tivars.types.real.RealEntry

class documentation

class RealEntry(TIEntry): (source)

Known subclasses: tivars.types.real.TIReal, tivars.types.real.TIRealRadical

Constructor: RealEntry(init, name, version, archived, data)

View In Hierarchy

Base class for real numeric types

This class handles floating-point types as well as the exact formats for the TI-83PCE and other newer models. The format for these types varies and is handled by the subtype_id, the first six bits of the first data byte.

Two RealEntry types are used to form a single ComplexEntry corresponding to a complex number.

Method __float__ Undocumented
Method __format__ Undocumented
Method __init__ Creates an empty entry with specified meta and data values
Method __int__ Undocumented
Method __neg__ Undocumented
Method calc_data The data section of the component which is loaded on-calc
Method clear Clears this entry's data
Method coerce Coerces this component to a subclass if possible using the component's type ID
Method decimal No summary
Method float No summary
Method get_min_os Determines the minimum OS that supports this entry's data
Method graph_bit Whether the entry is used during graphing
Method json_number Encoder for JSON implementations with potentially low precision
Method load_decimal Loads a decimal into this real number
Method load_float Loads a float into this real number, upcasting as necessary
Method sign_bit The sign bit for the number
Method subtype_id The subtype ID of the number
Method supported_by Determines whether a given model supports this entry
Class Variable extension The base file extension used for this entry
Class Variable imag_subtype_id The subtype ID this type receives if used as an imaginary part
Class Variable is_exact Whether this numeric type is exact
Class Variable min_calc_data_length The minimum length of this entry's data
Class Variable min_exponent The smallest allowed floating point exponent
Property sign The sign of this real number
Property subtype The subtype of this real number

Inherited from TIEntry:

Class Raw No class docstring; 3/3 properties, 0/1 class variable, 1/1 method documented
Class Method get_extension Determines the file extension for a targeted model based on its contents
Class Method get_type Gets the subclass corresponding to a type ID, type name, or file extension if one is registered
Class Method open Creates a new entry from a file given a filename
Static Method next_entry_length Helper function to determine the length of the next entry in a bytestream
Method __iter__ No summary
Method __len__ No summary
Method archive Archives this entry
Method archived Whether the entry is archived
Method bytes The bytes contained in this entry, without any var file header or metadata.
Method dict No summary
Method export Exports this entry to a TIVarFile with a specified name and header
Method get_version Determines the version byte corresponding to given data for this entry type
Method load_bytes Loads a byte string or bytestream into this entry
Method load_data_section Loads the data of this entry from a bytestream
Method load_dict Loads this component from a JSON dictionary representation
Method load_from_file Loads this entry from a file given a file pointer and offset
Method meta_length The length of the meta section of the entry
Method name The name of the entry
Method save Saves this entry as a var file in the current directory given a filename and optional header and targeted model
Method summary No summary
Method type_id The type ID of the entry
Method unarchive Unarchives this entry
Method version The version number of the entry
Class Variable base_meta_length Undocumented
Class Variable flash_meta_length Undocumented
Class Variable flash_only Whether this entry only supports flash chips
Class Variable leading_data_bytes Bytes that always begin this entry's data
Class Variable leading_name_byte Byte that always begins the name of this entry
Class Variable versions The possible versions of this entry
Instance Variable raw Undocumented
Property calc_data_length The length of the data section of the entry
Property flash_bytes The flash bytes of this entry if they exist
Property for_flash Whether this entry supports flash chips
Property meta The meta section of this entry
Method __init_subclass__ Undocumented
Class Variable _type_ids Undocumented

Inherited from TIComponent (via TIEntry):

Class Method get Converts bytes -> TIComponent
Class Method register Registers a subtype with this class for coercion
Class Method set Converts TIComponent -> bytes
Method __bool__ No summary
Method __bytes__ No summary
Method __copy__ No summary
Method __eq__ Determines if two components are the same type and have the same bytes
Method __str__ No summary
Method data The component's user data
Method json No summary
Method load_json Loads this component from a JSON dictionary representation
Method load_string Loads this component from a string representation
Method string No summary
Method update Updates this component's metadata
Property is_empty Whether this component's data is empty
Class Variable _type_id Undocumented

Inherited from Dock (via TIEntry, TIComponent):

Method load Loads data into an instance by delegating to Loader methods based on the input's type
Class Variable loaders Undocumented
def __float__(self) -> float: (source)

Undocumented

def __format__(self, format_spec: str) -> str: (source)
overrides tivars.file.TIComponent.__format__
overridden in tivars.types.real.TIRealFraction, tivars.types.real.TIRealPi, tivars.types.real.TIRealRadical

Undocumented

def __init__(self, init=None, *, name: str = 'A', version: int = None, archived: bool = None, data: bytes = None): (source)
overrides tivars.var.TIEntry.__init__

Creates an empty entry with specified meta and data values

Parameters
initValues to initialize the entry's data (defaults to None)
name:strThe name of the entry (defaults to a valid default name)
version:intThe entry's version (defaults to None)
archived:boolWhether the entry is archived (defaults to entry's default state on-calc)
data:bytesThe entry's data (defaults to empty)
def __int__(self) -> int: (source)

Undocumented

def __neg__(self) -> RealEntry: (source)

Undocumented

def calc_data(self) -> bytearray: (source)
overrides tivars.file.TIComponent.calc_data
overridden in tivars.types.real.TIReal, tivars.types.real.TIRealRadical

The data section of the component which is loaded on-calc

def clear(self): (source)
overrides tivars.var.TIEntry.clear

Clears this entry's data

def coerce(self): (source)
overrides tivars.file.TIComponent.coerce

Coerces this component to a subclass if possible using the component's type ID

Valid types must be registered to be considered for coercion.

def decimal(self) -> Decimal: (source)
overridden in tivars.types.real.TIReal, tivars.types.real.TIRealRadical
Returns
DecimalA decimal object corresponding to this real number
def float(self) -> float: (source)
Returns
floatThe float corresponding to this real number
def get_min_os(self) -> OsVersion: (source)
overrides tivars.var.TIEntry.get_min_os

Determines the minimum OS that supports this entry's data

Returns
OsVersionThe minimum OsVersion this entry supports
@View(calc_data, Bits[6:7])[0:1]
def graph_bit(self) -> int: (source)

Whether the entry is used during graphing

def json_number(self) -> float | str: (source)

Encoder for JSON implementations with potentially low precision

Returns
float | strA float or str depending on whether this real number can be stored in a single-precision float
def load_decimal(self, decimal: Decimal): (source)
overridden in tivars.types.real.TIRealPi, tivars.types.real.TIRealRadical

Loads a decimal into this real number

Parameters
decimal:DecimalThe decimal to load
def load_float(self, decimal: float): (source)

Loads a float into this real number, upcasting as necessary

Parameters
decimal:floatThe float to load
@View(calc_data, Bits[7:8])[0:1]
def sign_bit(self) -> int: (source)

The sign bit for the number

If this bit is used, the number is negative when set.

@View(calc_data, Bits[0:6])[0:1]
def subtype_id(self) -> bytes: (source)

The subtype ID of the number

Differentiates the exact radical and fraction formats.

def supported_by(self, model: TIModel) -> bool: (source)
overrides tivars.var.TIEntry.supported_by

Determines whether a given model supports this entry

Parameters
model:TIModelThe model to check support for
Returns
boolWhether model supports this entry
extension: str = (source)
overrides tivars.var.TIEntry.extension

The base file extension used for this entry

imag_subtype_id: int = (source)
overridden in tivars.types.real.TIReal, tivars.types.real.TIRealRadical

The subtype ID this type receives if used as an imaginary part

is_exact: bool = (source)
overridden in tivars.types.real.TIRealFraction, tivars.types.real.TIRealPi, tivars.types.real.TIRealRadical

Whether this numeric type is exact

min_calc_data_length: int = (source)
overrides tivars.var.TIEntry.min_calc_data_length
overridden in tivars.types.real.TIReal, tivars.types.real.TIRealRadical

The minimum length of this entry's data

If an entry's data is fixed in size, this value is necessarily the length of the data

min_exponent: int = (source)
overridden in tivars.types.real.TIRealFraction, tivars.types.real.TIRealPi

The smallest allowed floating point exponent

sign: int = (source)
overridden in tivars.types.real.TIRealRadical

The sign of this real number

subtype: type[RealEntry] = (source)

The subtype of this real number