+++ /dev/null
-package era.mi.logic.components;
-
-import java.util.List;
-
-import era.mi.logic.timeline.Timeline;
-import era.mi.logic.types.BitVector;
-import era.mi.logic.wires.Wire;
-import era.mi.logic.wires.Wire.ReadEnd;
-import era.mi.logic.wires.Wire.ReadWriteEnd;
-import era.mi.logic.wires.WireObserver;
-
-public class Merger extends Component implements WireObserver
-{
- private ReadWriteEnd out;
- private ReadEnd[] inputs;
- private int[] beginningIndex;
-
- /**
- *
- * @param union The output of merging n {@link Wire}s into one. Must have length = a1.length() + a2.length() + ... + an.length().
- * @param inputs The inputs to be merged into the union
- */
- public Merger(Timeline timeline, ReadWriteEnd union, ReadEnd... inputs)
- {
- super(timeline);
- this.inputs = inputs;
- this.out = union;
- this.beginningIndex = new int[inputs.length];
-
- int length = 0;
- for (int i = 0; i < inputs.length; i++)
- {
- beginningIndex[i] = length;
- length += inputs[i].length();
- inputs[i].addObserver(this);
- }
-
- if (length != union.length())
- throw new IllegalArgumentException(
- "The output of merging n WireArrays into one must have length = a1.length() + a2.length() + ... + an.length().");
- }
-
- public ReadEnd getInput(int index)
- {
- return inputs[index];
- }
-
- public ReadEnd getUnion()
- {
- return out;
- }
-
- @Override
- public void update(ReadEnd initiator, BitVector oldValues)
- {
- int index = find(initiator);
- int beginning = beginningIndex[index];
- out.feedSignals(beginning, inputs[index].getValues());
- }
-
- private int find(ReadEnd r)
- {
- for (int i = 0; i < inputs.length; i++)
- if (inputs[i] == r)
- return i;
- return -1;
- }
-
- public ReadEnd[] getInputs()
- {
- return inputs.clone();
- }
-
- @Override
- public List<ReadEnd> getAllInputs()
- {
- return List.of(inputs);
- }
-
- @Override
- public List<ReadWriteEnd> getAllOutputs()
- {
- return List.of(out);
- }
-}