{
{   The purpose of this request is to reserve a segment number within the
{   requesting task's
{ address space for subsequent explicit assignment.  The reserved segment does
{ not have any
{ file or segment associated with it as a result of this request; the segment
{ number is simply
{ not chosen by memory management on any subsequent requests for an empty
{ segment.
{   The segment can be used in subsequent requests that explicitly pass
{   segment management the
{ segment number to be used.
{
{       MMP$RESERVE_SEGMENT_NUMBER (SEGMENT_NUMBER, STATUS)
{
{ SEGMENT_NUMBER: (output) This parameter specifies the segment number that
{ has been reserved.
{
{ STATUS: (output) This parameter specifies the request status.
{

