针对DSP指令生成与二进制翻译的汇编器实现

Implementation of assembler for DSP code generation and binary translation

DSP指令生成与优化和二进制翻译是现代编译工具值得关注的热点问题。针对DSP指令的特点提出一种通用的DSP指令生成(支持VLIW指令)与二进制翻译技术,并应用于GNU汇编器(GAS)。包含该技术的汇编器PCA(Post Compilation Assembler)先将输入的汇编指令转化成类似LISP的中间语言。PCA通过对此中间语言分析以及窥孔优化,最终生成高质量的目标平台DSP代码。

DSP code generation and optimization,along with binary translation,has become a well-concerning focus of the modern tool chain.This paper,on account of the specialties of DSP instruction,proposed a general method of DSP code generating（include VLIW） and binary translation,which applied in GNU assembler（GAS）.GAS with this technology（called PCA） first translates source assembly instructions into LISP-like intermediate representation（IR）;by analyzing the behaviors of the IR statements and employing post-compilation techniques such as peephole optimization,PCA will produce DSP codes of high quality suitable for the target platform.