Struct DataStore 

pub struct DataStore { /* private fields */ }

A unified data store that maps (area, db_number, offset) -> u8.

Supports:

• Arbitrary area codes (PI / PA / MK / DB / TI / CT / …)
• Per-area registration (register_area / unregister_area)
• CPU run-state (cpu_state / set_cpu_state)
• Read / write event callbacks

Implementations

impl DataStore

pub fn new() -> Self

Create a new empty store.

pub fn register_area(&self, area_code: u8, size: usize)

Register a memory area. size is a hint; reads beyond written bytes return zeros.

pub fn unregister_area(&self, area_code: u8)

Unregister a previously registered area.

pub fn is_area_registered(&self, area_code: u8) -> bool

Check whether an area is registered.

pub fn registered_areas(&self) -> Vec<u8>

Return the set of registered area codes.

pub fn cpu_state(&self) -> CpuState

Current simulated CPU state.

pub fn set_cpu_state(&self, state: CpuState)

Set the simulated CPU state and fire event_callbacks.

pub fn read_bytes(&self, db: u16, start: u32, count: u32) -> Vec<u8>

Read a contiguous range of bytes.

pub fn read_area(&self, area: u8, db: u16, start: u32, count: u32) -> Vec<u8>

Read from an arbitrary area.

pub fn write_area(&self, area: u8, db: u16, start: u32, data: &[u8])

Write to an arbitrary area.

pub fn write_bytes(&self, db: u16, start: u32, data: &[u8])

Write to DB area (convenience, retained for backward compat).

pub fn on_read<F>(&self, cb: F)

where F: Fn(&EventInfo) + Send + 'static,

Register a callback fired on every data read.

pub fn on_write<F>(&self, cb: F)

where F: Fn(&EventInfo) + Send + 'static,

Register a callback fired on every data write.

pub fn on_event<F>(&self, cb: F)

where F: Fn(&str) + Send + 'static,

Register a callback fired on CPU state changes and other server events.

Trait Implementations

impl Clone for DataStore

fn clone(&self) -> DataStore

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for DataStore

fn default() -> Self

Returns the “default value” for a type.