 Image Number 3 for United States Patent #6502117.
A method and apparatus for performing complex arithmetic is disclosed. In one embodiment, a method comprises decoding a single instruction, and in response to decoding the single instruction, moving a first operand occupying lower order bits of a first storage area to higher order bits of a result, moving a second operand occupying higher order bits of a second storage area to lower order bits of the result, and negating one of the first and second operands of the result.
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