Patent ID: 6148374
Filing Date: 2000-11-14
Classification: G06F

Abstract:
A method of controlling the state of first and second signals representative of first and second sets in a tag memory which is the least recently used, comprising:storing, under a single address location in the tag memory, first and second tag fields representative of first and second data, respectively;storing in the tag memory the first and second signals representative of which of said first and second sets is the least recently used;producing a first comparative signal indicative of a match between a portion of an address representative of requested data and a first tag field output from the tag memory;producing a second comparative signal indicative of a match between said portion of an address and a second tag field output from the tag memory;producing an output signal indicative of the availability of the requested data in response to said first and second comparative signals;controlling the state of said first signal in response to said output signal and said first comparative signal; andcontrolling the state of said second signal in response to an external signal and said output signal.