promote: Wasm Text-Instruktion
Die promote-Instruktion wird verwendet, um Zahlen des Typs f32 in den Typ f64 zu konvertieren (promoten).
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(module (import "console" "log" (func $log (param f64))) (func $main f32.const 10.5 ;; push an f32 onto the stack f64.promote_f32 ;; promote from f32 to f64 call $log ;; log the result ) (start $main) ) const url = "{%wasm-url%}"; await WebAssembly.instantiateStreaming(fetch(url), { console }); Syntax
wat
;; push an f32 onto the stack f32.const 10.5 ;; promote from f32 to f64 f64.promote_f32 ;; the top item on the stack will now be the value 10.5 of type f64 | Instruktion | Binärer Opcode |
|---|---|
f64.promote_f32 | 0xbb |