A dsp soft error detection method based on difference transformation of linear assembly instructions

Abstract

The invention discloses a linear assembly instruction diversity conversion based DSP soft error detection method which can solve the problem that the conventional DSP soft error detection methods are large in performance cost. The DSP soft error detection method includes: dividing a program into storeless basic blocks, establishing a program control flow diagram, recognizing circulations, screening out circulations capable of arranging a software pipeline; reinforcing the program, adding error detection instructions to the program, performing equivalent conversion on a part of instructions through an instruction diversity conversion method, and performing double calculation on the rest instructions, inserting the detection instructions before instruction storage and instruction jumping, optimizing the detection instructions through DSP instruction condition execution characters and the equivalent conversion method, and reducing the performance cost due to reinforcement through the delay error processing method for the circulations capable of arranging the software pipeline; and executing the reinforcement program, and detecting soft errors during operation. The DSP soft error detection method is a DSP reinforcement method of pure software, is high in detection rate of date errors, and is low in performance cost of reinforcement.

Description

technical field [0001] The invention relates to an error detection method for a digital signal processor DSP (Digital Signal Processor) program, in particular to a method for detecting soft errors caused by space high-energy particle radiation. Background technique [0002] In recent years, with the development of integrated circuit process technology, processor designers have adopted higher and higher clock frequencies, lower and lower voltage levels, and smaller and smaller process sizes. While these technologies bring higher performance and lower power consumption, they also make the processor more sensitive to transient faults, which threaten the correctness of program execution. These transient faults are usually induced by high-energy particle radiation and voltage disturbance, electromagnetic interference, etc. in the external environment. Compared with hardware errors caused by permanent faults, such errors are transient, random in time and location, and recoverable...

AI Technical Summary

Problems solved by technology

[0041] The technical problem to be solved by the present invention is to overcome the problem that the existing soft error detection method is not suitable for DSP and the execution performance overhead based on the source code level method is large, and to provide a DSP soft error detection method based on the differential transformation of linear assembly instructions , convert the linear assembly source program into a linear assembly program with soft error detection capability, through three instruction difference transformation methods: instruction equivalence transformation, optimization detection instruction, delay error handling, significantly improve the execution efficiency of the hardened code, and at the same time Increase the difference between instructions to maximize the exposure of faults and improve the detection rate of soft errors

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