A compiler for a digital signal processor

Abstract

The invention discloses a compiler of a digital signal processor, comprising a syntax checking unit, a compiling unit, a first-level linker, an optimization unit, an operation-step distributor and a second-level linker which are connected in sequence and in series, wherein the syntax checking unit is used for carrying out syntax checking; the compiling unit is used for compiling a model description file into assembly level codes applicable to a DSP (Digital Signal Processor), and outputting the assembly level codes to the first-level linker; the first-level linker is used for linking the assembly codes outputted by the compiling unit, finding out synchronous data information and generating a linking relationship of functions under all frequencies; the optimization unit is used for carrying out primary optimization on the data outputted by the first-level linker; after finishing the arrangement under each frequency, the operation-step distributor needs to be linked with the operation of the synchronous register according to the needs, and finishes relevant codes needing to be operated under each frequency; the second-level linker is used for carrying out secondary linking on linked lists distributed by the operation-step distributor, inserting frequency-dividing skip instructions, and finally finishing linking of the whole DSP codes and outputting microcodes applicable to the processor.

Description

【Technical field】 [0001] The invention relates to the field of a compiler for an embedded digital signal processor core. The source code of the compiler is more intuitive and easy to understand than the traditional C language, and is especially suitable for processing digital signals with different operating frequencies. 【Background technique】 [0002] The source code processed by the compiler of the general-purpose embedded processor or digital signal processor is generally embedded C language. The C language is very versatile and flexible to write, and the compiler front-end tools based on the C language are also very mature. At present, the compiler design of the general processor core is only responsible for writing the back-end tools for developing the compiler. But when the software design is oriented towards hardware description, the C language will become very complicated, and a lot of information cannot be represented intuitively, such as the working frequency of t...

AI Technical Summary

Problems solved by technology

But when the software design is oriented towards hardware description, the C language will become very complicated, and a lot of information cannot be displayed intuitively, such as the working frequency of the source code, the context of the data flow, etc.

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