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doc:cbm:disk:image:d64 [2020/06/01 01:23] – ↷ Links adapted because of a move operation admindoc:cbm:disk:image:d64 [2020/10/26 17:39] (current) – ↷ Links adapted because of a move operation eek
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 ===== Introduction ===== ===== Introduction =====
  
-Note: This document will try to explain the layout of the 1541  disks,  as well as some of the files they contain. However, I do not explain  GEOS  or REL files here. See the file [[..:..:geos|GEOS.TXT]] or [[..:..:rel|REL.TXT]] for  more  information on those file types or disk structure.+Note: This document will try to explain the layout of the 1541  disks,  as well as some of the files they contain. However, I do not explain  GEOS  or REL files here. See the file [[..:geos|GEOS.TXT]] or [[..:rel|REL.TXT]] for  more  information on those file types or disk structure.
  
 Special thanks to Wolfgang Moser for his work on identifying the differences between the various 'Speeder' DOS's that exist. This information is included in a table later in this document. Special thanks to Wolfgang Moser for his work on identifying the differences between the various 'Speeder' DOS's that exist. This information is included in a table later in this document.
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 ''17/8'', ''17/18'', etc. ''17/8'', ''17/18'', etc.
  
-Note: No GEOS entries are listed in the above description. See the [[..:..:geos|GEOS.TXT]] file for GEOS info.+Note: No GEOS entries are listed in the above description. See the [[..:geos|GEOS.TXT]] file for GEOS info.
  
 ===== Non-Standard & Long Directories ===== ===== Non-Standard & Long Directories =====
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   - Standard 35 track layout but with 683 error bytes added on to the  end of the file. Each byte of the  error  info  corresponds  to a single sector stored in the D64, indicating if the sector on the original disk contained an error. The first byte is for track 1/0, and the last byte is for track 35/16.   - Standard 35 track layout but with 683 error bytes added on to the  end of the file. Each byte of the  error  info  corresponds  to a single sector stored in the D64, indicating if the sector on the original disk contained an error. The first byte is for track 1/0, and the last byte is for track 35/16.
   - A 40 track layout, following the same layout as a 35 track  disk, but with 5 extra tracks. These contain 17 sectors each, like tracks 31-35. Some of the PC utilities do allow you to create and  work  with  these files. This can also have error bytes attached like variant #1.   - A 40 track layout, following the same layout as a 35 track  disk, but with 5 extra tracks. These contain 17 sectors each, like tracks 31-35. Some of the PC utilities do allow you to create and  work  with  these files. This can also have error bytes attached like variant #1.
-  - The Commodore 128 allowed for "auto-boot" disks. With this, t/s 1/0 holds a specific byte sequence which the computer recognizes  as  boot code. See the document [[..:..:c128boot|C128BOOT.TXT]] for more info.+  - The Commodore 128 allowed for "auto-boot" disks. With this, t/s 1/0 holds a specific byte sequence which the computer recognizes  as  boot code. See the document [[..:c128boot|C128BOOT.TXT]] for more info.
  
 Below is a small chart detailing the standard file sizes of  D64  images, Below is a small chart detailing the standard file sizes of  D64  images,
doc/cbm/disk/image/d64.1590967414.txt.gz · Last modified: 2020/06/01 01:23 by admin

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