HDS_START - Start up HDS

Description:

This routine should be called to start up HDS prior to making calls to other HDS routines. It ensures that HDS is active, returning without action if it is already active.

Invocation:

CALL HDS_START( STATUS )

Arguments:

STATUS = INTEGER (Given and Returned)

The global status.

Notes:

This routine is now obsolete, as HDS starts itself up automatically when required.