Dynamic instruction for Minor. More...

#include <dyn_inst.hh>

Inheritance diagram for Minor::MinorDynInst:

Public Member Functions
	MinorDynInst (StaticInstPtr si, InstId id_=InstId(), Fault fault_=NoFault)

bool	isBubble () const
	The BubbleIF interface. More...

bool	isFault () const
	Is this a fault rather than instruction. More...

bool	isInst () const
	Is this a real instruction. More...

bool	isMemRef () const
	Is this a real mem ref instruction. More...

bool	isNoCostInst () const
	Is this an instruction that can be executed ‘for free’ and needn't spend time in an FU. More...

bool	isLastOpInInst () const
	Assuming this is not a fault, is this instruction either a whole instruction or the last microop from a macroop. More...

void	minorTraceInst (const Named &named_object) const
	Print (possibly verbose) instruction information for MinorTrace using the given Named object's name. More...

void	reportData (std::ostream &os) const
	ReportIF interface. More...

bool	readPredicate () const

void	setPredicate (bool val)

bool	readMemAccPredicate () const

void	setMemAccPredicate (bool val)

	~MinorDynInst ()

Public Member Functions inherited from RefCounted
	RefCounted ()
	We initialize the reference count to zero and the first object to take ownership of it must increment it to one. More...

virtual	~RefCounted ()
	We make the destructor virtual because we're likely to have virtual functions on reference counted objects. More...

void	incref () const
	Increment the reference count. More...

void	decref () const
	Decrement the reference count and destroy the object if all references are gone. More...

Static Public Member Functions
static MinorDynInstPtr	bubble ()
	There is a single bubble inst. More...

static void	init ()
	Initialise the class. More...

Public Attributes
const StaticInstPtr	staticInst

InstId	id

Trace::InstRecord *	traceData
	Trace information for this instruction's execution. More...

TheISA::PCState	pc
	The fetch address of this instruction. More...

Fault	fault
	This is actually a fault masquerading as an instruction. More...

bool	triedToPredict
	Tried to predict the destination of this inst (if a control instruction or a sys call) More...

bool	predictedTaken
	This instruction was predicted to change control flow and the following instructions will have a newer predictionSeqNum. More...

TheISA::PCState	predictedTarget
	Predicted branch target. More...

unsigned int	fuIndex
	Fields only set during execution. More...

bool	inLSQ
	This instruction is in the LSQ, not a functional unit. More...

Fault	translationFault
	Translation fault in case of a mem ref. More...

bool	inStoreBuffer
	The instruction has been sent to the store buffer. More...

bool	canEarlyIssue
	Can this instruction be executed out of order. More...

bool	predicate
	Flag controlling conditional execution of the instruction. More...

bool	memAccPredicate
	Flag controlling conditional execution of the memory access associated with the instruction (only meaningful for loads/stores) More...

InstSeqNum	instToWaitFor
	execSeqNum of the latest inst on which this inst depends. More...

Cycles	extraCommitDelay
	Extra delay at the end of the pipeline. More...

TimingExpr *	extraCommitDelayExpr

Cycles	minimumCommitCycle
	Once issued, extraCommitDelay becomes minimumCommitCycle to account for delay in absolute time. More...

std::vector< RegId >	flatDestRegIdx
	Flat register indices so that, when clearing the scoreboard, we have the same register indices as when the instruction was marked up. More...

Static Private Attributes
static MinorDynInstPtr	bubbleInst = NULL
	A prototypical bubble instruction. More...

Detailed Description

Dynamic instruction for Minor.

MinorDynInst implements the BubbleIF interface Has two separate notions of sequence number for pre/post-micro-op decomposition: fetchSeqNum and execSeqNum

Definition at line 157 of file dyn_inst.hh.

Constructor & Destructor Documentation

◆ MinorDynInst()

Minor::MinorDynInst::MinorDynInst	(	StaticInstPtr	si,
		InstId	id_ = `InstId()`,
		Fault	fault_ = `NoFault`
	)

inline

Definition at line 235 of file dyn_inst.hh.

Referenced by init().

◆ ~MinorDynInst()

Minor::MinorDynInst::~MinorDynInst ( )

Definition at line 235 of file dyn_inst.cc.

References traceData.

Member Function Documentation

◆ bubble()

static MinorDynInstPtr Minor::MinorDynInst::bubble ( )

inlinestatic

There is a single bubble inst.

Definition at line 251 of file dyn_inst.hh.

References bubbleInst.

Referenced by Minor::QueuedInst::bubble(), Minor::ForwardInstData::bubbleFill(), Minor::Execute::commit(), Minor::Execute::evaluate(), and Minor::Execute::takeInterrupt().

◆ init()

void Minor::MinorDynInst::init ( )

static

Initialise the class.

Definition at line 79 of file dyn_inst.cc.

References bubbleInst, MinorDynInst(), and StaticInst::nullStaticInstPtr.

Referenced by MinorCPU::MinorCPU().

◆ isBubble()

bool Minor::MinorDynInst::isBubble ( ) const

inline

The BubbleIF interface.

Definition at line 248 of file dyn_inst.hh.

Referenced by isInst(), and reportData().

◆ isFault()

bool Minor::MinorDynInst::isFault ( ) const

inline

Is this a fault rather than instruction.

Definition at line 254 of file dyn_inst.hh.

References fault, and NoFault.

Referenced by isInst(), minorTraceInst(), Minor::operator<<(), and reportData().

◆ isInst()

bool Minor::MinorDynInst::isInst ( ) const

inline

Is this a real instruction.

Definition at line 257 of file dyn_inst.hh.

References isBubble(), and isFault().

Referenced by isMemRef(), and isNoCostInst().

◆ isLastOpInInst()

bool Minor::MinorDynInst::isLastOpInInst ( ) const

Assuming this is not a fault, is this instruction either a whole instruction or the last microop from a macroop.

Definition at line 90 of file dyn_inst.cc.

References StaticInst::isLastMicroop(), StaticInst::isMicroop(), and staticInst.

◆ isMemRef()

bool Minor::MinorDynInst::isMemRef ( ) const

inline

Is this a real mem ref instruction.

Definition at line 260 of file dyn_inst.hh.

References isInst(), StaticInst::isMemRef(), and staticInst.

◆ isNoCostInst()

bool Minor::MinorDynInst::isNoCostInst ( ) const

Is this an instruction that can be executed ‘for free’ and needn't spend time in an FU.

Definition at line 97 of file dyn_inst.cc.

References isInst(), StaticInst::opClass(), and staticInst.

◆ minorTraceInst()

void Minor::MinorDynInst::minorTraceInst ( const Named & named_object ) const

Print (possibly verbose) instruction information for MinorTrace using the given Named object's name.

Definition at line 181 of file dyn_inst.cc.

References ccprintf(), StaticInst::destRegIdx(), StaticInst::disassemble(), fault, StaticInst::getEMI(), isFault(), StaticInst::isMacroop(), MINORINST, StaticInst::numDestRegs(), StaticInst::numSrcRegs(), StaticInst::opClass(), pc, predictedTaken, StaticInst::printFlags(), Minor::printRegName(), StaticInst::srcRegIdx(), and staticInst.

◆ readMemAccPredicate()

bool Minor::MinorDynInst::readMemAccPredicate ( ) const

inline

Definition at line 284 of file dyn_inst.hh.

References memAccPredicate.

◆ readPredicate()

bool Minor::MinorDynInst::readPredicate ( ) const

inline

Definition at line 280 of file dyn_inst.hh.

References predicate.

◆ reportData()

void Minor::MinorDynInst::reportData ( std::ostream & os ) const

ReportIF interface.

Definition at line 103 of file dyn_inst.cc.

References id, isBubble(), isFault(), NoFault, X86ISA::os, and translationFault.

◆ setMemAccPredicate()

void Minor::MinorDynInst::setMemAccPredicate ( bool val )

inline

Definition at line 286 of file dyn_inst.hh.

References memAccPredicate, and X86ISA::val.

◆ setPredicate()

void Minor::MinorDynInst::setPredicate ( bool val )

inline

Definition at line 282 of file dyn_inst.hh.

References predicate, and X86ISA::val.

Member Data Documentation

◆ bubbleInst

MinorDynInstPtr Minor::MinorDynInst::bubbleInst = NULL

staticprivate

A prototypical bubble instruction.

You must call MinorDynInst::init to initialise this

Definition at line 162 of file dyn_inst.hh.

Referenced by bubble(), and init().

◆ canEarlyIssue

bool Minor::MinorDynInst::canEarlyIssue

Can this instruction be executed out of order.

In this model, this only happens with mem refs that need to be issued early to allow other instructions to fill the fetch delay

Definition at line 206 of file dyn_inst.hh.

◆ extraCommitDelay

Cycles Minor::MinorDynInst::extraCommitDelay

Extra delay at the end of the pipeline.

Definition at line 222 of file dyn_inst.hh.

◆ extraCommitDelayExpr

TimingExpr* Minor::MinorDynInst::extraCommitDelayExpr

Definition at line 223 of file dyn_inst.hh.

◆ fault

Fault Minor::MinorDynInst::fault

This is actually a fault masquerading as an instruction.

Definition at line 176 of file dyn_inst.hh.

Referenced by isFault(), minorTraceInst(), and Minor::operator<<().

◆ flatDestRegIdx

std::vector<RegId> Minor::MinorDynInst::flatDestRegIdx

Flat register indices so that, when clearing the scoreboard, we have the same register indices as when the instruction was marked up.

Definition at line 232 of file dyn_inst.hh.

◆ fuIndex

unsigned int Minor::MinorDynInst::fuIndex

Fields only set during execution.

FU this instruction is issued to

Definition at line 192 of file dyn_inst.hh.

◆ id

InstId Minor::MinorDynInst::id

Definition at line 167 of file dyn_inst.hh.

Referenced by Minor::operator<<(), and reportData().

◆ inLSQ

bool Minor::MinorDynInst::inLSQ

This instruction is in the LSQ, not a functional unit.

Definition at line 195 of file dyn_inst.hh.

◆ inStoreBuffer

bool Minor::MinorDynInst::inStoreBuffer

The instruction has been sent to the store buffer.

Definition at line 201 of file dyn_inst.hh.

◆ instToWaitFor

InstSeqNum Minor::MinorDynInst::instToWaitFor

execSeqNum of the latest inst on which this inst depends.

This can be used as a sanity check for dependency ordering where slightly out of order execution is required (notably initiateAcc for memory ops)

Definition at line 219 of file dyn_inst.hh.

◆ memAccPredicate

bool Minor::MinorDynInst::memAccPredicate

Flag controlling conditional execution of the memory access associated with the instruction (only meaningful for loads/stores)

Definition at line 213 of file dyn_inst.hh.

Referenced by readMemAccPredicate(), and setMemAccPredicate().

◆ minimumCommitCycle

Cycles Minor::MinorDynInst::minimumCommitCycle

Once issued, extraCommitDelay becomes minimumCommitCycle to account for delay in absolute time.

Definition at line 227 of file dyn_inst.hh.

◆ pc

TheISA::PCState Minor::MinorDynInst::pc

The fetch address of this instruction.

Definition at line 173 of file dyn_inst.hh.

Referenced by minorTraceInst(), and Minor::operator<<().

◆ predicate

bool Minor::MinorDynInst::predicate

Flag controlling conditional execution of the instruction.

Definition at line 209 of file dyn_inst.hh.

Referenced by readPredicate(), and setPredicate().

◆ predictedTaken

bool Minor::MinorDynInst::predictedTaken

This instruction was predicted to change control flow and the following instructions will have a newer predictionSeqNum.

Definition at line 184 of file dyn_inst.hh.

Referenced by minorTraceInst().

◆ predictedTarget

TheISA::PCState Minor::MinorDynInst::predictedTarget

Predicted branch target.

Definition at line 187 of file dyn_inst.hh.

◆ staticInst

const StaticInstPtr Minor::MinorDynInst::staticInst

Definition at line 165 of file dyn_inst.hh.

Referenced by isLastOpInInst(), isMemRef(), isNoCostInst(), minorTraceInst(), and Minor::operator<<().

◆ traceData

Trace::InstRecord* Minor::MinorDynInst::traceData

Trace information for this instruction's execution.

Definition at line 170 of file dyn_inst.hh.

Referenced by ~MinorDynInst().

◆ translationFault

Fault Minor::MinorDynInst::translationFault

Translation fault in case of a mem ref.

Definition at line 198 of file dyn_inst.hh.

Referenced by Minor::operator<<(), and reportData().

◆ triedToPredict

bool Minor::MinorDynInst::triedToPredict

Tried to predict the destination of this inst (if a control instruction or a sys call)

Definition at line 180 of file dyn_inst.hh.

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

cpu/minor/dyn_inst.hh
cpu/minor/dyn_inst.cc

Public Member Functions

Static Public Member Functions

Public Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ MinorDynInst()

◆ ~MinorDynInst()

Member Function Documentation

◆ bubble()

◆ init()

◆ isBubble()

◆ isFault()

◆ isInst()

◆ isLastOpInInst()

◆ isMemRef()

◆ isNoCostInst()

◆ minorTraceInst()

◆ readMemAccPredicate()

◆ readPredicate()

◆ reportData()

◆ setMemAccPredicate()

◆ setPredicate()

Member Data Documentation

◆ bubbleInst

◆ canEarlyIssue

◆ extraCommitDelay

◆ extraCommitDelayExpr

◆ fault

◆ flatDestRegIdx

◆ fuIndex

◆ id

◆ inLSQ

◆ inStoreBuffer

◆ instToWaitFor

◆ memAccPredicate

◆ minimumCommitCycle

◆ pc

◆ predicate

◆ predictedTaken

◆ predictedTarget

◆ staticInst

◆ traceData

◆ translationFault

◆ triedToPredict