#include <ControlUnit.hh>

Inheritance diagram for TTAMachine::ControlUnit:

Collaboration diagram for TTAMachine::ControlUnit:

Public Member Functions
	ControlUnit (const std::string &name, int delaySlots, int globalGuardLatency)

	ControlUnit (const ObjectState *state)

virtual	~ControlUnit ()

virtual ControlUnit *	copy () const

virtual void	setMachine (Machine &mach)

virtual void	unsetMachine ()

int	delaySlots () const

void	setDelaySlots (int delaySlots)

int	globalGuardLatency () const

void	setGlobalGuardLatency (int latency)

int	specialRegisterPortCount () const

bool	hasSpecialRegisterPort (const std::string &name) const

SpecialRegisterPort *	specialRegisterPort (int index) const

SpecialRegisterPort *	specialRegisterPort (const std::string &name) const

void	setReturnAddressPort (const SpecialRegisterPort &port)

void	unsetReturnAddressPort ()

bool	hasReturnAddressPort () const

SpecialRegisterPort *	returnAddressPort () const

virtual ObjectState *	saveState () const

virtual void	loadState (const ObjectState *state)

Public Member Functions inherited from TTAMachine::FunctionUnit
	FunctionUnit (const std::string &name)

	FunctionUnit (const ObjectState *state)

virtual	~FunctionUnit ()

virtual void	setName (const std::string &name)

virtual BaseFUPort *	port (const std::string &name) const

virtual BaseFUPort *	port (int index) const

virtual int	operationPortCount () const

virtual bool	hasOperationPort (const std::string &name) const

virtual FUPort *	operationPort (const std::string &name) const

virtual FUPort *	operationPort (int index) const

virtual BaseFUPort *	triggerPort () const

virtual void	addOperation (HWOperation &operation)

virtual void	deleteOperation (HWOperation &operation)

virtual bool	hasOperation (const std::string &name) const

virtual bool	hasOperationLowercase (const std::string &name) const

virtual HWOperation *	operation (const std::string &name) const

virtual HWOperation *	operationLowercase (const std::string &name) const

virtual HWOperation *	operation (int index) const

virtual int	operationCount () const

virtual void	operationNames (TCETools::CIStringSet &opNames) const

virtual int	maxLatency () const

virtual void	addPipelineElement (PipelineElement &element)

virtual void	deletePipelineElement (PipelineElement &element)

virtual int	pipelineElementCount () const

virtual PipelineElement *	pipelineElement (int index) const

virtual bool	hasPipelineElement (const std::string &name) const

virtual PipelineElement *	pipelineElement (const std::string &name) const

virtual AddressSpace *	addressSpace () const

virtual void	setAddressSpace (AddressSpace *as)

virtual bool	hasAddressSpace () const

virtual void	cleanup (const std::string &resource)

virtual bool	isArchitectureEqual (const FunctionUnit *fu, const bool checkPortWidths=true) const

bool	needsConflictDetection () const

virtual int	orderNumber () const

virtual void	setOrderNumber (int)

Public Member Functions inherited from TTAMachine::Unit
virtual	~Unit ()

virtual bool	hasPort (const std::string &name) const

virtual int	portCount () const

virtual int	outputPortCount (bool countBidir=false) const

virtual int	inputPortCount (bool countBidir=false) const

virtual int	bidirPortCount () const

Public Member Functions inherited from TTAMachine::Component
virtual	~Component ()

virtual TCEString	name () const

virtual Machine *	machine () const

virtual void	ensureRegistration (const Component &component) const

virtual bool	isRegistered () const

Public Member Functions inherited from Serializable
virtual	~Serializable ()

Static Public Attributes
static const std::string	OSNAME_CONTROL_UNIT = "control_unit"
	ObjectState name for ControlUnit. More...

static const std::string	OSKEY_DELAY_SLOTS = "d_slots"
	ObjectState attribute key for the number of delay slots. More...

static const std::string	OSKEY_GUARD_LATENCY = "g_latency"
	ObjectState attribute key for the global guard latency. More...

static const std::string	OSKEY_RA_PORT = "ra_port"
	ObjectState attribute key for the name of the return address port. More...

Static Public Attributes inherited from TTAMachine::FunctionUnit
static const std::string	OSNAME_FU = "fu"
	ObjectState name for function unit. More...

static const std::string	OSKEY_AS = "as"
	ObjectState attribute key for name of the address space. More...

static const std::string	OSKEY_ORDER_NUMBER = "order_no"
	ObjectState attribute key for FU order number name. More...

Static Public Attributes inherited from TTAMachine::Unit
static const std::string	OSNAME_UNIT = "unit"
	ObjectState name for Unit. More...

Static Public Attributes inherited from TTAMachine::Component
static const std::string	OSNAME_COMPONENT = "component"
	ObjectState name for component. More...

static const std::string	OSKEY_NAME = "name"
	ObjectState attribute key for the name of the component. More...

Protected Member Functions
virtual void	removePort (Port &port)

Protected Member Functions inherited from TTAMachine::FunctionUnit
void	unsetMachineDerived ()

Protected Member Functions inherited from TTAMachine::Unit
	Unit (const std::string &name)

	Unit (const ObjectState *state)

Protected Member Functions inherited from TTAMachine::Component
	Component (const std::string &name)

	Component (const ObjectState *state)

void	internalSetMachine (Machine &machine)

void	internalUnsetMachine ()

Protected Member Functions inherited from TTAMachine::MachinePart
	MachinePart ()

virtual	~MachinePart ()

Private Member Functions
void	loadStateWithoutReferences (const ObjectState *state)

Static Private Member Functions
static bool	hasLocalGuardLatencyOfZero (const Machine &machine)

Private Attributes
int	delaySlots_
	Number of delay instruction slots on the transport pipeline. More...

int	globalGuardLatency_
	The global guard latency. More...

SpecialRegisterPort *	raPort_
	The return address port. More...

Detailed Description

Represents the global control unit in the machine.

Definition at line 50 of file ControlUnit.hh.

Constructor & Destructor Documentation

◆ ControlUnit() [1/2]

TTAMachine::ControlUnit::ControlUnit	(	const std::string &	name,
		int	delaySlots,
		int	globalGuardLatency
	)

Constructor.

Parameters

name	Name of the control unit.
delaySlots	Number of delay instruction slots of the transport pipeline.
globalGuardLatency	The global guard latency.

Exceptions

OutOfRange	If some of the given values is out of valid range.
InvalidName	If the given name is not a valid component name.

Definition at line 61 of file ControlUnit.cc.

     : FunctionUnit(name),
       delaySlots_(delaySlots),
       globalGuardLatency_(0),
       raPort_(NULL) {
     setDelaySlots(delaySlots);
     setGlobalGuardLatency(globalGuardLatency);
 }

References delaySlots(), globalGuardLatency(), setDelaySlots(), and setGlobalGuardLatency().

Referenced by copy().

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◆ ControlUnit() [2/2]

TTAMachine::ControlUnit::ControlUnit ( const ObjectState * state )

Constructor.

Loads the state of the control unit from the given ObjectState instance. Does not load references to other components.

Parameters

state The ObjectState instance from which the name is taken.

Exceptions

ObjectStateLoadingException If the given ObjectState instance is invalid.

Definition at line 81 of file ControlUnit.cc.

     : FunctionUnit(state),
       delaySlots_(0),
       globalGuardLatency_(0),
       raPort_(NULL) {
     loadStateWithoutReferences(state);
 }

References loadStateWithoutReferences().

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◆ ~ControlUnit()

TTAMachine::ControlUnit::~ControlUnit ( )

virtual

Destructor.

Definition at line 92 of file ControlUnit.cc.

                           {
     unsetMachine();
 }

References unsetMachine().

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Member Function Documentation

◆ copy()

ControlUnit * TTAMachine::ControlUnit::copy ( ) const

virtual

Copies the instance.

Current FunctionUnit state is copied to a new FunctionUnit object.

Returns: Copy of the instance.

Reimplemented from TTAMachine::FunctionUnit.

Definition at line 105 of file ControlUnit.cc.

                         {
  
     return new ControlUnit(saveState());
 }

References ControlUnit(), and saveState().

Referenced by ADFCombiner::addFunctionUnits().

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◆ delaySlots()

int TTAMachine::ControlUnit::delaySlots ( ) const

◆ globalGuardLatency()

int TTAMachine::ControlUnit::globalGuardLatency ( ) const

Referenced by MachineStateBuilder::buildMachineState(), CompiledSimCodeGenerator::CompiledSimCodeGenerator(), ControlUnit(), TTAProgram::Move::guardLatency(), BFOptimization::jumpGuardAvailableCycle(), SimulatorFrontend::loadMachine(), TTAMachine::RegisterGuard::loadState(), MachineInfo::longestGuardLatency(), CompiledSimCodeGenerator::maxLatency(), TTAMachine::RegisterGuard::RegisterGuard(), SequentialScheduler::scheduleMove(), TTAMachine::RegisterFile::setGuardLatency(), setMachine(), and DefaultDecoderGenerator::verifyCompatibility().

◆ hasLocalGuardLatencyOfZero()

bool TTAMachine::ControlUnit::hasLocalGuardLatencyOfZero ( const Machine & machine )

staticprivate

Tells whether the given machine has a guard that reads a register with local guard latency of zero.

Parameters

machine The machine.

Returns: True if the machine has the guard, otherwise false.

Definition at line 411 of file ControlUnit.cc.

                                                               {
     Machine::BusNavigator busNav = machine.busNavigator();
     for (int i = 0; i < busNav.count(); i++) {
         Bus* bus = busNav.item(i);
         for (int i = 0; i < bus->guardCount(); i++) {
             Guard* guard = bus->guard(i);
             RegisterGuard* regGuard = 
                 dynamic_cast<RegisterGuard*>(guard);
             if (regGuard != NULL) {
                 const RegisterFile* rf = regGuard->registerFile();
                 if (rf->guardLatency() == 0) {
                     return true;
                 }
             }
         }
     }
     return false;
 }

References TTAMachine::Machine::busNavigator(), TTAMachine::Machine::Navigator< ComponentType >::count(), TTAMachine::Bus::guard(), TTAMachine::Bus::guardCount(), TTAMachine::RegisterFile::guardLatency(), TTAMachine::Machine::Navigator< ComponentType >::item(), TTAMachine::Component::machine(), and TTAMachine::RegisterGuard::registerFile().

Referenced by setGlobalGuardLatency(), and setMachine().

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◆ hasReturnAddressPort()

bool TTAMachine::ControlUnit::hasReturnAddressPort ( ) const

Tells whether the control unit has a return address port.

Returns: True if a return address port exists, otherwise false.

Definition at line 295 of file ControlUnit.cc.

                                         {
     return raPort_ != NULL;
 }

References raPort_.

Referenced by DefaultICGenerator::addICToNetlist(), MachineStateBuilder::buildMachineState(), MachineValidator::checkIMemAddrWidth(), MachineValidator::checkRAPortHasSameWidthAsPCPort(), MachineValidator::checkReturnAddressPort(), TTAProgram::TPEFProgramFactory::findPort(), TTAProgram::TPEFResourceUpdater::functionUnitPort(), ProGe::ProcessorGenerator::iMemAddressWidth(), saveState(), and DefaultDecoderGenerator::writeControlRegisterMappings().

◆ hasSpecialRegisterPort()

bool TTAMachine::ControlUnit::hasSpecialRegisterPort ( const std::string & name ) const

Tells whether the control unit has a special register port of the given name.

Returns: True if the control unit has the port, otherwise false.

Definition at line 197 of file ControlUnit.cc.

                                                                {
     return hasPort(name) && !hasOperationPort(name);
 }

References TTAMachine::FunctionUnit::hasOperationPort(), TTAMachine::Unit::hasPort(), and TTAMachine::Component::name().

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◆ loadState()

void TTAMachine::ControlUnit::loadState ( const ObjectState * state )

virtual

Loads its state from the given ObjectState instance.

Parameters

state The ObjectState instance.

Exceptions

ObjectStateLoadingException If the given ObjectState instance invalid or if connections to other machine parts cannot be made.

Reimplemented from TTAMachine::FunctionUnit.

Definition at line 351 of file ControlUnit.cc.

                                                {
     FunctionUnit::loadState(state);
     loadStateWithoutReferences(state);
 }

References TTAMachine::FunctionUnit::loadState(), and loadStateWithoutReferences().

Referenced by TTAMachine::Machine::loadState().

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◆ loadStateWithoutReferences()

void TTAMachine::ControlUnit::loadStateWithoutReferences ( const ObjectState * state )

private

Loads the state of the control unit without references to other components.

Parameters

state The ObjectState instance from which the state is loaded.

Exceptions

ObjectStateLoadingException If an error occurs while loading the state.

Definition at line 380 of file ControlUnit.cc.

                                                                 {
     const string procName = "ControlUnit::loadStateWithoutReferences";
  
     if (state->name() != OSNAME_CONTROL_UNIT) {
         throw ObjectStateLoadingException(__FILE__, __LINE__, procName);
     }
  
     try {
         setDelaySlots(state->intAttribute(OSKEY_DELAY_SLOTS));
         setGlobalGuardLatency(state->intAttribute(OSKEY_GUARD_LATENCY));
         if (state->hasAttribute(OSKEY_RA_PORT)) {
             string portName = state->stringAttribute(OSKEY_RA_PORT);
             setReturnAddressPort(*specialRegisterPort(portName));
         } else {
             unsetReturnAddressPort();
         }
  
     } catch (Exception& e) {
         throw ObjectStateLoadingException(__FILE__, __LINE__, procName,
                                           e.errorMessage());
     }
 }

References Exception::errorMessage(), ObjectState::hasAttribute(), ObjectState::intAttribute(), ObjectState::name(), OSKEY_DELAY_SLOTS, OSKEY_GUARD_LATENCY, OSKEY_RA_PORT, OSNAME_CONTROL_UNIT, setDelaySlots(), setGlobalGuardLatency(), setReturnAddressPort(), specialRegisterPort(), ObjectState::stringAttribute(), and unsetReturnAddressPort().

Referenced by ControlUnit(), and loadState().

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◆ removePort()

void TTAMachine::ControlUnit::removePort ( Port & port )

protectedvirtual

Removes the given port from the control unit and unsets the binding of return address port if necessary.

Parameters

port	The port to be removed.

Reimplemented from TTAMachine::Unit.

Definition at line 363 of file ControlUnit.cc.

                                   {
     if (&port == raPort_) {
         unsetReturnAddressPort();
     }
     FunctionUnit::removePort(port);
 }

References TTAMachine::FunctionUnit::port(), raPort_, TTAMachine::Unit::removePort(), and unsetReturnAddressPort().

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◆ returnAddressPort()

SpecialRegisterPort * TTAMachine::ControlUnit::returnAddressPort ( ) const

Returns the return address port.

Returns: The return address port.

Exceptions

InstanceNotFound If there is no return address port.

Definition at line 307 of file ControlUnit.cc.

                                      {
     if (raPort_ != NULL) {
         return raPort_;
     } else {
         const string procName = "ControlUnit::returnAddressPort";
         throw InstanceNotFound(__FILE__, __LINE__, procName);
     }
 }

References raPort_.

Referenced by RegisterCopyAdder::addConnectionRegisterCopies(), ProGe::NetlistGenerator::addGCUToNetlist(), DefaultICGenerator::addICToNetlist(), ProGe::RV32MicroCodeGenerator::addIPorts(), ProGe::RV32MicroCodeGenerator::addUJPorts(), OutputFUBroker::assign(), InputFUBroker::assign(), MachineStateBuilder::buildMachineState(), MachineConnectivityCheck::busConnectedToDestination(), MachineValidator::checkIMemAddrWidth(), MachineValidator::checkRAPortHasSameWidthAsPCPort(), DefaultDecoderGenerator::completeDecoderBlock(), TTAProgram::CodeGenerator::createTerminalFUPort(), TTAProgram::TPEFProgramFactory::findPort(), MachineConnectivityCheck::findPossibleDestinationPorts(), MachineConnectivityCheck::findPossibleSourcePorts(), TTAProgram::TPEFResourceUpdater::functionUnitPort(), CallsToJumps::handleControlFlowGraph(), ProGe::ProcessorGenerator::iMemAddressWidth(), MachineConnectivityCheck::raConnected(), ProGe::ProGeUI::readImemParameters(), CompiledSimSymbolGenerator::returnAddressSymbol(), saveState(), SimulatorFrontend::state(), and DefaultDecoderGenerator::writeControlRegisterMappings().

◆ saveState()

ObjectState * TTAMachine::ControlUnit::saveState ( ) const

virtual

Saves the contents to an ObjectState tree.

Returns: The newly created ObjectState tree.

Reimplemented from TTAMachine::FunctionUnit.

Definition at line 322 of file ControlUnit.cc.

                              {
  
     ObjectState* cUnit = FunctionUnit::saveState();
     cUnit->setName(OSNAME_CONTROL_UNIT);
  
     // set delay slots
     cUnit->setAttribute(OSKEY_DELAY_SLOTS, delaySlots_);
  
     // set global guard latency
     cUnit->setAttribute(OSKEY_GUARD_LATENCY, globalGuardLatency_);
  
     // set return address port
     if (hasReturnAddressPort()) {
         cUnit->setAttribute(OSKEY_RA_PORT, returnAddressPort()->name());
     }
  
     return cUnit;
 }

References delaySlots_, globalGuardLatency_, hasReturnAddressPort(), TTAMachine::Component::name(), OSKEY_DELAY_SLOTS, OSKEY_GUARD_LATENCY, OSKEY_RA_PORT, OSNAME_CONTROL_UNIT, returnAddressPort(), TTAMachine::FunctionUnit::saveState(), ObjectState::setAttribute(), and ObjectState::setName().

Referenced by copy(), and TTAMachine::Machine::saveState().

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◆ setDelaySlots()

void TTAMachine::ControlUnit::setDelaySlots ( int delaySlots )

Definition at line 145 of file ControlUnit.cc.

                                          {
     if (delaySlots < 0) {
         throw OutOfRange(__FILE__, __LINE__, __func__);
     }
     delaySlots_ = delaySlots;
 }

References __func__, delaySlots(), and delaySlots_.

Referenced by ControlUnit(), and loadStateWithoutReferences().

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◆ setGlobalGuardLatency()

void TTAMachine::ControlUnit::setGlobalGuardLatency ( int latency )

Sets the global guard latency.

Parameters

latency The new latency.

Exceptions

OutOfRange If the given latency is negative.

Definition at line 159 of file ControlUnit.cc.

                                               {
     if (latency < 0) {
         throw OutOfRange(__FILE__, __LINE__, __func__);
     }
  
     // if latency is zero, there must not be a guard term that reads a 
     // registr of a register file with local guard latency of zero
     if (latency == 0 && isRegistered()) {
         if (hasLocalGuardLatencyOfZero(*machine())) {
             MOMTextGenerator textGen;
             boost::format text = textGen.text(
                 MOMTextGenerator::TXT_INVALID_GUARD_LATENCY);
             throw OutOfRange(
                 __FILE__, __LINE__, __func__, text.str());
         }
     }
  
     globalGuardLatency_ = latency;
 }

References __func__, globalGuardLatency_, hasLocalGuardLatencyOfZero(), TTAMachine::Component::isRegistered(), TTAMachine::Component::machine(), Texts::TextGenerator::text(), and MOMTextGenerator::TXT_INVALID_GUARD_LATENCY.

Referenced by ControlUnit(), loadStateWithoutReferences(), TTAMachine::RegisterFile::setGuardLatency(), and setMachine().

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◆ setMachine()

void TTAMachine::ControlUnit::setMachine ( Machine & mach )

virtual

Attaches the control unit to machine.

Parameters

mach	The machine.

Exceptions

ComponentAlreadyExists If the given machine already has a global control unit.

Reimplemented from TTAMachine::Unit.

Definition at line 119 of file ControlUnit.cc.

                                      {
     // if global guard latency is zero, there cannot be a register guard
     // that reads a register of local guard latency zero
     if (globalGuardLatency() == 0 && hasLocalGuardLatencyOfZero(mach)) {
         setGlobalGuardLatency(1);
     }   
  
     internalSetMachine(mach);
     mach.setGlobalControl(*this);
 }

References globalGuardLatency(), hasLocalGuardLatencyOfZero(), TTAMachine::Component::internalSetMachine(), TTAMachine::Machine::setGlobalControl(), and setGlobalGuardLatency().

Referenced by AddGCUCmd::Do(), PasteComponentCmd::Do(), and TTAMachine::Machine::setGlobalControl().

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◆ setReturnAddressPort()

void TTAMachine::ControlUnit::setReturnAddressPort ( const SpecialRegisterPort & port )

Binds the given port to return address port.

If there is another port bound to return address port already, unbinds it.

Parameters

port	The port to be bound.

Exceptions

IllegalRegistration If the given port is not a port of this control unit.

Definition at line 271 of file ControlUnit.cc.

                                                                  {
     if (port.parentUnit() != this) {
         const string procName = "ControlUnit::setReturnAddressPort";
         throw IllegalRegistration(__FILE__, __LINE__, procName);
     }
  
     raPort_ = const_cast<SpecialRegisterPort*>(&port);
 }

References TTAMachine::BaseFUPort::parentUnit(), TTAMachine::FunctionUnit::port(), and raPort_.

Referenced by UniversalMachine::construct(), AddGCUCmd::Do(), CostEstimator::ICDecoderEstimatorPlugin::generateControlUnit(), and loadStateWithoutReferences().

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◆ specialRegisterPort() [1/2]

SpecialRegisterPort * TTAMachine::ControlUnit::specialRegisterPort ( const std::string & name ) const

Returns a special register port by the given name.

Parameters

name	Name of the port.

Returns: A special register port.

Exceptions

InstanceNotFound If a special register port does not exist by the given name.

Definition at line 245 of file ControlUnit.cc.

                                                             {
     const string procName = "ControlUnit::specialRegisterPort";
  
     if (!hasPort(name)) {
         throw InstanceNotFound(
             __FILE__, __LINE__, procName, "Port not found: " + name);
     }
  
     Port* port = this->port(name);
     SpecialRegisterPort* srPort = dynamic_cast<SpecialRegisterPort*>(port);
     if (srPort == NULL) {
         throw InstanceNotFound(__FILE__, __LINE__, procName);
     }
     return srPort;
 }

References TTAMachine::Unit::hasPort(), TTAMachine::Component::name(), and TTAMachine::FunctionUnit::port().

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◆ specialRegisterPort() [2/2]

SpecialRegisterPort * TTAMachine::ControlUnit::specialRegisterPort ( int index ) const

Returns a special register port by the given index.

Parameters

index The index.

Returns: A special register port.

Exceptions

OutOfRange If the given index is less than 0 or greater or equal to the number of special register ports.

Definition at line 211 of file ControlUnit.cc.

                                                 {
     const string procName = "ControlUnit::specialRegisterPort";
  
     if (index < 0) {
         throw OutOfRange(__FILE__, __LINE__, procName);
     }
  
     int portCount = this->portCount();
     int srPortCount(-1);
  
     for (int i = 0; i < portCount; i++) {
         BaseFUPort* port = this->port(i);
         SpecialRegisterPort* srPort =
             dynamic_cast<SpecialRegisterPort*>(port);
         if (srPort != NULL) {
             srPortCount++;
             if (srPortCount == index) {
                 return srPort;
             }
         }
     }
  
     throw OutOfRange(__FILE__, __LINE__, procName);
 }

References TTAMachine::FunctionUnit::port(), and TTAMachine::Unit::portCount().

Referenced by FullyConnectedCheck::check(), FullyConnectedCheck::connectControlUnit(), GCUFactory::createEditPart(), CompiledSimCodeGenerator::generateHeaderAndMainCode(), and loadStateWithoutReferences().

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◆ specialRegisterPortCount()

int TTAMachine::ControlUnit::specialRegisterPortCount ( ) const

Returns the number of special register ports in the control unit.

Returns: The number of special register ports.

Definition at line 185 of file ControlUnit.cc.

                                             {
     return portCount() - operationPortCount();
 }

References TTAMachine::FunctionUnit::operationPortCount(), and TTAMachine::Unit::portCount().

Referenced by FullyConnectedCheck::check(), FullyConnectedCheck::connectControlUnit(), GCUFactory::createEditPart(), and CompiledSimCodeGenerator::generateHeaderAndMainCode().

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◆ unsetMachine()

void TTAMachine::ControlUnit::unsetMachine ( )

virtual

Detaches the control unit from machine.

Reimplemented from TTAMachine::FunctionUnit.

Definition at line 134 of file ControlUnit.cc.

                           {
     if (!isRegistered()) {
         return;
     } else {
         Machine* mach = machine();
         unsetMachineDerived();
         mach->unsetGlobalControl();
     }
 }

References TTAMachine::Component::isRegistered(), TTAMachine::Component::machine(), TTAMachine::Machine::unsetGlobalControl(), and TTAMachine::FunctionUnit::unsetMachineDerived().

Referenced by TTAMachine::Machine::unsetGlobalControl(), and ~ControlUnit().

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◆ unsetReturnAddressPort()

void TTAMachine::ControlUnit::unsetReturnAddressPort ( )

Unbinds the return address port if one exists.

Definition at line 284 of file ControlUnit.cc.

                                     {
     raPort_ = NULL;
 }

References raPort_.

Referenced by loadStateWithoutReferences(), and removePort().

Member Data Documentation

◆ delaySlots_

int TTAMachine::ControlUnit::delaySlots_

private

Number of delay instruction slots on the transport pipeline.

Definition at line 98 of file ControlUnit.hh.

Referenced by saveState(), and setDelaySlots().

◆ globalGuardLatency_

int TTAMachine::ControlUnit::globalGuardLatency_

private

The global guard latency.

Definition at line 101 of file ControlUnit.hh.

Referenced by saveState(), and setGlobalGuardLatency().

◆ OSKEY_DELAY_SLOTS

const string TTAMachine::ControlUnit::OSKEY_DELAY_SLOTS = "d_slots"

static

ObjectState attribute key for the number of delay slots.

Definition at line 84 of file ControlUnit.hh.

Referenced by loadStateWithoutReferences(), and saveState().

◆ OSKEY_GUARD_LATENCY

const string TTAMachine::ControlUnit::OSKEY_GUARD_LATENCY = "g_latency"

static

ObjectState attribute key for the global guard latency.

Definition at line 86 of file ControlUnit.hh.

Referenced by loadStateWithoutReferences(), and saveState().

◆ OSKEY_RA_PORT

const string TTAMachine::ControlUnit::OSKEY_RA_PORT = "ra_port"

static

ObjectState attribute key for the name of the return address port.

Definition at line 88 of file ControlUnit.hh.

Referenced by loadStateWithoutReferences(), and saveState().

◆ OSNAME_CONTROL_UNIT

const string TTAMachine::ControlUnit::OSNAME_CONTROL_UNIT = "control_unit"

static

ObjectState name for ControlUnit.

Definition at line 82 of file ControlUnit.hh.

Referenced by TTAMachine::Machine::loadState(), loadStateWithoutReferences(), and saveState().

◆ raPort_

SpecialRegisterPort* TTAMachine::ControlUnit::raPort_

private

The return address port.

Definition at line 103 of file ControlUnit.hh.

Referenced by hasReturnAddressPort(), removePort(), returnAddressPort(), setReturnAddressPort(), and unsetReturnAddressPort().

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

Public Member Functions

Static Public Attributes

Protected Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ControlUnit() [1/2]

◆ ControlUnit() [2/2]

◆ ~ControlUnit()

Member Function Documentation

◆ copy()

◆ delaySlots()

◆ globalGuardLatency()

◆ hasLocalGuardLatencyOfZero()

◆ hasReturnAddressPort()

◆ hasSpecialRegisterPort()

◆ loadState()

◆ loadStateWithoutReferences()

◆ removePort()

◆ returnAddressPort()

◆ saveState()

◆ setDelaySlots()

◆ setGlobalGuardLatency()

◆ setMachine()

◆ setReturnAddressPort()

◆ specialRegisterPort() [1/2]

◆ specialRegisterPort() [2/2]

◆ specialRegisterPortCount()

◆ unsetMachine()

◆ unsetReturnAddressPort()

Member Data Documentation

◆ delaySlots_

◆ globalGuardLatency_

◆ OSKEY_DELAY_SLOTS

◆ OSKEY_GUARD_LATENCY

◆ OSKEY_RA_PORT

◆ OSNAME_CONTROL_UNIT

◆ raPort_