#include <ReservationTable.hh>

Inheritance diagram for ReservationTable:

Collaboration diagram for ReservationTable:

Public Types
typedef int	ResourceID

Public Member Functions
	ReservationTable (const TTAMachine::FunctionUnit &fu)

	ReservationTable (const TTAMachine::HWOperation &operation)

virtual	~ReservationTable ()

void	init (const TTAMachine::FunctionUnit &fu)

bool	conflictsWith (const ReservationTable &anotherReservationTable, int cycle) const

void	issueOperation (ReservationTable &anotherReservationTable)

void	advanceCycle ()

bool	isReserved (ResourceID resource, int cycle) const

bool	conflictsWith (const BitMatrix &another) const

Public Member Functions inherited from BitMatrix
	BitMatrix (int width, int height, bool initialValue)

	BitMatrix (const BitMatrix &another)

virtual	~BitMatrix ()

bool	bitAt (int column, int row) const

void	setBit (int column, int row, bool value)

void	setAllToZero ()

void	setAllToOne ()

void	shiftLeft ()

void	orWith (const BitMatrix &another)

bool	conflictsWith (const BitMatrix &another) const

int	rowCount () const

int	columnCount () const

std::string	toString () const

std::string	toDotString () const

bool	operator== (const BitMatrix &other) const

bool	operator< (const BitMatrix &rightHand) const

Detailed Description

Models pipeline resources using a Conventional Reservation Table (CRT).

An efficient implementation to avoid all kinds of function overheads etc. All simulation operations can be done by calling inline methods.

Definition at line 49 of file ReservationTable.hh.

Member Typedef Documentation

◆ ResourceID

typedef int ReservationTable::ResourceID

Definition at line 52 of file ReservationTable.hh.

Constructor & Destructor Documentation

◆ ReservationTable() [1/2]

ReservationTable::ReservationTable ( const TTAMachine::FunctionUnit & fu )

Builds an empty reservation table of given width for the given function unit.

Parameters

fu	The function unit of which resources to build the reservation table of.
cycleCount	The count of cycle columns.

Definition at line 51 of file ReservationTable.cc.

                                                                    :
     BitMatrix(
         fu.maxLatency(), 
         fu.operationPortCount() + fu.pipelineElementCount(),
         false) {
 }

◆ ReservationTable() [2/2]

ReservationTable::ReservationTable ( const TTAMachine::HWOperation & operation )

Builds a reservation table for the given operation.

Also includes empty resource rows so the reservation table is compatible with the global reservation table for the whole function unit.

Parameters

operation The operation of which resources to use.

Definition at line 66 of file ReservationTable.cc.

                                                                          :
     BitMatrix(
         operation.parentUnit()->maxLatency(),
         operation.parentUnit()->operationPortCount() + 
         operation.parentUnit()->pipelineElementCount(), false) {
  
     const TTAMachine::FunctionUnit& fu = *operation.parentUnit();
  
     // First resource rows represent the input and output ports of the FU.
     for (int p = 0; p < fu.operationPortCount(); ++p) {
         for (int cycle = 0; cycle < columnCount(); ++cycle) {
             setBit(
                 cycle, p, operation.pipeline()->isPortUsed(
                     *fu.operationPort(p), cycle));
         }
     }
     // Rest of the rows are pipeline resources.
     for (int r = 0; r < fu.pipelineElementCount(); ++r) {
         for (int cycle = 0; cycle < columnCount(); ++cycle) {
             setBit(
                 cycle, fu.operationPortCount() + r, 
                 operation.pipeline()->isResourceUsed(
                     fu.pipelineElement(r)->name(), cycle));
         }
     }
 }

References BitMatrix::columnCount(), TTAMachine::ExecutionPipeline::isPortUsed(), TTAMachine::ExecutionPipeline::isResourceUsed(), TTAMachine::PipelineElement::name(), TTAMachine::FunctionUnit::operationPort(), TTAMachine::FunctionUnit::operationPortCount(), TTAMachine::HWOperation::parentUnit(), TTAMachine::HWOperation::pipeline(), TTAMachine::FunctionUnit::pipelineElement(), TTAMachine::FunctionUnit::pipelineElementCount(), and BitMatrix::setBit().

Here is the call graph for this function:

◆ ~ReservationTable()

ReservationTable::~ReservationTable ( )

virtual

Destructor.

Definition at line 96 of file ReservationTable.cc.

96 {

97 }

Member Function Documentation

◆ advanceCycle()

void ReservationTable::advanceCycle ( )

◆ conflictsWith() [1/2]

bool BitMatrix::conflictsWith

◆ conflictsWith() [2/2]

bool ReservationTable::conflictsWith	(	const ReservationTable &	anotherReservationTable,
		int	cycle
	)		const

Referenced by CollisionMatrix::CollisionMatrix().

◆ init()

void ReservationTable::init ( const TTAMachine::FunctionUnit & fu )

◆ isReserved()

bool ReservationTable::isReserved	(	ResourceID	resource,
		int	cycle
	)		const

◆ issueOperation()

void ReservationTable::issueOperation ( ReservationTable & anotherReservationTable )

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

Public Types

Public Member Functions