The yen gave up some recent gains against the dollar in Asian trade Monday, as Japanese officials again warned that intervention was possible if market moves were too rapid. At one stage, the yen fell to a session low of Y129.16, before regaining a little poise in late trade. Economic data released late in the session weighed on the yen breifly. Core private machine orders fell 15.6% on month, the largest monthly fall in four years to the lowest level since 1987.//MarketNews