mirror of
https://github.com/FranLMSP/rmg-001.git
synced 2024-09-20 18:20:50 +00:00
139 lines
4.5 KiB
Rust
139 lines
4.5 KiB
Rust
use std::{thread, time};
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use winit_input_helper::WinitInputHelper;
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use winit::event::{VirtualKeyCode};
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use crate::cpu::{CPU, Cycles, Interrupt};
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use crate::ppu::PPU;
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use crate::bus::Bus;
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use crate::timer::Timer;
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use crate::joypad::{Joypad, Button, JOYPAD_ADDRESS};
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pub struct Emulator {
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cpu: CPU,
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ppu: PPU,
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bus: Bus,
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timer: Timer,
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joypad: Joypad,
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}
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impl Emulator {
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pub fn new() -> Self {
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let mut joypad: Joypad = Joypad::new();
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Self {
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cpu: CPU::new(),
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ppu: PPU::new(),
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bus: Bus::new(),
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timer: Timer::new(),
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joypad: Joypad::new(),
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}
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}
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pub fn handle_input(&mut self, input: &WinitInputHelper) {
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let mut change = false;
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if input.key_pressed(VirtualKeyCode::K) {
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change = true;
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self.joypad.press(Button::A);
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}
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if input.key_pressed(VirtualKeyCode::J) {
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change = true;
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self.joypad.press(Button::B);
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}
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if input.key_pressed(VirtualKeyCode::W) {
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change = true;
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self.joypad.press(Button::Up);
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}
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if input.key_pressed(VirtualKeyCode::S) {
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change = true;
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self.joypad.press(Button::Down);
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}
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if input.key_pressed(VirtualKeyCode::A) {
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change = true;
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self.joypad.press(Button::Left);
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}
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if input.key_pressed(VirtualKeyCode::D) {
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change = true;
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self.joypad.press(Button::Right);
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}
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if input.key_pressed(VirtualKeyCode::N) {
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change = true;
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self.joypad.press(Button::Start);
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}
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if input.key_pressed(VirtualKeyCode::B) {
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change = true;
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self.joypad.press(Button::Select);
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}
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if input.key_released(VirtualKeyCode::K) {
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change = true;
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self.joypad.release(Button::A);
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}
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if input.key_released(VirtualKeyCode::J) {
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change = true;
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self.joypad.release(Button::B);
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}
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if input.key_released(VirtualKeyCode::W) {
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change = true;
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self.joypad.release(Button::Up);
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}
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if input.key_released(VirtualKeyCode::S) {
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change = true;
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self.joypad.release(Button::Down);
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}
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if input.key_released(VirtualKeyCode::A) {
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change = true;
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self.joypad.release(Button::Left);
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}
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if input.key_released(VirtualKeyCode::D) {
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change = true;
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self.joypad.release(Button::Right);
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}
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if input.key_released(VirtualKeyCode::N) {
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change = true;
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self.joypad.release(Button::Start);
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}
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if input.key_released(VirtualKeyCode::B) {
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change = true;
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self.joypad.release(Button::Select);
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}
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if change {
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self.bus.force_write(JOYPAD_ADDRESS, self.joypad.get(&self.bus));
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self.bus.set_interrupt_flag(Interrupt::Joypad, true);
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}
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}
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pub fn draw(&mut self, frame: &mut [u8]) {
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let ppu_frame = self.ppu.get_rgba_frame();
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for (i, pixel) in frame.chunks_exact_mut(4).enumerate() {
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pixel.copy_from_slice(&ppu_frame[i]);
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}
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}
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pub fn run(&mut self, cpu_cycles: Cycles) {
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self.cpu.reset_cycles();
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while self.cpu.get_cycles().0 <= cpu_cycles.0 {
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self.cpu.run(&mut self.bus);
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self.ppu.do_cycles(&mut self.bus, self.cpu.get_last_op_cycles());
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self.timer.do_cycles(&mut self.bus, self.cpu.get_last_op_cycles());
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}
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}
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pub fn cpu_loop(&mut self) {
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let mut exit = false;
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while !exit {
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self.cpu.run(&mut self.bus);
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// exit = self.cpu.get_exec_calls_count() >= 1258895; // log 1
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// exit = self.cpu.get_exec_calls_count() >= 1068422; // log 3
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// exit = self.cpu.get_exec_calls_count() >= 1262766; // log 4
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// exit = self.cpu.get_exec_calls_count() >= 1763388; // log 5
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// exit = self.cpu.get_exec_calls_count() >= 1763388; // log 5
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// exit = self.cpu.get_exec_calls_count() >= 243272; // log 6
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// exit = self.cpu.get_exec_calls_count() >= 287416; // log 7
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// exit = self.cpu.get_exec_calls_count() >= 223892; // log 8
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// exit = self.cpu.get_exec_calls_count() >= 4420382; // log 9
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// exit = self.cpu.get_exec_calls_count() >= 6714723; // log 10
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// exit = self.cpu.get_exec_calls_count() >= 7429762; // log 11
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}
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}
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}
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