STORE-TO-LOAD FORWARDING FOR PROCESSOR PIPELINES

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STORE-TO-LOAD FORWARDING FOR PROCESSOR PIPELINES - A simplified explanation of the abstract

This abstract first appeared for US patent application 18747414 titled 'STORE-TO-LOAD FORWARDING FOR PROCESSOR PIPELINES

The abstract describes systems and methods for store-to-load forwarding in processor pipelines, specifically for an integrated circuit executing instructions.

The integrated circuit includes a processor pipeline, a store queue with entries associated with store instructions, and store-to-load forwarding circuitry.
The store-to-load forwarding circuitry compares virtual addresses of load instructions to tags in the store queue, selects matching entries, and forwards data to the load instructions.

Potential Applications:

This technology can be applied in high-performance processors to improve efficiency and reduce latency in data processing.
It can enhance the overall performance of complex computing systems by optimizing data retrieval processes.

Problems Solved:

Addresses the issue of data dependency delays in processor pipelines by efficiently forwarding store data to load instructions.
Improves the speed and efficiency of data retrieval operations in integrated circuits.

Benefits:

Enhances the overall performance and efficiency of processor pipelines.
Reduces data retrieval latency and improves the speed of data processing operations.

Commercial Applications:

This technology can be utilized in advanced computing systems, data centers, and high-performance computing applications to optimize data processing operations and improve overall system performance.

Questions about Store-to-Load Forwarding: 1. How does store-to-load forwarding improve the efficiency of processor pipelines? 2. What are the key benefits of implementing store-to-load forwarding in integrated circuits?

Frequently Updated Research: There may be ongoing research in the field of processor pipeline optimization and data forwarding techniques that could further enhance the efficiency of store-to-load forwarding systems. Researchers may be exploring new algorithms and methodologies to improve data retrieval processes in integrated circuits.

Original Abstract Submitted

Systems and methods are disclosed for store-to-load forwarding for processor pipelines. For example, an integrated circuit (e.g., a processor) for executing instructions includes a processor pipeline; a store queue that has entries associated with respective store instructions that are being executed, wherein an entry of the store queue includes a tag that is determined based on a virtual address of a target of the associated store instruction; and store-to-load forwarding circuitry that is configured to: compare a first virtual address of a target of a first load instruction being executed by the load unit to respective tags of one or more entries in the store queue; select an entry of the store queue based on a match between the first virtual address and the tag of the selected entry; and forward data of the selected entry in the store queue to be returned by the first load instruction.