Struct Chip8 

pub struct Chip8 { /* private fields */ }

Struct representing the Chip-8 virtual machine.

Implementations

impl Chip8

pub fn new(seed: u32) -> Self

Creates a new Chip-8 virtual machine. We use a seed to initialize the random number generator for portability across environments.

pub fn frame_width(&self) -> u32

Returns the width of the frame in pixels.

pub fn frame_height(&self) -> u32

Returns the height of the frame in pixels.

pub fn speed(&self) -> u32

Returns the speed of the virtual machine in instructions per second.

pub fn set_speed(&mut self, instructions_per_second: u32)

Sets the speed of the virtual machine in instructions per second.

pub fn load(&mut self, bytes: &[u8])

Loads a program into the virtual machine.

pub fn update(&mut self, time_delta: u32)

This will progress the virtual machine by the given time delta. It takes into account any accumulated time from previous calls that were less than a full cycle. The time delta given is in microseconds.

pub fn step(&mut self)

Executes a single cycle of the virtual machine.

pub fn frame(&self) -> FrameBuffer

Returns a copy of the frame buffer.

pub fn registers(&self) -> Registers

Returns a copy of the registers.

pub fn set_registers(&mut self, registers: Registers)

Sets the registers.

pub fn handle_key_event(&mut self, key: Key, state: KeyState)

Passes a key event to the virtual machine.

pub fn reset(&mut self)

Resets the virtual machine. The seed for the random number generator is not reset. All registers, the stack, timers, ram and the frame buffer are reset. The font is reloaded… However any program that was in memory is cleared, and will need to be loaded again.