Dollar's retreat from 89.99 suggests further choppy trading below last week's high at 90.79 is in store and consolidation with mild downside bias is seen for a correction of recent erratic upmove towards 88.70/80, however, reckon support at 88.42 would contain weakness and yield rebound later.  
On the upside, above resistance at 90.09 would yield gain to 90.40/50 but only break of 90.79 confirms the rise from 87.10 low has resumed.