#include <CompiledSimulation.hh>

Collaboration diagram for CompiledSimulation:

Public Member Functions
	CompiledSimulation (const TTAMachine::Machine &machine, InstructionAddress entryAddress, InstructionAddress lastInstruction, SimulatorFrontend &frontend, CompiledSimController &controller, MemorySystem &memorySystem, bool dynamicCompilation, ProcedureBBRelations &procedureBBRelations)

virtual	~CompiledSimulation ()

virtual void	simulateCycle ()=0

virtual void	cycleEnd ()

virtual void	step (double count)

virtual void	next (int count)

virtual void	run ()

virtual void	runUntil (UIntWord address)

virtual InstructionAddress	programCounter () const

virtual InstructionAddress	lastExecutedInstruction () const

virtual ClockCycleCount	cycleCount () const

virtual SimValue	registerFileValue (const char *rfName, int registerIndex)

virtual SimValue	immediateUnitRegisterValue (const char *iuName, int index)

virtual SimValue	FUPortValue (const char fuName, const char portName)

virtual void	requestToStop ()

virtual bool	stopRequested () const

virtual bool	isFinished () const

virtual ClockCycleCount	moveExecutionCount (int moveNumber, InstructionAddress address) const

virtual InstructionAddress	basicBlockStart (InstructionAddress address) const

Static Public Member Functions
static void	clearFUResults (FUResultType &results)

static void	addFUResult (FUResultType &results, ClockCycleCount cycleCount, const SimValue &value, int latency)

static void	addFUResult (FUResultType &results, ClockCycleCount cycleCount, const UIntWord &value, int latency)

static void	FUResult (SimValue &target, FUResultType &results, ClockCycleCount cycles)

Public Attributes
ClockCycleCount	cycleCount_
	Number of cycles simulated so far. More...

int	basicBlockCount_
	Number of basic blocks gone through. More...

InstructionAddress	jumpTarget_
	The jump target. Allows jumping to different addresses in the code. More...

InstructionAddress	programCounter_
	The program counter. i.e. which address the simulation is currently at. More...

InstructionAddress	lastExecutedInstruction_
	Last executed instruction. More...

ClockCycleCount	cyclesToSimulate_
	Number of cycles left to simulate until the execution returns. More...

bool	stopRequested_
	Should the simulation stop or not? More...

bool	isFinished_
	Is the simulation finished? More...

OperationPool	operationPool_
	The operation pool. More...

SimulateFunction	jumpTargetFunc_
	Next jump target as a function pointer" << endl. More...

bool	conflictDetected_
	A flag for FU conflict detection. More...

ClockCycleCount *	moveExecCounts_
	Move execution counts in a C style table. More...

ClockCycleCount *	bbExecCounts_
	Basic block execution counts in a C style table. More...

Protected Member Functions
TTAMachine::FunctionUnit &	functionUnit (const char *name) const

DirectAccessMemory &	FUMemory (const char *FUName) const

MemorySystem *	memorySystem () const

SimulatorFrontend &	frontend () const

void	msg (const char *message) const

void	haltSimulation (const char file, int line, const char procedure, const char *message) const

void	resizeJumpTable (int newSize)

SimulateFunction	getSimulateFunction (InstructionAddress address)

void	setJumpTargetFunction (InstructionAddress address, SimulateFunction fp)

void	compileAndLoadFunction (InstructionAddress address)

SimValue *	getSymbolValue (const char *symbolName)

void	addSymbol (const char *symbolName, SimValue &value)

Protected Attributes
bool	dynamicCompilation_
	Is this a dynamic compiled simulation? More...

ProcedureBBRelations &	procedureBBRelations_
	A struct for finding out procedure begins from procedure's basic blocks. More...

const TTAMachine::Machine &	machine_
	The simulated machine. More...

const InstructionAddress	entryAddress_
	Entry address of the program. More...

const InstructionAddress	lastInstruction_
	Last instruction of the program. More...

Private Member Functions
	CompiledSimulation (const CompiledSimulation &)
	Copying not allowed. More...

CompiledSimulation &	operator= (const CompiledSimulation &)
	Assignment not allowed. More...

Private Attributes
CompiledSimulationPimpl *	pimpl_
	Private implementation in a separate source file. More...

Detailed Description

An abstract class that is used as a base for all the compiled simulations

The derived classes are generated by CompiledSimCodeGenerator and then get loaded as plugins by the CompiledSimController.

Definition at line 112 of file CompiledSimulation.hh.

Constructor & Destructor Documentation

◆ CompiledSimulation() [1/2]

CompiledSimulation::CompiledSimulation	(	const TTAMachine::Machine &	machine,
		InstructionAddress	entryAddress,
		InstructionAddress	lastInstruction,
		SimulatorFrontend &	frontend,
		CompiledSimController &	controller,
		MemorySystem &	memorySystem,
		bool	dynamicCompilation,
		ProcedureBBRelations &	procedureBBRelations
	)

The constructor

Grabs all shared data from machine and program and saves them for easy access for later usage.

Parameters

machine	The simulated machine
program	The simulated program
frontend	The simulation frontend
memorySystem	The memory system

Definition at line 72 of file CompiledSimulation.cc.

                                                 :
     cycleCount_(0),
     basicBlockCount_(0),
     jumpTarget_(entryAddress),
     programCounter_(entryAddress),
     lastExecutedInstruction_(0),
     cyclesToSimulate_(MAX_CYCLES),                  
     stopRequested_(false),
     isFinished_(false),
     conflictDetected_(false),
     dynamicCompilation_(dynamicCompilation),
     procedureBBRelations_(procedureBBRelations),
     machine_(machine),
     entryAddress_(entryAddress),
     lastInstruction_(lastInstruction), pimpl_(new CompiledSimulationPimpl()) {
     pimpl_->memorySystem_ = &memorySystem;
     pimpl_->frontend_ = &frontend;
     pimpl_->controller_ = &controller;
     
     // Allocate memory for calculating move and basic block execution counts
     int moveCount = pimpl_->controller_->program().moveCount();
     moveExecCounts_ = new ClockCycleCount[moveCount];
     for (int i = 0; i < moveCount; ++i) {
         moveExecCounts_[i] = 0;
     }
     
     int bbCount = lastInstruction - entryAddress + 1;
     bbExecCounts_ = new ClockCycleCount[bbCount];
     for (int i = 0; i < bbCount; ++i) {
         bbExecCounts_[i] = 0;
     }
     
     // Find program exit points
     pimpl_->exitPoints_ = pimpl_->controller_->findProgramExitPoints(
         pimpl_->controller_->program(), machine_);
 }

References bbExecCounts_, CompiledSimulationPimpl::controller_, CompiledSimulationPimpl::exitPoints_, TTASimulationController::findProgramExitPoints(), frontend(), CompiledSimulationPimpl::frontend_, machine_, memorySystem(), CompiledSimulationPimpl::memorySystem_, TTAProgram::Program::moveCount(), moveExecCounts_, pimpl_, and CompiledSimController::program().

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◆ ~CompiledSimulation()

CompiledSimulation::~CompiledSimulation ( )

virtual

The destructor. Frees private implementation

Definition at line 120 of file CompiledSimulation.cc.

                                         {
     delete[] bbExecCounts_;
     bbExecCounts_ = NULL;
     
     delete[] moveExecCounts_;
     moveExecCounts_ = NULL;
     
     delete pimpl_;
     pimpl_ = NULL;
     
 }

References bbExecCounts_, moveExecCounts_, and pimpl_.

◆ CompiledSimulation() [2/2]

CompiledSimulation::CompiledSimulation ( const CompiledSimulation & )

private

Copying not allowed.

Member Function Documentation

◆ addFUResult() [1/2]

static void CompiledSimulation::addFUResult	(	FUResultType &	results,
		ClockCycleCount	cycleCount,
		const SimValue &	value,
		int	latency
	)

inlinestatic

◆ addFUResult() [2/2]

static void CompiledSimulation::addFUResult	(	FUResultType &	results,
		ClockCycleCount	cycleCount,
		const UIntWord &	value,
		int	latency
	)

inlinestatic

◆ addSymbol()

void CompiledSimulation::addSymbol	(	const char *	symbolName,
		SimValue &	value
	)

protected

Adds a new symbol name -> SimValue pair to the symbols map

Parameters

symbolName	the symbol name
value	the SimValue

Definition at line 597 of file CompiledSimulation.cc.

                                                                      {
     pimpl_->symbols_[std::string(symbolName)] = &value;
 }

References pimpl_, and CompiledSimulationPimpl::symbols_.

◆ basicBlockStart()

InstructionAddress CompiledSimulation::basicBlockStart ( InstructionAddress address ) const

virtual

Returns start of the basic block for given address of a basic block

Parameters

address address of a basic block

Returns: start address of the basic block

Definition at line 389 of file CompiledSimulation.cc.

                                                                     {
     return pimpl_->controller_->basicBlockStart(address);
 }

References CompiledSimController::basicBlockStart(), CompiledSimulationPimpl::controller_, and pimpl_.

Referenced by moveExecutionCount().

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◆ clearFUResults()

static void CompiledSimulation::clearFUResults ( FUResultType & results )

inlinestatic

◆ compileAndLoadFunction()

void CompiledSimulation::compileAndLoadFunction ( InstructionAddress address )

protected

Compiles and loads all simulate functions belonging to a procedure containing the given address.

Parameters

address (any) address of a procedure to compile

Definition at line 535 of file CompiledSimulation.cc.

                                                                      {
     
     InstructionAddress procedureStart =
         procedureBBRelations_.procedureStart[address];
     
     // Files compiled so far
     std::set<std::string> compiledFiles;
     
     CompiledSimSymbolGenerator symbolGen(Conversion::toString(pimpl_->controller_));
     
     // Get basic blocks of a procedure
     typedef ProcedureBBRelations::BasicBlockStarts::iterator BBIterator;
     std::pair<BBIterator, BBIterator> equalRange = 
         procedureBBRelations_.basicBlockStarts.equal_range(procedureStart);
  
     // Loop all basic blocks of a procedure, then compile all its files
     for (BBIterator it = equalRange.first; it != equalRange.second; ++it) {
         std::string file = procedureBBRelations_.basicBlockFiles[it->second];
         
         // Compile the file if it hasn't been already
         if (compiledFiles.find(file) == compiledFiles.end()) {
             pimpl_->compiler_.compileToSO(file);
             std::string soPath = FileSystem::directoryOfPath(file) 
                 + FileSystem::DIRECTORY_SEPARATOR 
                 + FileSystem::fileNameBody(file) + ".so";
             pimpl_->pluginTools_.registerModule(soPath);
             compiledFiles.insert(file);
         }
  
         // Load the generated simulate function
         SimulateFunction fn;
         pimpl_->pluginTools_.importSymbol(
             symbolGen.basicBlockSymbol(it->second), fn);        
         setJumpTargetFunction(it->second, fn);
     }
 }

References ProcedureBBRelations::basicBlockFiles, ProcedureBBRelations::basicBlockStarts, CompiledSimSymbolGenerator::basicBlockSymbol(), CompiledSimulationPimpl::compiler_, CompiledSimCompiler::compileToSO(), CompiledSimulationPimpl::controller_, FileSystem::DIRECTORY_SEPARATOR, FileSystem::directoryOfPath(), FileSystem::fileNameBody(), PluginTools::importSymbol(), pimpl_, CompiledSimulationPimpl::pluginTools_, procedureBBRelations_, ProcedureBBRelations::procedureStart, PluginTools::registerModule(), setJumpTargetFunction(), and Conversion::toString().

Referenced by getSimulateFunction().

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◆ cycleCount()

ClockCycleCount CompiledSimulation::cycleCount ( ) const

virtual

Returns the current cycle count

Returns: the current cycle count

Definition at line 242 of file CompiledSimulation.cc.

                                                      {
     return cycleCount_;
 }

References cycleCount_.

◆ cycleEnd()

void CompiledSimulation::cycleEnd ( )

virtual

Lets the simulator frontend handle a single cycle end.

Used for example when generating traces.

Definition at line 138 of file CompiledSimulation.cc.

                              {
     lastExecutedInstruction_ = programCounter_;
     programCounter_++;
     pimpl_->frontend_->eventHandler().handleEvent(
         SimulationEventHandler::SE_CYCLE_END);
 }

References SimulatorFrontend::eventHandler(), CompiledSimulationPimpl::frontend_, Informer::handleEvent(), lastExecutedInstruction_, pimpl_, programCounter_, and SimulationEventHandler::SE_CYCLE_END.

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◆ frontend()

SimulatorFrontend & CompiledSimulation::frontend ( ) const

protected

Returns a reference to the simulator frontend

Returns: a reference to the simulator frontend

Definition at line 440 of file CompiledSimulation.cc.

                                    { 
     return *(pimpl_->frontend_); 
 }

References CompiledSimulationPimpl::frontend_, and pimpl_.

Referenced by CompiledSimulation().

◆ FUMemory()

DirectAccessMemory & CompiledSimulation::FUMemory ( const char * FUName ) const

protected

Returns a memory object of the given function unit

Parameters

FUName name of the function unit

Returns: memory object of the given function unit

Exceptions

InstanceNotFound If an item is not found

Definition at line 413 of file CompiledSimulation.cc.

                                                      {
     assert(
         machine_.functionUnitNavigator().item(FUName)->addressSpace() != NULL);
     return 
         dynamic_cast<DirectAccessMemory&>(
             *memorySystem()->memory(
                 *machine_.functionUnitNavigator().item(
                     FUName)->addressSpace()).get());
 }

References assert, TTAMachine::Machine::functionUnitNavigator(), TTAMachine::Machine::Navigator< ComponentType >::item(), machine_, MemorySystem::memory(), and memorySystem().

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◆ functionUnit()

TTAMachine::FunctionUnit & CompiledSimulation::functionUnit ( const char * name ) const

protected

Returns a function unit of the given name

Parameters

name	name of the function unit to return

Returns: function unit of given name

Exceptions

InstanceNotFound If a function unit is not found

Definition at line 401 of file CompiledSimulation.cc.

                                                        {
     return *machine_.functionUnitNavigator().item(name);
 }

References TTAMachine::Machine::functionUnitNavigator(), TTAMachine::Machine::Navigator< ComponentType >::item(), and machine_.

Referenced by FUPortValue().

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◆ FUPortValue()

SimValue CompiledSimulation::FUPortValue	(	const char *	fuName,
		const char *	portName
	)

virtual

Returns the value of the given FU port

Parameters

fuName	Name of the FU
portIndex	index of the port in the FU

Returns: A SimValue containing the port's present value

Exceptions

InstanceNotFound If the FU port cannot be found

Definition at line 306 of file CompiledSimulation.cc.

                                                                         {
     
     CompiledSimSymbolGenerator symbolGen(Conversion::toString(pimpl_->controller_));
     FunctionUnit* fu = NULL;
     try {
         fu = &functionUnit(fuName);
     } catch(InstanceNotFound& e) {
         fu = machine_.controlUnit();
     }
     
     std::string fuPort = symbolGen.portSymbol(*fu->port(portName));
     
     CompiledSimulationPimpl::Symbols::const_iterator fuPortIterator = 
         pimpl_->symbols_.find(fuPort);
     if (fuPortIterator != pimpl_->symbols_.end()) {
         return *(fuPortIterator->second);
     } else {
         throw InstanceNotFound(__FILE__, __LINE__, __func__, 
             "FU port " + std::string(fuPort) + " not found.");
     }
 }

References __func__, CompiledSimulationPimpl::controller_, TTAMachine::Machine::controlUnit(), functionUnit(), machine_, pimpl_, TTAMachine::FunctionUnit::port(), CompiledSimSymbolGenerator::portSymbol(), CompiledSimulationPimpl::symbols_, and Conversion::toString().

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◆ FUResult()

static void CompiledSimulation::FUResult	(	SimValue &	target,
		FUResultType &	results,
		ClockCycleCount	cycles
	)

inlinestatic

◆ getSimulateFunction()

SimulateFunction CompiledSimulation::getSimulateFunction ( InstructionAddress address )

protected

Gets the simulate function of given address from the jump table.

If this is a dynamic compiled simulation, it'll first check if the simulate- function is available. If not, it will compile the required files first and then loads the simulate function symbols.

Parameters

address address to get the simulate function for

Returns: Simulate Function of given address from the jump table

Exceptions

SimulationExecutionError If the jump function couldn't be gotten

Definition at line 494 of file CompiledSimulation.cc.

                                                                   {
     
     // Is there an already existing simulate function in the given address?
     SimulateFunction targetFunction = pimpl_->jumpTable_[address];
     if (targetFunction != 0) {
             return targetFunction;
     }
     
     if (dynamicCompilation_) {
         compileAndLoadFunction(address);
         targetFunction = pimpl_->jumpTable_[address];
         if (targetFunction != 0) {
             return targetFunction;
         }
     }
     
     throw SimulationExecutionError(__FILE__, __LINE__, __FUNCTION__,
         "Cannot simulate jump to address " + Conversion::toString(address) + 
         ". Please try with the interpretive simulation engine." );
 }

References compileAndLoadFunction(), dynamicCompilation_, CompiledSimulationPimpl::jumpTable_, pimpl_, and Conversion::toString().

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◆ getSymbolValue()

SimValue * CompiledSimulation::getSymbolValue ( const char * symbolName )

protected

Returns value of the given symbol (be it RF, FU, or IU)

Parameters

symbolName Symbol name in the generated code

Returns: a pointer to the symbol's SimValue or 0 if the symbol wasn't found

Definition at line 579 of file CompiledSimulation.cc.

                                                          {
  
     CompiledSimulationPimpl::Symbols::iterator it = pimpl_->symbols_.find(
         std::string(symbolName));
     
     if (it != pimpl_->symbols_.end()) {
         return it->second;
     } else {
         return 0;
     }
 }

References pimpl_, and CompiledSimulationPimpl::symbols_.

◆ haltSimulation()

void CompiledSimulation::haltSimulation	(	const char *	file,
		int	line,
		const char *	procedure,
		const char *	message
	)		const

protected

Halts simulation by throwing an exception with a message attached to it

Parameters

file	file where the exception happened, i.e. FILE
line	line where the exception happened, i.e. LINE
procedure	function where the exception happened, i.e. FUNCTION
message	message to attach

Exceptions

SimulationExecutionError thrown always

Definition at line 464 of file CompiledSimulation.cc.

                                {
     throw SimulationExecutionError(file, line, procedure, message);
 }

◆ immediateUnitRegisterValue()

SimValue CompiledSimulation::immediateUnitRegisterValue	(	const char *	iuName,
		int	index
	)

virtual

Returns the value of the selected immediate unit register

Parameters

iuName	The name of the immediate unit
index	Index of the immediate register

Returns: A SimValue containing the present immediate register value

Exceptions

InstanceNotFound If the immediate unit cannot be found

Definition at line 280 of file CompiledSimulation.cc.

                                                                             {  
     
     CompiledSimSymbolGenerator symbolGen(Conversion::toString(pimpl_->controller_));
     ImmediateUnit& iu = *machine_.immediateUnitNavigator().item(iuName);
     std::string immediateUnit = symbolGen.immediateRegisterSymbol(
         iu, index);
     
     CompiledSimulationPimpl::Symbols::const_iterator iuIterator =
         pimpl_->symbols_.find(immediateUnit);
     if (iuIterator != pimpl_->symbols_.end()) {
         return *(iuIterator->second);
     } else {
         throw InstanceNotFound(__FILE__, __LINE__, __func__, 
             "Immediate unit " + std::string(iuName) + " not found.");
     }
 }

References __func__, CompiledSimulationPimpl::controller_, CompiledSimSymbolGenerator::immediateRegisterSymbol(), TTAMachine::Machine::immediateUnitNavigator(), TTAMachine::Machine::Navigator< ComponentType >::item(), machine_, pimpl_, CompiledSimulationPimpl::symbols_, and Conversion::toString().

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◆ isFinished()

bool CompiledSimulation::isFinished ( ) const

virtual

Returns true if the simulation is finished

Returns: true if the simulation is finished

Definition at line 354 of file CompiledSimulation.cc.

                                      {
     return isFinished_;
 }

References isFinished_.

◆ lastExecutedInstruction()

InstructionAddress CompiledSimulation::lastExecutedInstruction ( ) const

virtual

Returns address of the last executed instruction

Returns: Address of the last executed instruction

Definition at line 233 of file CompiledSimulation.cc.

                                                   {
     return lastExecutedInstruction_;    
 }

References lastExecutedInstruction_.

◆ memorySystem()

MemorySystem * CompiledSimulation::memorySystem ( ) const

protected

Returns a pointer to the memory system

Returns: a pointer to the memory system

Definition at line 429 of file CompiledSimulation.cc.

                                        {
     assert (pimpl_->memorySystem_ != NULL);
     return pimpl_->memorySystem_;
 }

References assert, CompiledSimulationPimpl::memorySystem_, and pimpl_.

Referenced by CompiledSimulation(), and FUMemory().

◆ moveExecutionCount()

ClockCycleCount CompiledSimulation::moveExecutionCount	(	int	moveNumber,
		InstructionAddress	address
	)		const

virtual

Returns move execution count for move #moveNumber.

Parameters

moveNumber move number as in POM

Returns: move execution count

Definition at line 365 of file CompiledSimulation.cc.

                                       {
     const Program& program = pimpl_->controller_->program();
     InstructionAddress programStartAddress = program.startAddress().location();
     const Move& move = program.moveAt(moveNumber);
     
     if (move.isUnconditional() && pimpl_->exitPoints_.find(address) == 
         pimpl_->exitPoints_.end()) {
         // Grab the whole basic block execution count
         InstructionAddress bbStart = basicBlockStart(address - 
             programStartAddress);
         return bbExecCounts_[bbStart];
     } else { // guarded move or an exit point, grab single move execution count
         return moveExecCounts_[moveNumber];
     }
 }

References basicBlockStart(), bbExecCounts_, CompiledSimulationPimpl::controller_, CompiledSimulationPimpl::exitPoints_, TTAProgram::Move::isUnconditional(), moveExecCounts_, pimpl_, program, and CompiledSimController::program().

Referenced by CompiledSimUtilizationStats::calculate().

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◆ msg()

void CompiledSimulation::msg ( const char * message ) const

protected

A short cut for printing debugging info from the compiled code.

Parameters

message The message string to be shown on the log stream

Definition at line 450 of file CompiledSimulation.cc.

                                                  {
     Application::logStream() << message << std::endl;
 }

References Application::logStream().

Referenced by next().

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◆ next()

void CompiledSimulation::next ( int count )

virtual

Throws an exception since this feature is not supported yet!

Exceptions

SimulationExecutionError always thrown

Definition at line 170 of file CompiledSimulation.cc.

                                   {
     
     std::string msg(
         "Command nexti not yet supported in the compiled simulation!");
     throw SimulationExecutionError(__FILE__, __LINE__, __FUNCTION__, msg);
     
     if (count) {}
 }

References msg().

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◆ operator=()

CompiledSimulation& CompiledSimulation::operator= ( const CompiledSimulation & )

private

Assignment not allowed.

◆ programCounter()

InstructionAddress CompiledSimulation::programCounter ( ) const

virtual

Returns the value of the current PC

Returns: the value of the current PC

Definition at line 223 of file CompiledSimulation.cc.

                                          {
     return programCounter_;
 }

References programCounter_.

◆ registerFileValue()

SimValue CompiledSimulation::registerFileValue	(	const char *	rfName,
		int	registerIndex
	)

virtual

Returns the value of the selected register

Parameters

rfName	The name of the register file
registerIndex	index of the register in the RF

Returns: A SimValue containing the present register value

Exceptions

InstanceNotFound If the RF cannot be found

Definition at line 255 of file CompiledSimulation.cc.

                                                                            {
       
     CompiledSimSymbolGenerator symbolGen(Conversion::toString(pimpl_->controller_));
     RegisterFile& rf = *machine_.registerFileNavigator().item(rfName);
     std::string registerFile = symbolGen.registerSymbol(rf, registerIndex);
     
     CompiledSimulationPimpl::Symbols::const_iterator rfIterator = 
         pimpl_->symbols_.find(registerFile);
     if (rfIterator != pimpl_->symbols_.end()) {
         return *(rfIterator->second);
     } else {
         throw InstanceNotFound(__FILE__, __LINE__, __func__, 
             "Register file " + std::string(rfName) + " not found.");
     }
 }

References __func__, CompiledSimulationPimpl::controller_, TTAMachine::Machine::Navigator< ComponentType >::item(), machine_, pimpl_, TTAMachine::Machine::registerFileNavigator(), CompiledSimSymbolGenerator::registerSymbol(), CompiledSimulationPimpl::symbols_, and Conversion::toString().

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◆ requestToStop()

void CompiledSimulation::requestToStop ( )

virtual

Sets the simulation to be requested to stop

Definition at line 332 of file CompiledSimulation.cc.

                                   {
     stopRequested_ = true;
 }

References stopRequested_.

◆ resizeJumpTable()

void CompiledSimulation::resizeJumpTable ( int newSize )

protected

Resizes the jump table

Parameters

newSize New size

Definition at line 478 of file CompiledSimulation.cc.

                                                {
     pimpl_->jumpTable_.resize(newSize, 0);
 }

References CompiledSimulationPimpl::jumpTable_, and pimpl_.

◆ run()

void CompiledSimulation::run ( )

virtual

Runs the simulation until it is finished or an exception occurs

Note: Advances only at an accuracy of a one basic block!

Parameters

address An address the simulation is allowed to stop after

Exceptions

SimulationExecutionError If a runtime error occurs in the simulated program.

Definition at line 189 of file CompiledSimulation.cc.

                         {
     cyclesToSimulate_ = MAX_CYCLES;
     stopRequested_ = false;
     while (!isFinished_ && !stopRequested_) {
         simulateCycle();
     }
 }

References cyclesToSimulate_, isFinished_, MAX_CYCLES, simulateCycle(), and stopRequested_.

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◆ runUntil()

void CompiledSimulation::runUntil ( UIntWord address )

virtual

Advance the simulation until a given address is reached

Note: Advances only at an accuracy of a one basic block!

Parameters

address An address the simulation is allowed to stop after

Exceptions

SimulationExecutionError If a runtime error occurs in the simulated program.

Definition at line 207 of file CompiledSimulation.cc.

                                              {
     cyclesToSimulate_ = MAX_CYCLES;
     stopRequested_ = false;
     while ((!stopRequested_ && !isFinished_ &&
         (jumpTarget_ != address || cycleCount_ == 0))) {
         simulateCycle();
     }
 }

References cycleCount_, cyclesToSimulate_, isFinished_, jumpTarget_, MAX_CYCLES, simulateCycle(), and stopRequested_.

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◆ setJumpTargetFunction()

void CompiledSimulation::setJumpTargetFunction	(	InstructionAddress	address,
		SimulateFunction	fp
	)

protected

Sets a jump target function for given address at the jump table

Parameters

address	address to set a jump function for
fp	function pointer to set at the address

Definition at line 522 of file CompiledSimulation.cc.

                          {
     pimpl_->jumpTable_[address] = fp;
 }

References CompiledSimulationPimpl::jumpTable_, and pimpl_.

Referenced by compileAndLoadFunction().

◆ simulateCycle()

virtual void CompiledSimulation::simulateCycle ( )

pure virtual

Referenced by run(), runUntil(), and step().

◆ step()

void CompiledSimulation::step ( double count )

virtual

Advance the simulation by a given amout of cycles.

Note: Advances only at an accuracy of a one basic block!

Parameters

count The number of cycles the simulation should be advanced at least

Exceptions

SimulationExecutionError If a runtime error occurs in the simulated program.

Definition at line 155 of file CompiledSimulation.cc.

                                      {
     cyclesToSimulate_ = cycleCount_ + static_cast<ClockCycleCount>(count);
     stopRequested_ = false;
     
     while (!stopRequested_ && !isFinished_) {
         simulateCycle();
     }
 }

References cycleCount_, cyclesToSimulate_, isFinished_, simulateCycle(), and stopRequested_.

Here is the call graph for this function:

◆ stopRequested()

bool CompiledSimulation::stopRequested ( ) const

virtual

Returns true if the simulation is requested to stop

This can be either because the simulation has finished or the requested amount of cycles has been simulated.

Returns: true if the simulation should stop

Definition at line 345 of file CompiledSimulation.cc.

                                         {
     return stopRequested_;
 }

References stopRequested_.

Member Data Documentation

◆ basicBlockCount_

int CompiledSimulation::basicBlockCount_

Number of basic blocks gone through.

Definition at line 164 of file CompiledSimulation.hh.

◆ bbExecCounts_

ClockCycleCount* CompiledSimulation::bbExecCounts_

Basic block execution counts in a C style table.

Definition at line 192 of file CompiledSimulation.hh.

Referenced by CompiledSimulation(), moveExecutionCount(), and ~CompiledSimulation().

◆ conflictDetected_

bool CompiledSimulation::conflictDetected_

A flag for FU conflict detection.

Definition at line 184 of file CompiledSimulation.hh.

◆ cycleCount_

ClockCycleCount CompiledSimulation::cycleCount_

Number of cycles simulated so far.

Definition at line 162 of file CompiledSimulation.hh.

Referenced by cycleCount(), runUntil(), and step().

◆ cyclesToSimulate_

ClockCycleCount CompiledSimulation::cyclesToSimulate_

Number of cycles left to simulate until the execution returns.

Definition at line 172 of file CompiledSimulation.hh.

Referenced by run(), runUntil(), and step().

◆ dynamicCompilation_

bool CompiledSimulation::dynamicCompilation_

protected

Is this a dynamic compiled simulation?

Definition at line 236 of file CompiledSimulation.hh.

Referenced by getSimulateFunction().

◆ entryAddress_

const InstructionAddress CompiledSimulation::entryAddress_

protected

Entry address of the program.

Definition at line 245 of file CompiledSimulation.hh.

◆ isFinished_

bool CompiledSimulation::isFinished_

Is the simulation finished?

Definition at line 176 of file CompiledSimulation.hh.

Referenced by isFinished(), run(), runUntil(), and step().

◆ jumpTarget_

InstructionAddress CompiledSimulation::jumpTarget_

The jump target. Allows jumping to different addresses in the code.

Definition at line 166 of file CompiledSimulation.hh.

Referenced by runUntil().

◆ jumpTargetFunc_

SimulateFunction CompiledSimulation::jumpTargetFunc_

Next jump target as a function pointer" << endl.

Definition at line 181 of file CompiledSimulation.hh.

◆ lastExecutedInstruction_

InstructionAddress CompiledSimulation::lastExecutedInstruction_

Last executed instruction.

Definition at line 170 of file CompiledSimulation.hh.

Referenced by cycleEnd(), and lastExecutedInstruction().

◆ lastInstruction_

const InstructionAddress CompiledSimulation::lastInstruction_

protected

Last instruction of the program.

Definition at line 247 of file CompiledSimulation.hh.

◆ machine_

const TTAMachine::Machine& CompiledSimulation::machine_

protected

The simulated machine.

Definition at line 242 of file CompiledSimulation.hh.

Referenced by CompiledSimulation(), FUMemory(), functionUnit(), FUPortValue(), immediateUnitRegisterValue(), and registerFileValue().

◆ moveExecCounts_

ClockCycleCount* CompiledSimulation::moveExecCounts_

Move execution counts in a C style table.

Definition at line 189 of file CompiledSimulation.hh.

Referenced by CompiledSimulation(), moveExecutionCount(), and ~CompiledSimulation().

◆ operationPool_

OperationPool CompiledSimulation::operationPool_

The operation pool.

Definition at line 179 of file CompiledSimulation.hh.

◆ pimpl_

CompiledSimulationPimpl* CompiledSimulation::pimpl_

private

Private implementation in a separate source file.

Definition at line 256 of file CompiledSimulation.hh.

Referenced by addSymbol(), basicBlockStart(), compileAndLoadFunction(), CompiledSimulation(), cycleEnd(), frontend(), FUPortValue(), getSimulateFunction(), getSymbolValue(), immediateUnitRegisterValue(), memorySystem(), moveExecutionCount(), registerFileValue(), resizeJumpTable(), setJumpTargetFunction(), and ~CompiledSimulation().

◆ procedureBBRelations_

ProcedureBBRelations& CompiledSimulation::procedureBBRelations_

protected

A struct for finding out procedure begins from procedure's basic blocks.

Definition at line 239 of file CompiledSimulation.hh.

Referenced by compileAndLoadFunction().

◆ programCounter_

InstructionAddress CompiledSimulation::programCounter_

The program counter. i.e. which address the simulation is currently at.

Definition at line 168 of file CompiledSimulation.hh.

Referenced by cycleEnd(), and programCounter().

◆ stopRequested_

bool CompiledSimulation::stopRequested_

Should the simulation stop or not?

Definition at line 174 of file CompiledSimulation.hh.

Referenced by requestToStop(), run(), runUntil(), step(), and stopRequested().

The documentation for this class was generated from the following files:

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ CompiledSimulation() [1/2]

◆ ~CompiledSimulation()

◆ CompiledSimulation() [2/2]

Member Function Documentation

◆ addFUResult() [1/2]

◆ addFUResult() [2/2]

◆ addSymbol()

◆ basicBlockStart()

◆ clearFUResults()

◆ compileAndLoadFunction()

◆ cycleCount()

◆ cycleEnd()

◆ frontend()

◆ FUMemory()

◆ functionUnit()

◆ FUPortValue()

◆ FUResult()

◆ getSimulateFunction()

◆ getSymbolValue()

◆ haltSimulation()

◆ immediateUnitRegisterValue()

◆ isFinished()

◆ lastExecutedInstruction()

◆ memorySystem()

◆ moveExecutionCount()

◆ msg()

◆ next()

◆ operator=()

◆ programCounter()

◆ registerFileValue()

◆ requestToStop()

◆ resizeJumpTable()

◆ run()

◆ runUntil()

◆ setJumpTargetFunction()

◆ simulateCycle()

◆ step()

◆ stopRequested()

Member Data Documentation

◆ basicBlockCount_

◆ bbExecCounts_

◆ conflictDetected_

◆ cycleCount_

◆ cyclesToSimulate_

◆ dynamicCompilation_

◆ entryAddress_

◆ isFinished_

◆ jumpTarget_

◆ jumpTargetFunc_

◆ lastExecutedInstruction_

◆ lastInstruction_

◆ machine_

◆ moveExecCounts_

◆ operationPool_

◆ pimpl_

◆ procedureBBRelations_

◆ programCounter_

◆ stopRequested_