电子学报2012，Vol.40Issue(9)：1715-1722,8.DOI:10.3969/j.issn.0372-2112.2012.09.003
定制VLIW结构实现四精度浮点基本函数
A Special-Purpose VLIW Structure to Implement Quadruple Precision Floating-Point Elementary Functions
摘要
Abstract
This paper proposes a quadruple precision floating-point elementary function co-processor based on very large instruction word (VLIW) structure (QPC-Processor),which exploits the parallelism through the explicitly parallel technology of the VLIW structure. Variety of quadruple precision elementary functions is evaluated via the different combination of basic operation in the unified hardware.Finally, we prototype the QPC-Processor units into FPGA chip.The experimental results show our design outperforms the software approach by a factor of more than 6. Moreover, high utilization of hardware resource can be obtained in QFC-Processor.关键词
四精度浮点算术/超长指令字/基本函数/CORDIC算法Key words
quadruple precision floating-point arithmetic/ very long instruction word (VLIW)/ elementary function/ CORDIC algorithm分类
信息技术与安全科学引用本文复制引用
雷元武,窦勇,倪时策,周杰..定制VLIW结构实现四精度浮点基本函数[J].电子学报,2012,40(9):1715-1722,8.基金项目
国家自然科学基金(No.61125201) （No.61125201）
