最近
nearest 指令用于获取四舍五入到最接近整数的数值。
试一试
(module
(import "console" "log" (func $log (param f32)))
(func $main
f32.const 2.7 ;; load a number onto the stack
f32.nearest ;; round to the nearest integer
call $log ;; log the result
)
(start $main)
)
const url = "{%wasm-url%}";
await WebAssembly.instantiateStreaming(fetch(url), { console });
语法
wat
;; load a number onto the stack
f32.const -2.7
;; round to the nearest integer
f32.nearest
;; the top item on the stack will now be -3
| 指令 | 二进制操作码 |
|---|---|
f32.nearest |
0x90 |
f64.nearest |
0x9e |