Integer Execution Unit - How is Integer Execution Unit abbreviated?
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The first method reduces power in the integer execution unit
with aggressive clock gating, after determining that the upper portion of functional unit is not needed.
The C stage holds the fully decoded instruction, and controls the operation of the integer execution unit and the floating point unit.
These two execution units can operate in parallel, with one active instruction in the FPU and one instruction in each of the three stages of the integer execution unit (IEU).