发明授权
US07257696B2 Methods and apparatus for initiating and resynchronizing multi-cycle SIMD instructions
有权
用于启动和重新同步多周期SIMD指令的方法和装置
- 专利标题: Methods and apparatus for initiating and resynchronizing multi-cycle SIMD instructions
- 专利标题(中): 用于启动和重新同步多周期SIMD指令的方法和装置
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申请号: US10641441申请日: 2003-08-15
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公开(公告)号: US07257696B2公开(公告)日: 2007-08-14
- 发明人: Gerald George Pechanek , David Strube , Edward A. Wolff , Edwin Franklin Barry , Grayson Morris , Carl Donald Busboom , Dale Edward Schneider
- 申请人: Gerald George Pechanek , David Strube , Edward A. Wolff , Edwin Franklin Barry , Grayson Morris , Carl Donald Busboom , Dale Edward Schneider
- 申请人地址: US CA San Jose
- 专利权人: Altera Corporation
- 当前专利权人: Altera Corporation
- 当前专利权人地址: US CA San Jose
- 代理机构: Priest & Goldstein, PLLC
- 主分类号: G06F9/302
- IPC分类号: G06F9/302
摘要:
Techniques for adding more complex instructions and their attendant multi-cycle execution units with a single instruction multiple data stream (SIMD) very long instruction word (VLIW) processing framework are described. In one aspect, an initiation mechanism also acts as a resynchronization mechanism to read the results of multi-cycle execution. This multi-purpose mechanism operates with a short instruction word (SIW) issue of the multi-cycle instruction, in a sequence processor (SP) alone, with a VLIW, and across all processing elements (PEs) individually or as an array of PEs. A number of advantageous floating point instructions are also described.
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