Superoptimizing an FPU Emulator(purplesyringa.moe)
39 points by dverlaeckt80 | 6 comments
Blog post on using superoptimization to find an optimal instruction sequence for a floating-point emulator function returning a float's lowest set bit.
purplesyringa.moe on Hacker News
27 stories on the front page, newest first. Scroll down to watch the site change over time.
Who is vfmaddrnd231pd?(purplesyringa.moe)
243 points by pngmangi | 21 comments
Blog post examining the x86 FMA instruction vfmaddrnd231pd, which performs fused multiply-add with per-instruction rounding control.
Vectorized CLZ and CTZ(purplesyringa.moe)
47 points by zX41ZdbW | 5 comments
Blog post on purplesyringa explaining how to implement vectorized count-leading-zeros and count-trailing-zeros using floating-point tricks.
Grieving the loss of details(purplesyringa.moe)
448 points by signa11 | 352 comments
A personal blog post by purplesyringa reflecting on grieving the loss of low-level coding details as the industry shifts toward vibecoding and architecture-focused work.
Simplest Hash Functions(purplesyringa.moe)
44 points by ibobev | 39 comments
An ode to bzip(purplesyringa.moe)
158 points by signa11 | 82 comments
A Look at Rust from 2012(purplesyringa.moe)
148 points by todsacerdoti | 62 comments
The RAM Myth(purplesyringa.moe)
165 points by signa11 | 131 comments
“Bad Apple” in Minecraft(purplesyringa.moe)
368 points by purplesyringa | 59 comments
Blog post by purplesyringa describing how the authors built a high-quality "Bad Apple!!" animation playback inside Minecraft, with a video link.
WebP: The WebPage Compression Format(purplesyringa.moe)
511 points by Kubuxu | 185 comments
Blog post describing a trick to compress a website's HTML by encoding it into a lossless WebP image and decoding it in the browser, compared with gzip and Brotli.
