Start a WASM folder

Author: rtoal

wasm/example.wasm

@@ -0,0 +1,16 @@
+(module
+  (import "env" "print"
+    (func $print (param f64)))
+  (import "env" "pow"
+    (func $pow (param f64) (param f64) (result f64)))
+
+  (func $prev (param $x f64) (result f64)
+    (local.get $x) (f64.const 1) (f64.sub)
+  )
+
+  (func (export "main")
+    (local $x f64) (f64.const 5) (local.set $x)
+    (local.get $x) (f64.const 21) (call $pow)
+    (call $prev) (call $print)
+  )
+)

wasm/example.wat

@@ -0,0 +1,9 @@
+import * as fs from "fs";
+
+const buffer = fs.readFileSync(process.argv[2]);
+const env = {
+  print: (x) => console.log(x),
+  pow: (x, y) => x ** y,
+};
+const wasmModule = await WebAssembly.instantiate(buffer, { env });
+wasmModule.instance.exports.main();