Encoding Class Reference

#include <Encoding.hh>

Inheritance diagram for Encoding:

Collaboration diagram for Encoding:

Public Member Functions
virtual	~Encoding ()
InstructionField *	parent () const
unsigned int	encoding () const
unsigned int	extraBits () const
virtual int	width () const
virtual int	bitPosition () const =0
virtual ObjectState *	saveState () const

Static Public Attributes
static const std::string	OSNAME_ENCODING = "encoding"
	ObjectState name for Encoding class.
static const std::string	OSKEY_ENCODING = "encoding"
	ObjectState attribute key for the encoding.
static const std::string	OSKEY_EXTRA_BITS = "extra_bits"
	ObjectState attribute key for the number of extra bits.

Protected Member Functions
	Encoding (unsigned int encoding, unsigned int extraBits, InstructionField *parent)
	Encoding (const ObjectState *state, InstructionField *parent)
void	setParent (InstructionField *parent)
void	setEncoding (unsigned int encoding, unsigned int extraBits)

Private Attributes
unsigned int	encoding_
	The encoding.
unsigned int	extraBits_
	The number of extra bits.
InstructionField *	parent_
	The parent instruction field.

Detailed Description

Represents an encoding of a source of destination within a move slot. This is a base class for different encodings.

Definition at line 46 of file Encoding.hh.

Constructor & Destructor Documentation

~Encoding()

Encoding::~Encoding ( )

virtual

The destructor.

Definition at line 87 of file Encoding.cc.

                    {
}

Encoding() [1/2]

Encoding::Encoding ( unsigned int  encoding, unsigned int  extraBits, InstructionField *  parent  )

protected

The constructor.

Parameters

encoding	The encoding.
extraBits	The number of extra bits.
parent	The parent pointer.

Definition at line 53 of file Encoding.cc.

                              : 
    encoding_(encoding), extraBits_(extraBits), parent_(parent) {
}

Encoding() [2/2]

Encoding::Encoding ( const ObjectState *  state, InstructionField *  parent  )

protected

The constructor.

Loads the state of the object from the given ObjectState instance.

Parameters

state	The ObjectState instance.
parent	The parent pointer.

Exceptions

ObjectStateLoadingException

If an error occurs while loading the state.

Definition at line 71 of file Encoding.cc.

    : encoding_(0), extraBits_(0), parent_(parent) {
    const string procName = "Encoding::Encoding";
 
    try {
        encoding_ = state->intAttribute(OSKEY_ENCODING);
        extraBits_ = state->intAttribute(OSKEY_EXTRA_BITS);
    } catch (const Exception& exception) {
        throw ObjectStateLoadingException(
            __FILE__, __LINE__, procName, exception.errorMessage());
    }
}

References encoding_, Exception::errorMessage(), extraBits_, ObjectState::intAttribute(), OSKEY_ENCODING, and OSKEY_EXTRA_BITS.

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Member Function Documentation

bitPosition()

virtual int Encoding::bitPosition ( ) const

pure virtual

Returns the position of the encoding within the parent field.

Implemented in BridgeEncoding, ImmediateEncoding, NOPEncoding, and SocketEncoding.

encoding()

unsigned int Encoding::encoding

(

)

const

Returns the encoding.

Returns

The encoding.

Definition at line 108 of file Encoding.cc.

                         {
    return encoding_;
}

References encoding_.

Referenced by SourceField::addBridgeEncoding(), SlotField::addSocketEncoding(), BEMTester::canAddComponentEncoding(), BEMTester::conflictsWithDestinationEncodings(), BEMTester::conflictsWithSourceEncodings(), CodeCompressorPlugin::encodeFUTerminal(), CodeCompressorPlugin::encodeImmediateTerminal(), CodeCompressorPlugin::encodeIUTerminal(), CodeCompressorPlugin::encodeNOP(), CodeCompressorPlugin::encodeRFTerminal(), printSlotFieldEncodings(), printSourceFieldEncodings(), saveState(), setEncoding(), SocketEncoding::setEncoding(), SourceField::setImmediateEncoding(), SlotField::setNoOperationEncoding(), DefaultDecoderGenerator::socketEncodingCondition(), SocketEncoding::socketIDWidth(), width(), and DefaultDecoderGenerator::writeBusControlRulesOfSImmSocketOfBus().

extraBits()

unsigned int Encoding::extraBits

(

)

const

Returns the number of extra zero bits in the encoding.

Returns

The number of extra bits.

Definition at line 119 of file Encoding.cc.

                          {
    return extraBits_;
}

References extraBits_.

Referenced by SourceField::addBridgeEncoding(), SlotField::addSocketEncoding(), BEMTester::canAddComponentEncoding(), saveState(), setEncoding(), SocketEncoding::setEncoding(), SourceField::setImmediateEncoding(), SlotField::setNoOperationEncoding(), SocketEncoding::socketIDWidth(), and width().

parent()

InstructionField * Encoding::parent

(

)

const

Returns the parent instruction field.

Returns

The parent instruction field.

Definition at line 97 of file Encoding.cc.

                       {
    return parent_;
}

References parent_.

Referenced by BridgeEncoding::parent(), ImmediateEncoding::parent(), NOPEncoding::parent(), SocketEncoding::parent(), and setParent().

saveState()

ObjectState * Encoding::saveState ( ) const

virtual

Saves the state of the object to an ObjectState instance.

Returns

The newly created ObjectState instance.

Reimplemented in BridgeEncoding, ImmediateEncoding, NOPEncoding, and SocketEncoding.

Definition at line 141 of file Encoding.cc.

                          {
    ObjectState* state = new ObjectState(OSNAME_ENCODING);
    state->setAttribute(OSKEY_ENCODING, encoding());
    state->setAttribute(OSKEY_EXTRA_BITS, extraBits());
    return state;
}

References encoding(), extraBits(), OSKEY_ENCODING, OSKEY_EXTRA_BITS, OSNAME_ENCODING, and ObjectState::setAttribute().

Referenced by BridgeEncoding::saveState(), ImmediateEncoding::saveState(), NOPEncoding::saveState(), and SocketEncoding::saveState().

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setEncoding()

void Encoding::setEncoding ( unsigned int  encoding, unsigned int  extraBits  )

protected

Sets the encoding

Definition at line 163 of file Encoding.cc.

                                                                   {
    encoding_ = encoding;
    extraBits_ = extraBits;
}

References encoding(), encoding_, extraBits(), and extraBits_.

Referenced by SocketEncoding::setEncoding().

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setParent()

void Encoding::setParent ( InstructionField *  parent )

protected

Sets the parent pointer.

Parameters

parent

The parent pointer.

Definition at line 155 of file Encoding.cc.

                                            {
    parent_ = parent;
}

References parent(), and parent_.

Referenced by BridgeEncoding::BridgeEncoding(), BridgeEncoding::BridgeEncoding(), SocketEncoding::detachFromParent(), ImmediateEncoding::ImmediateEncoding(), ImmediateEncoding::ImmediateEncoding(), NOPEncoding::NOPEncoding(), NOPEncoding::NOPEncoding(), SocketEncoding::setEncoding(), SocketEncoding::SocketEncoding(), SocketEncoding::SocketEncoding(), BridgeEncoding::~BridgeEncoding(), ImmediateEncoding::~ImmediateEncoding(), and NOPEncoding::~NOPEncoding().

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width()

int Encoding::width ( ) const

virtual

Returns the bit width required by the encoding.

Returns

The bit width.

Reimplemented in ImmediateEncoding, and SocketEncoding.

Definition at line 130 of file Encoding.cc.

                      {
    return MathTools::bitLength(encoding()) + extraBits();
}

References MathTools::bitLength(), encoding(), and extraBits().

Referenced by BridgeEncoding::bitPosition(), NOPEncoding::bitPosition(), BEMTester::canAddComponentEncoding(), CodeCompressorPlugin::encodeNOP(), ImmediateEncoding::encodingWidth(), printSlotFieldEncodings(), printSourceFieldEncodings(), SlotField::width(), and SourceField::width().

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Member Data Documentation

encoding_

unsigned int Encoding::encoding_

private

The encoding.

Definition at line 81 of file Encoding.hh.

Referenced by encoding(), Encoding(), and setEncoding().

extraBits_

unsigned int Encoding::extraBits_

private

The number of extra bits.

Definition at line 83 of file Encoding.hh.

Referenced by Encoding(), extraBits(), and setEncoding().

OSKEY_ENCODING

const std::string Encoding::OSKEY_ENCODING = "encoding"

static

ObjectState attribute key for the encoding.

Definition at line 66 of file Encoding.hh.

Referenced by Encoding(), saveState(), BEMSerializer::slotFieldToFile(), BEMSerializer::slotFieldToOM(), BEMSerializer::sourceFieldToFile(), and BEMSerializer::sourceFieldToOM().

OSKEY_EXTRA_BITS

const std::string Encoding::OSKEY_EXTRA_BITS = "extra_bits"

static

ObjectState attribute key for the number of extra bits.

Definition at line 68 of file Encoding.hh.

Referenced by Encoding(), saveState(), BEMSerializer::slotFieldToFile(), BEMSerializer::slotFieldToOM(), BEMSerializer::sourceFieldToFile(), and BEMSerializer::sourceFieldToOM().

OSNAME_ENCODING

const std::string Encoding::OSNAME_ENCODING = "encoding"

static

ObjectState name for Encoding class.

Definition at line 64 of file Encoding.hh.

Referenced by saveState().

parent_

InstructionField* Encoding::parent_

private

The parent instruction field.

Definition at line 85 of file Encoding.hh.

Referenced by parent(), and setParent().

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

• Encoding.hh
• Encoding.cc