NUM_BANKS
# define NUM_BANKS(x) ((x) << 6)
#define NUM_BANKS(x) ((x) << 20)
#define NUM_BANKS(x) ((x) << GB_MACROTILE_MODE0__NUM_BANKS__SHIFT)
typedef enum NUM_BANKS {
} NUM_BANKS;
# define NUM_BANKS(x) ((x) << 6)
# define NUM_BANKS(x) ((x) << 20)