Computer Science & Technology

Generating Model of Test Case for Normalized Corner Floating- Point Multiplication Based on Hensel Lemma

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  • Xi'an Microelectronics Technology Institute,Xi'an 710065,Shaanxi,China
冯春阳(1980-),男,博士生,主要从事数字信号处理、高性能微处理器设计与验证研究.

Received date: 2013-08-28

  Revised date: 2013-10-09

  Online published: 2014-04-01

Supported by

国家航天科技重点攻关项目(617010707);国家核高基专项(2012ZX01021-001- A1, 208ZX01020-301);国家某武器系统信息化项目(02-03- FJ1010)

Abstract

In order to overcome the major drawbacks existing in the simulation- based verification of floating- pointmultiplication,such as too large test space,dissatisfying test coverage and difficult corner case location,a genera-ting model of test case for normalized corner floating- point multiplication is constructed on the basis of Hensel lemma.Then,the test case and product are discussed concerning both positively-and negatively- normalized corner floating-point numbers.The results indicate that,in comparison with the traditional corner verification method,theproposed method improves the average error- detecting rate by about 7.39%; especially,it helps achieve an error-detecting rate at different floating- point bit widths up to 9.77%.Thus,it is concluded that the proposed modeleffectively improves the functional coverage and reliability of floating- point multiplication.

Cite this article

Feng Chun- yang Yan Xin Yang Liang Huang Shi- tan . Generating Model of Test Case for Normalized Corner Floating- Point Multiplication Based on Hensel Lemma[J]. Journal of South China University of Technology(Natural Science), 2014 , 42(5) : 128 -134 . DOI: 10.3969/j.issn.1000-565X.2014.05.020

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