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US 2014/0006470 A1Published application
Carry Look-Ahead Adder with Generate Bits and Propagate Bits Used for Column Sums
AssigneeMIPS Technologies, Inc.
InventorLeonard D. Rarick
Life of this patent
Estimating the term…
Abstract
A carry look-ahead adder includes an input stage to produce generate bits and propagate bits from input signals. An output stage produces output sums exclusively from the generate bits, the propagate bits and carry in bits.
Claims20
A carry look-ahead adder, comprising:
- an input stage to produce generate bits and propagate bits from input signals;
- and
- an output stage to produce output sums exclusively from the generate bits, the propagate bits and carry in bits.
A processor, comprising:
- a multiply unit, wherein the multiply unit includes a carry look-ahead adder comprising
- an input stage to produce generate bits and propagate bits from input signals;
- and
- an output stage to produce output sums exclusively from the generate bits, the propagate bits and carry in bits.
1 more element
A computer, comprising:
- a bus;
- input devices connected to the bus;
- output devices connected to the bus;
- and
- a processor connected to the bus, wherein the processor includes a carry look-ahead adder that processes sum operands comprising the generate bits and propagate bits as sorted inputs.
2 more elements
A non-transitory computer readable storage medium, comprising executable instructions to describe:
- a processor with a carry look-ahead adder that processes sum operands comprising generate bits and propagate bits as sorted inputs.
Dependencies are inferred from the claim text.