TOPS-10 Monitor Calls Manual Volume 2 AA-K039D ... - Trailing-Edge

FILOP. [CALLI 155]
1 FO.ASC
2 FO.UOC
Assigns an extended channel
number, one that is greater
than 17. When you set this
bit for an OPEN function
(function codes 1 through 6)
the monitor assigns the next
available channel number. It
then performs the requested
function. On return, the
monitor returns the assigned
channel number in FO.CRN in
the argument block or, if
FO.CFW is set, in the address
pointed to by the left half of
the word at the location
specified in FO.FNC. The
number will be equal to or
greater than 20 so that
existing channel number
allocations will not be
affected.
Specifies the file that is
open on the indicated channel.
Normally, a RENAME function is
performed on the file
specified in the right half of
.FOLEB, and after it is
completed successfully, the
1/0 channel is automatically
closed.
When you set FO.UOC, however,
the right half of .FOLEB is
ignored, and the function is
performed on the file that is
open on the specified channel.
3 FO.CFW
Indicates that the right half
of this function word contains
an address. At that address,
you must store the following
information:
channel-addr"function-code
In the word pointed-to by
FO.CFW, you specify the
address of the channel number
in the left half, and the
function code in the right
half. For this format, the
field FO.CRN is ignored.
4-8
9-17 FO.CRN
18-35 FO.FNC
Reserved for use by DIGITAL.
Channel number.
Function code. The FILOP.
functions are described
following the argument list
definition.
22-144