Struct libnoentiendo::systems::vic::VicVia2PortB

pub struct VicVia2PortB { /* private fields */ }

Port B on the second VIA chip. This is used to set the active columns on the keyboard matrix, and to read the third pin of the joystick.

Implementations

impl VicVia2PortB

pub fn new(joy_pin_3: Rc<Cell<bool>>) -> Self

pub fn get_keyboard_col(&self) -> Rc<Cell<u8>>

Return a reference to the keyboard column’s current value.

Trait Implementations

impl Port for VicVia2PortB

fn read(&mut self) -> u8

Read a byte from the port. This is implementation-defined, and may have side effects.

fn write(&mut self, value: u8)

Write a byte to the port. This is implementation-defined.

fn poll(&mut self, _cycles_since_poll: u64, _total_cycle_count: u64) -> bool

Poll the port for interrupts. A port may trigger an interrupt for any implementation-defined reason.

fn reset(&mut self)

Reset the port to its initial state, analogous to a system reboot.