main.cpp

#include <chrono>
#include <thread>
#include "include/chip.h"
#include "include/device.h"

CHIP8 chip8;
Device device;  // Init our device

using namespace std;

int main(int argc, char* args[]) {
    if (argc < 2 or argc > 3) {
        cerr << "Invalid arguments entered. Format: .chip8 <path_to_rom>. For verbose mode, add \"--v\" flag.\n";
        return 1;
    }
    for (int i=1; i<argc; i++) {
        string debug_flag = "--v";
        if (debug_flag == args[i]) {
            chip8.debugger.setDebug(true);
            continue;
        }
        string filename = args[i];
        int result = chip8.loadProgram(filename);
        if (result == 1) {
            cerr << "Path to ROM file is not valid.\n";
            cerr << "Invalid arguments entered. Format: .chip8 <path_to_rom>. For verbose mode, add \"--v\" flag.\n";
            return 1;
        }
    }

    int quit_flag = false;
    // Set up the render system and the graphics;
    thread keyboard_thread = thread(&Device::runKeyboardMonitor, &device, &quit_flag);
    // Register input callbacks


    // Call initialize()
    // Load the game (loadProgram)
    //chip8.displayGraphics();

    int clock_time_period = 1000/CLOCK_FREQ; // Rounded to the nearest millisecond
    while(chip8.checkValidPC() and not quit_flag) {
        // Check for key-presses
        chip8.setKeys(&device);

        // Run an emulateCycle();
        chip8.emulateCycle();

        // If drawFlag has been set by DRW
        if (chip8.checkDrawFlag()) {
            chip8.displayGraphics(&device);
        }

        chip8.resetKeys();
        this_thread::sleep_for(chrono::milliseconds(clock_time_period));
    }

    keyboard_thread.join();
    return 0;
}