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Processor and information processing apparatus with a reconfigurable circuit

  • US 6,157,997 A
  • Filed: 03/12/1998
  • Issued: 12/05/2000
  • Est. Priority Date: 03/13/1997
  • Status: Expired due to Fees
First Claim
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1. An information processing apparatus comprising:

  • a processor including an instruction decoder for decoding an instruction to be executed and at least one function unit for executing the instruction using source data according to a result of decoding of the instruction decoder;

    a reconfigurable circuit provided outside the processor and reconfigured to a dedicated operating circuit for executing a particular operating function;

    a memory assigned with a part of addresses in an address space of a main memory; and

    a control circuit provided outside the processor, for monitoring the memory during the execution of instructions by the processor and, when an activated value in a particular area in the memory is detected, activating the reconfigured circuit instead of the at least one function unit in the processor and controlling the reconfigured circuit to execute the particular operating function.

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