Struct x86_64_xsave::fxsave::domain::FloatingPointUnitOpcode

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

The x87 FPU stores in the 11-bit x87 FPU opcode register (FOP) the opcode of the last x87 non-control instruction executed that incurred an unmasked x87 exception. This information provides state information for exception handlers.

Only the first and second opcode bytes (after all prefixes) are stored in the x87 FPU opcode register.

Since the upper 5 bits of the first opcode byte are the same for all floating-point opcodes (0b11011), only the lower 3 bits of this byte are stored in the opcode register.

Methods

impl FloatingPointUnitOpcode

pub fn first_opcode_byte(self) -> u8

The first opcode byte.

pub fn second_opcode_byte(self) -> u8

The second opcode byte.

Trait Implementations

impl Clone for FloatingPointUnitOpcode

fn clone(&self) -> FloatingPointUnitOpcode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq<FloatingPointUnitOpcode> for FloatingPointUnitOpcode

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

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

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

This method tests for !=.

impl PartialOrd<FloatingPointUnitOpcode> for FloatingPointUnitOpcode

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

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

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

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

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

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

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

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

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

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

impl Eq for FloatingPointUnitOpcode

impl Ord for FloatingPointUnitOpcode

fn cmp(&self, other: &FloatingPointUnitOpcode) -> 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 FloatingPointUnitOpcode

impl Default for FloatingPointUnitOpcode

fn default() -> FloatingPointUnitOpcode

Returns the "default value" for a type.

impl Debug for FloatingPointUnitOpcode

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

Formats the value using the given formatter.

impl Hash for FloatingPointUnitOpcode

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].