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