#include <SmartHWOperation.hh>

Inheritance diagram for SmartHWOperation:

Collaboration diagram for SmartHWOperation:

Public Member Functions
	SmartHWOperation (const Operation &operation, UniversalFunctionUnit &parent)

virtual	~SmartHWOperation ()

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

TTAMachine::FUPort *	port (int operand) const

UniversalFunctionUnit *	parentUnit () const

virtual void	bindPort (int operand, const TTAMachine::FUPort &port)

virtual void	unbindPort (const TTAMachine::FUPort &port)

virtual void	loadState (const ObjectState *state)

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

	HWOperation (const ObjectState *state, FunctionUnit &parent)

	~HWOperation ()

const std::string &	name () const

FunctionUnit *	parentUnit () const

ExecutionPipeline *	pipeline () const

int	latency () const

int	latency (int output) const

int	slack (int input) const

int	operandCount () const

bool	isBound (const FUPort &port) const

bool	isBound (int operand) const

int	io (const FUPort &port) const

int	numberOfInputs () const

int	numberOfOutputs () const

virtual ObjectState *	saveState () const

Public Member Functions inherited from Serializable
virtual	~Serializable ()

Private Member Functions
bool	otherMandatoryInputsBound (int operand) const

Private Attributes
const Operation &	operation_
	The operation represented by this SmartHWOperation instance. More...

bool	is32BitOperation_
	Tells whether this operation has 32 bits wide operands. More...

Additional Inherited Members
Static Public Attributes inherited from TTAMachine::HWOperation
static const std::string	OSNAME_OPERATION = "operation"
	ObjectState name for HWOperation. More...

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

static const std::string	OSNAME_OPERAND_BINDING = "binding"
	ObjectState name for an operand binding. More...

static const std::string	OSKEY_OPERAND = "operand"
	ObjectState attribute key for operand index. More...

static const std::string	OSKEY_PORT = "port"
	ObjectState attribute key for port name. More...

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

virtual	~SubComponent ()

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

virtual	~MachinePart ()

Detailed Description

Represents an operation in a function unit. The smart operation automatically creates operand bindings on demand. This kind of operations are used in UniversalFunctionUnit. The last operand requested is bound to the operation code setting port.

Definition at line 47 of file SmartHWOperation.hh.

Constructor & Destructor Documentation

◆ SmartHWOperation()

SmartHWOperation::SmartHWOperation	(	const Operation &	operation,
		UniversalFunctionUnit &	parent
	)

The constructor.

Creates the pipeline automatically.

Parameters

operation	The operation to be constructed.
parent	The parent unit of the operation.

Exceptions

ComponentAlreadyExists	If there is already an operation by the same name in the given function unit.
InvalidName	If the given operation does not have a valid name.

Definition at line 54 of file SmartHWOperation.cc.

     : HWOperation(operation.name(), parent), operation_(operation) {
     is32BitOperation_ =
         UniversalFunctionUnit::is32BitOperation(operation.name());
  
     int inputs = operation.numberOfInputs();
     int outputs = operation.numberOfOutputs();
  
     // create pipeline
     ExecutionPipeline* pLine = pipeline();
     for (int operand = 1; operand <= inputs; operand++) {
         pLine->addPortRead(operand, 0, 1);
     }
     for (int operand = inputs + 1; operand <= inputs + outputs; operand++) {
         pLine->addPortWrite(operand, 0, 1);
     }
 }

References TTAMachine::ExecutionPipeline::addPortRead(), TTAMachine::ExecutionPipeline::addPortWrite(), UniversalFunctionUnit::is32BitOperation(), is32BitOperation_, Operation::name(), Operation::numberOfInputs(), Operation::numberOfOutputs(), and TTAMachine::HWOperation::pipeline().

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◆ ~SmartHWOperation()

SmartHWOperation::~SmartHWOperation ( )

virtual

The destructor.

Definition at line 76 of file SmartHWOperation.cc.

76 {

77 }

Member Function Documentation

◆ bindPort()

void SmartHWOperation::bindPort	(	int	operand,
		const TTAMachine::FUPort &	port
	)

virtual

Aborts the program. It is not allowed to bind ports manually. DO NOT CALL THIS METHOD!

Parameters

operand	Never used.
port	Never used.

Exceptions

IllegalRegistration	Never thrown.
ComponentAlreadyExists	Never thrown.
OutOfRange	Never thrown.

Reimplemented from TTAMachine::HWOperation.

Definition at line 205 of file SmartHWOperation.cc.

                                              {
     const string procName = "SmartHWOperation::bindPort";
     const string errorMsg =
         "Tried to bind port of SmartHWOperation manually!";
     Application::writeToErrorLog(__FILE__, __LINE__, procName, errorMsg);
     Application::abortProgram();
 }

References Application::abortProgram(), and Application::writeToErrorLog().

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◆ loadState()

void SmartHWOperation::loadState ( const ObjectState * state )

virtual

Aborts the program. It is not allowed to load state of SmartHWOperation from an ObjectState tree. DO NOT CALL THIS METHOD!

Parameters

state Never used.

Exceptions

ObjectStateLoadingException Never thrown.

Reimplemented from TTAMachine::HWOperation.

Definition at line 237 of file SmartHWOperation.cc.

                                               {
     const string procName = "SmartHWOperation::loadState";
     const string errorMsg =
         "Tried load state of SmartHWOperation from an ObjectState tree!";
     Application::writeToErrorLog(__FILE__, __LINE__, procName, errorMsg);
     Application::abortProgram();
 }

References Application::abortProgram(), and Application::writeToErrorLog().

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◆ otherMandatoryInputsBound()

bool SmartHWOperation::otherMandatoryInputsBound ( int operand ) const

private

Tells whether other input operands except the given one are bound to some port.

Parameters

operand The operand.

Returns: True if other inputs are bound, otherwise false.

Definition at line 253 of file SmartHWOperation.cc.

                                                              {
  
    assert(operand <= operation_.numberOfInputs());
  
    for (int opIndex = 1; opIndex <= operation_.numberOfInputs();
         opIndex++) {
        if (opIndex == operand) {
            continue;
        } else {
            if (HWOperation::port(opIndex) == NULL) {
                return false;
            }
        }
    }
  
    return true;
 }

References assert, Operation::numberOfInputs(), and operation_.

Referenced by port().

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◆ parentUnit()

UniversalFunctionUnit * SmartHWOperation::parentUnit ( ) const

Returns the parent unit of the operation.

Returns: The parent unit.

Definition at line 185 of file SmartHWOperation.cc.

                                    {
     FunctionUnit* parent = HWOperation::parentUnit();
     UniversalFunctionUnit* uFU =
         dynamic_cast<UniversalFunctionUnit*>(parent);
     assert(uFU != NULL);
     return uFU;
 }

References assert.

Referenced by port().

◆ port()

FUPort * SmartHWOperation::port ( int operand ) const

virtual

Returns the port bound to the given operand. If the given operand is not bound yet, it is automatically bound to a port.

The port to which the operand will be bound depends on the bindings of other operands. Input operands are bound to input ports and output operands to output ports, of course. If all the input operands are bound already except the given one, the given operand will be bound to the operation code setting port.

Parameters

operand The operand.

Returns: The port to which the operand is bound.

Reimplemented from TTAMachine::HWOperation.

Definition at line 110 of file SmartHWOperation.cc.

                                         {
  
     // if the operand is bound already, just return the port
     if (HWOperation::port(operand) != NULL) {
         return HWOperation::port(operand);
     }
  
     bool input = true;
  
     // check whether the operand is input or output operand
     if (operand > operation_.numberOfInputs() +
         operation_.numberOfOutputs()) {
         return NULL;
     } else if (operand > operation_.numberOfInputs()) {
         input = false;
     }
  
     int bitWidth = is32BitOperation_ ? 32 : 64;
     int portCount = parentUnit()->portCountWithWidth(bitWidth);
  
     if (input) {
         if (otherMandatoryInputsBound(operand)) {
             // bind to opcode port if other inputs are bound already
             FUPort* opcodePort;
             if (is32BitOperation_) {
                 opcodePort = 
                     static_cast<FunctionUnit*>(parentUnit())->operationPort(
                         UniversalFunctionUnit::OC_SETTING_PORT_32);
             } else {
                 opcodePort = 
                     static_cast<FunctionUnit*>(parentUnit())->operationPort(
                         UniversalFunctionUnit::OC_SETTING_PORT_64);
             }
             const_cast<SmartHWOperation*>(this)->
                 HWOperation::bindPort(operand, *opcodePort);
             return opcodePort;
  
         } else {
             // bind to a non-opcode input port otherwise
             for (int i = 0; i < portCount; i++) {
                 FUPort& port = parentUnit()->portWithWidth(i, bitWidth);
                 if (!isBound(port) && port.inputSocket() != NULL &&
                     !port.isOpcodeSetting()) {
                     const_cast<SmartHWOperation*>(this)->
                         HWOperation::bindPort(operand, port);
                     return &port;
                 }
             }
         }
  
     } else {
         // bind to some output port
         for (int i = 0; i < portCount; i++) {
             FUPort& port = parentUnit()->portWithWidth(i, bitWidth);
             if (!isBound(port) && port.outputSocket() != NULL) {
                 const_cast<SmartHWOperation*>(this)->
                     HWOperation::bindPort(operand, port);
                 return &port;
             }
         }
     }
  
     assert(false);
  
     // dummy return to avoid compilation warning
     return NULL;
 }

References assert, TTAMachine::Port::inputSocket(), is32BitOperation_, TTAMachine::HWOperation::isBound(), TTAMachine::FUPort::isOpcodeSetting(), Operation::numberOfInputs(), Operation::numberOfOutputs(), UniversalFunctionUnit::OC_SETTING_PORT_32, UniversalFunctionUnit::OC_SETTING_PORT_64, operation_, otherMandatoryInputsBound(), TTAMachine::Port::outputSocket(), parentUnit(), UniversalFunctionUnit::portCountWithWidth(), and UniversalFunctionUnit::portWithWidth().

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◆ setName()

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

virtual

Aborts the program. It is not allowed to set the name of SmartHWOperation. DO NOT CALL THIS METHOD!

Parameters

name	Never used.

Exceptions

ComponentAlreadyExists	Never thrown.
InvalidName	Never thrown.

Reimplemented from TTAMachine::HWOperation.

Definition at line 89 of file SmartHWOperation.cc.

                                           {
     const string procName = "SmartHWOperation::setName";
     const string errorMsg = "Tried to set name of SmartHWOperation!";
     Application::writeToErrorLog(__FILE__, __LINE__, procName, errorMsg);
     Application::abortProgram();
 }

References Application::abortProgram(), and Application::writeToErrorLog().

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◆ unbindPort()

void SmartHWOperation::unbindPort ( const TTAMachine::FUPort & port )

virtual

Aborts the program. It is not allowed to unbind ports manually. DO NOT CALL THIS METHOD!

Parameters

port	Never used.

Reimplemented from TTAMachine::HWOperation.

Definition at line 220 of file SmartHWOperation.cc.

                                           {
     const string procName = "SmartHWOperation::unbindPort";
     const string errorMsg =
         "Tried unbind port of SmartHWOperation manually!";
     Application::writeToErrorLog(__FILE__, __LINE__, procName, errorMsg);
     Application::abortProgram();
 }

References Application::abortProgram(), and Application::writeToErrorLog().

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Member Data Documentation

◆ is32BitOperation_

bool SmartHWOperation::is32BitOperation_

private

Tells whether this operation has 32 bits wide operands.

Definition at line 68 of file SmartHWOperation.hh.

Referenced by port(), and SmartHWOperation().

◆ operation_

const Operation& SmartHWOperation::operation_

private

The operation represented by this SmartHWOperation instance.

Definition at line 66 of file SmartHWOperation.hh.

Referenced by otherMandatoryInputsBound(), and port().

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

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SmartHWOperation()

◆ ~SmartHWOperation()

Member Function Documentation

◆ bindPort()

◆ loadState()

◆ otherMandatoryInputsBound()

◆ parentUnit()

◆ port()

◆ setName()

◆ unbindPort()

Member Data Documentation

◆ is32BitOperation_

◆ operation_