pm_RootDirEnts
pmp->pm_RootDirEnts = getushort(b50->bpbRootDirEnts);
if (pmp->pm_RootDirEnts == 0) {
pmp->pm_rootdirsize = howmany(pmp->pm_RootDirEnts *
sbp->f_files = pmp->pm_RootDirEnts; /* XXX */
sbp->f_files = pmp->pm_RootDirEnts; /* XXX */
pmp->pm_RootDirEnts = getushort(b50->bpbRootDirEnts);
pmp->pm_FATs, pmp->pm_RootDirEnts, pmp->pm_Sectors,
if (pmp->pm_RootDirEnts == 0) {
pmp->pm_rootdirsize = (pmp->pm_RootDirEnts * sizeof(struct direntry)