{HEAD ~ a first adder} configured to {TAIL ~ modulo} add the A register value and an MD5 pre adder value, wherein the MD5 pre adder value comprises the modulo sum of an MD5 message segment and an MD5 constant value 
{ HEAD ~ a first adder } configured to { TAIL ~ modulo } add the A register value and an MD5 pre adder value , wherein the MD5 pre adder value comprises the modulo sum of an MD5 message segment and an MD5 constant value
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH