Realizing Load Address Prediction Using Address Prediction Table Based on Load Path History in Processor Based System

摘要

The aspects disclosed in the detailed description include implementing load address prediction using an address prediction table based on load path history in a processor based system. In one aspect, the load address prediction engine provides a load address prediction table that includes a plurality of load address prediction table entries. Each load address prediction table entry includes a predictor tag field and a memory address field for a load instruction. The load address prediction engine generates a table index and a predictor tag based on the identifier and load path history for the detected load instruction. The table index is used to look up the corresponding load address prediction table entry. If the predictor tag matches the predictor tag field of the load address prediction table entry corresponding to the table index, the memory address field of the load address prediction table entry is provided as the predicted memory address for the load instruction.