arcanis

var startEmulator = function (rom) {

    var engine = Virtjs.create(Virtjs.engine.GameBoy, {

        devices : {
            screen : new Virtjs.screen.WebGL(),
            input : new Virtjs.input.Keyboard({ map : map }),
            timer : new Virtjs.timer.RAFrame(),
            data : new Virtjs.data.LocalStorage()
        },

arcanis

barDemo.selectAll("rect").
  data(data).
  enter().
  append("svg:rect").
  attr("x", function(datum, index) { return x(index); }).
  attr("y", function(datum) { return height - y(datum.books); }).
  attr("height", function(datum) { return y(datum.books); }).
  attr("width", barWidth).
  attr("fill", "#2d578b");