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
Transfer formulas
Method for forming pattern
Tab visibility
Probe for ultrasound diagnostic apparatus
Indicating transfer in an IMS network
Biaxially oriented film which could be thermally laminated with paper and other substrates
Compositions and methods of vascular injury repair
  Randomly Featured Patents
Vibration and shock damping air blower
Nonvolatile memory system, and data read/write method for nonvolatile memory system
Player insert for a gaming machine, a gaming system and a method of operating a gaming system
Image forming apparatus
Method and system for graphically displaying audio data on a monitor within a computer system
Expansion of a stacked register file using shadow registers
Facsimile communication system
Devices and methods for transmitting USB data over DisplayPort transmission media
Indane acetic acid derivatives and their use as pharmaceutical agents, intermediates, and method of preparation
Semiconductor device, solar cell module, and methods for their dismantlement