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Term

Meaning

Input

A value as passed from BASIC+. Another MFS may modify this value before an MFS receives it.

Output

A value as returned from the BFS. Another MFS may modify this value before an MFS receives it.

null

An argument passed with no value from BASIC+.

unassigned

An argument passed unassigned from BASIC+. An attempt to use this argument before initializing it will result in an error.

unchanged

An indication that the BFS makes no change to the value(s) passed in this argument, although the value may be used by other filing systems.

BFS List

The list of filing systems (MFS and BFS) not yet called to access the current file or media map. (As a filing system is called, it removes itself from this list.) The values in this list are delimited with subvalue marks (@SVM).

volume qualifier Information

Information about the actual physical location of a file or media map (almost always the subdirectory path of the file or media map), or field three of volume pointer in the VOC file for the current file or media map.

Called by

The primary means to access this MFS call. This is either the BASIC+ command that generates the MFS call, or if no BASIC+ command is available, the System Monitor command(s) that provides primary access to the MFS call. The phrase "direct access only" indicates that there is neither an BASIC+ nor System Monitor command that uses the call, and that it is available only by calling the filing system directly or through a system subroutine.

True

1

False

0