Simultaneously multi-threaded processor

Abstract

A synchronous multi-threaded processor, comprising: an index RAM, a storage buffer, a data cache, and at least two pipelines, wherein: the at least two pipelines are respectively connected to the index RAM, the storage cache, and the The data caches are all connected, and are suitable for accessing the data caches; each pipeline has a one-to-one corresponding data cache area, and the data cache area is used for: when the corresponding pipeline receives the data to be stored When the number of bits is greater than the maximum number of data bits of the corresponding pipeline, store a part of the data corresponding to the data storage instruction; the data shifter is suitable for shifting the data in the data buffer area corresponding to different pipelines to restore The data to be stored is stored in the storage buffer. The above solution can use a pipeline with a lower number of bits to support a processor with a higher number of bits while realizing real-time data storage.

Description

technical field [0001] The invention relates to the field of processors, in particular to a synchronous multi-thread processor. Background technique [0002] A cache is an integral part of the memory subsystem. A cache temporarily stores data in memory to provide fast access for the processor. The cache structure of the cache can be multi-layered, such as a first-level cache and a second-level cache. In the prior art, caches can be further divided into data caches and instruction caches according to different stored data. [0003] Synchronous Multi-Threading (Simultaneous Multi-Threading, SMT) is a technology that optimizes resource utilization efficiency on a chip. In an SMT processor, storage resources can be multiplexed by different hardware threads, and computing resources such as floating-point units, arithmetic logic units, and caches are shared by multiple threads. [0004] In the prior art, when the processor is performing pipeline operations, if there is a data ...

AI Technical Summary

Problems solved by technology

However, as the number of bits of the processor increases, the cost of increasing the number of processing bits corresponding to the corresponding pipeline becomes higher and higher.

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