Struct tartan_arch::aarch64::float::ControlRegister

#[repr(transparent)]
pub struct ControlRegister(_);

Available on AArch64 only.

FPCR: Influences floating-point instruction execution.

Implementations

impl ControlRegister

pub fn alternative_half_precision_format(&self) -> bool

AHP: Use an alternative format for half-precision floats when converting to/from other formats. Otherwise, use the IEEE half-precision format.

pub fn default_nan(&self) -> bool

DN: Always use the default encoding for NaN results. Otherwise, use the encoding from an input operand.

pub fn flush_to_zero(&self) -> bool

FZ: When a result would be denormal, yield zero instead. Otherwise, use the IEEE 754 behavior.

pub fn rounding_mode(&self) -> RoundingMode

RMode: The IEEE 754 rounding mode in use.

pub fn flush_to_zero_half_precision(&self) -> bool

FZ16: Counterpart to flush_to_zero for half-precision calculations.

Requires FEAT_FP16.

pub fn trapped_exceptions(&self) -> Exceptions

For each type of floating-point exception, defines whether the error will be trapped. If false, the corresponding flag in StatusRegister::exceptions will be set instead.

pub fn set_alternative_half_precision_format(&mut self, value: bool)

AHP: Use an alternative format for half-precision floats when converting to/from other formats. Otherwise, use the IEEE half-precision format.

pub fn with_alternative_half_precision_format(&mut self, value: bool) -> Self

AHP: Use an alternative format for half-precision floats when converting to/from other formats. Otherwise, use the IEEE half-precision format.

pub fn set_default_nan(&mut self, value: bool)

DN: Always use the default encoding for NaN results. Otherwise, use the encoding from an input operand.

pub fn with_default_nan(&mut self, value: bool) -> Self

DN: Always use the default encoding for NaN results. Otherwise, use the encoding from an input operand.

pub fn set_flush_to_zero(&mut self, value: bool)

FZ: When a result would be denormal, yield zero instead. Otherwise, use the IEEE 754 behavior.

pub fn with_flush_to_zero(&mut self, value: bool) -> Self

FZ: When a result would be denormal, yield zero instead. Otherwise, use the IEEE 754 behavior.

pub fn set_rounding_mode(&mut self, value: RoundingMode)

RMode: The IEEE 754 rounding mode in use.

pub fn with_rounding_mode(&self, value: RoundingMode) -> Self

RMode: The IEEE 754 rounding mode in use.

pub fn set_flush_to_zero_half_precision(&mut self, value: bool)

FZ16: Counterpart to flush_to_zero for half-precision calculations.

Requires FEAT_FP16.

pub fn with_flush_to_zero_half_precision(&mut self, value: bool) -> Self

FZ16: Counterpart to flush_to_zero for half-precision calculations.

Requires FEAT_FP16.

pub fn set_trapped_exceptions(&mut self, value: Exceptions)

For each type of floating-point exception, defines whether the error will be trapped. If false, the corresponding flag in StatusRegister::exceptions will be set instead.

pub fn with_trapped_exceptions(&self, value: Exceptions) -> Self

For each type of floating-point exception, defines whether the error will be trapped. If false, the corresponding flag in StatusRegister::exceptions will be set instead.

impl ControlRegister

pub fn get() -> Self

Retrieve the current value of this register

pub fn set(value: Self)

Update the register to the given value.

Trait Implementations

impl Bitfield<u64> for ControlRegister

fn new(value: T) -> Self

Construct a new bitfield type from its underlying representation

fn value(self) -> T

Unwrap the bitfield into its underlying representation

impl Clone for ControlRegister

fn clone(&self) -> ControlRegister

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ControlRegister

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ControlRegister

fn default() -> ControlRegister

Returns the “default value” for a type.

impl From<ControlRegister> for u64

fn from(val: ControlRegister) -> Self

Converts to this type from the input type.

impl From<u64> for ControlRegister

fn from(val: u64) -> Self

Converts to this type from the input type.

impl PartialEq<ControlRegister> for ControlRegister

fn eq(&self, other: &ControlRegister) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ControlRegister

impl Eq for ControlRegister

impl StructuralEq for ControlRegister

impl StructuralPartialEq for ControlRegister