发明授权
- 专利标题: Processing unit
- 专利标题(中): 处理单元
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申请号: US12825588申请日: 2010-06-29
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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
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]
公开/授权文献
- US20100332573A1 PROCESSING UNIT 公开/授权日:2010-12-30
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