Full savestating to memory

include/cart.h

@@ -19,6 +19,46 @@ typedef struct {
     u16 global_checksum;
 } rom_header;
 
+typedef struct {
+    char filename[1024];
+    u32 rom_size;
+    u8 *rom_data;
+    rom_header *header;
+
+    //mbc1 data
+    bool ram_enabled;
+    bool ram_banking;
+
+    u8 *rom_bank_x;
+    u8 *rom_bank_x2;
+    u8 banking_mode;
+
+    u8 rom_bank_value;
+    u8 rom_bank_value_2;
+    u8 ram_bank_value;
+
+    u8 *ram_bank;
+    u8 *ram_banks[16];
+
+    //battery
+    bool battery;
+    bool need_save;
+} cart_context;
+
+typedef struct {
+    bool ram_enabled;
+    bool ram_banking;
+    u8 banking_mode;
+    u8 rom_bank_value;
+    u8 rom_bank_value_2;
+    u8 ram_bank_value;
+    u8 ram_banks[16][0x2000];
+    bool need_save;
+} cart_state;
+
+void cart_load_state(const cart_state*);
+void cart_save_state(cart_state*);
+
 bool cart_load(char *cart);
 
 rom_header *get_rom_header();