BYTE
0,1
2-31
34-63
66-95
98-127
130-159
162-191
194-223
226-255
DIRECTORY FILE FORMAT
Track 18, Sectors 1-19
DEFINITION
Track and sector
of
next directory block.
File entry
1*
File entry
2*
File entry
3*
File entry
4*
File entry
5*
File entry
6*
File entry 7*
File entry
8*
*STRUCTURE OF EACH INDIVIDUAL DIRECTORY ENTRY
BYTE
CONTENTS DEFINITION
0
128
File type
OR'ed
with $80
to
indicate properly closed file.
+
(ifOR'ed
with
$CO
instead,
file
is
locked.)
type TYPES: 0
= DELeted
1
= SEQuential
2
= PROGram
3
= USER
4
= RELative
1-2
Track and sector
of
first data block.
3-18 File name padded with shifted spaces.
19-20 Relative file only: track and sector
of
first side
sector block.
21
Relative file only: record length.
22-25
Unused.
26-27 Track and sector
of
replacement
file
during
an
(liSA VE or (a/OPEN.
28-29 Number
of
blocks
in
file:
stored
as
a two-byte integer,
in
low-byte. high-byte order.
III
To Next Page
Loading...
