Invention Grant
US08370415B2 Overflow detection and clamping with parallel operand processing for fixed-point multipliers 有权
用于定点乘法器的并行操作数处理的溢出检测和钳位

  • Patent Title: Overflow detection and clamping with parallel operand processing for fixed-point multipliers
  • Patent Title (中): 用于定点乘法器的并行操作数处理的溢出检测和钳位
  • Application No.: US11712765
    Application Date: 2007-02-28
  • Publication No.: US08370415B2
    Publication Date: 2013-02-05
  • Inventor: Ole Bentz
  • Applicant: Ole Bentz
  • Applicant Address: US ID Boise
  • Assignee: Micron Technology, Inc.
  • Current Assignee: Micron Technology, Inc.
  • Current Assignee Address: US ID Boise
  • Agency: TraskBritt
  • Main IPC: G06F7/38
  • IPC: G06F7/38
Overflow detection and clamping with parallel operand processing for fixed-point multipliers
Abstract:
A method and apparatus for overflow detection and clamping with parallel operand processing for fixed-point multipliers is disclosed. The invention predicts when a multiplication of a number of operands will exceed a pre-determined number of bits based upon the fixed-point format of the operands. The prediction is performed in parallel with the multiplication of the operands. The multiplication need not be completed in full, but only to the extent to determine whether overflow exists. If an overflow detection occurs, clamping is instituted. The parallel operation of the overflow detection and the multiplication provides a faster clamping circuit than would otherwise be available from a serial multiplication followed by a clamping analysis.
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