{ "draw2d": [ { "type": "shape_designer.figure.ExtPolygon", "id": "6e834d54-6700-ad9b-ab50-0faefeaea483", "x": 7987.5, "y": 7980, "width": 25, "height": 40, "alpha": 1, "selectable": true, "draggable": true, "angle": 0, "userData": { "baseClass": "draw2d.SetFigure", "code": "/**\n * Generated Code for the Draw2D touch HTML5 lib.\n * File will be generated if you save the *.shape file.\n *\n * by 'Draw2D Shape Designer'\n *\n * Custom JS code to tweak the standard behaviour of the generated\n * shape. add your custom code and event handler here.\n *\n * Looks disconcerting - extending my own class. But this is a good method to\n * merge basic code and override them with custom methods.\n */\ntestShape = testShape.extend({\n\n init: function(attr, setter, getter){\n this._super(attr, setter, getter);\n\n this.attr({resizeable:false});\n this.installEditPolicy(new draw2d.policy.figure.AntSelectionFeedbackPolicy());\n },\n\n /**\n * Called by the simulator for every calculation\n * loop\n * @param {Object} context context where objects can store or handover global variables to other objects.\n * @required\n **/\n calculate:function( context)\n {\n var i1 = this.getInputPort(0);\n var i2 = this.getInputPort(1);\n var o1 = this.getOutputPort(0);\n \n o1.setValue( (i1.getValue() && !i2.getValue() ) || ( !i1.getValue() && i2.getValue() ));\n },\n\n\n /**\n * Called if the simulation mode is starting\n * @required\n **/\n onStart:function(context)\n {\n },\n\n /**\n * Called if the simulation mode is stopping\n * @required\n **/\n onStop:function(context)\n {\n },\n\n /**\n * Get the simulator a hint which kind of hardware the shapes requires or supports\n * This helps the simulator to bring up some dialogs and messages if any new hardware is connected/get lost\n * and your are running a circuit which needs this kind of hardware...\n **/\n getRequiredHardware: function(){\n return {\n raspi: false,\n arduino: false\n }\n }\n\n});", "markdown": "# XOR Gate\n\n## Description\n`XOR gate` (sometimes EOR, or EXOR and pronounced as Exclusive OR) is \na digital logic gate that gives a true (1 or HIGH) output when the \nnumber of true inputs is odd. An XOR gate implements an exclusive \nor; that is, a true output results if one, and only one, of the \ninputs to the gate is true. 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