{ "schema": "digital-logic-sim-web/1", "storageId": "sophisticated-alu", "name": "Sophisticated 4-bit ALU Lab", "createdAt": "2026-08-10T12:00:00.000Z", "updatedAt": "2026-08-10T12:00:00.000Z", "root": { "id": "root", "name": "Sophisticated 4-bit ALU Lab", "type": "custom", "kind": "custom", "size": { "x": 2600, "y": 900 }, "colour": "#202b3a", "nameLocation": "top", "inputPins": [], "outputPins": [], "instances": [ { "id": "input-a", "name": "IN-4", "position": { "x": -2580, "y": -240 }, "rotation": 0, "label": "A[3:0]", "internalData": {}, "linkedBusPairId": null, "outputPinColours": {} }, { "id": "input-b", "name": "IN-4", "position": { "x": -2580, "y": -120 }, "rotation": 0, "label": "B[3:0]", "internalData": {}, "linkedBusPairId": null, "outputPinColours": {} }, { "id": "input-cin", "name": "IN-1", "position": { "x": -2580, "y": 0 }, "rotation": 0, "label": "CIN", "internalData": {}, "linkedBusPairId": null, "outputPinColours": {} }, { "id": "input-op0", "name": "IN-1", "position": { "x": -2580, "y": 120 }, "rotation": 0, "label": "OP0", "internalData": {}, "linkedBusPairId": null, "outputPinColours": {} }, { "id": "input-op1", "name": "IN-1", "position": { "x": -2580, "y": 240 }, "rotation": 0, "label": "OP1", "internalData": {}, "linkedBusPairId": null, "outputPinColours": {} }, { "id": "alu", "name": "ALU 4-BIT", "position": { "x": 0, "y": 0 }, "rotation": 0, "label": "4-BIT DATAPATH", "internalData": {}, "linkedBusPairId": null, "outputPinColours": {} }, { "id": "output-result", "name": "OUT-4", "position": { "x": 2580, "y": -180 }, "rotation": 0, "label": "RESULT[3:0]", "internalData": {}, "linkedBusPairId": null, "outputPinColours": {} }, { "id": "output-carry", "name": "OUT-1", "position": { "x": 2580, "y": -60 }, "rotation": 0, "label": "CARRY", "internalData": {}, "linkedBusPairId": null, "outputPinColours": {} }, { "id": "output-zero", "name": "OUT-1", "position": { "x": 2580, "y": 60 }, "rotation": 0, "label": "ZERO", "internalData": {}, "linkedBusPairId": null, "outputPinColours": {} }, { "id": "output-overflow", "name": "OUT-1", "position": { "x": 2580, "y": 180 }, "rotation": 0, "label": "OVERFLOW", "internalData": {}, "linkedBusPairId": null, "outputPinColours": {} } ], "wires": [ { "id": "a", "source": { "owner": "input-a", "pin": "0" }, "target": { "owner": "alu", "pin": "a" }, "points": [], "colour": null }, { "id": "b", "source": { "owner": "input-b", "pin": "0" }, "target": { "owner": "alu", "pin": "b" }, "points": [], "colour": null }, { "id": "cin", "source": { "owner": "input-cin", "pin": "0" }, "target": { "owner": "alu", "pin": "cin" }, "points": [], "colour": null }, { "id": "op0", "source": { "owner": "input-op0", "pin": "0" }, "target": { "owner": "alu", "pin": "s0" }, "points": [], "colour": null }, { "id": "op1", "source": { "owner": "input-op1", "pin": "0" }, "target": { "owner": "alu", "pin": "s1" }, "points": [], "colour": null }, { "id": "result", "source": { "owner": "alu", "pin": "result" }, "target": { "owner": "output-result", "pin": "0" }, "points": [], "colour": null }, { "id": "carry", "source": { "owner": "alu", "pin": "carry" }, "target": { "owner": "output-carry", "pin": "0" }, "points": [], "colour": null }, { "id": "zero", "source": { "owner": "alu", "pin": "zero" }, "target": { "owner": "output-zero", "pin": "0" }, "points": [], "colour": null }, { "id": "overflow", "source": { "owner": "alu", "pin": "overflow" }, "target": { "owner": "output-overflow", "pin": "0" }, "points": [], "colour": null } ], "junctions": [], "displays": [], "annotations": [ { "id": "sophisticated-title", "type": "label", "text": "SOPHISTICATED 4-BIT ALU", "position": { "x": -230, "y": -1850 }, "width": 460, "height": 26, "fontSize": 14, "colour": "#f3d36b", "background": "#352e18" }, { "id": "sophisticated-help", "type": "text", "text": "A and B are 4-bit words. The ALU is four reusable 1-bit slices with a ripple carry chain.\n00 = AND 01 = OR 10 = XOR 11 = ADD\nFlags: CARRY = unsigned carry out; ZERO = result is 0; OVERFLOW = signed ADD overflow.", "position": { "x": -390, "y": -1780 }, "width": 780, "height": 120, "fontSize": 11, "colour": "#d7eaff", "background": "#2f3338" } ] }, "customChips": { "HALF ADDER": { "id": "chip-half-adder", "name": "HALF ADDER", "type": "custom", "kind": "custom", "size": { "x": 260, "y": 160 }, "colour": "#5c8d78", "nameLocation": "top", "inputPins": [ { "id": "a", "name": "A", "bits": 1, "direction": "input", "x": -260, "y": -60, "valueDisplay": "off", "colour": "gray" }, { "id": "b", "name": "B", "bits": 1, "direction": "input", "x": -260, "y": 60, "valueDisplay": "off", "colour": "gray" } ], "outputPins": [ { "id": "sum", "name": "SUM", "bits": 1, "direction": "output", "x": 260, "y": -60, "valueDisplay": "off", "colour": "green" }, { "id": "carry", "name": "CARRY", "bits": 1, "direction": "output", "x": 260, "y": 60, "valueDisplay": "off", "colour": "green" } ], "instances": [ { "id": "xor", "name": "XOR", "position": { "x": 0, "y": -60 }, "rotation": 0, "label": "SUM", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "and", "name": "AND", "position": { "x": 0, "y": 60 }, "rotation": 0, "label": "CARRY", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "interface-input-a", "name": "IN-1", "position": { "x": -160, "y": -60 }, "rotation": 0, "label": "A", "internalData": {}, "linkedBusPairId": null, "interfaceId": "a", "outputPinColours": {} }, { "id": "interface-input-b", "name": "IN-1", "position": { "x": -160, "y": 60 }, "rotation": 0, "label": "B", "internalData": {}, "linkedBusPairId": null, "interfaceId": "b", "outputPinColours": {} }, { "id": "interface-output-sum", "name": "OUT-1", "position": { "x": 160, "y": -60 }, "rotation": 0, "label": "SUM", "internalData": {}, "linkedBusPairId": null, "interfaceId": "sum", "outputPinColours": {} }, { "id": "interface-output-carry", "name": "OUT-1", "position": { "x": 160, "y": 60 }, "rotation": 0, "label": "CARRY", "internalData": {}, "linkedBusPairId": null, "interfaceId": "carry", "outputPinColours": {} } ], "wires": [ { "id": "a-xor", "source": { "owner": "interface-input-a", "pin": "0" }, "target": { "owner": "xor", "pin": "0" }, "points": [], "colour": null }, { "id": "b-xor", "source": { "owner": "interface-input-b", "pin": "0" }, "target": { "owner": "xor", "pin": "1" }, "points": [], "colour": null }, { "id": "a-and", "source": { "owner": "interface-input-a", "pin": "0" }, "target": { "owner": "and", "pin": "0" }, "points": [], "colour": null }, { "id": "b-and", "source": { "owner": "interface-input-b", "pin": "0" }, "target": { "owner": "and", "pin": "1" }, "points": [], "colour": null }, { "id": "xor-sum", "source": { "owner": "xor", "pin": "2" }, "target": { "owner": "interface-output-sum", "pin": "0" }, "points": [], "colour": null }, { "id": "and-carry", "source": { "owner": "and", "pin": "2" }, "target": { "owner": "interface-output-carry", "pin": "0" }, "points": [], "colour": null } ], "junctions": [], "displays": [], "annotations": [], "interfaceBindings": { "inputs": [ { "publicId": "a", "instanceId": "interface-input-a", "pinId": "0", "direction": "input" }, { "publicId": "b", "instanceId": "interface-input-b", "pinId": "0", "direction": "input" } ], "outputs": [ { "publicId": "sum", "instanceId": "interface-output-sum", "pinId": "0", "direction": "output" }, { "publicId": "carry", "instanceId": "interface-output-carry", "pinId": "0", "direction": "output" } ] }, "fit": { "version": 1, "bounds": { "x": -260, "y": -140, "w": 520, "h": 280 } } }, "FULL ADDER": { "id": "chip-full-adder", "name": "FULL ADDER", "type": "custom", "kind": "custom", "size": { "x": 420, "y": 260 }, "colour": "#5c8d78", "nameLocation": "top", "inputPins": [ { "id": "a", "name": "A", "bits": 1, "direction": "input", "x": -540, "y": -120, "valueDisplay": "off", "colour": "gray" }, { "id": "b", "name": "B", "bits": 1, "direction": "input", "x": -540, "y": 0, "valueDisplay": "off", "colour": "gray" }, { "id": "cin", "name": "CIN", "bits": 1, "direction": "input", "x": -540, "y": 120, "valueDisplay": "off", "colour": "gray" } ], "outputPins": [ { "id": "sum", "name": "SUM", "bits": 1, "direction": "output", "x": 540, "y": -60, "valueDisplay": "off", "colour": "green" }, { "id": "carry", "name": "CARRY", "bits": 1, "direction": "output", "x": 540, "y": 60, "valueDisplay": "off", "colour": "green" } ], "instances": [ { "id": "ha-ab", "name": "HALF ADDER", "position": { "x": -80, "y": -160 }, "rotation": 0, "label": "A + B", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "ha-cin", "name": "HALF ADDER", "position": { "x": -80, "y": 160 }, "rotation": 0, "label": "X + CIN", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "carry-or", "name": "OR", "position": { "x": 280, "y": 0 }, "rotation": 0, "label": "CARRY", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "interface-input-a", "name": "IN-1", "position": { "x": -440, "y": -120 }, "rotation": 0, "label": "A", "internalData": {}, "linkedBusPairId": null, "interfaceId": "a", "outputPinColours": {} }, { "id": "interface-input-b", "name": "IN-1", "position": { "x": -440, "y": 0 }, "rotation": 0, "label": "B", "internalData": {}, "linkedBusPairId": null, "interfaceId": "b", "outputPinColours": {} }, { "id": "interface-input-cin", "name": "IN-1", "position": { "x": -440, "y": 120 }, "rotation": 0, "label": "CIN", "internalData": {}, "linkedBusPairId": null, "interfaceId": "cin", "outputPinColours": {} }, { "id": "interface-output-sum", "name": "OUT-1", "position": { "x": 440, "y": -60 }, "rotation": 0, "label": "SUM", "internalData": {}, "linkedBusPairId": null, "interfaceId": "sum", "outputPinColours": {} }, { "id": "interface-output-carry", "name": "OUT-1", "position": { "x": 440, "y": 60 }, "rotation": 0, "label": "CARRY", "internalData": {}, "linkedBusPairId": null, "interfaceId": "carry", "outputPinColours": {} } ], "wires": [ { "id": "a-ha", "source": { "owner": "interface-input-a", "pin": "0" }, "target": { "owner": "ha-ab", "pin": "a" }, "points": [], "colour": null }, { "id": "b-ha", "source": { "owner": "interface-input-b", "pin": "0" }, "target": { "owner": "ha-ab", "pin": "b" }, "points": [], "colour": null }, { "id": "ha-sum", "source": { "owner": "ha-ab", "pin": "sum" }, "target": { "owner": "ha-cin", "pin": "a" }, "points": [], "colour": null }, { "id": "cin-ha", "source": { "owner": "interface-input-cin", "pin": "0" }, "target": { "owner": "ha-cin", "pin": "b" }, "points": [], "colour": null }, { "id": "ha-carry", "source": { "owner": "ha-ab", "pin": "carry" }, "target": { "owner": "carry-or", "pin": "0" }, "points": [], "colour": null }, { "id": "cin-carry", "source": { "owner": "ha-cin", "pin": "carry" }, "target": { "owner": "carry-or", "pin": "1" }, "points": [], "colour": null }, { "id": "full-sum", "source": { "owner": "ha-cin", "pin": "sum" }, "target": { "owner": "interface-output-sum", "pin": "0" }, "points": [], "colour": null }, { "id": "full-carry", "source": { "owner": "carry-or", "pin": "2" }, "target": { "owner": "interface-output-carry", "pin": "0" }, "points": [], "colour": null } ], "junctions": [], "displays": [], "annotations": [], "interfaceBindings": { "inputs": [ { "publicId": "a", "instanceId": "interface-input-a", "pinId": "0", "direction": "input" }, { "publicId": "b", "instanceId": "interface-input-b", "pinId": "0", "direction": "input" }, { "publicId": "cin", "instanceId": "interface-input-cin", "pinId": "0", "direction": "input" } ], "outputs": [ { "publicId": "sum", "instanceId": "interface-output-sum", "pinId": "0", "direction": "output" }, { "publicId": "carry", "instanceId": "interface-output-carry", "pinId": "0", "direction": "output" } ] }, "fit": { "version": 1, "bounds": { "x": -540, "y": -340, "w": 1080, "h": 680 } } }, "MUX 4:1": { "id": "chip-mux-4-1", "name": "MUX 4:1", "type": "custom", "kind": "custom", "size": { "x": 420, "y": 360 }, "colour": "#647488", "nameLocation": "top", "inputPins": [ { "id": "d0", "name": "D0", "bits": 1, "direction": "input", "x": -580, "y": -300, "valueDisplay": "off", "colour": "gray" }, { "id": "d1", "name": "D1", "bits": 1, "direction": "input", "x": -580, "y": -180, "valueDisplay": "off", "colour": "gray" }, { "id": "d2", "name": "D2", "bits": 1, "direction": "input", "x": -580, "y": -60, "valueDisplay": "off", "colour": "gray" }, { "id": "d3", "name": "D3", "bits": 1, "direction": "input", "x": -580, "y": 60, "valueDisplay": "off", "colour": "gray" }, { "id": "s0", "name": "S0", "bits": 1, "direction": "input", "x": -580, "y": 180, "valueDisplay": "off", "colour": "gray" }, { "id": "s1", "name": "S1", "bits": 1, "direction": "input", "x": -580, "y": 300, "valueDisplay": "off", "colour": "gray" } ], "outputPins": [ { "id": "out", "name": "OUT", "bits": 1, "direction": "output", "x": 580, "y": 0, "valueDisplay": "off", "colour": "green" } ], "instances": [ { "id": "not-s0", "name": "NOT", "position": { "x": -320, "y": -60 }, "rotation": 0, "label": "!S0", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "not-s1", "name": "NOT", "position": { "x": -320, "y": 60 }, "rotation": 0, "label": "!S1", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "d0-a", "name": "AND", "position": { "x": -160, "y": -180 }, "rotation": 0, "label": "D0 !S1", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "d0-b", "name": "AND", "position": { "x": 0, "y": -180 }, "rotation": 0, "label": "D0 !S1 !S0", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "d1-a", "name": "AND", "position": { "x": -160, "y": -60 }, "rotation": 0, "label": "D1 !S1", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "d1-b", "name": "AND", "position": { "x": 0, "y": -60 }, "rotation": 0, "label": "D1 !S1 S0", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "d2-a", "name": "AND", "position": { "x": -160, "y": 60 }, "rotation": 0, "label": "D2 S1", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "d2-b", "name": "AND", "position": { "x": 0, "y": 60 }, "rotation": 0, "label": "D2 S1 !S0", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "d3-a", "name": "AND", "position": { "x": -160, "y": 180 }, "rotation": 0, "label": "D3 S1", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "d3-b", "name": "AND", "position": { "x": 0, "y": 180 }, "rotation": 0, "label": "D3 S1 S0", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "or-01", "name": "OR", "position": { "x": 160, "y": -60 }, "rotation": 0, "label": "D0/D1", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "or-23", "name": "OR", "position": { "x": 160, "y": 60 }, "rotation": 0, "label": "D2/D3", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "or-out", "name": "OR", "position": { "x": 320, "y": 0 }, "rotation": 0, "label": "OUT", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "interface-input-d0", "name": "IN-1", "position": { "x": -480, "y": -300 }, "rotation": 0, "label": "D0", "internalData": {}, "linkedBusPairId": null, "interfaceId": "d0", "outputPinColours": {} }, { "id": "interface-input-d1", "name": "IN-1", "position": { "x": -480, "y": -180 }, "rotation": 0, "label": "D1", "internalData": {}, "linkedBusPairId": null, "interfaceId": "d1", "outputPinColours": {} }, { "id": "interface-input-d2", "name": "IN-1", "position": { "x": -480, "y": -60 }, "rotation": 0, "label": "D2", "internalData": {}, "linkedBusPairId": null, "interfaceId": "d2", "outputPinColours": {} }, { "id": "interface-input-d3", "name": "IN-1", "position": { "x": -480, "y": 60 }, "rotation": 0, "label": "D3", "internalData": {}, "linkedBusPairId": null, "interfaceId": "d3", "outputPinColours": {} }, { "id": "interface-input-s0", "name": "IN-1", "position": { "x": -480, "y": 180 }, "rotation": 0, "label": "S0", "internalData": {}, "linkedBusPairId": null, "interfaceId": "s0", "outputPinColours": {} }, { "id": "interface-input-s1", "name": "IN-1", "position": { "x": -480, "y": 300 }, "rotation": 0, "label": "S1", "internalData": {}, "linkedBusPairId": null, "interfaceId": "s1", "outputPinColours": {} }, { "id": "interface-output-out", "name": "OUT-1", "position": { "x": 480, "y": 0 }, "rotation": 0, "label": "OUT", "internalData": {}, "linkedBusPairId": null, "interfaceId": "out", "outputPinColours": {} } ], "wires": [ { "id": "s0-not", "source": { "owner": "interface-input-s0", "pin": "0" }, "target": { "owner": "not-s0", "pin": "0" }, "points": [], "colour": null }, { "id": "s1-not", "source": { "owner": "interface-input-s1", "pin": "0" }, "target": { "owner": "not-s1", "pin": "0" }, "points": [], "colour": null }, { "id": "d0-a", "source": { "owner": "interface-input-d0", "pin": "0" }, "target": { "owner": "d0-a", "pin": "0" }, "points": [], "colour": null }, { "id": "ns1-d0", "source": { "owner": "not-s1", "pin": "1" }, "target": { "owner": "d0-a", "pin": "1" }, "points": [], "colour": null }, { "id": "d0-b", "source": { "owner": "d0-a", "pin": "2" }, "target": { "owner": "d0-b", "pin": "0" }, "points": [], "colour": null }, { "id": "ns0-d0", "source": { "owner": "not-s0", "pin": "1" }, "target": { "owner": "d0-b", "pin": "1" }, "points": [], "colour": null }, { "id": "d1-a", "source": { "owner": "interface-input-d1", "pin": "0" }, "target": { "owner": "d1-a", "pin": "0" }, "points": [], "colour": null }, { "id": "ns1-d1", "source": { "owner": "not-s1", "pin": "1" }, "target": { "owner": "d1-a", "pin": "1" }, "points": [], "colour": null }, { "id": "d1-b", "source": { "owner": "d1-a", "pin": "2" }, "target": { "owner": "d1-b", "pin": "0" }, "points": [], "colour": null }, { "id": "s0-d1", "source": { "owner": "interface-input-s0", "pin": "0" }, "target": { "owner": "d1-b", "pin": "1" }, "points": [], "colour": null }, { "id": "d2-a", "source": { "owner": "interface-input-d2", "pin": "0" }, "target": { "owner": "d2-a", "pin": "0" }, "points": [], "colour": null }, { "id": "s1-d2", "source": { "owner": "interface-input-s1", "pin": "0" }, "target": { "owner": "d2-a", "pin": "1" }, "points": [], "colour": null }, { "id": "d2-b", "source": { "owner": "d2-a", "pin": "2" }, "target": { "owner": "d2-b", "pin": "0" }, "points": [], "colour": null }, { "id": "ns0-d2", "source": { "owner": "not-s0", "pin": "1" }, "target": { "owner": "d2-b", "pin": "1" }, "points": [], "colour": null }, { "id": "d3-a", "source": { "owner": "interface-input-d3", "pin": "0" }, "target": { "owner": "d3-a", "pin": "0" }, "points": [], "colour": null }, { "id": "s1-d3", "source": { "owner": "interface-input-s1", "pin": "0" }, "target": { "owner": "d3-a", "pin": "1" }, "points": [], "colour": null }, { "id": "d3-b", "source": { "owner": "d3-a", "pin": "2" }, "target": { "owner": "d3-b", "pin": "0" }, "points": [], "colour": null }, { "id": "s0-d3", "source": { "owner": "interface-input-s0", "pin": "0" }, "target": { "owner": "d3-b", "pin": "1" }, "points": [], "colour": null }, { "id": "d0-or", "source": { "owner": "d0-b", "pin": "2" }, "target": { "owner": "or-01", "pin": "0" }, "points": [], "colour": null }, { "id": "d1-or", "source": { "owner": "d1-b", "pin": "2" }, "target": { "owner": "or-01", "pin": "1" }, "points": [], "colour": null }, { "id": "d2-or", "source": { "owner": "d2-b", "pin": "2" }, "target": { "owner": "or-23", "pin": "0" }, "points": [], "colour": null }, { "id": "d3-or", "source": { "owner": "d3-b", "pin": "2" }, "target": { "owner": "or-23", "pin": "1" }, "points": [], "colour": null }, { "id": "or01-out", "source": { "owner": "or-01", "pin": "2" }, "target": { "owner": "or-out", "pin": "0" }, "points": [], "colour": null }, { "id": "or23-out", "source": { "owner": "or-23", "pin": "2" }, "target": { "owner": "or-out", "pin": "1" }, "points": [], "colour": null }, { "id": "mux-out", "source": { "owner": "or-out", "pin": "2" }, "target": { "owner": "interface-output-out", "pin": "0" }, "points": [], "colour": null } ], "junctions": [], "displays": [], "annotations": [], "interfaceBindings": { "inputs": [ { "publicId": "d0", "instanceId": "interface-input-d0", "pinId": "0", "direction": "input" }, { "publicId": "d1", "instanceId": "interface-input-d1", "pinId": "0", "direction": "input" }, { "publicId": "d2", "instanceId": "interface-input-d2", "pinId": "0", "direction": "input" }, { "publicId": "d3", "instanceId": "interface-input-d3", "pinId": "0", "direction": "input" }, { "publicId": "s0", "instanceId": "interface-input-s0", "pinId": "0", "direction": "input" }, { "publicId": "s1", "instanceId": "interface-input-s1", "pinId": "0", "direction": "input" } ], "outputs": [ { "publicId": "out", "instanceId": "interface-output-out", "pinId": "0", "direction": "output" } ] }, "fit": { "version": 1, "bounds": { "x": -580, "y": -380, "w": 1160, "h": 760 } } }, "ALU 1-BIT": { "id": "chip-alu-1-bit", "name": "ALU 1-BIT", "type": "custom", "kind": "custom", "size": { "x": 620, "y": 360 }, "colour": "#7358ad", "nameLocation": "top", "inputPins": [ { "id": "a", "name": "A", "bits": 1, "direction": "input", "x": -940, "y": -240, "valueDisplay": "off", "colour": "gray" }, { "id": "b", "name": "B", "bits": 1, "direction": "input", "x": -940, "y": -120, "valueDisplay": "off", "colour": "gray" }, { "id": "cin", "name": "CIN", "bits": 1, "direction": "input", "x": -940, "y": 0, "valueDisplay": "off", "colour": "gray" }, { "id": "s0", "name": "OP0", "bits": 1, "direction": "input", "x": -940, "y": 120, "valueDisplay": "off", "colour": "gray" }, { "id": "s1", "name": "OP1", "bits": 1, "direction": "input", "x": -940, "y": 240, "valueDisplay": "off", "colour": "gray" } ], "outputPins": [ { "id": "result", "name": "RESULT", "bits": 1, "direction": "output", "x": 940, "y": -60, "valueDisplay": "off", "colour": "green" }, { "id": "carry", "name": "CARRY", "bits": 1, "direction": "output", "x": 940, "y": 60, "valueDisplay": "off", "colour": "green" } ], "instances": [ { "id": "and", "name": "AND", "position": { "x": -680, "y": -120 }, "rotation": 0, "label": "AND", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "or", "name": "OR", "position": { "x": -680, "y": 0 }, "rotation": 0, "label": "OR", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "xor", "name": "XOR", "position": { "x": -680, "y": 120 }, "rotation": 0, "label": "XOR", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "adder", "name": "FULL ADDER", "position": { "x": 0, "y": -400 }, "rotation": 0, "label": "ADD", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "mux", "name": "MUX 4:1", "position": { "x": 0, "y": 360 }, "rotation": 0, "label": "SELECT", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "carry-op1", "name": "AND", "position": { "x": 680, "y": -60 }, "rotation": 0, "label": "CARRY & OP1", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "carry-op", "name": "AND", "position": { "x": 680, "y": 60 }, "rotation": 0, "label": "CARRY & ADD", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "interface-input-a", "name": "IN-1", "position": { "x": -840, "y": -240 }, "rotation": 0, "label": "A", "internalData": {}, "linkedBusPairId": null, "interfaceId": "a", "outputPinColours": {} }, { "id": "interface-input-b", "name": "IN-1", "position": { "x": -840, "y": -120 }, "rotation": 0, "label": "B", "internalData": {}, "linkedBusPairId": null, "interfaceId": "b", "outputPinColours": {} }, { "id": "interface-input-cin", "name": "IN-1", "position": { "x": -840, "y": 0 }, "rotation": 0, "label": "CIN", "internalData": {}, "linkedBusPairId": null, "interfaceId": "cin", "outputPinColours": {} }, { "id": "interface-input-s0", "name": "IN-1", "position": { "x": -840, "y": 120 }, "rotation": 0, "label": "OP0", "internalData": {}, "linkedBusPairId": null, "interfaceId": "s0", "outputPinColours": {} }, { "id": "interface-input-s1", "name": "IN-1", "position": { "x": -840, "y": 240 }, "rotation": 0, "label": "OP1", "internalData": {}, "linkedBusPairId": null, "interfaceId": "s1", "outputPinColours": {} }, { "id": "interface-output-result", "name": "OUT-1", "position": { "x": 840, "y": -60 }, "rotation": 0, "label": "RESULT", "internalData": {}, "linkedBusPairId": null, "interfaceId": "result", "outputPinColours": {} }, { "id": "interface-output-carry", "name": "OUT-1", "position": { "x": 840, "y": 60 }, "rotation": 0, "label": "CARRY", "internalData": {}, "linkedBusPairId": null, "interfaceId": "carry", "outputPinColours": {} } ], "wires": [ { "id": "a-and", "source": { "owner": "interface-input-a", "pin": "0" }, "target": { "owner": "and", "pin": "0" }, "points": [], "colour": null }, { "id": "b-and", "source": { "owner": "interface-input-b", "pin": "0" }, "target": { "owner": "and", "pin": "1" }, "points": [], "colour": null }, { "id": "a-or", "source": { "owner": "interface-input-a", "pin": "0" }, "target": { "owner": "or", "pin": "0" }, "points": [], "colour": null }, { "id": "b-or", "source": { "owner": "interface-input-b", "pin": "0" }, "target": { "owner": "or", "pin": "1" }, "points": [], "colour": null }, { "id": "a-xor", "source": { "owner": "interface-input-a", "pin": "0" }, "target": { "owner": "xor", "pin": "0" }, "points": [], "colour": null }, { "id": "b-xor", "source": { "owner": "interface-input-b", "pin": "0" }, "target": { "owner": "xor", "pin": "1" }, "points": [], "colour": null }, { "id": "a-adder", "source": { "owner": "interface-input-a", "pin": "0" }, "target": { "owner": "adder", "pin": "a" }, "points": [], "colour": null }, { "id": "b-adder", "source": { "owner": "interface-input-b", "pin": "0" }, "target": { "owner": "adder", "pin": "b" }, "points": [], "colour": null }, { "id": "cin-adder", "source": { "owner": "interface-input-cin", "pin": "0" }, "target": { "owner": "adder", "pin": "cin" }, "points": [], "colour": null }, { "id": "and-mux", "source": { "owner": "and", "pin": "2" }, "target": { "owner": "mux", "pin": "d0" }, "points": [], "colour": null }, { "id": "or-mux", "source": { "owner": "or", "pin": "2" }, "target": { "owner": "mux", "pin": "d1" }, "points": [], "colour": null }, { "id": "xor-mux", "source": { "owner": "xor", "pin": "2" }, "target": { "owner": "mux", "pin": "d2" }, "points": [], "colour": null }, { "id": "sum-mux", "source": { "owner": "adder", "pin": "sum" }, "target": { "owner": "mux", "pin": "d3" }, "points": [], "colour": null }, { "id": "s0-mux", "source": { "owner": "interface-input-s0", "pin": "0" }, "target": { "owner": "mux", "pin": "s0" }, "points": [], "colour": null }, { "id": "s1-mux", "source": { "owner": "interface-input-s1", "pin": "0" }, "target": { "owner": "mux", "pin": "s1" }, "points": [], "colour": null }, { "id": "mux-result", "source": { "owner": "mux", "pin": "out" }, "target": { "owner": "interface-output-result", "pin": "0" }, "points": [], "colour": null }, { "id": "adder-carry", "source": { "owner": "adder", "pin": "carry" }, "target": { "owner": "carry-op1", "pin": "0" }, "points": [], "colour": null }, { "id": "s1-carry", "source": { "owner": "interface-input-s1", "pin": "0" }, "target": { "owner": "carry-op1", "pin": "1" }, "points": [], "colour": null }, { "id": "carry-op1-out", "source": { "owner": "carry-op1", "pin": "2" }, "target": { "owner": "carry-op", "pin": "0" }, "points": [], "colour": null }, { "id": "s0-carry", "source": { "owner": "interface-input-s0", "pin": "0" }, "target": { "owner": "carry-op", "pin": "1" }, "points": [], "colour": null }, { "id": "carry-result", "source": { "owner": "carry-op", "pin": "2" }, "target": { "owner": "interface-output-carry", "pin": "0" }, "points": [], "colour": null } ], "junctions": [], "displays": [], "annotations": [], "interfaceBindings": { "inputs": [ { "publicId": "a", "instanceId": "interface-input-a", "pinId": "0", "direction": "input" }, { "publicId": "b", "instanceId": "interface-input-b", "pinId": "0", "direction": "input" }, { "publicId": "cin", "instanceId": "interface-input-cin", "pinId": "0", "direction": "input" }, { "publicId": "s0", "instanceId": "interface-input-s0", "pinId": "0", "direction": "input" }, { "publicId": "s1", "instanceId": "interface-input-s1", "pinId": "0", "direction": "input" } ], "outputs": [ { "publicId": "result", "instanceId": "interface-output-result", "pinId": "0", "direction": "output" }, { "publicId": "carry", "instanceId": "interface-output-carry", "pinId": "0", "direction": "output" } ] }, "fit": { "version": 1, "bounds": { "x": -940, "y": -780, "w": 1880, "h": 1560 } } }, "RIPPLE ADDER 4": { "id": "chip-ripple-adder-4", "name": "RIPPLE ADDER 4", "type": "custom", "kind": "custom", "size": { "x": 1120, "y": 520 }, "colour": "#5c8d78", "nameLocation": "top", "inputPins": [ { "id": "a", "name": "A[3:0]", "bits": 4, "direction": "input", "x": -1520, "y": -120, "valueDisplay": "off", "colour": "gray" }, { "id": "b", "name": "B[3:0]", "bits": 4, "direction": "input", "x": -1520, "y": 0, "valueDisplay": "off", "colour": "gray" }, { "id": "cin", "name": "CIN", "bits": 1, "direction": "input", "x": -1520, "y": 120, "valueDisplay": "off", "colour": "gray" } ], "outputPins": [ { "id": "sum", "name": "SUM[3:0]", "bits": 4, "direction": "output", "x": 1520, "y": -60, "valueDisplay": "off", "colour": "green" }, { "id": "carry", "name": "CARRY", "bits": 1, "direction": "output", "x": 1520, "y": 60, "valueDisplay": "off", "colour": "green" } ], "instances": [ { "id": "split-a", "name": "4-1BIT", "position": { "x": -1230, "y": -60 }, "rotation": 0, "label": "A bits", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "split-b", "name": "4-1BIT", "position": { "x": -1230, "y": 60 }, "rotation": 0, "label": "B bits", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "fa0", "name": "FULL ADDER", "position": { "x": -560, "y": -360 }, "rotation": 0, "label": "BIT 0", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "fa1", "name": "FULL ADDER", "position": { "x": -560, "y": 360 }, "rotation": 0, "label": "BIT 1", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "fa2", "name": "FULL ADDER", "position": { "x": 560, "y": -360 }, "rotation": 0, "label": "BIT 2", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "fa3", "name": "FULL ADDER", "position": { "x": 560, "y": 360 }, "rotation": 0, "label": "BIT 3", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "merge-sum", "name": "1-4BIT", "position": { "x": 1230, "y": 0 }, "rotation": 0, "label": "SUM", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "interface-input-a", "name": "IN-4", "position": { "x": -1420, "y": -120 }, "rotation": 0, "label": "A[3:0]", "internalData": {}, "linkedBusPairId": null, "interfaceId": "a", "outputPinColours": {} }, { "id": "interface-input-b", "name": "IN-4", "position": { "x": -1420, "y": 0 }, "rotation": 0, "label": "B[3:0]", "internalData": {}, "linkedBusPairId": null, "interfaceId": "b", "outputPinColours": {} }, { "id": "interface-input-cin", "name": "IN-1", "position": { "x": -1420, "y": 120 }, "rotation": 0, "label": "CIN", "internalData": {}, "linkedBusPairId": null, "interfaceId": "cin", "outputPinColours": {} }, { "id": "interface-output-sum", "name": "OUT-4", "position": { "x": 1420, "y": -60 }, "rotation": 0, "label": "SUM[3:0]", "internalData": {}, "linkedBusPairId": null, "interfaceId": "sum", "outputPinColours": {} }, { "id": "interface-output-carry", "name": "OUT-1", "position": { "x": 1420, "y": 60 }, "rotation": 0, "label": "CARRY", "internalData": {}, "linkedBusPairId": null, "interfaceId": "carry", "outputPinColours": {} } ], "wires": [ { "id": "a0", "source": { "owner": "split-a", "pin": "4" }, "target": { "owner": "fa0", "pin": "a" }, "points": [], "colour": null }, { "id": "a1", "source": { "owner": "split-a", "pin": "3" }, "target": { "owner": "fa1", "pin": "a" }, "points": [], "colour": null }, { "id": "a2", "source": { "owner": "split-a", "pin": "2" }, "target": { "owner": "fa2", "pin": "a" }, "points": [], "colour": null }, { "id": "a3", "source": { "owner": "split-a", "pin": "1" }, "target": { "owner": "fa3", "pin": "a" }, "points": [], "colour": null }, { "id": "b0", "source": { "owner": "split-b", "pin": "4" }, "target": { "owner": "fa0", "pin": "b" }, "points": [], "colour": null }, { "id": "b1", "source": { "owner": "split-b", "pin": "3" }, "target": { "owner": "fa1", "pin": "b" }, "points": [], "colour": null }, { "id": "b2", "source": { "owner": "split-b", "pin": "2" }, "target": { "owner": "fa2", "pin": "b" }, "points": [], "colour": null }, { "id": "b3", "source": { "owner": "split-b", "pin": "1" }, "target": { "owner": "fa3", "pin": "b" }, "points": [], "colour": null }, { "id": "cin0", "source": { "owner": "interface-input-cin", "pin": "0" }, "target": { "owner": "fa0", "pin": "cin" }, "points": [], "colour": null }, { "id": "carry0", "source": { "owner": "fa0", "pin": "carry" }, "target": { "owner": "fa1", "pin": "cin" }, "points": [], "colour": null }, { "id": "carry1", "source": { "owner": "fa1", "pin": "carry" }, "target": { "owner": "fa2", "pin": "cin" }, "points": [], "colour": null }, { "id": "carry2", "source": { "owner": "fa2", "pin": "carry" }, "target": { "owner": "fa3", "pin": "cin" }, "points": [], "colour": null }, { "id": "carry-out", "source": { "owner": "fa3", "pin": "carry" }, "target": { "owner": "interface-output-carry", "pin": "0" }, "points": [], "colour": null }, { "id": "sum0", "source": { "owner": "fa0", "pin": "sum" }, "target": { "owner": "merge-sum", "pin": "0" }, "points": [], "colour": null }, { "id": "sum1", "source": { "owner": "fa1", "pin": "sum" }, "target": { "owner": "merge-sum", "pin": "1" }, "points": [], "colour": null }, { "id": "sum2", "source": { "owner": "fa2", "pin": "sum" }, "target": { "owner": "merge-sum", "pin": "2" }, "points": [], "colour": null }, { "id": "sum3", "source": { "owner": "fa3", "pin": "sum" }, "target": { "owner": "merge-sum", "pin": "3" }, "points": [], "colour": null }, { "id": "sum-out", "source": { "owner": "merge-sum", "pin": "4" }, "target": { "owner": "interface-output-sum", "pin": "0" }, "points": [], "colour": null }, { "id": "root-a", "source": { "owner": "interface-input-a", "pin": "0" }, "target": { "owner": "split-a", "pin": "0" }, "points": [], "colour": null }, { "id": "root-b", "source": { "owner": "interface-input-b", "pin": "0" }, "target": { "owner": "split-b", "pin": "0" }, "points": [], "colour": null } ], "junctions": [], "displays": [], "annotations": [], "interfaceBindings": { "inputs": [ { "publicId": "a", "instanceId": "interface-input-a", "pinId": "0", "direction": "input" }, { "publicId": "b", "instanceId": "interface-input-b", "pinId": "0", "direction": "input" }, { "publicId": "cin", "instanceId": "interface-input-cin", "pinId": "0", "direction": "input" } ], "outputs": [ { "publicId": "sum", "instanceId": "interface-output-sum", "pinId": "0", "direction": "output" }, { "publicId": "carry", "instanceId": "interface-output-carry", "pinId": "0", "direction": "output" } ] }, "fit": { "version": 1, "bounds": { "x": -1520, "y": -740, "w": 3040, "h": 1480 } } }, "ALU 4-BIT": { "id": "chip-alu-4-bit", "name": "ALU 4-BIT", "type": "custom", "kind": "custom", "size": { "x": 1900, "y": 700 }, "colour": "#7358ad", "nameLocation": "top", "inputPins": [ { "id": "a", "name": "A[3:0]", "bits": 4, "direction": "input", "x": -2480, "y": -240, "valueDisplay": "off", "colour": "gray" }, { "id": "b", "name": "B[3:0]", "bits": 4, "direction": "input", "x": -2480, "y": -120, "valueDisplay": "off", "colour": "gray" }, { "id": "cin", "name": "CIN", "bits": 1, "direction": "input", "x": -2480, "y": 0, "valueDisplay": "off", "colour": "gray" }, { "id": "s0", "name": "OP0", "bits": 1, "direction": "input", "x": -2480, "y": 120, "valueDisplay": "off", "colour": "gray" }, { "id": "s1", "name": "OP1", "bits": 1, "direction": "input", "x": -2480, "y": 240, "valueDisplay": "off", "colour": "gray" } ], "outputPins": [ { "id": "result", "name": "RESULT[3:0]", "bits": 4, "direction": "output", "x": 2480, "y": -180, "valueDisplay": "off", "colour": "green" }, { "id": "carry", "name": "CARRY", "bits": 1, "direction": "output", "x": 2480, "y": -60, "valueDisplay": "off", "colour": "green" }, { "id": "zero", "name": "ZERO", "bits": 1, "direction": "output", "x": 2480, "y": 60, "valueDisplay": "off", "colour": "green" }, { "id": "overflow", "name": "OVERFLOW", "bits": 1, "direction": "output", "x": 2480, "y": 180, "valueDisplay": "off", "colour": "green" } ], "instances": [ { "id": "split-a", "name": "4-1BIT", "position": { "x": -2190, "y": -60 }, "rotation": 0, "label": "A bits", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "split-b", "name": "4-1BIT", "position": { "x": -2190, "y": 60 }, "rotation": 0, "label": "B bits", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "alu0", "name": "ALU 1-BIT", "position": { "x": -1120, "y": -800 }, "rotation": 0, "label": "BIT 0 (LSB)", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "alu1", "name": "ALU 1-BIT", "position": { "x": -1120, "y": 800 }, "rotation": 0, "label": "BIT 1", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "alu2", "name": "ALU 1-BIT", "position": { "x": 800, "y": -800 }, "rotation": 0, "label": "BIT 2", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "alu3", "name": "ALU 1-BIT", "position": { "x": 800, "y": 800 }, "rotation": 0, "label": "BIT 3 (MSB)", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "merge-result", "name": "1-4BIT", "position": { "x": 1870, "y": -120 }, "rotation": 0, "label": "RESULT", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "or01", "name": "OR", "position": { "x": 1870, "y": 0 }, "rotation": 0, "label": "RESULT 0/1", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "or23", "name": "OR", "position": { "x": 1870, "y": 120 }, "rotation": 0, "label": "RESULT 2/3", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "or-all", "name": "OR", "position": { "x": 2060, "y": -60 }, "rotation": 0, "label": "ANY RESULT", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "not-zero", "name": "NOT", "position": { "x": 2060, "y": 60 }, "rotation": 0, "label": "ZERO", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "xor-overflow", "name": "XOR", "position": { "x": 2220, "y": -120 }, "rotation": 0, "label": "CARRY IN/OUT", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "overflow-op1", "name": "AND", "position": { "x": 2220, "y": 0 }, "rotation": 0, "label": "OVERFLOW & OP1", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "overflow-op", "name": "AND", "position": { "x": 2220, "y": 120 }, "rotation": 0, "label": "OVERFLOW & ADD", "internalData": {}, "linkedBusPairId": null, "interfaceId": null, "outputPinColours": {} }, { "id": "interface-input-a", "name": "IN-4", "position": { "x": -2380, "y": -240 }, "rotation": 0, "label": "A[3:0]", "internalData": {}, "linkedBusPairId": null, "interfaceId": "a", "outputPinColours": {} }, { "id": "interface-input-b", "name": "IN-4", "position": { "x": -2380, "y": -120 }, "rotation": 0, "label": "B[3:0]", "internalData": {}, "linkedBusPairId": null, "interfaceId": "b", "outputPinColours": {} }, { "id": "interface-input-cin", "name": "IN-1", "position": { "x": -2380, "y": 0 }, "rotation": 0, "label": "CIN", "internalData": {}, "linkedBusPairId": null, "interfaceId": "cin", "outputPinColours": {} }, { "id": "interface-input-s0", "name": "IN-1", "position": { "x": -2380, "y": 120 }, "rotation": 0, "label": "OP0", "internalData": {}, "linkedBusPairId": null, "interfaceId": "s0", "outputPinColours": {} }, { "id": "interface-input-s1", "name": "IN-1", "position": { "x": -2380, "y": 240 }, "rotation": 0, "label": "OP1", "internalData": {}, "linkedBusPairId": null, "interfaceId": "s1", "outputPinColours": {} }, { "id": "interface-output-result", "name": "OUT-4", "position": { "x": 2380, "y": -180 }, "rotation": 0, "label": "RESULT[3:0]", "internalData": {}, "linkedBusPairId": null, "interfaceId": "result", "outputPinColours": {} }, { "id": "interface-output-carry", "name": "OUT-1", "position": { "x": 2380, "y": -60 }, "rotation": 0, "label": "CARRY", "internalData": {}, "linkedBusPairId": null, "interfaceId": "carry", "outputPinColours": {} }, { "id": "interface-output-zero", "name": "OUT-1", "position": { "x": 2380, "y": 60 }, "rotation": 0, "label": "ZERO", "internalData": {}, "linkedBusPairId": null, "interfaceId": "zero", "outputPinColours": {} }, { "id": "interface-output-overflow", "name": "OUT-1", "position": { "x": 2380, "y": 180 }, "rotation": 0, "label": "OVERFLOW", "internalData": {}, "linkedBusPairId": null, "interfaceId": "overflow", "outputPinColours": {} } ], "wires": [ { "id": "root-a", "source": { "owner": "interface-input-a", "pin": "0" }, "target": { "owner": "split-a", "pin": "0" }, "points": [], "colour": null }, { "id": "root-b", "source": { "owner": "interface-input-b", "pin": "0" }, "target": { "owner": "split-b", "pin": "0" }, "points": [], "colour": null }, { "id": "a0", "source": { "owner": "split-a", "pin": "4" }, "target": { "owner": "alu0", "pin": "a" }, "points": [], "colour": null }, { "id": "a1", "source": { "owner": "split-a", "pin": "3" }, "target": { "owner": "alu1", "pin": "a" }, "points": [], "colour": null }, { "id": "a2", "source": { "owner": "split-a", "pin": "2" }, "target": { "owner": "alu2", "pin": "a" }, "points": [], "colour": null }, { "id": "a3", "source": { "owner": "split-a", "pin": "1" }, "target": { "owner": "alu3", "pin": "a" }, "points": [], "colour": null }, { "id": "b0", "source": { "owner": "split-b", "pin": "4" }, "target": { "owner": "alu0", "pin": "b" }, "points": [], "colour": null }, { "id": "b1", "source": { "owner": "split-b", "pin": "3" }, "target": { "owner": "alu1", "pin": "b" }, "points": [], "colour": null }, { "id": "b2", "source": { "owner": "split-b", "pin": "2" }, "target": { "owner": "alu2", "pin": "b" }, "points": [], "colour": null }, { "id": "b3", "source": { "owner": "split-b", "pin": "1" }, "target": { "owner": "alu3", "pin": "b" }, "points": [], "colour": null }, { "id": "cin0", "source": { "owner": "interface-input-cin", "pin": "0" }, "target": { "owner": "alu0", "pin": "cin" }, "points": [], "colour": null }, { "id": "carry0", "source": { "owner": "alu0", "pin": "carry" }, "target": { "owner": "alu1", "pin": "cin" }, "points": [], "colour": null }, { "id": "carry1", "source": { "owner": "alu1", "pin": "carry" }, "target": { "owner": "alu2", "pin": "cin" }, "points": [], "colour": null }, { "id": "carry2", "source": { "owner": "alu2", "pin": "carry" }, "target": { "owner": "alu3", "pin": "cin" }, "points": [], "colour": null }, { "id": "op0-0", "source": { "owner": "interface-input-s0", "pin": "0" }, "target": { "owner": "alu0", "pin": "s0" }, "points": [], "colour": null }, { "id": "op0-1", "source": { "owner": "interface-input-s0", "pin": "0" }, "target": { "owner": "alu1", "pin": "s0" }, "points": [], "colour": null }, { "id": "op0-2", "source": { "owner": "interface-input-s0", "pin": "0" }, "target": { "owner": "alu2", "pin": "s0" }, "points": [], "colour": null }, { "id": "op0-3", "source": { "owner": "interface-input-s0", "pin": "0" }, "target": { "owner": "alu3", "pin": "s0" }, "points": [], "colour": null }, { "id": "op1-0", "source": { "owner": "interface-input-s1", "pin": "0" }, "target": { "owner": "alu0", "pin": "s1" }, "points": [], "colour": null }, { "id": "op1-1", "source": { "owner": "interface-input-s1", "pin": "0" }, "target": { "owner": "alu1", "pin": "s1" }, "points": [], "colour": null }, { "id": "op1-2", "source": { "owner": "interface-input-s1", "pin": "0" }, "target": { "owner": "alu2", "pin": "s1" }, "points": [], "colour": null }, { "id": "op1-3", "source": { "owner": "interface-input-s1", "pin": "0" }, "target": { "owner": "alu3", "pin": "s1" }, "points": [], "colour": null }, { "id": "sum0", "source": { "owner": "alu0", "pin": "result" }, "target": { "owner": "merge-result", "pin": "0" }, "points": [], "colour": null }, { "id": "sum1", "source": { "owner": "alu1", "pin": "result" }, "target": { "owner": "merge-result", "pin": "1" }, "points": [], "colour": null }, { "id": "sum2", "source": { "owner": "alu2", "pin": "result" }, "target": { "owner": "merge-result", "pin": "2" }, "points": [], "colour": null }, { "id": "sum3", "source": { "owner": "alu3", "pin": "result" }, "target": { "owner": "merge-result", "pin": "3" }, "points": [], "colour": null }, { "id": "result-out", "source": { "owner": "merge-result", "pin": "4" }, "target": { "owner": "interface-output-result", "pin": "0" }, "points": [], "colour": null }, { "id": "bit0-or", "source": { "owner": "alu0", "pin": "result" }, "target": { "owner": "or01", "pin": "0" }, "points": [], "colour": null }, { "id": "bit1-or", "source": { "owner": "alu1", "pin": "result" }, "target": { "owner": "or01", "pin": "1" }, "points": [], "colour": null }, { "id": "bit2-or", "source": { "owner": "alu2", "pin": "result" }, "target": { "owner": "or23", "pin": "0" }, "points": [], "colour": null }, { "id": "bit3-or", "source": { "owner": "alu3", "pin": "result" }, "target": { "owner": "or23", "pin": "1" }, "points": [], "colour": null }, { "id": "or01-all", "source": { "owner": "or01", "pin": "2" }, "target": { "owner": "or-all", "pin": "0" }, "points": [], "colour": null }, { "id": "or23-all", "source": { "owner": "or23", "pin": "2" }, "target": { "owner": "or-all", "pin": "1" }, "points": [], "colour": null }, { "id": "any-not", "source": { "owner": "or-all", "pin": "2" }, "target": { "owner": "not-zero", "pin": "0" }, "points": [], "colour": null }, { "id": "zero-out", "source": { "owner": "not-zero", "pin": "1" }, "target": { "owner": "interface-output-zero", "pin": "0" }, "points": [], "colour": null }, { "id": "carry3-out", "source": { "owner": "alu3", "pin": "carry" }, "target": { "owner": "interface-output-carry", "pin": "0" }, "points": [], "colour": null }, { "id": "carry-in-msb", "source": { "owner": "alu2", "pin": "carry" }, "target": { "owner": "xor-overflow", "pin": "0" }, "points": [], "colour": null }, { "id": "carry-out-msb", "source": { "owner": "alu3", "pin": "carry" }, "target": { "owner": "xor-overflow", "pin": "1" }, "points": [], "colour": null }, { "id": "overflow-op1-in", "source": { "owner": "xor-overflow", "pin": "2" }, "target": { "owner": "overflow-op1", "pin": "0" }, "points": [], "colour": null }, { "id": "s1-overflow", "source": { "owner": "interface-input-s1", "pin": "0" }, "target": { "owner": "overflow-op1", "pin": "1" }, "points": [], "colour": null }, { "id": "overflow-op1-out", "source": { "owner": "overflow-op1", "pin": "2" }, "target": { "owner": "overflow-op", "pin": "0" }, "points": [], "colour": null }, { "id": "s0-overflow", "source": { "owner": "interface-input-s0", "pin": "0" }, "target": { "owner": "overflow-op", "pin": "1" }, "points": [], "colour": null }, { "id": "overflow-out", "source": { "owner": "overflow-op", "pin": "2" }, "target": { "owner": "interface-output-overflow", "pin": "0" }, "points": [], "colour": null } ], "junctions": [], "displays": [], "annotations": [], "interfaceBindings": { "inputs": [ { "publicId": "a", "instanceId": "interface-input-a", "pinId": "0", "direction": "input" }, { "publicId": "b", "instanceId": "interface-input-b", "pinId": "0", "direction": "input" }, { "publicId": "cin", "instanceId": "interface-input-cin", "pinId": "0", "direction": "input" }, { "publicId": "s0", "instanceId": "interface-input-s0", "pinId": "0", "direction": "input" }, { "publicId": "s1", "instanceId": "interface-input-s1", "pinId": "0", "direction": "input" } ], "outputs": [ { "publicId": "result", "instanceId": "interface-output-result", "pinId": "0", "direction": "output" }, { "publicId": "carry", "instanceId": "interface-output-carry", "pinId": "0", "direction": "output" }, { "publicId": "zero", "instanceId": "interface-output-zero", "pinId": "0", "direction": "output" }, { "publicId": "overflow", "instanceId": "interface-output-overflow", "pinId": "0", "direction": "output" } ] }, "fit": { "version": 1, "bounds": { "x": -2480, "y": -1620, "w": 4960, "h": 3240 } } } }, "collections": [ { "name": "LOGIC", "chips": [ "AND", "OR", "NOT", "NAND", "NOR", "XOR", "XNOR", "BUFFER" ] }, { "name": "BASIC", "chips": [ "CLOCK", "PULSE", "KEY", "3-STATE BUFFER" ] }, { "name": "IN/OUT", "chips": [ "IN-1", "IN-4", "IN-8", "OUT-1", "OUT-4", "OUT-8" ] }, { "name": "MERGE/SPLIT", "chips": [ "1-4BIT", "1-8BIT", "4-8BIT", "4-1BIT", "8-4BIT", "8-1BIT" ] }, { "name": "BUS", "chips": [ "BUS-1", "BUS-4", "BUS-8" ] }, { "name": "DISPLAY", "chips": [ "7-SEGMENT", "DOT DISPLAY", "RGB DISPLAY", "LED" ] }, { "name": "MEMORY", "chips": [ "ROM 256x16", "dev.RAM-8" ] }, { "name": "AUDIO", "chips": [ "BUZZER" ] } ], "collectionOrder": [ "LOGIC", "BASIC", "IN/OUT", "MERGE/SPLIT", "BUS", "DISPLAY", "MEMORY", "AUDIO", "CUSTOM" ], "starred": [ "LOGIC", "IN-1", "OUT-1" ], "settings": { "snapping": true, "straightWires": false, "grid": true, "simulationPaused": true, "stepsPerSecond": 8, "stepsPerClock": 8 }, "inputValues": { "input-a": 0, "input-b": 0, "input-cin": 0, "input-op0": 0, "input-op1": 0 }, "keyValues": {} }