1 package era.mi.logic.components;
3 import java.util.Arrays;
4 import java.util.Collections;
7 import era.mi.logic.Bit;
8 import era.mi.logic.wires.WireArray;
9 import era.mi.logic.wires.WireArray.WireArrayInput;
11 public class TriStateBuffer extends BasicComponent {
15 public TriStateBuffer(int processTime, WireArray in, WireArray out, WireArray enable) {
17 if (in.length != out.length)
18 throw new IllegalArgumentException(
19 "Tri-state output must have the same amount of bits as the input. Input: " + in.length + " Output: " + out.length);
20 if (enable.length != 1)
21 throw new IllegalArgumentException("Tri-state enable must have exactly one bit, not " + enable.length + ".");
25 enable.addObserver(this);
26 outI = out.createInput();
30 protected void compute() {
31 if (enable.getValue() == Bit.ONE)
32 outI.feedSignals(in.getValues());
38 public List<WireArray> getAllInputs() {
39 return Collections.unmodifiableList(Arrays.asList(in, enable));
43 public List<WireArray> getAllOutputs() {
44 return Collections.unmodifiableList(Arrays.asList(outI.owner));