- A Logic Circuit Simulation Library in C++

lcs::BitBuff< bits > Class Template Reference

#include <bitbuff.h>

Inheritance diagram for lcs::BitBuff< bits >:

List of all members.

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Detailed Description

template<int bits = 1>
class lcs::BitBuff< bits >

A utility class which encapsulates a group of lcs::Bit objects. Objects of this class should typically be used as temporary/intermediate data storage buffers.

Public Member Functions
	BitBuff (void)
	BitBuff (const BitBuff< bits > &reg)
virtual	~BitBuff ()
template<int w>
const BitBuff< w >	partSelect (int s)
void	notify (Module *mod, int bit=-1)
void	stopNotification (Module *mod, int bit=-1)
int	width (void)
template<int rbits>
BitBuff< bits > &	operator= (const BitBuff< rbits > &rhs)
template<int w, ExprType Type, typename LExprType, typename RExprType>
BitBuff< bits > &	operator= (const Expression< w, Type, LExprType, RExprType > &expr)
template<int rbits>
BitBuff< bits > &	operator= (const InputBus< rbits > &rhs)
const Expression< 1, BITBUFF_EXPR, void, void >	operator[] (int index) const throw (OutOfRangeException<int>)
Expression< 1, BITBUFF_EXPR, void, void >	operator[] (int index) throw (OutOfRangeException<int>)

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Constructor & Destructor Documentation

template<int bits>

lcs::BitBuff< bits >::BitBuff

(

void

)

Default constructor.

template<int bits>

lcs::BitBuff< bits >::BitBuff

(

const BitBuff< bits > &

reg

)

Copy constructor.

template<int bits>

lcs::BitBuff< bits >::~BitBuff

(

)

[virtual]

Destructor.

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Member Function Documentation

template<int bits>

void lcs::BitBuff< bits >::notify	(	Module *	mod,
		int	bit = -1
	)

Registers the module which has to be notified about a bit state change.

Parameters:

	mod	Pointer to the module object which seeks to be notified about a bit state change.
	bit	The index of the bit whose state change should be notified to the module.

template<int bits>

template<int rbits>

BitBuff< bits > & lcs::BitBuff< bits >::operator=

(

const InputBus< rbits > &

rhs

)

Assignment operator to facilitate assignment using a lcs::InputBus object.

template<int bits>

template<int w, ExprType Type, typename LExprType, typename RExprType>

BitBuff< bits > & lcs::BitBuff< bits >::operator=

(

const Expression< w, Type, LExprType, RExprType > &

expr

)

Assignment operator to facilitate assignment using an lcs::Expression object. ie., the operator facilitates assignment with an expression of bitwise operations on the right hand side of the assignment operator.

template<int bits>

template<int rbits>

BitBuff< bits > & lcs::BitBuff< bits >::operator=

(

const BitBuff< rbits > &

rhs

)

Assignment operator.

template<int bits>

Expression< 1, BITBUFF_EXPR, void, void > lcs::BitBuff< bits >::operator[]

(

int

index

)

throw (OutOfRangeException<int>)

Returns a the suitable expression object when a bitselect is requested. An expression object is returned so that a bitselect can be used in a normal expression of bitwise operations.

template<int bits>

const Expression< 1, BITBUFF_EXPR, void, void > lcs::BitBuff< bits >::operator[]

(

int

index

)

const throw (OutOfRangeException<int>)

Returns a the suitable constant expression object when a bitselect is requested. An expression object is returned so that a bitselect can be used in a normal expression of bitwise operations.

template<int bits>

template<int w>

const BitBuff< w > lcs::BitBuff< bits >::partSelect

(

int

s

)

Returns a part-buffer formed from a set of consecutive bits of the original BitBuffer object. If s+w goes beyond the range of the original bus width, then, only the bits within range are assigned to the bits of the new bus object.

Parameters:

	w	The width of the part-buffer.
	s	The start bit from where the part-buffer should be accumulated.

template<int bits>

void lcs::BitBuff< bits >::stopNotification	(	Module *	mod,
		int	bit = -1
	)

De-registers a module from the list of modules which have to be notified of bit state changes.

Parameters:

	mod	Pointer to the module object which seeks to de-register.
	bit	The index of the bit whose state change was being notified to the module.

template<int bits = 1>

int lcs::BitBuff< bits >::width

(

void

)

[inline]

Returns the width of the buffer.

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Copyright © 2006, 2007 Siva Chandra