{}
{  The purpose of this request is to obtain the status of the designated
{ tape I/O operation.
{}
{       IOP$TAPE_REQUEST_STATUS (SYSTEM_FILE_ID, IO_ID, IO_STATUS, STATUS)
{}
{ SYSTEM_FILE_ID: (input) This parameter specifies the system
{       file identification of the file.
{}
{ IO_ID: (input) This parameter identifies the I/O request
{       for which the present status is desired.
{}
{ IO_STATUS: (output) This parameter specifies the status of the identified
{       tape I/O request.
{}
{ STATUS: (output) This parameter specifies the request status.
{       Condition:
{               ioc$improper_io_id
{               ioc$improper_system_file_id
{               ioc$io_request_not_found
{               ioc$tape_io_incomplete
{               ioc$os_failure
{       Identifier: ioc$physical_io
{}
    { Is a wait for response option desired? }
    { If yes,  wait: ost$wait in deck OSDWNW can be used. }
