+ #define SEGMENT_EMPTY (0x00)
+ #define SEGMENT_A (0x01)
+ #define SEGMENT_B (0x02)
+ #define SEGMENT_C (0x04)
+ #define SEGMENT_D (0x08)
+ #define SEGMENT_E (0x10)
+ #define SEGMENT_F (0x20)
+ #define SEGMENT_G (0x40)
+ #define SEGMENT_P (0x80)
+ #define SET_SEGMENT(var, segment) (var |= segment)