trdos format

ZXNet echo conference «zx.spectrum»

From Alex Kovrigin To All 2 April 1997

Hello Roland,
In a message dated 31 Mar 97 you wrote to All:

RC> Please remind me of the trdos disk format.
RC> The disk header format is especially necessary. (I don’t remember at all why)

8 sector of the zero track.

#E1 - the first free sector
#E2 - track with the first free sector
#E3 - disk type:
#16 - 80x2
#17 - 40x2
#18 - 80x1
#19 - 40x1
#E4 - total number of files
#E5, #E6 - number of free sectors
#E7 - code #10 (TRDOS disk)
#F4 - number of deleted files
#F5...#FC - disk name

RC> Is the file header format this or not?

RC> 00..07 file name
RC> 08 extension
RC> 09..10 length in bytes <- START
RC> 11..12 start address if C <- LENGTH
RC> 13 length in sectors
RC> 14 start, track <- number of the first sector
RC> 15 start, sector <- number of the first track

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__/// /With/ /Best/ /Regards/ /Alex/ /Kovrigin/
\XX/ A1200/B1230/882/50Mhz/34Mb/QFB1Gb/ZyX16k8