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The execution unit (EU) in a CPU is responsible for executing instructions from the instruction pipeline. Key elements of the execution unit typically include the arithmetic logic unit (ALU), which performs arithmetic and logical operations; the floating-point unit (FPU), which handles floating-point calculations; and various registers for temporary data storage. Additionally, there may be multiplexers and control logic to manage data flow and instruction execution. These components work together to efficiently process and execute instructions.

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