barrel shifter meaning

  "barrel shifter" in a sentence
  • [Computer]
    <hardware> A hardware device that can shift or rotate a data word by any number of bits in a single operation. It is implemented like a multiplexor, each output can be connected to any input depending on the shift distance.


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  1. The ALU and barrel shifter executed instructions in a single cycle.
  2. It had an arithmetic logic unit ( ALU ) and barrel shifter.
  3. A barrel shifter is often implemented as a cascade of parallel 2�1 multiplexers.
  4. A common usage of a barrel shifter is in the hardware implementation of floating-point arithmetic.
  5. The barrel shifter has a variety of applications, including being a useful component in microprocessors ( alongside the ALU ).

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PC Version