taglinefilesource code
newdor572drivers/block/floppy.cregister unsigned char drive, unit, newdor,olddor;
newdor578drivers/block/floppy.cnewdor =  (olddor & mask) | data;
newdor579drivers/block/floppy.cif ( newdor != olddor ){
newdor581drivers/block/floppy.cif(is_selected(olddor, unit) && !is_selected(newdor,unit)){
newdor590drivers/block/floppy.cFDCS->dor = newdor;
newdor591drivers/block/floppy.coutb_p(newdor, FD_DOR);
newdor593drivers/block/floppy.cunit = newdor & 0x3;
newdor594drivers/block/floppy.cif(!is_selected(olddor, unit) && is_selected(newdor,unit)){
newdor599drivers/block/floppy.cif ( newdor & 0xf0 )