Invention Grant
US09400635B1 Methods and apparatus for performing dynamic data alignment for floating-point operations 有权
用于执行浮点运算的动态数据对齐的方法和装置

  • Patent Title: Methods and apparatus for performing dynamic data alignment for floating-point operations
  • Patent Title (中): 用于执行浮点运算的动态数据对齐的方法和装置
  • Application No.: US13741266
    Application Date: 2013-01-14
  • Publication No.: US09400635B1
    Publication Date: 2016-07-26
  • Inventor: Tomasz Sebastian Czajkowski
  • Applicant: Altera Corporation
  • Applicant Address: US CA San Jose
  • Assignee: Altera Corporation
  • Current Assignee: Altera Corporation
  • Current Assignee Address: US CA San Jose
  • Agent Jason Tsai
  • Main IPC: G06F5/01
  • IPC: G06F5/01
Methods and apparatus for performing dynamic data alignment for floating-point operations
Abstract:
An integrated circuit is provided that performs floating-point operations involving at least two successive computational steps. Two floating-point numbers entering any additional computational step after the first computational step are aligned dynamically by shifting the mantissa of the floating-point number with the greater exponent to the left and the mantissa of the floating-point number with the smaller exponent to the right. The number of left shift bits is dependent on the magnitude of the difference between the two floating-point exponents and the number of leading zeroes in the mantissa with the greater exponent. The number of right shift bits is dependent on the magnitude of the difference between the two floating-point exponents and the number of left shift bits.
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