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Re:WebAssembly and Back Again: Fine-Grained Sandboxing in Fi... by the_duke on Monday December 06, 2021 @11:00AM (#29461323)
Webassembly is much more restricted than regular machine code.

It's a stack machine with a limited set of operations, no direct control over the stack/control flow and restricted access to memory.

It's way easier to compile this limited set of operations to assembly (or C) that is guaranteed to not do things it shouldn't.

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