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