Example TR-DOS Basic file

This is an example TR-DOS BASIC file an encoded on disk. the file listing is below.

Basic file listing

10 DIM a$(10(10.0),5(5.0))
20 DIM b(2(2.0),3(3.0))
30 FOR a=1(1.0) TO 10(10.0)
40 LET a$(a,3(3.0))="x"
50 LET a$(a,4(4.0))="y"
60 LET a$(a,5(5.0))="z"
70 NEXT a
80 LET x=10(10.0)
90 LET r$="test string"
100 RANDOMISE USR 15619(15619.0): REM : SAVE "basic"  LINE 300
110 RANDOMISE USR 15619(15619.0): REM : SAVE "code" CODE 30000,2000
120 RANDOMISE USR 15619(15619.0): REM : SAVE "cdata" DATA a$()
130 RANDOMISE USR 15619(15619.0): REM : SAVE "ndata" DATA b()
140 REM  RANDOMISE USR 15619: REM : FORMAT "testdisk"

This is the directory entry for a small basic program with variables defined in it when it was saved. The Raw dirent is as follows:

 62 61 73 69  63 20 20 20  42 EF 01 68  01 02 00 01  basic   B..h....

Offset (dec)	Offest (hex)	Bytes	Content	Description
0-7	00-07	62 61 73 69 63 20 20 20	"basic "	Filename
8	08	43	"B" (Basic)	File type
9-10	09-0A	EF 01	495 bytes	File size including variables area minus area at the end containing the line number.
11-12	0a-0b	68 01	360 bytes	Pointer to the start of the variables area in the file.
13	0C	08	8 sectors long	Number of sectors the file uses
14	0D	02	Start sector 2	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)