RTLIL::Const Struct Reference

#include <rtlil.h>

Public Member Functions
	Const ()
	Const (std::string str)
	Const (int val, int width=32)
	Const (RTLIL::State bit, int width=1)
	Const (const std::vector< RTLIL::State > &bits)
	Const (const std::vector< bool > &bits)
bool	operator< (const RTLIL::Const &other) const
bool	operator== (const RTLIL::Const &other) const
bool	operator!= (const RTLIL::Const &other) const
bool	as_bool () const
int	as_int (bool is_signed=false) const
std::string	as_string () const
std::string	decode_string () const
int	size () const

Data Fields
int	flags
std::vector< RTLIL::State >	bits

Detailed Description

Definition at line 435 of file rtlil.h.

Constructor & Destructor Documentation

RTLIL::Const::Const

(

)

Definition at line 36 of file rtlil.cc.

{
    flags = RTLIL::CONST_FLAG_NONE;
}

RTLIL::Const::Const

(

std::string

str

)

Definition at line 41 of file rtlil.cc.

{
    flags = RTLIL::CONST_FLAG_STRING;
    for (int i = str.size()-1; i >= 0; i--) {
        unsigned char ch = str[i];
        for (int j = 0; j < 8; j++) {
            bits.push_back((ch & 1) != 0 ? RTLIL::S1 : RTLIL::S0);
            ch = ch >> 1;
        }
    }
}

RTLIL::Const::Const	(	int	val,
		int	width = 32
	)

Definition at line 53 of file rtlil.cc.

{
    flags = RTLIL::CONST_FLAG_NONE;
    for (int i = 0; i < width; i++) {
        bits.push_back((val & 1) != 0 ? RTLIL::S1 : RTLIL::S0);
        val = val >> 1;
    }
}

RTLIL::Const::Const	(	RTLIL::State	bit,
		int	width = 1
	)

Definition at line 62 of file rtlil.cc.

{
    flags = RTLIL::CONST_FLAG_NONE;
    for (int i = 0; i < width; i++)
        bits.push_back(bit);
}

RTLIL::Const::Const ( const std::vector< RTLIL::State > &  bits )

inline

Definition at line 444 of file rtlil.h.

: bits(bits) { flags = CONST_FLAG_NONE; };

RTLIL::Const::Const

(

const std::vector< bool > &

bits

)

Definition at line 69 of file rtlil.cc.

{
    flags = RTLIL::CONST_FLAG_NONE;
    for (auto b : bits)
        this->bits.push_back(b ? RTLIL::S1 : RTLIL::S0);
}

Member Function Documentation

bool RTLIL::Const::as_bool

(

)

const

Definition at line 96 of file rtlil.cc.

{
    for (size_t i = 0; i < bits.size(); i++)
        if (bits[i] == RTLIL::S1)
            return true;
    return false;
}

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int RTLIL::Const::as_int

(

bool

is_signed = false

)

const

Definition at line 104 of file rtlil.cc.

{
    int32_t ret = 0;
    for (size_t i = 0; i < bits.size() && i < 32; i++)
        if (bits[i] == RTLIL::S1)
            ret |= 1 << i;
    if (is_signed && bits.back() == RTLIL::S1)
        for (size_t i = bits.size(); i < 32; i++)
            ret |= 1 << i;
    return ret;
}

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std::string RTLIL::Const::as_string

(

)

const

Definition at line 116 of file rtlil.cc.

{
    std::string ret;
    for (size_t i = bits.size(); i > 0; i--)
        switch (bits[i-1]) {
            case S0: ret += "0"; break;
            case S1: ret += "1"; break;
            case Sx: ret += "x"; break;
            case Sz: ret += "z"; break;
            case Sa: ret += "-"; break;
            case Sm: ret += "m"; break;
        }
    return ret;
}

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std::string RTLIL::Const::decode_string

(

)

const

Definition at line 131 of file rtlil.cc.

{
    std::string string;
    std::vector <char> string_chars;
    for (int i = 0; i < int (bits.size()); i += 8) {
        char ch = 0;
        for (int j = 0; j < 8 && i + j < int (bits.size()); j++)
            if (bits[i + j] == RTLIL::State::S1)
                ch |= 1 << j;
        if (ch != 0)
            string_chars.push_back(ch);
    }
    for (int i = int (string_chars.size()) - 1; i >= 0; i--)
        string += string_chars[i];
    return string;
}

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bool RTLIL::Const::operator!=

(

const RTLIL::Const &

other

)

const

Definition at line 91 of file rtlil.cc.

{
    return bits != other.bits;
}

bool RTLIL::Const::operator<

(

const RTLIL::Const &

other

)

const

Definition at line 76 of file rtlil.cc.

{
    if (bits.size() != other.bits.size())
        return bits.size() < other.bits.size();
    for (size_t i = 0; i < bits.size(); i++)
        if (bits[i] != other.bits[i])
            return bits[i] < other.bits[i];
    return false;
}

bool RTLIL::Const::operator==

(

const RTLIL::Const &

other

)

const

Definition at line 86 of file rtlil.cc.

{
    return bits == other.bits;
}

int RTLIL::Const::size ( ) const

inline

Definition at line 457 of file rtlil.h.

{ return bits.size(); }

Field Documentation

std::vector<RTLIL::State> RTLIL::Const::bits

Definition at line 438 of file rtlil.h.

int RTLIL::Const::flags

Definition at line 437 of file rtlil.h.

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The documentation for this struct was generated from the following files:

• rtlil.h
• rtlil.cc