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计算机工程 ›› 2009, Vol. 35 ›› Issue (2): 1-3. doi: 10.3969/j.issn.1000-3428.2009.02.001

• 博士论文 •    下一篇

IA-64软件流水中旋转寄存器逆向分析技术

汪 淼1,2,赵荣彩1,蔡国明3,丁志芳2   

  1. (1. 解放军信息工程大学信息工程学院,郑州 450002;2. 解放军信息工程大学理学院,郑州 450001;3. 解放军信息工程大学电子技术学院,郑州 450004)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-01-20 发布日期:2009-01-20

Reverse Analysis Technique of Register Rotation in IA-64 Software-pipelined Loops

WANG Miao1,2, ZHAO Rong-cai1, CAI Guo-ming3, DING Zhi-fang2   

  1. (1. Institute of Information Engineering, PLA Information Engineering University, Zhengzhou 450002; 2. Institute of Science, PLA Information Engineering University, Zhengzhou 450001; 3. Institute of Electronic Technology, PLA Information Engineering University, Zhengzhou 450004)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-01-20 Published:2009-01-20

摘要: 安腾(IA-64)提供的旋转寄存器机制使软件流水代码难于理解、调试和移植,在分析IA-64旋转寄存器机制的基础上,提出一种旋转寄存器逆向分析方法。该方法通过分析软件流水阶段计算旋转间距,由旋转间距识别出流水代码中的旋转相关寄存器。将该方法应用于静态二进制编译系统I2A中,通过实验证明能够有效消除旋转寄存器对二进制翻译带来的影响。

关键词: 安腾, 软件流水, 旋转寄存器

Abstract: Register rotation feature provided by IA-64 makes the software-pipelined loops difficult to understand, debug and migrate to other hardware plats. Based on studying the register rotation mechanism, this paper presents a method for reverse analyzing rotated register. Through dividing the software-pipelined loops into different stages and computing the rotated interval, it can identify the rotated-related registers. The method is applied to a static binary translation system I2A. The experimental results demonstrate that the proposed method is effective to eliminate the effect of register rotation on binary translation.

Key words: IA-64, software-pipelined loops, register rotation

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