发明授权
US08533248B2 Processing unit 有权
处理单元

  • 专利标题: Processing unit
  • 专利标题(中): 处理单元
  • 申请号: US12825588
    申请日: 2010-06-29
  • 公开(公告)号: US08533248B2
    公开(公告)日: 2013-09-10
  • 发明人: Mikio Hondou
  • 申请人: Mikio Hondou
  • 申请人地址: JP Kawasaki
  • 专利权人: Fujitsu Limited
  • 当前专利权人: Fujitsu Limited
  • 当前专利权人地址: JP Kawasaki
  • 代理机构: Staas & Halsey LLP
  • 优先权: JP2009-154890 20090630
  • 主分类号: G06F7/548
  • IPC分类号: G06F7/548
Processing unit
摘要:
A processing unit computes a trigonometric function, for decrease the number of instructions and improve throughput. In a floating point multiply-add circuit, an OR circuit, a selector and an EOR circuit are disposed, and an expansion point and expansion function of the Taylor series expansion of the trigonometric function are computed using a first trigonometric function operation auxiliary instruction for defining the operation of rd=(rs1*rs1)|(rs2 [0]
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