Home » Personal collection » Acorn ADFS disks » Electron » PRES_E00_backup.ADF » Help/Fastcompac
Help/Fastcompac
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 » Personal collection » Acorn ADFS disks » Electron » PRES_E00_backup.ADF |
| Filename: | Help/Fastcompac |
| Read OK: | ✔ |
| File size: | 03B1 bytes |
| Load address: | 46204556 |
| Exec address: | 63747361 |
Duplicates
There are 5 duplicate copies of this file in the archive:
- AEW website » acornsoft » acornsoft_3_5_discs_Electron_Welcome_Disc_HA-WELC.adf » Help/Fastcompac
- AEW website » acp_pres » acp_pres_3_5_discs_Electron-Adfs-E00_A-E00.adf » Help/Fastcompac
- Personal collection » Acorn ADFS disks » Electron » PRES_E00.ADF » Help/Fastcompac
- Personal collection » Acorn ADFS disks » Electron » PRES_E00_backup.ADF » Help/Fastcompac
- Personal collection » Acorn ADFS disks » Greaseweazled » adfs_E00.adf » Help/Fastcompac
- Personal collection » Acorn ADFS disks » Greaseweazled » dfs_box04_disk01b_adfs_welcome_disk_interleaved.adf » Help/Fastcompac
File contents
** FASTCOMPAC ** After much use, the organisation of files on a disc may become frag- mented: there may be several gaps between the files, but individually the gaps may not be big enough to hold a particular file. Compaction resolves the problem by moving all the files to the beginning of the disc. There is an ADFS command, *COMPACT, to do this. *COMPACT uses screen memory for its workspace, although it is possible to use all of the available memory by adding parameters. See the user guide for details. The *COMPACT command usually requires more than one compact to 'tidy' the disc completely. The FASTCOMPAC utility uses the whole of program + screen memory to do the compaction as quickly as possible without the need for parameters, but can be tailored to using any part of memory you wish. Consult the User Guide for further details.
00000000 20 20 20 20 20 20 20 20 20 2a 2a 20 46 41 53 54 | ** FAST| 00000010 43 4f 4d 50 41 43 20 2a 2a 0d 0d 0d 20 20 20 41 |COMPAC **... A| 00000020 66 74 65 72 20 20 6d 75 63 68 20 20 75 73 65 2c |fter much use,| 00000030 20 20 74 68 65 20 20 6f 72 67 61 6e 69 73 61 74 | the organisat| 00000040 69 6f 6e 0d 6f 66 20 20 66 69 6c 65 73 20 20 6f |ion.of files o| 00000050 6e 20 20 61 20 20 64 69 73 63 20 6d 61 79 20 62 |n a disc may b| 00000060 65 63 6f 6d 65 20 66 72 61 67 2d 0d 6d 65 6e 74 |ecome frag-.ment| 00000070 65 64 3a 20 20 74 68 65 72 65 20 20 6d 61 79 20 |ed: there may | 00000080 20 62 65 20 20 73 65 76 65 72 61 6c 20 20 20 67 | be several g| 00000090 61 70 73 0d 62 65 74 77 65 65 6e 20 74 68 65 20 |aps.between the | 000000a0 66 69 6c 65 73 2c 20 62 75 74 20 69 6e 64 69 76 |files, but indiv| 000000b0 69 64 75 61 6c 6c 79 20 74 68 65 0d 67 61 70 73 |idually the.gaps| 000000c0 20 20 6d 61 79 20 20 6e 6f 74 20 20 62 65 20 62 | may not be b| 000000d0 69 67 20 65 6e 6f 75 67 68 20 74 6f 20 68 6f 6c |ig enough to hol| 000000e0 64 20 61 0d 70 61 72 74 69 63 75 6c 61 72 20 66 |d a.particular f| 000000f0 69 6c 65 2e 20 20 20 43 6f 6d 70 61 63 74 69 6f |ile. Compactio| 00000100 6e 20 20 72 65 73 6f 6c 76 65 73 0d 74 68 65 20 |n resolves.the | 00000110 70 72 6f 62 6c 65 6d 20 62 79 20 20 6d 6f 76 69 |problem by movi| 00000120 6e 67 20 61 6c 6c 20 74 68 65 20 66 69 6c 65 73 |ng all the files| 00000130 20 74 6f 0d 74 68 65 20 62 65 67 69 6e 6e 69 6e | to.the beginnin| 00000140 67 20 6f 66 20 74 68 65 20 64 69 73 63 2e 0d 0d |g of the disc...| 00000150 20 20 54 68 65 72 65 20 20 69 73 20 20 61 6e 20 | There is an | 00000160 41 44 46 53 20 63 6f 6d 6d 61 6e 64 2c 20 2a 43 |ADFS command, *C| 00000170 4f 4d 50 41 43 54 2c 0d 74 6f 20 20 20 64 6f 20 |OMPACT,.to do | 00000180 20 74 68 69 73 2e 20 20 2a 43 4f 4d 50 41 43 54 | this. *COMPACT| 00000190 20 20 20 75 73 65 73 20 20 73 63 72 65 65 6e 0d | uses screen.| 000001a0 6d 65 6d 6f 72 79 20 66 6f 72 20 20 69 74 73 20 |memory for its | 000001b0 20 77 6f 72 6b 73 70 61 63 65 2c 20 61 6c 74 68 | workspace, alth| 000001c0 6f 75 67 68 20 69 74 0d 69 73 20 70 6f 73 73 69 |ough it.is possi| 000001d0 62 6c 65 20 74 6f 20 75 73 65 20 61 6c 6c 20 6f |ble to use all o| 000001e0 66 20 74 68 65 20 61 76 61 69 6c 61 62 6c 65 0d |f the available.| 000001f0 6d 65 6d 6f 72 79 20 20 62 79 20 20 61 64 64 69 |memory by addi| 00000200 6e 67 20 20 70 61 72 61 6d 65 74 65 72 73 2e 20 |ng parameters. | 00000210 53 65 65 20 74 68 65 0d 75 73 65 72 20 20 67 75 |See the.user gu| 00000220 69 64 65 20 66 6f 72 20 64 65 74 61 69 6c 73 2e |ide for details.| 00000230 20 20 54 68 65 20 20 2a 43 4f 4d 50 41 43 54 0d | The *COMPACT.| 00000240 63 6f 6d 6d 61 6e 64 20 75 73 75 61 6c 6c 79 20 |command usually | 00000250 20 72 65 71 75 69 72 65 73 20 6d 6f 72 65 20 74 | requires more t| 00000260 68 61 6e 20 6f 6e 65 0d 63 6f 6d 70 61 63 74 20 |han one.compact | 00000270 74 6f 20 27 74 69 64 79 27 20 74 68 65 20 64 69 |to 'tidy' the di| 00000280 73 63 20 63 6f 6d 70 6c 65 74 65 6c 79 2e 0d 0d |sc completely...| 00000290 20 20 54 68 65 20 20 20 46 41 53 54 43 4f 4d 50 | The FASTCOMP| 000002a0 41 43 20 20 20 75 74 69 6c 69 74 79 20 20 20 75 |AC utility u| 000002b0 73 65 73 20 74 68 65 0d 77 68 6f 6c 65 20 6f 66 |ses the.whole of| 000002c0 20 70 72 6f 67 72 61 6d 20 20 2b 20 73 63 72 65 | program + scre| 000002d0 65 6e 20 6d 65 6d 6f 72 79 20 74 6f 20 64 6f 0d |en memory to do.| 000002e0 74 68 65 20 20 20 20 20 63 6f 6d 70 61 63 74 69 |the compacti| 000002f0 6f 6e 20 20 20 61 73 20 20 20 71 75 69 63 6b 6c |on as quickl| 00000300 79 20 20 20 20 61 73 0d 70 6f 73 73 69 62 6c 65 |y as.possible| 00000310 20 20 20 20 77 69 74 68 6f 75 74 20 20 20 20 74 | without t| 00000320 68 65 20 20 20 6e 65 65 64 20 20 20 66 6f 72 0d |he need for.| 00000330 70 61 72 61 6d 65 74 65 72 73 2c 20 20 62 75 74 |parameters, but| 00000340 20 20 63 61 6e 20 20 62 65 20 20 74 61 69 6c 6f | can be tailo| 00000350 72 65 64 20 20 74 6f 0d 75 73 69 6e 67 20 20 61 |red to.using a| 00000360 6e 79 20 20 70 61 72 74 20 20 20 6f 66 20 20 6d |ny part of m| 00000370 65 6d 6f 72 79 20 79 6f 75 20 77 69 73 68 2e 0d |emory you wish..| 00000380 43 6f 6e 73 75 6c 74 20 20 74 68 65 20 20 55 73 |Consult the Us| 00000390 65 72 20 47 75 69 64 65 20 20 66 6f 72 20 20 20 |er Guide for | 000003a0 66 75 72 74 68 65 72 0d 64 65 74 61 69 6c 73 2e |further.details.| 000003b0 0d |.| 000003b1
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