Module ariths_gen.wire_components.wires

Classes

class ConstantWireValue0 (name: str = '')

Class representing wire carrying constant value 0 used to interconnect components.

Description of the init method.

Method fills in desired constant wire's attributes regarding its values for individual representations.

Args

name : str, optional
Custom constant wire name and prefix (used for generation of circuits that use constants as inputs). Defaults to "".
Expand source code 
class ConstantWireValue0(Wire):
    """Class representing wire carrying constant value 0 used to interconnect components.

    Description of the __init__ method.

    Method fills in desired constant wire's attributes regarding its values for individual representations.

    Args:
        name (str, optional): Custom constant wire name and prefix (used for generation of circuits that use constants as inputs). Defaults to "".
    """
    def __init__(self, name: str = ""):
        self.name = "constant_value_0" if name == "" else name
        self.prefix = "constant_value_0" if name == "" else name
        self.index = 0
        self.value = 0
        self.parent_bus = None

        self.c_const = "0x00"
        self.v_const = "1'b0"
        self.blif_const = "gnd"
        # Constant wire id for CGP generation
        self.cgp_const = 0

    @staticmethod
    def is_const():
        """Information whether wire carries constant value.

        Returns:
            bool: True, because constant wire carries a constant value 0.
        """
        return True

Ancestors

Static methods

def is_const()

Information whether wire carries constant value.

Returns

bool
True, because constant wire carries a constant value 0.
Expand source code 
@staticmethod
def is_const():
    """Information whether wire carries constant value.

    Returns:
        bool: True, because constant wire carries a constant value 0.
    """
    return True

Inherited members

class ConstantWireValue1 (name: str = '')

Class representing wire carrying constant value 1 used to interconnect components.

Description of the init method.

Method fills in desired constant wire's attributes regarding its values for individual representations.

Args

name : str, optional
Custom constant wire name and prefix (used for generation of circuits that use constants as inputs). Defaults to "".
Expand source code 
class ConstantWireValue1(Wire):
    """Class representing wire carrying constant value 1 used to interconnect components.

    Description of the __init__ method.

    Method fills in desired constant wire's attributes regarding its values for individual representations.

    Args:
        name (str, optional): Custom constant wire name and prefix (used for generation of circuits that use constants as inputs). Defaults to "".
    """
    def __init__(self, name: str = ""):
        self.name = "constant_value_1" if name == "" else name
        self.prefix = "constant_value_1" if name == "" else name
        self.index = 0
        self.value = 1
        self.parent_bus = None

        self.c_const = "0x01"
        self.v_const = "1'b1"
        self.blif_const = "vdd"
        # Constant wire id for CGP generation
        self.cgp_const = 1

    @staticmethod
    def is_const():
        """Information whether wire carries constant value.

        Returns:
            bool: True, because constant wire carries a constant value 1.
        """
        return True

Ancestors

Static methods

def is_const()

Information whether wire carries constant value.

Returns

bool
True, because constant wire carries a constant value 1.
Expand source code 
@staticmethod
def is_const():
    """Information whether wire carries constant value.

    Returns:
        bool: True, because constant wire carries a constant value 1.
    """
    return True

Inherited members

class Wire (name: str,
prefix: str = '',
value: int = 0,
index: int = 0,
parent_bus: object = None)

Class representing basic wire used to interconnect components.

Description of the init method.

Args

name : str
Name of the wire.
prefix : str, optional
Prefix of the wire. Defaultly the same as its name. Defaults to "".
value : int, optional
Value the wire carries (0,1). Defaults to 0.
index : int, optional
Index position of wire (mainly used for indexing within a bus). Defaults to 0.
parent_bus : object, optional
Bus object of which a Wire is a part of (used mainly for proper generation of wire names). Defaults to None.
Expand source code 
class Wire():
    """Class representing basic wire used to interconnect components.

    Description of the __init__ method.

    Args:
        name (str): Name of the wire.
        prefix (str, optional): Prefix of the wire. Defaultly the same as its name. Defaults to "".
        value (int, optional): Value the wire carries (0,1). Defaults to 0.
        index (int, optional): Index position of wire (mainly used for indexing within a bus). Defaults to 0.
        parent_bus (object, optional): Bus object of which a Wire is a part of (used mainly for proper generation of wire names). Defaults to None.
    """
    def __init__(self, name: str, prefix: str = "", value: int = 0, index: int = 0, parent_bus: object = None):
        self.name = name
        self.value = value
        self.index = index
        self.prefix = name if prefix == "" else prefix
        self.parent_bus = parent_bus

    def __str__(self):
        return f"wire{self.name}{self.value}{self.index}"

    @staticmethod
    def is_const():
        """Information whether wire carries constant value.

        Returns:
            bool: False, because basic wire doesn't represent a wire with constant value.
        """
        return False

    def is_buswire(self):
        return self.name.endswith("["+str(self.index)+"]") and self.parent_bus is not None

    """ PYTHON CODE GENERATION """
    def return_wire_value_python_flat(self, offset: int = 0):
        """Retrieves desired bit value from wire represented in Python code variable (object) and bitwise shifts it to desired position for storing it within a bus for flat generation.

        Args:
            offset (int, optional): Used to shift wire value in order to be stored in proper location inside a bus. Defaults to 0.

        Returns:
            str: Python code bitwise shift for storing (constant/variable) wire value at desired offset position.
        """
        if self.is_const():
            return f"(({self.c_const}) << {offset})\n"
        # If wire is part of an input bus (where wire names are concatenated from bus prefix and their index position inside the bus in square brackets)
        # then the wire value is obtained from bitwise shifting the required wire from the parent bus ('parent_bus.prefix' is the same value as 'self.prefix')
        elif self.is_buswire():
            return f"((({self.prefix} >> {self.index}) & 0x01) << {offset})\n"

        else:
            return f"((({self.name} >> 0) & 0x01) << {offset})\n"

    """ C CODE GENERATION """
    def get_declaration_c(self):
        """Wire declaration in C code.

        Returns:
            str: Empty string if C code wire is carrying constant value (constant value is used in situ) or returns C code for declaration and initialization of wire's name.
        """
        if self.is_const():
            return ""
        else:
            return f"  uint8_t {self.name} = {self.value};\n"

    def get_wire_value_c_flat(self):
        """Accesses desired bit value from wire represented in C code variable used for flat generation.

        Returns:
            str: C code bitwise shift to get desired bit value from this wire or wire variable's constant bit value 0/1.
        """
        if self.is_const():
            return f"({self.c_const})"
        # If wire is part of an input bus (where wire names are concatenated from bus prefix and their index position inside the bus in square brackets)
        # then the wire value is obtained from bitwise shifting the required wire from the parent bus ('parent_bus.prefix' is the same value as 'self.prefix')
        elif self.is_buswire() and self.name == f"{self.prefix}[{self.index}]":
            return f"(({self.prefix} >> {self.index}) & 0x01)"
        elif self.is_buswire():
            g = re.match(r"(.*)\[(\d+)\]", self.name)
            if g:
                return f"(({g.group(1)} >> {g.group(2)}) & 0x01)"
            else:
                return f"(({self.name} >> 0) & 0x01)"
        else:
            return f"(({self.name} >> 0) & 0x01)"

    def get_wire_value_c_hier(self):
        """Accesses desired bit value from wire represented in C code variable used for hierarchical generation.

        Returns:
            str: C code bitwise shift to get desired bit value position from this wire or wire variable's constant bit value 0/1.
        """
        if self.is_const():
            return f"({self.c_const})"
        else:
            return f"(({self.prefix} >> {self.index}) & 0x01)"

    def return_wire_value_c_flat(self, offset: int = 0):
        """Retrieves desired bit value from wire represented in C code variable and bitwise shifts it to desired position for storing it within a bus for flat generation.

        Args:
            offset (int, optional): Used to shift wire value in order to be stored in proper location inside a bus. Defaults to 0.

        Returns:
            str: C code bitwise shift for storing (constant/variable) wire value at desired offset position.
        """
        if self.is_const():
            return f"({self.c_const}) << {offset};\n"
        else:
            return f"(({self.name} >> 0) & 0x01ull) << {offset};\n"

    def return_wire_value_c_hier(self, offset: int = 0):
        """Retrieves desired bit value from wire represented in C code variable and bitwise shifts it to desired position for storing it within a bus for hierarchical generation.

        Args:
            offset (int, optional): Used to shift wire value in order to be stored in proper location inside a bus. Defaults to 0.

        Returns:
            str: C code bitwise shift for storing (constant/variable) wire value at desired offset position.
        """
        # If wire is part of an input bus (where wire names are concatenated from bus prefix and their index position inside the bus in square brackets)
        # then the wire value is obtained from bitwise shifting the required wire from the parent bus ('parent_bus.prefix' is the same value as 'self.prefix')
        if self.is_const():
            return f"({self.c_const}) << {offset};\n"
        else:
            return f"(({self.prefix} >> {self.index}) & 0x01ull) << {offset};\n"

    """ VERILOG CODE GENERATION """
    def get_declaration_v_flat(self):
        """Wire declaration for flat Verilog code.

        Returns:
            str: Empty string if Verilog code wire is carrying constant value (constant value is used in situ) or returns Verilog code for declaration and initialization of wire's name.
        """
        if self.is_const():
            return ""
        else:
            return f"  wire {self.name};\n"

    def get_declaration_v_hier(self):
        """Wire declaration for hierarchical Verilog code.

        Returns:
            str: Empty string if Verilog code wire is carrying constant value (constant value is used in situ) or returns Verilog code for declaration and initialization of wire's name.
        """
        if self.is_const():
            return ""
        else:
            return f"  wire [0:0] {self.name};\n"

    def get_wire_value_v_flat(self):
        """Accesses bit value from wire represented in Verilog code variable used for flat generation.

        Returns:
            str: Verilog code to get bit value from this wire or to get constant wire's bit value 0/1.
        """
        if self.is_const():
            return self.v_const
        else:
            return self.name

    def get_wire_value_v_hier(self):
        """Accesses bit value from wire represented in Verilog code variable used for hierarchical generation.

        Returns:
            str: Verilog code to get bit value from this wire or to get constant wire's bit value 0/1.
        """
        if self.is_const():
            return self.v_const
        else:
            return f"{self.prefix}[{self.index}]"

    def return_wire_value_v_flat(self):
        """Retrieves bit value from wire represented in Verilog code variable for storing it within a bus for flat generation.

        Returns:
            str: Verilog code for retrieving (constant/variable) wire value (and assign it at desired bus offset position).
        """
        if self.is_const():
            return f"{self.v_const};\n"
        else:
            return f"{self.name};\n"

    def return_wire_value_v_hier(self):
        """Retrieves bit value from bus's wires and stores them in bus's corresponding Verilog variable at proper offset bit position in the bus for hierarchical generation.

        Returns:
            str: Verilog code for retrieving (constant/variable) wire value used for assigning it into bus represented in Verilog code variable.
        """
        if self.is_const():
            return f"{self.v_const};\n"
        else:
            return f"{self.prefix}[{self.index}];\n"

    """ BLIF CODE GENERATION """
    def get_declaration_blif(self, prefix: str = "", offset: int = 0, array: bool = False):
        """Declaration of wire which is part of a bus in Blif code.

        Declares basic wire name if wire is not part of a bus
        or declares wire by an offset of its position within the bus.

        Args:
            prefix (str, optional): Bus prefix of which this wire is a part off. Defaults to "".
            offset (int, optional): Offset wire location within a bus. Defaults to 0.
            array (bool, optional): Tells whether a basic wire or a wire from within a bus is to be declared. Defaults to False.

        Returns:
            str: Blif code for declaration of a wire.
        """
        if array is True:
            return f"{prefix}[{offset}]"
        else:
            return f"{prefix}"

    def get_wire_declaration_blif(self):
        """Declaration of a single wire in Blif code.
        
        Used for declaration of modul inputs.
        
        Returns:
            str: Blif code for declaration of a wire.
        """
        return f"{self.prefix} "
        
    def get_assign_blif(self, prefix: str, output: bool = False):
        """Assignment of wire value to another desired wire in Blif code.

        This wire's value is either assigned to desired output bus wire (represented by `prefix` name) when `output`=True.
        Otherwise the wire value at desired bus position (represented by `prefix` name) is assigned to this wire when `output`=False.

        Args:
            prefix (str): Name of the source/destination bus wire to be assigned from/to.
            output (bool, optional): Whether `prefix` represents the destination or the source wire in the assignment. Defaultly it symbolizes the source. Defaults to False.

        Returns:
            str: Blif code for assignment of one wire to another.
        """
        if output is True:
            if self.is_const():
                return f".names {self.blif_const} {prefix}\n" + \
                       f"1 1\n"
            else:
                return f".names {self.name} {prefix}\n" + \
                       f"1 1\n"
        else:
            if self.is_const():
                return "\n"
            else:
                return f".names {prefix} {self.name}\n" + \
                       f"1 1\n"

    def get_wire_value_blif(self):
        """Accesses bit value from wire represented in Blif code.

        Used for assignment of specific one bit circuit/gate values to their respective parameters
        in hierarchical Blif subcomponents generation.

        Returns:
            str: Blif code to get bit value from this wire or to get constant wire's bit value 0/1.
        """
        if self.is_const():
            return self.blif_const
        else:
            return self.name

    def __str__(self):
        if self.is_const():
            return f"<w={self.c_const}>"
        elif self.is_buswire():
            return f"<w={self.prefix}[{self.index}]>"
        else:
            return f"<w={self.name}>"

    """ define read-only parameter N"""
    @property
    def N(self):
        return 1

Subclasses

Static methods

def is_const()

Information whether wire carries constant value.

Returns

bool
False, because basic wire doesn't represent a wire with constant value.
Expand source code 
@staticmethod
def is_const():
    """Information whether wire carries constant value.

    Returns:
        bool: False, because basic wire doesn't represent a wire with constant value.
    """
    return False

Instance variables

prop N
Expand source code 
@property
def N(self):
    return 1

Methods

def get_assign_blif(self, prefix: str, output: bool = False)

Assignment of wire value to another desired wire in Blif code.

This wire's value is either assigned to desired output bus wire (represented by prefix name) when output=True. Otherwise the wire value at desired bus position (represented by prefix name) is assigned to this wire when output=False.

Args

prefix : str
Name of the source/destination bus wire to be assigned from/to.
output : bool, optional
Whether prefix represents the destination or the source wire in the assignment. Defaultly it symbolizes the source. Defaults to False.

Returns

str
Blif code for assignment of one wire to another.
Expand source code 
def get_assign_blif(self, prefix: str, output: bool = False):
    """Assignment of wire value to another desired wire in Blif code.

    This wire's value is either assigned to desired output bus wire (represented by `prefix` name) when `output`=True.
    Otherwise the wire value at desired bus position (represented by `prefix` name) is assigned to this wire when `output`=False.

    Args:
        prefix (str): Name of the source/destination bus wire to be assigned from/to.
        output (bool, optional): Whether `prefix` represents the destination or the source wire in the assignment. Defaultly it symbolizes the source. Defaults to False.

    Returns:
        str: Blif code for assignment of one wire to another.
    """
    if output is True:
        if self.is_const():
            return f".names {self.blif_const} {prefix}\n" + \
                   f"1 1\n"
        else:
            return f".names {self.name} {prefix}\n" + \
                   f"1 1\n"
    else:
        if self.is_const():
            return "\n"
        else:
            return f".names {prefix} {self.name}\n" + \
                   f"1 1\n"
def get_declaration_blif(self, prefix: str = '', offset: int = 0, array: bool = False)

Declaration of wire which is part of a bus in Blif code.

Declares basic wire name if wire is not part of a bus or declares wire by an offset of its position within the bus.

Args

prefix : str, optional
Bus prefix of which this wire is a part off. Defaults to "".
offset : int, optional
Offset wire location within a bus. Defaults to 0.
array : bool, optional
Tells whether a basic wire or a wire from within a bus is to be declared. Defaults to False.

Returns

str
Blif code for declaration of a wire.
Expand source code 
def get_declaration_blif(self, prefix: str = "", offset: int = 0, array: bool = False):
    """Declaration of wire which is part of a bus in Blif code.

    Declares basic wire name if wire is not part of a bus
    or declares wire by an offset of its position within the bus.

    Args:
        prefix (str, optional): Bus prefix of which this wire is a part off. Defaults to "".
        offset (int, optional): Offset wire location within a bus. Defaults to 0.
        array (bool, optional): Tells whether a basic wire or a wire from within a bus is to be declared. Defaults to False.

    Returns:
        str: Blif code for declaration of a wire.
    """
    if array is True:
        return f"{prefix}[{offset}]"
    else:
        return f"{prefix}"
def get_declaration_c(self)

Wire declaration in C code.

Returns

str
Empty string if C code wire is carrying constant value (constant value is used in situ) or returns C code for declaration and initialization of wire's name.
Expand source code 
def get_declaration_c(self):
    """Wire declaration in C code.

    Returns:
        str: Empty string if C code wire is carrying constant value (constant value is used in situ) or returns C code for declaration and initialization of wire's name.
    """
    if self.is_const():
        return ""
    else:
        return f"  uint8_t {self.name} = {self.value};\n"
def get_declaration_v_flat(self)

Wire declaration for flat Verilog code.

Returns

str
Empty string if Verilog code wire is carrying constant value (constant value is used in situ) or returns Verilog code for declaration and initialization of wire's name.
Expand source code 
def get_declaration_v_flat(self):
    """Wire declaration for flat Verilog code.

    Returns:
        str: Empty string if Verilog code wire is carrying constant value (constant value is used in situ) or returns Verilog code for declaration and initialization of wire's name.
    """
    if self.is_const():
        return ""
    else:
        return f"  wire {self.name};\n"
def get_declaration_v_hier(self)

Wire declaration for hierarchical Verilog code.

Returns

str
Empty string if Verilog code wire is carrying constant value (constant value is used in situ) or returns Verilog code for declaration and initialization of wire's name.
Expand source code 
def get_declaration_v_hier(self):
    """Wire declaration for hierarchical Verilog code.

    Returns:
        str: Empty string if Verilog code wire is carrying constant value (constant value is used in situ) or returns Verilog code for declaration and initialization of wire's name.
    """
    if self.is_const():
        return ""
    else:
        return f"  wire [0:0] {self.name};\n"
def get_wire_declaration_blif(self)

Declaration of a single wire in Blif code.

Used for declaration of modul inputs.

Returns

str
Blif code for declaration of a wire.
Expand source code 
def get_wire_declaration_blif(self):
    """Declaration of a single wire in Blif code.
    
    Used for declaration of modul inputs.
    
    Returns:
        str: Blif code for declaration of a wire.
    """
    return f"{self.prefix} "
def get_wire_value_blif(self)

Accesses bit value from wire represented in Blif code.

Used for assignment of specific one bit circuit/gate values to their respective parameters in hierarchical Blif subcomponents generation.

Returns

str
Blif code to get bit value from this wire or to get constant wire's bit value 0/1.
Expand source code 
def get_wire_value_blif(self):
    """Accesses bit value from wire represented in Blif code.

    Used for assignment of specific one bit circuit/gate values to their respective parameters
    in hierarchical Blif subcomponents generation.

    Returns:
        str: Blif code to get bit value from this wire or to get constant wire's bit value 0/1.
    """
    if self.is_const():
        return self.blif_const
    else:
        return self.name
def get_wire_value_c_flat(self)

Accesses desired bit value from wire represented in C code variable used for flat generation.

Returns

str
C code bitwise shift to get desired bit value from this wire or wire variable's constant bit value 0/1.
Expand source code 
def get_wire_value_c_flat(self):
    """Accesses desired bit value from wire represented in C code variable used for flat generation.

    Returns:
        str: C code bitwise shift to get desired bit value from this wire or wire variable's constant bit value 0/1.
    """
    if self.is_const():
        return f"({self.c_const})"
    # If wire is part of an input bus (where wire names are concatenated from bus prefix and their index position inside the bus in square brackets)
    # then the wire value is obtained from bitwise shifting the required wire from the parent bus ('parent_bus.prefix' is the same value as 'self.prefix')
    elif self.is_buswire() and self.name == f"{self.prefix}[{self.index}]":
        return f"(({self.prefix} >> {self.index}) & 0x01)"
    elif self.is_buswire():
        g = re.match(r"(.*)\[(\d+)\]", self.name)
        if g:
            return f"(({g.group(1)} >> {g.group(2)}) & 0x01)"
        else:
            return f"(({self.name} >> 0) & 0x01)"
    else:
        return f"(({self.name} >> 0) & 0x01)"
def get_wire_value_c_hier(self)

Accesses desired bit value from wire represented in C code variable used for hierarchical generation.

Returns

str
C code bitwise shift to get desired bit value position from this wire or wire variable's constant bit value 0/1.
Expand source code 
def get_wire_value_c_hier(self):
    """Accesses desired bit value from wire represented in C code variable used for hierarchical generation.

    Returns:
        str: C code bitwise shift to get desired bit value position from this wire or wire variable's constant bit value 0/1.
    """
    if self.is_const():
        return f"({self.c_const})"
    else:
        return f"(({self.prefix} >> {self.index}) & 0x01)"
def get_wire_value_v_flat(self)

Accesses bit value from wire represented in Verilog code variable used for flat generation.

Returns

str
Verilog code to get bit value from this wire or to get constant wire's bit value 0/1.
Expand source code 
def get_wire_value_v_flat(self):
    """Accesses bit value from wire represented in Verilog code variable used for flat generation.

    Returns:
        str: Verilog code to get bit value from this wire or to get constant wire's bit value 0/1.
    """
    if self.is_const():
        return self.v_const
    else:
        return self.name
def get_wire_value_v_hier(self)

Accesses bit value from wire represented in Verilog code variable used for hierarchical generation.

Returns

str
Verilog code to get bit value from this wire or to get constant wire's bit value 0/1.
Expand source code 
def get_wire_value_v_hier(self):
    """Accesses bit value from wire represented in Verilog code variable used for hierarchical generation.

    Returns:
        str: Verilog code to get bit value from this wire or to get constant wire's bit value 0/1.
    """
    if self.is_const():
        return self.v_const
    else:
        return f"{self.prefix}[{self.index}]"
def is_buswire(self)
Expand source code 
def is_buswire(self):
    return self.name.endswith("["+str(self.index)+"]") and self.parent_bus is not None
def return_wire_value_c_flat(self, offset: int = 0)

Retrieves desired bit value from wire represented in C code variable and bitwise shifts it to desired position for storing it within a bus for flat generation.

Args

offset : int, optional
Used to shift wire value in order to be stored in proper location inside a bus. Defaults to 0.

Returns

str
C code bitwise shift for storing (constant/variable) wire value at desired offset position.
Expand source code 
def return_wire_value_c_flat(self, offset: int = 0):
    """Retrieves desired bit value from wire represented in C code variable and bitwise shifts it to desired position for storing it within a bus for flat generation.

    Args:
        offset (int, optional): Used to shift wire value in order to be stored in proper location inside a bus. Defaults to 0.

    Returns:
        str: C code bitwise shift for storing (constant/variable) wire value at desired offset position.
    """
    if self.is_const():
        return f"({self.c_const}) << {offset};\n"
    else:
        return f"(({self.name} >> 0) & 0x01ull) << {offset};\n"
def return_wire_value_c_hier(self, offset: int = 0)

Retrieves desired bit value from wire represented in C code variable and bitwise shifts it to desired position for storing it within a bus for hierarchical generation.

Args

offset : int, optional
Used to shift wire value in order to be stored in proper location inside a bus. Defaults to 0.

Returns

str
C code bitwise shift for storing (constant/variable) wire value at desired offset position.
Expand source code 
def return_wire_value_c_hier(self, offset: int = 0):
    """Retrieves desired bit value from wire represented in C code variable and bitwise shifts it to desired position for storing it within a bus for hierarchical generation.

    Args:
        offset (int, optional): Used to shift wire value in order to be stored in proper location inside a bus. Defaults to 0.

    Returns:
        str: C code bitwise shift for storing (constant/variable) wire value at desired offset position.
    """
    # If wire is part of an input bus (where wire names are concatenated from bus prefix and their index position inside the bus in square brackets)
    # then the wire value is obtained from bitwise shifting the required wire from the parent bus ('parent_bus.prefix' is the same value as 'self.prefix')
    if self.is_const():
        return f"({self.c_const}) << {offset};\n"
    else:
        return f"(({self.prefix} >> {self.index}) & 0x01ull) << {offset};\n"
def return_wire_value_python_flat(self, offset: int = 0)

Retrieves desired bit value from wire represented in Python code variable (object) and bitwise shifts it to desired position for storing it within a bus for flat generation.

Args

offset : int, optional
Used to shift wire value in order to be stored in proper location inside a bus. Defaults to 0.

Returns

str
Python code bitwise shift for storing (constant/variable) wire value at desired offset position.
Expand source code 
def return_wire_value_python_flat(self, offset: int = 0):
    """Retrieves desired bit value from wire represented in Python code variable (object) and bitwise shifts it to desired position for storing it within a bus for flat generation.

    Args:
        offset (int, optional): Used to shift wire value in order to be stored in proper location inside a bus. Defaults to 0.

    Returns:
        str: Python code bitwise shift for storing (constant/variable) wire value at desired offset position.
    """
    if self.is_const():
        return f"(({self.c_const}) << {offset})\n"
    # If wire is part of an input bus (where wire names are concatenated from bus prefix and their index position inside the bus in square brackets)
    # then the wire value is obtained from bitwise shifting the required wire from the parent bus ('parent_bus.prefix' is the same value as 'self.prefix')
    elif self.is_buswire():
        return f"((({self.prefix} >> {self.index}) & 0x01) << {offset})\n"

    else:
        return f"((({self.name} >> 0) & 0x01) << {offset})\n"
def return_wire_value_v_flat(self)

Retrieves bit value from wire represented in Verilog code variable for storing it within a bus for flat generation.

Returns

str
Verilog code for retrieving (constant/variable) wire value (and assign it at desired bus offset position).
Expand source code 
def return_wire_value_v_flat(self):
    """Retrieves bit value from wire represented in Verilog code variable for storing it within a bus for flat generation.

    Returns:
        str: Verilog code for retrieving (constant/variable) wire value (and assign it at desired bus offset position).
    """
    if self.is_const():
        return f"{self.v_const};\n"
    else:
        return f"{self.name};\n"
def return_wire_value_v_hier(self)

Retrieves bit value from bus's wires and stores them in bus's corresponding Verilog variable at proper offset bit position in the bus for hierarchical generation.

Returns

str
Verilog code for retrieving (constant/variable) wire value used for assigning it into bus represented in Verilog code variable.
Expand source code 
def return_wire_value_v_hier(self):
    """Retrieves bit value from bus's wires and stores them in bus's corresponding Verilog variable at proper offset bit position in the bus for hierarchical generation.

    Returns:
        str: Verilog code for retrieving (constant/variable) wire value used for assigning it into bus represented in Verilog code variable.
    """
    if self.is_const():
        return f"{self.v_const};\n"
    else:
        return f"{self.prefix}[{self.index}];\n"