FDNHEADS
ncyl = trk / FDNHEADS;
nside = trk % FDNHEADS;
printf("fdsetpos: cyl %d head %d towrite %d\n", trk / FDNHEADS,
trk % FDNHEADS, towrite);
trk / FDNHEADS, trk % FDNHEADS);
fdsetpos(sc, sc->cachetrk % FDNHEADS, 0);
fdsetpos(sc, sc->cachetrk + FDNHEADS, 0);
tb[0] = sc->cachetrk / FDNHEADS;
tb[1] = sc->cachetrk % FDNHEADS;
if ((tb[0] * FDNHEADS + tb[1]) != sc->cachetrk ||
sc->hwunit, sc->type->desc, sc->type->ncylinders, FDNHEADS,
fdsetpos(sc, FDNHEADS, 0);
lp->d_ntracks = FDNHEADS;
lp->d_ntracks = FDNHEADS;
lp->d_ntracks != FDNHEADS ||