TIL: Why ARM Has a JavaScript Instruction (notnotp.com)

submitted 1 day ago* (last edited 1 day ago) by CombatWombatEsq@lemmy.world to c/programming@programming.dev

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I know JavaScript is a very special boi but c’mon, you’re embarrassing me in front of the wizards.

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[-] arty@feddit.org -1 points 6 hours ago

Try interacting with anything that uses u64 and you’ll be a lot less happy!

I’m sorry you had to experience this, but in all my years of development I hadn’t.

…not actually quite as bad… While it’s UB for C, and it can return garbage. … the value it returns is 0x8000

0x8000 is garbage. Insane.

this post was submitted on 14 Jan 2026

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