Struct dez80::decoder::InstructionDecoder

pub struct InstructionDecoder { /* fields omitted */ }

Represents an instruction decoder that maintains a state. Its main use case is to decode instructions progressively byte by byte, when a data source cannot implement Read.

Implementations

impl InstructionDecoder

pub fn new() -> Self

pub fn try_decode(&mut self) -> Result<Instruction, DecodingState>

Attempts to decode one instruction from the decoder's source. If there is not enough data to complete the decoding process, an Err<DecodingState> is returned, which describes the state of the decoder prior to running out of data. If an instruction is successfully decoded, an Ok<Instruction> is returned, and its bytes are drained from the source.

pub fn push_byte(&mut self, byte: u8)

Pushes an opcode byte to the decoder source.

pub fn push_slice(&mut self, slice: &[u8])

Pushes a slice of opcode bytes to the decoder source.

pub fn reset(&mut self)

Resets the decoder state, allowing decoding to start from scratch.

Trait Implementations

impl Default for InstructionDecoder

fn default() -> InstructionDecoder

Returns the "default value" for a type.