Appeal No. 1998-0524
Application No. 08/522,067
Appellants argue that their single instruction operation
requires a multiply-add operation, without accumulation. The
Ando-Shipnes combination always sums the results of all of the
multiplications and adds a previously stored accumulation
value to generate a single result value (brief-page 5).
Appellants state:
Each of Applicant’s independent claims requires
either: 1) that execution of the instruction is
completed without summing/accumulating the results
of the multiply-add operations and without adding an
accumulation value (claim 24 -”without adding said
first and second data elements”; and claim 26 -
”without summing said plurality of result data
elements”); or
2) that a packed result containing the two
unaccumulated data elements is stored as an operand
for use by another instruction (claims 25 and 28).
(Brief-pages 6 and 7.)
Appellants note that zeroing the accumulation value of the
Ando-Shipnes combination would be costly and inefficient
(brief-page 7).
The Examiner responds that when the accumulation value is
zero, the Ando-Shipnes combination provides the same result.
(Answer-page 5.)
-7-7
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