blob: 3989046423aa6224f9fa874d40f3bfaafc2a2600 [file] [log] [blame] [raw]
"use strict";
(function()
{
function log(data)
{
var log_element = document.getElementById("log");
log_element.style.display = "block";
log_element.textContent += data + "\n";
log_element.scrollTop = 1e9;
}
// setImmediate shim for the browser
var next_tick, set_tick;
(function()
{
var fn,
host = location.protocol + "//" + location.host;
set_tick = function(f)
{
fn = f;
window.removeEventListener("message", tick_handler, false);
window.addEventListener("message", tick_handler, false);
};
next_tick = function()
{
window.postMessage(null, host);
};
function tick_handler(e)
{
if(e.origin === host)
{
fn();
}
}
})();
function dump_text(text)
{
var box = document.createElement("textarea");
box.appendChild(document.createTextNode(text));
document.body.appendChild(box);
}
function dump_file(ab, name)
{
var blob = new Blob([ab]),
a;
a = document.createElement("a");
a["download"] = name;
a.href = window.URL.createObjectURL(blob),
a.textContent = "Download " + name;
a.onclick = function() { a.parentNode.removeChild(a); };
a.dataset["downloadurl"] = ["application/octet-stream", a["download"], a.href].join(":");
$("runtime_infos").appendChild(a);
}
function set_title(text)
{
document.title = text + " - Virtual x86" + (DEBUG ? " - debug" : "");
}
function time2str(time)
{
if(time < 60)
{
return time + "s";
}
else if(time < 3600)
{
return (time / 60 | 0) + "m " + String.pad0(time % 60, 2) + "s";
}
else
{
return (time / 3600 | 0) + "h " +
String.pad0((time / 60 | 0) % 60, 2) + "m " +
String.pad0(time % 60, 2) + "s";
}
}
function make_dom(obj)
{
var result;
if(typeof obj === "string")
{
// create text node from string
result = document.createTextNode(obj);
}
else if(typeof obj.length === "number")
{
// create list of elements
result = document.createDocumentFragment();
for(var i = 0; i < obj.length; i++)
{
result.appendChild(make_dom(obj[i]));
}
}
else if(typeof obj === "object")
{
// create single element
if(obj.tag === undefined)
{
throw "`tag` property required";
}
result = document.createElement(obj.tag);
for(var property in obj)
{
switch(property)
{
case "children":
result.appendChild(make_dom(obj.children));
break;
default:
result[property] = obj[property];
}
}
}
else
{
throw "Invalid type: " + typeof obj;
}
return result;
}
/** @param {?=} progress */
function load_file(filename, done, progress)
{
var http = new XMLHttpRequest();
http.open("get", filename, true);
http.responseType = "arraybuffer";
http.onload = function(e)
{
if(http.readyState === 4)
{
if(http.status !== 200)
{
log("Loading the image `" + filename + "` failed");
}
else if(http.response)
{
done(http.response);
}
}
};
if(progress)
{
http.onprogress = function(e)
{
progress(e);
};
}
http.send(null);
}
/**
* Asynchronous access to ArrayBuffer, loading blocks lazily as needed.
* This is just a prototype and partly incomplete.
*
* @constructor
* @param {string} filename Name of the file to download parts
* from. Replaces %d with the block number (padded)
*/
function AsyncXHRBuffer(filename, block_size, size)
{
var block_count = size / block_size,
loaded_blocks,
padding_width;
dbg_assert(block_count === (block_count | 0));
loaded_blocks = Array(block_count);
padding_width = ("" + (block_count - 1)).length;
this.byteLength = size;
// warning: fn may be called synchronously or asynchronously
this.get = function(start, len, fn)
{
// TODO: Unaligned read
dbg_assert(start % block_size === 0);
dbg_assert(len % block_size === 0);
dbg_assert(len);
var blocks_to_load = len / block_size,
data,
loaded_count = 0,
start_block = start / block_size;
if(blocks_to_load > 1)
{
// copy blocks in this buffer if there is more than one
data = new Uint8Array(len);
}
for(var i = start_block; i < start_block + blocks_to_load; i++)
{
this.load_block(i, block_loaded);
}
function block_loaded(buffer, i)
{
var block = new Uint8Array(buffer);
loaded_count++;
if(blocks_to_load === 1)
{
data = block;
}
else
{
data.set(block, (i - start_block) * block_size);
}
if(loaded_count === blocks_to_load)
{
fn(data);
}
}
};
this.load_block = function(i, fn)
{
var cached_block = loaded_blocks[i];
if(cached_block === undefined)
{
var file = filename.replace("%d", String.pad0(i, padding_width));
load_file(file, function(buffer)
{
loaded_blocks[i] = buffer;
fn(buffer, i);
});
}
else
{
fn(cached_block, i);
}
};
this.get_buffer = function(fn)
{
// We must download all parts, unlikely a good idea for big files
if(size > 32 * 1024 * 1024)
{
dbg_log("Warning: Downloading all parts of a huge file. Will probably " +
"crash or never finish");
}
this.get(0, size, function(data)
{
return data.buffer;
});
};
this.set = function(start, slice, fn)
{
// Discard (we can't write to the server)
// TODO: Put data into cache
};
}
/**
* Synchronous access to File, loading blocks from the input type=file
* The whole file is loaded into memory during initialisation
*
* @constructor
*/
function SyncFileBuffer(file)
{
var PART_SIZE = 4 << 20,
ready = false,
me = this;
this.byteLength = file.size;
if(file.size > (1 << 30))
{
dbg_log("Warning: Allocating buffer of " + (file.size >> 20) + " MB ...");
}
var buffer = new ArrayBuffer(file.size),
pointer = 0,
filereader = new FileReader();
// Here: Read all parts sequentially
// Other option: Read all parts in parallel
filereader.onload = function(e)
{
new Uint8Array(buffer, pointer).set(new Uint8Array(e.target.result));
pointer += PART_SIZE;
//dbg_log(PART_SIZE + " bytes of file read");
next();
};
function next()
{
if(me.onprogress)
{
me.onprogress({
loaded: pointer,
total: file.size,
lengthComputable: true,
});
}
if(pointer < file.size)
{
filereader.readAsArrayBuffer(file.slice(pointer, Math.min(pointer + PART_SIZE, file.size)));
}
else
{
ready = true;
if(me.onload)
{
me.onload({
});
}
}
}
next();
this.get = function(start, len, fn)
{
if(ready)
{
dbg_assert(start + len <= buffer.byteLength);
fn(new Uint8Array(buffer, start, len));
}
else
{
throw "SyncFileBuffer: Wait for ready";
}
};
this.get_buffer = function(fn)
{
if(ready)
{
fn(buffer);
}
else
{
throw "SyncFileBuffer: Wait for ready";
}
};
this.set = function(start, slice, fn)
{
if(ready)
{
dbg_assert(start + slice.length <= buffer.byteLength);
new Uint8Array(buffer, start, slice.byteLength).set(slice);
fn();
}
else
{
throw "SyncFileBuffer: Wait for ready";
}
};
}
/**
* Asynchronous access to File, loading blocks from the input type=file
*
* @constructor
*/
function AsyncFileBuffer(file)
{
var filereader = new FileReader,
BLOCK_SIZE = 512;
this.byteLength = file.size;
// warning: fn may be called synchronously or asynchronously
this.get = function(start, len, fn)
{
dbg_assert(!(start % BLOCK_SIZE));
dbg_assert(!(len % BLOCK_SIZE));
filereader.onload = function(e)
{
fn(new Uint8Array(e.target.result));
};
filereader.readAsArrayBuffer(file.slice(start, start + len));
};
this.get_buffer = function(fn)
{
};
this.set = function(start, slice, fn)
{
};
}
function lock_mouse(elem)
{
var fn = elem["requestPointerLock"] ||
elem["mozRequestPointerLock"] ||
elem["webkitRequestPointerLock"];
if(fn)
{
fn.call(elem);
}
}
function chr_repeat(chr, count)
{
var result = "";
while(count-- > 0)
{
result += chr;
}
return result;
}
function show_progress(info, e)
{
var el = $("loading");
el.style.display = "block";
if(e.lengthComputable || (info.total && typeof e.loaded === "number"))
{
var per100 = e.loaded / (e.total || info.total) * 100 | 0;
per100 = Math.min(100, Math.max(0, per100));
el.textContent = info.msg + " " + per100 + "% [" +
chr_repeat("#", per100 >> 1) +
chr_repeat(" ", 50 - (per100 >> 1)) + "]";
}
else
{
if(!info.ticks)
info.ticks = 0;
el.textContent = info.msg + " " + chr_repeat(".", info.ticks++ % 50);
}
}
function $(id)
{
if(!document.getElementById(id))
console.log("Element with id `" + id + "` not found");
return document.getElementById(id);
}
window.onload = function()
{
if(!("responseType" in new XMLHttpRequest))
{
log("Your browser is not supported because it doesn't have XMLHttpRequest.responseType");
return;
}
var settings = {
load_devices: true
};
function load_local(file, type, cont)
{
set_title(file.name);
// SyncFileBuffer:
// - loads the whole disk image into memory, impossible for large files (more than 1GB)
// - can later serve get/set operations fast and synchronously
// - takes some time for first load, neglectable for small files (up to 100Mb)
//
// AsyncFileBuffer:
// - loads slices of the file asynchronously as requested
// - slower get/set
// - doesn't support writing yet
var loader = new SyncFileBuffer(file);
loader.onprogress = show_progress.bind(this, { msg: "Loading disk image into memory" });
loader.onload = function()
{
switch(type)
{
case "floppy":
settings.fda = loader;
break;
case "hd":
settings.hda = loader;
break;
case "cdrom":
settings.cdrom = loader;
break;
}
cont();
}
}
$("lock_mouse").onclick = function()
{
lock_mouse(document.body);
$("lock_mouse").blur();
};
var biosfile;
if(DEBUG)
{
biosfile = "seabios-debug.bin";
}
else
{
biosfile = "seabios.bin";
}
load_file("bios/" + biosfile, function(img)
{
settings.bios = img;
});
load_file("bios/vgabios.bin", function(img)
{
settings.vga_bios = img;
});
$("start_freedos").onclick = function()
{
load_file("images/freedos722.img", function(buffer)
{
settings.fda = new SyncBuffer(buffer);
set_title("FreeDOS");
init(settings);
}, show_progress.bind(this, { msg: "Downloading image", total: 737280 }));
$("start_freedos").blur();
$("boot_options").style.display = "none";
};
$("start_win101").onclick = function()
{
load_file("images/windows101.img", function(buffer)
{
settings.fda = new SyncBuffer(buffer);
set_title("Windows");
init(settings);
}, show_progress.bind(this, { msg: "Downloading image", total: 1474560 }));
$("start_win101").blur();
$("boot_options").style.display = "none";
};
$("start_linux").onclick = function()
{
load_file("images/linux.iso", function(buffer)
{
settings.cdrom = new SyncBuffer(buffer);
set_title("Linux");
init(settings);
}, show_progress.bind(this, { msg: "Downloading image", total: 5632000 }));
$("start_linux").blur();
$("boot_options").style.display = "none";
};
$("start_koli").onclick = function()
{
load_file("images/kolibri.img", function(buffer)
{
settings.fda = new SyncBuffer(buffer);
set_title("KolibriOS");
init(settings);
}, show_progress.bind(this, { msg: "Downloading image", total: 1474560 }));
$("start_koli").blur();
$("boot_options").style.display = "none";
};
$("start_bsd").onclick = function()
{
load_file("images/openbsd.img", function(buffer)
{
settings.fda = new SyncBuffer(buffer);
set_title("OpenBSD");
init(settings);
}, show_progress.bind(this, { msg: "Downloading image", total: 1474560 }));
$("start_bsd").blur();
$("boot_options").style.display = "none";
};
$("start_sol").onclick = function()
{
load_file("images/os8.dsk", function(buffer)
{
settings.fda = new SyncBuffer(buffer);
set_title("Sol OS");
init(settings);
}, show_progress.bind(this, { msg: "Downloading image", total: 1474560 }));
$("start_sol").blur();
$("boot_options").style.display = "none";
};
$("start_emulation").onclick = function()
{
$("boot_options").style.display = "none";
var images = [];
if($("floppy_image").files.length)
{
images.push({
file: $("floppy_image").files[0],
type: "floppy",
});
}
if($("cd_image").files.length)
{
images.push({
file: $("cd_image").files[0],
type: "cdrom",
});
}
if($("hd_image").files.length)
{
images.push({
file: $("hd_image").files[0],
type: "hd",
});
}
function cont()
{
if(images.length === 0)
{
init(settings);
}
else
{
var obj = images.pop();
load_local(obj.file, obj.type, cont);
}
}
cont();
};
if(DEBUG)
{
$("start_test").onclick = function()
{
return;
settings.fda = new AsyncXHRBuffer("images/fd/freedos.part%d.img", 512, 720 * 1024);
init(settings);
//settings.bios = settings.vga_bios = undefined;
//settings.linux = {};
////settings.linux.cmdline = "console=ttyS0 root=/dev/hda ro init=/sbin/init notsc=1 hdb=none"
//settings.linux.cmdline = "root=/dev/ram0 rw init=/sbin/init notsc=1";
//load_file("images/linux/vmlinux.bin", function(buffer)
//{
// settings.linux.vmlinux = buffer;
// load_file("images/linux/linuxstart.bin", function(buffer)
// {
// settings.linux.linuxstart = buffer;
// load_file("images/linux/root.bin", function(buffer)
// {
// settings.linux.root = buffer;
// init(settings);
// });
// });
//});
}
var log_levels = document.getElementById("log_levels"),
count = 0,
mask;
for(var i in dbg_names)
{
mask = +i;
if(mask == 1)
continue;
var name = dbg_names[mask].toLowerCase(),
input = document.createElement("input"),
label = document.createElement("label")
input.type = "checkbox";
label.htmlFor = input.id = "log_" + name;
if(LOG_LEVEL & mask)
{
input.checked = true;
}
input.mask = mask;
label.appendChild(input);
label.appendChild(document.createTextNode(name + " "));
log_levels.appendChild(label);
}
log_levels.onchange = function(e)
{
var target = e.target,
mask = target.mask;
if(target.checked)
{
LOG_LEVEL |= mask;
}
else
{
LOG_LEVEL &= ~mask;
}
};
}
};
// works in firefox and chromium
if(document.readyState === "complete")
{
window.onload();
}
// load_external("https://dl.dropbox.com/example/freedos.img.js");
function load_external(url)
{
window["loaded"] = function(bin_image)
{
var buffer = new ArrayBuffer(bin_image.length),
buffer_array = new Uint8Array(buffer);
for(var i = 0; i < bin_image.length; i++)
{
buffer_array[i] = bin_image.charCodeAt(i);
}
window["loaded"] = function() {
dbg_log("load_external: result loaded twice ?");
};
};
var script = document.createElement("script");
script.src = url;
document.body.appendChild(script);
}
function init(settings)
{
var envapi = {
set_tick: set_tick,
next_tick: next_tick,
log: log,
};
if(!settings.bios || !settings.vga_bios)
{
log("The BIOS has not been loaded - reload the page to try again.");
return;
}
if(typeof performance === "object" && performance.now)
{
var offset = Date.now() - performance.now();
envapi.microtime = function()
{
return offset + performance.now()
};
envapi.detailed_microtime = false;
}
else
{
envapi.microtime = Date.now;
envapi.detailed_microtime = false;
}
var have_serial = true;
var cpu = new v86(envapi),
screen_adapter = new ScreenAdapter();
$("boot_options").style.display = "none";
$("loading").style.display = "none";
$("runtime_options").style.display = "block";
$("runtime_infos").style.display = "block";
document.getElementsByClassName("phone_keyboard")[0].style.display = "block";
if($("news"))
{
$("news").style.display = "none";
}
if(DEBUG)
{
$("step").onclick = function()
{
debug.step();
}
$("run_until").onclick = function()
{
debug.run_until();
};
$("debugger").onclick = function()
{
debug.debugger();
};
$("dump_gdt").onclick = function()
{
debug.dump_gdt_ldt();
};
$("dump_idt").onclick = function()
{
debug.dump_idt();
};
$("dump_regs").onclick = function()
{
debug.dump_regs();
};
$("dump_pt").onclick = function()
{
debug.dump_page_directory();
};
$("dump_instructions").onclick = function()
{
debug.dump_instructions();
};
$("memory_dump").onclick = function()
{
dump_file(debug.get_memory_dump(), "memory.bin");
};
}
var running = true;
$("run").onclick = function()
{
if(running)
{
running_time += Date.now() - last_tick;
$("run").value = "Run";
cpu.stop();
}
else
{
$("run").value = "Pause";
cpu.run();
last_tick = Date.now();
}
running = !running;
$("run").blur();
};
var time = $("running_time"),
ips = $("speed"),
avg_ips = $("avg_speed"),
last_tick = Date.now(),
running_time = 0,
summed_ips = 0,
last_instr_counter = 0;
function update_info()
{
if(!running)
{
return;
}
var now = Date.now(),
last_ips = (cpu.instr_counter - last_instr_counter) / 1000 | 0;
summed_ips += last_ips
running_time += now - last_tick;
last_tick = now;
ips.textContent = last_ips;
avg_ips.textContent = summed_ips / running_time * 1000 | 0;
time.textContent = time2str(running_time / 1000 | 0);
last_instr_counter = cpu.instr_counter;
}
function update_other_info()
{
if(!running)
{
return;
}
var vga_stats = cpu.dev.vga.stats;
if(vga_stats.is_graphical)
{
$("info_vga_mode").textContent = "graphical";
$("info_res").textContent = vga_stats.res_x + "x" + vga_stats.res_y;
$("info_bpp").textContent = vga_stats.bpp;
}
else
{
$("info_vga_mode").textContent = "text";
$("info_res").textContent = "-";
$("info_bpp").textContent = "-";
}
if(settings.mouse_adapter)
{
$("info_mouse_enabled").textContent =
settings.mouse_adapter.enabled ? "Yes" : "No";
}
if(cpu.dev.hda)
{
var hda_stats = cpu.dev.hda.stats;
$("info_hda_sectors_read").textContent = hda_stats.sectors_read;
$("info_hda_bytes_read").textContent = hda_stats.bytes_read;
$("info_hda_sectors_written").textContent = hda_stats.sectors_written;
$("info_hda_bytes_written").textContent = hda_stats.bytes_written;
}
else
{
$("info_hda").style.display = "none";
}
if(cpu.dev.cdrom)
{
var cdrom_stats = cpu.dev.cdrom.stats;
$("info_cdrom_sectors_read").textContent = cdrom_stats.sectors_read;
$("info_cdrom_bytes_read").textContent = cdrom_stats.bytes_read;
}
else
{
$("info_cdrom").style.display = "none";
}
}
setInterval(update_info, 1000);
setInterval(update_other_info, 2500);
setTimeout(update_other_info, 100);
$("reset").onclick = function()
{
cpu.restart();
$("reset").blur();
};
// writable image types
var image_types = ["hda", "hdb", "fda", "fdb"];
for(var i = 0; i < image_types.length; i++)
{
var elem = $("get_" + image_types[i] + "_image");
if(settings[image_types[i]])
{
elem.onclick = (function(type)
{
var buffer = settings[type];
buffer.get_buffer(function(b)
{
dump_file(b, type + ".img");
});
this.blur();
}).bind(elem, image_types[i]);
}
else
{
elem.style.display = "none";
}
}
$("ctrlaltdel").onclick = function()
{
var ps2 = cpu.dev.ps2;
ps2.kbd_send_code(0x1D); // ctrl
ps2.kbd_send_code(0x38); // alt
ps2.kbd_send_code(0x53); // delete
// break codes
ps2.kbd_send_code(0x1D | 0x80);
ps2.kbd_send_code(0x38 | 0x80);
ps2.kbd_send_code(0x53 | 0x80);
$("ctrlaltdel").blur();
};
$("scale").onchange = function()
{
var n = parseFloat(this.value);
if(n || n > 0)
{
screen_adapter.set_scale(n, n);
}
else
{
this.value = "1";
}
};
$("fullscreen").onclick = function()
{
var elem = document.getElementById("screen_container"),
// bracket notation because otherwise they get renamed by closure compiler
fn = elem["requestFullScreen"] ||
elem["webkitRequestFullscreen"] ||
elem["mozRequestFullScreen"] ||
elem["msRequestFullScreen"];
if(fn)
{
fn.call(elem);
// This is necessary, because otherwise chromium keyboard doesn't work anymore.
// Might (but doesn't seem to) break something else
document.getElementsByClassName("phone_keyboard")[0].focus();
}
lock_mouse(elem);
};
$("screen_container").onclick = function()
{
document.getElementsByClassName("phone_keyboard")[0].focus();
};
$("take_screenshot").onclick = function()
{
screen_adapter.make_screenshot();
$("take_screenshot").blur();
};
// avoid warnings
settings.fdb = undefined;
settings.screen_adapter = screen_adapter;
settings.keyboard_adapter = new KeyboardAdapter();
settings.mouse_adapter = new MouseAdapter();
settings.boot_order = parseInt($("boot_order").value, 16);
var memory_size = parseInt($("memory_size").value, 10) * 1024 * 1024;
if(memory_size >= 16 * 1024 * 1024 && memory_size < 2048 * 1024 * 1024)
{
settings.memory_size = memory_size;
}
else
{
log("Invalid memory size - ignored.");
settings.memory_size = 32 * 1024 * 1024;
}
var video_memory_size = parseInt($("video_memory_size").value, 10) * 1024 * 1024;
if(video_memory_size > 64 * 1024 && video_memory_size < 2048 * 1024 * 1024)
{
settings.vga_memory_size = video_memory_size;
}
else
{
log("Invalid video memory size - ignored.");
settings.vga_memory_size = 8 * 1024 * 1024;
}
if(have_serial)
{
settings.serial_adapter = new SerialAdapter($("serial"));
$("serial").style.display = "block";
}
cpu.init(settings);
cpu.run();
}
})();