Bruce Dawson personal blog

The surprising subtleties of zeroing a register (2012)

Zeroing out a CPU register seems like the simplest and most basic operation imaginable, but in fact x86 CPUs contain a surprising amount of special logic to make this operation run smoothly. The mo…
Points
112
HN comments
84
Submissions
3
Cited by
4 commenters

Systems & PerformanceSoftware Engineering2021

On Hacker News

SubmittedTitle on HNPointsComments
Nov 4, 2021The surprising subtleties of zeroing a register (2012) by gtirloni11259
Feb 27, 2019The Surprising Subtleties of Zeroing a Register (2013) by ingve10222
Feb 8, 2016The Surprising Subtleties of Zeroing a Register (2012) by qznc623

Cited in comments

Linked from 7 Hacker News comments by 4 different people, from Feb 2016 to Dec 2025.

Most recent:

Search every comment that links here →

More from Bruce Dawson

All 42 posts →

Related posts from the same era