eumel-ebcdic + sub
open
block i/o
cluster
name conversion
eu disk descriptor.fd
disk descriptor.dos.fd
fat and dir.dos.fd
eu disk descriptor.hd
disk descriptor.dos.hd
fat and dir.dos.hd
fetch
save
disk manager
manager/M.dos.fd
manager/M.dos.hd
table thes.dos
252
253
254
255
shard interface