HDLGenerator::BinaryConstant Class Reference

#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 245 of file HDLGenerator.hh.

Constructor & Destructor Documentation

BinaryConstant()

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

inline

Definition at line 247 of file HDLGenerator.hh.

            : 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 254 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__);
            }
        }

References StringTools::indent(), HDLGenerator::Generatable::name(), value_, HDLGenerator::Verilog, HDLGenerator::VHDL, and width_.

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value()

int HDLGenerator::BinaryConstant::value ( ) const

inlinenoexcept

Definition at line 250 of file HDLGenerator.hh.

{ return value_; }

References value_.

width()

Width HDLGenerator::BinaryConstant::width ( )

inlinefinalvirtual

Reimplemented from HDLGenerator::Generatable.

Definition at line 252 of file HDLGenerator.hh.

{ return {name(), width_}; }

References HDLGenerator::Generatable::name(), and width_.

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Member Data Documentation

value_

int HDLGenerator::BinaryConstant::value_

private

Definition at line 282 of file HDLGenerator.hh.

Referenced by declare(), and value().

width_

int HDLGenerator::BinaryConstant::width_

private

Definition at line 281 of file HDLGenerator.hh.

Referenced by declare(), and width().

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

• HDLGenerator.hh