Struct x86_64::registers::rflags::RFlags

pub struct RFlags { /* fields omitted */ }

The RFLAGS register.

Implementations

impl RFlags

pub const ID: RFlags

Processor feature identification flag.

If this flag is modifiable, the CPU supports CPUID.

pub const VIRTUAL_INTERRUPT_PENDING: RFlags

Indicates that an external, maskable interrupt is pending.

Used when virtual-8086 mode extensions (CR4.VME) or protected-mode virtual interrupts (CR4.PVI) are activated.

pub const VIRTUAL_INTERRUPT: RFlags

Virtual image of the INTERRUPT_FLAG bit.

Used when virtual-8086 mode extensions (CR4.VME) or protected-mode virtual interrupts (CR4.PVI) are activated.

pub const ALIGNMENT_CHECK: RFlags

Enable automatic alignment checking if CR0.AM is set. Only works if CPL is 3.

pub const VIRTUAL_8086_MODE: RFlags

Enable the virtual-8086 mode.

pub const RESUME_FLAG: RFlags

Allows to restart an instruction following an instrucion breakpoint.

pub const NESTED_TASK: RFlags

Used by iret in hardware task switch mode to determine if current task is nested.

pub const IOPL_HIGH: RFlags

The high bit of the I/O Privilege Level field.

Specifies the privilege level required for executing I/O address-space instructions.

pub const IOPL_LOW: RFlags

The low bit of the I/O Privilege Level field.

Specifies the privilege level required for executing I/O address-space instructions.

pub const OVERFLOW_FLAG: RFlags

Set by hardware to indicate that the sign bit of the result of the last signed integer operation differs from the source operands.

pub const DIRECTION_FLAG: RFlags

Determines the order in which strings are processed.

pub const INTERRUPT_FLAG: RFlags

Enable interrupts.

pub const TRAP_FLAG: RFlags

Enable single-step mode for debugging.

pub const SIGN_FLAG: RFlags

Set by hardware if last arithmetic operation resulted in a negative value.

pub const ZERO_FLAG: RFlags

Set by hardware if last arithmetic operation resulted in a zero value.

pub const AUXILIARY_CARRY_FLAG: RFlags

Set by hardware if last arithmetic operation generated a carry ouf of bit 3 of the result.

pub const PARITY_FLAG: RFlags

Set by hardware if last result has an even number of 1 bits (only for some operations).

pub const CARRY_FLAG: RFlags

Set by hardware if last arithmetic operation generated a carry out of the most-significant bit of the result.

pub const fn empty() -> RFlags

Returns an empty set of flags

pub const fn all() -> RFlags

Returns the set containing all flags.

pub const fn bits(&self) -> u64

Returns the raw value of the flags currently stored.

pub fn from_bits(bits: u64) -> Option<RFlags>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

pub const fn from_bits_truncate(bits: u64) -> RFlags

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

pub const unsafe fn from_bits_unchecked(bits: u64) -> RFlags

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).

pub const fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

pub const fn is_all(&self) -> bool

Returns true if all flags are currently set.

pub const fn intersects(&self, other: RFlags) -> bool

Returns true if there are flags common to both self and other.

pub const fn contains(&self, other: RFlags) -> bool

Returns true all of the flags in other are contained within self.

pub fn insert(&mut self, other: RFlags)

Inserts the specified flags in-place.

pub fn remove(&mut self, other: RFlags)

Removes the specified flags in-place.

pub fn toggle(&mut self, other: RFlags)

Toggles the specified flags in-place.

pub fn set(&mut self, other: RFlags, value: bool)

Inserts or removes the specified flags depending on the passed value.

Trait Implementations

impl Binary for RFlags

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

Formats the value using the given formatter.

impl BitAnd<RFlags> for RFlags

fn bitand(self, other: RFlags) -> RFlags

Returns the intersection between the two sets of flags.

type Output = RFlags

The resulting type after applying the & operator.

impl BitAndAssign<RFlags> for RFlags

fn bitand_assign(&mut self, other: RFlags)

Disables all flags disabled in the set.

impl BitOr<RFlags> for RFlags

fn bitor(self, other: RFlags) -> RFlags

Returns the union of the two sets of flags.

type Output = RFlags

The resulting type after applying the | operator.

impl BitOrAssign<RFlags> for RFlags

fn bitor_assign(&mut self, other: RFlags)

Adds the set of flags.

impl BitXor<RFlags> for RFlags

fn bitxor(self, other: RFlags) -> RFlags

Returns the left flags, but with all the right flags toggled.

type Output = RFlags

The resulting type after applying the ^ operator.

impl BitXorAssign<RFlags> for RFlags

fn bitxor_assign(&mut self, other: RFlags)

Toggles the set of flags.

impl Clone for RFlags

fn clone(&self) -> RFlags

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RFlags

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

Formats the value using the given formatter.

impl Extend<RFlags> for RFlags

fn extend<T: IntoIterator<Item = RFlags>>(&mut self, iterator: T)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬 This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬 This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl FromIterator<RFlags> for RFlags

fn from_iter<T: IntoIterator<Item = RFlags>>(iterator: T) -> RFlags

Creates a value from an iterator.

impl Hash for RFlags

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.

impl LowerHex for RFlags

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

Formats the value using the given formatter.

impl Not for RFlags

fn not(self) -> RFlags

Returns the complement of this set of flags.

type Output = RFlags

The resulting type after applying the ! operator.

impl Octal for RFlags

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

Formats the value using the given formatter.

impl Ord for RFlags

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

This method returns an Ordering between self and other.

#[must_use]

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

Compares and returns the maximum of two values.

#[must_use]

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

Compares and returns the minimum of two values.

#[must_use]

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<RFlags> for RFlags

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

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

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

This method tests for !=.

impl PartialOrd<RFlags> for RFlags

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

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

#[must_use]

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

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

#[must_use]

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

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

#[must_use]

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

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

#[must_use]

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

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

impl Sub<RFlags> for RFlags

fn sub(self, other: RFlags) -> RFlags

Returns the set difference of the two sets of flags.

type Output = RFlags

The resulting type after applying the - operator.

impl SubAssign<RFlags> for RFlags

fn sub_assign(&mut self, other: RFlags)

Disables all flags enabled in the set.

impl UpperHex for RFlags

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

Formats the value using the given formatter.

impl Copy for RFlags

impl Eq for RFlags

impl StructuralEq for RFlags

impl StructuralPartialEq for RFlags