A portion of the clock tree supplies {HEAD ~ a plurality} of clocks to {TAIL ~ the execution circuit}, including at least a first clock clocking the first subcircuit and at least a second clock clocking the second subcircuit 
to
A portion of the clock tree supplies { HEAD ~ a plurality } of clocks to { TAIL ~ the execution circuit } , including at least a first clock clocking the first subcircuit and at least a second clock clocking the second subcircuit
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL 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