Avances y correccion basica, funciona pero con detalles

src/Chip8.h

@@ -16,9 +16,12 @@ class Chip8 {
     double accumulator;
 
     std::span<const bool> keyboard_state;
+    bool run;
+    bool step;
 
     void load_keyboard();
-
+    void execute_instructions();
+    void execute_instruction();
 public:
     Chip8();
 
@@ -29,6 +32,7 @@ public:
     std::vector<uint8_t> read_rom(const std::string& path);
 
     void set_keyboard_state(std::span<const bool> keyboard_state);
+    void on_keydown(SDL_Scancode scancode);
 };