Radio Shack TRS-80 Model II Reference Manual page 226

Model II
TRSDOS
RAM Directory Format
The directory is given in "records", one per file. Each record has the
following form:
Byte
number
1
2-16
17
18
19
20-21
22-23
24
25-26
27
28
29-31
32-34
Contents
"."
ti1ename/extd
©D
"F"
or
"V"
LRL
#
of extents
#
of sectors
allocated
#
of sectors used
in storage of data
EOF
byte (position
of first byte of
last record written
#
of records written
User attribute byte
Protection level
Date created
Date last updated
Comments
ASCII
Colon Marks beginning of each directory
record in
RAM.
CCID
represents a carriage return. Trailing
blanks are added as required to fill 15 bytes.
Indicates Fixed- or Variable-length records.
Logical Record Length one byte binary 0-255.
o
implies
LRL
=
256
or
VLR
file.
One byte binary 0-16, Null files
=
O.
Binary 0-65535 in
LSB-MSB
sequence;
null files
=
00.
Binary 0-65535 in
LSB-MSB
sequence;
null files
=
00.
Binary 0-255,0 implies first byte in last sector.
Binary 0-65535 in
LSB-MSB
sequence;
null files
=
00.
Assigned when file was created.
Binary 0-7.
Binary year, month, day.
Binary year, month, day.
When an entire directory is given (C
=
0 on entry), a
"#"
sign instead of the
expected":" marks the end of the directory. When C
=
1-96, record always ends
after 34th byte without a trailing" #' , .
Contents
#
of free granules
#
of extents
Free-Space List Format
Byte
Number
1-2
3-4
262
Comments
Binary
LSB-MSB
sequence.
Binary in
LSB-MSB
sequence.