Board of Governors for Higher Education, State of Rhode Island and Providence Plantations

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Augustus K Uht

Ayse Yilmazer

A system is disclosed for providing branch misprediction prediction in a microprocessor. The system includes a mispredicted branch table that includes address, distance, and true/not true fields, and an index to the mispredicted branch table that is formed responsive to 1) a current mispredicted branch, 2) a global history, 3) a global misprediction history, and 4) a branch misprediction distance.

System and method for branch misprediction prediction using a mispredicted branch table having entry eviction protection

A computer processing system is disclosed that includes a cache that includes cache blocks of data. The system includes a marking sub-system, an ordering sub-system, and a replacement sub-system. The marking sub-system identifies and marks cache blocks that were provided to the cache via a wrong path with marking data. The ordering sub-system provides an order in which the cache blocks of data will be replaced in the cache, and the ordering sub-system is responsive to the marking data. The replacement sub-system replaces cache blocks in the cache in accordance with the ordering sub-system as required.

Growing community of inventors

Wakefield, RI, United States of America

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