Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate
2004-02-19
2008-10-07
Malzahn, David H (Department: 2193)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
Reexamination Certificate
active
07433912
ABSTRACT:
A unified data flow is provided that allows multiplication of SIMD and non-SIMD multiplies in one multiplier. The multiplies may be both integer and floating point operations. The multiplier is partitionable having a plurality of sub-trees. The multiplier is configured to be a single tree structure in response to a non-SIMD multiplication instruction and as a partitioned tree structure in response to a SIMD multiplication instruction. At least two multiplication operations can be performed in parallel in the partitioned tree structure in response to the SIMD multiplication instruction and a single multiplication operation is performed in the single tree structure in response to the non-SIMD multiplication instruction. Appropriate formatting of the input operands and selection of data from the tree structures is performed in accordance with the instruction.
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Brooks Jeffrey S.
Jagodik Paul J.
Olson Christopher
Dorsey & Whitney LLP
Malzahn David H
Sun Microsystems Inc.
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