{
{    The purpose of this request is to translate a file byte address into a
{  logical device address.
{
{       DMP$BUILD_DEVICE_ADDRESS (P_FDE, P_DFD, P_FMD, P_FAU, BYTE_ADDRESS,
{                                NUMBER_BYTES, DEVICE_ADDRESS, STATUS)
{
{ P_FDE:(input)  This parameter specifies a pointer to the file descriptor
{      entry for the file.
{
{ P_DFD:(input)  This parameter specifies a pointer to the disk file
{      descriptor entry for the file.
{
{ P_FMD:(input)  This parameter specifies a pointer to the file medium
{      descriptor entry for the file.
{
{ P_FAU:(input)  This parameter specifies a pointer to a file allocation
{      unit for the file.
{
{ BYTE_ADDRESS:(input)  This parameter specifies the byte address to be
{      translated.
{
{ NUMBER_BYTES:(input)  This parameter specifies the number of bytes
{      associated with this io transfer.
{
{ DEVICE_ADDRESS:(output)  This parameter returns the logical device address
{      associated with the file byte address.
{
{ STATUS:(output)  This parameter returns the request status.
{
