private void markReserved(int ropReg,int category){
  reservedRopRegs.set(ropReg,ropReg + category,true);
}

private void markReserved ( int ropReg , int category ) { reservedRopRegs . set ( ropReg , ropReg + category , true ) ; }
marks a range of rop registers as " reserved for a local variable . "
