122 lines
2.7 KiB
HTML
122 lines
2.7 KiB
HTML
<!doctype html>
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<title>Lua interpreter</title>
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<script src="../build/libv86.js"></script>
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<script>
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"use strict";
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window.onload = function()
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{
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var emulator = new V86Starter({
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wasm_path: "../build/v86.wasm",
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memory_size: 32 * 1024 * 1024,
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vga_memory_size: 2 * 1024 * 1024,
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// Uncomment to see what's going on
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//screen_container: document.getElementById("screen_container"),
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bios: {
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url: "../bios/seabios.bin",
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},
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vga_bios: {
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url: "../bios/vgabios.bin",
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},
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bzimage: {
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url: "../images/buildroot-bzimage.bin",
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},
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autostart: true,
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disable_keyboard: true,
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disable_mouse: true,
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});
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var data = "";
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var do_output = false;
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emulator.add_listener("serial0-output-char", function(char)
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{
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if(char !== "\r")
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{
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data += char;
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}
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if(do_output)
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{
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document.getElementById("result").textContent += char;
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}
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if(data.endsWith("~% "))
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{
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console.log("Now ready");
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document.getElementById("status").textContent = "Ready.\n";
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document.getElementById("run").disabled = false;
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do_output = false;
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}
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});
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document.getElementById("source").onkeydown = function(e)
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{
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if(e.which == 13 && e.ctrlKey)
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{
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document.getElementById("run").onclick();
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}
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};
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document.getElementById("run").onclick = function()
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{
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var code = document.getElementById("source").value;
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emulator.serial0_send("lua -e " + bashEscape(code) + "\n");
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document.getElementById("result").textContent = "";
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document.getElementById("status").textContent = "Running ...\n";
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this.disabled = true;
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do_output = true;
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};
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};
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// https://gist.github.com/creationix/2502704
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// Implement bash string escaping.
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function bashEscape(arg)
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{
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arg = arg.replace(/\t+/g, "");
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return "'" + arg.replace(/'+/g, function (val) {
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return "'" + val.replace(/'/g, "\\'") + "'";
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}) + "'";
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}
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</script>
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<textarea id=source rows=20 cols=80>
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k = 1
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x = 0
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while k < 1000 do
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x = x + 1 / (k * k)
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k = k + 2
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end
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print(math.sqrt(x*8))
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function factorial(n)
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if n == 0 then
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return 1
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else
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return n * factorial(n - 1)
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end
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end
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print("factorial(10):", factorial(10))
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</textarea>
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<button disabled id=run>run (ctrl-enter)</button>
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<br>
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<hr>
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<pre id=status>Wait for boot ...</pre>
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<pre id=result></pre>
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<hr>
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<div id="screen_container">
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<div style="white-space: pre; font: 14px monospace; line-height: 14px"></div>
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<canvas style="display: none"></canvas>
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</div>
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