REMOVED  pin         $17    line 1526
NEEDED   pin         $19    line 1528
NEEDED   pin         $20    line 1529
REMOVED  pin         $4     line 1530
NEEDED   pin         $21    line 1531
NEEDED   instruction addu   line 1556
NEEDED   pin         $3     line 1580
REMOVED  barrier            line 1581
NEEDED   instruction addu   line 1583
NEEDED   keepalive          line 1604
