Struct RexFlags

pub struct RexFlags(/* private fields */);

A small bit field to record a REX prefix specification:

• bit 0 set to 1 indicates REX.W must be 0 (cleared).
• bit 1 set to 1 indicates the REX prefix must always be emitted.

Implementations

impl RexFlags

pub fn set_w() -> Self

By default, set the W field, and don’t always emit.

pub fn clear_w() -> Self

Creates a new REX prefix for which the REX.W bit will be cleared.

pub fn must_clear_w(self) -> bool

True if 64-bit operands are used.

pub fn always_emit(&mut self) -> &mut Self

Require that the REX prefix is emitted.

pub fn must_always_emit(self) -> bool

True if the REX prefix must always be emitted.

pub fn always_emit_if_8bit_needed(&mut self, enc: u8)

Force emission of the REX byte if the register is: rsp, rbp, rsi, rdi.

pub fn emit_one_op(self, sink: &mut impl CodeSink, enc_e: u8)

Emit a unary instruction.

pub fn emit_two_op(self, sink: &mut impl CodeSink, enc_g: u8, enc_e: u8)

Emit a binary instruction.

pub fn emit_three_op( self, sink: &mut impl CodeSink, enc_g: u8, enc_index: u8, enc_base: u8, )

Emit a ternary instruction.

Trait Implementations

impl Clone for RexFlags

fn clone(&self) -> RexFlags

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for RexFlags