-package net.mograsim.logic.core.components;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-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 Mux extends BasicComponent
-{
- private ReadEnd select;
- private ReadWriteEnd out;
- private ReadEnd[] inputs;
- private final int outputSize;
-
- /**
- * Input {@link Wire}s and out must be of uniform length
- *
- * @param out Must be of uniform length with all inputs.
- * @param select Indexes the input array which is to be mapped to the output. Must have enough bits to index all inputs.
- * @param inputs One of these inputs is mapped to the output, depending on the select bits
- */
- public Mux(Timeline timeline, int processTime, ReadWriteEnd out, ReadEnd select, ReadEnd... inputs)
- {
- super(timeline, processTime);
- outputSize = out.length();
-
- this.inputs = inputs.clone();
- for (int i = 0; i < this.inputs.length; i++)
- {
- if (inputs[i].length() != outputSize)
- throw new IllegalArgumentException("All MUX wire arrays must be of uniform length!");
- inputs[i].registerObserver(this);
- }
-
- this.select = select;
- select.registerObserver(this);
-
- int maxInputs = 1 << select.length();
- if (this.inputs.length > maxInputs)
- throw new IllegalArgumentException("There are more inputs (" + this.inputs.length + ") to the MUX than supported by "
- + select.length() + " select bits (" + maxInputs + ").");
-
- this.out = out;
- }
-
- public ReadEnd getOut()
- {
- return out;
- }
-
- public ReadEnd getSelect()
- {
- return select;
- }
-
- @Override
- public void compute()
- {
- int selectValue;
- if (!select.hasNumericValue() || (selectValue = (int) select.getUnsignedValue()) >= inputs.length)
- {
- out.clearSignals();
- return;
- }
-
- ReadEnd active = inputs[selectValue];
- out.feedSignals(active.getValues());
- }
-
- @Override
- public List<ReadEnd> getAllInputs()
- {
- ArrayList<ReadEnd> wires = new ArrayList<ReadEnd>(Arrays.asList(inputs));
- wires.add(select);
- return Collections.unmodifiableList(wires);
- }
-
- @Override
- public List<ReadWriteEnd> getAllOutputs()
- {
- return List.of(out);
- }
-}
+package net.mograsim.logic.core.components;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Arrays;\r
+import java.util.Collections;\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 Mux extends BasicComponent\r
+{\r
+ private ReadEnd select;\r
+ private ReadWriteEnd out;\r
+ private ReadEnd[] inputs;\r
+ private final int outputSize;\r
+\r
+ /**\r
+ * Input {@link Wire}s and out must be of uniform length\r
+ * \r
+ * @param out Must be of uniform length with all inputs.\r
+ * @param select Indexes the input array which is to be mapped to the output. Must have enough bits to index all inputs.\r
+ * @param inputs One of these inputs is mapped to the output, depending on the select bits\r
+ */\r
+ public Mux(Timeline timeline, int processTime, ReadWriteEnd out, ReadEnd select, ReadEnd... inputs)\r
+ {\r
+ super(timeline, processTime);\r
+ outputSize = out.length();\r
+\r
+ this.inputs = inputs.clone();\r
+ for (int i = 0; i < this.inputs.length; i++)\r
+ {\r
+ if (inputs[i].length() != outputSize)\r
+ throw new IllegalArgumentException("All MUX wire arrays must be of uniform length!");\r
+ inputs[i].registerObserver(this);\r
+ }\r
+\r
+ this.select = select;\r
+ select.registerObserver(this);\r
+\r
+ int maxInputs = 1 << select.length();\r
+ if (this.inputs.length > maxInputs)\r
+ throw new IllegalArgumentException("There are more inputs (" + this.inputs.length + ") to the MUX than supported by "\r
+ + select.length() + " select bits (" + maxInputs + ").");\r
+\r
+ this.out = out;\r
+ }\r
+\r
+ public ReadEnd getOut()\r
+ {\r
+ return out;\r
+ }\r
+\r
+ public ReadEnd getSelect()\r
+ {\r
+ return select;\r
+ }\r
+\r
+ @Override\r
+ public void compute()\r
+ {\r
+ int selectValue;\r
+ if (!select.hasNumericValue() || (selectValue = (int) select.getUnsignedValue()) >= inputs.length)\r
+ {\r
+ out.clearSignals();\r
+ return;\r
+ }\r
+\r
+ ReadEnd active = inputs[selectValue];\r
+ out.feedSignals(active.getValues());\r
+ }\r
+\r
+ @Override\r
+ public List<ReadEnd> getAllInputs()\r
+ {\r
+ ArrayList<ReadEnd> wires = new ArrayList<>(Arrays.asList(inputs));\r
+ wires.add(select);\r
+ return Collections.unmodifiableList(wires);\r
+ }\r
+\r
+ @Override\r
+ public List<ReadWriteEnd> getAllOutputs()\r
+ {\r
+ return List.of(out);\r
+ }\r
+}\r
-package net.mograsim.logic.core.timeline;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.PriorityQueue;
-import java.util.function.BooleanSupplier;
-import java.util.function.Consumer;
-import java.util.function.LongSupplier;
-
-/**
- * Orders Events by the time they are due to be executed. Can execute Events individually.
- *
- * @author Fabian Stemmler
- *
- */
-public class Timeline
-{
- private PriorityQueue<InnerEvent> events;
- private LongSupplier time;
- private long lastTimeUpdated = 0;
-
- private final List<Consumer<TimelineEvent>> eventAddedListener;
-
- public Timeline(int initCapacity)
- {
- events = new PriorityQueue<InnerEvent>(initCapacity);
-
- eventAddedListener = new ArrayList<>();
- time = () -> lastTimeUpdated;
- }
-
- /**
- * @param timestamp exclusive
- * @return true if the first event is later than the timestamp
- */
- public BooleanSupplier laterThan(long timestamp)
- {
- return () -> timeCmp(events.peek().getTiming(), timestamp) > 0;
- }
-
- public boolean hasNext()
- {
- return !events.isEmpty();
- }
-
- /**
- * Executes all events at the next timestamp, at which there are any
- */
- public void executeNext()
- {
- InnerEvent first = events.peek();
- if (first != null)
- executeUntil(laterThan(first.getTiming()), -1);
- }
-
- public void executeAll()
- {
- while (hasNext())
- executeNext();
- }
-
- /**
- * Executes all events until a given condition is met. The simulation process can be constrained by a real world timestamp.
- *
- * @param condition the condition until which the events are be processed
- * @param stopMillis the System.currentTimeMillis() when simulation definitely needs to stop. A value of -1 means no timeout.
- * @return State of the event execution
- * @formatter:off
- * <code>NOTHING_DONE</code> if the {@link Timeline} was already empty
- * <code>EXEC_OUT_OF_TIME</code> if the given maximum time was reached
- * <code>EXEC_UNTIL_CONDITION</code> if the condition was met
- * <code>EXEC_UNTIL_EMPTY</code> if events were executed until the {@link Timeline} was empty
- * @formatter:on
- * @author Christian Femers, Fabian Stemmler
- */
- public ExecutionResult executeUntil(BooleanSupplier condition, long stopMillis)
- {
- if (events.isEmpty())
- {
- lastTimeUpdated = getSimulationTime();
- return ExecutionResult.NOTHING_DONE;
- }
- int checkStop = 0;
- InnerEvent first = events.peek();
- while (hasNext() && !condition.getAsBoolean())
- {
- events.remove();
- lastTimeUpdated = first.getTiming();
- first.run();
- // Don't check after every run
- checkStop = (checkStop + 1) % 10;
- if (checkStop == 0 && System.currentTimeMillis() >= stopMillis)
- return ExecutionResult.EXEC_OUT_OF_TIME;
- first = events.peek();
- }
- lastTimeUpdated = getSimulationTime();
- return hasNext() ? ExecutionResult.EXEC_UNTIL_EMPTY : ExecutionResult.EXEC_UNTIL_CONDITION;
- }
-
- public void setTimeFunction(LongSupplier time)
- {
- this.time = time;
- }
-
- public long getSimulationTime()
- {
- return time.getAsLong();
- }
-
- public long nextEventTime()
- {
- if (!hasNext())
- return -1;
- return events.peek().getTiming();
- }
-
- public void reset()
- {
- events.clear();
- lastTimeUpdated = 0;
- }
-
- public void addEventAddedListener(Consumer<TimelineEvent> listener)
- {
- eventAddedListener.add(listener);
- }
-
- public void removeEventAddedListener(Consumer<TimelineEvent> listener)
- {
- eventAddedListener.remove(listener);
- }
-
- /**
- * Adds an Event to the {@link Timeline}
- *
- * @param function The {@link TimelineEventHandler} that will be executed, when the {@link InnerEvent} occurs on the timeline.
- * @param relativeTiming The amount of MI ticks in which the {@link InnerEvent} is called, starting from the current time.
- */
- public void addEvent(TimelineEventHandler function, int relativeTiming)
- {
- long timing = getSimulationTime() + relativeTiming;
- TimelineEvent event = new TimelineEvent(timing);
- events.add(new InnerEvent(function, event));
- eventAddedListener.forEach(l -> l.accept(event));
- }
-
- private class InnerEvent implements Runnable, Comparable<InnerEvent>
- {
- private final TimelineEventHandler function;
- private final TimelineEvent event;
-
- /**
- * Creates an {@link InnerEvent}
- *
- * @param function {@link TimelineEventHandler} to be executed when the {@link InnerEvent} occurs
- * @param timing Point in the MI simulation {@link Timeline}, at which the {@link InnerEvent} is executed;
- */
- InnerEvent(TimelineEventHandler function, TimelineEvent event)
- {
- this.function = function;
- this.event = event;
- }
-
- public long getTiming()
- {
- return event.getTiming();
- }
-
- @Override
- public void run()
- {
- function.handle(event);
- }
-
- @Override
- public String toString()
- {
- return event.toString();
- }
-
- @Override
- public int compareTo(InnerEvent o)
- {
- return timeCmp(getTiming(), o.getTiming());
- }
- }
-
- public static int timeCmp(long a, long b)
- {
- return Long.signum(a - b);
- }
-
- @Override
- public String toString()
- {
- return String.format("Simulation time: %s, Last update: %d, Events: %s", getSimulationTime(), lastTimeUpdated, events.toString());
- }
-
- public enum ExecutionResult
- {
- NOTHING_DONE, EXEC_UNTIL_EMPTY, EXEC_UNTIL_CONDITION, EXEC_OUT_OF_TIME
- }
+package net.mograsim.logic.core.timeline;\r
+\r
+import java.util.ArrayList;\r
+import java.util.List;\r
+import java.util.PriorityQueue;\r
+import java.util.function.BooleanSupplier;\r
+import java.util.function.Consumer;\r
+import java.util.function.LongSupplier;\r
+\r
+/**\r
+ * Orders Events by the time they are due to be executed. Can execute Events individually.\r
+ * \r
+ * @author Fabian Stemmler\r
+ *\r
+ */\r
+public class Timeline\r
+{\r
+ private PriorityQueue<InnerEvent> events;\r
+ private LongSupplier time;\r
+ private long lastTimeUpdated = 0;\r
+\r
+ private final List<Consumer<TimelineEvent>> eventAddedListener;\r
+\r
+ public Timeline(int initCapacity)\r
+ {\r
+ events = new PriorityQueue<>(initCapacity);\r
+\r
+ eventAddedListener = new ArrayList<>();\r
+ time = () -> lastTimeUpdated;\r
+ }\r
+\r
+ /**\r
+ * @param timestamp exclusive\r
+ * @return true if the first event is later than the timestamp\r
+ */\r
+ public BooleanSupplier laterThan(long timestamp)\r
+ {\r
+ return () -> timeCmp(events.peek().getTiming(), timestamp) > 0;\r
+ }\r
+\r
+ public boolean hasNext()\r
+ {\r
+ return !events.isEmpty();\r
+ }\r
+\r
+ /**\r
+ * Executes all events at the next timestamp, at which there are any\r
+ */\r
+ public void executeNext()\r
+ {\r
+ InnerEvent first = events.peek();\r
+ if (first != null)\r
+ executeUntil(laterThan(first.getTiming()), -1);\r
+ }\r
+\r
+ public void executeAll()\r
+ {\r
+ while (hasNext())\r
+ executeNext();\r
+ }\r
+\r
+ /**\r
+ * Executes all events until a given condition is met. The simulation process can be constrained by a real world timestamp.\r
+ * \r
+ * @param condition the condition until which the events are be processed\r
+ * @param stopMillis the System.currentTimeMillis() when simulation definitely needs to stop. A value of -1 means no timeout.\r
+ * @return State of the event execution\r
+ * @formatter:off\r
+ * <code>NOTHING_DONE</code> if the {@link Timeline} was already empty\r
+ * <code>EXEC_OUT_OF_TIME</code> if the given maximum time was reached\r
+ * <code>EXEC_UNTIL_CONDITION</code> if the condition was met\r
+ * <code>EXEC_UNTIL_EMPTY</code> if events were executed until the {@link Timeline} was empty\r
+ * @formatter:on\r
+ * @author Christian Femers, Fabian Stemmler\r
+ */\r
+ public ExecutionResult executeUntil(BooleanSupplier condition, long stopMillis)\r
+ {\r
+ if (events.isEmpty())\r
+ {\r
+ lastTimeUpdated = getSimulationTime();\r
+ return ExecutionResult.NOTHING_DONE;\r
+ }\r
+ int checkStop = 0;\r
+ InnerEvent first = events.peek();\r
+ while (hasNext() && !condition.getAsBoolean())\r
+ {\r
+ events.remove();\r
+ lastTimeUpdated = first.getTiming();\r
+ first.run();\r
+ // Don't check after every run\r
+ checkStop = (checkStop + 1) % 10;\r
+ if (checkStop == 0 && System.currentTimeMillis() >= stopMillis)\r
+ return ExecutionResult.EXEC_OUT_OF_TIME;\r
+ first = events.peek();\r
+ }\r
+ lastTimeUpdated = getSimulationTime();\r
+ return hasNext() ? ExecutionResult.EXEC_UNTIL_EMPTY : ExecutionResult.EXEC_UNTIL_CONDITION;\r
+ }\r
+\r
+ public void setTimeFunction(LongSupplier time)\r
+ {\r
+ this.time = time;\r
+ }\r
+\r
+ public long getSimulationTime()\r
+ {\r
+ return time.getAsLong();\r
+ }\r
+\r
+ public long nextEventTime()\r
+ {\r
+ if (!hasNext())\r
+ return -1;\r
+ return events.peek().getTiming();\r
+ }\r
+\r
+ public void reset()\r
+ {\r
+ events.clear();\r
+ lastTimeUpdated = 0;\r
+ }\r
+\r
+ public void addEventAddedListener(Consumer<TimelineEvent> listener)\r
+ {\r
+ eventAddedListener.add(listener);\r
+ }\r
+\r
+ public void removeEventAddedListener(Consumer<TimelineEvent> listener)\r
+ {\r
+ eventAddedListener.remove(listener);\r
+ }\r
+\r
+ /**\r
+ * Adds an Event to the {@link Timeline}\r
+ * \r
+ * @param function The {@link TimelineEventHandler} that will be executed, when the {@link InnerEvent} occurs on the timeline.\r
+ * @param relativeTiming The amount of MI ticks in which the {@link InnerEvent} is called, starting from the current time.\r
+ */\r
+ public void addEvent(TimelineEventHandler function, int relativeTiming)\r
+ {\r
+ long timing = getSimulationTime() + relativeTiming;\r
+ TimelineEvent event = new TimelineEvent(timing);\r
+ events.add(new InnerEvent(function, event));\r
+ eventAddedListener.forEach(l -> l.accept(event));\r
+ }\r
+\r
+ private class InnerEvent implements Runnable, Comparable<InnerEvent>\r
+ {\r
+ private final TimelineEventHandler function;\r
+ private final TimelineEvent event;\r
+\r
+ /**\r
+ * Creates an {@link InnerEvent}\r
+ * \r
+ * @param function {@link TimelineEventHandler} to be executed when the {@link InnerEvent} occurs\r
+ * @param timing Point in the MI simulation {@link Timeline}, at which the {@link InnerEvent} is executed;\r
+ */\r
+ InnerEvent(TimelineEventHandler function, TimelineEvent event)\r
+ {\r
+ this.function = function;\r
+ this.event = event;\r
+ }\r
+\r
+ public long getTiming()\r
+ {\r
+ return event.getTiming();\r
+ }\r
+\r
+ @Override\r
+ public void run()\r
+ {\r
+ function.handle(event);\r
+ }\r
+\r
+ @Override\r
+ public String toString()\r
+ {\r
+ return event.toString();\r
+ }\r
+\r
+ @Override\r
+ public int compareTo(InnerEvent o)\r
+ {\r
+ return timeCmp(getTiming(), o.getTiming());\r
+ }\r
+ }\r
+\r
+ public static int timeCmp(long a, long b)\r
+ {\r
+ return Long.signum(a - b);\r
+ }\r
+\r
+ @Override\r
+ public String toString()\r
+ {\r
+ return String.format("Simulation time: %s, Last update: %d, Events: %s", getSimulationTime(), lastTimeUpdated, events.toString());\r
+ }\r
+\r
+ public enum ExecutionResult\r
+ {\r
+ NOTHING_DONE, EXEC_UNTIL_EMPTY, EXEC_UNTIL_CONDITION, EXEC_OUT_OF_TIME\r
+ }\r
}
\ No newline at end of file
-package net.mograsim.logic.core.types;
-
-import net.mograsim.logic.core.types.ColorDefinition.BuiltInColor;
-import net.mograsim.logic.core.wires.Wire.ReadEnd;
-
-public class BitVectorFormatter
-{
- public static String formatValueAsString(ReadEnd end)
- {
- return formatAsString(end == null ? null : end.getValues());
- }
-
- public static String formatAsString(BitVector bitVector)
- {
- if (bitVector == null)
- return "null";
- else
- return bitVector.toString();
- }
-
- public static ColorDefinition formatAsColor(ReadEnd end)
- {
- return formatAsColor(end == null ? null : end.getValues());
- }
-
- public static ColorDefinition formatAsColor(BitVector bitVector)
- {
- // TODO maybe find a color assignment for multiple-bit bit vectors?
- if (bitVector == null || bitVector.length() != 1)
- return new ColorDefinition(BuiltInColor.COLOR_BLACK);
- else
- switch (bitVector.getBit(0))
- {
- case ONE:
- return new ColorDefinition(BuiltInColor.COLOR_GREEN);
- case U:
- return new ColorDefinition(BuiltInColor.COLOR_CYAN);
- case X:
- return new ColorDefinition(BuiltInColor.COLOR_RED);
- case Z:
- return new ColorDefinition(BuiltInColor.COLOR_YELLOW);
- case ZERO:
- return new ColorDefinition(BuiltInColor.COLOR_GRAY);
- default:
- throw new IllegalArgumentException("Unknown enum constant: " + bitVector.getBit(0));
- }
- }
-
- private BitVectorFormatter()
- {
- throw new UnsupportedOperationException("No BitVectorFormatter instances");
- }
+package net.mograsim.logic.core.types;\r
+\r
+import net.mograsim.logic.core.types.ColorDefinition.BuiltInColor;\r
+import net.mograsim.logic.core.wires.Wire.ReadEnd;\r
+\r
+public class BitVectorFormatter\r
+{\r
+ public static String formatValueAsString(ReadEnd end)\r
+ {\r
+ return formatAsString(end == null ? null : end.getValues());\r
+ }\r
+\r
+ public static String formatAsString(BitVector bitVector)\r
+ {\r
+ if (bitVector == null)\r
+ return "null";\r
+ return bitVector.toString();\r
+ }\r
+\r
+ public static ColorDefinition formatAsColor(ReadEnd end)\r
+ {\r
+ return formatAsColor(end == null ? null : end.getValues());\r
+ }\r
+\r
+ public static ColorDefinition formatAsColor(BitVector bitVector)\r
+ {\r
+ // TODO maybe find a color assignment for multiple-bit bit vectors?\r
+ if (bitVector == null || bitVector.length() != 1)\r
+ return new ColorDefinition(BuiltInColor.COLOR_BLACK);\r
+ switch (bitVector.getBit(0))\r
+ {\r
+ case ONE:\r
+ return new ColorDefinition(BuiltInColor.COLOR_GREEN);\r
+ case U:\r
+ return new ColorDefinition(BuiltInColor.COLOR_CYAN);\r
+ case X:\r
+ return new ColorDefinition(BuiltInColor.COLOR_RED);\r
+ case Z:\r
+ return new ColorDefinition(BuiltInColor.COLOR_YELLOW);\r
+ case ZERO:\r
+ return new ColorDefinition(BuiltInColor.COLOR_GRAY);\r
+ default:\r
+ throw new IllegalArgumentException("Unknown enum constant: " + bitVector.getBit(0));\r
+ }\r
+ }\r
+\r
+ private BitVectorFormatter()\r
+ {\r
+ throw new UnsupportedOperationException("No BitVectorFormatter instances");\r
+ }\r
}
\ No newline at end of file
projects / Mograsim.git / commitdiff