hades.simulator
Class VhdlBatchSimKernel

java.lang.Object
  hades.simulator.SimKernel
      hades.simulator.VhdlSimKernel
          hades.simulator.VhdlBatchSimKernel

All Implemented Interfaces:

ContextToolTip, java.lang.Runnable, Simulatable

public class VhdlBatchSimKernel

extends VhdlSimKernel

implements java.lang.Runnable

A simulation engine with VHDL-like semantics. VhdlBatchSimKernel implements a discrete-event 2-list delta-delay simulation engine that supports VHDL-like semantics: during simulation, the simulator collects all events scheduled at the same simulation time, then executes all pending signal assignments, before continuing with the next simulation cycle.

Similar to RealTimeSimKernel, the simulation will not run faster than (approximately) real time, to allow for visualization and animation.

Nested Class Summary

Nested classes inherited from class hades.simulator.VhdlSimKernel

VhdlSimKernel.DeleteAllEventsFromSourceCommand, VhdlSimKernel.NOP

Field Summary

(package private) static java.lang.String

versionString

Fields inherited from class hades.simulator.VhdlSimKernel

COLLECT_CYCLE, delta_resync_iterations, eventTime, EXECUTE_CYCLE, global_errors, IDLE_CYCLE, lastSyncTime, macroState, microState, n_max_pending, n_resync_iterations, PENDING_ARRAY_SIZE, pendingArrayIndex, pendingEventArray, pendingEventTargetArray, realTime, RECYCLE_ARRAY_SIZE, recycleEventArray, recycleIndex, t_sleep, t0, t1

Fields inherited from class hades.simulator.SimKernel

commandQueue, console, controlPanel, debug, design, ELABORATE, endTime, eventList, n_interactive, n_interactive_transferred, n_iterations, n_processed, n_scheduled, n_simulators, name, painter, PAUSED, RESET, runner, RUNNING, shouldStop, simTime, simulatorID, SINGLESTEP, state, STOPPED

Constructor Summary

VhdlBatchSimKernel()
constructor for an so far idle simulation engine

Method Summary

(package private) void	checkInteractiveEvents()
(package private) void	checkResync() check whether we need to re-synchronize simulation time and real time.
(package private) void	collectEvents()
(package private) void	simulation() simulation: for each iteration, we first check and handle interactive events.
java.lang.String	toString() standard identification method

Methods inherited from class hades.simulator.VhdlSimKernel

addPendingEvent, addRecycleableEvent, deleteAllEventsFromSource, executeAllPendingEvents, executePendingEvent, initializeSimulator, printStatus, reallocatePendingEventArrays, reallocateRecycleEventArrays, recycleEvents, resync, run, runForever, scheduleInteractiveEvent, sleep

Methods inherited from class hades.simulator.SimKernel

checkClearWaveforms, continueSimulation, dbg, elaborate, elaborateComponents, evaluate, executeSingleStep, getDebug, getEventList, getNumberOfProcessedEvents, getNumberOfScheduledEvents, getSimTime, getState, getSyncPainter, getToolTip, hasEvents, isPaused, isReset, isRunning, isSingleStep, main, message, pauseSimulation_NEW, pauseSimulation, printNextPendingEvent, processPendingRepaints, run_debug, runFor, scheduleEvent, scheduleWakeup, setConsole, setControlPanel, setDebug, setDesign, setName, setSyncPainter, singleStep, stopSimulation_NEW, stopSimulation, usage

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Runnable

run

Field Detail

versionString

static java.lang.String versionString

Constructor Detail

VhdlBatchSimKernel

public VhdlBatchSimKernel()

constructor for an so far idle simulation engine

Method Detail

simulation

void simulation()

simulation: for each iteration, we first check and handle interactive events. Next, we check simulation and real-time and re-synchronize, if necessary.

Finally, we collect and execute the events.

Overrides:

simulation in class VhdlSimKernel

checkInteractiveEvents

void checkInteractiveEvents()

Overrides:

checkInteractiveEvents in class VhdlSimKernel

checkResync

void checkResync()

check whether we need to re-synchronize simulation time and real time. Currently, this is done after every n_resync_iterations cycles, or every 0.5 seconds of real time.

Overrides:

checkResync in class VhdlSimKernel

collectEvents

void collectEvents()

Overrides:

collectEvents in class VhdlSimKernel

toString

public java.lang.String toString()

standard identification method

Overrides:

toString in class VhdlSimKernel