taglinefilesource code
newdor778drivers/block/floppy.cregister unsigned char drive, unit, newdor,olddor;
newdor784drivers/block/floppy.cnewdor =  (olddor & mask) | data;
newdor785drivers/block/floppy.cif ( newdor != olddor ){
newdor787drivers/block/floppy.cif(is_selected(olddor, unit) && !is_selected(newdor,unit)){
newdor796drivers/block/floppy.cFDCS->dor = newdor;
newdor797drivers/block/floppy.coutb_p(newdor, FD_DOR);
newdor799drivers/block/floppy.cunit = newdor & 0x3;
newdor800drivers/block/floppy.cif(!is_selected(olddor, unit) && is_selected(newdor,unit)){
newdor805drivers/block/floppy.cif ( newdor & 0xf0 )