Enum Op 

#[repr(u8)]
pub enum Op {
    Mov(LocalAddress, LocalAddress),
    MovI(LocalAddress, Immediate),
    Add(LocalAddress, LocalAddress, LocalAddress),
    Call(ExtendedImmediate),
    Ret,
    Nop,
}

A VM operation.

Variants

Mov(LocalAddress, LocalAddress)

Self::Mov(a, b) copies the contents at address b to a.

MovI(LocalAddress, Immediate)

Self::MovI(a, i) loads i at address a.

Add(LocalAddress, LocalAddress, LocalAddress)

Self::Add(a, b, c) loads the sum of the contents at addresses b and c at address a.

Call(ExtendedImmediate)

Self::Call(ix) saves the instruction pointer and jumps to the ixth code instruction, pushing a new call frame.

Ret

Self::Ret restores the previous call frame and restores the instruction pointer.

Nop

Self::Nop has no effect.

Implementations

impl Op

pub const MOV_TAG: u8 = 0u8

pub const MOVI_TAG: u8 = 1u8

pub const ADD_TAG: u8 = 2u8

pub const CALL_TAG: u8 = 3u8

pub const RET_TAG: u8 = 4u8

pub const NOP_TAG: u8 = 5u8

impl Op

pub fn encode_packed(&self) -> Word

Encodes this operation as a Word.

pub fn decode_packed(word: Word) -> Option<Self>

Decodes this operation from a Word.

pub fn opcode(&self) -> RawOpCode

Safety

See https://doc.rust-lang.org/std/mem/fn.discriminant.html

Trait Implementations

impl Clone for Op

fn clone(&self) -> Op

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Op