Struct LazyInstructionFetcher 

pub struct LazyInstructionFetcher { /* private fields */ }

Lazy instruction fetcher implementation

Implementations

impl LazyInstructionFetcher

pub unsafe fn new(return_trap_address: u64, pc: u64) -> Self

Create a new instance.

return_trap_address is the address at which the interpreter will stop execution (gracefully).

Safety

The program counter must be valid and aligned, the instructions processed must be valid and end with a jump instruction.

Trait Implementations

impl Clone for LazyInstructionFetcher

fn clone(&self) -> LazyInstructionFetcher

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LazyInstructionFetcher

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

Formats the value using the given formatter.

impl<Memory> InstructionFetcher<ContractInstructionPrototype<Reg<u64>>, Memory> for LazyInstructionFetcher

where Memory: VirtualMemory,

fn fetch_instruction( &mut self, memory: &Memory, ) -> Result<FetchInstructionResult<ContractInstruction>, ExecutionError<u64>>

Fetch a single instruction at a specified address and advance the program counter on successful fetch

impl<Memory> ProgramCounter<u64, Memory> for LazyInstructionFetcher

where Memory: VirtualMemory,

fn get_pc(&self) -> u64

Get the current value of the program counter

fn set_pc( &mut self, memory: &Memory, pc: u64, ) -> Result<ControlFlow<()>, ProgramCounterError<u64>>

Set the current value of the program counter

fn old_pc(&self, instruction_size: u8) -> Address

where Address: From<u8> + Sub<Output = Address>,

Get the previous value of the program counter before executing an instruction.

impl Copy for LazyInstructionFetcher