#include <HDLGenerator.hh>

Inheritance diagram for HDLGenerator::BinaryConstant:

Collaboration diagram for HDLGenerator::BinaryConstant:

Public Member Functions
	BinaryConstant (std::string name, int width, int value)

int	value () const noexcept

Width	width () final

void	declare (std::ostream &stream, Language lang, int level)

Public Member Functions inherited from HDLGenerator::Generatable
	Generatable (std::string name)

virtual	~Generatable ()=default

virtual void	build ()

virtual void	reads (const std::string &var)

virtual void	reads (const LHSValue &var)

virtual void	writes (const std::string &var)

virtual Register &	getRegister (const std::string &var)

virtual bool	hasOption (const std::string &var)

virtual bool	isRegister (const std::string &name)

virtual bool	isVariable (const std::string &name)

virtual bool	isConstant (const std::string &name)

virtual Width	width (const std::string &name)

int	integerWidth (const std::string &name)

virtual WireType	wireType (const std::string &name)

virtual WireType	wireType () const

virtual void	hdl (std::ostream &stream, Language lang, int indent)

virtual void	hdl (std::ostream &stream, Language lang)

virtual void	implementAll (std::ostream &stream, Language lang)

virtual void	implementAll (std::ostream &stream, Language lang, int indent)

template<typename Func >
void	forAll (Func func)

template<typename Type , typename Func >
void	forAll (Func func)

template<class Type >
bool	parentIs ()

template<class Type >
Type *	parentType ()

void	pushComponent (std::shared_ptr< Generatable > c)

template<class Component >
void	addComponent (Component c)

const std::string &	name () const noexcept

void	setParent (Generatable *parent) noexcept

Generatable *	parent () const noexcept

Private Attributes
int	width_

int	value_

Detailed Description

Binary constant.

Definition at line 244 of file HDLGenerator.hh.

Constructor & Destructor Documentation

◆ BinaryConstant()

HDLGenerator::BinaryConstant::BinaryConstant	(	std::string	name,
		int	width,
		int	value
	)

inline

Definition at line 246 of file HDLGenerator.hh.

247 : Generatable(name), width_(width), value_(value) {}

Member Function Documentation

◆ declare()

void HDLGenerator::BinaryConstant::declare	(	std::ostream &	stream,
		Language	lang,
		int	level
	)

inline

Definition at line 253 of file HDLGenerator.hh.

                                                                    {
             std::string binVal = "";
             int tempVal = value_;
             for (int i = width_ - 1; i >= 0; --i) {
                 long power = static_cast<long>(std::pow(2, i));
                 if (power <= tempVal) {
                     tempVal -= power;
                     binVal += "1";
                 } else {
                     binVal += "0";
                 }
             }
  
             if (lang == Language::VHDL) {
                 stream << StringTools::indent(level) << "constant " << name()
                        << " : std_logic_vector(" << width_ - 1
                        << " downto 0) := \"" << binVal << "\";\n";
             } else if (lang == Language::Verilog) {
                 stream << StringTools::indent(level)
                        << "localparam [" << width_-1 << ":0] "
                        << name() << " = " << width_ << "'b" << binVal << ";\n";
             } else {
                 throw std::runtime_error(__PRETTY_FUNCTION__);
             }
         }