Commodore Computer Commodore 64 Manuel d'utilisateur Page 28

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 65
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 27
Table 5.3: DIRECTORY FORMAT
*STRUCTURE OF SINGLE DIRECTORY ENTRY
25
Track
18,Sector1for4040
Track 39, Sector 1 for 8050
BYTE
DEFINITION
0,1
Track and sector of next directory block.
2-31
*File entry 1
34-63
*File entry 2
66-95
*File entry 3
98-127
*File entry 4
130-159
*File entry 5
162-191
*File entry 6
194-223
*File entry 7
226-255
*File entry 8
BYTE
CONTENTS DEFINITION
0
128+type
File type OR'ed with $80 to indicate properly closed
file.
TYPES: 0= DELeted
I = SEQential
2 = PROGram
3=USER
4 = RELative
1,2
Track and sector of 1st data block.
3-18
File name padded with shifted spaces.
19,20
Relative file only: track and sector for first side sector
block.
21
Relative file only: Record size.
22-25
Unused.
26,27
Track and sector of replacement file when OPEN(a)is in
effect.
28,29
Number of blocks in file: low byte, high byte.
Vue de la page 27
1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 64 65

Commentaires sur ces manuels

Pas de commentaire