#define CHAR_HEIGHT 10
#define CHAR_WIDTH 6

#define MAX_COL SCREEN_WIDTH/CHAR_WIDTH
#define MAX_LGN SCREEN_HEIGHT/CHAR_HEIGHT

#define VERT_MODE 1
#define TRNS_MODE 2
#define RETC_MODE 4
#define INVT_MODE 8
#define BOLD_MODE 16
#define UNDL_MODE 32
#define TEMP_MODE 64