Demote

The demote instruction, is used to convert (demote) numbers of type f64 to type f32.

Try it

(module (import "console" "log" (func $log (param f32))) (func $main f64.const 10.5 ;; push an f64 onto the stack f32.demote_f64 ;; demote from f64 to f32 call $log ;; log the result ) (start $main) )

const url = "{%wasm-url%}"; await WebAssembly.instantiateStreaming(fetch(url), { console });

Syntax

wat

;; push an f64 onto the stack f64.const 10.5 ;; demote from f64 to f32 f32.demote_f64 ;; the top item on the stack will now be the value 10.5 of type f32

Instruction	Binary opcode
`f32.demote_f64`	`0xb6`