File Opening and Closing

Slide 14 of 53

Notes:

In VHDL87, the file is opened and closed when it come into and goes out of scope.

In VHDL93, there are two FILE_OPEN procedures, one of which returns a value of the status (success) for opening the file, and one which doesn’t. There is also a FILE_CLOSE procedure.

The values for FILE_OPEN_KIND are:

READ_MODE,

WRITE_MODE, and

APPEND_MODE.

The values for FILE_OPEN_STATUS are:

OPEN_OK,

STATUS_ERROR,

NAME_ERROR, and

MODE_ERROR.