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nodejs_state.js
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nodejs_state.js
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#!/usr/bin/env node
"use strict";
var fs = require("fs");
var V86 = require("../build/libv86.js").V86;
function readfile(path)
{
return new Uint8Array(fs.readFileSync(path)).buffer;
}
console.log("Use F2 to save the state and F3 to restore.");
var bios = readfile(__dirname + "/../bios/seabios.bin");
var linux = readfile(__dirname + "/../images/linux4.iso");
process.stdin.setRawMode(true);
process.stdin.resume();
process.stdin.setEncoding("utf8");
console.log("Now booting, please stand by ...");
var emulator = new V86({
bios: { buffer: bios },
cdrom: { buffer: linux },
autostart: true,
});
emulator.add_listener("serial0-output-byte", function(byte)
{
var chr = String.fromCharCode(byte);
if(chr <= "~")
{
process.stdout.write(chr);
}
});
var state;
process.stdin.on("data", async function(c)
{
if(c === "\u0003")
{
// ctrl c
emulator.stop();
process.stdin.pause();
}
else if(c === "\x1b\x4f\x51")
{
// f2
state = await emulator.save_state();
console.log("--- Saved ---");
}
else if(c === "\x1b\x4f\x52")
{
// f3
if(state)
{
console.log("--- Restored ---");
await emulator.restore_state(state);
}
}
else
{
emulator.serial0_send(c);
}
});