Home » Archimedes archive » Micro User » MU 1992-09.adf » ArcFSExtra » Documents/Format

Documents/Format

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Archimedes archive » Micro User » MU 1992-09.adf » ArcFSExtra
Filename: Documents/Format
Read OK:
File size: 0CD2 bytes
Load address: 0000
Exec address: 0000
Duplicates

There is 1 duplicate copy of this file in the archive:

File contents
ArcFS 0.50/2.00 Documentation
-----------------------------

ArcFS archive format (version 0, for ArcFS min versions 0.40 and 1.00)
----------------------------------------------------------------------

Offset (bytes)  Contains.....                                     Length

  0             'Archive<00>' - ArcFS archive signiture           8 bytes
  8             Length of header info (in bytes, multiple of 36)  4 bytes
 12             Offset in archive at which data starts (in bytes) 4 bytes
 16             Min read only version required * 100, i.e. 40 dec 4 bytes
 20             Min read / write version * 100, i.e. 100 dec      4 bytes
 24             Format version, i.e. 0                            4 bytes
 28             Reserved for future use                          68 bytes
 96             First header (see below)                         36 bytes
132             Second header (see below)                        36 bytes
                etc.

The last header starts at 60+length of headers and ends at 96+length of
headers. The format of each header is:

  0             object info byte                                  1 byte
  1             object name                                      11 bytes
 12             full length (&FFFFFFFF for a dir.)*               4 bytes
 16             load address (or &FFFFFFdd for dir.)*             4 bytes
 20             exec address (or &dddddddd for dir.)*             4 bytes
 24             attributes                                        4 bytes
 28             compressed length (&FFFFFFFF for dir.)*           4 bytes
 32             object info word                                  4 bytes

* - Archives converted using ArcConv, will have the same full len., comp.
len., load address and execute address as they had in the Spark archive.

The object info byte shows the compression method used:

  &82 for a stored file
  &83 for a packed file
  &88 for a crunched file
  &FF for a compressed file

In addition, 0 is used to show this header is an end of directory marker
(rest of header has no significance) and 1 is used to show the header is of
an object which has been deleted since the archive was last compacted.

The attributes word contains a 16 bit CRC for the file in the top two bytes.
The next byte contains the no. of bits compression for crunch and compress
format files and the least significant bytes contains the standard
information on file access.

The top bit of the object information word is:

0 for a file
1 for a directory

The top bit of the object information word MUST be used to test whether an
object is a directory or file

In the case of a file, the least significant 31 bits show the offset from
the start of data at which the file data can be found.

In the case of a directory, the least significant 31 bits show the offset
from the start of headers (96) at which the next object in this directory
can be found, the following object being the first in the sub-directory.

Directories can be date-stamped, the number of centiseconds since the 1st
January 1900 when the directory was created are given by &dddddddddd
contained in the directory's load and execution addresses as shown above.

File load and execution address may contain a filetype and datestamp as
normal.
00000000  41 72 63 46 53 20 30 2e  35 30 2f 32 2e 30 30 20  |ArcFS 0.50/2.00 |
00000010  44 6f 63 75 6d 65 6e 74  61 74 69 6f 6e 0a 2d 2d  |Documentation.--|
00000020  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
00000030  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 0a 0a 41 72 63  |-----------..Arc|
00000040  46 53 20 61 72 63 68 69  76 65 20 66 6f 72 6d 61  |FS archive forma|
00000050  74 20 28 76 65 72 73 69  6f 6e 20 30 2c 20 66 6f  |t (version 0, fo|
00000060  72 20 41 72 63 46 53 20  6d 69 6e 20 76 65 72 73  |r ArcFS min vers|
00000070  69 6f 6e 73 20 30 2e 34  30 20 61 6e 64 20 31 2e  |ions 0.40 and 1.|
00000080  30 30 29 0a 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |00).------------|
00000090  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
000000c0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 0a 0a 4f 66 66 73  |----------..Offs|
000000d0  65 74 20 28 62 79 74 65  73 29 20 20 43 6f 6e 74  |et (bytes)  Cont|
000000e0  61 69 6e 73 2e 2e 2e 2e  2e 20 20 20 20 20 20 20  |ains.....       |
000000f0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000100  20 20 20 20 20 20 20 20  20 20 20 20 20 20 4c 65  |              Le|
00000110  6e 67 74 68 0a 0a 20 20  30 20 20 20 20 20 20 20  |ngth..  0       |
00000120  20 20 20 20 20 20 27 41  72 63 68 69 76 65 3c 30  |      'Archive<0|
00000130  30 3e 27 20 2d 20 41 72  63 46 53 20 61 72 63 68  |0>' - ArcFS arch|
00000140  69 76 65 20 73 69 67 6e  69 74 75 72 65 20 20 20  |ive signiture   |
00000150  20 20 20 20 20 20 20 20  38 20 62 79 74 65 73 0a  |        8 bytes.|
00000160  20 20 38 20 20 20 20 20  20 20 20 20 20 20 20 20  |  8             |
00000170  4c 65 6e 67 74 68 20 6f  66 20 68 65 61 64 65 72  |Length of header|
00000180  20 69 6e 66 6f 20 28 69  6e 20 62 79 74 65 73 2c  | info (in bytes,|
00000190  20 6d 75 6c 74 69 70 6c  65 20 6f 66 20 33 36 29  | multiple of 36)|
000001a0  20 20 34 20 62 79 74 65  73 0a 20 31 32 20 20 20  |  4 bytes. 12   |
000001b0  20 20 20 20 20 20 20 20  20 20 4f 66 66 73 65 74  |          Offset|
000001c0  20 69 6e 20 61 72 63 68  69 76 65 20 61 74 20 77  | in archive at w|
000001d0  68 69 63 68 20 64 61 74  61 20 73 74 61 72 74 73  |hich data starts|
000001e0  20 28 69 6e 20 62 79 74  65 73 29 20 34 20 62 79  | (in bytes) 4 by|
000001f0  74 65 73 0a 20 31 36 20  20 20 20 20 20 20 20 20  |tes. 16         |
00000200  20 20 20 20 4d 69 6e 20  72 65 61 64 20 6f 6e 6c  |    Min read onl|
00000210  79 20 76 65 72 73 69 6f  6e 20 72 65 71 75 69 72  |y version requir|
00000220  65 64 20 2a 20 31 30 30  2c 20 69 2e 65 2e 20 34  |ed * 100, i.e. 4|
00000230  30 20 64 65 63 20 34 20  62 79 74 65 73 0a 20 32  |0 dec 4 bytes. 2|
00000240  30 20 20 20 20 20 20 20  20 20 20 20 20 20 4d 69  |0             Mi|
00000250  6e 20 72 65 61 64 20 2f  20 77 72 69 74 65 20 76  |n read / write v|
00000260  65 72 73 69 6f 6e 20 2a  20 31 30 30 2c 20 69 2e  |ersion * 100, i.|
00000270  65 2e 20 31 30 30 20 64  65 63 20 20 20 20 20 20  |e. 100 dec      |
00000280  34 20 62 79 74 65 73 0a  20 32 34 20 20 20 20 20  |4 bytes. 24     |
00000290  20 20 20 20 20 20 20 20  46 6f 72 6d 61 74 20 76  |        Format v|
000002a0  65 72 73 69 6f 6e 2c 20  69 2e 65 2e 20 30 20 20  |ersion, i.e. 0  |
000002b0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000002c0  20 20 20 20 20 20 20 20  20 20 34 20 62 79 74 65  |          4 byte|
000002d0  73 0a 20 32 38 20 20 20  20 20 20 20 20 20 20 20  |s. 28           |
000002e0  20 20 52 65 73 65 72 76  65 64 20 66 6f 72 20 66  |  Reserved for f|
000002f0  75 74 75 72 65 20 75 73  65 20 20 20 20 20 20 20  |uture use       |
00000300  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000310  20 20 20 36 38 20 62 79  74 65 73 0a 20 39 36 20  |   68 bytes. 96 |
00000320  20 20 20 20 20 20 20 20  20 20 20 20 46 69 72 73  |            Firs|
00000330  74 20 68 65 61 64 65 72  20 28 73 65 65 20 62 65  |t header (see be|
00000340  6c 6f 77 29 20 20 20 20  20 20 20 20 20 20 20 20  |low)            |
00000350  20 20 20 20 20 20 20 20  20 20 20 20 20 33 36 20  |             36 |
00000360  62 79 74 65 73 0a 31 33  32 20 20 20 20 20 20 20  |bytes.132       |
00000370  20 20 20 20 20 20 53 65  63 6f 6e 64 20 68 65 61  |      Second hea|
00000380  64 65 72 20 28 73 65 65  20 62 65 6c 6f 77 29 20  |der (see below) |
00000390  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000003a0  20 20 20 20 20 20 20 33  36 20 62 79 74 65 73 0a  |       36 bytes.|
000003b0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000003c0  65 74 63 2e 0a 0a 54 68  65 20 6c 61 73 74 20 68  |etc...The last h|
000003d0  65 61 64 65 72 20 73 74  61 72 74 73 20 61 74 20  |eader starts at |
000003e0  36 30 2b 6c 65 6e 67 74  68 20 6f 66 20 68 65 61  |60+length of hea|
000003f0  64 65 72 73 20 61 6e 64  20 65 6e 64 73 20 61 74  |ders and ends at|
00000400  20 39 36 2b 6c 65 6e 67  74 68 20 6f 66 0a 68 65  | 96+length of.he|
00000410  61 64 65 72 73 2e 20 54  68 65 20 66 6f 72 6d 61  |aders. The forma|
00000420  74 20 6f 66 20 65 61 63  68 20 68 65 61 64 65 72  |t of each header|
00000430  20 69 73 3a 0a 0a 20 20  30 20 20 20 20 20 20 20  | is:..  0       |
00000440  20 20 20 20 20 20 6f 62  6a 65 63 74 20 69 6e 66  |      object inf|
00000450  6f 20 62 79 74 65 20 20  20 20 20 20 20 20 20 20  |o byte          |
00000460  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000470  20 20 20 20 20 20 20 20  31 20 62 79 74 65 0a 20  |        1 byte. |
00000480  20 31 20 20 20 20 20 20  20 20 20 20 20 20 20 6f  | 1             o|
00000490  62 6a 65 63 74 20 6e 61  6d 65 20 20 20 20 20 20  |bject name      |
000004a0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
000004c0  31 31 20 62 79 74 65 73  0a 20 31 32 20 20 20 20  |11 bytes. 12    |
000004d0  20 20 20 20 20 20 20 20  20 66 75 6c 6c 20 6c 65  |         full le|
000004e0  6e 67 74 68 20 28 26 46  46 46 46 46 46 46 46 20  |ngth (&FFFFFFFF |
000004f0  66 6f 72 20 61 20 64 69  72 2e 29 2a 20 20 20 20  |for a dir.)*    |
00000500  20 20 20 20 20 20 20 20  20 20 20 34 20 62 79 74  |           4 byt|
00000510  65 73 0a 20 31 36 20 20  20 20 20 20 20 20 20 20  |es. 16          |
00000520  20 20 20 6c 6f 61 64 20  61 64 64 72 65 73 73 20  |   load address |
00000530  28 6f 72 20 26 46 46 46  46 46 46 64 64 20 66 6f  |(or &FFFFFFdd fo|
00000540  72 20 64 69 72 2e 29 2a  20 20 20 20 20 20 20 20  |r dir.)*        |
00000550  20 20 20 20 20 34 20 62  79 74 65 73 0a 20 32 30  |     4 bytes. 20|
00000560  20 20 20 20 20 20 20 20  20 20 20 20 20 65 78 65  |             exe|
00000570  63 20 61 64 64 72 65 73  73 20 28 6f 72 20 26 64  |c address (or &d|
00000580  64 64 64 64 64 64 64 20  66 6f 72 20 64 69 72 2e  |ddddddd for dir.|
00000590  29 2a 20 20 20 20 20 20  20 20 20 20 20 20 20 34  |)*             4|
000005a0  20 62 79 74 65 73 0a 20  32 34 20 20 20 20 20 20  | bytes. 24      |
000005b0  20 20 20 20 20 20 20 61  74 74 72 69 62 75 74 65  |       attribute|
000005c0  73 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |s               |
000005d0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000005e0  20 20 20 20 20 20 20 20  20 34 20 62 79 74 65 73  |         4 bytes|
000005f0  0a 20 32 38 20 20 20 20  20 20 20 20 20 20 20 20  |. 28            |
00000600  20 63 6f 6d 70 72 65 73  73 65 64 20 6c 65 6e 67  | compressed leng|
00000610  74 68 20 28 26 46 46 46  46 46 46 46 46 20 66 6f  |th (&FFFFFFFF fo|
00000620  72 20 64 69 72 2e 29 2a  20 20 20 20 20 20 20 20  |r dir.)*        |
00000630  20 20 20 34 20 62 79 74  65 73 0a 20 33 32 20 20  |   4 bytes. 32  |
00000640  20 20 20 20 20 20 20 20  20 20 20 6f 62 6a 65 63  |           objec|
00000650  74 20 69 6e 66 6f 20 77  6f 72 64 20 20 20 20 20  |t info word     |
00000660  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000670  20 20 20 20 20 20 20 20  20 20 20 20 20 34 20 62  |             4 b|
00000680  79 74 65 73 0a 0a 2a 20  2d 20 41 72 63 68 69 76  |ytes..* - Archiv|
00000690  65 73 20 63 6f 6e 76 65  72 74 65 64 20 75 73 69  |es converted usi|
000006a0  6e 67 20 41 72 63 43 6f  6e 76 2c 20 77 69 6c 6c  |ng ArcConv, will|
000006b0  20 68 61 76 65 20 74 68  65 20 73 61 6d 65 20 66  | have the same f|
000006c0  75 6c 6c 20 6c 65 6e 2e  2c 20 63 6f 6d 70 2e 0a  |ull len., comp..|
000006d0  6c 65 6e 2e 2c 20 6c 6f  61 64 20 61 64 64 72 65  |len., load addre|
000006e0  73 73 20 61 6e 64 20 65  78 65 63 75 74 65 20 61  |ss and execute a|
000006f0  64 64 72 65 73 73 20 61  73 20 74 68 65 79 20 68  |ddress as they h|
00000700  61 64 20 69 6e 20 74 68  65 20 53 70 61 72 6b 20  |ad in the Spark |
00000710  61 72 63 68 69 76 65 2e  0a 0a 54 68 65 20 6f 62  |archive...The ob|
00000720  6a 65 63 74 20 69 6e 66  6f 20 62 79 74 65 20 73  |ject info byte s|
00000730  68 6f 77 73 20 74 68 65  20 63 6f 6d 70 72 65 73  |hows the compres|
00000740  73 69 6f 6e 20 6d 65 74  68 6f 64 20 75 73 65 64  |sion method used|
00000750  3a 0a 0a 20 20 26 38 32  20 66 6f 72 20 61 20 73  |:..  &82 for a s|
00000760  74 6f 72 65 64 20 66 69  6c 65 0a 20 20 26 38 33  |tored file.  &83|
00000770  20 66 6f 72 20 61 20 70  61 63 6b 65 64 20 66 69  | for a packed fi|
00000780  6c 65 0a 20 20 26 38 38  20 66 6f 72 20 61 20 63  |le.  &88 for a c|
00000790  72 75 6e 63 68 65 64 20  66 69 6c 65 0a 20 20 26  |runched file.  &|
000007a0  46 46 20 66 6f 72 20 61  20 63 6f 6d 70 72 65 73  |FF for a compres|
000007b0  73 65 64 20 66 69 6c 65  0a 0a 49 6e 20 61 64 64  |sed file..In add|
000007c0  69 74 69 6f 6e 2c 20 30  20 69 73 20 75 73 65 64  |ition, 0 is used|
000007d0  20 74 6f 20 73 68 6f 77  20 74 68 69 73 20 68 65  | to show this he|
000007e0  61 64 65 72 20 69 73 20  61 6e 20 65 6e 64 20 6f  |ader is an end o|
000007f0  66 20 64 69 72 65 63 74  6f 72 79 20 6d 61 72 6b  |f directory mark|
00000800  65 72 0a 28 72 65 73 74  20 6f 66 20 68 65 61 64  |er.(rest of head|
00000810  65 72 20 68 61 73 20 6e  6f 20 73 69 67 6e 69 66  |er has no signif|
00000820  69 63 61 6e 63 65 29 20  61 6e 64 20 31 20 69 73  |icance) and 1 is|
00000830  20 75 73 65 64 20 74 6f  20 73 68 6f 77 20 74 68  | used to show th|
00000840  65 20 68 65 61 64 65 72  20 69 73 20 6f 66 0a 61  |e header is of.a|
00000850  6e 20 6f 62 6a 65 63 74  20 77 68 69 63 68 20 68  |n object which h|
00000860  61 73 20 62 65 65 6e 20  64 65 6c 65 74 65 64 20  |as been deleted |
00000870  73 69 6e 63 65 20 74 68  65 20 61 72 63 68 69 76  |since the archiv|
00000880  65 20 77 61 73 20 6c 61  73 74 20 63 6f 6d 70 61  |e was last compa|
00000890  63 74 65 64 2e 0a 0a 54  68 65 20 61 74 74 72 69  |cted...The attri|
000008a0  62 75 74 65 73 20 77 6f  72 64 20 63 6f 6e 74 61  |butes word conta|
000008b0  69 6e 73 20 61 20 31 36  20 62 69 74 20 43 52 43  |ins a 16 bit CRC|
000008c0  20 66 6f 72 20 74 68 65  20 66 69 6c 65 20 69 6e  | for the file in|
000008d0  20 74 68 65 20 74 6f 70  20 74 77 6f 20 62 79 74  | the top two byt|
000008e0  65 73 2e 0a 54 68 65 20  6e 65 78 74 20 62 79 74  |es..The next byt|
000008f0  65 20 63 6f 6e 74 61 69  6e 73 20 74 68 65 20 6e  |e contains the n|
00000900  6f 2e 20 6f 66 20 62 69  74 73 20 63 6f 6d 70 72  |o. of bits compr|
00000910  65 73 73 69 6f 6e 20 66  6f 72 20 63 72 75 6e 63  |ession for crunc|
00000920  68 20 61 6e 64 20 63 6f  6d 70 72 65 73 73 0a 66  |h and compress.f|
00000930  6f 72 6d 61 74 20 66 69  6c 65 73 20 61 6e 64 20  |ormat files and |
00000940  74 68 65 20 6c 65 61 73  74 20 73 69 67 6e 69 66  |the least signif|
00000950  69 63 61 6e 74 20 62 79  74 65 73 20 63 6f 6e 74  |icant bytes cont|
00000960  61 69 6e 73 20 74 68 65  20 73 74 61 6e 64 61 72  |ains the standar|
00000970  64 0a 69 6e 66 6f 72 6d  61 74 69 6f 6e 20 6f 6e  |d.information on|
00000980  20 66 69 6c 65 20 61 63  63 65 73 73 2e 0a 0a 54  | file access...T|
00000990  68 65 20 74 6f 70 20 62  69 74 20 6f 66 20 74 68  |he top bit of th|
000009a0  65 20 6f 62 6a 65 63 74  20 69 6e 66 6f 72 6d 61  |e object informa|
000009b0  74 69 6f 6e 20 77 6f 72  64 20 69 73 3a 0a 0a 30  |tion word is:..0|
000009c0  20 66 6f 72 20 61 20 66  69 6c 65 0a 31 20 66 6f  | for a file.1 fo|
000009d0  72 20 61 20 64 69 72 65  63 74 6f 72 79 0a 0a 54  |r a directory..T|
000009e0  68 65 20 74 6f 70 20 62  69 74 20 6f 66 20 74 68  |he top bit of th|
000009f0  65 20 6f 62 6a 65 63 74  20 69 6e 66 6f 72 6d 61  |e object informa|
00000a00  74 69 6f 6e 20 77 6f 72  64 20 4d 55 53 54 20 62  |tion word MUST b|
00000a10  65 20 75 73 65 64 20 74  6f 20 74 65 73 74 20 77  |e used to test w|
00000a20  68 65 74 68 65 72 20 61  6e 0a 6f 62 6a 65 63 74  |hether an.object|
00000a30  20 69 73 20 61 20 64 69  72 65 63 74 6f 72 79 20  | is a directory |
00000a40  6f 72 20 66 69 6c 65 0a  0a 49 6e 20 74 68 65 20  |or file..In the |
00000a50  63 61 73 65 20 6f 66 20  61 20 66 69 6c 65 2c 20  |case of a file, |
00000a60  74 68 65 20 6c 65 61 73  74 20 73 69 67 6e 69 66  |the least signif|
00000a70  69 63 61 6e 74 20 33 31  20 62 69 74 73 20 73 68  |icant 31 bits sh|
00000a80  6f 77 20 74 68 65 20 6f  66 66 73 65 74 20 66 72  |ow the offset fr|
00000a90  6f 6d 0a 74 68 65 20 73  74 61 72 74 20 6f 66 20  |om.the start of |
00000aa0  64 61 74 61 20 61 74 20  77 68 69 63 68 20 74 68  |data at which th|
00000ab0  65 20 66 69 6c 65 20 64  61 74 61 20 63 61 6e 20  |e file data can |
00000ac0  62 65 20 66 6f 75 6e 64  2e 0a 0a 49 6e 20 74 68  |be found...In th|
00000ad0  65 20 63 61 73 65 20 6f  66 20 61 20 64 69 72 65  |e case of a dire|
00000ae0  63 74 6f 72 79 2c 20 74  68 65 20 6c 65 61 73 74  |ctory, the least|
00000af0  20 73 69 67 6e 69 66 69  63 61 6e 74 20 33 31 20  | significant 31 |
00000b00  62 69 74 73 20 73 68 6f  77 20 74 68 65 20 6f 66  |bits show the of|
00000b10  66 73 65 74 0a 66 72 6f  6d 20 74 68 65 20 73 74  |fset.from the st|
00000b20  61 72 74 20 6f 66 20 68  65 61 64 65 72 73 20 28  |art of headers (|
00000b30  39 36 29 20 61 74 20 77  68 69 63 68 20 74 68 65  |96) at which the|
00000b40  20 6e 65 78 74 20 6f 62  6a 65 63 74 20 69 6e 20  | next object in |
00000b50  74 68 69 73 20 64 69 72  65 63 74 6f 72 79 0a 63  |this directory.c|
00000b60  61 6e 20 62 65 20 66 6f  75 6e 64 2c 20 74 68 65  |an be found, the|
00000b70  20 66 6f 6c 6c 6f 77 69  6e 67 20 6f 62 6a 65 63  | following objec|
00000b80  74 20 62 65 69 6e 67 20  74 68 65 20 66 69 72 73  |t being the firs|
00000b90  74 20 69 6e 20 74 68 65  20 73 75 62 2d 64 69 72  |t in the sub-dir|
00000ba0  65 63 74 6f 72 79 2e 0a  0a 44 69 72 65 63 74 6f  |ectory...Directo|
00000bb0  72 69 65 73 20 63 61 6e  20 62 65 20 64 61 74 65  |ries can be date|
00000bc0  2d 73 74 61 6d 70 65 64  2c 20 74 68 65 20 6e 75  |-stamped, the nu|
00000bd0  6d 62 65 72 20 6f 66 20  63 65 6e 74 69 73 65 63  |mber of centisec|
00000be0  6f 6e 64 73 20 73 69 6e  63 65 20 74 68 65 20 31  |onds since the 1|
00000bf0  73 74 0a 4a 61 6e 75 61  72 79 20 31 39 30 30 20  |st.January 1900 |
00000c00  77 68 65 6e 20 74 68 65  20 64 69 72 65 63 74 6f  |when the directo|
00000c10  72 79 20 77 61 73 20 63  72 65 61 74 65 64 20 61  |ry was created a|
00000c20  72 65 20 67 69 76 65 6e  20 62 79 20 26 64 64 64  |re given by &ddd|
00000c30  64 64 64 64 64 64 64 0a  63 6f 6e 74 61 69 6e 65  |ddddddd.containe|
00000c40  64 20 69 6e 20 74 68 65  20 64 69 72 65 63 74 6f  |d in the directo|
00000c50  72 79 27 73 20 6c 6f 61  64 20 61 6e 64 20 65 78  |ry's load and ex|
00000c60  65 63 75 74 69 6f 6e 20  61 64 64 72 65 73 73 65  |ecution addresse|
00000c70  73 20 61 73 20 73 68 6f  77 6e 20 61 62 6f 76 65  |s as shown above|
00000c80  2e 0a 0a 46 69 6c 65 20  6c 6f 61 64 20 61 6e 64  |...File load and|
00000c90  20 65 78 65 63 75 74 69  6f 6e 20 61 64 64 72 65  | execution addre|
00000ca0  73 73 20 6d 61 79 20 63  6f 6e 74 61 69 6e 20 61  |ss may contain a|
00000cb0  20 66 69 6c 65 74 79 70  65 20 61 6e 64 20 64 61  | filetype and da|
00000cc0  74 65 73 74 61 6d 70 20  61 73 0a 6e 6f 72 6d 61  |testamp as.norma|
00000cd0  6c 2e                                             |l.|
00000cd2