otawa::hard::FunctionalUnit Class Reference

A functional unit is specialized in the computation of some kinds of instructions. More...

#include <otawa/hard/Processor.h>

Inheritance diagram for otawa::hard::FunctionalUnit:

Public Member Functions
	FunctionalUnit (void)
virtual	~FunctionalUnit (void)
bool	isPipelined (void) const
elm::String	getName (void) const
int	getLatency (void) const
int	getWidth (void) const
bool	isBranch (void) const
bool	isMem (void) const

Protected Attributes
string	name
int	latency
int	width
bool	branch
bool	mem

Private Member Functions
	SERIALIZABLE (otawa::hard::FunctionalUnit, BASE(otawa::hard::PipelineUnit)&FIELD(pipelined))

Private Attributes
bool	pipelined

Friends
class	FunctionalUnitBuilder

Detailed Description

A functional unit is specialized in the computation of some kinds of instructions.

They are contained in a stage (otawa::hard::Stage) of type EXEC. The selection of a functional unit is performed thanks to the otawa::hard::Dispatch objects provided in the execution stage.

A functional unit is defined by:

• its latency (computation time in cycles),
• its width (number of instructions traversing the functional unit in parallel),
• pipeline property indicating that the function unit is pipelined or not (that is it may chain instruction execution cycles after cycles).

Constructor & Destructor Documentation

otawa::hard::FunctionalUnit::FunctionalUnit ( void  )

inline

virtual otawa::hard::FunctionalUnit::~FunctionalUnit ( void  )

inlinevirtual

Member Function Documentation

int otawa::hard::PipelineUnit::getLatency ( void  ) const

inlineinherited

Referenced by otawa::ParExeProc::ParExeProc().

elm::String otawa::hard::PipelineUnit::getName ( void  ) const

inlineinherited

References name.

Referenced by otawa::ParExeProc::ParExeProc().

int otawa::hard::PipelineUnit::getWidth ( void  ) const

inlineinherited

References width().

Referenced by otawa::ParExeProc::ParExeProc().

bool otawa::hard::PipelineUnit::isBranch ( void  ) const

inlineinherited

References otawa::sem::branch().

bool otawa::hard::PipelineUnit::isMem ( void  ) const

inlineinherited

bool otawa::hard::FunctionalUnit::isPipelined ( void  ) const

inline

Referenced by otawa::ParExeProc::ParExeProc().

otawa::hard::FunctionalUnit::SERIALIZABLE ( otawa::hard::FunctionalUnit  , BASE(otawa::hard::PipelineUnit)&FIELD(pipelined)    )

private

Friends And Related Function Documentation

friend class FunctionalUnitBuilder

friend

Member Data Documentation

bool otawa::hard::PipelineUnit::branch

protectedinherited

int otawa::hard::PipelineUnit::latency

protectedinherited

Referenced by otawa::hard::FunctionalUnitBuilder::latency(), and otawa::hard::StageBuilder::latency().

bool otawa::hard::PipelineUnit::mem

protectedinherited

string otawa::hard::PipelineUnit::name

protectedinherited

Referenced by otawa::hard::FunctionalUnitBuilder::FunctionalUnitBuilder(), and otawa::hard::StageBuilder::StageBuilder().

bool otawa::hard::FunctionalUnit::pipelined

private

Referenced by otawa::hard::FunctionalUnitBuilder::pipelined().

int otawa::hard::PipelineUnit::width

protectedinherited

Referenced by otawa::hard::FunctionalUnitBuilder::width(), and otawa::hard::StageBuilder::width().

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

• include/otawa/hard/Processor.h