1 package era.mi.logic.components.gates;
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3 import java.util.Arrays;
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4 import java.util.Collections;
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5 import java.util.List;
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7 import era.mi.logic.Bit;
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8 import era.mi.logic.components.BasicComponent;
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9 import era.mi.logic.wires.WireArray;
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10 import era.mi.logic.wires.WireArray.WireArrayInput;
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12 public abstract class MultiInputGate extends BasicComponent {
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13 protected WireArray[] in;
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14 protected WireArray out;
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15 protected WireArrayInput outI;
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16 protected final int length;
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17 protected Operation op;
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19 protected MultiInputGate(int processTime, Operation op, WireArray out, WireArray... in) {
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22 length = out.length;
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23 this.in = in.clone();
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25 throw new IllegalArgumentException(String.format("Cannot create gate with %d wires.", in.length));
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26 for (WireArray w : in) {
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27 if (w.length != length)
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28 throw new IllegalArgumentException("All wires connected to the gate must be of uniform length.");
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29 w.addObserver(this);
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32 outI = out.createInput();
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36 public List<WireArray> getAllInputs() {
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37 return Collections.unmodifiableList(Arrays.asList(in));
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41 public List<WireArray> getAllOutputs() {
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42 return Collections.unmodifiableList(Arrays.asList(out));
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45 protected void compute() {
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46 Bit[] result = in[0].getValues();
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47 for (int i = 1; i < in.length; i++)
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48 result = op.execute(result, in[i].getValues());
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49 outI.feedSignals(result);
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52 protected interface Operation {
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53 public Bit[] execute(Bit[] a, Bit[] b);
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