Electrical computers and digital processing systems: processing – Processing architecture – Microprocessor or multichip or multimodule processor having...
Reexamination Certificate
2002-12-06
2009-02-17
Chan, Eddie P (Department: 2183)
Electrical computers and digital processing systems: processing
Processing architecture
Microprocessor or multichip or multimodule processor having...
C712S227000, C712S210000, C712S036000
Reexamination Certificate
active
07493470
ABSTRACT:
Apparatus and methods for real-time control using a data processor. In one aspect, the invention comprises an improved processor having one or more extension instructions (and associated supporting pipeline hardware) which are specially adapted for use in a real-time control algorithm running on the processor. In one exemplary embodiment, the processor is a 32-bit pipelined RISC device having custom multiply (CMUL) and multiply-accumulate (CMAC) instructions added to the extension instruction set to optimize algorithm performance in real-time linear time-invariant (LTI) applications. Specialized extension hardware, and methods for generating a processor design adapted for real-time control applications are also disclosed.
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Fauth e
Cumplido Rene
Goodall Roger
Jones Simon
ARC International PLC
Chan Eddie P
Faherty Corey S
Ropes & Gray LLP
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