Struct x86_64_xsave::fxsave::domain::X87FloatingPointUnitControlWord

#[repr(transparent)]
pub struct X87FloatingPointUnitControlWord(_);

See Figure 8-6 in the Intel® 64 and IA-32 Architectures Software Developer’s Manual, Volume 1, for the layout of the x87 FPU Control Word.

Methods

impl X87FloatingPointUnitControlWord

pub fn save_after_raising_any_pending_unmasked_floating_point_exceptions(
) -> Self

Reads the control word after raising any pending unmasked floating point exceptions.

Uses the FSTCW instruction; see https://github.com/HJLebbink/asm-dude/wiki/FSTCW_FNSTCW.

pub fn save() -> Self

Reads the control word.

Uses the FNSTCW instruction; see https://github.com/HJLebbink/asm-dude/wiki/FSTCW_FNSTCW.

pub fn restore(self)

Writes the control word.

Uses the FLDCW instruction; see https://github.com/HJLebbink/asm-dude/wiki/FLDCW.

pub fn exception_flag_mask_bit_invalid_operation(self) -> bool

Invalid Operation, IM.

One of the 6 exception flag mask bits.

When set (true), the corresponding x87 FPU floating-point exception is blocked from being generated.

pub fn exception_flag_mask_bit_denormal_operation(self) -> bool

Denormal Operation, DM.

One of the 6 exception flag mask bits.

When set (true), the corresponding x87 FPU floating-point exception is blocked from being generated.

pub fn exception_flag_mask_bit_zero_divide(self) -> bool

Zero Divide, ZM.

One of the 6 exception flag mask bits.

When set (true), the corresponding x87 FPU floating-point exception is blocked from being generated.

pub fn exception_flag_mask_bit_overflow(self) -> bool

Overflow, OM.

One of the 6 exception flag mask bits.

When set (true), the corresponding x87 FPU floating-point exception is blocked from being generated.

pub fn exception_flag_mask_bit_underflow(self) -> bool

Underflow, UM.

One of the 6 exception flag mask bits.

When set (true), the corresponding x87 FPU floating-point exception is blocked from being generated.

pub fn exception_flag_mask_bit_precision(self) -> bool

Precision, PM.

One of the 6 exception flag mask bits.

When set (true), the corresponding x87 FPU floating-point exception is blocked from being generated.

pub fn precision_control(self) -> PrecisionControl

Precision Control, PC.

pub fn rounding_control(self) -> RoundingControl

Rounding Control, RC.

A 2-bit (u2) value.

pub fn infinity_control(self) -> bool

Infinity Control, X, flag.

This is provided for compatibility with the Intel 287 Math Coprocessor; it is not meaningful for later version x87 FPU coprocessors or IA-32 processors.

Trait Implementations

impl Clone for X87FloatingPointUnitControlWord

fn clone(&self) -> X87FloatingPointUnitControlWord

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq<X87FloatingPointUnitControlWord> for X87FloatingPointUnitControlWord

fn eq(&self, other: &X87FloatingPointUnitControlWord) -> bool

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

fn ne(&self, other: &X87FloatingPointUnitControlWord) -> bool

This method tests for !=.

impl PartialOrd<X87FloatingPointUnitControlWord> for X87FloatingPointUnitControlWord

fn partial_cmp(
    &self,
    other: &X87FloatingPointUnitControlWord
) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &X87FloatingPointUnitControlWord) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &X87FloatingPointUnitControlWord) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &X87FloatingPointUnitControlWord) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &X87FloatingPointUnitControlWord) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for X87FloatingPointUnitControlWord

impl Ord for X87FloatingPointUnitControlWord

fn cmp(&self, other: &X87FloatingPointUnitControlWord) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl Copy for X87FloatingPointUnitControlWord

impl Default for X87FloatingPointUnitControlWord

fn default() -> X87FloatingPointUnitControlWord

Returns the "default value" for a type.

impl Debug for X87FloatingPointUnitControlWord

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

Formats the value using the given formatter.

impl Hash for X87FloatingPointUnitControlWord

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].