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Storage system comprising a main store and a buffer store

  • US 3,986,171 A
  • Filed: 11/20/1974
  • Issued: 10/12/1976
  • Est. Priority Date: 12/21/1973
  • Status: Expired due to Term
First Claim
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1. A data processing system including a processor and a storage configuration including a first store and a relatively faster second store, wherein data is organized in each of said stores in at least one data class and wherein each data class is composed of at least one word block having a predetermined number of words of data, each word having a plurality of word portions, the number of words in said second store being less than the number of words in said first store, comprisingmeans for supplying from said processor a predetermined word block address a predetermined word block for addressing individual word blocks within said first and second store;

  • means for storing said predetermined word block address;

    address store address store means for storing addresses of word blocks stored in said second store;

    comparison means for comparing said stored predetermined word blocks address with said addresses stored in said third means, and for producing a selecting signal if said stored predetermined word block address does not correspond with said addresses stored in said third means;

    selection means responsive to said selecting signal for effecting a transfer of said predetermined word block from said first store to said second store;

    transfer means responsive to said selecting signal for effecting a transfer of said predetermined word block address from said second means to said address store means; and

    activating means for modifying the mode of addressing said second store;

    address generator means responsive to said activating means, for generating successive addresses of word blocks in said second store and loading these addresses in said address store means for addressing said second store.

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