#define prev_width 9
#define prev_height 9
static unsigned char prev_bits[] = {
   0x10, 0x00, 0x18, 0x01, 0x9c, 0x01, 0xde, 0x01, 0xff, 0x01, 0xde, 0x01,
   0x9c, 0x01, 0x18, 0x01, 0x10, 0x00 };