taglinefilesource code
newdor568drivers/block/floppy.cregister unsigned char drive, unit, newdor,olddor;
newdor574drivers/block/floppy.cnewdor =  (olddor & mask) | data;
newdor575drivers/block/floppy.cif ( newdor != olddor ){
newdor577drivers/block/floppy.cif(is_selected(olddor, unit) && !is_selected(newdor,unit)){
newdor586drivers/block/floppy.cFDCS->dor = newdor;
newdor587drivers/block/floppy.coutb_p(newdor, FD_DOR);
newdor589drivers/block/floppy.cunit = newdor & 0x3;
newdor590drivers/block/floppy.cif(!is_selected(olddor, unit) && is_selected(newdor,unit)){
newdor595drivers/block/floppy.cif ( newdor & 0xf0 )