-package net.mograsim.logic.core.components;
-
-import java.util.List;
-
-import net.mograsim.logic.core.timeline.Timeline;
-import net.mograsim.logic.core.wires.Wire;
-import net.mograsim.logic.core.wires.Wire.ReadEnd;
-import net.mograsim.logic.core.wires.Wire.ReadWriteEnd;
-
-/**
- * Models a multiplexer. Takes an arbitrary amount of input {@link Wire}s, one of which, as determined by select, is put through to the
- * output.
- *
- * @author Fabian Stemmler
- *
- */
-public class Demux extends BasicComponent
-{
- private final ReadEnd select, in;
- private final ReadWriteEnd[] outputs;
- private final int outputSize;
- private int selected = -1;
-
- /**
- * Output {@link Wire}s and in must be of uniform length
- *
- * @param in Must be of uniform length with all outputs.
- * @param select Indexes the output array to which the input is mapped. Must have enough bits to index all outputs.
- * @param outputs One of these outputs receives the input signal, depending on the select bits
- */
- public Demux(Timeline timeline, int processTime, ReadEnd in, ReadEnd select, ReadWriteEnd... outputs)
- {
- super(timeline, processTime);
- outputSize = in.length();
-
- this.in = in;
- this.outputs = outputs;
- for (int i = 0; i < this.outputs.length; i++)
- {
- if (outputs[i].length() != outputSize)
- throw new IllegalArgumentException("All DEMUX wire arrays must be of uniform length!");
- this.outputs[i] = outputs[i];
- }
-
- this.select = select;
- select.addObserver(this);
-
- int maxInputs = 1 << select.length();
- if (this.outputs.length > maxInputs)
- throw new IllegalArgumentException("There are more outputs (" + this.outputs.length + ") to the DEMUX than supported by "
- + select.length() + " select bits (" + maxInputs + ").");
- in.addObserver(this);
- }
-
- @Override
- public void compute()
- {
- int selectValue = select.hasNumericValue() ? (int) select.getUnsignedValue() : -1;
- if (selectValue >= outputs.length)
- selectValue = -1;
-
- if (selected != selectValue && selected != -1)
- outputs[selected].clearSignals();
-
- selected = selectValue;
-
- if (selectValue != -1)
- outputs[selectValue].feedSignals(in.getValues());
- }
-
- @Override
- public List<ReadEnd> getAllInputs()
- {
- return List.of(in, select);
- }
-
- @Override
- public List<ReadWriteEnd> getAllOutputs()
- {
- return List.of(outputs);
- }
-}
+package net.mograsim.logic.core.components;\r
+\r
+import java.util.List;\r
+\r
+import net.mograsim.logic.core.timeline.Timeline;\r
+import net.mograsim.logic.core.wires.Wire;\r
+import net.mograsim.logic.core.wires.Wire.ReadEnd;\r
+import net.mograsim.logic.core.wires.Wire.ReadWriteEnd;\r
+\r
+/**\r
+ * Models a multiplexer. Takes an arbitrary amount of input {@link Wire}s, one of which, as determined by select, is put through to the\r
+ * output.\r
+ * \r
+ * @author Fabian Stemmler\r
+ *\r
+ */\r
+public class Demux extends BasicComponent\r
+{\r
+ private final ReadEnd select, in;\r
+ private final ReadWriteEnd[] outputs;\r
+ private final int outputSize;\r
+ private int selected = -1;\r
+\r
+ /**\r
+ * Output {@link Wire}s and in must be of uniform length\r
+ * \r
+ * @param in Must be of uniform length with all outputs.\r
+ * @param select Indexes the output array to which the input is mapped. Must have enough bits to index all outputs.\r
+ * @param outputs One of these outputs receives the input signal, depending on the select bits\r
+ */\r
+ public Demux(Timeline timeline, int processTime, ReadEnd in, ReadEnd select, ReadWriteEnd... outputs)\r
+ {\r
+ super(timeline, processTime);\r
+ outputSize = in.length();\r
+\r
+ this.in = in;\r
+ this.outputs = outputs;\r
+ for (int i = 0; i < this.outputs.length; i++)\r
+ {\r
+ if (outputs[i].length() != outputSize)\r
+ throw new IllegalArgumentException("All DEMUX wire arrays must be of uniform length!");\r
+ this.outputs[i] = outputs[i];\r
+ }\r
+\r
+ this.select = select;\r
+ select.registerObserver(this);\r
+\r
+ int maxInputs = 1 << select.length();\r
+ if (this.outputs.length > maxInputs)\r
+ throw new IllegalArgumentException("There are more outputs (" + this.outputs.length + ") to the DEMUX than supported by "\r
+ + select.length() + " select bits (" + maxInputs + ").");\r
+ in.registerObserver(this);\r
+ }\r
+\r
+ @Override\r
+ public void compute()\r
+ {\r
+ int selectValue = select.hasNumericValue() ? (int) select.getUnsignedValue() : -1;\r
+ if (selectValue >= outputs.length)\r
+ selectValue = -1;\r
+\r
+ if (selected != selectValue && selected != -1)\r
+ outputs[selected].clearSignals();\r
+\r
+ selected = selectValue;\r
+\r
+ if (selectValue != -1)\r
+ outputs[selectValue].feedSignals(in.getValues());\r
+ }\r
+\r
+ @Override\r
+ public List<ReadEnd> getAllInputs()\r
+ {\r
+ return List.of(in, select);\r
+ }\r
+\r
+ @Override\r
+ public List<ReadWriteEnd> getAllOutputs()\r
+ {\r
+ return List.of(outputs);\r
+ }\r
+}\r
projects / Mograsim.git / blobdiff