Square root
The sqrt
instructions, short for square root, are used to get the square root of a number.
Try it
(module
(import "console" "log" (func $log (param f32)))
(func $main
f32.const 2 ;; load a number onto the stack
f32.sqrt ;; calculate the square root
call $log ;; log the result
)
(start $main)
)
const url = "{%wasm-url%}";
await WebAssembly.instantiateStreaming(fetch(url), { console });
Syntax
wat
;; load a number onto the stack
f32.const 289
;; get the square root of 289
f32.sqrt
;; the top item on the stack will now be 17
Instruction | Binary opcode |
---|---|
f32.sqrt |
0x91 |
f64.sqrt |
0x9f |