Otherwise {TAIL ~ the routine} continues at {HEAD ~ process} 1051 to retrieve the next byte in the program 
Otherwise { TAIL ~ the routine } continues at { HEAD ~ process } 1051 to retrieve the next byte in the program
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH