import/upload files into emulator #1172

rooootdev · 2024-10-20T19:03:37Z

how do i upload files into v86?
speciffically ms-dos

i tried:

document.getElementById("u").onchange = function(e) {
    var files = e.target.files;
    for (var i = 0; i < files.length; i++) {
        var reader = new FileReader();
        reader.onload = function(file) {
            return function(e) {
                var data = (new TextEncoder('UTF-8')).encode(e.target.result);
                emu.create_file("/" + file.name, data);
                console.log("uploaded " + file.name);
            };
        }(files[i]);
        reader.readAsText(files[i]);
    }
};

full code:

<!doctype html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <script src="lib/libv86.js"></script>
        <style>
            html, body { background-color: #000; overflow: hidden; }
            canvas { display: block; width: 100%; height: 100%; }
        </style>
    </head>
    <body>
        <div id="m_s">
            <div style="white-space: pre; font: 14px monospace"></div>
            <canvas style="display: none"></canvas>
            <input type="file" id="u" style="display:none">
        </div>

        <script>
            onload = function() {
                var emu = window.emu = new V86({
                    wasm_path: "lib/v86.wasm",
                    bios: { url: "bios/seabios.bin" },
                    vga_bios: { url: "bios/vgabios.bin" },
                    hda: {
                        url: "os/msdos.img",
                        size: 1 * 1024 * 1024 * 1024,
                        async: true
                    },
                    memory_size: 512 * 1024 * 1024,
                    screen_container: m_s,
                    autostart: true,
                });
            }

            document.addEventListener("contextmenu", function(event) {
                event.preventDefault();
                document.getElementById("u").click();
            });

            document.getElementById("u").onchange = function(e) {
                var files = e.target.files;
                for(var i = 0; i < files.length; i++) {
                    var reader = new FileReader();
                    reader.onload = function(file) {
                        return function(e) {
                            var data = (new TextEncoder('UTF-8')).encode(e.target.result);
                            emu.create_file("/user/" + file.name, data);
                            console.log("uploaded " + file.name);
                        };
                    }(files[i]);
                    reader.readAsText(files[i]);
                }
            };
        </script>
    </body>
</html>

i got this code from another issue but i believe it only works with 9p.
if you run it the console doesnt print any errors though

Any help is appreciated!

copy · 2024-10-20T19:37:39Z

MS-DOS doesn't have a 9p driver, so this won't work.

There isn't a general mechanism for sharing files with a MS-DOS VM. Here's an idea, but it's not implemented: #824

rooootdev · 2024-10-21T16:06:44Z

i see. thanks!

copy closed this as completed Oct 22, 2024

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

import/upload files into emulator #1172

import/upload files into emulator #1172

rooootdev commented Oct 20, 2024

copy commented Oct 20, 2024

rooootdev commented Oct 21, 2024

import/upload files into emulator #1172

import/upload files into emulator #1172

Comments

rooootdev commented Oct 20, 2024

copy commented Oct 20, 2024

rooootdev commented Oct 21, 2024