LatchInst Class Reference

Inheritance diagram for LatchInst:

Collaboration diagram for LatchInst:

Public Types
enum	Type {   Type::RISING_EDGE, Type::FALLING_EDGE, Type::ACTIVE_HIGH, Type::ACTIVE_LOW,   Type::ASYNCHRONOUS }
	Types of latches (defined by BLIF) More...

Public Member Functions
	LatchInst (std::string inst_name, std::map< std::string, std::string > port_conns, Type type, vtr::LogicValue init_value, double tcq=std::numeric_limits< double >::quiet_NaN(), double tsu=std::numeric_limits< double >::quiet_NaN(), double thld=std::numeric_limits< double >::quiet_NaN())
void	print_blif (std::ostream &os, size_t &, int depth=0) override
	Print the current instance in blif format. More...
void	print_verilog (std::ostream &os, int depth=0) override
	Print the current instanse in Verilog, see print_blif() for argument descriptions. More...
void	print_sdf (std::ostream &os, int depth=0) override
	Print the current instanse in SDF, see print_blif() for argument descriptions. More...
Public Member Functions inherited from Instance
virtual	~Instance ()=default

Private Attributes
std::string	instance_name_
std::map< std::string, std::string >	port_connections_
Type	type_
vtr::LogicValue	initial_value_
double	tcq_
double	tsu_
double	thld_

Friends
std::ostream &	operator<< (std::ostream &os, const Type &type)
std::istream &	operator>> (std::istream &is, Type &type)

Member Enumeration Documentation

Type

enum LatchInst::Type

strong

Types of latches (defined by BLIF)

Enumerator
RISING_EDGE
FALLING_EDGE
ACTIVE_HIGH
ACTIVE_LOW
ASYNCHRONOUS

Constructor & Destructor Documentation

LatchInst()

LatchInst::LatchInst ( std::string  inst_name, std::map< std::string, std::string >  port_conns, Type  type, vtr::LogicValue  init_value, double  tcq = std::numeric_limits<double>::quiet_NaN(), double  tsu = std::numeric_limits<double>::quiet_NaN(), double  thld = std::numeric_limits<double>::quiet_NaN()  )

inline

Parameters

inst_name	Name of this instance
port_conns	Instance's port-to-net connections
type	Type of this latch
init_value	Initial value of the latch
tcq	Clock-to-Q delay
tsu	Setup time
thld	Hold time

Member Function Documentation

print_blif()

void LatchInst::print_blif ( std::ostream &  os, size_t &  unconn_count, int  depth = 0  )

inlineoverridevirtual

Print the current instance in blif format.

Parameters

os	The output stream to print to
unconn_count	The current count of unconnected nets. BLIF has limitations requiring unconnected nets to be used to represent unconnected ports. To allow unique naming of these nets unconn_count is used to uniquify these names. Whenever creating an unconnected net (and using unconn_count to uniquify its name in the file) unconn_count should be incremented.
depth	Current indentation depth. This is used to figure-out how much indentation should be applied. This is purely for cosmetic formatting. Use indent() for generating consistent indentation.

Implements Instance.

print_sdf()

void LatchInst::print_sdf ( std::ostream &  os, int  depth = 0  )

inlineoverridevirtual

Print the current instanse in SDF, see print_blif() for argument descriptions.

Implements Instance.

print_verilog()

void LatchInst::print_verilog ( std::ostream &  os, int  depth = 0  )

inlineoverridevirtual

Print the current instanse in Verilog, see print_blif() for argument descriptions.

Implements Instance.

Friends And Related Function Documentation

operator<<

std::ostream& operator<< ( std::ostream &  os, const Type &  type  )

friend

operator>>

std::istream& operator>> ( std::istream &  is, Type &  type  )

friend

Field Documentation

initial_value_

vtr::LogicValue LatchInst::initial_value_

private

instance_name_

std::string LatchInst::instance_name_

private

port_connections_

std::map<std::string, std::string> LatchInst::port_connections_

private

tcq_

double LatchInst::tcq_

private

Clock delay + tcq

thld_

double LatchInst::thld_

private

Hold time

tsu_

double LatchInst::tsu_

private

Setup time

type_

Type LatchInst::type_

private

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

• netlist_writer.cpp