HDB              1247 drivers/video/fbdev/atafb.c 	par->HDB = gstart - hdb_off / prescale;
HDB              1249 drivers/video/fbdev/atafb.c 	if (par->HDB < 0)
HDB              1250 drivers/video/fbdev/atafb.c 		par->HDB += par->HHT + 2 + 0x200;
HDB              1255 drivers/video/fbdev/atafb.c 	if ((par->HDB & 0x200) && (par->HDB & ~0x200) - par->HDE <= 5) {