Struct Opcode 

#[repr(C, packed(1))]
pub struct Opcode {
    pub category: u8,
    pub command: u8,
    pub flags: u16,
    pub a: u32,
    pub b: u32,
    pub c: u32,
}

A fixed-size 16-byte opcode.

This struct intentionally mirrors the wire layout and is #[repr(C, packed)] per the specification. Because it is packed, fields may be unaligned; always read fields through the accessor methods (which use unaligned reads) rather than by value.

Fields

category: u8

Opcode category (see constants::Category).

command: u8

Command within the category (see constants::Command*).

flags: u16

Category/command-specific flags.

a: u32

Primary payload.

b: u32

Secondary payload.

c: u32

Tertiary payload.

Implementations

impl Opcode

pub const SIZE: usize = OPCODE_SIZE

Byte size of an opcode (16).

pub const fn new( category: u8, command: u8, flags: u16, a: u32, b: u32, c: u32, ) -> Self

Construct an opcode from raw fields.

pub fn category(&self) -> u8

The opcode category.

pub fn command(&self) -> u8

The command within the category.

pub fn flags(&self) -> u16

The 16-bit flags word.

pub fn a(&self) -> u32

Primary payload (little-endian u32).

pub fn b(&self) -> u32

Secondary payload (little-endian u32).

pub fn c(&self) -> u32

Tertiary payload (little-endian u32).

pub fn a_f32(&self) -> f32

Interpret A as an f32 (bit-preserving).

pub fn b_f32(&self) -> f32

Interpret B as an f32 (bit-preserving).

pub fn c_f32(&self) -> f32

Interpret C as an f32 (bit-preserving).

pub fn to_bytes(&self) -> [u8; 16]

Serialize to the 16-byte wire representation (little-endian).

pub fn from_bytes(bytes: &[u8; 16]) -> Self

Deserialize from the 16-byte wire representation (little-endian).

Trait Implementations

impl Clone for Opcode

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Opcode

impl Debug for Opcode

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

Formats the value using the given formatter.

impl Eq for Opcode

impl PartialEq for Opcode

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Opcode

impl TryFrom<Opcode> for Event

type Error = EventError

The type returned in the event of a conversion error.

fn try_from(op: Opcode) -> Result<Self, Self::Error>

Performs the conversion.