update(ics2017-pa2.2): implement 'shr', pass 'shift'
update(ics2017-pa2.2): implement 'shr', pass 'shift'

issue sabertazimi/ics-2017#2

sabertazimi/hust-lab,sabertazimi/hust-lab,sabertazimi/hust-lab,sabertazimi/hust-lab,sabertazimi/hust-lab,sabertazimi/hust-lab,sabertazimi/hust-lab,sabertazimi/hust-lab,sabertazimi/hust-lab,sabertazimi/hust-lab