Please note: we have made some forum changes regarding user data and privacy.
More info here: Planned downtime for the forum and changes.

What about SSE3/SSE4 support?

Frequently Asked Questions about the Pale Moon browser and their answers.

Moderator: satrow

User avatar
Pale Moon guru
Pale Moon guru
Posts: 24906
Joined: 2011-08-28, 17:27
Location: 58°2'16"N 14°58'31"E

What about SSE3/SSE4 support?

Post by Moonchild » 2011-10-14, 10:00

What about SSE3/SSE4 support?

This will not be specifically used in Pale Moon, for a few reasons:
  • The most important one: the compiler used doesn't include support for compiling with these SIMD extensions (in fact, SSE2 support is already half-broken; go Microsoft! :roll:). This would mean that if it were desired, it would have to be manually programmed in assembly for every single function where it would be desired.
  • The specific advantages of using SSE3 and SSE4 would be mostly interesting for video and sound processing, not for a browser. The areas where these kinds of calculations are used (graphics libraries) are already manually optimized.
  • Every higher SSE level further limits the amount of computers the browser will run on. Pale Moon aims to be a middle road, to cut away support for archaic architectures, but still allow a fairly broad user base.
  • Using a different compiler that supports more advanced SIMD instruction sets (Like Intel's) would potentially be an option, but compiling with a different compiler on Windows is not properly supported in the Firefox code base, and has shown to lead to either build errors or totally unstable binaries.
"If you want to build a better world for yourself, you have to be willing to build one for everybody." -- Coyote Osborne