TR-DOS filesystem: Difference between revisions

TR-DOS filesystem (view source)

1,094 bytes added , 12 December 2022

90

edits

@@ Line 156: / Line 156: @@
 | 0a-0b
 | 23 00
-| 23 bytes long
+| 35 bytes long
 | Length of the file
 |-
 | 13
 | 0C
-| 08
+| 01
 | 1 sector long
 | Number of sectors the file uses
@@ Line 169: / Line 169: @@
 | 0B
 | Start sector 11
+| Sector the file starts from (Note, sectors number from 0 regardless of the actual disk layout)
+|-
+| 15
+| 0E
+| 01
+| Start logical track 1
+| Logical Track the file starts from. (Note, the tracks are encoded as CH, so for DS drives, track 0=C0H0, 1=C0H1, 2=C1H0, ect)
+|}
+====Character array====
+This is the directory entry for a character array of 10,5 and is of length 55 bytes. (See other articles on the encoding of arrays in saved files)
+The Raw dirent is as follows:
+64 61 74  61 20 20 20  44 A7 5F 37  00 01 0A 01  cdata   D._7....
+{| class=wikitable
+|-
+! | Offset (dec)
+! | Offest (hex)
+! | Bytes
+! | Content
+! | Description
+|-
+| 0-7
+| 00-07
+| 63 64 61 74  61 20 20 20
+| "cdata   "
+| Filename
+|-
+| 8
+| 08
+| 44
+| "D" (Data)
+| File type
+|-
+| 9-10
+| 09-0A
+| A7 5F
+| A7=10100111, Bit 5,6,7=101 marking a Character array. 5f value unused.
+| Contains the marker for the array type, in this case, 101=Character array
+|-
+| 11-12
+| 0a-0b
+| 37 00
+| 55 bytes long
+| Length of the file
+|-
+| 13
+| 0C
+| 01
+| 1 sector long
+| Number of sectors the file uses
+|-
+| 14
+| 0D
+| 0A
+| Start sector 10
 | Sector the file starts from (Note, sectors number from 0 regardless of the actual disk layout)
 |-