Struct emulatorr::core::cpu::CPU

pub struct CPU { /* private fields */ }

Implementations

impl CPU

Implement CPU’s core functionality

pub fn new(bus: Bus) -> Self

pub fn write(&mut self, addr: u16, data: u8)

Write u8 value to u16 address

pub fn read(&mut self, addr: u16) -> u8

Read u8 value from u16 address

pub fn write_u16(&mut self, addr: u16, data: u16)

Write u16 data from u16 address (little endian)

pub fn read_u16(&mut self, addr: u16) -> u16

Read u16 data from u16 address (little endian)

pub fn push(&mut self, data: u8)

Push u8 value to stack

pub fn push_u16(&mut self, data: u16)

Push u16 value to stack

pub fn pop(&mut self) -> u8

Pop u8 value off stack

pub fn pop_u16(&mut self) -> u16

Pop u16 value off stack (little endian)

pub fn get_flag(&mut self, f: Flags) -> bool

Return whether status register has specific Flag

pub fn set_flag(&mut self, f: Flags, v: bool)

Set Flag according to boolean

pub fn set_zero_negative_flags(&mut self, value: u8)

Set zero (Z) and negative (N) flags according to u8 value

pub fn reset(&mut self)

Reset CPU

pub fn clock(&mut self)

Start clock loop

pub fn advance(&mut self)

Advance CPU by 1 ‘step’ (=/= 1 clock cycle)

impl CPU

Implement addressing modes

pub fn get_address(&mut self, mode: AddressingMode) -> u16

impl CPU

Debugging/testing functions

pub fn load_program(&mut self, program: Vec<u8>)

Write program defined as Vec<u8> to memory

pub fn quick_start(&mut self, program: Vec<u8>)

Write program to memory, reset, and start clock

pub fn get_pc(&self) -> u16

pub fn get_sp(&self) -> u8

pub fn get_sr(&self) -> u8

pub fn get_a(&self) -> u8

pub fn get_x(&self) -> u8

pub fn get_y(&self) -> u8

pub fn get_opcode(&self) -> u8

pub fn get_state(&self) -> Vec<u16>

Return all registers as single Vec<u16>

pub fn get_memory(&self) -> [u8; 65536]

Get entirety of memory

pub fn custom( a: u8, x: u8, y: u8, sp: u8, pc: u16, sr: u8, opcode: u8, bus: Bus ) -> Self

Construct CPU with custom values