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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

JFloat: uma biblioteca de ponto flutuante para a linguagem Java com suporte a arredondamento direcionado / JFloat: a floating point library with directed rounding mode support for Java language

Silva, Jos? Frank Viana da 30 November 2007 (has links)
Made available in DSpace on 2014-12-17T15:47:47Z (GMT). No. of bitstreams: 1 JoseFVS.pdf: 404321 bytes, checksum: 4e0ffed231c4c23b63bb8f6830619c82 (MD5) Previous issue date: 2007-11-30 / This work presents JFLoat, a software implementation of IEEE-754 standard for binary floating point arithmetic. JFloat was built to provide some features not implemented in Java, specifically directed rounding support. That feature is important for Java-XSC, a project developed in this Department. Also, Java programs should have same portability when using floating point operations, mainly because IEEE-754 specifies that programs should have exactly same behavior on every configuration. However, it was noted that programs using Java native floating point types may be machine and operating system dependent. Also, JFloat is a possible solution to that problem / Este trabalho apresenta JFloat, uma implementa??o de software do padr?o IEEE-754 de aritm?tica de ponto flutuante bin?ria. JFloat foi constru?da para prover algumas caracter?sticas n?o implementadas em Java, especificamente o suporte ao arredondamento direcionado. Esta caracter?stica ? de grande import?ncia para o prosseguimento do projeto Java-XSC, em desenvolvimento por esta linha de pesquisa. Apesar de programas escritos em Java, a princ?pio, serem port?veis para qualquer arquitetura ao usar opera??es de ponto flutuante, principalmente porque IEEE-754 especifica que programas deveriam ter precisamente o mesmo comportamento em toda configura??o, observou-se que programas que usam tipos de ponto flutuantes nativos de Java podem ser dependentes da m?quina e do sistema operacional. JFloat tamb?m se apresenta como uma poss?vel solu??o para este problema

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