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