{ }
{   The purpose of this request is to obtain a signal and its handler
{ which corresponds to the caller's ring.
{
{       TMP$FIND_SIGNAL (SIGNAL_FOUND, SIGNAL, SIGNAL_HANDLER)
{
{ SIGNAL_FOUND: (output) This parameter specifies whether a signal
{       was present for the specified execution ring.
{
{ SIGNAL: (output) This parameter specifies the returned signal.
{
{ SIGNAL_HANDLER: (output) This parameter specifies the handler for
{       the signal.
{
