

14 points by shakna 2 months ago | 1 comments

The Lost Atomic Update on Loongson CPU(jia.je)

120 points by jiegec 1 month ago | 6 comments

A blog post investigating a hardware erratum on the Loongson LA664 CPU where an atomic instruction loses updates, causing an infinite loop while packaging normaliz for Debian.

What's up, Python? The GIL removed, a new compiler, optparse deprecated(bitecode.dev)

364 points by BiteCode_dev 3 years ago | 255 comments

Bite code! newsletter roundup of July 2023 Python news: GIL removal, the LPython compiler, Pydantic 2, and soft deprecation of getopt and optparse.

The Pentium contains a complicated circuit to multiply by three(righto.com)

354 points by Tomte 1 year ago | 138 comments

Ken Shirriff's blog post reverse-engineering the Pentium's ×3 multiplier circuit, used in its base-8 floating-point multiplication, and explaining how it works.

Hardware backdoors in some x86 CPUs(github.com)

351 points by epestr 2 months ago | 95 comments

GitHub repository for Project Rosenbridge by xoreaxeaxeax, documenting and demonstrating a hardware backdoor found in some x86 CPUs.

Building the heap: racking 30 petabytes of hard drives for pretraining(si.inc)

392 points by nee1r 1 year ago | 267 comments

Standard Intelligence blog post describing how they built a 30-petabyte hard drive storage cluster in a San Francisco colocation center for under $500k to store video pretraining data.

Writing a C compiler in 500 lines of Python(vgel.me)

454 points by vgel 3 years ago | 142 comments

Blog post by vgel describing the design and architecture of a small C compiler written in about 500 lines of Python.