Sort of working OS allocator, except freeing is impossible

include/emulator.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <filesystem>
+#include <fstream>
 
 #include "cpu.hpp"
 #include "helpers.hpp"
@@ -8,6 +9,10 @@
 #include "SFML/Window.hpp"
 #include "SFML/Graphics.hpp"
 
+enum class ROMType {
+    None, ELF, Cart
+};
+
 class Emulator {
     CPU cpu;
     Memory memory;
@@ -16,6 +21,10 @@ class Emulator {
     sf::RenderWindow window;
     static constexpr u32 width = 400;
     static constexpr u32 height = 240 * 2; // * 2 because 2 screens
+    ROMType romType = ROMType::None;
+
+    // Keep the handle for the ROM here to reload when necessary and to prevent deleting it
+    std::ifstream loadedROM;
 
 public:
     Emulator() : window(sf::VideoMode(width, height), "Alber", sf::Style::Default, sf::ContextSettings(0, 0, 0, 4, 3)),
@@ -31,4 +40,5 @@ public:
     void runFrame();
 
     bool loadELF(std::filesystem::path& path);
+    bool loadELF(std::ifstream& file);
 };