Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate
1999-06-16
2003-01-21
Malzahn, David H. (Department: 2124)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
C708S523000, C712S221000
Reexamination Certificate
active
06510444
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to data processors, and more particularly to a data processor architecture and instruction format for increased efficiency.
BACKGROUND OF THE INVENTION
In data processing integrated circuits there is a trade-off between programmability and semiconductor area. In particular in the digital signal processing (DSP) area, a general purpose DSP processor may require a large amount of semiconductor area which is used for address generation, instruction decoding and sequencing, and data buffering. Alternatively, a hardware customized DSP may be small in semiconductor area but is usually lacking the flexibility provided by a general purpose DSP processing. A new data processor architecture and instruction format that better balances the programmability vs. semiconductor area trade-off would be valuable.
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Bergen Steven E.
Mackre Francois
Hill Susan C.
Malzahn David H.
Motorola Inc.
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