Data processor supporting interrupt shielding instruction

Abstract

A data processor supporting an interrupt shielding instruction comprises an instruction extraction unit, an instruction decoding unit, an instruction execution unit and an exception and interrupt processing unit; an instruction set in an instruction memory further comprises an interrupt shielding instruction; the interrupt shielding instruction comprises a type field, a start field and an end field; the data processor further comprises an interrupt shielding controller; the interrupt shielding controller is used for detecting the interrupt shielding instruction information and the following instruction complete information transmitted by the instruction execution unit; an instruction sequence between the initial position and the end position of the relative current interrupt shielding instruction is generated into the interrupt shielding information; the output end of the instruction execution unit is connected with the interrupt shielding controller; and the interrupt shielding controller is connected with the exception and interrupt processing unit. The data processor supporting the interrupt shielding instruction avoids the damage to a framework and simplifies the design complexity.

Description

technical field [0001] The present invention relates to a data processor. Background technique [0002] In order to improve the concurrency and throughput of the data processor and improve the efficiency of switching between multiple processes, a multi-thread processor is introduced. Compared with multi-process, the most prominent point of multi-threading is that it realizes the sharing of resources, which greatly improves the operating efficiency of the program. [0003] The sharing of instruction segments or data segments between multiple threads is accomplished by means of locks. For example, when two threads share a lock, when one thread acquires the lock, the other thread is in a waiting state until the lock is released, thus ensuring the accuracy of resource sharing. For the most commonly used spin lock, the process of obtaining the lock usually requires two steps: the first step is to obtain the state of the lock from the memory; the second step is to determine whet...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of existing data processors that destroy the structure and increase design complexity when solving the problem of interrupt competition locks, the present invention provides a data processor that supports interrupt masking instructions that avoids destroying the structure and simplifies design complexity

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