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@yurydelendik
Last active March 17, 2017 07:29
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
</head>
<body>
<script>
var memory;
var env = {
sys: {
print(ptr) {
let p = ptr;
while (memory[p]) p++;
console.log(String.fromCharCode(...memory.subarray(ptr, p)));
}
}
};
fetch('helloworld2.wasm')
.then(req => req.arrayBuffer())
.then(buf => WebAssembly.instantiate(buf, env))
.then(({instance}) => {
memory = new Uint8Array(instance.exports.memory.buffer);
instance.exports.main();
});
</script>
<h1>base64 helloworld2.wasm</h1>
<p>AGFzbQ0AAAABiICAgAACYAF/AGAAAAKNgICAAAEDc3lzBXByaW50AAADgoCAgAABAQWGgICAAAEByAHIAQeRgICAAAIGbWVtb3J5AgAEbWFpbgABCoyAgIAAAYaAgIAAAEEAEAALC5OAgIAAAQBBAAsNSGVsbG8sIHdvcmxkAA==</p>
<h1>wasm-dis helloworld2.wasm | tee helloworld2.wast</h1>
<pre>
(module
(memory (export "memory") 200 200)
(data (i32.const 0) "Hello, world\00")
(import $print "sys" "print" (param i32))
(func (export "main")
(call $print
(i32.const 0)
)
)
)
</pre>
</body>
</html>
@lin7sh
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lin7sh commented Mar 17, 2017

thanks for sharing. good wasm guide is very rare

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