; ; Christian Groessler, Oct-2000 ; ; offsets and defines for fdtable (internal use only) ; MAX_FD_INDEX = 12 ; max. # of open fds MAX_FD_VAL = 8 ; we have 8 IOCBs ft_entrylen = 4 ; length of table entry (it's not sufficient to change here! ; the code sometimes does two bit shifts to multiply/divide by ; this length) ft_usa = 0 ; usage counter ft_iocb = 1 ; iocb index (0,$10,$20,etc.), $ff for empty entry ft_dev = 2 ; device of open iocb (0 - device not remembered, eg. filename specified) ft_flag = 3 ; flags ; lower 3 bits: device number (for R: and D:) ; bit 3 - seeking supported by DOS/disk combination ; bit 4 - indicates a fd opened by the program as apposed to the ; inherited ones from program start (fd 0 to fd 2)