f_bpb
#define fat_bpc(i) (pi[(i)]->f_bpb.bs_spc * SECSIZ)
if (pcfsp->f_bpb.bs_spc == 0) {
(pcfsp->f_bpb.bs_num_fats * ltohs(pcfsp->f_bpb.bs_spf)) +
ltohs(pcfsp->f_bpb.bs_resv_sectors);
ltohs(pcfsp->f_bpb.bs_num_root_entries) *
ncluster = (((ulong_t)ltohs(pcfsp->f_bpb.bs_siv) ?
(ulong_t)ltohs(pcfsp->f_bpb.bs_siv) :
(ulong_t)ltohi(pcfsp->f_bpb.bs_siv)) -
pcfsp->f_filesec) / (ulong_t)pcfsp->f_bpb.bs_spc;
ltohs(pcfsp->f_bpb.bs_resv_sectors) + pcfsp->f_adjust;
spc = pcfsp->f_bpb.bs_spc;
spc = pcfsp->f_bpb.bs_spc;
while (off >= pcfsp->f_bpb.bs_spc * SECSIZ) {
off -= pcfsp->f_bpb.bs_spc * SECSIZ;
for (i = ((off / SECSIZ) % pcfsp->f_bpb.bs_spc); i < spc; i++) {
((blk - 2) * pcfsp->f_bpb.bs_spc) +
sectn = (fat_index / SECSIZ) + ltohs(pcfsp->f_bpb.bs_resv_sectors)
int spc = pcfsp->f_bpb.bs_spc;