ffmpeg-webm.js

var __ffmpegjs_utf8ToStr;

function __ffmpegjs(__ffmpegjs_opts) {
  __ffmpegjs_utf8ToStr = UTF8ArrayToString;
  __ffmpegjs_opts = __ffmpegjs_opts || {};
  var __ffmpegjs_return;
  var Module = {};

  function __ffmpegjs_toU8(data) {
    if (Array.isArray(data) || data instanceof ArrayBuffer) {
      data = new Uint8Array(data);
    } else if (!data) {
      // `null` for empty files.
      data = new Uint8Array(0);
    } else if (!(data instanceof Uint8Array)) {
      // Avoid unnecessary copying.
      data = new Uint8Array(data.buffer);
    }
    return data;
  }

  Object.keys(__ffmpegjs_opts).forEach(function(key) {
    if (key != "mounts" && key != "MEMFS") {
      Module[key] = __ffmpegjs_opts[key];
    }
  });

  // XXX(Kagami): Prevent Emscripten to call `process.exit` at the end of
  // execution on Node.
  // There is no longer `NODE_STDOUT_FLUSH_WORKAROUND` and it seems to
  // be the best way to accomplish that.
  Module["preInit"] = function() {
    if (ENVIRONMENT_IS_NODE) {
      exit = Module["exit"] = function(status) {
        ABORT = true;
        EXITSTATUS = status;
        STACKTOP = initialStackTop;
        exitRuntime();
        if (Module["onExit"]) Module["onExit"](status);
        throw new ExitStatus(status);
      };
    }
  };

  Module["preRun"] = function() {
    (__ffmpegjs_opts["mounts"] || []).forEach(function(mount) {
      var fs = FS.filesystems[mount["type"]];
      if (!fs) {
        throw new Error("Bad mount type");
      }
      var mountpoint = mount["mountpoint"];
      // NOTE(Kagami): Subdirs are not allowed in the paths to simplify
      // things and avoid ".." escapes.
      if (!mountpoint.match(/^\/[^\/]+$/) ||
          mountpoint === "/." ||
          mountpoint === "/.." ||
          mountpoint === "/tmp" ||
          mountpoint === "/home" ||
          mountpoint === "/dev" ||
          mountpoint === "/work") {
        throw new Error("Bad mount point");
      }
      FS.mkdir(mountpoint);
      FS.mount(fs, mount["opts"], mountpoint);
    });

    FS.mkdir("/work");
    FS.chdir("/work");

    (__ffmpegjs_opts["MEMFS"] || []).forEach(function(file) {
      if (file["name"].match(/\//)) {
        throw new Error("Bad file name");
      }
      var fd = FS.open(file["name"], "w+");
      var data = __ffmpegjs_toU8(file["data"]);
      FS.write(fd, data, 0, data.length);
      FS.close(fd);
    });
  };

  Module["postRun"] = function() {
    // NOTE(Kagami): Search for files only in working directory, one
    // level depth. Since FFmpeg shouldn't normally create
    // subdirectories, it should be enough.
    function listFiles(dir) {
      var contents = FS.lookupPath(dir).node.contents;
      var filenames = Object.keys(contents);
      // Fix for possible file with "__proto__" name. See
      // <https://github.com/kripken/emscripten/issues/3663> for
      // details.
      if (contents.__proto__ && contents.__proto__.name === "__proto__") {
        filenames.push("__proto__");
      }
      return filenames.map(function(filename) {
        return contents[filename];
      });
    }

    var inFiles = Object.create(null);
    (__ffmpegjs_opts["MEMFS"] || []).forEach(function(file) {
      inFiles[file.name] = null;
    });
    var outFiles = listFiles("/work").filter(function(file) {
      return !(file.name in inFiles);
    }).map(function(file) {
      var data = __ffmpegjs_toU8(file.contents);
      return {"name": file.name, "data": data};
    });
    __ffmpegjs_return = {"MEMFS": outFiles};
  };

// The Module object: Our interface to the outside world. We import
// and export values on it, and do the work to get that through
// closure compiler if necessary. There are various ways Module can be used:
// 1. Not defined. We create it here
// 2. A function parameter, function(Module) { ..generated code.. }
// 3. pre-run appended it, var Module = {}; ..generated code..
// 4. External script tag defines var Module.
// We need to do an eval in order to handle the closure compiler
// case, where this code here is minified but Module was defined
// elsewhere (e.g. case 4 above). We also need to check if Module
// already exists (e.g. case 3 above).
// Note that if you want to run closure, and also to use Module
// after the generated code, you will need to define   var Module = {};
// before the code. Then that object will be used in the code, and you
// can continue to use Module afterwards as well.
var Module;
if (!Module) Module = (typeof Module !== 'undefined' ? Module : null) || {};

// Sometimes an existing Module object exists with properties
// meant to overwrite the default module functionality. Here
// we collect those properties and reapply _after_ we configure
// the current environment's defaults to avoid having to be so
// defensive during initialization.
var moduleOverrides = {};
for (var key in Module) {
  if (Module.hasOwnProperty(key)) {
    moduleOverrides[key] = Module[key];
  }
}

// The environment setup code below is customized to use Module.
// *** Environment setup code ***
var ENVIRONMENT_IS_WEB = false;
var ENVIRONMENT_IS_WORKER = false;
var ENVIRONMENT_IS_NODE = false;
var ENVIRONMENT_IS_SHELL = false;

// Three configurations we can be running in:
// 1) We could be the application main() thread running in the main JS UI thread. (ENVIRONMENT_IS_WORKER == false and ENVIRONMENT_IS_PTHREAD == false)
// 2) We could be the application main() thread proxied to worker. (with Emscripten -s PROXY_TO_WORKER=1) (ENVIRONMENT_IS_WORKER == true, ENVIRONMENT_IS_PTHREAD == false)
// 3) We could be an application pthread running in a worker. (ENVIRONMENT_IS_WORKER == true and ENVIRONMENT_IS_PTHREAD == true)

if (Module['ENVIRONMENT']) {
  if (Module['ENVIRONMENT'] === 'WEB') {
    ENVIRONMENT_IS_WEB = true;
  } else if (Module['ENVIRONMENT'] === 'WORKER') {
    ENVIRONMENT_IS_WORKER = true;
  } else if (Module['ENVIRONMENT'] === 'NODE') {
    ENVIRONMENT_IS_NODE = true;
  } else if (Module['ENVIRONMENT'] === 'SHELL') {
    ENVIRONMENT_IS_SHELL = true;
  } else {
    throw new Error('The provided Module[\'ENVIRONMENT\'] value is not valid. It must be one of: WEB|WORKER|NODE|SHELL.');
  }
} else {
  ENVIRONMENT_IS_WEB = typeof window === 'object';
  ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';
  ENVIRONMENT_IS_NODE = typeof process === 'object' && typeof require === 'function' && !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_WORKER;
  ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
}


if (ENVIRONMENT_IS_NODE) {
  // Expose functionality in the same simple way that the shells work
  // Note that we pollute the global namespace here, otherwise we break in node
  if (!Module['print']) Module['print'] = console.log;
  if (!Module['printErr']) Module['printErr'] = console.warn;

  var nodeFS;
  var nodePath;

  Module['read'] = function shell_read(filename, binary) {
    if (!nodeFS) nodeFS = require('fs');
    if (!nodePath) nodePath = require('path');
    filename = nodePath['normalize'](filename);
    var ret = nodeFS['readFileSync'](filename);
    return binary ? ret : ret.toString();
  };

  Module['readBinary'] = function readBinary(filename) {
    var ret = Module['read'](filename, true);
    if (!ret.buffer) {
      ret = new Uint8Array(ret);
    }
    assert(ret.buffer);
    return ret;
  };

  Module['load'] = function load(f) {
    globalEval(read(f));
  };

  if (!Module['thisProgram']) {
    if (process['argv'].length > 1) {
      Module['thisProgram'] = process['argv'][1].replace(/\\/g, '/');
    } else {
      Module['thisProgram'] = 'unknown-program';
    }
  }

  Module['arguments'] = process['argv'].slice(2);

  if (typeof module !== 'undefined') {
    module['exports'] = Module;
  }

  process['on']('uncaughtException', function(ex) {
    // suppress ExitStatus exceptions from showing an error
    if (!(ex instanceof ExitStatus)) {
      throw ex;
    }
  });

  Module['inspect'] = function () { return '[Emscripten Module object]'; };
}
else if (ENVIRONMENT_IS_SHELL) {
  if (!Module['print']) Module['print'] = print;
  if (typeof printErr != 'undefined') Module['printErr'] = printErr; // not present in v8 or older sm

  if (typeof read != 'undefined') {
    Module['read'] = read;
  } else {
    Module['read'] = function shell_read() { throw 'no read() available' };
  }

  Module['readBinary'] = function readBinary(f) {
    if (typeof readbuffer === 'function') {
      return new Uint8Array(readbuffer(f));
    }
    var data = read(f, 'binary');
    assert(typeof data === 'object');
    return data;
  };

  if (typeof scriptArgs != 'undefined') {
    Module['arguments'] = scriptArgs;
  } else if (typeof arguments != 'undefined') {
    Module['arguments'] = arguments;
  }

  if (typeof quit === 'function') {
    Module['quit'] = function(status, toThrow) {
      quit(status);
    }
  }

}
else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
  Module['read'] = function shell_read(url) {
    var xhr = new XMLHttpRequest();
    xhr.open('GET', url, false);
    xhr.send(null);
    return xhr.responseText;
  };

  if (ENVIRONMENT_IS_WORKER) {
    Module['readBinary'] = function readBinary(url) {
      var xhr = new XMLHttpRequest();
      xhr.open('GET', url, false);
      xhr.responseType = 'arraybuffer';
      xhr.send(null);
      return new Uint8Array(xhr.response);
    };
  }

  Module['readAsync'] = function readAsync(url, onload, onerror) {
    var xhr = new XMLHttpRequest();
    xhr.open('GET', url, true);
    xhr.responseType = 'arraybuffer';
    xhr.onload = function xhr_onload() {
      if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
        onload(xhr.response);
      } else {
        onerror();
      }
    };
    xhr.onerror = onerror;
    xhr.send(null);
  };

  if (typeof arguments != 'undefined') {
    Module['arguments'] = arguments;
  }

  if (typeof console !== 'undefined') {
    if (!Module['print']) Module['print'] = function shell_print(x) {
      console.log(x);
    };
    if (!Module['printErr']) Module['printErr'] = function shell_printErr(x) {
      console.warn(x);
    };
  } else {
    // Probably a worker, and without console.log. We can do very little here...
    var TRY_USE_DUMP = false;
    if (!Module['print']) Module['print'] = (TRY_USE_DUMP && (typeof(dump) !== "undefined") ? (function(x) {
      dump(x);
    }) : (function(x) {
      // self.postMessage(x); // enable this if you want stdout to be sent as messages
    }));
  }

  if (ENVIRONMENT_IS_WORKER) {
    Module['load'] = importScripts;
  }

  if (typeof Module['setWindowTitle'] === 'undefined') {
    Module['setWindowTitle'] = function(title) { document.title = title };
  }
}
else {
  // Unreachable because SHELL is dependant on the others
  throw 'Unknown runtime environment. Where are we?';
}

function globalEval(x) {
  eval.call(null, x);
}
if (!Module['load'] && Module['read']) {
  Module['load'] = function load(f) {
    globalEval(Module['read'](f));
  };
}
if (!Module['print']) {
  Module['print'] = function(){};
}
if (!Module['printErr']) {
  Module['printErr'] = Module['print'];
}
if (!Module['arguments']) {
  Module['arguments'] = [];
}
if (!Module['thisProgram']) {
  Module['thisProgram'] = './this.program';
}
if (!Module['quit']) {
  Module['quit'] = function(status, toThrow) {
    throw toThrow;
  }
}

// *** Environment setup code ***

// Closure helpers
Module.print = Module['print'];
Module.printErr = Module['printErr'];

// Callbacks
Module['preRun'] = [];
Module['postRun'] = [];

// Merge back in the overrides
for (var key in moduleOverrides) {
  if (moduleOverrides.hasOwnProperty(key)) {
    Module[key] = moduleOverrides[key];
  }
}
// Free the object hierarchy contained in the overrides, this lets the GC
// reclaim data used e.g. in memoryInitializerRequest, which is a large typed array.
moduleOverrides = undefined;



// {{PREAMBLE_ADDITIONS}}

// === Preamble library stuff ===

// Documentation for the public APIs defined in this file must be updated in:
//    site/source/docs/api_reference/preamble.js.rst
// A prebuilt local version of the documentation is available at:
//    site/build/text/docs/api_reference/preamble.js.txt
// You can also build docs locally as HTML or other formats in site/
// An online HTML version (which may be of a different version of Emscripten)
//    is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html

//========================================
// Runtime code shared with compiler
//========================================

var Runtime = {
  setTempRet0: function (value) {
    tempRet0 = value;
    return value;
  },
  getTempRet0: function () {
    return tempRet0;
  },
  stackSave: function () {
    return STACKTOP;
  },
  stackRestore: function (stackTop) {
    STACKTOP = stackTop;
  },
  getNativeTypeSize: function (type) {
    switch (type) {
      case 'i1': case 'i8': return 1;
      case 'i16': return 2;
      case 'i32': return 4;
      case 'i64': return 8;
      case 'float': return 4;
      case 'double': return 8;
      default: {
        if (type[type.length-1] === '*') {
          return Runtime.QUANTUM_SIZE; // A pointer
        } else if (type[0] === 'i') {
          var bits = parseInt(type.substr(1));
          assert(bits % 8 === 0);
          return bits/8;
        } else {
          return 0;
        }
      }
    }
  },
  getNativeFieldSize: function (type) {
    return Math.max(Runtime.getNativeTypeSize(type), Runtime.QUANTUM_SIZE);
  },
  STACK_ALIGN: 16,
  prepVararg: function (ptr, type) {
    if (type === 'double' || type === 'i64') {
      // move so the load is aligned
      if (ptr & 7) {
        assert((ptr & 7) === 4);
        ptr += 4;
      }
    } else {
      assert((ptr & 3) === 0);
    }
    return ptr;
  },
  getAlignSize: function (type, size, vararg) {
    // we align i64s and doubles on 64-bit boundaries, unlike x86
    if (!vararg && (type == 'i64' || type == 'double')) return 8;
    if (!type) return Math.min(size, 8); // align structures internally to 64 bits
    return Math.min(size || (type ? Runtime.getNativeFieldSize(type) : 0), Runtime.QUANTUM_SIZE);
  },
  dynCall: function (sig, ptr, args) {
    if (args && args.length) {
      assert(args.length == sig.length-1);
      assert(('dynCall_' + sig) in Module, 'bad function pointer type - no table for sig \'' + sig + '\'');
      return Module['dynCall_' + sig].apply(null, [ptr].concat(args));
    } else {
      assert(sig.length == 1);
      assert(('dynCall_' + sig) in Module, 'bad function pointer type - no table for sig \'' + sig + '\'');
      return Module['dynCall_' + sig].call(null, ptr);
    }
  },
  functionPointers: [],
  addFunction: function (func) {
    for (var i = 0; i < Runtime.functionPointers.length; i++) {
      if (!Runtime.functionPointers[i]) {
        Runtime.functionPointers[i] = func;
        return 2*(1 + i);
      }
    }
    throw 'Finished up all reserved function pointers. Use a higher value for RESERVED_FUNCTION_POINTERS.';
  },
  removeFunction: function (index) {
    Runtime.functionPointers[(index-2)/2] = null;
  },
  warnOnce: function (text) {
    if (!Runtime.warnOnce.shown) Runtime.warnOnce.shown = {};
    if (!Runtime.warnOnce.shown[text]) {
      Runtime.warnOnce.shown[text] = 1;
      Module.printErr(text);
    }
  },
  funcWrappers: {},
  getFuncWrapper: function (func, sig) {
    assert(sig);
    if (!Runtime.funcWrappers[sig]) {
      Runtime.funcWrappers[sig] = {};
    }
    var sigCache = Runtime.funcWrappers[sig];
    if (!sigCache[func]) {
      // optimize away arguments usage in common cases
      if (sig.length === 1) {
        sigCache[func] = function dynCall_wrapper() {
          return Runtime.dynCall(sig, func);
        };
      } else if (sig.length === 2) {
        sigCache[func] = function dynCall_wrapper(arg) {
          return Runtime.dynCall(sig, func, [arg]);
        };
      } else {
        // general case
        sigCache[func] = function dynCall_wrapper() {
          return Runtime.dynCall(sig, func, Array.prototype.slice.call(arguments));
        };
      }
    }
    return sigCache[func];
  },
  getCompilerSetting: function (name) {
    throw 'You must build with -s RETAIN_COMPILER_SETTINGS=1 for Runtime.getCompilerSetting or emscripten_get_compiler_setting to work';
  },
  stackAlloc: function (size) { var ret = STACKTOP;STACKTOP = (STACKTOP + size)|0;STACKTOP = (((STACKTOP)+15)&-16);(assert((((STACKTOP|0) < (STACK_MAX|0))|0))|0); return ret; },
  staticAlloc: function (size) { var ret = STATICTOP;STATICTOP = (STATICTOP + (assert(!staticSealed),size))|0;STATICTOP = (((STATICTOP)+15)&-16); return ret; },
  dynamicAlloc: function (size) { assert(DYNAMICTOP_PTR);var ret = HEAP32[DYNAMICTOP_PTR>>2];var end = (((ret + size + 15)|0) & -16);HEAP32[DYNAMICTOP_PTR>>2] = end;if (end >= TOTAL_MEMORY) {var success = enlargeMemory();if (!success) {HEAP32[DYNAMICTOP_PTR>>2] = ret;return 0;}}return ret;},
  alignMemory: function (size,quantum) { var ret = size = Math.ceil((size)/(quantum ? quantum : 16))*(quantum ? quantum : 16); return ret; },
  makeBigInt: function (low,high,unsigned) { var ret = (unsigned ? ((+((low>>>0)))+((+((high>>>0)))*(+4294967296))) : ((+((low>>>0)))+((+((high|0)))*(+4294967296)))); return ret; },
  GLOBAL_BASE: 1024,
  QUANTUM_SIZE: 4,
  __dummy__: 0
}



Module["Runtime"] = Runtime;



//========================================
// Runtime essentials
//========================================

var ABORT = 0; // whether we are quitting the application. no code should run after this. set in exit() and abort()
var EXITSTATUS = 0;

/** @type {function(*, string=)} */
function assert(condition, text) {
  if (!condition) {
    abort('Assertion failed: ' + text);
  }
}

var globalScope = this;

// Returns the C function with a specified identifier (for C++, you need to do manual name mangling)
function getCFunc(ident) {
  var func = Module['_' + ident]; // closure exported function
  if (!func) {
    try { func = eval('_' + ident); } catch(e) {}
  }
  assert(func, 'Cannot call unknown function ' + ident + ' (perhaps LLVM optimizations or closure removed it?)');
  return func;
}

var cwrap, ccall;
(function(){
  var JSfuncs = {
    // Helpers for cwrap -- it can't refer to Runtime directly because it might
    // be renamed by closure, instead it calls JSfuncs['stackSave'].body to find
    // out what the minified function name is.
    'stackSave': function() {
      Runtime.stackSave()
    },
    'stackRestore': function() {
      Runtime.stackRestore()
    },
    // type conversion from js to c
    'arrayToC' : function(arr) {
      var ret = Runtime.stackAlloc(arr.length);
      writeArrayToMemory(arr, ret);
      return ret;
    },
    'stringToC' : function(str) {
      var ret = 0;
      if (str !== null && str !== undefined && str !== 0) { // null string
        // at most 4 bytes per UTF-8 code point, +1 for the trailing '\0'
        var len = (str.length << 2) + 1;
        ret = Runtime.stackAlloc(len);
        stringToUTF8(str, ret, len);
      }
      return ret;
    }
  };
  // For fast lookup of conversion functions
  var toC = {'string' : JSfuncs['stringToC'], 'array' : JSfuncs['arrayToC']};

  // C calling interface.
  ccall = function ccallFunc(ident, returnType, argTypes, args, opts) {
    var func = getCFunc(ident);
    var cArgs = [];
    var stack = 0;
    assert(returnType !== 'array', 'Return type should not be "array".');
    if (args) {
      for (var i = 0; i < args.length; i++) {
        var converter = toC[argTypes[i]];
        if (converter) {
          if (stack === 0) stack = Runtime.stackSave();
          cArgs[i] = converter(args[i]);
        } else {
          cArgs[i] = args[i];
        }
      }
    }
    var ret = func.apply(null, cArgs);
    if ((!opts || !opts.async) && typeof EmterpreterAsync === 'object') {
      assert(!EmterpreterAsync.state, 'cannot start async op with normal JS calling ccall');
    }
    if (opts && opts.async) assert(!returnType, 'async ccalls cannot return values');
    if (returnType === 'string') ret = Pointer_stringify(ret);
    if (stack !== 0) {
      if (opts && opts.async) {
        EmterpreterAsync.asyncFinalizers.push(function() {
          Runtime.stackRestore(stack);
        });
        return;
      }
      Runtime.stackRestore(stack);
    }
    return ret;
  }

  var sourceRegex = /^function\s*[a-zA-Z$_0-9]*\s*\(([^)]*)\)\s*{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?}$/;
  function parseJSFunc(jsfunc) {
    // Match the body and the return value of a javascript function source
    var parsed = jsfunc.toString().match(sourceRegex).slice(1);
    return {arguments : parsed[0], body : parsed[1], returnValue: parsed[2]}
  }

  // sources of useful functions. we create this lazily as it can trigger a source decompression on this entire file
  var JSsource = null;
  function ensureJSsource() {
    if (!JSsource) {
      JSsource = {};
      for (var fun in JSfuncs) {
        if (JSfuncs.hasOwnProperty(fun)) {
          // Elements of toCsource are arrays of three items:
          // the code, and the return value
          JSsource[fun] = parseJSFunc(JSfuncs[fun]);
        }
      }
    }
  }

  cwrap = function cwrap(ident, returnType, argTypes) {
    argTypes = argTypes || [];
    var cfunc = getCFunc(ident);
    // When the function takes numbers and returns a number, we can just return
    // the original function
    var numericArgs = argTypes.every(function(type){ return type === 'number'});
    var numericRet = (returnType !== 'string');
    if ( numericRet && numericArgs) {
      return cfunc;
    }
    // Creation of the arguments list (["$1","$2",...,"$nargs"])
    var argNames = argTypes.map(function(x,i){return '$'+i});
    var funcstr = "(function(" + argNames.join(',') + ") {";
    var nargs = argTypes.length;
    if (!numericArgs) {
      // Generate the code needed to convert the arguments from javascript
      // values to pointers
      ensureJSsource();
      funcstr += 'var stack = ' + JSsource['stackSave'].body + ';';
      for (var i = 0; i < nargs; i++) {
        var arg = argNames[i], type = argTypes[i];
        if (type === 'number') continue;
        var convertCode = JSsource[type + 'ToC']; // [code, return]
        funcstr += 'var ' + convertCode.arguments + ' = ' + arg + ';';
        funcstr += convertCode.body + ';';
        funcstr += arg + '=(' + convertCode.returnValue + ');';
      }
    }

    // When the code is compressed, the name of cfunc is not literally 'cfunc' anymore
    var cfuncname = parseJSFunc(function(){return cfunc}).returnValue;
    // Call the function
    funcstr += 'var ret = ' + cfuncname + '(' + argNames.join(',') + ');';
    if (!numericRet) { // Return type can only by 'string' or 'number'
      // Convert the result to a string
      var strgfy = parseJSFunc(function(){return Pointer_stringify}).returnValue;
      funcstr += 'ret = ' + strgfy + '(ret);';
    }
    funcstr += "if (typeof EmterpreterAsync === 'object') { assert(!EmterpreterAsync.state, 'cannot start async op with normal JS calling cwrap') }";
    if (!numericArgs) {
      // If we had a stack, restore it
      ensureJSsource();
      funcstr += JSsource['stackRestore'].body.replace('()', '(stack)') + ';';
    }
    funcstr += 'return ret})';
    return eval(funcstr);
  };
})();
Module["ccall"] = ccall;
Module["cwrap"] = cwrap;

/** @type {function(number, number, string, boolean=)} */
function setValue(ptr, value, type, noSafe) {
  type = type || 'i8';
  if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
    switch(type) {
      case 'i1': HEAP8[((ptr)>>0)]=value; break;
      case 'i8': HEAP8[((ptr)>>0)]=value; break;
      case 'i16': HEAP16[((ptr)>>1)]=value; break;
      case 'i32': HEAP32[((ptr)>>2)]=value; break;
      case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math_abs(tempDouble))) >= (+1) ? (tempDouble > (+0) ? ((Math_min((+(Math_floor((tempDouble)/(+4294967296)))), (+4294967295)))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/(+4294967296))))))>>>0) : 0)],HEAP32[((ptr)>>2)]=tempI64[0],HEAP32[(((ptr)+(4))>>2)]=tempI64[1]); break;
      case 'float': HEAPF32[((ptr)>>2)]=value; break;
      case 'double': HEAPF64[((ptr)>>3)]=value; break;
      default: abort('invalid type for setValue: ' + type);
    }
}
Module["setValue"] = setValue;

/** @type {function(number, string, boolean=)} */
function getValue(ptr, type, noSafe) {
  type = type || 'i8';
  if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
    switch(type) {
      case 'i1': return HEAP8[((ptr)>>0)];
      case 'i8': return HEAP8[((ptr)>>0)];
      case 'i16': return HEAP16[((ptr)>>1)];
      case 'i32': return HEAP32[((ptr)>>2)];
      case 'i64': return HEAP32[((ptr)>>2)];
      case 'float': return HEAPF32[((ptr)>>2)];
      case 'double': return HEAPF64[((ptr)>>3)];
      default: abort('invalid type for setValue: ' + type);
    }
  return null;
}
Module["getValue"] = getValue;

var ALLOC_NORMAL = 0; // Tries to use _malloc()
var ALLOC_STACK = 1; // Lives for the duration of the current function call
var ALLOC_STATIC = 2; // Cannot be freed
var ALLOC_DYNAMIC = 3; // Cannot be freed except through sbrk
var ALLOC_NONE = 4; // Do not allocate
Module["ALLOC_NORMAL"] = ALLOC_NORMAL;
Module["ALLOC_STACK"] = ALLOC_STACK;
Module["ALLOC_STATIC"] = ALLOC_STATIC;
Module["ALLOC_DYNAMIC"] = ALLOC_DYNAMIC;
Module["ALLOC_NONE"] = ALLOC_NONE;

// allocate(): This is for internal use. You can use it yourself as well, but the interface
//             is a little tricky (see docs right below). The reason is that it is optimized
//             for multiple syntaxes to save space in generated code. So you should
//             normally not use allocate(), and instead allocate memory using _malloc(),
//             initialize it with setValue(), and so forth.
// @slab: An array of data, or a number. If a number, then the size of the block to allocate,
//        in *bytes* (note that this is sometimes confusing: the next parameter does not
//        affect this!)
// @types: Either an array of types, one for each byte (or 0 if no type at that position),
//         or a single type which is used for the entire block. This only matters if there
//         is initial data - if @slab is a number, then this does not matter at all and is
//         ignored.
// @allocator: How to allocate memory, see ALLOC_*
/** @type {function((TypedArray|Array<number>|number), string, number, number=)} */
function allocate(slab, types, allocator, ptr) {
  var zeroinit, size;
  if (typeof slab === 'number') {
    zeroinit = true;
    size = slab;
  } else {
    zeroinit = false;
    size = slab.length;
  }

  var singleType = typeof types === 'string' ? types : null;

  var ret;
  if (allocator == ALLOC_NONE) {
    ret = ptr;
  } else {
    ret = [typeof _malloc === 'function' ? _malloc : Runtime.staticAlloc, Runtime.stackAlloc, Runtime.staticAlloc, Runtime.dynamicAlloc][allocator === undefined ? ALLOC_STATIC : allocator](Math.max(size, singleType ? 1 : types.length));
  }

  if (zeroinit) {
    var ptr = ret, stop;
    assert((ret & 3) == 0);
    stop = ret + (size & ~3);
    for (; ptr < stop; ptr += 4) {
      HEAP32[((ptr)>>2)]=0;
    }
    stop = ret + size;
    while (ptr < stop) {
      HEAP8[((ptr++)>>0)]=0;
    }
    return ret;
  }

  if (singleType === 'i8') {
    if (slab.subarray || slab.slice) {
      HEAPU8.set(/** @type {!Uint8Array} */ (slab), ret);
    } else {
      HEAPU8.set(new Uint8Array(slab), ret);
    }
    return ret;
  }

  var i = 0, type, typeSize, previousType;
  while (i < size) {
    var curr = slab[i];

    if (typeof curr === 'function') {
      curr = Runtime.getFunctionIndex(curr);
    }

    type = singleType || types[i];
    if (type === 0) {
      i++;
      continue;
    }
    assert(type, 'Must know what type to store in allocate!');

    if (type == 'i64') type = 'i32'; // special case: we have one i32 here, and one i32 later

    setValue(ret+i, curr, type);

    // no need to look up size unless type changes, so cache it
    if (previousType !== type) {
      typeSize = Runtime.getNativeTypeSize(type);
      previousType = type;
    }
    i += typeSize;
  }

  return ret;
}
Module["allocate"] = allocate;

// Allocate memory during any stage of startup - static memory early on, dynamic memory later, malloc when ready
function getMemory(size) {
  if (!staticSealed) return Runtime.staticAlloc(size);
  if (!runtimeInitialized) return Runtime.dynamicAlloc(size);
  return _malloc(size);
}
Module["getMemory"] = getMemory;

/** @type {function(number, number=)} */
function Pointer_stringify(ptr, length) {
  if (length === 0 || !ptr) return '';
  // TODO: use TextDecoder
  // Find the length, and check for UTF while doing so
  var hasUtf = 0;
  var t;
  var i = 0;
  while (1) {
    assert(ptr + i < TOTAL_MEMORY);
    t = HEAPU8[(((ptr)+(i))>>0)];
    hasUtf |= t;
    if (t == 0 && !length) break;
    i++;
    if (length && i == length) break;
  }
  if (!length) length = i;

  var ret = '';

  if (hasUtf < 128) {
    var MAX_CHUNK = 1024; // split up into chunks, because .apply on a huge string can overflow the stack
    var curr;
    while (length > 0) {
      curr = String.fromCharCode.apply(String, HEAPU8.subarray(ptr, ptr + Math.min(length, MAX_CHUNK)));
      ret = ret ? ret + curr : curr;
      ptr += MAX_CHUNK;
      length -= MAX_CHUNK;
    }
    return ret;
  }
  return Module['UTF8ToString'](ptr);
}
Module["Pointer_stringify"] = Pointer_stringify;

// Given a pointer 'ptr' to a null-terminated ASCII-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.

function AsciiToString(ptr) {
  var str = '';
  while (1) {
    var ch = HEAP8[((ptr++)>>0)];
    if (!ch) return str;
    str += String.fromCharCode(ch);
  }
}
Module["AsciiToString"] = AsciiToString;

// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in ASCII form. The copy will require at most str.length+1 bytes of space in the HEAP.

function stringToAscii(str, outPtr) {
  return writeAsciiToMemory(str, outPtr, false);
}
Module["stringToAscii"] = stringToAscii;

// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the given array that contains uint8 values, returns
// a copy of that string as a Javascript String object.

var UTF8Decoder = typeof TextDecoder !== 'undefined' ? new TextDecoder('utf8') : undefined;
function UTF8ArrayToString(u8Array, idx) {
  var endPtr = idx;
  // TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself.
  // Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage.
  while (u8Array[endPtr]) ++endPtr;

  if (endPtr - idx > 16 && u8Array.subarray && UTF8Decoder) {
    return UTF8Decoder.decode(u8Array.subarray(idx, endPtr));
  } else {
    var u0, u1, u2, u3, u4, u5;

    var str = '';
    while (1) {
      // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description and https://www.ietf.org/rfc/rfc2279.txt and https://tools.ietf.org/html/rfc3629
      u0 = u8Array[idx++];
      if (!u0) return str;
      if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; }
      u1 = u8Array[idx++] & 63;
      if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; }
      u2 = u8Array[idx++] & 63;
      if ((u0 & 0xF0) == 0xE0) {
        u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
      } else {
        u3 = u8Array[idx++] & 63;
        if ((u0 & 0xF8) == 0xF0) {
          u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | u3;
        } else {
          u4 = u8Array[idx++] & 63;
          if ((u0 & 0xFC) == 0xF8) {
            u0 = ((u0 & 3) << 24) | (u1 << 18) | (u2 << 12) | (u3 << 6) | u4;
          } else {
            u5 = u8Array[idx++] & 63;
            u0 = ((u0 & 1) << 30) | (u1 << 24) | (u2 << 18) | (u3 << 12) | (u4 << 6) | u5;
          }
        }
      }
      if (u0 < 0x10000) {
        str += String.fromCharCode(u0);
      } else {
        var ch = u0 - 0x10000;
        str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
      }
    }
  }
}
Module["UTF8ArrayToString"] = UTF8ArrayToString;

// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.

function UTF8ToString(ptr) {
  return UTF8ArrayToString(HEAPU8,ptr);
}
Module["UTF8ToString"] = UTF8ToString;

// Copies the given Javascript String object 'str' to the given byte array at address 'outIdx',
// encoded in UTF8 form and null-terminated. The copy will require at most str.length*4+1 bytes of space in the HEAP.
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
//   str: the Javascript string to copy.
//   outU8Array: the array to copy to. Each index in this array is assumed to be one 8-byte element.
//   outIdx: The starting offset in the array to begin the copying.
//   maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
//                    terminator, i.e. if maxBytesToWrite=1, only the null terminator will be written and nothing else.
//                    maxBytesToWrite=0 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.

function stringToUTF8Array(str, outU8Array, outIdx, maxBytesToWrite) {
  if (!(maxBytesToWrite > 0)) // Parameter maxBytesToWrite is not optional. Negative values, 0, null, undefined and false each don't write out any bytes.
    return 0;

  var startIdx = outIdx;
  var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator.
  for (var i = 0; i < str.length; ++i) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description and https://www.ietf.org/rfc/rfc2279.txt and https://tools.ietf.org/html/rfc3629
    var u = str.charCodeAt(i); // possibly a lead surrogate
    if (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF);
    if (u <= 0x7F) {
      if (outIdx >= endIdx) break;
      outU8Array[outIdx++] = u;
    } else if (u <= 0x7FF) {
      if (outIdx + 1 >= endIdx) break;
      outU8Array[outIdx++] = 0xC0 | (u >> 6);
      outU8Array[outIdx++] = 0x80 | (u & 63);
    } else if (u <= 0xFFFF) {
      if (outIdx + 2 >= endIdx) break;
      outU8Array[outIdx++] = 0xE0 | (u >> 12);
      outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63);
      outU8Array[outIdx++] = 0x80 | (u & 63);
    } else if (u <= 0x1FFFFF) {
      if (outIdx + 3 >= endIdx) break;
      outU8Array[outIdx++] = 0xF0 | (u >> 18);
      outU8Array[outIdx++] = 0x80 | ((u >> 12) & 63);
      outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63);
      outU8Array[outIdx++] = 0x80 | (u & 63);
    } else if (u <= 0x3FFFFFF) {
      if (outIdx + 4 >= endIdx) break;
      outU8Array[outIdx++] = 0xF8 | (u >> 24);
      outU8Array[outIdx++] = 0x80 | ((u >> 18) & 63);
      outU8Array[outIdx++] = 0x80 | ((u >> 12) & 63);
      outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63);
      outU8Array[outIdx++] = 0x80 | (u & 63);
    } else {
      if (outIdx + 5 >= endIdx) break;
      outU8Array[outIdx++] = 0xFC | (u >> 30);
      outU8Array[outIdx++] = 0x80 | ((u >> 24) & 63);
      outU8Array[outIdx++] = 0x80 | ((u >> 18) & 63);
      outU8Array[outIdx++] = 0x80 | ((u >> 12) & 63);
      outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63);
      outU8Array[outIdx++] = 0x80 | (u & 63);
    }
  }
  // Null-terminate the pointer to the buffer.
  outU8Array[outIdx] = 0;
  return outIdx - startIdx;
}
Module["stringToUTF8Array"] = stringToUTF8Array;

// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF8 form. The copy will require at most str.length*4+1 bytes of space in the HEAP.
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
// Returns the number of bytes written, EXCLUDING the null terminator.

function stringToUTF8(str, outPtr, maxBytesToWrite) {
  assert(typeof maxBytesToWrite == 'number', 'stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
  return stringToUTF8Array(str, HEAPU8,outPtr, maxBytesToWrite);
}
Module["stringToUTF8"] = stringToUTF8;

// Returns the number of bytes the given Javascript string takes if encoded as a UTF8 byte array, EXCLUDING the null terminator byte.

function lengthBytesUTF8(str) {
  var len = 0;
  for (var i = 0; i < str.length; ++i) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    var u = str.charCodeAt(i); // possibly a lead surrogate
    if (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF);
    if (u <= 0x7F) {
      ++len;
    } else if (u <= 0x7FF) {
      len += 2;
    } else if (u <= 0xFFFF) {
      len += 3;
    } else if (u <= 0x1FFFFF) {
      len += 4;
    } else if (u <= 0x3FFFFFF) {
      len += 5;
    } else {
      len += 6;
    }
  }
  return len;
}
Module["lengthBytesUTF8"] = lengthBytesUTF8;

// Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.

var UTF16Decoder = typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-16le') : undefined;
function UTF16ToString(ptr) {
  assert(ptr % 2 == 0, 'Pointer passed to UTF16ToString must be aligned to two bytes!');
  var endPtr = ptr;
  // TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself.
  // Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage.
  var idx = endPtr >> 1;
  while (HEAP16[idx]) ++idx;
  endPtr = idx << 1;

  if (endPtr - ptr > 32 && UTF16Decoder) {
    return UTF16Decoder.decode(HEAPU8.subarray(ptr, endPtr));
  } else {
    var i = 0;

    var str = '';
    while (1) {
      var codeUnit = HEAP16[(((ptr)+(i*2))>>1)];
      if (codeUnit == 0) return str;
      ++i;
      // fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through.
      str += String.fromCharCode(codeUnit);
    }
  }
}


// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF16 form. The copy will require at most str.length*4+2 bytes of space in the HEAP.
// Use the function lengthBytesUTF16() to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
//   str: the Javascript string to copy.
//   outPtr: Byte address in Emscripten HEAP where to write the string to.
//   maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
//                    terminator, i.e. if maxBytesToWrite=2, only the null terminator will be written and nothing else.
//                    maxBytesToWrite<2 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.

function stringToUTF16(str, outPtr, maxBytesToWrite) {
  assert(outPtr % 2 == 0, 'Pointer passed to stringToUTF16 must be aligned to two bytes!');
  assert(typeof maxBytesToWrite == 'number', 'stringToUTF16(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
  // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
  if (maxBytesToWrite === undefined) {
    maxBytesToWrite = 0x7FFFFFFF;
  }
  if (maxBytesToWrite < 2) return 0;
  maxBytesToWrite -= 2; // Null terminator.
  var startPtr = outPtr;
  var numCharsToWrite = (maxBytesToWrite < str.length*2) ? (maxBytesToWrite / 2) : str.length;
  for (var i = 0; i < numCharsToWrite; ++i) {
    // charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP.
    var codeUnit = str.charCodeAt(i); // possibly a lead surrogate
    HEAP16[((outPtr)>>1)]=codeUnit;
    outPtr += 2;
  }
  // Null-terminate the pointer to the HEAP.
  HEAP16[((outPtr)>>1)]=0;
  return outPtr - startPtr;
}


// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.

function lengthBytesUTF16(str) {
  return str.length*2;
}


function UTF32ToString(ptr) {
  assert(ptr % 4 == 0, 'Pointer passed to UTF32ToString must be aligned to four bytes!');
  var i = 0;

  var str = '';
  while (1) {
    var utf32 = HEAP32[(((ptr)+(i*4))>>2)];
    if (utf32 == 0)
      return str;
    ++i;
    // Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    if (utf32 >= 0x10000) {
      var ch = utf32 - 0x10000;
      str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
    } else {
      str += String.fromCharCode(utf32);
    }
  }
}


// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF32 form. The copy will require at most str.length*4+4 bytes of space in the HEAP.
// Use the function lengthBytesUTF32() to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
//   str: the Javascript string to copy.
//   outPtr: Byte address in Emscripten HEAP where to write the string to.
//   maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
//                    terminator, i.e. if maxBytesToWrite=4, only the null terminator will be written and nothing else.
//                    maxBytesToWrite<4 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.

function stringToUTF32(str, outPtr, maxBytesToWrite) {
  assert(outPtr % 4 == 0, 'Pointer passed to stringToUTF32 must be aligned to four bytes!');
  assert(typeof maxBytesToWrite == 'number', 'stringToUTF32(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
  // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
  if (maxBytesToWrite === undefined) {
    maxBytesToWrite = 0x7FFFFFFF;
  }
  if (maxBytesToWrite < 4) return 0;
  var startPtr = outPtr;
  var endPtr = startPtr + maxBytesToWrite - 4;
  for (var i = 0; i < str.length; ++i) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    var codeUnit = str.charCodeAt(i); // possibly a lead surrogate
    if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) {
      var trailSurrogate = str.charCodeAt(++i);
      codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF);
    }
    HEAP32[((outPtr)>>2)]=codeUnit;
    outPtr += 4;
    if (outPtr + 4 > endPtr) break;
  }
  // Null-terminate the pointer to the HEAP.
  HEAP32[((outPtr)>>2)]=0;
  return outPtr - startPtr;
}


// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.

function lengthBytesUTF32(str) {
  var len = 0;
  for (var i = 0; i < str.length; ++i) {
    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
    // See http://unicode.org/faq/utf_bom.html#utf16-3
    var codeUnit = str.charCodeAt(i);
    if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) ++i; // possibly a lead surrogate, so skip over the tail surrogate.
    len += 4;
  }

  return len;
}


function demangle(func) {
  var __cxa_demangle_func = Module['___cxa_demangle'] || Module['__cxa_demangle'];
  if (__cxa_demangle_func) {
    try {
      var s =
        func.substr(1);
      var len = lengthBytesUTF8(s)+1;
      var buf = _malloc(len);
      stringToUTF8(s, buf, len);
      var status = _malloc(4);
      var ret = __cxa_demangle_func(buf, 0, 0, status);
      if (getValue(status, 'i32') === 0 && ret) {
        return Pointer_stringify(ret);
      }
      // otherwise, libcxxabi failed
    } catch(e) {
      // ignore problems here
    } finally {
      if (buf) _free(buf);
      if (status) _free(status);
      if (ret) _free(ret);
    }
    // failure when using libcxxabi, don't demangle
    return func;
  }
  Runtime.warnOnce('warning: build with  -s DEMANGLE_SUPPORT=1  to link in libcxxabi demangling');
  return func;
}

function demangleAll(text) {
  var regex =
    /__Z[\w\d_]+/g;
  return text.replace(regex,
    function(x) {
      var y = demangle(x);
      return x === y ? x : (x + ' [' + y + ']');
    });
}

function jsStackTrace() {
  var err = new Error();
  if (!err.stack) {
    // IE10+ special cases: It does have callstack info, but it is only populated if an Error object is thrown,
    // so try that as a special-case.
    try {
      throw new Error(0);
    } catch(e) {
      err = e;
    }
    if (!err.stack) {
      return '(no stack trace available)';
    }
  }
  return err.stack.toString();
}

function stackTrace() {
  var js = jsStackTrace();
  if (Module['extraStackTrace']) js += '\n' + Module['extraStackTrace']();
  return demangleAll(js);
}
Module["stackTrace"] = stackTrace;

// Memory management

var PAGE_SIZE = 16384;
var WASM_PAGE_SIZE = 65536;
var ASMJS_PAGE_SIZE = 16777216;
var MIN_TOTAL_MEMORY = 16777216;

function alignUp(x, multiple) {
  if (x % multiple > 0) {
    x += multiple - (x % multiple);
  }
  return x;
}

var HEAP,
/** @type {ArrayBuffer} */
  buffer,
/** @type {Int8Array} */
  HEAP8,
/** @type {Uint8Array} */
  HEAPU8,
/** @type {Int16Array} */
  HEAP16,
/** @type {Uint16Array} */
  HEAPU16,
/** @type {Int32Array} */
  HEAP32,
/** @type {Uint32Array} */
  HEAPU32,
/** @type {Float32Array} */
  HEAPF32,
/** @type {Float64Array} */
  HEAPF64;

function updateGlobalBuffer(buf) {
  Module['buffer'] = buffer = buf;
}

function updateGlobalBufferViews() {
  Module['HEAP8'] = HEAP8 = new Int8Array(buffer);
  Module['HEAP16'] = HEAP16 = new Int16Array(buffer);
  Module['HEAP32'] = HEAP32 = new Int32Array(buffer);
  Module['HEAPU8'] = HEAPU8 = new Uint8Array(buffer);
  Module['HEAPU16'] = HEAPU16 = new Uint16Array(buffer);
  Module['HEAPU32'] = HEAPU32 = new Uint32Array(buffer);
  Module['HEAPF32'] = HEAPF32 = new Float32Array(buffer);
  Module['HEAPF64'] = HEAPF64 = new Float64Array(buffer);
}

var STATIC_BASE, STATICTOP, staticSealed; // static area
var STACK_BASE, STACKTOP, STACK_MAX; // stack area
var DYNAMIC_BASE, DYNAMICTOP_PTR; // dynamic area handled by sbrk

  STATIC_BASE = STATICTOP = STACK_BASE = STACKTOP = STACK_MAX = DYNAMIC_BASE = DYNAMICTOP_PTR = 0;
  staticSealed = false;


// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode.
function writeStackCookie() {
  assert((STACK_MAX & 3) == 0);
  HEAPU32[(STACK_MAX >> 2)-1] = 0x02135467;
  HEAPU32[(STACK_MAX >> 2)-2] = 0x89BACDFE;
}

function checkStackCookie() {
  if (HEAPU32[(STACK_MAX >> 2)-1] != 0x02135467 || HEAPU32[(STACK_MAX >> 2)-2] != 0x89BACDFE) {
    abort('Stack overflow! Stack cookie has been overwritten, expected hex dwords 0x89BACDFE and 0x02135467, but received 0x' + HEAPU32[(STACK_MAX >> 2)-2].toString(16) + ' ' + HEAPU32[(STACK_MAX >> 2)-1].toString(16));
  }
  // Also test the global address 0 for integrity. This check is not compatible with SAFE_SPLIT_MEMORY though, since that mode already tests all address 0 accesses on its own.
  if (HEAP32[0] !== 0x63736d65 /* 'emsc' */) throw 'Runtime error: The application has corrupted its heap memory area (address zero)!';
}

function abortStackOverflow(allocSize) {
  abort('Stack overflow! Attempted to allocate ' + allocSize + ' bytes on the stack, but stack has only ' + (STACK_MAX - Module['asm'].stackSave() + allocSize) + ' bytes available!');
}

function abortOnCannotGrowMemory() {
  abort('Cannot enlarge memory arrays. Either (1) compile with  -s TOTAL_MEMORY=X  with X higher than the current value ' + TOTAL_MEMORY + ', (2) compile with  -s ALLOW_MEMORY_GROWTH=1  which allows increasing the size at runtime, or (3) if you want malloc to return NULL (0) instead of this abort, compile with  -s ABORTING_MALLOC=0 ');
}


function enlargeMemory() {
  abortOnCannotGrowMemory();
}


var TOTAL_STACK = Module['TOTAL_STACK'] || 5242880;
var TOTAL_MEMORY = Module['TOTAL_MEMORY'] || 67108864;
if (TOTAL_MEMORY < TOTAL_STACK) Module.printErr('TOTAL_MEMORY should be larger than TOTAL_STACK, was ' + TOTAL_MEMORY + '! (TOTAL_STACK=' + TOTAL_STACK + ')');

// Initialize the runtime's memory
// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
assert(typeof Int32Array !== 'undefined' && typeof Float64Array !== 'undefined' && Int32Array.prototype.subarray !== undefined && Int32Array.prototype.set !== undefined,
       'JS engine does not provide full typed array support');



// Use a provided buffer, if there is one, or else allocate a new one
if (Module['buffer']) {
  buffer = Module['buffer'];
  assert(buffer.byteLength === TOTAL_MEMORY, 'provided buffer should be ' + TOTAL_MEMORY + ' bytes, but it is ' + buffer.byteLength);
} else {
  // Use a WebAssembly memory where available
  if (typeof WebAssembly === 'object' && typeof WebAssembly.Memory === 'function') {
    assert(TOTAL_MEMORY % WASM_PAGE_SIZE === 0);
    Module['wasmMemory'] = new WebAssembly.Memory({ 'initial': TOTAL_MEMORY / WASM_PAGE_SIZE, 'maximum': TOTAL_MEMORY / WASM_PAGE_SIZE });
    buffer = Module['wasmMemory'].buffer;
  } else
  {
    buffer = new ArrayBuffer(TOTAL_MEMORY);
  }
  assert(buffer.byteLength === TOTAL_MEMORY);
}
updateGlobalBufferViews();


function getTotalMemory() {
  return TOTAL_MEMORY;
}

// Endianness check (note: assumes compiler arch was little-endian)
  HEAP32[0] = 0x63736d65; /* 'emsc' */
HEAP16[1] = 0x6373;
if (HEAPU8[2] !== 0x73 || HEAPU8[3] !== 0x63) throw 'Runtime error: expected the system to be little-endian!';

Module['HEAP'] = HEAP;
Module['buffer'] = buffer;
Module['HEAP8'] = HEAP8;
Module['HEAP16'] = HEAP16;
Module['HEAP32'] = HEAP32;
Module['HEAPU8'] = HEAPU8;
Module['HEAPU16'] = HEAPU16;
Module['HEAPU32'] = HEAPU32;
Module['HEAPF32'] = HEAPF32;
Module['HEAPF64'] = HEAPF64;

function callRuntimeCallbacks(callbacks) {
  while(callbacks.length > 0) {
    var callback = callbacks.shift();
    if (typeof callback == 'function') {
      callback();
      continue;
    }
    var func = callback.func;
    if (typeof func === 'number') {
      if (callback.arg === undefined) {
        Module['dynCall_v'](func);
      } else {
        Module['dynCall_vi'](func, callback.arg);
      }
    } else {
      func(callback.arg === undefined ? null : callback.arg);
    }
  }
}

var __ATPRERUN__  = []; // functions called before the runtime is initialized
var __ATINIT__    = []; // functions called during startup
var __ATMAIN__    = []; // functions called when main() is to be run
var __ATEXIT__    = []; // functions called during shutdown
var __ATPOSTRUN__ = []; // functions called after the runtime has exited

var runtimeInitialized = false;
var runtimeExited = false;


function preRun() {
  // compatibility - merge in anything from Module['preRun'] at this time
  if (Module['preRun']) {
    if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']];
    while (Module['preRun'].length) {
      addOnPreRun(Module['preRun'].shift());
    }
  }
  callRuntimeCallbacks(__ATPRERUN__);
}

function ensureInitRuntime() {
  checkStackCookie();
  if (runtimeInitialized) return;
  runtimeInitialized = true;
  callRuntimeCallbacks(__ATINIT__);
}

function preMain() {
  checkStackCookie();
  callRuntimeCallbacks(__ATMAIN__);
}

function exitRuntime() {
  checkStackCookie();
  callRuntimeCallbacks(__ATEXIT__);
  runtimeExited = true;
}

function postRun() {
  checkStackCookie();
  // compatibility - merge in anything from Module['postRun'] at this time
  if (Module['postRun']) {
    if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']];
    while (Module['postRun'].length) {
      addOnPostRun(Module['postRun'].shift());
    }
  }
  callRuntimeCallbacks(__ATPOSTRUN__);
}

function addOnPreRun(cb) {
  __ATPRERUN__.unshift(cb);
}
Module["addOnPreRun"] = addOnPreRun;

function addOnInit(cb) {
  __ATINIT__.unshift(cb);
}
Module["addOnInit"] = addOnInit;

function addOnPreMain(cb) {
  __ATMAIN__.unshift(cb);
}
Module["addOnPreMain"] = addOnPreMain;

function addOnExit(cb) {
  __ATEXIT__.unshift(cb);
}
Module["addOnExit"] = addOnExit;

function addOnPostRun(cb) {
  __ATPOSTRUN__.unshift(cb);
}
Module["addOnPostRun"] = addOnPostRun;

// Tools

/** @type {function(string, boolean=, number=)} */
function intArrayFromString(stringy, dontAddNull, length) {
  var len = length > 0 ? length : lengthBytesUTF8(stringy)+1;
  var u8array = new Array(len);
  var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length);
  if (dontAddNull) u8array.length = numBytesWritten;
  return u8array;
}
Module["intArrayFromString"] = intArrayFromString;

function intArrayToString(array) {
  var ret = [];
  for (var i = 0; i < array.length; i++) {
    var chr = array[i];
    if (chr > 0xFF) {
      assert(false, 'Character code ' + chr + ' (' + String.fromCharCode(chr) + ')  at offset ' + i + ' not in 0x00-0xFF.');
      chr &= 0xFF;
    }
    ret.push(String.fromCharCode(chr));
  }
  return ret.join('');
}
Module["intArrayToString"] = intArrayToString;

// Deprecated: This function should not be called because it is unsafe and does not provide
// a maximum length limit of how many bytes it is allowed to write. Prefer calling the
// function stringToUTF8Array() instead, which takes in a maximum length that can be used
// to be secure from out of bounds writes.
/** @deprecated */
function writeStringToMemory(string, buffer, dontAddNull) {
  Runtime.warnOnce('writeStringToMemory is deprecated and should not be called! Use stringToUTF8() instead!');

  var /** @type {number} */ lastChar, /** @type {number} */ end;
  if (dontAddNull) {
    // stringToUTF8Array always appends null. If we don't want to do that, remember the
    // character that existed at the location where the null will be placed, and restore
    // that after the write (below).
    end = buffer + lengthBytesUTF8(string);
    lastChar = HEAP8[end];
  }
  stringToUTF8(string, buffer, Infinity);
  if (dontAddNull) HEAP8[end] = lastChar; // Restore the value under the null character.
}
Module["writeStringToMemory"] = writeStringToMemory;

function writeArrayToMemory(array, buffer) {
  assert(array.length >= 0, 'writeArrayToMemory array must have a length (should be an array or typed array)')
  HEAP8.set(array, buffer);
}
Module["writeArrayToMemory"] = writeArrayToMemory;

function writeAsciiToMemory(str, buffer, dontAddNull) {
  for (var i = 0; i < str.length; ++i) {
    assert(str.charCodeAt(i) === str.charCodeAt(i)&0xff);
    HEAP8[((buffer++)>>0)]=str.charCodeAt(i);
  }
  // Null-terminate the pointer to the HEAP.
  if (!dontAddNull) HEAP8[((buffer)>>0)]=0;
}
Module["writeAsciiToMemory"] = writeAsciiToMemory;

function unSign(value, bits, ignore) {
  if (value >= 0) {
    return value;
  }
  return bits <= 32 ? 2*Math.abs(1 << (bits-1)) + value // Need some trickery, since if bits == 32, we are right at the limit of the bits JS uses in bitshifts
                    : Math.pow(2, bits)         + value;
}
function reSign(value, bits, ignore) {
  if (value <= 0) {
    return value;
  }
  var half = bits <= 32 ? Math.abs(1 << (bits-1)) // abs is needed if bits == 32
                        : Math.pow(2, bits-1);
  if (value >= half && (bits <= 32 || value > half)) { // for huge values, we can hit the precision limit and always get true here. so don't do that
                                                       // but, in general there is no perfect solution here. With 64-bit ints, we get rounding and errors
                                                       // TODO: In i64 mode 1, resign the two parts separately and safely
    value = -2*half + value; // Cannot bitshift half, as it may be at the limit of the bits JS uses in bitshifts
  }
  return value;
}


// check for imul support, and also for correctness ( https://bugs.webkit.org/show_bug.cgi?id=126345 )
if (!Math['imul'] || Math['imul'](0xffffffff, 5) !== -5) Math['imul'] = function imul(a, b) {
  var ah  = a >>> 16;
  var al = a & 0xffff;
  var bh  = b >>> 16;
  var bl = b & 0xffff;
  return (al*bl + ((ah*bl + al*bh) << 16))|0;
};
Math.imul = Math['imul'];

if (!Math['fround']) {
  var froundBuffer = new Float32Array(1);
  Math['fround'] = function(x) { froundBuffer[0] = x; return froundBuffer[0] };
}
Math.fround = Math['fround'];

if (!Math['clz32']) Math['clz32'] = function(x) {
  x = x >>> 0;
  for (var i = 0; i < 32; i++) {
    if (x & (1 << (31 - i))) return i;
  }
  return 32;
};
Math.clz32 = Math['clz32']

if (!Math['trunc']) Math['trunc'] = function(x) {
  return x < 0 ? Math.ceil(x) : Math.floor(x);
};
Math.trunc = Math['trunc'];

var Math_abs = Math.abs;
var Math_cos = Math.cos;
var Math_sin = Math.sin;
var Math_tan = Math.tan;
var Math_acos = Math.acos;
var Math_asin = Math.asin;
var Math_atan = Math.atan;
var Math_atan2 = Math.atan2;
var Math_exp = Math.exp;
var Math_log = Math.log;
var Math_sqrt = Math.sqrt;
var Math_ceil = Math.ceil;
var Math_floor = Math.floor;
var Math_pow = Math.pow;
var Math_imul = Math.imul;
var Math_fround = Math.fround;
var Math_round = Math.round;
var Math_min = Math.min;
var Math_clz32 = Math.clz32;
var Math_trunc = Math.trunc;

// A counter of dependencies for calling run(). If we need to
// do asynchronous work before running, increment this and
// decrement it. Incrementing must happen in a place like
// PRE_RUN_ADDITIONS (used by emcc to add file preloading).
// Note that you can add dependencies in preRun, even though
// it happens right before run - run will be postponed until
// the dependencies are met.
var runDependencies = 0;
var runDependencyWatcher = null;
var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled
var runDependencyTracking = {};

function getUniqueRunDependency(id) {
  var orig = id;
  while (1) {
    if (!runDependencyTracking[id]) return id;
    id = orig + Math.random();
  }
  return id;
}

function addRunDependency(id) {
  runDependencies++;
  if (Module['monitorRunDependencies']) {
    Module['monitorRunDependencies'](runDependencies);
  }
  if (id) {
    assert(!runDependencyTracking[id]);
    runDependencyTracking[id] = 1;
    if (runDependencyWatcher === null && typeof setInterval !== 'undefined') {
      // Check for missing dependencies every few seconds
      runDependencyWatcher = setInterval(function() {
        if (ABORT) {
          clearInterval(runDependencyWatcher);
          runDependencyWatcher = null;
          return;
        }
        var shown = false;
        for (var dep in runDependencyTracking) {
          if (!shown) {
            shown = true;
            Module.printErr('still waiting on run dependencies:');
          }
          Module.printErr('dependency: ' + dep);
        }
        if (shown) {
          Module.printErr('(end of list)');
        }
      }, 10000);
    }
  } else {
    Module.printErr('warning: run dependency added without ID');
  }
}
Module["addRunDependency"] = addRunDependency;

function removeRunDependency(id) {
  runDependencies--;
  if (Module['monitorRunDependencies']) {
    Module['monitorRunDependencies'](runDependencies);
  }
  if (id) {
    assert(runDependencyTracking[id]);
    delete runDependencyTracking[id];
  } else {
    Module.printErr('warning: run dependency removed without ID');
  }
  if (runDependencies == 0) {
    if (runDependencyWatcher !== null) {
      clearInterval(runDependencyWatcher);
      runDependencyWatcher = null;
    }
    if (dependenciesFulfilled) {
      var callback = dependenciesFulfilled;
      dependenciesFulfilled = null;
      callback(); // can add another dependenciesFulfilled
    }
  }
}
Module["removeRunDependency"] = removeRunDependency;

Module["preloadedImages"] = {}; // maps url to image data
Module["preloadedAudios"] = {}; // maps url to audio data



var memoryInitializer = null;





function integrateWasmJS(Module) {
  // wasm.js has several methods for creating the compiled code module here:
  //  * 'native-wasm' : use native WebAssembly support in the browser
  //  * 'interpret-s-expr': load s-expression code from a .wast and interpret
  //  * 'interpret-binary': load binary wasm and interpret
  //  * 'interpret-asm2wasm': load asm.js code, translate to wasm, and interpret
  //  * 'asmjs': no wasm, just load the asm.js code and use that (good for testing)
  // The method can be set at compile time (BINARYEN_METHOD), or runtime by setting Module['wasmJSMethod'].
  // The method can be a comma-separated list, in which case, we will try the
  // options one by one. Some of them can fail gracefully, and then we can try
  // the next.

  // inputs

  var method = Module['wasmJSMethod'] || 'native-wasm';
  Module['wasmJSMethod'] = method;

  var wasmTextFile = Module['wasmTextFile'] || 'ffmpeg-webm.wast';
  var wasmBinaryFile = Module['wasmBinaryFile'] || 'ffmpeg-webm.wasm';
  var asmjsCodeFile = Module['asmjsCodeFile'] || 'ffmpeg-webm.temp.asm.js';

  if (typeof Module['locateFile'] === 'function') {
    wasmTextFile = Module['locateFile'](wasmTextFile);
    wasmBinaryFile = Module['locateFile'](wasmBinaryFile);
    asmjsCodeFile = Module['locateFile'](asmjsCodeFile);
  }

  // utilities

  var wasmPageSize = 64*1024;

  var asm2wasmImports = { // special asm2wasm imports
    "f64-rem": function(x, y) {
      return x % y;
    },
    "f64-to-int": function(x) {
      return x | 0;
    },
    "i32s-div": function(x, y) {
      return ((x | 0) / (y | 0)) | 0;
    },
    "i32u-div": function(x, y) {
      return ((x >>> 0) / (y >>> 0)) >>> 0;
    },
    "i32s-rem": function(x, y) {
      return ((x | 0) % (y | 0)) | 0;
    },
    "i32u-rem": function(x, y) {
      return ((x >>> 0) % (y >>> 0)) >>> 0;
    },
    "debugger": function() {
      debugger;
    },
  };

  var info = {
    'global': null,
    'env': null,
    'asm2wasm': asm2wasmImports,
    'parent': Module // Module inside wasm-js.cpp refers to wasm-js.cpp; this allows access to the outside program.
  };

  var exports = null;

  function lookupImport(mod, base) {
    var lookup = info;
    if (mod.indexOf('.') < 0) {
      lookup = (lookup || {})[mod];
    } else {
      var parts = mod.split('.');
      lookup = (lookup || {})[parts[0]];
      lookup = (lookup || {})[parts[1]];
    }
    if (base) {
      lookup = (lookup || {})[base];
    }
    if (lookup === undefined) {
      abort('bad lookupImport to (' + mod + ').' + base);
    }
    return lookup;
  }

  function mergeMemory(newBuffer) {
    // The wasm instance creates its memory. But static init code might have written to
    // buffer already, including the mem init file, and we must copy it over in a proper merge.
    // TODO: avoid this copy, by avoiding such static init writes
    // TODO: in shorter term, just copy up to the last static init write
    var oldBuffer = Module['buffer'];
    if (newBuffer.byteLength < oldBuffer.byteLength) {
      Module['printErr']('the new buffer in mergeMemory is smaller than the previous one. in native wasm, we should grow memory here');
    }
    var oldView = new Int8Array(oldBuffer);
    var newView = new Int8Array(newBuffer);

    // If we have a mem init file, do not trample it
    if (!memoryInitializer) {
      oldView.set(newView.subarray(Module['STATIC_BASE'], Module['STATIC_BASE'] + Module['STATIC_BUMP']), Module['STATIC_BASE']);
    }

    newView.set(oldView);
    updateGlobalBuffer(newBuffer);
    updateGlobalBufferViews();
  }

  var WasmTypes = {
    none: 0,
    i32: 1,
    i64: 2,
    f32: 3,
    f64: 4
  };

  function fixImports(imports) {
    if (!0) return imports;
    var ret = {};
    for (var i in imports) {
      var fixed = i;
      if (fixed[0] == '_') fixed = fixed.substr(1);
      ret[fixed] = imports[i];
    }
    return ret;
  }

  function getBinary() {
    var binary;
    if (Module['wasmBinary']) {
      binary = Module['wasmBinary'];
      binary = new Uint8Array(binary);
    } else if (Module['readBinary']) {
      binary = Module['readBinary'](wasmBinaryFile);
    } else {
      throw "on the web, we need the wasm binary to be preloaded and set on Module['wasmBinary']. emcc.py will do that for you when generating HTML (but not JS)";
    }
    return binary;
  }

  function getBinaryPromise() {
    // if we don't have the binary yet, and have the Fetch api, use that
    if (!Module['wasmBinary'] && typeof fetch === 'function') {
      return fetch(wasmBinaryFile).then(function(response) {
        if (!response['ok']) {
          throw "failed to load wasm binary file at '" + wasmBinaryFile + "'";
        }
        return response['arrayBuffer']();
      });
    }
    // Otherwise, getBinary should be able to get it synchronously
    return new Promise(function(resolve, reject) {
      resolve(getBinary());
    });
  }

  // do-method functions

  function doJustAsm(global, env, providedBuffer) {
    // if no Module.asm, or it's the method handler helper (see below), then apply
    // the asmjs
    if (typeof Module['asm'] !== 'function' || Module['asm'] === methodHandler) {
      if (!Module['asmPreload']) {
        // you can load the .asm.js file before this, to avoid this sync xhr and eval
        eval(Module['read'](asmjsCodeFile)); // set Module.asm
      } else {
        Module['asm'] = Module['asmPreload'];
      }
    }
    if (typeof Module['asm'] !== 'function') {
      Module['printErr']('asm evalling did not set the module properly');
      return false;
    }
    return Module['asm'](global, env, providedBuffer);
  }

  function doNativeWasm(global, env, providedBuffer) {
    if (typeof WebAssembly !== 'object') {
      Module['printErr']('no native wasm support detected');
      return false;
    }
    // prepare memory import
    if (!(Module['wasmMemory'] instanceof WebAssembly.Memory)) {
      Module['printErr']('no native wasm Memory in use');
      return false;
    }
    env['memory'] = Module['wasmMemory'];
    // Load the wasm module and create an instance of using native support in the JS engine.
    info['global'] = {
      'NaN': NaN,
      'Infinity': Infinity
    };
    info['global.Math'] = global.Math;
    info['env'] = env;
    // handle a generated wasm instance, receiving its exports and
    // performing other necessary setup
    function receiveInstance(instance) {
      exports = instance.exports;
      if (exports.memory) mergeMemory(exports.memory);
      Module['asm'] = exports;
      Module["usingWasm"] = true;
      removeRunDependency('wasm-instantiate');
    }

    addRunDependency('wasm-instantiate'); // we can't run yet

    // User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback
    // to manually instantiate the Wasm module themselves. This allows pages to run the instantiation parallel
    // to any other async startup actions they are performing.
    if (Module['instantiateWasm']) {
      try {
        return Module['instantiateWasm'](info, receiveInstance);
      } catch(e) {
        Module['printErr']('Module.instantiateWasm callback failed with error: ' + e);
        return false;
      }
    }

    getBinaryPromise().then(function(binary) {
      return WebAssembly.instantiate(binary, info)
    }).then(function(output) {
      // receiveInstance() will swap in the exports (to Module.asm) so they can be called
      receiveInstance(output['instance']);
    }).catch(function(reason) {
      Module['printErr']('failed to asynchronously prepare wasm: ' + reason);
      Module['quit'](1, reason);
    });
    return {}; // no exports yet; we'll fill them in later
  }

  function doWasmPolyfill(global, env, providedBuffer, method) {
    if (typeof WasmJS !== 'function') {
      Module['printErr']('WasmJS not detected - polyfill not bundled?');
      return false;
    }

    // Use wasm.js to polyfill and execute code in a wasm interpreter.
    var wasmJS = WasmJS({});

    // XXX don't be confused. Module here is in the outside program. wasmJS is the inner wasm-js.cpp.
    wasmJS['outside'] = Module; // Inside wasm-js.cpp, Module['outside'] reaches the outside module.

    // Information for the instance of the module.
    wasmJS['info'] = info;

    wasmJS['lookupImport'] = lookupImport;

    assert(providedBuffer === Module['buffer']); // we should not even need to pass it as a 3rd arg for wasm, but that's the asm.js way.

    info.global = global;
    info.env = env;

    // polyfill interpreter expects an ArrayBuffer
    assert(providedBuffer === Module['buffer']);
    env['memory'] = providedBuffer;
    assert(env['memory'] instanceof ArrayBuffer);

    wasmJS['providedTotalMemory'] = Module['buffer'].byteLength;

    // Prepare to generate wasm, using either asm2wasm or s-exprs
    var code;
    if (method === 'interpret-binary') {
      code = getBinary();
    } else {
      code = Module['read'](method == 'interpret-asm2wasm' ? asmjsCodeFile : wasmTextFile);
    }
    var temp;
    if (method == 'interpret-asm2wasm') {
      temp = wasmJS['_malloc'](code.length + 1);
      wasmJS['writeAsciiToMemory'](code, temp);
      wasmJS['_load_asm2wasm'](temp);
    } else if (method === 'interpret-s-expr') {
      temp = wasmJS['_malloc'](code.length + 1);
      wasmJS['writeAsciiToMemory'](code, temp);
      wasmJS['_load_s_expr2wasm'](temp);
    } else if (method === 'interpret-binary') {
      temp = wasmJS['_malloc'](code.length);
      wasmJS['HEAPU8'].set(code, temp);
      wasmJS['_load_binary2wasm'](temp, code.length);
    } else {
      throw 'what? ' + method;
    }
    wasmJS['_free'](temp);

    wasmJS['_instantiate'](temp);

    if (Module['newBuffer']) {
      mergeMemory(Module['newBuffer']);
      Module['newBuffer'] = null;
    }

    exports = wasmJS['asmExports'];

    return exports;
  }

  // We may have a preloaded value in Module.asm, save it
  Module['asmPreload'] = Module['asm'];

  // Memory growth integration code
  Module['reallocBuffer'] = function(size) {
    var PAGE_MULTIPLE = Module["usingWasm"] ? WASM_PAGE_SIZE : ASMJS_PAGE_SIZE; // In wasm, heap size must be a multiple of 64KB. In asm.js, they need to be multiples of 16MB.
    size = alignUp(size, PAGE_MULTIPLE); // round up to wasm page size
    var old = Module['buffer'];
    var oldSize = old.byteLength;
    if (Module["usingWasm"]) {
      try {
        var result = Module['wasmMemory'].grow((size - oldSize) / wasmPageSize); // .grow() takes a delta compared to the previous size
        if (result !== (-1 | 0)) {
          // success in native wasm memory growth, get the buffer from the memory
          return Module['buffer'] = Module['wasmMemory'].buffer;
        } else {
          return null;
        }
      } catch(e) {
        console.error('Module.reallocBuffer: Attempted to grow from ' + oldSize  + ' bytes to ' + size + ' bytes, but got error: ' + e);
        return null;
      }
    } else {
      exports['__growWasmMemory']((size - oldSize) / wasmPageSize); // tiny wasm method that just does grow_memory
      // in interpreter, we replace Module.buffer if we allocate
      return Module['buffer'] !== old ? Module['buffer'] : null; // if it was reallocated, it changed
    }
  };

  // Provide an "asm.js function" for the application, called to "link" the asm.js module. We instantiate
  // the wasm module at that time, and it receives imports and provides exports and so forth, the app
  // doesn't need to care that it is wasm or olyfilled wasm or asm.js.

  Module['asm'] = function(global, env, providedBuffer) {
    global = fixImports(global);
    env = fixImports(env);

    // import table
    if (!env['table']) {
      var TABLE_SIZE = Module['wasmTableSize'];
      if (TABLE_SIZE === undefined) TABLE_SIZE = 1024; // works in binaryen interpreter at least
      var MAX_TABLE_SIZE = Module['wasmMaxTableSize'];
      if (typeof WebAssembly === 'object' && typeof WebAssembly.Table === 'function') {
        if (MAX_TABLE_SIZE !== undefined) {
          env['table'] = new WebAssembly.Table({ 'initial': TABLE_SIZE, 'maximum': MAX_TABLE_SIZE, 'element': 'anyfunc' });
        } else {
          env['table'] = new WebAssembly.Table({ 'initial': TABLE_SIZE, element: 'anyfunc' });
        }
      } else {
        env['table'] = new Array(TABLE_SIZE); // works in binaryen interpreter at least
      }
      Module['wasmTable'] = env['table'];
    }

    if (!env['memoryBase']) {
      env['memoryBase'] = Module['STATIC_BASE']; // tell the memory segments where to place themselves
    }
    if (!env['tableBase']) {
      env['tableBase'] = 0; // table starts at 0 by default, in dynamic linking this will change
    }

    // try the methods. each should return the exports if it succeeded

    var exports;
    var methods = method.split(',');

    for (var i = 0; i < methods.length; i++) {
      var curr = methods[i];


      if (curr === 'native-wasm') {
        if (exports = doNativeWasm(global, env, providedBuffer)) break;
      } else if (curr === 'asmjs') {
        if (exports = doJustAsm(global, env, providedBuffer)) break;
      } else if (curr === 'interpret-asm2wasm' || curr === 'interpret-s-expr' || curr === 'interpret-binary') {
        if (exports = doWasmPolyfill(global, env, providedBuffer, curr)) break;
      } else {
        throw 'bad method: ' + curr;
      }
    }

    if (!exports) throw 'no binaryen method succeeded. consider enabling more options, like interpreting, if you want that: https://github.com/kripken/emscripten/wiki/WebAssembly#binaryen-methods';


    return exports;
  };

  var methodHandler = Module['asm']; // note our method handler, as we may modify Module['asm'] later
}

integrateWasmJS(Module);

// === Body ===

var ASM_CONSTS = [];




STATIC_BASE = Runtime.GLOBAL_BASE;

STATICTOP = STATIC_BASE + 2960400;
/* global initializers */  __ATINIT__.push();


memoryInitializer = Module["wasmJSMethod"].indexOf("asmjs") >= 0 || Module["wasmJSMethod"].indexOf("interpret-asm2wasm") >= 0 ? "ffmpeg-webm.js.mem" : null;




var STATIC_BUMP = 2960400;
Module["STATIC_BASE"] = STATIC_BASE;
Module["STATIC_BUMP"] = STATIC_BUMP;

/* no memory initializer */
var tempDoublePtr = STATICTOP; STATICTOP += 16;

assert(tempDoublePtr % 8 == 0);

function copyTempFloat(ptr) { // functions, because inlining this code increases code size too much

  HEAP8[tempDoublePtr] = HEAP8[ptr];

  HEAP8[tempDoublePtr+1] = HEAP8[ptr+1];

  HEAP8[tempDoublePtr+2] = HEAP8[ptr+2];

  HEAP8[tempDoublePtr+3] = HEAP8[ptr+3];

}

function copyTempDouble(ptr) {

  HEAP8[tempDoublePtr] = HEAP8[ptr];

  HEAP8[tempDoublePtr+1] = HEAP8[ptr+1];

  HEAP8[tempDoublePtr+2] = HEAP8[ptr+2];

  HEAP8[tempDoublePtr+3] = HEAP8[ptr+3];

  HEAP8[tempDoublePtr+4] = HEAP8[ptr+4];

  HEAP8[tempDoublePtr+5] = HEAP8[ptr+5];

  HEAP8[tempDoublePtr+6] = HEAP8[ptr+6];

  HEAP8[tempDoublePtr+7] = HEAP8[ptr+7];

}

// {{PRE_LIBRARY}}


   
  Module["_i64Subtract"] = _i64Subtract;

   
  Module["_i64Add"] = _i64Add;

  
  
  
  var ERRNO_CODES={EPERM:1,ENOENT:2,ESRCH:3,EINTR:4,EIO:5,ENXIO:6,E2BIG:7,ENOEXEC:8,EBADF:9,ECHILD:10,EAGAIN:11,EWOULDBLOCK:11,ENOMEM:12,EACCES:13,EFAULT:14,ENOTBLK:15,EBUSY:16,EEXIST:17,EXDEV:18,ENODEV:19,ENOTDIR:20,EISDIR:21,EINVAL:22,ENFILE:23,EMFILE:24,ENOTTY:25,ETXTBSY:26,EFBIG:27,ENOSPC:28,ESPIPE:29,EROFS:30,EMLINK:31,EPIPE:32,EDOM:33,ERANGE:34,ENOMSG:42,EIDRM:43,ECHRNG:44,EL2NSYNC:45,EL3HLT:46,EL3RST:47,ELNRNG:48,EUNATCH:49,ENOCSI:50,EL2HLT:51,EDEADLK:35,ENOLCK:37,EBADE:52,EBADR:53,EXFULL:54,ENOANO:55,EBADRQC:56,EBADSLT:57,EDEADLOCK:35,EBFONT:59,ENOSTR:60,ENODATA:61,ETIME:62,ENOSR:63,ENONET:64,ENOPKG:65,EREMOTE:66,ENOLINK:67,EADV:68,ESRMNT:69,ECOMM:70,EPROTO:71,EMULTIHOP:72,EDOTDOT:73,EBADMSG:74,ENOTUNIQ:76,EBADFD:77,EREMCHG:78,ELIBACC:79,ELIBBAD:80,ELIBSCN:81,ELIBMAX:82,ELIBEXEC:83,ENOSYS:38,ENOTEMPTY:39,ENAMETOOLONG:36,ELOOP:40,EOPNOTSUPP:95,EPFNOSUPPORT:96,ECONNRESET:104,ENOBUFS:105,EAFNOSUPPORT:97,EPROTOTYPE:91,ENOTSOCK:88,ENOPROTOOPT:92,ESHUTDOWN:108,ECONNREFUSED:111,EADDRINUSE:98,ECONNABORTED:103,ENETUNREACH:101,ENETDOWN:100,ETIMEDOUT:110,EHOSTDOWN:112,EHOSTUNREACH:113,EINPROGRESS:115,EALREADY:114,EDESTADDRREQ:89,EMSGSIZE:90,EPROTONOSUPPORT:93,ESOCKTNOSUPPORT:94,EADDRNOTAVAIL:99,ENETRESET:102,EISCONN:106,ENOTCONN:107,ETOOMANYREFS:109,EUSERS:87,EDQUOT:122,ESTALE:116,ENOTSUP:95,ENOMEDIUM:123,EILSEQ:84,EOVERFLOW:75,ECANCELED:125,ENOTRECOVERABLE:131,EOWNERDEAD:130,ESTRPIPE:86};
  
  var ERRNO_MESSAGES={0:"Success",1:"Not super-user",2:"No such file or directory",3:"No such process",4:"Interrupted system call",5:"I/O error",6:"No such device or address",7:"Arg list too long",8:"Exec format error",9:"Bad file number",10:"No children",11:"No more processes",12:"Not enough core",13:"Permission denied",14:"Bad address",15:"Block device required",16:"Mount device busy",17:"File exists",18:"Cross-device link",19:"No such device",20:"Not a directory",21:"Is a directory",22:"Invalid argument",23:"Too many open files in system",24:"Too many open files",25:"Not a typewriter",26:"Text file busy",27:"File too large",28:"No space left on device",29:"Illegal seek",30:"Read only file system",31:"Too many links",32:"Broken pipe",33:"Math arg out of domain of func",34:"Math result not representable",35:"File locking deadlock error",36:"File or path name too long",37:"No record locks available",38:"Function not implemented",39:"Directory not empty",40:"Too many symbolic links",42:"No message of desired type",43:"Identifier removed",44:"Channel number out of range",45:"Level 2 not synchronized",46:"Level 3 halted",47:"Level 3 reset",48:"Link number out of range",49:"Protocol driver not attached",50:"No CSI structure available",51:"Level 2 halted",52:"Invalid exchange",53:"Invalid request descriptor",54:"Exchange full",55:"No anode",56:"Invalid request code",57:"Invalid slot",59:"Bad font file fmt",60:"Device not a stream",61:"No data (for no delay io)",62:"Timer expired",63:"Out of streams resources",64:"Machine is not on the network",65:"Package not installed",66:"The object is remote",67:"The link has been severed",68:"Advertise error",69:"Srmount error",70:"Communication error on send",71:"Protocol error",72:"Multihop attempted",73:"Cross mount point (not really error)",74:"Trying to read unreadable message",75:"Value too large for defined data type",76:"Given log. name not unique",77:"f.d. invalid for this operation",78:"Remote address changed",79:"Can   access a needed shared lib",80:"Accessing a corrupted shared lib",81:".lib section in a.out corrupted",82:"Attempting to link in too many libs",83:"Attempting to exec a shared library",84:"Illegal byte sequence",86:"Streams pipe error",87:"Too many users",88:"Socket operation on non-socket",89:"Destination address required",90:"Message too long",91:"Protocol wrong type for socket",92:"Protocol not available",93:"Unknown protocol",94:"Socket type not supported",95:"Not supported",96:"Protocol family not supported",97:"Address family not supported by protocol family",98:"Address already in use",99:"Address not available",100:"Network interface is not configured",101:"Network is unreachable",102:"Connection reset by network",103:"Connection aborted",104:"Connection reset by peer",105:"No buffer space available",106:"Socket is already connected",107:"Socket is not connected",108:"Can't send after socket shutdown",109:"Too many references",110:"Connection timed out",111:"Connection refused",112:"Host is down",113:"Host is unreachable",114:"Socket already connected",115:"Connection already in progress",116:"Stale file handle",122:"Quota exceeded",123:"No medium (in tape drive)",125:"Operation canceled",130:"Previous owner died",131:"State not recoverable"};
  
  function ___setErrNo(value) {
      if (Module['___errno_location']) HEAP32[((Module['___errno_location']())>>2)]=value;
      else Module.printErr('failed to set errno from JS');
      return value;
    }
  
  var PATH={splitPath:function (filename) {
        var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
        return splitPathRe.exec(filename).slice(1);
      },normalizeArray:function (parts, allowAboveRoot) {
        // if the path tries to go above the root, `up` ends up > 0
        var up = 0;
        for (var i = parts.length - 1; i >= 0; i--) {
          var last = parts[i];
          if (last === '.') {
            parts.splice(i, 1);
          } else if (last === '..') {
            parts.splice(i, 1);
            up++;
          } else if (up) {
            parts.splice(i, 1);
            up--;
          }
        }
        // if the path is allowed to go above the root, restore leading ..s
        if (allowAboveRoot) {
          for (; up--; up) {
            parts.unshift('..');
          }
        }
        return parts;
      },normalize:function (path) {
        var isAbsolute = path.charAt(0) === '/',
            trailingSlash = path.substr(-1) === '/';
        // Normalize the path
        path = PATH.normalizeArray(path.split('/').filter(function(p) {
          return !!p;
        }), !isAbsolute).join('/');
        if (!path && !isAbsolute) {
          path = '.';
        }
        if (path && trailingSlash) {
          path += '/';
        }
        return (isAbsolute ? '/' : '') + path;
      },dirname:function (path) {
        var result = PATH.splitPath(path),
            root = result[0],
            dir = result[1];
        if (!root && !dir) {
          // No dirname whatsoever
          return '.';
        }
        if (dir) {
          // It has a dirname, strip trailing slash
          dir = dir.substr(0, dir.length - 1);
        }
        return root + dir;
      },basename:function (path) {
        // EMSCRIPTEN return '/'' for '/', not an empty string
        if (path === '/') return '/';
        var lastSlash = path.lastIndexOf('/');
        if (lastSlash === -1) return path;
        return path.substr(lastSlash+1);
      },extname:function (path) {
        return PATH.splitPath(path)[3];
      },join:function () {
        var paths = Array.prototype.slice.call(arguments, 0);
        return PATH.normalize(paths.join('/'));
      },join2:function (l, r) {
        return PATH.normalize(l + '/' + r);
      },resolve:function () {
        var resolvedPath = '',
          resolvedAbsolute = false;
        for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
          var path = (i >= 0) ? arguments[i] : FS.cwd();
          // Skip empty and invalid entries
          if (typeof path !== 'string') {
            throw new TypeError('Arguments to path.resolve must be strings');
          } else if (!path) {
            return ''; // an invalid portion invalidates the whole thing
          }
          resolvedPath = path + '/' + resolvedPath;
          resolvedAbsolute = path.charAt(0) === '/';
        }
        // At this point the path should be resolved to a full absolute path, but
        // handle relative paths to be safe (might happen when process.cwd() fails)
        resolvedPath = PATH.normalizeArray(resolvedPath.split('/').filter(function(p) {
          return !!p;
        }), !resolvedAbsolute).join('/');
        return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
      },relative:function (from, to) {
        from = PATH.resolve(from).substr(1);
        to = PATH.resolve(to).substr(1);
        function trim(arr) {
          var start = 0;
          for (; start < arr.length; start++) {
            if (arr[start] !== '') break;
          }
          var end = arr.length - 1;
          for (; end >= 0; end--) {
            if (arr[end] !== '') break;
          }
          if (start > end) return [];
          return arr.slice(start, end - start + 1);
        }
        var fromParts = trim(from.split('/'));
        var toParts = trim(to.split('/'));
        var length = Math.min(fromParts.length, toParts.length);
        var samePartsLength = length;
        for (var i = 0; i < length; i++) {
          if (fromParts[i] !== toParts[i]) {
            samePartsLength = i;
            break;
          }
        }
        var outputParts = [];
        for (var i = samePartsLength; i < fromParts.length; i++) {
          outputParts.push('..');
        }
        outputParts = outputParts.concat(toParts.slice(samePartsLength));
        return outputParts.join('/');
      }};
  
  var TTY={ttys:[],init:function () {
        // https://github.com/kripken/emscripten/pull/1555
        // if (ENVIRONMENT_IS_NODE) {
        //   // currently, FS.init does not distinguish if process.stdin is a file or TTY
        //   // device, it always assumes it's a TTY device. because of this, we're forcing
        //   // process.stdin to UTF8 encoding to at least make stdin reading compatible
        //   // with text files until FS.init can be refactored.
        //   process['stdin']['setEncoding']('utf8');
        // }
      },shutdown:function () {
        // https://github.com/kripken/emscripten/pull/1555
        // if (ENVIRONMENT_IS_NODE) {
        //   // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)?
        //   // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation
        //   // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists?
        //   // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle
        //   // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call
        //   process['stdin']['pause']();
        // }
      },register:function (dev, ops) {
        TTY.ttys[dev] = { input: [], output: [], ops: ops };
        FS.registerDevice(dev, TTY.stream_ops);
      },stream_ops:{open:function (stream) {
          var tty = TTY.ttys[stream.node.rdev];
          if (!tty) {
            throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
          }
          stream.tty = tty;
          stream.seekable = false;
        },close:function (stream) {
          // flush any pending line data
          stream.tty.ops.flush(stream.tty);
        },flush:function (stream) {
          stream.tty.ops.flush(stream.tty);
        },read:function (stream, buffer, offset, length, pos /* ignored */) {
          if (!stream.tty || !stream.tty.ops.get_char) {
            throw new FS.ErrnoError(ERRNO_CODES.ENXIO);
          }
          var bytesRead = 0;
          for (var i = 0; i < length; i++) {
            var result;
            try {
              result = stream.tty.ops.get_char(stream.tty);
            } catch (e) {
              throw new FS.ErrnoError(ERRNO_CODES.EIO);
            }
            if (result === undefined && bytesRead === 0) {
              throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
            }
            if (result === null || result === undefined) break;
            bytesRead++;
            buffer[offset+i] = result;
          }
          if (bytesRead) {
            stream.node.timestamp = Date.now();
          }
          return bytesRead;
        },write:function (stream, buffer, offset, length, pos) {
          if (!stream.tty || !stream.tty.ops.put_char) {
            throw new FS.ErrnoError(ERRNO_CODES.ENXIO);
          }
          for (var i = 0; i < length; i++) {
            try {
              stream.tty.ops.put_char(stream.tty, buffer[offset+i]);
            } catch (e) {
              throw new FS.ErrnoError(ERRNO_CODES.EIO);
            }
          }
          if (length) {
            stream.node.timestamp = Date.now();
          }
          return i;
        }},default_tty_ops:{get_char:function (tty) {
          if (!tty.input.length) {
            var result = null;
            if (ENVIRONMENT_IS_NODE) {
              // we will read data by chunks of BUFSIZE
              var BUFSIZE = 256;
              var buf = new Buffer(BUFSIZE);
              var bytesRead = 0;
  
              var isPosixPlatform = (process.platform != 'win32'); // Node doesn't offer a direct check, so test by exclusion
  
              var fd = process.stdin.fd;
              if (isPosixPlatform) {
                // Linux and Mac cannot use process.stdin.fd (which isn't set up as sync)
                var usingDevice = false;
                try {
                  fd = fs.openSync('/dev/stdin', 'r');
                  usingDevice = true;
                } catch (e) {}
              }
  
              try {
                bytesRead = fs.readSync(fd, buf, 0, BUFSIZE, null);
              } catch(e) {
                // Cross-platform differences: on Windows, reading EOF throws an exception, but on other OSes,
                // reading EOF returns 0. Uniformize behavior by treating the EOF exception to return 0.
                if (e.toString().indexOf('EOF') != -1) bytesRead = 0;
                else throw e;
              }
  
              if (usingDevice) { fs.closeSync(fd); }
              if (bytesRead > 0) {
                result = buf.slice(0, bytesRead).toString('utf-8');
              } else {
                result = null;
              }
  
            } else if (typeof window != 'undefined' &&
              typeof window.prompt == 'function') {
              // Browser.
              result = window.prompt('Input: ');  // returns null on cancel
              if (result !== null) {
                result += '\n';
              }
            } else if (typeof readline == 'function') {
              // Command line.
              result = readline();
              if (result !== null) {
                result += '\n';
              }
            }
            if (!result) {
              return null;
            }
            tty.input = intArrayFromString(result, true);
          }
          return tty.input.shift();
        },put_char:function (tty, val) {
          if (val === null || val === 10) {
            Module['print'](UTF8ArrayToString(tty.output, 0));
            tty.output = [];
          } else {
            if (val != 0) tty.output.push(val); // val == 0 would cut text output off in the middle.
          }
        },flush:function (tty) {
          if (tty.output && tty.output.length > 0) {
            Module['print'](UTF8ArrayToString(tty.output, 0));
            tty.output = [];
          }
        }},default_tty1_ops:{put_char:function (tty, val) {
          if (val === null || val === 10) {
            Module['printErr'](UTF8ArrayToString(tty.output, 0));
            tty.output = [];
          } else {
            if (val != 0) tty.output.push(val);
          }
        },flush:function (tty) {
          if (tty.output && tty.output.length > 0) {
            Module['printErr'](UTF8ArrayToString(tty.output, 0));
            tty.output = [];
          }
        }}};
  
  var MEMFS={ops_table:null,mount:function (mount) {
        return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0);
      },createNode:function (parent, name, mode, dev) {
        if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
          // no supported
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        }
        if (!MEMFS.ops_table) {
          MEMFS.ops_table = {
            dir: {
              node: {
                getattr: MEMFS.node_ops.getattr,
                setattr: MEMFS.node_ops.setattr,
                lookup: MEMFS.node_ops.lookup,
                mknod: MEMFS.node_ops.mknod,
                rename: MEMFS.node_ops.rename,
                unlink: MEMFS.node_ops.unlink,
                rmdir: MEMFS.node_ops.rmdir,
                readdir: MEMFS.node_ops.readdir,
                symlink: MEMFS.node_ops.symlink
              },
              stream: {
                llseek: MEMFS.stream_ops.llseek
              }
            },
            file: {
              node: {
                getattr: MEMFS.node_ops.getattr,
                setattr: MEMFS.node_ops.setattr
              },
              stream: {
                llseek: MEMFS.stream_ops.llseek,
                read: MEMFS.stream_ops.read,
                write: MEMFS.stream_ops.write,
                allocate: MEMFS.stream_ops.allocate,
                mmap: MEMFS.stream_ops.mmap,
                msync: MEMFS.stream_ops.msync
              }
            },
            link: {
              node: {
                getattr: MEMFS.node_ops.getattr,
                setattr: MEMFS.node_ops.setattr,
                readlink: MEMFS.node_ops.readlink
              },
              stream: {}
            },
            chrdev: {
              node: {
                getattr: MEMFS.node_ops.getattr,
                setattr: MEMFS.node_ops.setattr
              },
              stream: FS.chrdev_stream_ops
            }
          };
        }
        var node = FS.createNode(parent, name, mode, dev);
        if (FS.isDir(node.mode)) {
          node.node_ops = MEMFS.ops_table.dir.node;
          node.stream_ops = MEMFS.ops_table.dir.stream;
          node.contents = {};
        } else if (FS.isFile(node.mode)) {
          node.node_ops = MEMFS.ops_table.file.node;
          node.stream_ops = MEMFS.ops_table.file.stream;
          node.usedBytes = 0; // The actual number of bytes used in the typed array, as opposed to contents.length which gives the whole capacity.
          // When the byte data of the file is populated, this will point to either a typed array, or a normal JS array. Typed arrays are preferred
          // for performance, and used by default. However, typed arrays are not resizable like normal JS arrays are, so there is a small disk size
          // penalty involved for appending file writes that continuously grow a file similar to std::vector capacity vs used -scheme.
          node.contents = null; 
        } else if (FS.isLink(node.mode)) {
          node.node_ops = MEMFS.ops_table.link.node;
          node.stream_ops = MEMFS.ops_table.link.stream;
        } else if (FS.isChrdev(node.mode)) {
          node.node_ops = MEMFS.ops_table.chrdev.node;
          node.stream_ops = MEMFS.ops_table.chrdev.stream;
        }
        node.timestamp = Date.now();
        // add the new node to the parent
        if (parent) {
          parent.contents[name] = node;
        }
        return node;
      },getFileDataAsRegularArray:function (node) {
        if (node.contents && node.contents.subarray) {
          var arr = [];
          for (var i = 0; i < node.usedBytes; ++i) arr.push(node.contents[i]);
          return arr; // Returns a copy of the original data.
        }
        return node.contents; // No-op, the file contents are already in a JS array. Return as-is.
      },getFileDataAsTypedArray:function (node) {
        if (!node.contents) return new Uint8Array;
        if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes); // Make sure to not return excess unused bytes.
        return new Uint8Array(node.contents);
      },expandFileStorage:function (node, newCapacity) {
        // If we are asked to expand the size of a file that already exists, revert to using a standard JS array to store the file
        // instead of a typed array. This makes resizing the array more flexible because we can just .push() elements at the back to
        // increase the size.
        if (node.contents && node.contents.subarray && newCapacity > node.contents.length) {
          node.contents = MEMFS.getFileDataAsRegularArray(node);
          node.usedBytes = node.contents.length; // We might be writing to a lazy-loaded file which had overridden this property, so force-reset it.
        }
  
        if (!node.contents || node.contents.subarray) { // Keep using a typed array if creating a new storage, or if old one was a typed array as well.
          var prevCapacity = node.contents ? node.contents.length : 0;
          if (prevCapacity >= newCapacity) return; // No need to expand, the storage was already large enough.
          // Don't expand strictly to the given requested limit if it's only a very small increase, but instead geometrically grow capacity.
          // For small filesizes (<1MB), perform size*2 geometric increase, but for large sizes, do a much more conservative size*1.125 increase to
          // avoid overshooting the allocation cap by a very large margin.
          var CAPACITY_DOUBLING_MAX = 1024 * 1024;
          newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2.0 : 1.125)) | 0);
          if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256); // At minimum allocate 256b for each file when expanding.
          var oldContents = node.contents;
          node.contents = new Uint8Array(newCapacity); // Allocate new storage.
          if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0); // Copy old data over to the new storage.
          return;
        }
        // Not using a typed array to back the file storage. Use a standard JS array instead.
        if (!node.contents && newCapacity > 0) node.contents = [];
        while (node.contents.length < newCapacity) node.contents.push(0);
      },resizeFileStorage:function (node, newSize) {
        if (node.usedBytes == newSize) return;
        if (newSize == 0) {
          node.contents = null; // Fully decommit when requesting a resize to zero.
          node.usedBytes = 0;
          return;
        }
        if (!node.contents || node.contents.subarray) { // Resize a typed array if that is being used as the backing store.
          var oldContents = node.contents;
          node.contents = new Uint8Array(new ArrayBuffer(newSize)); // Allocate new storage.
          if (oldContents) {
            node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes))); // Copy old data over to the new storage.
          }
          node.usedBytes = newSize;
          return;
        }
        // Backing with a JS array.
        if (!node.contents) node.contents = [];
        if (node.contents.length > newSize) node.contents.length = newSize;
        else while (node.contents.length < newSize) node.contents.push(0);
        node.usedBytes = newSize;
      },node_ops:{getattr:function (node) {
          var attr = {};
          // device numbers reuse inode numbers.
          attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
          attr.ino = node.id;
          attr.mode = node.mode;
          attr.nlink = 1;
          attr.uid = 0;
          attr.gid = 0;
          attr.rdev = node.rdev;
          if (FS.isDir(node.mode)) {
            attr.size = 4096;
          } else if (FS.isFile(node.mode)) {
            attr.size = node.usedBytes;
          } else if (FS.isLink(node.mode)) {
            attr.size = node.link.length;
          } else {
            attr.size = 0;
          }
          attr.atime = new Date(node.timestamp);
          attr.mtime = new Date(node.timestamp);
          attr.ctime = new Date(node.timestamp);
          // NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize),
          //       but this is not required by the standard.
          attr.blksize = 4096;
          attr.blocks = Math.ceil(attr.size / attr.blksize);
          return attr;
        },setattr:function (node, attr) {
          if (attr.mode !== undefined) {
            node.mode = attr.mode;
          }
          if (attr.timestamp !== undefined) {
            node.timestamp = attr.timestamp;
          }
          if (attr.size !== undefined) {
            MEMFS.resizeFileStorage(node, attr.size);
          }
        },lookup:function (parent, name) {
          throw FS.genericErrors[ERRNO_CODES.ENOENT];
        },mknod:function (parent, name, mode, dev) {
          return MEMFS.createNode(parent, name, mode, dev);
        },rename:function (old_node, new_dir, new_name) {
          // if we're overwriting a directory at new_name, make sure it's empty.
          if (FS.isDir(old_node.mode)) {
            var new_node;
            try {
              new_node = FS.lookupNode(new_dir, new_name);
            } catch (e) {
            }
            if (new_node) {
              for (var i in new_node.contents) {
                throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
              }
            }
          }
          // do the internal rewiring
          delete old_node.parent.contents[old_node.name];
          old_node.name = new_name;
          new_dir.contents[new_name] = old_node;
          old_node.parent = new_dir;
        },unlink:function (parent, name) {
          delete parent.contents[name];
        },rmdir:function (parent, name) {
          var node = FS.lookupNode(parent, name);
          for (var i in node.contents) {
            throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
          }
          delete parent.contents[name];
        },readdir:function (node) {
          var entries = ['.', '..']
          for (var key in node.contents) {
            if (!node.contents.hasOwnProperty(key)) {
              continue;
            }
            entries.push(key);
          }
          return entries;
        },symlink:function (parent, newname, oldpath) {
          var node = MEMFS.createNode(parent, newname, 511 /* 0777 */ | 40960, 0);
          node.link = oldpath;
          return node;
        },readlink:function (node) {
          if (!FS.isLink(node.mode)) {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
          return node.link;
        }},stream_ops:{read:function (stream, buffer, offset, length, position) {
          var contents = stream.node.contents;
          if (position >= stream.node.usedBytes) return 0;
          var size = Math.min(stream.node.usedBytes - position, length);
          assert(size >= 0);
          if (size > 8 && contents.subarray) { // non-trivial, and typed array
            buffer.set(contents.subarray(position, position + size), offset);
          } else {
            for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i];
          }
          return size;
        },write:function (stream, buffer, offset, length, position, canOwn) {
          if (!length) return 0;
          var node = stream.node;
          node.timestamp = Date.now();
  
          if (buffer.subarray && (!node.contents || node.contents.subarray)) { // This write is from a typed array to a typed array?
            if (canOwn) {
              assert(position === 0, 'canOwn must imply no weird position inside the file');
              node.contents = buffer.subarray(offset, offset + length);
              node.usedBytes = length;
              return length;
            } else if (node.usedBytes === 0 && position === 0) { // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data.
              node.contents = new Uint8Array(buffer.subarray(offset, offset + length));
              node.usedBytes = length;
              return length;
            } else if (position + length <= node.usedBytes) { // Writing to an already allocated and used subrange of the file?
              node.contents.set(buffer.subarray(offset, offset + length), position);
              return length;
            }
          }
  
          // Appending to an existing file and we need to reallocate, or source data did not come as a typed array.
          MEMFS.expandFileStorage(node, position+length);
          if (node.contents.subarray && buffer.subarray) node.contents.set(buffer.subarray(offset, offset + length), position); // Use typed array write if available.
          else {
            for (var i = 0; i < length; i++) {
             node.contents[position + i] = buffer[offset + i]; // Or fall back to manual write if not.
            }
          }
          node.usedBytes = Math.max(node.usedBytes, position+length);
          return length;
        },llseek:function (stream, offset, whence) {
          var position = offset;
          if (whence === 1) {  // SEEK_CUR.
            position += stream.position;
          } else if (whence === 2) {  // SEEK_END.
            if (FS.isFile(stream.node.mode)) {
              position += stream.node.usedBytes;
            }
          }
          if (position < 0) {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
          return position;
        },allocate:function (stream, offset, length) {
          MEMFS.expandFileStorage(stream.node, offset + length);
          stream.node.usedBytes = Math.max(stream.node.usedBytes, offset + length);
        },mmap:function (stream, buffer, offset, length, position, prot, flags) {
          if (!FS.isFile(stream.node.mode)) {
            throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
          }
          var ptr;
          var allocated;
          var contents = stream.node.contents;
          // Only make a new copy when MAP_PRIVATE is specified.
          if ( !(flags & 2) &&
                (contents.buffer === buffer || contents.buffer === buffer.buffer) ) {
            // We can't emulate MAP_SHARED when the file is not backed by the buffer
            // we're mapping to (e.g. the HEAP buffer).
            allocated = false;
            ptr = contents.byteOffset;
          } else {
            // Try to avoid unnecessary slices.
            if (position > 0 || position + length < stream.node.usedBytes) {
              if (contents.subarray) {
                contents = contents.subarray(position, position + length);
              } else {
                contents = Array.prototype.slice.call(contents, position, position + length);
              }
            }
            allocated = true;
            ptr = _malloc(length);
            if (!ptr) {
              throw new FS.ErrnoError(ERRNO_CODES.ENOMEM);
            }
            buffer.set(contents, ptr);
          }
          return { ptr: ptr, allocated: allocated };
        },msync:function (stream, buffer, offset, length, mmapFlags) {
          if (!FS.isFile(stream.node.mode)) {
            throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
          }
          if (mmapFlags & 2) {
            // MAP_PRIVATE calls need not to be synced back to underlying fs
            return 0;
          }
  
          var bytesWritten = MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
          // should we check if bytesWritten and length are the same?
          return 0;
        }}};
  
  var IDBFS={dbs:{},indexedDB:function () {
        if (typeof indexedDB !== 'undefined') return indexedDB;
        var ret = null;
        if (typeof window === 'object') ret = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
        assert(ret, 'IDBFS used, but indexedDB not supported');
        return ret;
      },DB_VERSION:21,DB_STORE_NAME:"FILE_DATA",mount:function (mount) {
        // reuse all of the core MEMFS functionality
        return MEMFS.mount.apply(null, arguments);
      },syncfs:function (mount, populate, callback) {
        IDBFS.getLocalSet(mount, function(err, local) {
          if (err) return callback(err);
  
          IDBFS.getRemoteSet(mount, function(err, remote) {
            if (err) return callback(err);
  
            var src = populate ? remote : local;
            var dst = populate ? local : remote;
  
            IDBFS.reconcile(src, dst, callback);
          });
        });
      },getDB:function (name, callback) {
        // check the cache first
        var db = IDBFS.dbs[name];
        if (db) {
          return callback(null, db);
        }
  
        var req;
        try {
          req = IDBFS.indexedDB().open(name, IDBFS.DB_VERSION);
        } catch (e) {
          return callback(e);
        }
        if (!req) {
          return callback("Unable to connect to IndexedDB");
        }
        req.onupgradeneeded = function(e) {
          var db = e.target.result;
          var transaction = e.target.transaction;
  
          var fileStore;
  
          if (db.objectStoreNames.contains(IDBFS.DB_STORE_NAME)) {
            fileStore = transaction.objectStore(IDBFS.DB_STORE_NAME);
          } else {
            fileStore = db.createObjectStore(IDBFS.DB_STORE_NAME);
          }
  
          if (!fileStore.indexNames.contains('timestamp')) {
            fileStore.createIndex('timestamp', 'timestamp', { unique: false });
          }
        };
        req.onsuccess = function() {
          db = req.result;
  
          // add to the cache
          IDBFS.dbs[name] = db;
          callback(null, db);
        };
        req.onerror = function(e) {
          callback(this.error);
          e.preventDefault();
        };
      },getLocalSet:function (mount, callback) {
        var entries = {};
  
        function isRealDir(p) {
          return p !== '.' && p !== '..';
        };
        function toAbsolute(root) {
          return function(p) {
            return PATH.join2(root, p);
          }
        };
  
        var check = FS.readdir(mount.mountpoint).filter(isRealDir).map(toAbsolute(mount.mountpoint));
  
        while (check.length) {
          var path = check.pop();
          var stat;
  
          try {
            stat = FS.stat(path);
          } catch (e) {
            return callback(e);
          }
  
          if (FS.isDir(stat.mode)) {
            check.push.apply(check, FS.readdir(path).filter(isRealDir).map(toAbsolute(path)));
          }
  
          entries[path] = { timestamp: stat.mtime };
        }
  
        return callback(null, { type: 'local', entries: entries });
      },getRemoteSet:function (mount, callback) {
        var entries = {};
  
        IDBFS.getDB(mount.mountpoint, function(err, db) {
          if (err) return callback(err);
  
          var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readonly');
          transaction.onerror = function(e) {
            callback(this.error);
            e.preventDefault();
          };
  
          var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
          var index = store.index('timestamp');
  
          index.openKeyCursor().onsuccess = function(event) {
            var cursor = event.target.result;
  
            if (!cursor) {
              return callback(null, { type: 'remote', db: db, entries: entries });
            }
  
            entries[cursor.primaryKey] = { timestamp: cursor.key };
  
            cursor.continue();
          };
        });
      },loadLocalEntry:function (path, callback) {
        var stat, node;
  
        try {
          var lookup = FS.lookupPath(path);
          node = lookup.node;
          stat = FS.stat(path);
        } catch (e) {
          return callback(e);
        }
  
        if (FS.isDir(stat.mode)) {
          return callback(null, { timestamp: stat.mtime, mode: stat.mode });
        } else if (FS.isFile(stat.mode)) {
          // Performance consideration: storing a normal JavaScript array to a IndexedDB is much slower than storing a typed array.
          // Therefore always convert the file contents to a typed array first before writing the data to IndexedDB.
          node.contents = MEMFS.getFileDataAsTypedArray(node);
          return callback(null, { timestamp: stat.mtime, mode: stat.mode, contents: node.contents });
        } else {
          return callback(new Error('node type not supported'));
        }
      },storeLocalEntry:function (path, entry, callback) {
        try {
          if (FS.isDir(entry.mode)) {
            FS.mkdir(path, entry.mode);
          } else if (FS.isFile(entry.mode)) {
            FS.writeFile(path, entry.contents, { encoding: 'binary', canOwn: true });
          } else {
            return callback(new Error('node type not supported'));
          }
  
          FS.chmod(path, entry.mode);
          FS.utime(path, entry.timestamp, entry.timestamp);
        } catch (e) {
          return callback(e);
        }
  
        callback(null);
      },removeLocalEntry:function (path, callback) {
        try {
          var lookup = FS.lookupPath(path);
          var stat = FS.stat(path);
  
          if (FS.isDir(stat.mode)) {
            FS.rmdir(path);
          } else if (FS.isFile(stat.mode)) {
            FS.unlink(path);
          }
        } catch (e) {
          return callback(e);
        }
  
        callback(null);
      },loadRemoteEntry:function (store, path, callback) {
        var req = store.get(path);
        req.onsuccess = function(event) { callback(null, event.target.result); };
        req.onerror = function(e) {
          callback(this.error);
          e.preventDefault();
        };
      },storeRemoteEntry:function (store, path, entry, callback) {
        var req = store.put(entry, path);
        req.onsuccess = function() { callback(null); };
        req.onerror = function(e) {
          callback(this.error);
          e.preventDefault();
        };
      },removeRemoteEntry:function (store, path, callback) {
        var req = store.delete(path);
        req.onsuccess = function() { callback(null); };
        req.onerror = function(e) {
          callback(this.error);
          e.preventDefault();
        };
      },reconcile:function (src, dst, callback) {
        var total = 0;
  
        var create = [];
        Object.keys(src.entries).forEach(function (key) {
          var e = src.entries[key];
          var e2 = dst.entries[key];
          if (!e2 || e.timestamp > e2.timestamp) {
            create.push(key);
            total++;
          }
        });
  
        var remove = [];
        Object.keys(dst.entries).forEach(function (key) {
          var e = dst.entries[key];
          var e2 = src.entries[key];
          if (!e2) {
            remove.push(key);
            total++;
          }
        });
  
        if (!total) {
          return callback(null);
        }
  
        var errored = false;
        var completed = 0;
        var db = src.type === 'remote' ? src.db : dst.db;
        var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readwrite');
        var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
  
        function done(err) {
          if (err) {
            if (!done.errored) {
              done.errored = true;
              return callback(err);
            }
            return;
          }
          if (++completed >= total) {
            return callback(null);
          }
        };
  
        transaction.onerror = function(e) {
          done(this.error);
          e.preventDefault();
        };
  
        // sort paths in ascending order so directory entries are created
        // before the files inside them
        create.sort().forEach(function (path) {
          if (dst.type === 'local') {
            IDBFS.loadRemoteEntry(store, path, function (err, entry) {
              if (err) return done(err);
              IDBFS.storeLocalEntry(path, entry, done);
            });
          } else {
            IDBFS.loadLocalEntry(path, function (err, entry) {
              if (err) return done(err);
              IDBFS.storeRemoteEntry(store, path, entry, done);
            });
          }
        });
  
        // sort paths in descending order so files are deleted before their
        // parent directories
        remove.sort().reverse().forEach(function(path) {
          if (dst.type === 'local') {
            IDBFS.removeLocalEntry(path, done);
          } else {
            IDBFS.removeRemoteEntry(store, path, done);
          }
        });
      }};
  
  var NODEFS={isWindows:false,staticInit:function () {
        NODEFS.isWindows = !!process.platform.match(/^win/);
      },mount:function (mount) {
        assert(ENVIRONMENT_IS_NODE);
        return NODEFS.createNode(null, '/', NODEFS.getMode(mount.opts.root), 0);
      },createNode:function (parent, name, mode, dev) {
        if (!FS.isDir(mode) && !FS.isFile(mode) && !FS.isLink(mode)) {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
        var node = FS.createNode(parent, name, mode);
        node.node_ops = NODEFS.node_ops;
        node.stream_ops = NODEFS.stream_ops;
        return node;
      },getMode:function (path) {
        var stat;
        try {
          stat = fs.lstatSync(path);
          if (NODEFS.isWindows) {
            // On Windows, directories return permission bits 'rw-rw-rw-', even though they have 'rwxrwxrwx', so
            // propagate write bits to execute bits.
            stat.mode = stat.mode | ((stat.mode & 146) >> 1);
          }
        } catch (e) {
          if (!e.code) throw e;
          throw new FS.ErrnoError(ERRNO_CODES[e.code]);
        }
        return stat.mode;
      },realPath:function (node) {
        var parts = [];
        while (node.parent !== node) {
          parts.push(node.name);
          node = node.parent;
        }
        parts.push(node.mount.opts.root);
        parts.reverse();
        return PATH.join.apply(null, parts);
      },flagsToPermissionStringMap:{0:"r",1:"r+",2:"r+",64:"r",65:"r+",66:"r+",129:"rx+",193:"rx+",514:"w+",577:"w",578:"w+",705:"wx",706:"wx+",1024:"a",1025:"a",1026:"a+",1089:"a",1090:"a+",1153:"ax",1154:"ax+",1217:"ax",1218:"ax+",4096:"rs",4098:"rs+"},flagsToPermissionString:function (flags) {
        flags &= ~0x200000 /*O_PATH*/; // Ignore this flag from musl, otherwise node.js fails to open the file.
        flags &= ~0x800 /*O_NONBLOCK*/; // Ignore this flag from musl, otherwise node.js fails to open the file.
        flags &= ~0x8000 /*O_LARGEFILE*/; // Ignore this flag from musl, otherwise node.js fails to open the file.
        flags &= ~0x80000 /*O_CLOEXEC*/; // Some applications may pass it; it makes no sense for a single process.
        if (flags in NODEFS.flagsToPermissionStringMap) {
          return NODEFS.flagsToPermissionStringMap[flags];
        } else {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
      },node_ops:{getattr:function (node) {
          var path = NODEFS.realPath(node);
          var stat;
          try {
            stat = fs.lstatSync(path);
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
          // node.js v0.10.20 doesn't report blksize and blocks on Windows. Fake them with default blksize of 4096.
          // See http://support.microsoft.com/kb/140365
          if (NODEFS.isWindows && !stat.blksize) {
            stat.blksize = 4096;
          }
          if (NODEFS.isWindows && !stat.blocks) {
            stat.blocks = (stat.size+stat.blksize-1)/stat.blksize|0;
          }
          return {
            dev: stat.dev,
            ino: stat.ino,
            mode: stat.mode,
            nlink: stat.nlink,
            uid: stat.uid,
            gid: stat.gid,
            rdev: stat.rdev,
            size: stat.size,
            atime: stat.atime,
            mtime: stat.mtime,
            ctime: stat.ctime,
            blksize: stat.blksize,
            blocks: stat.blocks
          };
        },setattr:function (node, attr) {
          var path = NODEFS.realPath(node);
          try {
            if (attr.mode !== undefined) {
              fs.chmodSync(path, attr.mode);
              // update the common node structure mode as well
              node.mode = attr.mode;
            }
            if (attr.timestamp !== undefined) {
              var date = new Date(attr.timestamp);
              fs.utimesSync(path, date, date);
            }
            if (attr.size !== undefined) {
              fs.truncateSync(path, attr.size);
            }
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
        },lookup:function (parent, name) {
          var path = PATH.join2(NODEFS.realPath(parent), name);
          var mode = NODEFS.getMode(path);
          return NODEFS.createNode(parent, name, mode);
        },mknod:function (parent, name, mode, dev) {
          var node = NODEFS.createNode(parent, name, mode, dev);
          // create the backing node for this in the fs root as well
          var path = NODEFS.realPath(node);
          try {
            if (FS.isDir(node.mode)) {
              fs.mkdirSync(path, node.mode);
            } else {
              fs.writeFileSync(path, '', { mode: node.mode });
            }
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
          return node;
        },rename:function (oldNode, newDir, newName) {
          var oldPath = NODEFS.realPath(oldNode);
          var newPath = PATH.join2(NODEFS.realPath(newDir), newName);
          try {
            fs.renameSync(oldPath, newPath);
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
        },unlink:function (parent, name) {
          var path = PATH.join2(NODEFS.realPath(parent), name);
          try {
            fs.unlinkSync(path);
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
        },rmdir:function (parent, name) {
          var path = PATH.join2(NODEFS.realPath(parent), name);
          try {
            fs.rmdirSync(path);
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
        },readdir:function (node) {
          var path = NODEFS.realPath(node);
          try {
            return fs.readdirSync(path);
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
        },symlink:function (parent, newName, oldPath) {
          var newPath = PATH.join2(NODEFS.realPath(parent), newName);
          try {
            fs.symlinkSync(oldPath, newPath);
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
        },readlink:function (node) {
          var path = NODEFS.realPath(node);
          try {
            path = fs.readlinkSync(path);
            path = NODEJS_PATH.relative(NODEJS_PATH.resolve(node.mount.opts.root), path);
            return path;
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
        }},stream_ops:{open:function (stream) {
          var path = NODEFS.realPath(stream.node);
          try {
            if (FS.isFile(stream.node.mode)) {
              stream.nfd = fs.openSync(path, NODEFS.flagsToPermissionString(stream.flags));
            }
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
        },close:function (stream) {
          try {
            if (FS.isFile(stream.node.mode) && stream.nfd) {
              fs.closeSync(stream.nfd);
            }
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
        },read:function (stream, buffer, offset, length, position) {
          if (length === 0) return 0; // node errors on 0 length reads
          // FIXME this is terrible.
          var nbuffer = new Buffer(length);
          var res;
          try {
            res = fs.readSync(stream.nfd, nbuffer, 0, length, position);
          } catch (e) {
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
          if (res > 0) {
            for (var i = 0; i < res; i++) {
              buffer[offset + i] = nbuffer[i];
            }
          }
          return res;
        },write:function (stream, buffer, offset, length, position) {
          // FIXME this is terrible.
          var nbuffer = new Buffer(buffer.subarray(offset, offset + length));
          var res;
          try {
            res = fs.writeSync(stream.nfd, nbuffer, 0, length, position);
          } catch (e) {
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
          return res;
        },llseek:function (stream, offset, whence) {
          var position = offset;
          if (whence === 1) {  // SEEK_CUR.
            position += stream.position;
          } else if (whence === 2) {  // SEEK_END.
            if (FS.isFile(stream.node.mode)) {
              try {
                var stat = fs.fstatSync(stream.nfd);
                position += stat.size;
              } catch (e) {
                throw new FS.ErrnoError(ERRNO_CODES[e.code]);
              }
            }
          }
  
          if (position < 0) {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
  
          return position;
        }}};
  
  var WORKERFS={DIR_MODE:16895,FILE_MODE:33279,reader:null,mount:function (mount) {
        assert(ENVIRONMENT_IS_WORKER);
        if (!WORKERFS.reader) WORKERFS.reader = new FileReaderSync();
        var root = WORKERFS.createNode(null, '/', WORKERFS.DIR_MODE, 0);
        var createdParents = {};
        function ensureParent(path) {
          // return the parent node, creating subdirs as necessary
          var parts = path.split('/');
          var parent = root;
          for (var i = 0; i < parts.length-1; i++) {
            var curr = parts.slice(0, i+1).join('/');
            // Issue 4254: Using curr as a node name will prevent the node
            // from being found in FS.nameTable when FS.open is called on
            // a path which holds a child of this node,
            // given that all FS functions assume node names
            // are just their corresponding parts within their given path,
            // rather than incremental aggregates which include their parent's
            // directories.
            if (!createdParents[curr]) {
              createdParents[curr] = WORKERFS.createNode(parent, parts[i], WORKERFS.DIR_MODE, 0);
            }
            parent = createdParents[curr];
          }
          return parent;
        }
        function base(path) {
          var parts = path.split('/');
          return parts[parts.length-1];
        }
        // We also accept FileList here, by using Array.prototype
        Array.prototype.forEach.call(mount.opts["files"] || [], function(file) {
          WORKERFS.createNode(ensureParent(file.name), base(file.name), WORKERFS.FILE_MODE, 0, file, file.lastModifiedDate);
        });
        (mount.opts["blobs"] || []).forEach(function(obj) {
          WORKERFS.createNode(ensureParent(obj["name"]), base(obj["name"]), WORKERFS.FILE_MODE, 0, obj["data"]);
        });
        (mount.opts["packages"] || []).forEach(function(pack) {
          pack['metadata'].files.forEach(function(file) {
            var name = file.filename.substr(1); // remove initial slash
            WORKERFS.createNode(ensureParent(name), base(name), WORKERFS.FILE_MODE, 0, pack['blob'].slice(file.start, file.end));
          });
        });
        return root;
      },createNode:function (parent, name, mode, dev, contents, mtime) {
        var node = FS.createNode(parent, name, mode);
        node.mode = mode;
        node.node_ops = WORKERFS.node_ops;
        node.stream_ops = WORKERFS.stream_ops;
        node.timestamp = (mtime || new Date).getTime();
        assert(WORKERFS.FILE_MODE !== WORKERFS.DIR_MODE);
        if (mode === WORKERFS.FILE_MODE) {
          node.size = contents.size;
          node.contents = contents;
        } else {
          node.size = 4096;
          node.contents = {};
        }
        if (parent) {
          parent.contents[name] = node;
        }
        return node;
      },node_ops:{getattr:function (node) {
          return {
            dev: 1,
            ino: undefined,
            mode: node.mode,
            nlink: 1,
            uid: 0,
            gid: 0,
            rdev: undefined,
            size: node.size,
            atime: new Date(node.timestamp),
            mtime: new Date(node.timestamp),
            ctime: new Date(node.timestamp),
            blksize: 4096,
            blocks: Math.ceil(node.size / 4096),
          };
        },setattr:function (node, attr) {
          if (attr.mode !== undefined) {
            node.mode = attr.mode;
          }
          if (attr.timestamp !== undefined) {
            node.timestamp = attr.timestamp;
          }
        },lookup:function (parent, name) {
          throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
        },mknod:function (parent, name, mode, dev) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        },rename:function (oldNode, newDir, newName) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        },unlink:function (parent, name) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        },rmdir:function (parent, name) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        },readdir:function (node) {
          var entries = ['.', '..'];
          for (var key in node.contents) {
            if (!node.contents.hasOwnProperty(key)) {
              continue;
            }
            entries.push(key);
          }
          return entries;
        },symlink:function (parent, newName, oldPath) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        },readlink:function (node) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        }},stream_ops:{read:function (stream, buffer, offset, length, position) {
          if (position >= stream.node.size) return 0;
          var chunk = stream.node.contents.slice(position, position + length);
          var ab = WORKERFS.reader.readAsArrayBuffer(chunk);
          buffer.set(new Uint8Array(ab), offset);
          return chunk.size;
        },write:function (stream, buffer, offset, length, position) {
          throw new FS.ErrnoError(ERRNO_CODES.EIO);
        },llseek:function (stream, offset, whence) {
          var position = offset;
          if (whence === 1) {  // SEEK_CUR.
            position += stream.position;
          } else if (whence === 2) {  // SEEK_END.
            if (FS.isFile(stream.node.mode)) {
              position += stream.node.size;
            }
          }
          if (position < 0) {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
          return position;
        }}};
  
  var _stdin=STATICTOP; STATICTOP += 16;;
  
  var _stdout=STATICTOP; STATICTOP += 16;;
  
  var _stderr=STATICTOP; STATICTOP += 16;;var FS={root:null,mounts:[],devices:[null],streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,trackingDelegate:{},tracking:{openFlags:{READ:1,WRITE:2}},ErrnoError:null,genericErrors:{},filesystems:null,syncFSRequests:0,handleFSError:function (e) {
        if (!(e instanceof FS.ErrnoError)) throw e + ' : ' + stackTrace();
        return ___setErrNo(e.errno);
      },lookupPath:function (path, opts) {
        path = PATH.resolve(FS.cwd(), path);
        opts = opts || {};
  
        if (!path) return { path: '', node: null };
  
        var defaults = {
          follow_mount: true,
          recurse_count: 0
        };
        for (var key in defaults) {
          if (opts[key] === undefined) {
            opts[key] = defaults[key];
          }
        }
  
        if (opts.recurse_count > 8) {  // max recursive lookup of 8
          throw new FS.ErrnoError(ERRNO_CODES.ELOOP);
        }
  
        // split the path
        var parts = PATH.normalizeArray(path.split('/').filter(function(p) {
          return !!p;
        }), false);
  
        // start at the root
        var current = FS.root;
        var current_path = '/';
  
        for (var i = 0; i < parts.length; i++) {
          var islast = (i === parts.length-1);
          if (islast && opts.parent) {
            // stop resolving
            break;
          }
  
          current = FS.lookupNode(current, parts[i]);
          current_path = PATH.join2(current_path, parts[i]);
  
          // jump to the mount's root node if this is a mountpoint
          if (FS.isMountpoint(current)) {
            if (!islast || (islast && opts.follow_mount)) {
              current = current.mounted.root;
            }
          }
  
          // by default, lookupPath will not follow a symlink if it is the final path component.
          // setting opts.follow = true will override this behavior.
          if (!islast || opts.follow) {
            var count = 0;
            while (FS.isLink(current.mode)) {
              var link = FS.readlink(current_path);
              current_path = PATH.resolve(PATH.dirname(current_path), link);
  
              var lookup = FS.lookupPath(current_path, { recurse_count: opts.recurse_count });
              current = lookup.node;
  
              if (count++ > 40) {  // limit max consecutive symlinks to 40 (SYMLOOP_MAX).
                throw new FS.ErrnoError(ERRNO_CODES.ELOOP);
              }
            }
          }
        }
  
        return { path: current_path, node: current };
      },getPath:function (node) {
        var path;
        while (true) {
          if (FS.isRoot(node)) {
            var mount = node.mount.mountpoint;
            if (!path) return mount;
            return mount[mount.length-1] !== '/' ? mount + '/' + path : mount + path;
          }
          path = path ? node.name + '/' + path : node.name;
          node = node.parent;
        }
      },hashName:function (parentid, name) {
        var hash = 0;
  
  
        for (var i = 0; i < name.length; i++) {
          hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
        }
        return ((parentid + hash) >>> 0) % FS.nameTable.length;
      },hashAddNode:function (node) {
        var hash = FS.hashName(node.parent.id, node.name);
        node.name_next = FS.nameTable[hash];
        FS.nameTable[hash] = node;
      },hashRemoveNode:function (node) {
        var hash = FS.hashName(node.parent.id, node.name);
        if (FS.nameTable[hash] === node) {
          FS.nameTable[hash] = node.name_next;
        } else {
          var current = FS.nameTable[hash];
          while (current) {
            if (current.name_next === node) {
              current.name_next = node.name_next;
              break;
            }
            current = current.name_next;
          }
        }
      },lookupNode:function (parent, name) {
        var err = FS.mayLookup(parent);
        if (err) {
          throw new FS.ErrnoError(err, parent);
        }
        var hash = FS.hashName(parent.id, name);
        for (var node = FS.nameTable[hash]; node; node = node.name_next) {
          var nodeName = node.name;
          if (node.parent.id === parent.id && nodeName === name) {
            return node;
          }
        }
        // if we failed to find it in the cache, call into the VFS
        return FS.lookup(parent, name);
      },createNode:function (parent, name, mode, rdev) {
        if (!FS.FSNode) {
          FS.FSNode = function(parent, name, mode, rdev) {
            if (!parent) {
              parent = this;  // root node sets parent to itself
            }
            this.parent = parent;
            this.mount = parent.mount;
            this.mounted = null;
            this.id = FS.nextInode++;
            this.name = name;
            this.mode = mode;
            this.node_ops = {};
            this.stream_ops = {};
            this.rdev = rdev;
          };
  
          FS.FSNode.prototype = {};
  
          // compatibility
          var readMode = 292 | 73;
          var writeMode = 146;
  
          // NOTE we must use Object.defineProperties instead of individual calls to
          // Object.defineProperty in order to make closure compiler happy
          Object.defineProperties(FS.FSNode.prototype, {
            read: {
              get: function() { return (this.mode & readMode) === readMode; },
              set: function(val) { val ? this.mode |= readMode : this.mode &= ~readMode; }
            },
            write: {
              get: function() { return (this.mode & writeMode) === writeMode; },
              set: function(val) { val ? this.mode |= writeMode : this.mode &= ~writeMode; }
            },
            isFolder: {
              get: function() { return FS.isDir(this.mode); }
            },
            isDevice: {
              get: function() { return FS.isChrdev(this.mode); }
            }
          });
        }
  
        var node = new FS.FSNode(parent, name, mode, rdev);
  
        FS.hashAddNode(node);
  
        return node;
      },destroyNode:function (node) {
        FS.hashRemoveNode(node);
      },isRoot:function (node) {
        return node === node.parent;
      },isMountpoint:function (node) {
        return !!node.mounted;
      },isFile:function (mode) {
        return (mode & 61440) === 32768;
      },isDir:function (mode) {
        return (mode & 61440) === 16384;
      },isLink:function (mode) {
        return (mode & 61440) === 40960;
      },isChrdev:function (mode) {
        return (mode & 61440) === 8192;
      },isBlkdev:function (mode) {
        return (mode & 61440) === 24576;
      },isFIFO:function (mode) {
        return (mode & 61440) === 4096;
      },isSocket:function (mode) {
        return (mode & 49152) === 49152;
      },flagModes:{"r":0,"rs":1052672,"r+":2,"w":577,"wx":705,"xw":705,"w+":578,"wx+":706,"xw+":706,"a":1089,"ax":1217,"xa":1217,"a+":1090,"ax+":1218,"xa+":1218},modeStringToFlags:function (str) {
        var flags = FS.flagModes[str];
        if (typeof flags === 'undefined') {
          throw new Error('Unknown file open mode: ' + str);
        }
        return flags;
      },flagsToPermissionString:function (flag) {
        var perms = ['r', 'w', 'rw'][flag & 3];
        if ((flag & 512)) {
          perms += 'w';
        }
        return perms;
      },nodePermissions:function (node, perms) {
        if (FS.ignorePermissions) {
          return 0;
        }
        // return 0 if any user, group or owner bits are set.
        if (perms.indexOf('r') !== -1 && !(node.mode & 292)) {
          return ERRNO_CODES.EACCES;
        } else if (perms.indexOf('w') !== -1 && !(node.mode & 146)) {
          return ERRNO_CODES.EACCES;
        } else if (perms.indexOf('x') !== -1 && !(node.mode & 73)) {
          return ERRNO_CODES.EACCES;
        }
        return 0;
      },mayLookup:function (dir) {
        var err = FS.nodePermissions(dir, 'x');
        if (err) return err;
        if (!dir.node_ops.lookup) return ERRNO_CODES.EACCES;
        return 0;
      },mayCreate:function (dir, name) {
        try {
          var node = FS.lookupNode(dir, name);
          return ERRNO_CODES.EEXIST;
        } catch (e) {
        }
        return FS.nodePermissions(dir, 'wx');
      },mayDelete:function (dir, name, isdir) {
        var node;
        try {
          node = FS.lookupNode(dir, name);
        } catch (e) {
          return e.errno;
        }
        var err = FS.nodePermissions(dir, 'wx');
        if (err) {
          return err;
        }
        if (isdir) {
          if (!FS.isDir(node.mode)) {
            return ERRNO_CODES.ENOTDIR;
          }
          if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
            return ERRNO_CODES.EBUSY;
          }
        } else {
          if (FS.isDir(node.mode)) {
            return ERRNO_CODES.EISDIR;
          }
        }
        return 0;
      },mayOpen:function (node, flags) {
        if (!node) {
          return ERRNO_CODES.ENOENT;
        }
        if (FS.isLink(node.mode)) {
          return ERRNO_CODES.ELOOP;
        } else if (FS.isDir(node.mode)) {
          if (FS.flagsToPermissionString(flags) !== 'r' || // opening for write
              (flags & 512)) { // TODO: check for O_SEARCH? (== search for dir only)
            return ERRNO_CODES.EISDIR;
          }
        }
        return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
      },MAX_OPEN_FDS:4096,nextfd:function (fd_start, fd_end) {
        fd_start = fd_start || 0;
        fd_end = fd_end || FS.MAX_OPEN_FDS;
        for (var fd = fd_start; fd <= fd_end; fd++) {
          if (!FS.streams[fd]) {
            return fd;
          }
        }
        throw new FS.ErrnoError(ERRNO_CODES.EMFILE);
      },getStream:function (fd) {
        return FS.streams[fd];
      },createStream:function (stream, fd_start, fd_end) {
        if (!FS.FSStream) {
          FS.FSStream = function(){};
          FS.FSStream.prototype = {};
          // compatibility
          Object.defineProperties(FS.FSStream.prototype, {
            object: {
              get: function() { return this.node; },
              set: function(val) { this.node = val; }
            },
            isRead: {
              get: function() { return (this.flags & 2097155) !== 1; }
            },
            isWrite: {
              get: function() { return (this.flags & 2097155) !== 0; }
            },
            isAppend: {
              get: function() { return (this.flags & 1024); }
            }
          });
        }
        // clone it, so we can return an instance of FSStream
        var newStream = new FS.FSStream();
        for (var p in stream) {
          newStream[p] = stream[p];
        }
        stream = newStream;
        var fd = FS.nextfd(fd_start, fd_end);
        stream.fd = fd;
        FS.streams[fd] = stream;
        return stream;
      },closeStream:function (fd) {
        FS.streams[fd] = null;
      },chrdev_stream_ops:{open:function (stream) {
          var device = FS.getDevice(stream.node.rdev);
          // override node's stream ops with the device's
          stream.stream_ops = device.stream_ops;
          // forward the open call
          if (stream.stream_ops.open) {
            stream.stream_ops.open(stream);
          }
        },llseek:function () {
          throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
        }},major:function (dev) {
        return ((dev) >> 8);
      },minor:function (dev) {
        return ((dev) & 0xff);
      },makedev:function (ma, mi) {
        return ((ma) << 8 | (mi));
      },registerDevice:function (dev, ops) {
        FS.devices[dev] = { stream_ops: ops };
      },getDevice:function (dev) {
        return FS.devices[dev];
      },getMounts:function (mount) {
        var mounts = [];
        var check = [mount];
  
        while (check.length) {
          var m = check.pop();
  
          mounts.push(m);
  
          check.push.apply(check, m.mounts);
        }
  
        return mounts;
      },syncfs:function (populate, callback) {
        if (typeof(populate) === 'function') {
          callback = populate;
          populate = false;
        }
  
        FS.syncFSRequests++;
  
        if (FS.syncFSRequests > 1) {
          console.log('warning: ' + FS.syncFSRequests + ' FS.syncfs operations in flight at once, probably just doing extra work');
        }
  
        var mounts = FS.getMounts(FS.root.mount);
        var completed = 0;
  
        function doCallback(err) {
          assert(FS.syncFSRequests > 0);
          FS.syncFSRequests--;
          return callback(err);
        }
  
        function done(err) {
          if (err) {
            if (!done.errored) {
              done.errored = true;
              return doCallback(err);
            }
            return;
          }
          if (++completed >= mounts.length) {
            doCallback(null);
          }
        };
  
        // sync all mounts
        mounts.forEach(function (mount) {
          if (!mount.type.syncfs) {
            return done(null);
          }
          mount.type.syncfs(mount, populate, done);
        });
      },mount:function (type, opts, mountpoint) {
        var root = mountpoint === '/';
        var pseudo = !mountpoint;
        var node;
  
        if (root && FS.root) {
          throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
        } else if (!root && !pseudo) {
          var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
  
          mountpoint = lookup.path;  // use the absolute path
          node = lookup.node;
  
          if (FS.isMountpoint(node)) {
            throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
          }
  
          if (!FS.isDir(node.mode)) {
            throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
          }
        }
  
        var mount = {
          type: type,
          opts: opts,
          mountpoint: mountpoint,
          mounts: []
        };
  
        // create a root node for the fs
        var mountRoot = type.mount(mount);
        mountRoot.mount = mount;
        mount.root = mountRoot;
  
        if (root) {
          FS.root = mountRoot;
        } else if (node) {
          // set as a mountpoint
          node.mounted = mount;
  
          // add the new mount to the current mount's children
          if (node.mount) {
            node.mount.mounts.push(mount);
          }
        }
  
        return mountRoot;
      },unmount:function (mountpoint) {
        var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
  
        if (!FS.isMountpoint(lookup.node)) {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
  
        // destroy the nodes for this mount, and all its child mounts
        var node = lookup.node;
        var mount = node.mounted;
        var mounts = FS.getMounts(mount);
  
        Object.keys(FS.nameTable).forEach(function (hash) {
          var current = FS.nameTable[hash];
  
          while (current) {
            var next = current.name_next;
  
            if (mounts.indexOf(current.mount) !== -1) {
              FS.destroyNode(current);
            }
  
            current = next;
          }
        });
  
        // no longer a mountpoint
        node.mounted = null;
  
        // remove this mount from the child mounts
        var idx = node.mount.mounts.indexOf(mount);
        assert(idx !== -1);
        node.mount.mounts.splice(idx, 1);
      },lookup:function (parent, name) {
        return parent.node_ops.lookup(parent, name);
      },mknod:function (path, mode, dev) {
        var lookup = FS.lookupPath(path, { parent: true });
        var parent = lookup.node;
        var name = PATH.basename(path);
        if (!name || name === '.' || name === '..') {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
        var err = FS.mayCreate(parent, name);
        if (err) {
          throw new FS.ErrnoError(err);
        }
        if (!parent.node_ops.mknod) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        }
        return parent.node_ops.mknod(parent, name, mode, dev);
      },create:function (path, mode) {
        mode = mode !== undefined ? mode : 438 /* 0666 */;
        mode &= 4095;
        mode |= 32768;
        return FS.mknod(path, mode, 0);
      },mkdir:function (path, mode) {
        mode = mode !== undefined ? mode : 511 /* 0777 */;
        mode &= 511 | 512;
        mode |= 16384;
        return FS.mknod(path, mode, 0);
      },mkdirTree:function (path, mode) {
        var dirs = path.split('/');
        var d = '';
        for (var i = 0; i < dirs.length; ++i) {
          if (!dirs[i]) continue;
          d += '/' + dirs[i];
          try {
            FS.mkdir(d, mode);
          } catch(e) {
            if (e.errno != ERRNO_CODES.EEXIST) throw e;
          }
        }
      },mkdev:function (path, mode, dev) {
        if (typeof(dev) === 'undefined') {
          dev = mode;
          mode = 438 /* 0666 */;
        }
        mode |= 8192;
        return FS.mknod(path, mode, dev);
      },symlink:function (oldpath, newpath) {
        if (!PATH.resolve(oldpath)) {
          throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
        }
        var lookup = FS.lookupPath(newpath, { parent: true });
        var parent = lookup.node;
        if (!parent) {
          throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
        }
        var newname = PATH.basename(newpath);
        var err = FS.mayCreate(parent, newname);
        if (err) {
          throw new FS.ErrnoError(err);
        }
        if (!parent.node_ops.symlink) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        }
        return parent.node_ops.symlink(parent, newname, oldpath);
      },rename:function (old_path, new_path) {
        var old_dirname = PATH.dirname(old_path);
        var new_dirname = PATH.dirname(new_path);
        var old_name = PATH.basename(old_path);
        var new_name = PATH.basename(new_path);
        // parents must exist
        var lookup, old_dir, new_dir;
        try {
          lookup = FS.lookupPath(old_path, { parent: true });
          old_dir = lookup.node;
          lookup = FS.lookupPath(new_path, { parent: true });
          new_dir = lookup.node;
        } catch (e) {
          throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
        }
        if (!old_dir || !new_dir) throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
        // need to be part of the same mount
        if (old_dir.mount !== new_dir.mount) {
          throw new FS.ErrnoError(ERRNO_CODES.EXDEV);
        }
        // source must exist
        var old_node = FS.lookupNode(old_dir, old_name);
        // old path should not be an ancestor of the new path
        var relative = PATH.relative(old_path, new_dirname);
        if (relative.charAt(0) !== '.') {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
        // new path should not be an ancestor of the old path
        relative = PATH.relative(new_path, old_dirname);
        if (relative.charAt(0) !== '.') {
          throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
        }
        // see if the new path already exists
        var new_node;
        try {
          new_node = FS.lookupNode(new_dir, new_name);
        } catch (e) {
          // not fatal
        }
        // early out if nothing needs to change
        if (old_node === new_node) {
          return;
        }
        // we'll need to delete the old entry
        var isdir = FS.isDir(old_node.mode);
        var err = FS.mayDelete(old_dir, old_name, isdir);
        if (err) {
          throw new FS.ErrnoError(err);
        }
        // need delete permissions if we'll be overwriting.
        // need create permissions if new doesn't already exist.
        err = new_node ?
          FS.mayDelete(new_dir, new_name, isdir) :
          FS.mayCreate(new_dir, new_name);
        if (err) {
          throw new FS.ErrnoError(err);
        }
        if (!old_dir.node_ops.rename) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        }
        if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) {
          throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
        }
        // if we are going to change the parent, check write permissions
        if (new_dir !== old_dir) {
          err = FS.nodePermissions(old_dir, 'w');
          if (err) {
            throw new FS.ErrnoError(err);
          }
        }
        try {
          if (FS.trackingDelegate['willMovePath']) {
            FS.trackingDelegate['willMovePath'](old_path, new_path);
          }
        } catch(e) {
          console.log("FS.trackingDelegate['willMovePath']('"+old_path+"', '"+new_path+"') threw an exception: " + e.message);
        }
        // remove the node from the lookup hash
        FS.hashRemoveNode(old_node);
        // do the underlying fs rename
        try {
          old_dir.node_ops.rename(old_node, new_dir, new_name);
        } catch (e) {
          throw e;
        } finally {
          // add the node back to the hash (in case node_ops.rename
          // changed its name)
          FS.hashAddNode(old_node);
        }
        try {
          if (FS.trackingDelegate['onMovePath']) FS.trackingDelegate['onMovePath'](old_path, new_path);
        } catch(e) {
          console.log("FS.trackingDelegate['onMovePath']('"+old_path+"', '"+new_path+"') threw an exception: " + e.message);
        }
      },rmdir:function (path) {
        var lookup = FS.lookupPath(path, { parent: true });
        var parent = lookup.node;
        var name = PATH.basename(path);
        var node = FS.lookupNode(parent, name);
        var err = FS.mayDelete(parent, name, true);
        if (err) {
          throw new FS.ErrnoError(err);
        }
        if (!parent.node_ops.rmdir) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        }
        if (FS.isMountpoint(node)) {
          throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
        }
        try {
          if (FS.trackingDelegate['willDeletePath']) {
            FS.trackingDelegate['willDeletePath'](path);
          }
        } catch(e) {
          console.log("FS.trackingDelegate['willDeletePath']('"+path+"') threw an exception: " + e.message);
        }
        parent.node_ops.rmdir(parent, name);
        FS.destroyNode(node);
        try {
          if (FS.trackingDelegate['onDeletePath']) FS.trackingDelegate['onDeletePath'](path);
        } catch(e) {
          console.log("FS.trackingDelegate['onDeletePath']('"+path+"') threw an exception: " + e.message);
        }
      },readdir:function (path) {
        var lookup = FS.lookupPath(path, { follow: true });
        var node = lookup.node;
        if (!node.node_ops.readdir) {
          throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
        }
        return node.node_ops.readdir(node);
      },unlink:function (path) {
        var lookup = FS.lookupPath(path, { parent: true });
        var parent = lookup.node;
        var name = PATH.basename(path);
        var node = FS.lookupNode(parent, name);
        var err = FS.mayDelete(parent, name, false);
        if (err) {
          // According to POSIX, we should map EISDIR to EPERM, but
          // we instead do what Linux does (and we must, as we use
          // the musl linux libc).
          throw new FS.ErrnoError(err);
        }
        if (!parent.node_ops.unlink) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        }
        if (FS.isMountpoint(node)) {
          throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
        }
        try {
          if (FS.trackingDelegate['willDeletePath']) {
            FS.trackingDelegate['willDeletePath'](path);
          }
        } catch(e) {
          console.log("FS.trackingDelegate['willDeletePath']('"+path+"') threw an exception: " + e.message);
        }
        parent.node_ops.unlink(parent, name);
        FS.destroyNode(node);
        try {
          if (FS.trackingDelegate['onDeletePath']) FS.trackingDelegate['onDeletePath'](path);
        } catch(e) {
          console.log("FS.trackingDelegate['onDeletePath']('"+path+"') threw an exception: " + e.message);
        }
      },readlink:function (path) {
        var lookup = FS.lookupPath(path);
        var link = lookup.node;
        if (!link) {
          throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
        }
        if (!link.node_ops.readlink) {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
        return PATH.resolve(FS.getPath(link.parent), link.node_ops.readlink(link));
      },stat:function (path, dontFollow) {
        var lookup = FS.lookupPath(path, { follow: !dontFollow });
        var node = lookup.node;
        if (!node) {
          throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
        }
        if (!node.node_ops.getattr) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        }
        return node.node_ops.getattr(node);
      },lstat:function (path) {
        return FS.stat(path, true);
      },chmod:function (path, mode, dontFollow) {
        var node;
        if (typeof path === 'string') {
          var lookup = FS.lookupPath(path, { follow: !dontFollow });
          node = lookup.node;
        } else {
          node = path;
        }
        if (!node.node_ops.setattr) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        }
        node.node_ops.setattr(node, {
          mode: (mode & 4095) | (node.mode & ~4095),
          timestamp: Date.now()
        });
      },lchmod:function (path, mode) {
        FS.chmod(path, mode, true);
      },fchmod:function (fd, mode) {
        var stream = FS.getStream(fd);
        if (!stream) {
          throw new FS.ErrnoError(ERRNO_CODES.EBADF);
        }
        FS.chmod(stream.node, mode);
      },chown:function (path, uid, gid, dontFollow) {
        var node;
        if (typeof path === 'string') {
          var lookup = FS.lookupPath(path, { follow: !dontFollow });
          node = lookup.node;
        } else {
          node = path;
        }
        if (!node.node_ops.setattr) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        }
        node.node_ops.setattr(node, {
          timestamp: Date.now()
          // we ignore the uid / gid for now
        });
      },lchown:function (path, uid, gid) {
        FS.chown(path, uid, gid, true);
      },fchown:function (fd, uid, gid) {
        var stream = FS.getStream(fd);
        if (!stream) {
          throw new FS.ErrnoError(ERRNO_CODES.EBADF);
        }
        FS.chown(stream.node, uid, gid);
      },truncate:function (path, len) {
        if (len < 0) {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
        var node;
        if (typeof path === 'string') {
          var lookup = FS.lookupPath(path, { follow: true });
          node = lookup.node;
        } else {
          node = path;
        }
        if (!node.node_ops.setattr) {
          throw new FS.ErrnoError(ERRNO_CODES.EPERM);
        }
        if (FS.isDir(node.mode)) {
          throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
        }
        if (!FS.isFile(node.mode)) {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
        var err = FS.nodePermissions(node, 'w');
        if (err) {
          throw new FS.ErrnoError(err);
        }
        node.node_ops.setattr(node, {
          size: len,
          timestamp: Date.now()
        });
      },ftruncate:function (fd, len) {
        var stream = FS.getStream(fd);
        if (!stream) {
          throw new FS.ErrnoError(ERRNO_CODES.EBADF);
        }
        if ((stream.flags & 2097155) === 0) {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
        FS.truncate(stream.node, len);
      },utime:function (path, atime, mtime) {
        var lookup = FS.lookupPath(path, { follow: true });
        var node = lookup.node;
        node.node_ops.setattr(node, {
          timestamp: Math.max(atime, mtime)
        });
      },open:function (path, flags, mode, fd_start, fd_end) {
        if (path === "") {
          throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
        }
        flags = typeof flags === 'string' ? FS.modeStringToFlags(flags) : flags;
        mode = typeof mode === 'undefined' ? 438 /* 0666 */ : mode;
        if ((flags & 64)) {
          mode = (mode & 4095) | 32768;
        } else {
          mode = 0;
        }
        var node;
        if (typeof path === 'object') {
          node = path;
        } else {
          path = PATH.normalize(path);
          try {
            var lookup = FS.lookupPath(path, {
              follow: !(flags & 131072)
            });
            node = lookup.node;
          } catch (e) {
            // ignore
          }
        }
        // perhaps we need to create the node
        var created = false;
        if ((flags & 64)) {
          if (node) {
            // if O_CREAT and O_EXCL are set, error out if the node already exists
            if ((flags & 128)) {
              throw new FS.ErrnoError(ERRNO_CODES.EEXIST);
            }
          } else {
            // node doesn't exist, try to create it
            node = FS.mknod(path, mode, 0);
            created = true;
          }
        }
        if (!node) {
          throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
        }
        // can't truncate a device
        if (FS.isChrdev(node.mode)) {
          flags &= ~512;
        }
        // if asked only for a directory, then this must be one
        if ((flags & 65536) && !FS.isDir(node.mode)) {
          throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
        }
        // check permissions, if this is not a file we just created now (it is ok to
        // create and write to a file with read-only permissions; it is read-only
        // for later use)
        if (!created) {
          var err = FS.mayOpen(node, flags);
          if (err) {
            throw new FS.ErrnoError(err);
          }
        }
        // do truncation if necessary
        if ((flags & 512)) {
          FS.truncate(node, 0);
        }
        // we've already handled these, don't pass down to the underlying vfs
        flags &= ~(128 | 512);
  
        // register the stream with the filesystem
        var stream = FS.createStream({
          node: node,
          path: FS.getPath(node),  // we want the absolute path to the node
          flags: flags,
          seekable: true,
          position: 0,
          stream_ops: node.stream_ops,
          // used by the file family libc calls (fopen, fwrite, ferror, etc.)
          ungotten: [],
          error: false
        }, fd_start, fd_end);
        // call the new stream's open function
        if (stream.stream_ops.open) {
          stream.stream_ops.open(stream);
        }
        if (Module['logReadFiles'] && !(flags & 1)) {
          if (!FS.readFiles) FS.readFiles = {};
          if (!(path in FS.readFiles)) {
            FS.readFiles[path] = 1;
            Module['printErr']('read file: ' + path);
          }
        }
        try {
          if (FS.trackingDelegate['onOpenFile']) {
            var trackingFlags = 0;
            if ((flags & 2097155) !== 1) {
              trackingFlags |= FS.tracking.openFlags.READ;
            }
            if ((flags & 2097155) !== 0) {
              trackingFlags |= FS.tracking.openFlags.WRITE;
            }
            FS.trackingDelegate['onOpenFile'](path, trackingFlags);
          }
        } catch(e) {
          console.log("FS.trackingDelegate['onOpenFile']('"+path+"', flags) threw an exception: " + e.message);
        }
        return stream;
      },close:function (stream) {
        if (stream.getdents) stream.getdents = null; // free readdir state
        try {
          if (stream.stream_ops.close) {
            stream.stream_ops.close(stream);
          }
        } catch (e) {
          throw e;
        } finally {
          FS.closeStream(stream.fd);
        }
      },llseek:function (stream, offset, whence) {
        if (!stream.seekable || !stream.stream_ops.llseek) {
          throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
        }
        stream.position = stream.stream_ops.llseek(stream, offset, whence);
        stream.ungotten = [];
        return stream.position;
      },read:function (stream, buffer, offset, length, position) {
        if (length < 0 || position < 0) {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
        if ((stream.flags & 2097155) === 1) {
          throw new FS.ErrnoError(ERRNO_CODES.EBADF);
        }
        if (FS.isDir(stream.node.mode)) {
          throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
        }
        if (!stream.stream_ops.read) {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
        var seeking = true;
        if (typeof position === 'undefined') {
          position = stream.position;
          seeking = false;
        } else if (!stream.seekable) {
          throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
        }
        var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position);
        if (!seeking) stream.position += bytesRead;
        return bytesRead;
      },write:function (stream, buffer, offset, length, position, canOwn) {
        if (length < 0 || position < 0) {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
        if ((stream.flags & 2097155) === 0) {
          throw new FS.ErrnoError(ERRNO_CODES.EBADF);
        }
        if (FS.isDir(stream.node.mode)) {
          throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
        }
        if (!stream.stream_ops.write) {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
        if (stream.flags & 1024) {
          // seek to the end before writing in append mode
          FS.llseek(stream, 0, 2);
        }
        var seeking = true;
        if (typeof position === 'undefined') {
          position = stream.position;
          seeking = false;
        } else if (!stream.seekable) {
          throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
        }
        var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn);
        if (!seeking) stream.position += bytesWritten;
        try {
          if (stream.path && FS.trackingDelegate['onWriteToFile']) FS.trackingDelegate['onWriteToFile'](stream.path);
        } catch(e) {
          console.log("FS.trackingDelegate['onWriteToFile']('"+path+"') threw an exception: " + e.message);
        }
        return bytesWritten;
      },allocate:function (stream, offset, length) {
        if (offset < 0 || length <= 0) {
          throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
        }
        if ((stream.flags & 2097155) === 0) {
          throw new FS.ErrnoError(ERRNO_CODES.EBADF);
        }
        if (!FS.isFile(stream.node.mode) && !FS.isDir(node.mode)) {
          throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
        }
        if (!stream.stream_ops.allocate) {
          throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP);
        }
        stream.stream_ops.allocate(stream, offset, length);
      },mmap:function (stream, buffer, offset, length, position, prot, flags) {
        // TODO if PROT is PROT_WRITE, make sure we have write access
        if ((stream.flags & 2097155) === 1) {
          throw new FS.ErrnoError(ERRNO_CODES.EACCES);
        }
        if (!stream.stream_ops.mmap) {
          throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
        }
        return stream.stream_ops.mmap(stream, buffer, offset, length, position, prot, flags);
      },msync:function (stream, buffer, offset, length, mmapFlags) {
        if (!stream || !stream.stream_ops.msync) {
          return 0;
        }
        return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags);
      },munmap:function (stream) {
        return 0;
      },ioctl:function (stream, cmd, arg) {
        if (!stream.stream_ops.ioctl) {
          throw new FS.ErrnoError(ERRNO_CODES.ENOTTY);
        }
        return stream.stream_ops.ioctl(stream, cmd, arg);
      },readFile:function (path, opts) {
        opts = opts || {};
        opts.flags = opts.flags || 'r';
        opts.encoding = opts.encoding || 'binary';
        if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
          throw new Error('Invalid encoding type "' + opts.encoding + '"');
        }
        var ret;
        var stream = FS.open(path, opts.flags);
        var stat = FS.stat(path);
        var length = stat.size;
        var buf = new Uint8Array(length);
        FS.read(stream, buf, 0, length, 0);
        if (opts.encoding === 'utf8') {
          ret = UTF8ArrayToString(buf, 0);
        } else if (opts.encoding === 'binary') {
          ret = buf;
        }
        FS.close(stream);
        return ret;
      },writeFile:function (path, data, opts) {
        opts = opts || {};
        opts.flags = opts.flags || 'w';
        opts.encoding = opts.encoding || 'utf8';
        if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
          throw new Error('Invalid encoding type "' + opts.encoding + '"');
        }
        var stream = FS.open(path, opts.flags, opts.mode);
        if (opts.encoding === 'utf8') {
          var buf = new Uint8Array(lengthBytesUTF8(data)+1);
          var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length);
          FS.write(stream, buf, 0, actualNumBytes, 0, opts.canOwn);
        } else if (opts.encoding === 'binary') {
          FS.write(stream, data, 0, data.length, 0, opts.canOwn);
        }
        FS.close(stream);
      },cwd:function () {
        return FS.currentPath;
      },chdir:function (path) {
        var lookup = FS.lookupPath(path, { follow: true });
        if (lookup.node === null) {
          throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
        }
        if (!FS.isDir(lookup.node.mode)) {
          throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
        }
        var err = FS.nodePermissions(lookup.node, 'x');
        if (err) {
          throw new FS.ErrnoError(err);
        }
        FS.currentPath = lookup.path;
      },createDefaultDirectories:function () {
        FS.mkdir('/tmp');
        FS.mkdir('/home');
        FS.mkdir('/home/web_user');
      },createDefaultDevices:function () {
        // create /dev
        FS.mkdir('/dev');
        // setup /dev/null
        FS.registerDevice(FS.makedev(1, 3), {
          read: function() { return 0; },
          write: function(stream, buffer, offset, length, pos) { return length; }
        });
        FS.mkdev('/dev/null', FS.makedev(1, 3));
        // setup /dev/tty and /dev/tty1
        // stderr needs to print output using Module['printErr']
        // so we register a second tty just for it.
        TTY.register(FS.makedev(5, 0), TTY.default_tty_ops);
        TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops);
        FS.mkdev('/dev/tty', FS.makedev(5, 0));
        FS.mkdev('/dev/tty1', FS.makedev(6, 0));
        // setup /dev/[u]random
        var random_device;
        if (typeof crypto !== 'undefined') {
          // for modern web browsers
          var randomBuffer = new Uint8Array(1);
          random_device = function() { crypto.getRandomValues(randomBuffer); return randomBuffer[0]; };
        } else if (ENVIRONMENT_IS_NODE) {
          // for nodejs
          random_device = function() { return require('crypto').randomBytes(1)[0]; };
        } else {
          // default for ES5 platforms
          random_device = function() { return (Math.random()*256)|0; };
        }
        FS.createDevice('/dev', 'random', random_device);
        FS.createDevice('/dev', 'urandom', random_device);
        // we're not going to emulate the actual shm device,
        // just create the tmp dirs that reside in it commonly
        FS.mkdir('/dev/shm');
        FS.mkdir('/dev/shm/tmp');
      },createSpecialDirectories:function () {
        // create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the name of the stream for fd 6 (see test_unistd_ttyname)
        FS.mkdir('/proc');
        FS.mkdir('/proc/self');
        FS.mkdir('/proc/self/fd');
        FS.mount({
          mount: function() {
            var node = FS.createNode('/proc/self', 'fd', 16384 | 511 /* 0777 */, 73);
            node.node_ops = {
              lookup: function(parent, name) {
                var fd = +name;
                var stream = FS.getStream(fd);
                if (!stream) throw new FS.ErrnoError(ERRNO_CODES.EBADF);
                var ret = {
                  parent: null,
                  mount: { mountpoint: 'fake' },
                  node_ops: { readlink: function() { return stream.path } }
                };
                ret.parent = ret; // make it look like a simple root node
                return ret;
              }
            };
            return node;
          }
        }, {}, '/proc/self/fd');
      },createStandardStreams:function () {
        // TODO deprecate the old functionality of a single
        // input / output callback and that utilizes FS.createDevice
        // and instead require a unique set of stream ops
  
        // by default, we symlink the standard streams to the
        // default tty devices. however, if the standard streams
        // have been overwritten we create a unique device for
        // them instead.
        if (Module['stdin']) {
          FS.createDevice('/dev', 'stdin', Module['stdin']);
        } else {
          FS.symlink('/dev/tty', '/dev/stdin');
        }
        if (Module['stdout']) {
          FS.createDevice('/dev', 'stdout', null, Module['stdout']);
        } else {
          FS.symlink('/dev/tty', '/dev/stdout');
        }
        if (Module['stderr']) {
          FS.createDevice('/dev', 'stderr', null, Module['stderr']);
        } else {
          FS.symlink('/dev/tty1', '/dev/stderr');
        }
  
        // open default streams for the stdin, stdout and stderr devices
        var stdin = FS.open('/dev/stdin', 'r');
        assert(stdin.fd === 0, 'invalid handle for stdin (' + stdin.fd + ')');
  
        var stdout = FS.open('/dev/stdout', 'w');
        assert(stdout.fd === 1, 'invalid handle for stdout (' + stdout.fd + ')');
  
        var stderr = FS.open('/dev/stderr', 'w');
        assert(stderr.fd === 2, 'invalid handle for stderr (' + stderr.fd + ')');
      },ensureErrnoError:function () {
        if (FS.ErrnoError) return;
        FS.ErrnoError = function ErrnoError(errno, node) {
          //Module.printErr(stackTrace()); // useful for debugging
          this.node = node;
          this.setErrno = function(errno) {
            this.errno = errno;
            for (var key in ERRNO_CODES) {
              if (ERRNO_CODES[key] === errno) {
                this.code = key;
                break;
              }
            }
          };
          this.setErrno(errno);
          this.message = ERRNO_MESSAGES[errno];
          if (this.stack) this.stack = demangleAll(this.stack);
        };
        FS.ErrnoError.prototype = new Error();
        FS.ErrnoError.prototype.constructor = FS.ErrnoError;
        // Some errors may happen quite a bit, to avoid overhead we reuse them (and suffer a lack of stack info)
        [ERRNO_CODES.ENOENT].forEach(function(code) {
          FS.genericErrors[code] = new FS.ErrnoError(code);
          FS.genericErrors[code].stack = '<generic error, no stack>';
        });
      },staticInit:function () {
        FS.ensureErrnoError();
  
        FS.nameTable = new Array(4096);
  
        FS.mount(MEMFS, {}, '/');
  
        FS.createDefaultDirectories();
        FS.createDefaultDevices();
        FS.createSpecialDirectories();
  
        FS.filesystems = {
          'MEMFS': MEMFS,
          'IDBFS': IDBFS,
          'NODEFS': NODEFS,
          'WORKERFS': WORKERFS,
        };
      },init:function (input, output, error) {
        assert(!FS.init.initialized, 'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)');
        FS.init.initialized = true;
  
        FS.ensureErrnoError();
  
        // Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
        Module['stdin'] = input || Module['stdin'];
        Module['stdout'] = output || Module['stdout'];
        Module['stderr'] = error || Module['stderr'];
  
        FS.createStandardStreams();
      },quit:function () {
        FS.init.initialized = false;
        // force-flush all streams, so we get musl std streams printed out
        var fflush = Module['_fflush'];
        if (fflush) fflush(0);
        // close all of our streams
        for (var i = 0; i < FS.streams.length; i++) {
          var stream = FS.streams[i];
          if (!stream) {
            continue;
          }
          FS.close(stream);
        }
      },getMode:function (canRead, canWrite) {
        var mode = 0;
        if (canRead) mode |= 292 | 73;
        if (canWrite) mode |= 146;
        return mode;
      },joinPath:function (parts, forceRelative) {
        var path = PATH.join.apply(null, parts);
        if (forceRelative && path[0] == '/') path = path.substr(1);
        return path;
      },absolutePath:function (relative, base) {
        return PATH.resolve(base, relative);
      },standardizePath:function (path) {
        return PATH.normalize(path);
      },findObject:function (path, dontResolveLastLink) {
        var ret = FS.analyzePath(path, dontResolveLastLink);
        if (ret.exists) {
          return ret.object;
        } else {
          ___setErrNo(ret.error);
          return null;
        }
      },analyzePath:function (path, dontResolveLastLink) {
        // operate from within the context of the symlink's target
        try {
          var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
          path = lookup.path;
        } catch (e) {
        }
        var ret = {
          isRoot: false, exists: false, error: 0, name: null, path: null, object: null,
          parentExists: false, parentPath: null, parentObject: null
        };
        try {
          var lookup = FS.lookupPath(path, { parent: true });
          ret.parentExists = true;
          ret.parentPath = lookup.path;
          ret.parentObject = lookup.node;
          ret.name = PATH.basename(path);
          lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
          ret.exists = true;
          ret.path = lookup.path;
          ret.object = lookup.node;
          ret.name = lookup.node.name;
          ret.isRoot = lookup.path === '/';
        } catch (e) {
          ret.error = e.errno;
        };
        return ret;
      },createFolder:function (parent, name, canRead, canWrite) {
        var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
        var mode = FS.getMode(canRead, canWrite);
        return FS.mkdir(path, mode);
      },createPath:function (parent, path, canRead, canWrite) {
        parent = typeof parent === 'string' ? parent : FS.getPath(parent);
        var parts = path.split('/').reverse();
        while (parts.length) {
          var part = parts.pop();
          if (!part) continue;
          var current = PATH.join2(parent, part);
          try {
            FS.mkdir(current);
          } catch (e) {
            // ignore EEXIST
          }
          parent = current;
        }
        return current;
      },createFile:function (parent, name, properties, canRead, canWrite) {
        var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
        var mode = FS.getMode(canRead, canWrite);
        return FS.create(path, mode);
      },createDataFile:function (parent, name, data, canRead, canWrite, canOwn) {
        var path = name ? PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name) : parent;
        var mode = FS.getMode(canRead, canWrite);
        var node = FS.create(path, mode);
        if (data) {
          if (typeof data === 'string') {
            var arr = new Array(data.length);
            for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i);
            data = arr;
          }
          // make sure we can write to the file
          FS.chmod(node, mode | 146);
          var stream = FS.open(node, 'w');
          FS.write(stream, data, 0, data.length, 0, canOwn);
          FS.close(stream);
          FS.chmod(node, mode);
        }
        return node;
      },createDevice:function (parent, name, input, output) {
        var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
        var mode = FS.getMode(!!input, !!output);
        if (!FS.createDevice.major) FS.createDevice.major = 64;
        var dev = FS.makedev(FS.createDevice.major++, 0);
        // Create a fake device that a set of stream ops to emulate
        // the old behavior.
        FS.registerDevice(dev, {
          open: function(stream) {
            stream.seekable = false;
          },
          close: function(stream) {
            // flush any pending line data
            if (output && output.buffer && output.buffer.length) {
              output(10);
            }
          },
          read: function(stream, buffer, offset, length, pos /* ignored */) {
            var bytesRead = 0;
            for (var i = 0; i < length; i++) {
              var result;
              try {
                result = input();
              } catch (e) {
                throw new FS.ErrnoError(ERRNO_CODES.EIO);
              }
              if (result === undefined && bytesRead === 0) {
                throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
              }
              if (result === null || result === undefined) break;
              bytesRead++;
              buffer[offset+i] = result;
            }
            if (bytesRead) {
              stream.node.timestamp = Date.now();
            }
            return bytesRead;
          },
          write: function(stream, buffer, offset, length, pos) {
            for (var i = 0; i < length; i++) {
              try {
                output(buffer[offset+i]);
              } catch (e) {
                throw new FS.ErrnoError(ERRNO_CODES.EIO);
              }
            }
            if (length) {
              stream.node.timestamp = Date.now();
            }
            return i;
          }
        });
        return FS.mkdev(path, mode, dev);
      },createLink:function (parent, name, target, canRead, canWrite) {
        var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
        return FS.symlink(target, path);
      },forceLoadFile:function (obj) {
        if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
        var success = true;
        if (typeof XMLHttpRequest !== 'undefined') {
          throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.");
        } else if (Module['read']) {
          // Command-line.
          try {
            // WARNING: Can't read binary files in V8's d8 or tracemonkey's js, as
            //          read() will try to parse UTF8.
            obj.contents = intArrayFromString(Module['read'](obj.url), true);
            obj.usedBytes = obj.contents.length;
          } catch (e) {
            success = false;
          }
        } else {
          throw new Error('Cannot load without read() or XMLHttpRequest.');
        }
        if (!success) ___setErrNo(ERRNO_CODES.EIO);
        return success;
      },createLazyFile:function (parent, name, url, canRead, canWrite) {
        // Lazy chunked Uint8Array (implements get and length from Uint8Array). Actual getting is abstracted away for eventual reuse.
        function LazyUint8Array() {
          this.lengthKnown = false;
          this.chunks = []; // Loaded chunks. Index is the chunk number
        }
        LazyUint8Array.prototype.get = function LazyUint8Array_get(idx) {
          if (idx > this.length-1 || idx < 0) {
            return undefined;
          }
          var chunkOffset = idx % this.chunkSize;
          var chunkNum = (idx / this.chunkSize)|0;
          return this.getter(chunkNum)[chunkOffset];
        }
        LazyUint8Array.prototype.setDataGetter = function LazyUint8Array_setDataGetter(getter) {
          this.getter = getter;
        }
        LazyUint8Array.prototype.cacheLength = function LazyUint8Array_cacheLength() {
          // Find length
          var xhr = new XMLHttpRequest();
          xhr.open('HEAD', url, false);
          xhr.send(null);
          if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
          var datalength = Number(xhr.getResponseHeader("Content-length"));
          var header;
          var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes";
          var usesGzip = (header = xhr.getResponseHeader("Content-Encoding")) && header === "gzip";
  
          var chunkSize = 1024*1024; // Chunk size in bytes
  
          if (!hasByteServing) chunkSize = datalength;
  
          // Function to get a range from the remote URL.
          var doXHR = (function(from, to) {
            if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!");
            if (to > datalength-1) throw new Error("only " + datalength + " bytes available! programmer error!");
  
            // TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
            var xhr = new XMLHttpRequest();
            xhr.open('GET', url, false);
            if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
  
            // Some hints to the browser that we want binary data.
            if (typeof Uint8Array != 'undefined') xhr.responseType = 'arraybuffer';
            if (xhr.overrideMimeType) {
              xhr.overrideMimeType('text/plain; charset=x-user-defined');
            }
  
            xhr.send(null);
            if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
            if (xhr.response !== undefined) {
              return new Uint8Array(xhr.response || []);
            } else {
              return intArrayFromString(xhr.responseText || '', true);
            }
          });
          var lazyArray = this;
          lazyArray.setDataGetter(function(chunkNum) {
            var start = chunkNum * chunkSize;
            var end = (chunkNum+1) * chunkSize - 1; // including this byte
            end = Math.min(end, datalength-1); // if datalength-1 is selected, this is the last block
            if (typeof(lazyArray.chunks[chunkNum]) === "undefined") {
              lazyArray.chunks[chunkNum] = doXHR(start, end);
            }
            if (typeof(lazyArray.chunks[chunkNum]) === "undefined") throw new Error("doXHR failed!");
            return lazyArray.chunks[chunkNum];
          });
  
          if (usesGzip || !datalength) {
            // if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length
            chunkSize = datalength = 1; // this will force getter(0)/doXHR do download the whole file
            datalength = this.getter(0).length;
            chunkSize = datalength;
            console.log("LazyFiles on gzip forces download of the whole file when length is accessed");
          }
  
          this._length = datalength;
          this._chunkSize = chunkSize;
          this.lengthKnown = true;
        }
        if (typeof XMLHttpRequest !== 'undefined') {
          if (!ENVIRONMENT_IS_WORKER) throw 'Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc';
          var lazyArray = new LazyUint8Array();
          Object.defineProperties(lazyArray, {
            length: {
              get: function() {
                if(!this.lengthKnown) {
                  this.cacheLength();
                }
                return this._length;
              }
            },
            chunkSize: {
              get: function() {
                if(!this.lengthKnown) {
                  this.cacheLength();
                }
                return this._chunkSize;
              }
            }
          });
  
          var properties = { isDevice: false, contents: lazyArray };
        } else {
          var properties = { isDevice: false, url: url };
        }
  
        var node = FS.createFile(parent, name, properties, canRead, canWrite);
        // This is a total hack, but I want to get this lazy file code out of the
        // core of MEMFS. If we want to keep this lazy file concept I feel it should
        // be its own thin LAZYFS proxying calls to MEMFS.
        if (properties.contents) {
          node.contents = properties.contents;
        } else if (properties.url) {
          node.contents = null;
          node.url = properties.url;
        }
        // Add a function that defers querying the file size until it is asked the first time.
        Object.defineProperties(node, {
          usedBytes: {
            get: function() { return this.contents.length; }
          }
        });
        // override each stream op with one that tries to force load the lazy file first
        var stream_ops = {};
        var keys = Object.keys(node.stream_ops);
        keys.forEach(function(key) {
          var fn = node.stream_ops[key];
          stream_ops[key] = function forceLoadLazyFile() {
            if (!FS.forceLoadFile(node)) {
              throw new FS.ErrnoError(ERRNO_CODES.EIO);
            }
            return fn.apply(null, arguments);
          };
        });
        // use a custom read function
        stream_ops.read = function stream_ops_read(stream, buffer, offset, length, position) {
          if (!FS.forceLoadFile(node)) {
            throw new FS.ErrnoError(ERRNO_CODES.EIO);
          }
          var contents = stream.node.contents;
          if (position >= contents.length)
            return 0;
          var size = Math.min(contents.length - position, length);
          assert(size >= 0);
          if (contents.slice) { // normal array
            for (var i = 0; i < size; i++) {
              buffer[offset + i] = contents[position + i];
            }
          } else {
            for (var i = 0; i < size; i++) { // LazyUint8Array from sync binary XHR
              buffer[offset + i] = contents.get(position + i);
            }
          }
          return size;
        };
        node.stream_ops = stream_ops;
        return node;
      },createPreloadedFile:function (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) {
        Browser.init(); // XXX perhaps this method should move onto Browser?
        // TODO we should allow people to just pass in a complete filename instead
        // of parent and name being that we just join them anyways
        var fullname = name ? PATH.resolve(PATH.join2(parent, name)) : parent;
        var dep = getUniqueRunDependency('cp ' + fullname); // might have several active requests for the same fullname
        function processData(byteArray) {
          function finish(byteArray) {
            if (preFinish) preFinish();
            if (!dontCreateFile) {
              FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
            }
            if (onload) onload();
            removeRunDependency(dep);
          }
          var handled = false;
          Module['preloadPlugins'].forEach(function(plugin) {
            if (handled) return;
            if (plugin['canHandle'](fullname)) {
              plugin['handle'](byteArray, fullname, finish, function() {
                if (onerror) onerror();
                removeRunDependency(dep);
              });
              handled = true;
            }
          });
          if (!handled) finish(byteArray);
        }
        addRunDependency(dep);
        if (typeof url == 'string') {
          Browser.asyncLoad(url, function(byteArray) {
            processData(byteArray);
          }, onerror);
        } else {
          processData(url);
        }
      },indexedDB:function () {
        return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
      },DB_NAME:function () {
        return 'EM_FS_' + window.location.pathname;
      },DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:function (paths, onload, onerror) {
        onload = onload || function(){};
        onerror = onerror || function(){};
        var indexedDB = FS.indexedDB();
        try {
          var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
        } catch (e) {
          return onerror(e);
        }
        openRequest.onupgradeneeded = function openRequest_onupgradeneeded() {
          console.log('creating db');
          var db = openRequest.result;
          db.createObjectStore(FS.DB_STORE_NAME);
        };
        openRequest.onsuccess = function openRequest_onsuccess() {
          var db = openRequest.result;
          var transaction = db.transaction([FS.DB_STORE_NAME], 'readwrite');
          var files = transaction.objectStore(FS.DB_STORE_NAME);
          var ok = 0, fail = 0, total = paths.length;
          function finish() {
            if (fail == 0) onload(); else onerror();
          }
          paths.forEach(function(path) {
            var putRequest = files.put(FS.analyzePath(path).object.contents, path);
            putRequest.onsuccess = function putRequest_onsuccess() { ok++; if (ok + fail == total) finish() };
            putRequest.onerror = function putRequest_onerror() { fail++; if (ok + fail == total) finish() };
          });
          transaction.onerror = onerror;
        };
        openRequest.onerror = onerror;
      },loadFilesFromDB:function (paths, onload, onerror) {
        onload = onload || function(){};
        onerror = onerror || function(){};
        var indexedDB = FS.indexedDB();
        try {
          var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
        } catch (e) {
          return onerror(e);
        }
        openRequest.onupgradeneeded = onerror; // no database to load from
        openRequest.onsuccess = function openRequest_onsuccess() {
          var db = openRequest.result;
          try {
            var transaction = db.transaction([FS.DB_STORE_NAME], 'readonly');
          } catch(e) {
            onerror(e);
            return;
          }
          var files = transaction.objectStore(FS.DB_STORE_NAME);
          var ok = 0, fail = 0, total = paths.length;
          function finish() {
            if (fail == 0) onload(); else onerror();
          }
          paths.forEach(function(path) {
            var getRequest = files.get(path);
            getRequest.onsuccess = function getRequest_onsuccess() {
              if (FS.analyzePath(path).exists) {
                FS.unlink(path);
              }
              FS.createDataFile(PATH.dirname(path), PATH.basename(path), getRequest.result, true, true, true);
              ok++;
              if (ok + fail == total) finish();
            };
            getRequest.onerror = function getRequest_onerror() { fail++; if (ok + fail == total) finish() };
          });
          transaction.onerror = onerror;
        };
        openRequest.onerror = onerror;
      }};var SYSCALLS={DEFAULT_POLLMASK:5,mappings:{},umask:511,calculateAt:function (dirfd, path) {
        if (path[0] !== '/') {
          // relative path
          var dir;
          if (dirfd === -100) {
            dir = FS.cwd();
          } else {
            var dirstream = FS.getStream(dirfd);
            if (!dirstream) throw new FS.ErrnoError(ERRNO_CODES.EBADF);
            dir = dirstream.path;
          }
          path = PATH.join2(dir, path);
        }
        return path;
      },doStat:function (func, path, buf) {
        try {
          var stat = func(path);
        } catch (e) {
          if (e && e.node && PATH.normalize(path) !== PATH.normalize(FS.getPath(e.node))) {
            // an error occurred while trying to look up the path; we should just report ENOTDIR
            return -ERRNO_CODES.ENOTDIR;
          }
          throw e;
        }
        HEAP32[((buf)>>2)]=stat.dev;
        HEAP32[(((buf)+(4))>>2)]=0;
        HEAP32[(((buf)+(8))>>2)]=stat.ino;
        HEAP32[(((buf)+(12))>>2)]=stat.mode;
        HEAP32[(((buf)+(16))>>2)]=stat.nlink;
        HEAP32[(((buf)+(20))>>2)]=stat.uid;
        HEAP32[(((buf)+(24))>>2)]=stat.gid;
        HEAP32[(((buf)+(28))>>2)]=stat.rdev;
        HEAP32[(((buf)+(32))>>2)]=0;
        HEAP32[(((buf)+(36))>>2)]=stat.size;
        HEAP32[(((buf)+(40))>>2)]=4096;
        HEAP32[(((buf)+(44))>>2)]=stat.blocks;
        HEAP32[(((buf)+(48))>>2)]=(stat.atime.getTime() / 1000)|0;
        HEAP32[(((buf)+(52))>>2)]=0;
        HEAP32[(((buf)+(56))>>2)]=(stat.mtime.getTime() / 1000)|0;
        HEAP32[(((buf)+(60))>>2)]=0;
        HEAP32[(((buf)+(64))>>2)]=(stat.ctime.getTime() / 1000)|0;
        HEAP32[(((buf)+(68))>>2)]=0;
        HEAP32[(((buf)+(72))>>2)]=stat.ino;
        return 0;
      },doMsync:function (addr, stream, len, flags) {
        var buffer = new Uint8Array(HEAPU8.subarray(addr, addr + len));
        FS.msync(stream, buffer, 0, len, flags);
      },doMkdir:function (path, mode) {
        // remove a trailing slash, if one - /a/b/ has basename of '', but
        // we want to create b in the context of this function
        path = PATH.normalize(path);
        if (path[path.length-1] === '/') path = path.substr(0, path.length-1);
        FS.mkdir(path, mode, 0);
        return 0;
      },doMknod:function (path, mode, dev) {
        // we don't want this in the JS API as it uses mknod to create all nodes.
        switch (mode & 61440) {
          case 32768:
          case 8192:
          case 24576:
          case 4096:
          case 49152:
            break;
          default: return -ERRNO_CODES.EINVAL;
        }
        FS.mknod(path, mode, dev);
        return 0;
      },doReadlink:function (path, buf, bufsize) {
        if (bufsize <= 0) return -ERRNO_CODES.EINVAL;
        var ret = FS.readlink(path);
  
        var len = Math.min(bufsize, lengthBytesUTF8(ret));
        var endChar = HEAP8[buf+len];
        stringToUTF8(ret, buf, bufsize+1);
        // readlink is one of the rare functions that write out a C string, but does never append a null to the output buffer(!)
        // stringToUTF8() always appends a null byte, so restore the character under the null byte after the write.
        HEAP8[buf+len] = endChar;
  
        return len;
      },doAccess:function (path, amode) {
        if (amode & ~7) {
          // need a valid mode
          return -ERRNO_CODES.EINVAL;
        }
        var node;
        var lookup = FS.lookupPath(path, { follow: true });
        node = lookup.node;
        var perms = '';
        if (amode & 4) perms += 'r';
        if (amode & 2) perms += 'w';
        if (amode & 1) perms += 'x';
        if (perms /* otherwise, they've just passed F_OK */ && FS.nodePermissions(node, perms)) {
          return -ERRNO_CODES.EACCES;
        }
        return 0;
      },doDup:function (path, flags, suggestFD) {
        var suggest = FS.getStream(suggestFD);
        if (suggest) FS.close(suggest);
        return FS.open(path, flags, 0, suggestFD, suggestFD).fd;
      },doReadv:function (stream, iov, iovcnt, offset) {
        var ret = 0;
        for (var i = 0; i < iovcnt; i++) {
          var ptr = HEAP32[(((iov)+(i*8))>>2)];
          var len = HEAP32[(((iov)+(i*8 + 4))>>2)];
          var curr = FS.read(stream, HEAP8,ptr, len, offset);
          if (curr < 0) return -1;
          ret += curr;
          if (curr < len) break; // nothing more to read
        }
        return ret;
      },doWritev:function (stream, iov, iovcnt, offset) {
        var ret = 0;
        for (var i = 0; i < iovcnt; i++) {
          var ptr = HEAP32[(((iov)+(i*8))>>2)];
          var len = HEAP32[(((iov)+(i*8 + 4))>>2)];
          var curr = FS.write(stream, HEAP8,ptr, len, offset);
          if (curr < 0) return -1;
          ret += curr;
        }
        return ret;
      },varargs:0,get:function (varargs) {
        SYSCALLS.varargs += 4;
        var ret = HEAP32[(((SYSCALLS.varargs)-(4))>>2)];
        return ret;
      },getStr:function () {
        var ret = Pointer_stringify(SYSCALLS.get());
        return ret;
      },getStreamFromFD:function () {
        var stream = FS.getStream(SYSCALLS.get());
        if (!stream) throw new FS.ErrnoError(ERRNO_CODES.EBADF);
        return stream;
      },getSocketFromFD:function () {
        var socket = SOCKFS.getSocket(SYSCALLS.get());
        if (!socket) throw new FS.ErrnoError(ERRNO_CODES.EBADF);
        return socket;
      },getSocketAddress:function (allowNull) {
        var addrp = SYSCALLS.get(), addrlen = SYSCALLS.get();
        if (allowNull && addrp === 0) return null;
        var info = __read_sockaddr(addrp, addrlen);
        if (info.errno) throw new FS.ErrnoError(info.errno);
        info.addr = DNS.lookup_addr(info.addr) || info.addr;
        return info;
      },get64:function () {
        var low = SYSCALLS.get(), high = SYSCALLS.get();
        if (low >= 0) assert(high === 0);
        else assert(high === -1);
        return low;
      },getZero:function () {
        assert(SYSCALLS.get() === 0);
      }};function ___syscall195(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // SYS_stat64
      var path = SYSCALLS.getStr(), buf = SYSCALLS.get();
      return SYSCALLS.doStat(FS.stat, path, buf);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  function ___syscall197(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // SYS_fstat64
      var stream = SYSCALLS.getStreamFromFD(), buf = SYSCALLS.get();
      return SYSCALLS.doStat(FS.stat, stream.path, buf);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  function ___syscall196(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // SYS_lstat64
      var path = SYSCALLS.getStr(), buf = SYSCALLS.get();
      return SYSCALLS.doStat(FS.lstat, path, buf);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  function ___syscall3(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // read
      var stream = SYSCALLS.getStreamFromFD(), buf = SYSCALLS.get(), count = SYSCALLS.get();
      return FS.read(stream, HEAP8,buf, count);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  
  function _realloc() { throw 'bad' }
  Module["_realloc"] = _realloc; 
  Module["_saveSetjmp"] = _saveSetjmp;

  function _llvm_stackrestore(p) {
      var self = _llvm_stacksave;
      var ret = self.LLVM_SAVEDSTACKS[p];
      self.LLVM_SAVEDSTACKS.splice(p, 1);
      Runtime.stackRestore(ret);
    }

  
  function _usleep(useconds) {
      // int usleep(useconds_t useconds);
      // http://pubs.opengroup.org/onlinepubs/000095399/functions/usleep.html
      // We're single-threaded, so use a busy loop. Super-ugly.
      var msec = useconds / 1000;
      if ((ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) && self['performance'] && self['performance']['now']) {
        var start = self['performance']['now']();
        while (self['performance']['now']() - start < msec) {
          // Do nothing.
        }
      } else {
        var start = Date.now();
        while (Date.now() - start < msec) {
          // Do nothing.
        }
      }
      return 0;
    }function _nanosleep(rqtp, rmtp) {
      // int nanosleep(const struct timespec  *rqtp, struct timespec *rmtp);
      var seconds = HEAP32[((rqtp)>>2)];
      var nanoseconds = HEAP32[(((rqtp)+(4))>>2)];
      if (rmtp !== 0) {
        HEAP32[((rmtp)>>2)]=0;
        HEAP32[(((rmtp)+(4))>>2)]=0;
      }
      return _usleep((seconds * 1e6) + (nanoseconds / 1000));
    }

  var _llvm_pow_f32=Math_pow;

  
  
  var _tzname=STATICTOP; STATICTOP += 16;;
  
  var _daylight=STATICTOP; STATICTOP += 16;;
  
  var _timezone=STATICTOP; STATICTOP += 16;;function _tzset() {
      // TODO: Use (malleable) environment variables instead of system settings.
      if (_tzset.called) return;
      _tzset.called = true;
  
      HEAP32[((_timezone)>>2)]=-(new Date()).getTimezoneOffset() * 60;
  
      var winter = new Date(2000, 0, 1);
      var summer = new Date(2000, 6, 1);
      HEAP32[((_daylight)>>2)]=Number(winter.getTimezoneOffset() != summer.getTimezoneOffset());
  
      function extractZone(date) {
        var match = date.toTimeString().match(/\(([A-Za-z ]+)\)$/);
        return match ? match[1] : "GMT";
      };
      var winterName = extractZone(winter);
      var summerName = extractZone(summer);
      var winterNamePtr = allocate(intArrayFromString(winterName), 'i8', ALLOC_NORMAL);
      var summerNamePtr = allocate(intArrayFromString(summerName), 'i8', ALLOC_NORMAL);
      if (summer.getTimezoneOffset() < winter.getTimezoneOffset()) {
        // Northern hemisphere
        HEAP32[((_tzname)>>2)]=winterNamePtr;
        HEAP32[(((_tzname)+(4))>>2)]=summerNamePtr;
      } else {
        HEAP32[((_tzname)>>2)]=summerNamePtr;
        HEAP32[(((_tzname)+(4))>>2)]=winterNamePtr;
      }
    }function _mktime(tmPtr) {
      _tzset();
      var date = new Date(HEAP32[(((tmPtr)+(20))>>2)] + 1900,
                          HEAP32[(((tmPtr)+(16))>>2)],
                          HEAP32[(((tmPtr)+(12))>>2)],
                          HEAP32[(((tmPtr)+(8))>>2)],
                          HEAP32[(((tmPtr)+(4))>>2)],
                          HEAP32[((tmPtr)>>2)],
                          0);
  
      // There's an ambiguous hour when the time goes back; the tm_isdst field is
      // used to disambiguate it.  Date() basically guesses, so we fix it up if it
      // guessed wrong, or fill in tm_isdst with the guess if it's -1.
      var dst = HEAP32[(((tmPtr)+(32))>>2)];
      var guessedOffset = date.getTimezoneOffset();
      var start = new Date(date.getFullYear(), 0, 1);
      var summerOffset = new Date(2000, 6, 1).getTimezoneOffset();
      var winterOffset = start.getTimezoneOffset();
      var dstOffset = Math.min(winterOffset, summerOffset); // DST is in December in South
      if (dst < 0) {
        HEAP32[(((tmPtr)+(32))>>2)]=Number(dstOffset == guessedOffset);
      } else if ((dst > 0) != (dstOffset == guessedOffset)) {
        var nonDstOffset = Math.max(winterOffset, summerOffset);
        var trueOffset = dst > 0 ? dstOffset : nonDstOffset;
        // Don't try setMinutes(date.getMinutes() + ...) -- it's messed up.
        date.setTime(date.getTime() + (trueOffset - guessedOffset)*60000);
      }
  
      HEAP32[(((tmPtr)+(24))>>2)]=date.getDay();
      var yday = ((date.getTime() - start.getTime()) / (1000 * 60 * 60 * 24))|0;
      HEAP32[(((tmPtr)+(28))>>2)]=yday;
  
      return (date.getTime() / 1000)|0;
    }

  function ___syscall6(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // close
      var stream = SYSCALLS.getStreamFromFD();
      FS.close(stream);
      return 0;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  function ___syscall54(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // ioctl
      var stream = SYSCALLS.getStreamFromFD(), op = SYSCALLS.get();
      switch (op) {
        case 21505: {
          if (!stream.tty) return -ERRNO_CODES.ENOTTY;
          return 0;
        }
        case 21506: {
          if (!stream.tty) return -ERRNO_CODES.ENOTTY;
          return 0; // no-op, not actually adjusting terminal settings
        }
        case 21519: {
          if (!stream.tty) return -ERRNO_CODES.ENOTTY;
          var argp = SYSCALLS.get();
          HEAP32[((argp)>>2)]=0;
          return 0;
        }
        case 21520: {
          if (!stream.tty) return -ERRNO_CODES.ENOTTY;
          return -ERRNO_CODES.EINVAL; // not supported
        }
        case 21531: {
          var argp = SYSCALLS.get();
          return FS.ioctl(stream, op, argp);
        }
        case 21523: {
          // TODO: in theory we should write to the winsize struct that gets
          // passed in, but for now musl doesn't read anything on it
          if (!stream.tty) return -ERRNO_CODES.ENOTTY;
          return 0;
        }
        default: abort('bad ioctl syscall ' + op);
      }
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  
  var ___tm_current=STATICTOP; STATICTOP += 48;;
  
  
  var ___tm_timezone=allocate(intArrayFromString("GMT"), "i8", ALLOC_STATIC);function _localtime_r(time, tmPtr) {
      _tzset();
      var date = new Date(HEAP32[((time)>>2)]*1000);
      HEAP32[((tmPtr)>>2)]=date.getSeconds();
      HEAP32[(((tmPtr)+(4))>>2)]=date.getMinutes();
      HEAP32[(((tmPtr)+(8))>>2)]=date.getHours();
      HEAP32[(((tmPtr)+(12))>>2)]=date.getDate();
      HEAP32[(((tmPtr)+(16))>>2)]=date.getMonth();
      HEAP32[(((tmPtr)+(20))>>2)]=date.getFullYear()-1900;
      HEAP32[(((tmPtr)+(24))>>2)]=date.getDay();
  
      var start = new Date(date.getFullYear(), 0, 1);
      var yday = ((date.getTime() - start.getTime()) / (1000 * 60 * 60 * 24))|0;
      HEAP32[(((tmPtr)+(28))>>2)]=yday;
      HEAP32[(((tmPtr)+(36))>>2)]=-(date.getTimezoneOffset() * 60);
  
      // DST is in December in South
      var summerOffset = new Date(2000, 6, 1).getTimezoneOffset();
      var winterOffset = start.getTimezoneOffset();
      var dst = (date.getTimezoneOffset() == Math.min(winterOffset, summerOffset))|0;
      HEAP32[(((tmPtr)+(32))>>2)]=dst;
  
      var zonePtr = HEAP32[(((_tzname)+(dst ? Runtime.QUANTUM_SIZE : 0))>>2)];
      HEAP32[(((tmPtr)+(40))>>2)]=zonePtr;
  
      return tmPtr;
    }function _localtime(time) {
      return _localtime_r(time, ___tm_current);
    }

  function ___syscall77(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // getrusage
      var who = SYSCALLS.get(), usage = SYSCALLS.get();
      _memset(usage, 0, 136);
      HEAP32[((usage)>>2)]=1; // fake some values
      HEAP32[(((usage)+(4))>>2)]=2;
      HEAP32[(((usage)+(8))>>2)]=3;
      HEAP32[(((usage)+(12))>>2)]=4;
      return 0;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

   
  Module["_bitshift64Ashr"] = _bitshift64Ashr;

   
  Module["_bitshift64Lshr"] = _bitshift64Lshr;

  function ___syscall38(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // rename
      var old_path = SYSCALLS.getStr(), new_path = SYSCALLS.getStr();
      FS.rename(old_path, new_path);
      return 0;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  
  function _llvm_exp2_f32(x) {
      return Math.pow(2, x);
    }function _llvm_exp2_f64() {
  return _llvm_exp2_f32.apply(null, arguments)
  }

  function ___syscall33(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // access
      var path = SYSCALLS.getStr(), amode = SYSCALLS.get();
      return SYSCALLS.doAccess(path, amode);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  
  
   
  Module["_testSetjmp"] = _testSetjmp;function _longjmp(env, value) {
      Module['setThrew'](env, value || 1);
      throw 'longjmp';
    }function _emscripten_longjmp(env, value) {
      _longjmp(env, value);
    }

  
  
  
  
  var _environ=STATICTOP; STATICTOP += 16;;var ___environ=_environ;function ___buildEnvironment(env) {
      // WARNING: Arbitrary limit!
      var MAX_ENV_VALUES = 64;
      var TOTAL_ENV_SIZE = 1024;
  
      // Statically allocate memory for the environment.
      var poolPtr;
      var envPtr;
      if (!___buildEnvironment.called) {
        ___buildEnvironment.called = true;
        // Set default values. Use string keys for Closure Compiler compatibility.
        ENV['USER'] = ENV['LOGNAME'] = 'web_user';
        ENV['PATH'] = '/';
        ENV['PWD'] = '/';
        ENV['HOME'] = '/home/web_user';
        ENV['LANG'] = 'C';
        ENV['_'] = Module['thisProgram'];
        // Allocate memory.
        poolPtr = allocate(TOTAL_ENV_SIZE, 'i8', ALLOC_STATIC);
        envPtr = allocate(MAX_ENV_VALUES * 4,
                          'i8*', ALLOC_STATIC);
        HEAP32[((envPtr)>>2)]=poolPtr;
        HEAP32[((_environ)>>2)]=envPtr;
      } else {
        envPtr = HEAP32[((_environ)>>2)];
        poolPtr = HEAP32[((envPtr)>>2)];
      }
  
      // Collect key=value lines.
      var strings = [];
      var totalSize = 0;
      for (var key in env) {
        if (typeof env[key] === 'string') {
          var line = key + '=' + env[key];
          strings.push(line);
          totalSize += line.length;
        }
      }
      if (totalSize > TOTAL_ENV_SIZE) {
        throw new Error('Environment size exceeded TOTAL_ENV_SIZE!');
      }
  
      // Make new.
      var ptrSize = 4;
      for (var i = 0; i < strings.length; i++) {
        var line = strings[i];
        writeAsciiToMemory(line, poolPtr);
        HEAP32[(((envPtr)+(i * ptrSize))>>2)]=poolPtr;
        poolPtr += line.length + 1;
      }
      HEAP32[(((envPtr)+(strings.length * ptrSize))>>2)]=0;
    }var ENV={};function _getenv(name) {
      // char *getenv(const char *name);
      // http://pubs.opengroup.org/onlinepubs/009695399/functions/getenv.html
      if (name === 0) return 0;
      name = Pointer_stringify(name);
      if (!ENV.hasOwnProperty(name)) return 0;
  
      if (_getenv.ret) _free(_getenv.ret);
      _getenv.ret = allocate(intArrayFromString(ENV[name]), 'i8', ALLOC_NORMAL);
      return _getenv.ret;
    }

  function _gettimeofday(ptr) {
      var now = Date.now();
      HEAP32[((ptr)>>2)]=(now/1000)|0; // seconds
      HEAP32[(((ptr)+(4))>>2)]=((now % 1000)*1000)|0; // microseconds
      return 0;
    }

  
  function _emscripten_memcpy_big(dest, src, num) {
      HEAPU8.set(HEAPU8.subarray(src, src+num), dest);
      return dest;
    } 
  Module["_memcpy"] = _memcpy;

  var _llvm_pow_f64=Math_pow;

   
  Module["_sbrk"] = _sbrk;

   
  Module["_memmove"] = _memmove;

  
  var __sigalrm_handler=0;function _signal(sig, func) {
      if (sig == 14 /*SIGALRM*/) {
        __sigalrm_handler = func;
      } else {
        Module.printErr('Calling stub instead of signal()');
      }
      return 0;
    }

  function _llvm_stacksave() {
      var self = _llvm_stacksave;
      if (!self.LLVM_SAVEDSTACKS) {
        self.LLVM_SAVEDSTACKS = [];
      }
      self.LLVM_SAVEDSTACKS.push(Runtime.stackSave());
      return self.LLVM_SAVEDSTACKS.length-1;
    }

  
  
  var cttz_i8 = allocate([8,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,6,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,7,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,6,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0], "i8", ALLOC_STATIC);function _llvm_cttz_i32(x) {
      x = x|0;
      var ret = 0;
      ret = ((HEAP8[(((cttz_i8)+(x & 0xff))>>0)])|0);
      if ((ret|0) < 8) return ret|0;
      ret = ((HEAP8[(((cttz_i8)+((x >> 8)&0xff))>>0)])|0);
      if ((ret|0) < 8) return (ret + 8)|0;
      ret = ((HEAP8[(((cttz_i8)+((x >> 16)&0xff))>>0)])|0);
      if ((ret|0) < 8) return (ret + 16)|0;
      return (((HEAP8[(((cttz_i8)+(x >>> 24))>>0)])|0) + 24)|0;
    } 
  Module["___udivmoddi4"] = ___udivmoddi4; 
  Module["___uremdi3"] = ___uremdi3;

   
  Module["_llvm_bswap_i32"] = _llvm_bswap_i32;

   
  Module["_round"] = _round;

  function ___syscall40(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // rmdir
      var path = SYSCALLS.getStr();
      FS.rmdir(path);
      return 0;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  function _gmtime_r(time, tmPtr) {
      var date = new Date(HEAP32[((time)>>2)]*1000);
      HEAP32[((tmPtr)>>2)]=date.getUTCSeconds();
      HEAP32[(((tmPtr)+(4))>>2)]=date.getUTCMinutes();
      HEAP32[(((tmPtr)+(8))>>2)]=date.getUTCHours();
      HEAP32[(((tmPtr)+(12))>>2)]=date.getUTCDate();
      HEAP32[(((tmPtr)+(16))>>2)]=date.getUTCMonth();
      HEAP32[(((tmPtr)+(20))>>2)]=date.getUTCFullYear()-1900;
      HEAP32[(((tmPtr)+(24))>>2)]=date.getUTCDay();
      HEAP32[(((tmPtr)+(36))>>2)]=0;
      HEAP32[(((tmPtr)+(32))>>2)]=0;
      var start = Date.UTC(date.getUTCFullYear(), 0, 1, 0, 0, 0, 0);
      var yday = ((date.getTime() - start) / (1000 * 60 * 60 * 24))|0;
      HEAP32[(((tmPtr)+(28))>>2)]=yday;
      HEAP32[(((tmPtr)+(40))>>2)]=___tm_timezone;
  
      return tmPtr;
    }

  function ___assert_fail(condition, filename, line, func) {
      ABORT = true;
      throw 'Assertion failed: ' + Pointer_stringify(condition) + ', at: ' + [filename ? Pointer_stringify(filename) : 'unknown filename', line, func ? Pointer_stringify(func) : 'unknown function'] + ' at ' + stackTrace();
    }

   
  Module["_memset"] = _memset;

  function ___syscall75(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // setrlimit
      return 0; // no-op
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

   
  Module["_bitshift64Shl"] = _bitshift64Shl;

  function _abort() {
      Module['abort']();
    }

   
  Module["___divdi3"] = ___divdi3;

  function ___lock() {}

  function ___unlock() {}

  var _fabs=Math_abs;

  function _clock() {
      if (_clock.start === undefined) _clock.start = Date.now();
      return ((Date.now() - _clock.start) * (1000000 / 1000))|0;
    }

  
  function __isLeapYear(year) {
        return year%4 === 0 && (year%100 !== 0 || year%400 === 0);
    }
  
  function __arraySum(array, index) {
      var sum = 0;
      for (var i = 0; i <= index; sum += array[i++]);
      return sum;
    }
  
  
  var __MONTH_DAYS_LEAP=[31,29,31,30,31,30,31,31,30,31,30,31];
  
  var __MONTH_DAYS_REGULAR=[31,28,31,30,31,30,31,31,30,31,30,31];function __addDays(date, days) {
      var newDate = new Date(date.getTime());
      while(days > 0) {
        var leap = __isLeapYear(newDate.getFullYear());
        var currentMonth = newDate.getMonth();
        var daysInCurrentMonth = (leap ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR)[currentMonth];
  
        if (days > daysInCurrentMonth-newDate.getDate()) {
          // we spill over to next month
          days -= (daysInCurrentMonth-newDate.getDate()+1);
          newDate.setDate(1);
          if (currentMonth < 11) {
            newDate.setMonth(currentMonth+1)
          } else {
            newDate.setMonth(0);
            newDate.setFullYear(newDate.getFullYear()+1);
          }
        } else {
          // we stay in current month 
          newDate.setDate(newDate.getDate()+days);
          return newDate;
        }
      }
  
      return newDate;
    }function _strftime(s, maxsize, format, tm) {
      // size_t strftime(char *restrict s, size_t maxsize, const char *restrict format, const struct tm *restrict timeptr);
      // http://pubs.opengroup.org/onlinepubs/009695399/functions/strftime.html
  
      var tm_zone = HEAP32[(((tm)+(40))>>2)];
  
      var date = {
        tm_sec: HEAP32[((tm)>>2)],
        tm_min: HEAP32[(((tm)+(4))>>2)],
        tm_hour: HEAP32[(((tm)+(8))>>2)],
        tm_mday: HEAP32[(((tm)+(12))>>2)],
        tm_mon: HEAP32[(((tm)+(16))>>2)],
        tm_year: HEAP32[(((tm)+(20))>>2)],
        tm_wday: HEAP32[(((tm)+(24))>>2)],
        tm_yday: HEAP32[(((tm)+(28))>>2)],
        tm_isdst: HEAP32[(((tm)+(32))>>2)],
        tm_gmtoff: HEAP32[(((tm)+(36))>>2)],
        tm_zone: tm_zone ? Pointer_stringify(tm_zone) : ''
      };
  
      var pattern = Pointer_stringify(format);
  
      // expand format
      var EXPANSION_RULES_1 = {
        '%c': '%a %b %d %H:%M:%S %Y',     // Replaced by the locale's appropriate date and time representation - e.g., Mon Aug  3 14:02:01 2013
        '%D': '%m/%d/%y',                 // Equivalent to %m / %d / %y
        '%F': '%Y-%m-%d',                 // Equivalent to %Y - %m - %d
        '%h': '%b',                       // Equivalent to %b
        '%r': '%I:%M:%S %p',              // Replaced by the time in a.m. and p.m. notation
        '%R': '%H:%M',                    // Replaced by the time in 24-hour notation
        '%T': '%H:%M:%S',                 // Replaced by the time
        '%x': '%m/%d/%y',                 // Replaced by the locale's appropriate date representation
        '%X': '%H:%M:%S'                  // Replaced by the locale's appropriate date representation
      };
      for (var rule in EXPANSION_RULES_1) {
        pattern = pattern.replace(new RegExp(rule, 'g'), EXPANSION_RULES_1[rule]);
      }
  
      var WEEKDAYS = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
      var MONTHS = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
  
      function leadingSomething(value, digits, character) {
        var str = typeof value === 'number' ? value.toString() : (value || '');
        while (str.length < digits) {
          str = character[0]+str;
        }
        return str;
      };
  
      function leadingNulls(value, digits) {
        return leadingSomething(value, digits, '0');
      };
  
      function compareByDay(date1, date2) {
        function sgn(value) {
          return value < 0 ? -1 : (value > 0 ? 1 : 0);
        };
  
        var compare;
        if ((compare = sgn(date1.getFullYear()-date2.getFullYear())) === 0) {
          if ((compare = sgn(date1.getMonth()-date2.getMonth())) === 0) {
            compare = sgn(date1.getDate()-date2.getDate());
          }
        }
        return compare;
      };
  
      function getFirstWeekStartDate(janFourth) {
          switch (janFourth.getDay()) {
            case 0: // Sunday
              return new Date(janFourth.getFullYear()-1, 11, 29);
            case 1: // Monday
              return janFourth;
            case 2: // Tuesday
              return new Date(janFourth.getFullYear(), 0, 3);
            case 3: // Wednesday
              return new Date(janFourth.getFullYear(), 0, 2);
            case 4: // Thursday
              return new Date(janFourth.getFullYear(), 0, 1);
            case 5: // Friday
              return new Date(janFourth.getFullYear()-1, 11, 31);
            case 6: // Saturday
              return new Date(janFourth.getFullYear()-1, 11, 30);
          }
      };
  
      function getWeekBasedYear(date) {
          var thisDate = __addDays(new Date(date.tm_year+1900, 0, 1), date.tm_yday);
  
          var janFourthThisYear = new Date(thisDate.getFullYear(), 0, 4);
          var janFourthNextYear = new Date(thisDate.getFullYear()+1, 0, 4);
  
          var firstWeekStartThisYear = getFirstWeekStartDate(janFourthThisYear);
          var firstWeekStartNextYear = getFirstWeekStartDate(janFourthNextYear);
  
          if (compareByDay(firstWeekStartThisYear, thisDate) <= 0) {
            // this date is after the start of the first week of this year
            if (compareByDay(firstWeekStartNextYear, thisDate) <= 0) {
              return thisDate.getFullYear()+1;
            } else {
              return thisDate.getFullYear();
            }
          } else { 
            return thisDate.getFullYear()-1;
          }
      };
  
      var EXPANSION_RULES_2 = {
        '%a': function(date) {
          return WEEKDAYS[date.tm_wday].substring(0,3);
        },
        '%A': function(date) {
          return WEEKDAYS[date.tm_wday];
        },
        '%b': function(date) {
          return MONTHS[date.tm_mon].substring(0,3);
        },
        '%B': function(date) {
          return MONTHS[date.tm_mon];
        },
        '%C': function(date) {
          var year = date.tm_year+1900;
          return leadingNulls((year/100)|0,2);
        },
        '%d': function(date) {
          return leadingNulls(date.tm_mday, 2);
        },
        '%e': function(date) {
          return leadingSomething(date.tm_mday, 2, ' ');
        },
        '%g': function(date) {
          // %g, %G, and %V give values according to the ISO 8601:2000 standard week-based year. 
          // In this system, weeks begin on a Monday and week 1 of the year is the week that includes 
          // January 4th, which is also the week that includes the first Thursday of the year, and 
          // is also the first week that contains at least four days in the year. 
          // If the first Monday of January is the 2nd, 3rd, or 4th, the preceding days are part of 
          // the last week of the preceding year; thus, for Saturday 2nd January 1999, 
          // %G is replaced by 1998 and %V is replaced by 53. If December 29th, 30th, 
          // or 31st is a Monday, it and any following days are part of week 1 of the following year. 
          // Thus, for Tuesday 30th December 1997, %G is replaced by 1998 and %V is replaced by 01.
          
          return getWeekBasedYear(date).toString().substring(2);
        },
        '%G': function(date) {
          return getWeekBasedYear(date);
        },
        '%H': function(date) {
          return leadingNulls(date.tm_hour, 2);
        },
        '%I': function(date) {
          var twelveHour = date.tm_hour;
          if (twelveHour == 0) twelveHour = 12;
          else if (twelveHour > 12) twelveHour -= 12;
          return leadingNulls(twelveHour, 2);
        },
        '%j': function(date) {
          // Day of the year (001-366)
          return leadingNulls(date.tm_mday+__arraySum(__isLeapYear(date.tm_year+1900) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, date.tm_mon-1), 3);
        },
        '%m': function(date) {
          return leadingNulls(date.tm_mon+1, 2);
        },
        '%M': function(date) {
          return leadingNulls(date.tm_min, 2);
        },
        '%n': function() {
          return '\n';
        },
        '%p': function(date) {
          if (date.tm_hour >= 0 && date.tm_hour < 12) {
            return 'AM';
          } else {
            return 'PM';
          }
        },
        '%S': function(date) {
          return leadingNulls(date.tm_sec, 2);
        },
        '%t': function() {
          return '\t';
        },
        '%u': function(date) {
          var day = new Date(date.tm_year+1900, date.tm_mon+1, date.tm_mday, 0, 0, 0, 0);
          return day.getDay() || 7;
        },
        '%U': function(date) {
          // Replaced by the week number of the year as a decimal number [00,53]. 
          // The first Sunday of January is the first day of week 1; 
          // days in the new year before this are in week 0. [ tm_year, tm_wday, tm_yday]
          var janFirst = new Date(date.tm_year+1900, 0, 1);
          var firstSunday = janFirst.getDay() === 0 ? janFirst : __addDays(janFirst, 7-janFirst.getDay());
          var endDate = new Date(date.tm_year+1900, date.tm_mon, date.tm_mday);
          
          // is target date after the first Sunday?
          if (compareByDay(firstSunday, endDate) < 0) {
            // calculate difference in days between first Sunday and endDate
            var februaryFirstUntilEndMonth = __arraySum(__isLeapYear(endDate.getFullYear()) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, endDate.getMonth()-1)-31;
            var firstSundayUntilEndJanuary = 31-firstSunday.getDate();
            var days = firstSundayUntilEndJanuary+februaryFirstUntilEndMonth+endDate.getDate();
            return leadingNulls(Math.ceil(days/7), 2);
          }
  
          return compareByDay(firstSunday, janFirst) === 0 ? '01': '00';
        },
        '%V': function(date) {
          // Replaced by the week number of the year (Monday as the first day of the week) 
          // as a decimal number [01,53]. If the week containing 1 January has four 
          // or more days in the new year, then it is considered week 1. 
          // Otherwise, it is the last week of the previous year, and the next week is week 1. 
          // Both January 4th and the first Thursday of January are always in week 1. [ tm_year, tm_wday, tm_yday]
          var janFourthThisYear = new Date(date.tm_year+1900, 0, 4);
          var janFourthNextYear = new Date(date.tm_year+1901, 0, 4);
  
          var firstWeekStartThisYear = getFirstWeekStartDate(janFourthThisYear);
          var firstWeekStartNextYear = getFirstWeekStartDate(janFourthNextYear);
  
          var endDate = __addDays(new Date(date.tm_year+1900, 0, 1), date.tm_yday);
  
          if (compareByDay(endDate, firstWeekStartThisYear) < 0) {
            // if given date is before this years first week, then it belongs to the 53rd week of last year
            return '53';
          } 
  
          if (compareByDay(firstWeekStartNextYear, endDate) <= 0) {
            // if given date is after next years first week, then it belongs to the 01th week of next year
            return '01';
          }
  
          // given date is in between CW 01..53 of this calendar year
          var daysDifference;
          if (firstWeekStartThisYear.getFullYear() < date.tm_year+1900) {
            // first CW of this year starts last year
            daysDifference = date.tm_yday+32-firstWeekStartThisYear.getDate()
          } else {
            // first CW of this year starts this year
            daysDifference = date.tm_yday+1-firstWeekStartThisYear.getDate();
          }
          return leadingNulls(Math.ceil(daysDifference/7), 2);
        },
        '%w': function(date) {
          var day = new Date(date.tm_year+1900, date.tm_mon+1, date.tm_mday, 0, 0, 0, 0);
          return day.getDay();
        },
        '%W': function(date) {
          // Replaced by the week number of the year as a decimal number [00,53]. 
          // The first Monday of January is the first day of week 1; 
          // days in the new year before this are in week 0. [ tm_year, tm_wday, tm_yday]
          var janFirst = new Date(date.tm_year, 0, 1);
          var firstMonday = janFirst.getDay() === 1 ? janFirst : __addDays(janFirst, janFirst.getDay() === 0 ? 1 : 7-janFirst.getDay()+1);
          var endDate = new Date(date.tm_year+1900, date.tm_mon, date.tm_mday);
  
          // is target date after the first Monday?
          if (compareByDay(firstMonday, endDate) < 0) {
            var februaryFirstUntilEndMonth = __arraySum(__isLeapYear(endDate.getFullYear()) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, endDate.getMonth()-1)-31;
            var firstMondayUntilEndJanuary = 31-firstMonday.getDate();
            var days = firstMondayUntilEndJanuary+februaryFirstUntilEndMonth+endDate.getDate();
            return leadingNulls(Math.ceil(days/7), 2);
          }
          return compareByDay(firstMonday, janFirst) === 0 ? '01': '00';
        },
        '%y': function(date) {
          // Replaced by the last two digits of the year as a decimal number [00,99]. [ tm_year]
          return (date.tm_year+1900).toString().substring(2);
        },
        '%Y': function(date) {
          // Replaced by the year as a decimal number (for example, 1997). [ tm_year]
          return date.tm_year+1900;
        },
        '%z': function(date) {
          // Replaced by the offset from UTC in the ISO 8601:2000 standard format ( +hhmm or -hhmm ).
          // For example, "-0430" means 4 hours 30 minutes behind UTC (west of Greenwich).
          var off = date.tm_gmtoff;
          var ahead = off >= 0;
          off = Math.abs(off) / 60;
          // convert from minutes into hhmm format (which means 60 minutes = 100 units)
          off = (off / 60)*100 + (off % 60);
          return (ahead ? '+' : '-') + String("0000" + off).slice(-4);
        },
        '%Z': function(date) {
          return date.tm_zone;
        },
        '%%': function() {
          return '%';
        }
      };
      for (var rule in EXPANSION_RULES_2) {
        if (pattern.indexOf(rule) >= 0) {
          pattern = pattern.replace(new RegExp(rule, 'g'), EXPANSION_RULES_2[rule](date));
        }
      }
  
      var bytes = intArrayFromString(pattern, false);
      if (bytes.length > maxsize) {
        return 0;
      } 
  
      writeArrayToMemory(bytes, s);
      return bytes.length-1;
    }

  
  function __exit(status) {
      // void _exit(int status);
      // http://pubs.opengroup.org/onlinepubs/000095399/functions/exit.html
      Module['exit'](status);
    }function _exit(status) {
      __exit(status);
    }


   
  Module["_llvm_bswap_i16"] = _llvm_bswap_i16;

  var _llvm_ctlz_i32=true;

  function _gmtime(time) {
      return _gmtime_r(time, ___tm_current);
    }

  function ___syscall10(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // unlink
      var path = SYSCALLS.getStr();
      FS.unlink(path);
      return 0;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }


   
  Module["___remdi3"] = ___remdi3;

  function ___syscall5(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // open
      var pathname = SYSCALLS.getStr(), flags = SYSCALLS.get(), mode = SYSCALLS.get() // optional TODO
      var stream = FS.open(pathname, flags, mode);
      return stream.fd;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  function ___syscall4(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // write
      var stream = SYSCALLS.getStreamFromFD(), buf = SYSCALLS.get(), count = SYSCALLS.get();
      return FS.write(stream, HEAP8,buf, count);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

   
  Module["___udivdi3"] = ___udivdi3;

  
   
  Module["___muldsi3"] = ___muldsi3; 
  Module["___muldi3"] = ___muldi3;


  function ___syscall340(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // prlimit64
      var pid = SYSCALLS.get(), resource = SYSCALLS.get(), new_limit = SYSCALLS.get(), old_limit = SYSCALLS.get();
      if (old_limit) { // just report no limits
        HEAP32[((old_limit)>>2)]=-1;  // RLIM_INFINITY
        HEAP32[(((old_limit)+(4))>>2)]=-1;  // RLIM_INFINITY
        HEAP32[(((old_limit)+(8))>>2)]=-1;  // RLIM_INFINITY
        HEAP32[(((old_limit)+(12))>>2)]=-1;  // RLIM_INFINITY
      }
      return 0;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }


  function ___syscall221(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // fcntl64
      var stream = SYSCALLS.getStreamFromFD(), cmd = SYSCALLS.get();
      switch (cmd) {
        case 0: {
          var arg = SYSCALLS.get();
          if (arg < 0) {
            return -ERRNO_CODES.EINVAL;
          }
          var newStream;
          newStream = FS.open(stream.path, stream.flags, 0, arg);
          return newStream.fd;
        }
        case 1:
        case 2:
          return 0;  // FD_CLOEXEC makes no sense for a single process.
        case 3:
          return stream.flags;
        case 4: {
          var arg = SYSCALLS.get();
          stream.flags |= arg;
          return 0;
        }
        case 12:
        case 12: {
          var arg = SYSCALLS.get();
          var offset = 0;
          // We're always unlocked.
          HEAP16[(((arg)+(offset))>>1)]=2;
          return 0;
        }
        case 13:
        case 14:
        case 13:
        case 14:
          return 0; // Pretend that the locking is successful.
        case 16:
        case 8:
          return -ERRNO_CODES.EINVAL; // These are for sockets. We don't have them fully implemented yet.
        case 9:
          // musl trusts getown return values, due to a bug where they must be, as they overlap with errors. just return -1 here, so fnctl() returns that, and we set errno ourselves.
          ___setErrNo(ERRNO_CODES.EINVAL);
          return -1;
        default: {
          return -ERRNO_CODES.EINVAL;
        }
      }
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  function _time(ptr) {
      var ret = (Date.now()/1000)|0;
      if (ptr) {
        HEAP32[((ptr)>>2)]=ret;
      }
      return ret;
    }

  function ___syscall142(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // newselect
      // readfds are supported,
      // writefds checks socket open status
      // exceptfds not supported
      // timeout is always 0 - fully async
      var nfds = SYSCALLS.get(), readfds = SYSCALLS.get(), writefds = SYSCALLS.get(), exceptfds = SYSCALLS.get(), timeout = SYSCALLS.get();
  
      assert(nfds <= 64, 'nfds must be less than or equal to 64');  // fd sets have 64 bits // TODO: this could be 1024 based on current musl headers
      assert(!exceptfds, 'exceptfds not supported');
  
      var total = 0;
      
      var srcReadLow = (readfds ? HEAP32[((readfds)>>2)] : 0),
          srcReadHigh = (readfds ? HEAP32[(((readfds)+(4))>>2)] : 0);
      var srcWriteLow = (writefds ? HEAP32[((writefds)>>2)] : 0),
          srcWriteHigh = (writefds ? HEAP32[(((writefds)+(4))>>2)] : 0);
      var srcExceptLow = (exceptfds ? HEAP32[((exceptfds)>>2)] : 0),
          srcExceptHigh = (exceptfds ? HEAP32[(((exceptfds)+(4))>>2)] : 0);
  
      var dstReadLow = 0,
          dstReadHigh = 0;
      var dstWriteLow = 0,
          dstWriteHigh = 0;
      var dstExceptLow = 0,
          dstExceptHigh = 0;
  
      var allLow = (readfds ? HEAP32[((readfds)>>2)] : 0) |
                   (writefds ? HEAP32[((writefds)>>2)] : 0) |
                   (exceptfds ? HEAP32[((exceptfds)>>2)] : 0);
      var allHigh = (readfds ? HEAP32[(((readfds)+(4))>>2)] : 0) |
                    (writefds ? HEAP32[(((writefds)+(4))>>2)] : 0) |
                    (exceptfds ? HEAP32[(((exceptfds)+(4))>>2)] : 0);
  
      function check(fd, low, high, val) {
        return (fd < 32 ? (low & val) : (high & val));
      }
  
      for (var fd = 0; fd < nfds; fd++) {
        var mask = 1 << (fd % 32);
        if (!(check(fd, allLow, allHigh, mask))) {
          continue;  // index isn't in the set
        }
  
        var stream = FS.getStream(fd);
        if (!stream) throw new FS.ErrnoError(ERRNO_CODES.EBADF);
  
        var flags = SYSCALLS.DEFAULT_POLLMASK;
  
        if (stream.stream_ops.poll) {
          flags = stream.stream_ops.poll(stream);
        }
  
        if ((flags & 1) && check(fd, srcReadLow, srcReadHigh, mask)) {
          fd < 32 ? (dstReadLow = dstReadLow | mask) : (dstReadHigh = dstReadHigh | mask);
          total++;
        }
        if ((flags & 4) && check(fd, srcWriteLow, srcWriteHigh, mask)) {
          fd < 32 ? (dstWriteLow = dstWriteLow | mask) : (dstWriteHigh = dstWriteHigh | mask);
          total++;
        }
        if ((flags & 2) && check(fd, srcExceptLow, srcExceptHigh, mask)) {
          fd < 32 ? (dstExceptLow = dstExceptLow | mask) : (dstExceptHigh = dstExceptHigh | mask);
          total++;
        }
      }
  
      if (readfds) {
        HEAP32[((readfds)>>2)]=dstReadLow;
        HEAP32[(((readfds)+(4))>>2)]=dstReadHigh;
      }
      if (writefds) {
        HEAP32[((writefds)>>2)]=dstWriteLow;
        HEAP32[(((writefds)+(4))>>2)]=dstWriteHigh;
      }
      if (exceptfds) {
        HEAP32[((exceptfds)>>2)]=dstExceptLow;
        HEAP32[(((exceptfds)+(4))>>2)]=dstExceptHigh;
      }
      
      return total;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  function ___syscall140(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // llseek
      var stream = SYSCALLS.getStreamFromFD(), offset_high = SYSCALLS.get(), offset_low = SYSCALLS.get(), result = SYSCALLS.get(), whence = SYSCALLS.get();
      // NOTE: offset_high is unused - Emscripten's off_t is 32-bit
      var offset = offset_low;
      FS.llseek(stream, offset, whence);
      HEAP32[((result)>>2)]=stream.position;
      if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null; // reset readdir state
      return 0;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  function ___syscall145(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // readv
      var stream = SYSCALLS.getStreamFromFD(), iov = SYSCALLS.get(), iovcnt = SYSCALLS.get();
      return SYSCALLS.doReadv(stream, iov, iovcnt);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  function ___syscall146(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // writev
      var stream = SYSCALLS.getStreamFromFD(), iov = SYSCALLS.get(), iovcnt = SYSCALLS.get();
      return SYSCALLS.doWritev(stream, iov, iovcnt);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }

  var _llvm_nacl_atomic_cmpxchg_i32=undefined;

  function ___syscall220(which, varargs) {SYSCALLS.varargs = varargs;
  try {
   // SYS_getdents64
      var stream = SYSCALLS.getStreamFromFD(), dirp = SYSCALLS.get(), count = SYSCALLS.get();
      if (!stream.getdents) {
        stream.getdents = FS.readdir(stream.path);
      }
      var pos = 0;
      while (stream.getdents.length > 0 && pos + 268 <= count) {
        var id;
        var type;
        var name = stream.getdents.pop();
        assert(name.length < 256); // limit of dirent struct
        if (name[0] === '.') {
          id = 1;
          type = 4; // DT_DIR
        } else {
          var child = FS.lookupNode(stream.node, name);
          id = child.id;
          type = FS.isChrdev(child.mode) ? 2 :  // DT_CHR, character device.
                 FS.isDir(child.mode) ? 4 :     // DT_DIR, directory.
                 FS.isLink(child.mode) ? 10 :   // DT_LNK, symbolic link.
                 8;                             // DT_REG, regular file.
        }
        HEAP32[((dirp + pos)>>2)]=id;
        HEAP32[(((dirp + pos)+(4))>>2)]=stream.position;
        HEAP16[(((dirp + pos)+(8))>>1)]=268;
        HEAP8[(((dirp + pos)+(10))>>0)]=type;
        for (var i = 0; i < name.length; i++) {
          HEAP8[(((dirp + pos)+(11 + i))>>0)]=name.charCodeAt(i);
        }
        HEAP8[(((dirp + pos)+(11 + i))>>0)]=0;
        pos += 268;
      }
      return pos;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
FS.staticInit();__ATINIT__.unshift(function() { if (!Module["noFSInit"] && !FS.init.initialized) FS.init() });__ATMAIN__.push(function() { FS.ignorePermissions = false });__ATEXIT__.push(function() { FS.quit() });Module["FS_createFolder"] = FS.createFolder;Module["FS_createPath"] = FS.createPath;Module["FS_createDataFile"] = FS.createDataFile;Module["FS_createPreloadedFile"] = FS.createPreloadedFile;Module["FS_createLazyFile"] = FS.createLazyFile;Module["FS_createLink"] = FS.createLink;Module["FS_createDevice"] = FS.createDevice;Module["FS_unlink"] = FS.unlink;;
__ATINIT__.unshift(function() { TTY.init() });__ATEXIT__.push(function() { TTY.shutdown() });;
if (ENVIRONMENT_IS_NODE) { var fs = require("fs"); var NODEJS_PATH = require("path"); NODEFS.staticInit(); };
___buildEnvironment(ENV);;
DYNAMICTOP_PTR = allocate(1, "i32", ALLOC_STATIC);

STACK_BASE = STACKTOP = Runtime.alignMemory(STATICTOP);

STACK_MAX = STACK_BASE + TOTAL_STACK;

DYNAMIC_BASE = Runtime.alignMemory(STACK_MAX);

HEAP32[DYNAMICTOP_PTR>>2] = DYNAMIC_BASE;

staticSealed = true; // seal the static portion of memory

assert(DYNAMIC_BASE < TOTAL_MEMORY, "TOTAL_MEMORY not big enough for stack");


function nullFunc_iiiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'iiiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiiiifi(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiiiifi'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_vi(x) { Module["printErr"]("Invalid function pointer called with signature 'vi'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_vii(x) { Module["printErr"]("Invalid function pointer called with signature 'vii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_iiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'iiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiif(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiif'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_ii(x) { Module["printErr"]("Invalid function pointer called with signature 'ii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiiiiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiiiiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viifi(x) { Module["printErr"]("Invalid function pointer called with signature 'viifi'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viidi(x) { Module["printErr"]("Invalid function pointer called with signature 'viidi'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiiiiiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiiiiiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_iiiiiiiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'iiiiiiiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiiiiiid(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiiiiiid'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_iiii(x) { Module["printErr"]("Invalid function pointer called with signature 'iiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_fii(x) { Module["printErr"]("Invalid function pointer called with signature 'fii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_fiii(x) { Module["printErr"]("Invalid function pointer called with signature 'fiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_iiiiiiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'iiiiiiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_dd(x) { Module["printErr"]("Invalid function pointer called with signature 'dd'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiiiiiiiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiiiiiiiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_dddd(x) { Module["printErr"]("Invalid function pointer called with signature 'dddd'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiiiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiiiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_iii(x) { Module["printErr"]("Invalid function pointer called with signature 'iii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_iiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'iiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_didd(x) { Module["printErr"]("Invalid function pointer called with signature 'didd'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_did(x) { Module["printErr"]("Invalid function pointer called with signature 'did'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_iiiiiiidiiddii(x) { Module["printErr"]("Invalid function pointer called with signature 'iiiiiiidiiddii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_iiiiiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'iiiiiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiiifii(x) { Module["printErr"]("Invalid function pointer called with signature 'viiiifii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viii(x) { Module["printErr"]("Invalid function pointer called with signature 'viii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_iiiiiiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'iiiiiiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_iiiii(x) { Module["printErr"]("Invalid function pointer called with signature 'iiiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

function nullFunc_viiii(x) { Module["printErr"]("Invalid function pointer called with signature 'viiii'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)");  Module["printErr"]("Build with ASSERTIONS=2 for more info.");abort(x) }

Module['wasmTableSize'] = 218113;

Module['wasmMaxTableSize'] = 218113;

function invoke_iiiiiiii(index,a1,a2,a3,a4,a5,a6,a7) {
  try {
    return Module["dynCall_iiiiiiii"](index,a1,a2,a3,a4,a5,a6,a7);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiii(index,a1,a2,a3,a4,a5) {
  try {
    Module["dynCall_viiiii"](index,a1,a2,a3,a4,a5);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiiiifi(index,a1,a2,a3,a4,a5,a6,a7,a8) {
  try {
    Module["dynCall_viiiiiifi"](index,a1,a2,a3,a4,a5,a6,a7,a8);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_vi(index,a1) {
  try {
    Module["dynCall_vi"](index,a1);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_vii(index,a1,a2) {
  try {
    Module["dynCall_vii"](index,a1,a2);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_iiiiiii(index,a1,a2,a3,a4,a5,a6) {
  try {
    return Module["dynCall_iiiiiii"](index,a1,a2,a3,a4,a5,a6);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiif(index,a1,a2,a3,a4,a5) {
  try {
    Module["dynCall_viiiif"](index,a1,a2,a3,a4,a5);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_ii(index,a1) {
  try {
    return Module["dynCall_ii"](index,a1);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11) {
  try {
    Module["dynCall_viiiiiiiiiii"](index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viifi(index,a1,a2,a3,a4) {
  try {
    Module["dynCall_viifi"](index,a1,a2,a3,a4);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viidi(index,a1,a2,a3,a4) {
  try {
    Module["dynCall_viidi"](index,a1,a2,a3,a4);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12) {
  try {
    Module["dynCall_viiiiiiiiiiii"](index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_iiiiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11) {
  try {
    return Module["dynCall_iiiiiiiiiiii"](index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiiiiiid(index,a1,a2,a3,a4,a5,a6,a7,a8,a9) {
  try {
    Module["dynCall_viiiiiiiid"](index,a1,a2,a3,a4,a5,a6,a7,a8,a9);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_iiii(index,a1,a2,a3) {
  try {
    return Module["dynCall_iiii"](index,a1,a2,a3);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8) {
  try {
    Module["dynCall_viiiiiiii"](index,a1,a2,a3,a4,a5,a6,a7,a8);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_fii(index,a1,a2) {
  try {
    return Module["dynCall_fii"](index,a1,a2);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_fiii(index,a1,a2,a3) {
  try {
    return Module["dynCall_fiii"](index,a1,a2,a3);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_iiiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) {
  try {
    return Module["dynCall_iiiiiiiiiii"](index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_dd(index,a1) {
  try {
    return Module["dynCall_dd"](index,a1);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiiiiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13,a14) {
  try {
    Module["dynCall_viiiiiiiiiiiiii"](index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13,a14);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_dddd(index,a1,a2,a3) {
  try {
    return Module["dynCall_dddd"](index,a1,a2,a3);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiiiii(index,a1,a2,a3,a4,a5,a6,a7) {
  try {
    Module["dynCall_viiiiiii"](index,a1,a2,a3,a4,a5,a6,a7);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9) {
  try {
    Module["dynCall_viiiiiiiii"](index,a1,a2,a3,a4,a5,a6,a7,a8,a9);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) {
  try {
    Module["dynCall_viiiiiiiiii"](index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_iii(index,a1,a2) {
  try {
    return Module["dynCall_iii"](index,a1,a2);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_iiiiii(index,a1,a2,a3,a4,a5) {
  try {
    return Module["dynCall_iiiiii"](index,a1,a2,a3,a4,a5);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_didd(index,a1,a2,a3) {
  try {
    return Module["dynCall_didd"](index,a1,a2,a3);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiiii(index,a1,a2,a3,a4,a5,a6) {
  try {
    Module["dynCall_viiiiii"](index,a1,a2,a3,a4,a5,a6);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_did(index,a1,a2) {
  try {
    return Module["dynCall_did"](index,a1,a2);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_iiiiiiidiiddii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13) {
  try {
    return Module["dynCall_iiiiiiidiiddii"](index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_iiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9) {
  try {
    return Module["dynCall_iiiiiiiiii"](index,a1,a2,a3,a4,a5,a6,a7,a8,a9);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiiifii(index,a1,a2,a3,a4,a5,a6,a7) {
  try {
    Module["dynCall_viiiifii"](index,a1,a2,a3,a4,a5,a6,a7);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viii(index,a1,a2,a3) {
  try {
    Module["dynCall_viii"](index,a1,a2,a3);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_iiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8) {
  try {
    return Module["dynCall_iiiiiiiii"](index,a1,a2,a3,a4,a5,a6,a7,a8);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_iiiii(index,a1,a2,a3,a4) {
  try {
    return Module["dynCall_iiiii"](index,a1,a2,a3,a4);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

function invoke_viiii(index,a1,a2,a3,a4) {
  try {
    Module["dynCall_viiii"](index,a1,a2,a3,a4);
  } catch(e) {
    if (typeof e !== 'number' && e !== 'longjmp') throw e;
    Module["setThrew"](1, 0);
  }
}

Module.asmGlobalArg = { "Math": Math, "Int8Array": Int8Array, "Int16Array": Int16Array, "Int32Array": Int32Array, "Uint8Array": Uint8Array, "Uint16Array": Uint16Array, "Uint32Array": Uint32Array, "Float32Array": Float32Array, "Float64Array": Float64Array, "NaN": NaN, "Infinity": Infinity };

Module.asmLibraryArg = { "abort": abort, "assert": assert, "enlargeMemory": enlargeMemory, "getTotalMemory": getTotalMemory, "abortOnCannotGrowMemory": abortOnCannotGrowMemory, "abortStackOverflow": abortStackOverflow, "nullFunc_iiiiiiii": nullFunc_iiiiiiii, "nullFunc_viiiii": nullFunc_viiiii, "nullFunc_viiiiiifi": nullFunc_viiiiiifi, "nullFunc_vi": nullFunc_vi, "nullFunc_vii": nullFunc_vii, "nullFunc_iiiiiii": nullFunc_iiiiiii, "nullFunc_viiiif": nullFunc_viiiif, "nullFunc_ii": nullFunc_ii, "nullFunc_viiiiiiiiiii": nullFunc_viiiiiiiiiii, "nullFunc_viifi": nullFunc_viifi, "nullFunc_viidi": nullFunc_viidi, "nullFunc_viiiiiiiiiiii": nullFunc_viiiiiiiiiiii, "nullFunc_iiiiiiiiiiii": nullFunc_iiiiiiiiiiii, "nullFunc_viiiiiiiid": nullFunc_viiiiiiiid, "nullFunc_iiii": nullFunc_iiii, "nullFunc_viiiiiiii": nullFunc_viiiiiiii, "nullFunc_fii": nullFunc_fii, "nullFunc_fiii": nullFunc_fiii, "nullFunc_iiiiiiiiiii": nullFunc_iiiiiiiiiii, "nullFunc_dd": nullFunc_dd, "nullFunc_viiiiiiiiiiiiii": nullFunc_viiiiiiiiiiiiii, "nullFunc_dddd": nullFunc_dddd, "nullFunc_viiiiiii": nullFunc_viiiiiii, "nullFunc_viiiiiiiii": nullFunc_viiiiiiiii, "nullFunc_viiiiiiiiii": nullFunc_viiiiiiiiii, "nullFunc_iii": nullFunc_iii, "nullFunc_iiiiii": nullFunc_iiiiii, "nullFunc_didd": nullFunc_didd, "nullFunc_viiiiii": nullFunc_viiiiii, "nullFunc_did": nullFunc_did, "nullFunc_iiiiiiidiiddii": nullFunc_iiiiiiidiiddii, "nullFunc_iiiiiiiiii": nullFunc_iiiiiiiiii, "nullFunc_viiiifii": nullFunc_viiiifii, "nullFunc_viii": nullFunc_viii, "nullFunc_iiiiiiiii": nullFunc_iiiiiiiii, "nullFunc_iiiii": nullFunc_iiiii, "nullFunc_viiii": nullFunc_viiii, "invoke_iiiiiiii": invoke_iiiiiiii, "invoke_viiiii": invoke_viiiii, "invoke_viiiiiifi": invoke_viiiiiifi, "invoke_vi": invoke_vi, "invoke_vii": invoke_vii, "invoke_iiiiiii": invoke_iiiiiii, "invoke_viiiif": invoke_viiiif, "invoke_ii": invoke_ii, "invoke_viiiiiiiiiii": invoke_viiiiiiiiiii, "invoke_viifi": invoke_viifi, "invoke_viidi": invoke_viidi, "invoke_viiiiiiiiiiii": invoke_viiiiiiiiiiii, "invoke_iiiiiiiiiiii": invoke_iiiiiiiiiiii, "invoke_viiiiiiiid": invoke_viiiiiiiid, "invoke_iiii": invoke_iiii, "invoke_viiiiiiii": invoke_viiiiiiii, "invoke_fii": invoke_fii, "invoke_fiii": invoke_fiii, "invoke_iiiiiiiiiii": invoke_iiiiiiiiiii, "invoke_dd": invoke_dd, "invoke_viiiiiiiiiiiiii": invoke_viiiiiiiiiiiiii, "invoke_dddd": invoke_dddd, "invoke_viiiiiii": invoke_viiiiiii, "invoke_viiiiiiiii": invoke_viiiiiiiii, "invoke_viiiiiiiiii": invoke_viiiiiiiiii, "invoke_iii": invoke_iii, "invoke_iiiiii": invoke_iiiiii, "invoke_didd": invoke_didd, "invoke_viiiiii": invoke_viiiiii, "invoke_did": invoke_did, "invoke_iiiiiiidiiddii": invoke_iiiiiiidiiddii, "invoke_iiiiiiiiii": invoke_iiiiiiiiii, "invoke_viiiifii": invoke_viiiifii, "invoke_viii": invoke_viii, "invoke_iiiiiiiii": invoke_iiiiiiiii, "invoke_iiiii": invoke_iiiii, "invoke_viiii": invoke_viiii, "_fabs": _fabs, "___syscall221": ___syscall221, "_llvm_pow_f64": _llvm_pow_f64, "_signal": _signal, "_tzset": _tzset, "___syscall40": ___syscall40, "_nanosleep": _nanosleep, "_llvm_stackrestore": _llvm_stackrestore, "___assert_fail": ___assert_fail, "_usleep": _usleep, "___buildEnvironment": ___buildEnvironment, "_longjmp": _longjmp, "_llvm_exp2_f64": _llvm_exp2_f64, "__addDays": __addDays, "_localtime_r": _localtime_r, "_llvm_cttz_i32": _llvm_cttz_i32, "___setErrNo": ___setErrNo, "_llvm_pow_f32": _llvm_pow_f32, "___syscall197": ___syscall197, "___syscall196": ___syscall196, "___syscall195": ___syscall195, "_emscripten_longjmp": _emscripten_longjmp, "__exit": __exit, "_mktime": _mktime, "_strftime": _strftime, "_clock": _clock, "___syscall6": ___syscall6, "__arraySum": __arraySum, "_emscripten_memcpy_big": _emscripten_memcpy_big, "_gmtime": _gmtime, "_exit": _exit, "___syscall75": ___syscall75, "_llvm_stacksave": _llvm_stacksave, "___syscall77": ___syscall77, "_getenv": _getenv, "___syscall33": ___syscall33, "___syscall54": ___syscall54, "___unlock": ___unlock, "__isLeapYear": __isLeapYear, "___syscall38": ___syscall38, "___syscall10": ___syscall10, "___syscall220": ___syscall220, "_gmtime_r": _gmtime_r, "___syscall3": ___syscall3, "___syscall340": ___syscall340, "___lock": ___lock, "_llvm_exp2_f32": _llvm_exp2_f32, "_abort": _abort, "___syscall5": ___syscall5, "___syscall4": ___syscall4, "_time": _time, "_gettimeofday": _gettimeofday, "___syscall140": ___syscall140, "_localtime": _localtime, "___syscall142": ___syscall142, "___syscall145": ___syscall145, "___syscall146": ___syscall146, "DYNAMICTOP_PTR": DYNAMICTOP_PTR, "tempDoublePtr": tempDoublePtr, "ABORT": ABORT, "STACKTOP": STACKTOP, "STACK_MAX": STACK_MAX, "cttz_i8": cttz_i8 };
// EMSCRIPTEN_START_ASM
var asm =Module["asm"]// EMSCRIPTEN_END_ASM
(Module.asmGlobalArg, Module.asmLibraryArg, buffer);

var real__main = asm["_main"]; asm["_main"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__main.apply(null, arguments);
};

var real_stackSave = asm["stackSave"]; asm["stackSave"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real_stackSave.apply(null, arguments);
};

var real_getTempRet0 = asm["getTempRet0"]; asm["getTempRet0"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real_getTempRet0.apply(null, arguments);
};

var real____udivdi3 = asm["___udivdi3"]; asm["___udivdi3"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real____udivdi3.apply(null, arguments);
};

var real_setThrew = asm["setThrew"]; asm["setThrew"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real_setThrew.apply(null, arguments);
};

var real__bitshift64Lshr = asm["_bitshift64Lshr"]; asm["_bitshift64Lshr"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__bitshift64Lshr.apply(null, arguments);
};

var real__bitshift64Shl = asm["_bitshift64Shl"]; asm["_bitshift64Shl"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__bitshift64Shl.apply(null, arguments);
};

var real__fflush = asm["_fflush"]; asm["_fflush"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__fflush.apply(null, arguments);
};

var real__bitshift64Ashr = asm["_bitshift64Ashr"]; asm["_bitshift64Ashr"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__bitshift64Ashr.apply(null, arguments);
};

var real__sbrk = asm["_sbrk"]; asm["_sbrk"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__sbrk.apply(null, arguments);
};

var real__llvm_bswap_i32 = asm["_llvm_bswap_i32"]; asm["_llvm_bswap_i32"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__llvm_bswap_i32.apply(null, arguments);
};

var real____muldi3 = asm["___muldi3"]; asm["___muldi3"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real____muldi3.apply(null, arguments);
};

var real____uremdi3 = asm["___uremdi3"]; asm["___uremdi3"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real____uremdi3.apply(null, arguments);
};

var real____divdi3 = asm["___divdi3"]; asm["___divdi3"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real____divdi3.apply(null, arguments);
};

var real_stackAlloc = asm["stackAlloc"]; asm["stackAlloc"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real_stackAlloc.apply(null, arguments);
};

var real__i64Subtract = asm["_i64Subtract"]; asm["_i64Subtract"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__i64Subtract.apply(null, arguments);
};

var real____udivmoddi4 = asm["___udivmoddi4"]; asm["___udivmoddi4"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real____udivmoddi4.apply(null, arguments);
};

var real_setTempRet0 = asm["setTempRet0"]; asm["setTempRet0"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real_setTempRet0.apply(null, arguments);
};

var real__realloc = asm["_realloc"]; asm["_realloc"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__realloc.apply(null, arguments);
};

var real__i64Add = asm["_i64Add"]; asm["_i64Add"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__i64Add.apply(null, arguments);
};

var real__llvm_bswap_i16 = asm["_llvm_bswap_i16"]; asm["_llvm_bswap_i16"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__llvm_bswap_i16.apply(null, arguments);
};

var real__emscripten_get_global_libc = asm["_emscripten_get_global_libc"]; asm["_emscripten_get_global_libc"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__emscripten_get_global_libc.apply(null, arguments);
};

var real____remdi3 = asm["___remdi3"]; asm["___remdi3"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real____remdi3.apply(null, arguments);
};

var real____errno_location = asm["___errno_location"]; asm["___errno_location"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real____errno_location.apply(null, arguments);
};

var real____muldsi3 = asm["___muldsi3"]; asm["___muldsi3"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real____muldsi3.apply(null, arguments);
};

var real__testSetjmp = asm["_testSetjmp"]; asm["_testSetjmp"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__testSetjmp.apply(null, arguments);
};

var real__saveSetjmp = asm["_saveSetjmp"]; asm["_saveSetjmp"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__saveSetjmp.apply(null, arguments);
};

var real__free = asm["_free"]; asm["_free"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__free.apply(null, arguments);
};

var real__round = asm["_round"]; asm["_round"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__round.apply(null, arguments);
};

var real_establishStackSpace = asm["establishStackSpace"]; asm["establishStackSpace"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real_establishStackSpace.apply(null, arguments);
};

var real__memmove = asm["_memmove"]; asm["_memmove"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__memmove.apply(null, arguments);
};

var real_stackRestore = asm["stackRestore"]; asm["stackRestore"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real_stackRestore.apply(null, arguments);
};

var real__malloc = asm["_malloc"]; asm["_malloc"] = function() {
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
return real__malloc.apply(null, arguments);
};
Module["asm"] = asm;
var _main = Module["_main"] = function() { return Module["asm"]["_main"].apply(null, arguments) };
var stackSave = Module["stackSave"] = function() { return Module["asm"]["stackSave"].apply(null, arguments) };
var getTempRet0 = Module["getTempRet0"] = function() { return Module["asm"]["getTempRet0"].apply(null, arguments) };
var ___udivdi3 = Module["___udivdi3"] = function() { return Module["asm"]["___udivdi3"].apply(null, arguments) };
var setThrew = Module["setThrew"] = function() { return Module["asm"]["setThrew"].apply(null, arguments) };
var _bitshift64Lshr = Module["_bitshift64Lshr"] = function() { return Module["asm"]["_bitshift64Lshr"].apply(null, arguments) };
var _bitshift64Shl = Module["_bitshift64Shl"] = function() { return Module["asm"]["_bitshift64Shl"].apply(null, arguments) };
var _fflush = Module["_fflush"] = function() { return Module["asm"]["_fflush"].apply(null, arguments) };
var _bitshift64Ashr = Module["_bitshift64Ashr"] = function() { return Module["asm"]["_bitshift64Ashr"].apply(null, arguments) };
var _memset = Module["_memset"] = function() { return Module["asm"]["_memset"].apply(null, arguments) };
var _sbrk = Module["_sbrk"] = function() { return Module["asm"]["_sbrk"].apply(null, arguments) };
var _memcpy = Module["_memcpy"] = function() { return Module["asm"]["_memcpy"].apply(null, arguments) };
var _llvm_bswap_i32 = Module["_llvm_bswap_i32"] = function() { return Module["asm"]["_llvm_bswap_i32"].apply(null, arguments) };
var ___muldi3 = Module["___muldi3"] = function() { return Module["asm"]["___muldi3"].apply(null, arguments) };
var ___uremdi3 = Module["___uremdi3"] = function() { return Module["asm"]["___uremdi3"].apply(null, arguments) };
var ___divdi3 = Module["___divdi3"] = function() { return Module["asm"]["___divdi3"].apply(null, arguments) };
var stackAlloc = Module["stackAlloc"] = function() { return Module["asm"]["stackAlloc"].apply(null, arguments) };
var _i64Subtract = Module["_i64Subtract"] = function() { return Module["asm"]["_i64Subtract"].apply(null, arguments) };
var ___udivmoddi4 = Module["___udivmoddi4"] = function() { return Module["asm"]["___udivmoddi4"].apply(null, arguments) };
var setTempRet0 = Module["setTempRet0"] = function() { return Module["asm"]["setTempRet0"].apply(null, arguments) };
var _realloc = Module["_realloc"] = function() { return Module["asm"]["_realloc"].apply(null, arguments) };
var _i64Add = Module["_i64Add"] = function() { return Module["asm"]["_i64Add"].apply(null, arguments) };
var _llvm_bswap_i16 = Module["_llvm_bswap_i16"] = function() { return Module["asm"]["_llvm_bswap_i16"].apply(null, arguments) };
var _emscripten_get_global_libc = Module["_emscripten_get_global_libc"] = function() { return Module["asm"]["_emscripten_get_global_libc"].apply(null, arguments) };
var ___remdi3 = Module["___remdi3"] = function() { return Module["asm"]["___remdi3"].apply(null, arguments) };
var ___errno_location = Module["___errno_location"] = function() { return Module["asm"]["___errno_location"].apply(null, arguments) };
var ___muldsi3 = Module["___muldsi3"] = function() { return Module["asm"]["___muldsi3"].apply(null, arguments) };
var _testSetjmp = Module["_testSetjmp"] = function() { return Module["asm"]["_testSetjmp"].apply(null, arguments) };
var _saveSetjmp = Module["_saveSetjmp"] = function() { return Module["asm"]["_saveSetjmp"].apply(null, arguments) };
var _free = Module["_free"] = function() { return Module["asm"]["_free"].apply(null, arguments) };
var runPostSets = Module["runPostSets"] = function() { return Module["asm"]["runPostSets"].apply(null, arguments) };
var _round = Module["_round"] = function() { return Module["asm"]["_round"].apply(null, arguments) };
var establishStackSpace = Module["establishStackSpace"] = function() { return Module["asm"]["establishStackSpace"].apply(null, arguments) };
var _memmove = Module["_memmove"] = function() { return Module["asm"]["_memmove"].apply(null, arguments) };
var stackRestore = Module["stackRestore"] = function() { return Module["asm"]["stackRestore"].apply(null, arguments) };
var _malloc = Module["_malloc"] = function() { return Module["asm"]["_malloc"].apply(null, arguments) };
var dynCall_iiiiiiii = Module["dynCall_iiiiiiii"] = function() { return Module["asm"]["dynCall_iiiiiiii"].apply(null, arguments) };
var dynCall_viiiii = Module["dynCall_viiiii"] = function() { return Module["asm"]["dynCall_viiiii"].apply(null, arguments) };
var dynCall_viiiiiifi = Module["dynCall_viiiiiifi"] = function() { return Module["asm"]["dynCall_viiiiiifi"].apply(null, arguments) };
var dynCall_vi = Module["dynCall_vi"] = function() { return Module["asm"]["dynCall_vi"].apply(null, arguments) };
var dynCall_vii = Module["dynCall_vii"] = function() { return Module["asm"]["dynCall_vii"].apply(null, arguments) };
var dynCall_iiiiiii = Module["dynCall_iiiiiii"] = function() { return Module["asm"]["dynCall_iiiiiii"].apply(null, arguments) };
var dynCall_viiiif = Module["dynCall_viiiif"] = function() { return Module["asm"]["dynCall_viiiif"].apply(null, arguments) };
var dynCall_ii = Module["dynCall_ii"] = function() { return Module["asm"]["dynCall_ii"].apply(null, arguments) };
var dynCall_viiiiiiiiiii = Module["dynCall_viiiiiiiiiii"] = function() { return Module["asm"]["dynCall_viiiiiiiiiii"].apply(null, arguments) };
var dynCall_viifi = Module["dynCall_viifi"] = function() { return Module["asm"]["dynCall_viifi"].apply(null, arguments) };
var dynCall_viidi = Module["dynCall_viidi"] = function() { return Module["asm"]["dynCall_viidi"].apply(null, arguments) };
var dynCall_viiiiiiiiiiii = Module["dynCall_viiiiiiiiiiii"] = function() { return Module["asm"]["dynCall_viiiiiiiiiiii"].apply(null, arguments) };
var dynCall_iiiiiiiiiiii = Module["dynCall_iiiiiiiiiiii"] = function() { return Module["asm"]["dynCall_iiiiiiiiiiii"].apply(null, arguments) };
var dynCall_viiiiiiiid = Module["dynCall_viiiiiiiid"] = function() { return Module["asm"]["dynCall_viiiiiiiid"].apply(null, arguments) };
var dynCall_iiii = Module["dynCall_iiii"] = function() { return Module["asm"]["dynCall_iiii"].apply(null, arguments) };
var dynCall_viiiiiiii = Module["dynCall_viiiiiiii"] = function() { return Module["asm"]["dynCall_viiiiiiii"].apply(null, arguments) };
var dynCall_fii = Module["dynCall_fii"] = function() { return Module["asm"]["dynCall_fii"].apply(null, arguments) };
var dynCall_fiii = Module["dynCall_fiii"] = function() { return Module["asm"]["dynCall_fiii"].apply(null, arguments) };
var dynCall_iiiiiiiiiii = Module["dynCall_iiiiiiiiiii"] = function() { return Module["asm"]["dynCall_iiiiiiiiiii"].apply(null, arguments) };
var dynCall_dd = Module["dynCall_dd"] = function() { return Module["asm"]["dynCall_dd"].apply(null, arguments) };
var dynCall_viiiiiiiiiiiiii = Module["dynCall_viiiiiiiiiiiiii"] = function() { return Module["asm"]["dynCall_viiiiiiiiiiiiii"].apply(null, arguments) };
var dynCall_dddd = Module["dynCall_dddd"] = function() { return Module["asm"]["dynCall_dddd"].apply(null, arguments) };
var dynCall_viiiiiii = Module["dynCall_viiiiiii"] = function() { return Module["asm"]["dynCall_viiiiiii"].apply(null, arguments) };
var dynCall_viiiiiiiii = Module["dynCall_viiiiiiiii"] = function() { return Module["asm"]["dynCall_viiiiiiiii"].apply(null, arguments) };
var dynCall_viiiiiiiiii = Module["dynCall_viiiiiiiiii"] = function() { return Module["asm"]["dynCall_viiiiiiiiii"].apply(null, arguments) };
var dynCall_iii = Module["dynCall_iii"] = function() { return Module["asm"]["dynCall_iii"].apply(null, arguments) };
var dynCall_iiiiii = Module["dynCall_iiiiii"] = function() { return Module["asm"]["dynCall_iiiiii"].apply(null, arguments) };
var dynCall_didd = Module["dynCall_didd"] = function() { return Module["asm"]["dynCall_didd"].apply(null, arguments) };
var dynCall_viiiiii = Module["dynCall_viiiiii"] = function() { return Module["asm"]["dynCall_viiiiii"].apply(null, arguments) };
var dynCall_did = Module["dynCall_did"] = function() { return Module["asm"]["dynCall_did"].apply(null, arguments) };
var dynCall_iiiiiiidiiddii = Module["dynCall_iiiiiiidiiddii"] = function() { return Module["asm"]["dynCall_iiiiiiidiiddii"].apply(null, arguments) };
var dynCall_iiiiiiiiii = Module["dynCall_iiiiiiiiii"] = function() { return Module["asm"]["dynCall_iiiiiiiiii"].apply(null, arguments) };
var dynCall_viiiifii = Module["dynCall_viiiifii"] = function() { return Module["asm"]["dynCall_viiiifii"].apply(null, arguments) };
var dynCall_viii = Module["dynCall_viii"] = function() { return Module["asm"]["dynCall_viii"].apply(null, arguments) };
var dynCall_iiiiiiiii = Module["dynCall_iiiiiiiii"] = function() { return Module["asm"]["dynCall_iiiiiiiii"].apply(null, arguments) };
var dynCall_iiiii = Module["dynCall_iiiii"] = function() { return Module["asm"]["dynCall_iiiii"].apply(null, arguments) };
var dynCall_viiii = Module["dynCall_viiii"] = function() { return Module["asm"]["dynCall_viiii"].apply(null, arguments) };
;
Runtime.stackAlloc = Module['stackAlloc'];
Runtime.stackSave = Module['stackSave'];
Runtime.stackRestore = Module['stackRestore'];
Runtime.establishStackSpace = Module['establishStackSpace'];
Runtime.setTempRet0 = Module['setTempRet0'];
Runtime.getTempRet0 = Module['getTempRet0'];


// === Auto-generated postamble setup entry stuff ===

Module['asm'] = asm;



if (memoryInitializer) {
  if (typeof Module['locateFile'] === 'function') {
    memoryInitializer = Module['locateFile'](memoryInitializer);
  } else if (Module['memoryInitializerPrefixURL']) {
    memoryInitializer = Module['memoryInitializerPrefixURL'] + memoryInitializer;
  }
  if (ENVIRONMENT_IS_NODE || ENVIRONMENT_IS_SHELL) {
    var data = Module['readBinary'](memoryInitializer);
    HEAPU8.set(data, Runtime.GLOBAL_BASE);
  } else {
    addRunDependency('memory initializer');
    var applyMemoryInitializer = function(data) {
      if (data.byteLength) data = new Uint8Array(data);
      for (var i = 0; i < data.length; i++) {
        assert(HEAPU8[Runtime.GLOBAL_BASE + i] === 0, "area for memory initializer should not have been touched before it's loaded");
      }
      HEAPU8.set(data, Runtime.GLOBAL_BASE);
      // Delete the typed array that contains the large blob of the memory initializer request response so that
      // we won't keep unnecessary memory lying around. However, keep the XHR object itself alive so that e.g.
      // its .status field can still be accessed later.
      if (Module['memoryInitializerRequest']) delete Module['memoryInitializerRequest'].response;
      removeRunDependency('memory initializer');
    }
    function doBrowserLoad() {
      Module['readAsync'](memoryInitializer, applyMemoryInitializer, function() {
        throw 'could not load memory initializer ' + memoryInitializer;
      });
    }
    if (Module['memoryInitializerRequest']) {
      // a network request has already been created, just use that
      function useRequest() {
        var request = Module['memoryInitializerRequest'];
        if (request.status !== 200 && request.status !== 0) {
          // If you see this warning, the issue may be that you are using locateFile or memoryInitializerPrefixURL, and defining them in JS. That
          // means that the HTML file doesn't know about them, and when it tries to create the mem init request early, does it to the wrong place.
          // Look in your browser's devtools network console to see what's going on.
          console.warn('a problem seems to have happened with Module.memoryInitializerRequest, status: ' + request.status + ', retrying ' + memoryInitializer);
          doBrowserLoad();
          return;
        }
        applyMemoryInitializer(request.response);
      }
      if (Module['memoryInitializerRequest'].response) {
        setTimeout(useRequest, 0); // it's already here; but, apply it asynchronously
      } else {
        Module['memoryInitializerRequest'].addEventListener('load', useRequest); // wait for it
      }
    } else {
      // fetch it from the network ourselves
      doBrowserLoad();
    }
  }
}



/**
 * @constructor
 * @extends {Error}
 */
function ExitStatus(status) {
  this.name = "ExitStatus";
  this.message = "Program terminated with exit(" + status + ")";
  this.status = status;
};
ExitStatus.prototype = new Error();
ExitStatus.prototype.constructor = ExitStatus;

var initialStackTop;
var preloadStartTime = null;
var calledMain = false;

dependenciesFulfilled = function runCaller() {
  // If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false)
  if (!Module['calledRun']) run();
  if (!Module['calledRun']) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled
}

Module['callMain'] = Module.callMain = function callMain(args) {
  assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on __ATMAIN__)');
  assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remain to be called');

  args = args || [];

  ensureInitRuntime();

  var argc = args.length+1;
  function pad() {
    for (var i = 0; i < 4-1; i++) {
      argv.push(0);
    }
  }
  var argv = [allocate(intArrayFromString(Module['thisProgram']), 'i8', ALLOC_NORMAL) ];
  pad();
  for (var i = 0; i < argc-1; i = i + 1) {
    argv.push(allocate(intArrayFromString(args[i]), 'i8', ALLOC_NORMAL));
    pad();
  }
  argv.push(0);
  argv = allocate(argv, 'i32', ALLOC_NORMAL);


  try {

    var ret = Module['_main'](argc, argv, 0);


    // if we're not running an evented main loop, it's time to exit
    exit(ret, /* implicit = */ true);
  }
  catch(e) {
    if (e instanceof ExitStatus) {
      // exit() throws this once it's done to make sure execution
      // has been stopped completely
      return;
    } else if (e == 'SimulateInfiniteLoop') {
      // running an evented main loop, don't immediately exit
      Module['noExitRuntime'] = true;
      return;
    } else {
      var toLog = e;
      if (e && typeof e === 'object' && e.stack) {
        toLog = [e, e.stack];
      }
      Module.printErr('exception thrown: ' + toLog);
      Module['quit'](1, e);
    }
  } finally {
    calledMain = true;
  }
}




/** @type {function(Array=)} */
function run(args) {
  args = args || Module['arguments'];

  if (preloadStartTime === null) preloadStartTime = Date.now();

  if (runDependencies > 0) {
    return;
  }

  writeStackCookie();

  preRun();

  if (runDependencies > 0) return; // a preRun added a dependency, run will be called later
  if (Module['calledRun']) return; // run may have just been called through dependencies being fulfilled just in this very frame

  function doRun() {
    if (Module['calledRun']) return; // run may have just been called while the async setStatus time below was happening
    Module['calledRun'] = true;

    if (ABORT) return;

    ensureInitRuntime();

    preMain();

    if (ENVIRONMENT_IS_WEB && preloadStartTime !== null) {
      Module.printErr('pre-main prep time: ' + (Date.now() - preloadStartTime) + ' ms');
    }

    if (Module['onRuntimeInitialized']) Module['onRuntimeInitialized']();

    if (Module['_main'] && shouldRunNow) Module['callMain'](args);

    postRun();
  }

  if (Module['setStatus']) {
    Module['setStatus']('Running...');
    setTimeout(function() {
      setTimeout(function() {
        Module['setStatus']('');
      }, 1);
      doRun();
    }, 1);
  } else {
    doRun();
  }
  checkStackCookie();
}
Module['run'] = Module.run = run;

function exit(status, implicit) {
  if (implicit && Module['noExitRuntime']) {
    Module.printErr('exit(' + status + ') implicitly called by end of main(), but noExitRuntime, so not exiting the runtime (you can use emscripten_force_exit, if you want to force a true shutdown)');
    return;
  }

  if (Module['noExitRuntime']) {
    Module.printErr('exit(' + status + ') called, but noExitRuntime, so halting execution but not exiting the runtime or preventing further async execution (you can use emscripten_force_exit, if you want to force a true shutdown)');
  } else {

    ABORT = true;
    EXITSTATUS = status;
    STACKTOP = initialStackTop;

    exitRuntime();

    if (Module['onExit']) Module['onExit'](status);
  }

  if (ENVIRONMENT_IS_NODE) {
    process['exit'](status);
  }
  Module['quit'](status, new ExitStatus(status));
}
Module['exit'] = Module.exit = exit;

var abortDecorators = [];

function abort(what) {
  if (what !== undefined) {
    Module.print(what);
    Module.printErr(what);
    what = JSON.stringify(what)
  } else {
    what = '';
  }

  ABORT = true;
  EXITSTATUS = 1;

  var extra = '';

  var output = 'abort(' + what + ') at ' + stackTrace() + extra;
  if (abortDecorators) {
    abortDecorators.forEach(function(decorator) {
      output = decorator(output, what);
    });
  }
  throw output;
}
Module['abort'] = Module.abort = abort;

// {{PRE_RUN_ADDITIONS}}

if (Module['preInit']) {
  if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];
  while (Module['preInit'].length > 0) {
    Module['preInit'].pop()();
  }
}

// shouldRunNow refers to calling main(), not run().
var shouldRunNow = true;
if (Module['noInitialRun']) {
  shouldRunNow = false;
}


run();

// {{POST_RUN_ADDITIONS}}





// {{MODULE_ADDITIONS}}





  return __ffmpegjs_return;
}

module["exports"] = __ffmpegjs;