Aras PranckevičiusSep 10, 2025
Y'all, remember how ARM has a CPU instruction with JavaScript in the name (FJCVTZS)? Well, now they moved to whole CPUs with CSS in the name (https://newsroom.arm.com/news/announcing-lumex-css-platform-ai-era). I predict their next SoC will be called HTML something. You heard in here first!
Smarter, Faster, More Personal AI Delivered on Consumer Devices with Arm’s New Lumex CSS Platform, Driving Double-Digit Performance Gains

Arm introduces Lumex, its most advanced compute subsystem (CSS) platform for consumer devices, powering faster on-device AI, gaming, and real-time intelligence.

Arm Newsroom
Show threadDominik GrabiecSep 10, 2025
@aras I remember there being instructions to accelerate Java in certain ARM versions but not JavaScript.
Show threadAras PranckevičiusSep 10, 2025
@dominikg yeah, the Java thing (Jazelle) was entirely different thing. The instruction with "javascript in the name" is just float->int rounding towards zero, which is actually useful. Named because that matches what javascript does, I guess.
Show threadBartosz TaudulSep 10, 2025

@aras @dominikg BXJ: Branch to Java

Branch to WebAssembly when?

Show thread❀𝓪𝓵𝓬𝓮𝓪𖤐  
@wolfpld •acws #acws

Oh yes please
Inject #Webasm directly into my veins.

#ffmpeg and chiptune player in browser are such godsents.
Sep 10, 2025 at 9:47pmWeb