Enum Operand 

pub enum Operand {
    Reg(Register),
    Imm {
        value: i64,
        size: u8,
    },
    Mem {
        base: Option<Register>,
        index: Option<Register>,
        scale: u8,
        displacement: i32,
    },
    Label(String),
}

操作数枚举，表示汇编指令中的各种操作数类型

Variants

Reg(Register)

寄存器操作数

Imm

立即数操作数，包含值和大小

Fields

value: i64

立即数的值

size: u8

立即数的大小（位数）

Mem

内存操作数，包含基址、索引、比例和位移

Fields

base: Option<Register>

基址寄存器

index: Option<Register>

索引寄存器

scale: u8

比例因子

displacement: i32

位移量

Label(String)

标签操作数

Implementations

impl Operand

pub fn reg(reg: Register) -> Self

创建寄存器操作数

pub fn imm(value: i64, size: u8) -> Self

创建立即数操作数

pub fn mem( base: Option<Register>, index: Option<Register>, scale: u8, displacement: i32, ) -> Self

创建内存操作数

pub fn label(name: String) -> Self

创建标签操作数

Trait Implementations

impl Clone for Operand

fn clone(&self) -> Operand

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Operand

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

Formats the value using the given formatter.

impl Display for Operand

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

格式化显示操作数

impl PartialEq for Operand

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Operand