| "龙腾R2"微处理器精确中断优化实现 |
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| 引用本文： | 席晨,张盛兵,沈绪榜. "龙腾R2"微处理器精确中断优化实现[J]. 计算机应用研究, 2007, 24(7): 186-188,241 |
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| 作者姓名： | 席晨 张盛兵 沈绪榜 |
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| 作者单位： | 西北工业大学,航空微电子中心,陕西,西安,710072;西北工业大学,航空微电子中心,陕西,西安,710072;西北工业大学,航空微电子中心,陕西,西安,710072 |
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| 基金项目： | 国家自然科学基金 , 西北工业大学校科研和教改项目 |
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| 摘 要： | 介绍了"龙腾R2"微处理器精确中断的实现方法,详细讨论了备份缓冲区精确中断优化方法和中断指令缓冲区中断响应机制.在"龙腾R2"微处理器上的实验结果表明,采用备份缓冲区和中断指令缓冲区的精确中断方法在不影响微处理器速度的情况下,中断响应速度是原来的3.5倍,中断返回速度是原来的2.6倍.
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| 关 键 词： | 流水线 精确中断 " 龙腾R2" 微处理器 |
| 文章编号： | 1001-3695（2007）07-0186-03 |
| 修稿时间： | 2006-06-102006-08-29 |
Optimized Realization of Precise Interrupt on Microprocessor "Longtium R2" |
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| XI Chen,ZHANG Sheng-bing,SHEN Xu-bang. Optimized Realization of Precise Interrupt on Microprocessor "Longtium R2"[J]. Application Research of Computers, 2007, 24(7): 186-188,241 |
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| Authors: | XI Chen ZHANG Sheng-bing SHEN Xu-bang |
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| Abstract: | The microprocessor "Longtium R2" is compatible with PowerPC architecture.The implementation of precise interrupt on "Longtium R2" was introduced.An optimized method of precise interrupt based backup-buffer and mechanism of interrupt response based interrupt instruction buffer were detailed discussed.The experimental results on microprocessor "Longtium R2" indicate the method with backup-buffer and interrupt instruction buffer can improve the speed of interrupt response by 3 times and the speed of return from interrupts by 2.3 times in case of not reducing the frequency of processor. |
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| Keywords: | pipeline,precise interrupt,microprocessor " Longtium R2" |
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