#ifndef EMUL_H
#define EMUL_H

#include "6502.h"
#include "bus.h"

#include <stdbool.h>

#ifdef WITH_GUI
#include <SDL.h>
#endif

enum {
	ROM_START = 0xf800,
	ROM_END   = 0xffff,
	ROM_SIZE  = 2048,
	
	RAM_START = 0x0000,
	RAM_END   = 0x01ff,
	RAM_SIZE  = 512,
	
	VIA_START = 0x6000,
	VIA_END   = 0x600f,
	
	CPU_FREQUENCY = 1000000,
	
	DISPLAY_FPS = 25
};

typedef struct emul_t {
	cpu_6502_t *cpu;
	bus_t *bus;
	bool gui;
	int width;
	int height;
	bool debug;
	bool paused;
	int speed;
#ifdef WITH_GUI
	SDL_Window *window;
	SDL_Renderer *renderer;
	SDL_Surface *background_image;
	SDL_Texture *background_texture;
#endif
} emul_t;

void emul_init( emul_t *emul, cpu_6502_t *cpu, bus_t *bus, int width, int height );
void emul_start( emul_t *emul );
void emul_run( emul_t *emul, int nof_steps );
void emul_free( emul_t *emul );

#endif