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DATA PROCESSING SYSTEM, APPARATUS AND METHOD FOR PERFORMING FRACTIONAL MULTIPLY OPERATIONS

  • US 20090300325A1
  • Filed: 08/12/2009
  • Published: 12/03/2009
  • Est. Priority Date: 08/09/2002
  • Status: Active Grant
First Claim
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1. A method comprising:

  • decoding a fractional multiply operation that specifies a first operand and a second operand both stored in a first source register, and a third operand and a forth operand both stored in a second source register;

    executing a first multiply operation on the first and third operands pursuant to the fractional multiply operation to generate a first intermediate product;

    executing a second multiply operation on the second and fourth operands pursuant to the fractional multiply operation to generate a second intermediate product;

    shifting the first intermediate product and the second intermediate by a predetermined number of bit positions; and

    storing the shifted first and second intermediate products in a destination register.

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