Resources Contact Us Home
Method and apparatus for a line based non-blocking data cache

Image Number 3 for United States Patent #5555392.

A method and apparatus for providing a non-blocking cache that uses substantially less die area than a prior art non-blocking cache. In the present invention, pending count and ignore fill fields are added to each line of the cache. These fields are used in conjunction with a valid field (that indicates whether or not the line contains valid data) to keep track of the status of pending load operations that have resulted in cache misses. The pending field keeps a count of the number of outstanding load misses for the line. If a store occurs for an address of a line, the ignore fill field is set to indicate that any fills that are pending for the line are to be ignored because the pending fills will be supplying stale data to the line.

  Recently Added Patents
Method of requesting CQI reports
Phase-change memory device having multiple diodes
Method and system for modifying satellite radio program subscriptions in a mobile vehicle
System and method for reliable packet data transport in a computer network
Incentive based recommendation method for mobile station content
Methods and systems for optimizing data accesses
Method and apparatus for producing homogeneous magnetic fields
  Randomly Featured Patents
Concept-based categorization of unstructured objects
Method and apparatus for locating a subscriber unit in a communication system
System and method for single instance storage
Process for purification of contaminated groundwater
Apparatus for and method of thermophoretic protection of an object in a high-vacuum environment
Method for preparation of olefin oligomer
Polarization insensitive multilayer planar reflection filters with near ideal spectral response
Measurement of evoked nervous system potentials
Unique address space and method for a transport network
Uninterruptible power supply system