Method and device for extending processor instruction set

Abstract

The invention discloses a method and a device for extending a processor instruction set and relates to the technical field of communication. Under the prerequisites of not modifying a processor core, the processing speed of the processor is improved. The method comprises the following steps: a monitoring module identifies instructions by an on-chip bus and stores an extended instruction in the instructions to a local storage; after the processor core loads from a memory to the extended instruction through the on-chip bus, the processor core decodes the extended instruction to generate undefined instruction abnormality; after the processor core executes a current instruction, the processor core executes an abnormality processing procedure, and suspends to execute the instruction after the extended instruction; in addition, the monitoring module triggers an execution module corresponding to the extended instruction to execute the extended instruction; the monitoring module controls the processor core to exit from the abnormality processing procedure, so that continuous execution of the instruction after the extended instruction by the processor core is facilitated. The method and the device disclosed by the invention are suitable for an execution process of the extended instruction.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for extending a processor instruction set. Background technique [0002] With the development of communication technology, in order to improve the processing capability of the communication system, it is often necessary to use hardware acceleration modules to process complex services, such as floating-point operations, encryption and decryption, compression and decompression, and other operations. At present, the following methods can be used to realize the processing of complex business: [0003] Special purpose instructions such as floating point instructions are executed using a coprocessor, that is, the processor needs to send a special purpose instruction to the coprocessor for execution. The advantage of this processing method is that programming is simple, and coprocessor instructions can be used directly; the disadvantage is that the processor ...

AI Technical Summary

Problems solved by technology

This processing method is more flexible in the implementation process, because the acceleration module is decoupled from the processor, but there is frequent data interaction between the processor and the acceleration module, which reduces the processing performance of the business

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