#define phi_width 15
#define phi_height 20
static char phi_bits[] = {
   0x00, 0x04, 0x00, 0x04, 0x00, 0x04, 0x00, 0x02, 0x00, 0x02, 0xc0, 0x07,
   0x20, 0x09, 0x30, 0x19, 0x18, 0x19, 0x98, 0x18, 0x98, 0x18, 0x98, 0x0c,
   0x50, 0x04, 0xe0, 0x03, 0x40, 0x00, 0x20, 0x00, 0x20, 0x00, 0x20, 0x00,
   0x00, 0x00, 0x00, 0x00};