Amstrad Diredit (Popular Computing Weekly)Applications Disque
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Disc directory editing made easy

DireEdit provides an easy directory management function with one key Erase, Rename, Unerase and a host ol other functions. Type in the program, correct any mistakes and save it. Insert the disc you wish to examine and type Run. Enter A or B when prompted for the drive, and the first of four pages containing the directory will be loaded.
You now have ten options available, each accessed by pressing a function key.

  • f0 - Quit program.
  • f1 - Renames the file indicated by pressing A to P. corresponding to the letter beside each filename
  • f2 - Erase the file.
  • f3 - Reclaims any file visible that has been erased.
  • f4 - Toggles between Sys and Dir. With Sys set the filename will not be seen with Cat and Dir, and requires the CP/M command Dirsys to reveal it. With Dir set, Cat and Dir work normally.
  • f5 - Toggles between RO and RW. With RO set, the filename cannot be erased without an error occuring.
  • f6 - Change User area. If a file is set to User n. the Amsdos command .User, n is required before it can be seen with Cat and Dir. However, files with Sys set (f4) are available to all User areas
  • f7 - Copies altered page to disc.
  • f8 - Next page of 16 directory entries (out of 64). Pressing f8 when on page 4 will return you to page 1.
  • f9 - Restart program to select a new disc or drive.
The program will work with both System and Data format discs The format is automatically detected and is shown at the top of the screen along with the drive and page numbers.

Files of over 16K in length are stored in tow or three entries, so make sure you alter each entry in the same way or strange things may happen. The following table shows the format of the directory which is exploited by the program.

Each entry takes up 32 bytes.

  • Byte 0 = 0-15 : user number or &E5 : erased file. Byte 1-8 = filename, padded out with spaces.
  • Byte 9-11 = suffix, padded out with spaces.
  • Byte 9 = Bit 7 set: read only file. Bit 7 off: read/write file.
  • Byte 10 = Bit 7 off: Sys format. Bit 7 off: Dir format.
  • Byte 12-15 not used by DirEdit.
  • Byte 16-31 - each contains sector number (if used).

★ PUBLISHER: Popular Computing Weekly
★ YEAR: 1986
★ AUTHOR: Alastair Scott


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L'Amstrad CPC est une machine 8 bits à base d'un Z80 à 4MHz. Le premier de la gamme fut le CPC 464 en 1984, équipé d'un lecteur de cassettes intégré il se plaçait en concurrent  du Commodore C64 beaucoup plus compliqué à utiliser et plus cher. Ce fut un réel succès et sorti cette même années le CPC 664 équipé d'un lecteur de disquettes trois pouces intégré. Sa vie fut de courte durée puisqu'en 1985 il fut remplacé par le CPC 6128 qui était plus compact, plus soigné et surtout qui avait 128Ko de RAM au lieu de 64Ko.