web-feature: Sign extension operators (WebAssembly)

baseline logo Widely available

Sign-extension operator instructions extend the width of 8-bit, 16-bit, and 32-bit values to 32-bit and 64-bit values.

Notes

Support data provided by: BCD logo

Know something we don't?

Is any of the above data outdated? Or do you want to add a new WebView to the list? Heads on to GitHub and edit the data file!

Not comfortable with GitHub? Send us an email.

Please help us keeping this data updated

This feature was last updated on November 10, 2025.