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Pipeline-controlled information processing system for generating updated condition code

  • US 4,742,453 A
  • Filed: 07/03/1984
  • Issued: 05/03/1988
  • Est. Priority Date: 07/06/1983
  • Status: Expired due to Fees
First Claim
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1. A pipeline-oontrolled information processing system for executing programmed instructions, comprising:

  • means for providing instructions;

    a plurality of operation units for performing operations in response to said instructions;

    a plurality of condition code generator units connected to said operation units for monitoring operations performed by said operation units and generating condition codes in response to said operations, each condition code generator unit having a counter section and an operating section for operating said counter section in the event of generation of a condition code;

    a condition-code-updating instruction discrimination unit connected to said condition code generator units and including means for determining one of said condition code generator units to be used to generate a condition code in response to each of said instructions, and means responsive to said determining means for actuating the counter section of said determined generator unit to produce a count; and

    a condition-code-establishment decision unit connected to said condition code generator units and including means for monitoring counts held by the plurality of counter sections and means responsive to said monitoring means for producing a signal indicative of the generation of an updated condition code of the determined condition code generator unit and the updated condition code if an updated condition code has been generated by the determined condition code generator unit.

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