Home » Archimedes archive » Micro User » MU 1992-08.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 1992-08.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:
- Archimedes archive » Micro User » MU 1992-08.adf » ArcFSExtra » Documents/Format
- Archimedes archive » Micro User » MU 1992-09.adf » ArcFSExtra » Documents/Format
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