HDLGenerator::DefaultAssign Class Reference

#include <HDLGenerator.hh>

Inheritance diagram for HDLGenerator::DefaultAssign:

Collaboration diagram for HDLGenerator::DefaultAssign:

Public Member Functions
	DefaultAssign (std::string name, std::string value)
	DefaultAssign (std::string name)
void	hdl (std::ostream &stream, Language lang, int level) override
Public Member Functions inherited from HDLGenerator::SequentialStatement
	SequentialStatement (std::string name)
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 Width	width ()
virtual WireType	wireType () const
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
std::string	value_
bool	dontCare_

Detailed Description

Assign default value.

Definition at line 367 of file HDLGenerator.hh.

Constructor & Destructor Documentation

DefaultAssign() [1/2]

HDLGenerator::DefaultAssign::DefaultAssign ( std::string  name, std::string  value  )

inline

Definition at line 369 of file HDLGenerator.hh.

            : SequentialStatement(name), value_(value), dontCare_(false) {}

DefaultAssign() [2/2]

HDLGenerator::DefaultAssign::DefaultAssign ( std::string  name )

inline

Definition at line 371 of file HDLGenerator.hh.

            : SequentialStatement(name), value_(""), dontCare_(true) {}

Member Function Documentation

hdl()

void HDLGenerator::DefaultAssign::hdl ( std::ostream &  stream, Language  lang, int  level  )

inlineoverridevirtual

Reimplemented from HDLGenerator::SequentialStatement.

Definition at line 374 of file HDLGenerator.hh.

                                                                        {
            Width w = width(name());
            WireType t = wireType(name());
 
 
            if (lang == Language::VHDL) {
                std::string def = "-";
                if (!dontCare_)
                    def = value_.substr(0, 1);
 
                std::string assign = " <= ";
                if (isVariable(name())) {
                    assign = " := ";
                }
                stream << StringTools::indent(level) << name() << assign;
 
                if (w.strWidth.empty() && w.intWidth == 1) {
                    char delim = t == WireType::Auto ? '\'' : '"';
                    stream << delim << def << delim << ";\n";
                } else {
                    stream << "(others => '" << def << "');\n";
                }
            } else if (lang == Language::Verilog) {
                std::string def = "x";
                if (!dontCare_)
                    def = value_.substr(0, 1);
 
                stream << StringTools::indent(level)
                       << name() << " = 'b" << def << ";\n";
            } else {
                throw std::runtime_error(__PRETTY_FUNCTION__);
            }
        }

References HDLGenerator::Auto, dontCare_, StringTools::indent(), HDLGenerator::Width::intWidth, HDLGenerator::Generatable::isVariable(), HDLGenerator::Generatable::name(), HDLGenerator::Width::strWidth, value_, HDLGenerator::Verilog, HDLGenerator::VHDL, HDLGenerator::Generatable::width(), and HDLGenerator::Generatable::wireType().

Here is the call graph for this function:

Member Data Documentation

dontCare_

bool HDLGenerator::DefaultAssign::dontCare_

private

Definition at line 410 of file HDLGenerator.hh.

Referenced by hdl().

value_

std::string HDLGenerator::DefaultAssign::value_

private

Definition at line 409 of file HDLGenerator.hh.

Referenced by hdl().

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

• HDLGenerator.hh