Struct x86_64::registers::rflags::RFlags

pub struct RFlags { /* fields omitted */ }

The RFLAGS register.

Methods

impl RFlags

pub const ID: RFlags

ID: RFlags = RFlags{bits: 1 << 21,}

Processor feature identification flag.

If this flag is modifiable, the CPU supports CPUID.

pub const VIRTUAL_INTERRUPT_PENDING: RFlags

VIRTUAL_INTERRUPT_PENDING: RFlags = RFlags{bits: 1 << 20,}

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_INTERRUPT: RFlags = RFlags{bits: 1 << 19,}

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

ALIGNMENT_CHECK: RFlags = RFlags{bits: 1 << 18,}

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

pub const VIRTUAL_8086_MODE: RFlags

VIRTUAL_8086_MODE: RFlags = RFlags{bits: 1 << 17,}

Enable the virtual-8086 mode.

pub const RESUME_FLAG: RFlags

RESUME_FLAG: RFlags = RFlags{bits: 1 << 16,}

Allows to restart an instruction following an instrucion breakpoint.

pub const NESTED_TASK: RFlags

NESTED_TASK: RFlags = RFlags{bits: 1 << 14,}

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

pub const IOPL_HIGH: RFlags

IOPL_HIGH: RFlags = RFlags{bits: 1 << 13,}

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

IOPL_LOW: RFlags = RFlags{bits: 1 << 12,}

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

OVERFLOW_FLAG: RFlags = RFlags{bits: 1 << 11,}

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

DIRECTION_FLAG: RFlags = RFlags{bits: 1 << 10,}

Determines the order in which strings are processed.

pub const INTERRUPT_FLAG: RFlags

INTERRUPT_FLAG: RFlags = RFlags{bits: 1 << 9,}

Enable interrupts.

pub const TRAP_FLAG: RFlags

TRAP_FLAG: RFlags = RFlags{bits: 1 << 8,}

Enable single-step mode for debugging.

pub const SIGN_FLAG: RFlags

SIGN_FLAG: RFlags = RFlags{bits: 1 << 7,}

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

pub const ZERO_FLAG: RFlags

ZERO_FLAG: RFlags = RFlags{bits: 1 << 6,}

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

pub const AUXILIARY_CARRY_FLAG: RFlags

AUXILIARY_CARRY_FLAG: RFlags = RFlags{bits: 1 << 4,}

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

pub const PARITY_FLAG: RFlags

PARITY_FLAG: RFlags = RFlags{bits: 1 << 2,}

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

pub const CARRY_FLAG: RFlags

CARRY_FLAG: RFlags = RFlags{bits: 1 << 0,}

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

pub fn empty() -> RFlags

Returns an empty set of flags.

pub fn all() -> RFlags

Returns the set containing all flags.

pub 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 fn from_bits_truncate(bits: u64) -> RFlags

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

pub fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

pub fn is_all(&self) -> bool

Returns true if all flags are currently set.

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

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

pub 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 Copy for RFlags

impl PartialEq 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 Eq for RFlags

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 PartialOrd for RFlags

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

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

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

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

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

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

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

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

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

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

impl Ord for RFlags

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

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

Formats the value using the given formatter.

impl Binary for RFlags

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

Formats the value using the given formatter.

impl Octal for RFlags

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

Formats the value using the given formatter.

impl LowerHex for RFlags

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

Formats the value using the given formatter.

impl UpperHex for RFlags

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

Formats the value using the given formatter.

impl BitOr for RFlags

type Output = RFlags

The resulting type after applying the | operator.

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

Returns the union of the two sets of flags.

impl BitOrAssign for RFlags

fn bitor_assign(&mut self, other: RFlags)

Adds the set of flags.

impl BitXor for RFlags

type Output = RFlags

The resulting type after applying the ^ operator.

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

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

impl BitXorAssign for RFlags

fn bitxor_assign(&mut self, other: RFlags)

Toggles the set of flags.

impl BitAnd for RFlags

type Output = RFlags

The resulting type after applying the & operator.

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

Returns the intersection between the two sets of flags.

impl BitAndAssign for RFlags

fn bitand_assign(&mut self, other: RFlags)

Disables all flags disabled in the set.

impl Sub for RFlags

type Output = RFlags

The resulting type after applying the - operator.

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

Returns the set difference of the two sets of flags.

impl SubAssign for RFlags

fn sub_assign(&mut self, other: RFlags)

Disables all flags enabled in the set.

impl Not for RFlags

type Output = RFlags

The resulting type after applying the ! operator.

fn not(self) -> RFlags

Returns the complement of this set of flags.

impl Extend<RFlags> for RFlags

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

Extends a collection with the contents of an iterator.

impl FromIterator<RFlags> for RFlags

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

Creates a value from an iterator.